require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var $ = require('./util/preconditions');
var errors = require('./errors');
var Base58Check = require('./encoding/base58check');
var Networks = require('./networks');
var Hash = require('./crypto/hash');
var JSUtil = require('./util/js');
var PublicKey = require('./publickey');

/**
 * Instantiate an address from an address String or Buffer, a public key or script hash Buffer,
 * or an instance of {@link PublicKey} or {@link Script}.
 *
 * This is an immutable class, and if the first parameter provided to this constructor is an
 * `Address` instance, the same argument will be returned.
 *
 * An address has two key properties: `network` and `type`. The type is either
 * `Address.PayToPublicKeyHash` (value is the `'pubkeyhash'` string)
 * or `Address.PayToScriptHash` (the string `'scripthash'`). The network is an instance of {@link Network}.
 * You can quickly check whether an address is of a given kind by using the methods
 * `isPayToPublicKeyHash` and `isPayToScriptHash`
 *
 * @example
 * ```javascript
 * // validate that an input field is valid
 * var error = Address.getValidationError(input, 'testnet');
 * if (!error) {
 *   var address = Address(input, 'testnet');
 * } else {
 *   // invalid network or checksum (typo?)
 *   var message = error.messsage;
 * }
 *
 * // get an address from a public key
 * var address = Address(publicKey, 'testnet').toString();
 * ```
 *
 * @param {*} data - The encoded data in various formats
 * @param {Network|String|number=} network - The network: 'livenet' or 'testnet'
 * @param {string=} type - The type of address: 'script' or 'pubkey'
 * @returns {Address} A new valid and frozen instance of an Address
 * @constructor
 */
function Address(data, network, type) {
  /* jshint maxcomplexity: 12 */
  /* jshint maxstatements: 20 */

  if (!(this instanceof Address)) {
    return new Address(data, network, type);
  }

  if (_.isArray(data) && _.isNumber(network)) {
    return Address.createMultisig(data, network, type);
  }

  if (data instanceof Address) {
    // Immutable instance
    return data;
  }

  $.checkArgument(data, 'First argument is required, please include address data.', 'guide/address.html');

  if (network && !Networks.get(network)) {
    throw new TypeError('Second argument must be "livenet" or "testnet".');
  }

  if (type && (type !== Address.PayToPublicKeyHash && type !== Address.PayToScriptHash)) {
    throw new TypeError('Third argument must be "pubkeyhash" or "scripthash".');
  }

  var info = this._classifyArguments(data, network, type);

  // set defaults if not set
  info.network = info.network || Networks.get(network) || Networks.defaultNetwork;
  info.type = info.type || type || Address.PayToPublicKeyHash;

  JSUtil.defineImmutable(this, {
    hashBuffer: info.hashBuffer,
    network: info.network,
    type: info.type
  });

  return this;
}

/**
 * Internal function used to split different kinds of arguments of the constructor
 * @param {*} data - The encoded data in various formats
 * @param {Network|String|number=} network - The network: 'livenet' or 'testnet'
 * @param {string=} type - The type of address: 'script' or 'pubkey'
 * @returns {Object} An "info" object with "type", "network", and "hashBuffer"
 */
Address.prototype._classifyArguments = function(data, network, type) {
  /* jshint maxcomplexity: 10 */
  // transform and validate input data
  if ((data instanceof Buffer || data instanceof Uint8Array) && data.length === 20) {
    return Address._transformHash(data);
  } else if ((data instanceof Buffer || data instanceof Uint8Array) && data.length === 21) {
    return Address._transformBuffer(data, network, type);
  } else if (data instanceof PublicKey) {
    return Address._transformPublicKey(data);
  } else if (data instanceof Script) {
    return Address._transformScript(data, network);
  } else if (typeof(data) === 'string') {
    return Address._transformString(data, network, type);
  } else if (_.isObject(data)) {
    return Address._transformObject(data);
  } else {
    throw new TypeError('First argument is an unrecognized data format.');
  }
};

/** @static */
Address.PayToPublicKeyHash = 'pubkeyhash';
/** @static */
Address.PayToScriptHash = 'scripthash';

/**
 * @param {Buffer} hash - An instance of a hash Buffer
 * @returns {Object} An object with keys: hashBuffer
 * @private
 */
Address._transformHash = function(hash) {
  var info = {};
  if (!(hash instanceof Buffer) && !(hash instanceof Uint8Array)) {
    throw new TypeError('Address supplied is not a buffer.');
  }
  if (hash.length !== 20) {
    throw new TypeError('Address hashbuffers must be exactly 20 bytes.');
  }
  info.hashBuffer = hash;
  return info;
};

/**
 * Deserializes an address serialized through `Address#toObject()`
 * @param {Object} data
 * @param {string} data.hash - the hash that this address encodes
 * @param {string} data.type - either 'pubkeyhash' or 'scripthash'
 * @param {Network=} data.network - the name of the network associated
 * @return {Address}
 */
Address._transformObject = function(data) {
  $.checkArgument(data.hash || data.hashBuffer, 'Must provide a `hash` or `hashBuffer` property');
  $.checkArgument(data.type, 'Must provide a `type` property');
  return {
    hashBuffer: data.hash ? new Buffer(data.hash, 'hex') : data.hashBuffer,
    network: Networks.get(data.network) || Networks.defaultNetwork,
    type: data.type
  };
};

/**
 * Internal function to discover the network and type based on the first data byte
 *
 * @param {Buffer} buffer - An instance of a hex encoded address Buffer
 * @returns {Object} An object with keys: network and type
 * @private
 */
Address._classifyFromVersion = function(buffer) {
  var version = {};

  var pubkeyhashNetwork = Networks.get(buffer[0], 'pubkeyhash');
  var scripthashNetwork = Networks.get(buffer[0], 'scripthash');

  if (pubkeyhashNetwork) {
    version.network = pubkeyhashNetwork;
    version.type = Address.PayToPublicKeyHash;
  } else if (scripthashNetwork) {
    version.network = scripthashNetwork;
    version.type = Address.PayToScriptHash;
  }

  return version;
};

/**
 * Internal function to transform a bitcoin address buffer
 *
 * @param {Buffer} buffer - An instance of a hex encoded address Buffer
 * @param {string=} network - The network: 'livenet' or 'testnet'
 * @param {string=} type - The type: 'pubkeyhash' or 'scripthash'
 * @returns {Object} An object with keys: hashBuffer, network and type
 * @private
 */
Address._transformBuffer = function(buffer, network, type) {
  /* jshint maxcomplexity: 9 */
  var info = {};
  if (!(buffer instanceof Buffer) && !(buffer instanceof Uint8Array)) {
    throw new TypeError('Address supplied is not a buffer.');
  }
  if (buffer.length !== 1 + 20) {
    throw new TypeError('Address buffers must be exactly 21 bytes.');
  }

  network = Networks.get(network);
  var bufferVersion = Address._classifyFromVersion(buffer);

  if (!bufferVersion.network || (network && network !== bufferVersion.network)) {
    throw new TypeError('Address has mismatched network type.');
  }

  if (!bufferVersion.type || (type && type !== bufferVersion.type)) {
    throw new TypeError('Address has mismatched type.');
  }

  info.hashBuffer = buffer.slice(1);
  info.network = bufferVersion.network;
  info.type = bufferVersion.type;
  return info;
};

/**
 * Internal function to transform a {@link PublicKey}
 *
 * @param {PublicKey} pubkey - An instance of PublicKey
 * @returns {Object} An object with keys: hashBuffer, type
 * @private
 */
Address._transformPublicKey = function(pubkey) {
  var info = {};
  if (!(pubkey instanceof PublicKey)) {
    throw new TypeError('Address must be an instance of PublicKey.');
  }
  info.hashBuffer = Hash.sha256ripemd160(pubkey.toBuffer());
  info.type = Address.PayToPublicKeyHash;
  return info;
};

/**
 * Internal function to transform a {@link Script} into a `info` object.
 *
 * @param {Script} script - An instance of Script
 * @returns {Object} An object with keys: hashBuffer, type
 * @private
 */
Address._transformScript = function(script, network) {
  $.checkArgument(script instanceof Script, 'script must be a Script instance');
  var info = script.getAddressInfo(network);
  if (!info) {
    throw new errors.Script.CantDeriveAddress(script);
  }
  return info;
};

/**
 * Creates a P2SH address from a set of public keys and a threshold.
 *
 * The addresses will be sorted lexicographically, as that is the trend in bitcoin.
 * To create an address from unsorted public keys, use the {@link Script#buildMultisigOut}
 * interface.
 *
 * @param {Array} publicKeys - a set of public keys to create an address
 * @param {number} threshold - the number of signatures needed to release the funds
 * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet'
 * @return {Address}
 */
Address.createMultisig = function(publicKeys, threshold, network) {
  network = network || publicKeys[0].network || Networks.defaultNetwork;
  return Address.payingTo(Script.buildMultisigOut(publicKeys, threshold), network);
};

/**
 * Internal function to transform a bitcoin address string
 *
 * @param {string} data
 * @param {String|Network=} network - either a Network instance, 'livenet', or 'testnet'
 * @param {string=} type - The type: 'pubkeyhash' or 'scripthash'
 * @returns {Object} An object with keys: hashBuffer, network and type
 * @private
 */
Address._transformString = function(data, network, type) {
  if (typeof(data) !== 'string') {
    throw new TypeError('data parameter supplied is not a string.');
  }
  data = data.trim();
  var addressBuffer = Base58Check.decode(data);
  var info = Address._transformBuffer(addressBuffer, network, type);
  return info;
};

/**
 * Instantiate an address from a PublicKey instance
 *
 * @param {PublicKey} data
 * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet'
 * @returns {Address} A new valid and frozen instance of an Address
 */
Address.fromPublicKey = function(data, network) {
  var info = Address._transformPublicKey(data);
  network = network || Networks.defaultNetwork;
  return new Address(info.hashBuffer, network, info.type);
};

/**
 * Instantiate an address from a ripemd160 public key hash
 *
 * @param {Buffer} hash - An instance of buffer of the hash
 * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet'
 * @returns {Address} A new valid and frozen instance of an Address
 */
Address.fromPublicKeyHash = function(hash, network) {
  var info = Address._transformHash(hash);
  return new Address(info.hashBuffer, network, Address.PayToPublicKeyHash);
};

/**
 * Instantiate an address from a ripemd160 script hash
 *
 * @param {Buffer} hash - An instance of buffer of the hash
 * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet'
 * @returns {Address} A new valid and frozen instance of an Address
 */
Address.fromScriptHash = function(hash, network) {
  $.checkArgument(hash, 'hash parameter is required');
  var info = Address._transformHash(hash);
  return new Address(info.hashBuffer, network, Address.PayToScriptHash);
};

/**
 * Builds a p2sh address paying to script. This will hash the script and
 * use that to create the address.
 * If you want to extract an address associated with a script instead,
 * see {{Address#fromScript}}
 *
 * @param {Script} script - An instance of Script
 * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet'
 * @returns {Address} A new valid and frozen instance of an Address
 */
Address.payingTo = function(script, network) {
  $.checkArgument(script, 'script is required');
  $.checkArgument(script instanceof Script, 'script must be instance of Script');

  return Address.fromScriptHash(Hash.sha256ripemd160(script.toBuffer()), network);
};

/**
 * Extract address from a Script. The script must be of one
 * of the following types: p2pkh input, p2pkh output, p2sh input
 * or p2sh output.
 * This will analyze the script and extract address information from it.
 * If you want to transform any script to a p2sh Address paying
 * to that script's hash instead, use {{Address#payingTo}}
 *
 * @param {Script} script - An instance of Script
 * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet'
 * @returns {Address} A new valid and frozen instance of an Address
 */
Address.fromScript = function(script, network) {
  $.checkArgument(script instanceof Script, 'script must be a Script instance');
  var info = Address._transformScript(script, network);
  return new Address(info.hashBuffer, network, info.type);
};

/**
 * Instantiate an address from a buffer of the address
 *
 * @param {Buffer} buffer - An instance of buffer of the address
 * @param {String|Network=} network - either a Network instance, 'livenet', or 'testnet'
 * @param {string=} type - The type of address: 'script' or 'pubkey'
 * @returns {Address} A new valid and frozen instance of an Address
 */
Address.fromBuffer = function(buffer, network, type) {
  var info = Address._transformBuffer(buffer, network, type);
  return new Address(info.hashBuffer, info.network, info.type);
};

/**
 * Instantiate an address from an address string
 *
 * @param {string} str - An string of the bitcoin address
 * @param {String|Network=} network - either a Network instance, 'livenet', or 'testnet'
 * @param {string=} type - The type of address: 'script' or 'pubkey'
 * @returns {Address} A new valid and frozen instance of an Address
 */
Address.fromString = function(str, network, type) {
  var info = Address._transformString(str, network, type);
  return new Address(info.hashBuffer, info.network, info.type);
};

/**
 * Instantiate an address from an Object
 *
 * @param {string} json - An JSON string or Object with keys: hash, network and type
 * @returns {Address} A new valid instance of an Address
 */
Address.fromObject = function fromObject(obj) {
  $.checkState(
    JSUtil.isHexa(obj.hash),
    'Unexpected hash property, "' + obj.hash + '", expected to be hex.'
  );
  var hashBuffer = new Buffer(obj.hash, 'hex');
  return new Address(hashBuffer, obj.network, obj.type);
};

/**
 * Will return a validation error if exists
 *
 * @example
 * ```javascript
 * // a network mismatch error
 * var error = Address.getValidationError('15vkcKf7gB23wLAnZLmbVuMiiVDc1Nm4a2', 'testnet');
 * ```
 *
 * @param {string} data - The encoded data
 * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet'
 * @param {string} type - The type of address: 'script' or 'pubkey'
 * @returns {null|Error} The corresponding error message
 */
Address.getValidationError = function(data, network, type) {
  var error;
  try {
    /* jshint nonew: false */
    new Address(data, network, type);
  } catch (e) {
    error = e;
  }
  return error;
};

/**
 * Will return a boolean if an address is valid
 *
 * @example
 * ```javascript
 * assert(Address.isValid('15vkcKf7gB23wLAnZLmbVuMiiVDc1Nm4a2', 'livenet'));
 * ```
 *
 * @param {string} data - The encoded data
 * @param {String|Network} network - either a Network instance, 'livenet', or 'testnet'
 * @param {string} type - The type of address: 'script' or 'pubkey'
 * @returns {boolean} The corresponding error message
 */
Address.isValid = function(data, network, type) {
  return !Address.getValidationError(data, network, type);
};

/**
 * Returns true if an address is of pay to public key hash type
 * @return boolean
 */
Address.prototype.isPayToPublicKeyHash = function() {
  return this.type === Address.PayToPublicKeyHash;
};

/**
 * Returns true if an address is of pay to script hash type
 * @return boolean
 */
Address.prototype.isPayToScriptHash = function() {
  return this.type === Address.PayToScriptHash;
};

/**
 * Will return a buffer representation of the address
 *
 * @returns {Buffer} Bitcoin address buffer
 */
Address.prototype.toBuffer = function() {
  var version = new Buffer([this.network[this.type]]);
  var buf = Buffer.concat([version, this.hashBuffer]);
  return buf;
};

/**
 * @returns {Object} A plain object with the address information
 */
Address.prototype.toObject = Address.prototype.toJSON = function toObject() {
  return {
    hash: this.hashBuffer.toString('hex'),
    type: this.type,
    network: this.network.toString()
  };
};

/**
 * Will return a the string representation of the address
 *
 * @returns {string} Bitcoin address
 */
Address.prototype.toString = function() {
  return Base58Check.encode(this.toBuffer());
};

/**
 * Will return a string formatted for the console
 *
 * @returns {string} Bitcoin address
 */
Address.prototype.inspect = function() {
  return '<Address: ' + this.toString() + ', type: ' + this.type + ', network: ' + this.network + '>';
};

module.exports = Address;

var Script = require('./script');

}).call(this,require("buffer").Buffer)
},{"./crypto/hash":8,"./encoding/base58check":13,"./errors":17,"./networks":25,"./publickey":28,"./script":29,"./util/js":47,"./util/preconditions":48,"buffer":95,"lodash":142}],2:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var BlockHeader = require('./blockheader');
var BN = require('../crypto/bn');
var BufferUtil = require('../util/buffer');
var BufferReader = require('../encoding/bufferreader');
var BufferWriter = require('../encoding/bufferwriter');
var Hash = require('../crypto/hash');
var Transaction = require('../transaction');
var $ = require('../util/preconditions');

/**
 * Instantiate a Block from a Buffer, JSON object, or Object with
 * the properties of the Block
 *
 * @param {*} - A Buffer, JSON string, or Object
 * @returns {Block}
 * @constructor
 */
function Block(arg) {
  if (!(this instanceof Block)) {
    return new Block(arg);
  }
  _.extend(this, Block._from(arg));
  return this;
}

// https://github.com/bitcoin/bitcoin/blob/b5fa132329f0377d787a4a21c1686609c2bfaece/src/primitives/block.h#L14
Block.MAX_BLOCK_SIZE = 1000000;

/**
 * @param {*} - A Buffer, JSON string or Object
 * @returns {Object} - An object representing block data
 * @throws {TypeError} - If the argument was not recognized
 * @private
 */
Block._from = function _from(arg) {
  var info = {};
  if (BufferUtil.isBuffer(arg)) {
    info = Block._fromBufferReader(BufferReader(arg));
  } else if (_.isObject(arg)) {
    info = Block._fromObject(arg);
  } else {
    throw new TypeError('Unrecognized argument for Block');
  }
  return info;
};

/**
 * @param {Object} - A plain JavaScript object
 * @returns {Object} - An object representing block data
 * @private
 */
Block._fromObject = function _fromObject(data) {
  var transactions = [];
  data.transactions.forEach(function(tx) {
    if (tx instanceof Transaction) {
      transactions.push(tx);
    } else {
      transactions.push(Transaction().fromObject(tx));
    }
  });
  var info = {
    header: BlockHeader.fromObject(data.header),
    transactions: transactions
  };
  return info;
};

/**
 * @param {Object} - A plain JavaScript object
 * @returns {Block} - An instance of block
 */
Block.fromObject = function fromObject(obj) {
  var info = Block._fromObject(obj);
  return new Block(info);
};

/**
 * @param {BufferReader} - Block data
 * @returns {Object} - An object representing the block data
 * @private
 */
Block._fromBufferReader = function _fromBufferReader(br) {
  var info = {};
  $.checkState(!br.finished(), 'No block data received');
  info.header = BlockHeader.fromBufferReader(br);
  var transactions = br.readVarintNum();
  info.transactions = [];
  for (var i = 0; i < transactions; i++) {
    info.transactions.push(Transaction().fromBufferReader(br));
  }
  return info;
};

/**
 * @param {BufferReader} - A buffer reader of the block
 * @returns {Block} - An instance of block
 */
Block.fromBufferReader = function fromBufferReader(br) {
  $.checkArgument(br, 'br is required');
  var info = Block._fromBufferReader(br);
  return new Block(info);
};

/**
 * @param {Buffer} - A buffer of the block
 * @returns {Block} - An instance of block
 */
Block.fromBuffer = function fromBuffer(buf) {
  return Block.fromBufferReader(new BufferReader(buf));
};

/**
 * @param {string} - str - A hex encoded string of the block
 * @returns {Block} - A hex encoded string of the block
 */
Block.fromString = function fromString(str) {
  var buf = new Buffer(str, 'hex');
  return Block.fromBuffer(buf);
};

/**
 * @param {Binary} - Raw block binary data or buffer
 * @returns {Block} - An instance of block
 */
Block.fromRawBlock = function fromRawBlock(data) {
  if (!BufferUtil.isBuffer(data)) {
    data = new Buffer(data, 'binary');
  }
  var br = BufferReader(data);
  br.pos = Block.Values.START_OF_BLOCK;
  var info = Block._fromBufferReader(br);
  return new Block(info);
};

/**
 * @returns {Object} - A plain object with the block properties
 */
Block.prototype.toObject = Block.prototype.toJSON = function toObject() {
  var transactions = [];
  this.transactions.forEach(function(tx) {
    transactions.push(tx.toObject());
  });
  return {
    header: this.header.toObject(),
    transactions: transactions
  };
};

/**
 * @returns {Buffer} - A buffer of the block
 */
Block.prototype.toBuffer = function toBuffer() {
  return this.toBufferWriter().concat();
};

/**
 * @returns {string} - A hex encoded string of the block
 */
Block.prototype.toString = function toString() {
  return this.toBuffer().toString('hex');
};

/**
 * @param {BufferWriter} - An existing instance of BufferWriter
 * @returns {BufferWriter} - An instance of BufferWriter representation of the Block
 */
Block.prototype.toBufferWriter = function toBufferWriter(bw) {
  if (!bw) {
    bw = new BufferWriter();
  }
  bw.write(this.header.toBuffer());
  bw.writeVarintNum(this.transactions.length);
  for (var i = 0; i < this.transactions.length; i++) {
    this.transactions[i].toBufferWriter(bw);
  }
  return bw;
};

/**
 * Will iterate through each transaction and return an array of hashes
 * @returns {Array} - An array with transaction hashes
 */
Block.prototype.getTransactionHashes = function getTransactionHashes() {
  var hashes = [];
  if (this.transactions.length === 0) {
    return [Block.Values.NULL_HASH];
  }
  for (var t = 0; t < this.transactions.length; t++) {
    hashes.push(this.transactions[t]._getHash());
  }
  return hashes;
};

/**
 * Will build a merkle tree of all the transactions, ultimately arriving at
 * a single point, the merkle root.
 * @link https://en.bitcoin.it/wiki/Protocol_specification#Merkle_Trees
 * @returns {Array} - An array with each level of the tree after the other.
 */
Block.prototype.getMerkleTree = function getMerkleTree() {

  var tree = this.getTransactionHashes();

  var j = 0;
  for (var size = this.transactions.length; size > 1; size = Math.floor((size + 1) / 2)) {
    for (var i = 0; i < size; i += 2) {
      var i2 = Math.min(i + 1, size - 1);
      var buf = Buffer.concat([tree[j + i], tree[j + i2]]);
      tree.push(Hash.sha256sha256(buf));
    }
    j += size;
  }

  return tree;
};

/**
 * Calculates the merkleRoot from the transactions.
 * @returns {Buffer} - A buffer of the merkle root hash
 */
Block.prototype.getMerkleRoot = function getMerkleRoot() {
  var tree = this.getMerkleTree();
  return tree[tree.length - 1];
};

/**
 * Verifies that the transactions in the block match the header merkle root
 * @returns {Boolean} - If the merkle roots match
 */
Block.prototype.validMerkleRoot = function validMerkleRoot() {

  var h = new BN(this.header.merkleRoot.toString('hex'), 'hex');
  var c = new BN(this.getMerkleRoot().toString('hex'), 'hex');

  if (h.cmp(c) !== 0) {
    return false;
  }

  return true;
};

/**
 * @returns {Buffer} - The little endian hash buffer of the header
 */
Block.prototype._getHash = function() {
  return this.header._getHash();
};

var idProperty = {
  configurable: false,
  enumerable: true,
  /**
   * @returns {string} - The big endian hash buffer of the header
   */
  get: function() {
    if (!this._id) {
      this._id = this.header.id;
    }
    return this._id;
  },
  set: _.noop
};
Object.defineProperty(Block.prototype, 'id', idProperty);
Object.defineProperty(Block.prototype, 'hash', idProperty);

/**
 * @returns {string} - A string formatted for the console
 */
Block.prototype.inspect = function inspect() {
  return '<Block ' + this.id + '>';
};

Block.Values = {
  START_OF_BLOCK: 8, // Start of block in raw block data
  NULL_HASH: new Buffer('0000000000000000000000000000000000000000000000000000000000000000', 'hex')
};

module.exports = Block;

}).call(this,require("buffer").Buffer)
},{"../crypto/bn":6,"../crypto/hash":8,"../encoding/bufferreader":14,"../encoding/bufferwriter":15,"../transaction":32,"../util/buffer":46,"../util/preconditions":48,"./blockheader":3,"buffer":95,"lodash":142}],3:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var BN = require('../crypto/bn');
var BufferUtil = require('../util/buffer');
var BufferReader = require('../encoding/bufferreader');
var BufferWriter = require('../encoding/bufferwriter');
var Hash = require('../crypto/hash');
var JSUtil = require('../util/js');
var $ = require('../util/preconditions');

var GENESIS_BITS = 0x1d00ffff;

/**
 * Instantiate a BlockHeader from a Buffer, JSON object, or Object with
 * the properties of the BlockHeader
 *
 * @param {*} - A Buffer, JSON string, or Object
 * @returns {BlockHeader} - An instance of block header
 * @constructor
 */
var BlockHeader = function BlockHeader(arg) {
  if (!(this instanceof BlockHeader)) {
    return new BlockHeader(arg);
  }
  var info = BlockHeader._from(arg);
  this.version = info.version;
  this.prevHash = info.prevHash;
  this.merkleRoot = info.merkleRoot;
  this.time = info.time;
  this.timestamp = info.time;
  this.bits = info.bits;
  this.nonce = info.nonce;

  if (info.hash) {
    $.checkState(
      this.hash === info.hash,
      'Argument object hash property does not match block hash.'
    );
  }

  return this;
};

/**
 * @param {*} - A Buffer, JSON string or Object
 * @returns {Object} - An object representing block header data
 * @throws {TypeError} - If the argument was not recognized
 * @private
 */
BlockHeader._from = function _from(arg) {
  var info = {};
  if (BufferUtil.isBuffer(arg)) {
    info = BlockHeader._fromBufferReader(BufferReader(arg));
  } else if (_.isObject(arg)) {
    info = BlockHeader._fromObject(arg);
  } else {
    throw new TypeError('Unrecognized argument for BlockHeader');
  }
  return info;
};

/**
 * @param {Object} - A JSON string
 * @returns {Object} - An object representing block header data
 * @private
 */
BlockHeader._fromObject = function _fromObject(data) {
  $.checkArgument(data, 'data is required');
  var prevHash = data.prevHash;
  var merkleRoot = data.merkleRoot;
  if (_.isString(data.prevHash)) {
    prevHash = BufferUtil.reverse(new Buffer(data.prevHash, 'hex'));
  }
  if (_.isString(data.merkleRoot)) {
    merkleRoot = BufferUtil.reverse(new Buffer(data.merkleRoot, 'hex'));
  }
  var info = {
    hash: data.hash,
    version: data.version,
    prevHash: prevHash,
    merkleRoot: merkleRoot,
    time: data.time,
    timestamp: data.time,
    bits: data.bits,
    nonce: data.nonce
  };
  return info;
};

/**
 * @param {Object} - A plain JavaScript object
 * @returns {BlockHeader} - An instance of block header
 */
BlockHeader.fromObject = function fromObject(obj) {
  var info = BlockHeader._fromObject(obj);
  return new BlockHeader(info);
};

/**
 * @param {Binary} - Raw block binary data or buffer
 * @returns {BlockHeader} - An instance of block header
 */
BlockHeader.fromRawBlock = function fromRawBlock(data) {
  if (!BufferUtil.isBuffer(data)) {
    data = new Buffer(data, 'binary');
  }
  var br = BufferReader(data);
  br.pos = BlockHeader.Constants.START_OF_HEADER;
  var info = BlockHeader._fromBufferReader(br);
  return new BlockHeader(info);
};

/**
 * @param {Buffer} - A buffer of the block header
 * @returns {BlockHeader} - An instance of block header
 */
BlockHeader.fromBuffer = function fromBuffer(buf) {
  var info = BlockHeader._fromBufferReader(BufferReader(buf));
  return new BlockHeader(info);
};

/**
 * @param {string} - A hex encoded buffer of the block header
 * @returns {BlockHeader} - An instance of block header
 */
BlockHeader.fromString = function fromString(str) {
  var buf = new Buffer(str, 'hex');
  return BlockHeader.fromBuffer(buf);
};

/**
 * @param {BufferReader} - A BufferReader of the block header
 * @returns {Object} - An object representing block header data
 * @private
 */
BlockHeader._fromBufferReader = function _fromBufferReader(br) {
  var info = {};
  info.version = br.readUInt32LE();
  info.prevHash = br.read(32);
  info.merkleRoot = br.read(32);
  info.time = br.readUInt32LE();
  info.bits = br.readUInt32LE();
  info.nonce = br.readUInt32LE();
  return info;
};

/**
 * @param {BufferReader} - A BufferReader of the block header
 * @returns {BlockHeader} - An instance of block header
 */
BlockHeader.fromBufferReader = function fromBufferReader(br) {
  var info = BlockHeader._fromBufferReader(br);
  return new BlockHeader(info);
};

/**
 * @returns {Object} - A plain object of the BlockHeader
 */
BlockHeader.prototype.toObject = BlockHeader.prototype.toJSON = function toObject() {
  return {
    hash: this.hash,
    version: this.version,
    prevHash: BufferUtil.reverse(this.prevHash).toString('hex'),
    merkleRoot: BufferUtil.reverse(this.merkleRoot).toString('hex'),
    time: this.time,
    bits: this.bits,
    nonce: this.nonce
  };
};

/**
 * @returns {Buffer} - A Buffer of the BlockHeader
 */
BlockHeader.prototype.toBuffer = function toBuffer() {
  return this.toBufferWriter().concat();
};

/**
 * @returns {string} - A hex encoded string of the BlockHeader
 */
BlockHeader.prototype.toString = function toString() {
  return this.toBuffer().toString('hex');
};

/**
 * @param {BufferWriter} - An existing instance BufferWriter
 * @returns {BufferWriter} - An instance of BufferWriter representation of the BlockHeader
 */
BlockHeader.prototype.toBufferWriter = function toBufferWriter(bw) {
  if (!bw) {
    bw = new BufferWriter();
  }
  bw.writeUInt32LE(this.version);
  bw.write(this.prevHash);
  bw.write(this.merkleRoot);
  bw.writeUInt32LE(this.time);
  bw.writeUInt32LE(this.bits);
  bw.writeUInt32LE(this.nonce);
  return bw;
};

/**
 * Returns the target difficulty for this block
 * @param {Number} bits
 * @returns {BN} An instance of BN with the decoded difficulty bits
 */
BlockHeader.prototype.getTargetDifficulty = function getTargetDifficulty(bits) {
  bits = bits || this.bits;

  var target = new BN(bits & 0xffffff);
  var mov = 8 * ((bits >>> 24) - 3);
  while (mov-- > 0) {
    target = target.mul(new BN(2));
  }
  return target;
};

/**
 * @link https://en.bitcoin.it/wiki/Difficulty
 * @return {Number}
 */
BlockHeader.prototype.getDifficulty = function getDifficulty() {
  var difficulty1TargetBN = this.getTargetDifficulty(GENESIS_BITS).mul(new BN(Math.pow(10, 8)));
  var currentTargetBN = this.getTargetDifficulty();

  var difficultyString = difficulty1TargetBN.div(currentTargetBN).toString(10);
  var decimalPos = difficultyString.length - 8;
  difficultyString = difficultyString.slice(0, decimalPos) + '.' + difficultyString.slice(decimalPos);

  return parseFloat(difficultyString);
};

/**
 * @returns {Buffer} - The little endian hash buffer of the header
 */
BlockHeader.prototype._getHash = function hash() {
  var buf = this.toBuffer();
  // return Hash.sha256sha256(buf);
  return Hash.x11(buf);
};

var idProperty = {
  configurable: false,
  enumerable: true,
  /**
   * @returns {string} - The big endian hash buffer of the header
   */
  get: function() {
    if (!this._id) {
      this._id = BufferReader(this._getHash()).readReverse().toString('hex');
    }
    return this._id;
  },
  set: _.noop
};
Object.defineProperty(BlockHeader.prototype, 'id', idProperty);
Object.defineProperty(BlockHeader.prototype, 'hash', idProperty);

/**
 * @returns {Boolean} - If timestamp is not too far in the future
 */
BlockHeader.prototype.validTimestamp = function validTimestamp() {
  var currentTime = Math.round(new Date().getTime() / 1000);
  if (this.time > currentTime + BlockHeader.Constants.MAX_TIME_OFFSET) {
    return false;
  }
  return true;
};

/**
 * @returns {Boolean} - If the proof-of-work hash satisfies the target difficulty
 */
BlockHeader.prototype.validProofOfWork = function validProofOfWork() {
  var pow = new BN(this.id, 'hex');
  var target = this.getTargetDifficulty();

  if (pow.cmp(target) > 0) {
    return false;
  }
  return true;
};

/**
 * @returns {string} - A string formatted for the console
 */
BlockHeader.prototype.inspect = function inspect() {
  return '<BlockHeader ' + this.id + '>';
};

BlockHeader.Constants = {
  START_OF_HEADER: 8, // Start buffer position in raw block data
  MAX_TIME_OFFSET: 2 * 60 * 60, // The max a timestamp can be in the future
  LARGEST_HASH: new BN('10000000000000000000000000000000000000000000000000000000000000000', 'hex')
};

module.exports = BlockHeader;

}).call(this,require("buffer").Buffer)
},{"../crypto/bn":6,"../crypto/hash":8,"../encoding/bufferreader":14,"../encoding/bufferwriter":15,"../util/buffer":46,"../util/js":47,"../util/preconditions":48,"buffer":95,"lodash":142}],4:[function(require,module,exports){
module.exports = require('./block');

module.exports.BlockHeader = require('./blockheader');
module.exports.MerkleBlock = require('./merkleblock');

},{"./block":2,"./blockheader":3,"./merkleblock":5}],5:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var BlockHeader = require('./blockheader');
var BufferUtil = require('../util/buffer');
var BufferReader = require('../encoding/bufferreader');
var BufferWriter = require('../encoding/bufferwriter');
var Hash = require('../crypto/hash');
var JSUtil = require('../util/js');
var Transaction = require('../transaction');
var $ = require('../util/preconditions');

/**
 * Instantiate a MerkleBlock from a Buffer, JSON object, or Object with
 * the properties of the Block
 *
 * @param {*} - A Buffer, JSON string, or Object representing a MerkleBlock
 * @returns {MerkleBlock}
 * @constructor
 */
function MerkleBlock(arg) {
  /* jshint maxstatements: 18 */

  if (!(this instanceof MerkleBlock)) {
    return new MerkleBlock(arg);
  }

  var info = {};
  if (BufferUtil.isBuffer(arg)) {
    info = MerkleBlock._fromBufferReader(BufferReader(arg));
  } else if (_.isObject(arg)) {
    var header;
    if(arg.header instanceof BlockHeader) {
      header = arg.header;
    } else {
      header = BlockHeader.fromObject(arg.header);
    }
    info = {
      /**
       * @name MerkleBlock#header
       * @type {BlockHeader}
       */
      header: header,
      /**
       * @name MerkleBlock#numTransactions
       * @type {Number}
       */
      numTransactions: arg.numTransactions,
      /**
       * @name MerkleBlock#hashes
       * @type {String[]}
       */
      hashes: arg.hashes,
      /**
       * @name MerkleBlock#flags
       * @type {Number[]}
       */
      flags: arg.flags
    };
  } else {
    throw new TypeError('Unrecognized argument for MerkleBlock');
  }
  _.extend(this,info);
  this._flagBitsUsed = 0;
  this._hashesUsed = 0;
  return this;
}

/**
 * @param {Buffer} - MerkleBlock data in a Buffer object
 * @returns {MerkleBlock} - A MerkleBlock object
 */
MerkleBlock.fromBuffer = function fromBuffer(buf) {
  return MerkleBlock.fromBufferReader(BufferReader(buf));
};

/**
 * @param {BufferReader} - MerkleBlock data in a BufferReader object
 * @returns {MerkleBlock} - A MerkleBlock object
 */
MerkleBlock.fromBufferReader = function fromBufferReader(br) {
  return new MerkleBlock(MerkleBlock._fromBufferReader(br));
};

/**
 * @returns {Buffer} - A buffer of the block
 */
MerkleBlock.prototype.toBuffer = function toBuffer() {
  return this.toBufferWriter().concat();
};

/**
 * @param {BufferWriter} - An existing instance of BufferWriter
 * @returns {BufferWriter} - An instance of BufferWriter representation of the MerkleBlock
 */
MerkleBlock.prototype.toBufferWriter = function toBufferWriter(bw) {
  if (!bw) {
    bw = new BufferWriter();
  }
  bw.write(this.header.toBuffer());
  bw.writeUInt32LE(this.numTransactions);
  bw.writeVarintNum(this.hashes.length);
  for (var i = 0; i < this.hashes.length; i++) {
    bw.write(new Buffer(this.hashes[i], 'hex'));
  }
  bw.writeVarintNum(this.flags.length);
  for (i = 0; i < this.flags.length; i++) {
    bw.writeUInt8(this.flags[i]);
  }
  return bw;
};

/**
 * @returns {Object} - A plain object with the MerkleBlock properties
 */
MerkleBlock.prototype.toObject = MerkleBlock.prototype.toJSON = function toObject() {
  return {
    header: this.header.toObject(),
    numTransactions: this.numTransactions,
    hashes: this.hashes,
    flags: this.flags
  };
};

/**
 * Verify that the MerkleBlock is valid
 * @returns {Boolean} - True/False whether this MerkleBlock is Valid
 */
MerkleBlock.prototype.validMerkleTree = function validMerkleTree() {
  $.checkState(_.isArray(this.flags), 'MerkleBlock flags is not an array');
  $.checkState(_.isArray(this.hashes), 'MerkleBlock hashes is not an array');

  // Can't have more hashes than numTransactions
  if(this.hashes.length > this.numTransactions) {
    return false;
  }

  // Can't have more flag bits than num hashes
  if(this.flags.length * 8 < this.hashes.length) {
    return false;
  }

  var height = this._calcTreeHeight();
  var opts = { hashesUsed: 0, flagBitsUsed: 0 };
  var root = this._traverseMerkleTree(height, 0, opts);
  if(opts.hashesUsed !== this.hashes.length) {
    return false;
  }
  return BufferUtil.equals(root, this.header.merkleRoot);
};

/**
 * Traverse a the tree in this MerkleBlock, validating it along the way
 * Modeled after Bitcoin Core merkleblock.cpp TraverseAndExtract()
 * @param {Number} - depth - Current height
 * @param {Number} - pos - Current position in the tree
 * @param {Object} - opts - Object with values that need to be mutated throughout the traversal
 * @param {Number} - opts.flagBitsUsed - Number of flag bits used, should start at 0
 * @param {Number} - opts.hashesUsed - Number of hashes used, should start at 0
 * @param {Array} - opts.txs - Will finish populated by transactions found during traversal
 * @returns {Buffer|null} - Buffer containing the Merkle Hash for that height
 * @private
 */
MerkleBlock.prototype._traverseMerkleTree = function traverseMerkleTree(depth, pos, opts) {
  /* jshint maxcomplexity:  12*/
  /* jshint maxstatements: 20 */

  opts = opts || {};
  opts.txs = opts.txs || [];
  opts.flagBitsUsed = opts.flagBitsUsed || 0;
  opts.hashesUsed = opts.hashesUsed || 0;

  if(opts.flagBitsUsed > this.flags.length * 8) {
    return null;
  }
  var isParentOfMatch = (this.flags[opts.flagBitsUsed >> 3] >>> (opts.flagBitsUsed++ & 7)) & 1;
  if(depth === 0 || !isParentOfMatch) {
    if(opts.hashesUsed >= this.hashes.length) {
      return null;
    }
    var hash = this.hashes[opts.hashesUsed++];
    if(depth === 0 && isParentOfMatch) {
      opts.txs.push(hash);
    }
    return new Buffer(hash, 'hex');
  } else {
    var left = this._traverseMerkleTree(depth-1, pos*2, opts);
    var right = left;
    if(pos*2+1 < this._calcTreeWidth(depth-1)) {
      right = this._traverseMerkleTree(depth-1, pos*2+1, opts);
    }
    return Hash.sha256sha256(new Buffer.concat([left, right]));
  }
};

/** Calculates the width of a merkle tree at a given height.
 *  Modeled after Bitcoin Core merkleblock.h CalcTreeWidth()
 * @param {Number} - Height at which we want the tree width
 * @returns {Number} - Width of the tree at a given height
 * @private
 */
MerkleBlock.prototype._calcTreeWidth = function calcTreeWidth(height) {
  return (this.numTransactions + (1 << height) - 1) >> height;
};

/** Calculates the height of the merkle tree in this MerkleBlock
 * @param {Number} - Height at which we want the tree width
 * @returns {Number} - Height of the merkle tree in this MerkleBlock
 * @private
 */
MerkleBlock.prototype._calcTreeHeight = function calcTreeHeight() {
  var height = 0;
  while (this._calcTreeWidth(height) > 1) {
    height++;
  }
  return height;
};

/**
 * @param {Transaction|String} - Transaction or Transaction ID Hash
 * @returns {Boolean} - return true/false if this MerkleBlock has the TX or not
 * @private
 */
MerkleBlock.prototype.hasTransaction = function hasTransaction(tx) {
  $.checkArgument(!_.isUndefined(tx), 'tx cannot be undefined');
  $.checkArgument(tx instanceof Transaction || typeof tx === 'string',
      'Invalid tx given, tx must be a "string" or "Transaction"');

  var hash = tx;
  if(tx instanceof Transaction) {
    // We need to reverse the id hash for the lookup
    hash = BufferUtil.reverse(new Buffer(tx.id, 'hex')).toString('hex');
  }

  var txs = [];
  var height = this._calcTreeHeight();
  this._traverseMerkleTree(height, 0, { txs: txs });
  return txs.indexOf(hash) !== -1;
};

/**
 * @param {Buffer} - MerkleBlock data
 * @returns {Object} - An Object representing merkleblock data
 * @private
 */
MerkleBlock._fromBufferReader = function _fromBufferReader(br) {
  $.checkState(!br.finished(), 'No merkleblock data received');
  var info = {};
  info.header = BlockHeader.fromBufferReader(br);
  info.numTransactions = br.readUInt32LE();
  var numHashes = br.readVarintNum();
  info.hashes = [];
  for (var i = 0; i < numHashes; i++) {
    info.hashes.push(br.read(32).toString('hex'));
  }
  var numFlags = br.readVarintNum();
  info.flags = [];
  for (i = 0; i < numFlags; i++) {
    info.flags.push(br.readUInt8());
  }
  return info;
};

/**
 * @param {Object} - A plain JavaScript object
 * @returns {Block} - An instance of block
 */
MerkleBlock.fromObject = function fromObject(obj) {
  return new MerkleBlock(obj);
};

module.exports = MerkleBlock;

}).call(this,require("buffer").Buffer)
},{"../crypto/hash":8,"../encoding/bufferreader":14,"../encoding/bufferwriter":15,"../transaction":32,"../util/buffer":46,"../util/js":47,"../util/preconditions":48,"./blockheader":3,"buffer":95,"lodash":142}],6:[function(require,module,exports){
(function (Buffer){
'use strict';

var BN = require('bn.js');
var $ = require('../util/preconditions');
var _ = require('lodash');

var reversebuf = function(buf) {
  var buf2 = new Buffer(buf.length);
  for (var i = 0; i < buf.length; i++) {
    buf2[i] = buf[buf.length - 1 - i];
  }
  return buf2;
};

BN.Zero = new BN(0);
BN.One = new BN(1);
BN.Minus1 = new BN(-1);

BN.fromNumber = function(n) {
  $.checkArgument(_.isNumber(n));
  return new BN(n);
};

BN.fromString = function(str, base) {
  $.checkArgument(_.isString(str));
  return new BN(str, base);
};

BN.fromBuffer = function(buf, opts) {
  if (typeof opts !== 'undefined' && opts.endian === 'little') {
    buf = reversebuf(buf);
  }
  var hex = buf.toString('hex');
  var bn = new BN(hex, 16);
  return bn;
};

/**
 * Instantiate a BigNumber from a "signed magnitude buffer"
 * (a buffer where the most significant bit represents the sign (0 = positive, -1 = negative))
 */
BN.fromSM = function(buf, opts) {
  var ret;
  if (buf.length === 0) {
    return BN.fromBuffer(new Buffer([0]));
  }

  var endian = 'big';
  if (opts) {
    endian = opts.endian;
  }
  if (endian === 'little') {
    buf = reversebuf(buf);
  }

  if (buf[0] & 0x80) {
    buf[0] = buf[0] & 0x7f;
    ret = BN.fromBuffer(buf);
    ret.neg().copy(ret);
  } else {
    ret = BN.fromBuffer(buf);
  }
  return ret;
};


BN.prototype.toNumber = function() {
  return parseInt(this.toString(10), 10);
};

BN.prototype.toBuffer = function(opts) {
  var buf, hex;
  if (opts && opts.size) {
    hex = this.toString(16, 2);
    var natlen = hex.length / 2;
    buf = new Buffer(hex, 'hex');

    if (natlen === opts.size) {
      buf = buf;
    } else if (natlen > opts.size) {
      buf = BN.trim(buf, natlen);
    } else if (natlen < opts.size) {
      buf = BN.pad(buf, natlen, opts.size);
    }
  } else {
    hex = this.toString(16, 2);
    buf = new Buffer(hex, 'hex');
  }

  if (typeof opts !== 'undefined' && opts.endian === 'little') {
    buf = reversebuf(buf);
  }

  return buf;
};

BN.prototype.toSMBigEndian = function() {
  var buf;
  if (this.cmp(BN.Zero) === -1) {
    buf = this.neg().toBuffer();
    if (buf[0] & 0x80) {
      buf = Buffer.concat([new Buffer([0x80]), buf]);
    } else {
      buf[0] = buf[0] | 0x80;
    }
  } else {
    buf = this.toBuffer();
    if (buf[0] & 0x80) {
      buf = Buffer.concat([new Buffer([0x00]), buf]);
    }
  }

  if (buf.length === 1 & buf[0] === 0) {
    buf = new Buffer([]);
  }
  return buf;
};

BN.prototype.toSM = function(opts) {
  var endian = opts ? opts.endian : 'big';
  var buf = this.toSMBigEndian();

  if (endian === 'little') {
    buf = reversebuf(buf);
  }
  return buf;
};

/**
 * Create a BN from a "ScriptNum":
 * This is analogous to the constructor for CScriptNum in bitcoind. Many ops in
 * bitcoind's script interpreter use CScriptNum, which is not really a proper
 * bignum. Instead, an error is thrown if trying to input a number bigger than
 * 4 bytes. We copy that behavior here. A third argument, `size`, is provided to
 * extend the hard limit of 4 bytes, as some usages require more than 4 bytes.
 */
BN.fromScriptNumBuffer = function(buf, fRequireMinimal, size) {
  var nMaxNumSize = size || 4;
  $.checkArgument(buf.length <= nMaxNumSize, new Error('script number overflow'));
  if (fRequireMinimal && buf.length > 0) {
    // Check that the number is encoded with the minimum possible
    // number of bytes.
    //
    // If the most-significant-byte - excluding the sign bit - is zero
    // then we're not minimal. Note how this test also rejects the
    // negative-zero encoding, 0x80.
    if ((buf[buf.length - 1] & 0x7f) === 0) {
      // One exception: if there's more than one byte and the most
      // significant bit of the second-most-significant-byte is set
      // it would conflict with the sign bit. An example of this case
      // is +-255, which encode to 0xff00 and 0xff80 respectively.
      // (big-endian).
      if (buf.length <= 1 || (buf[buf.length - 2] & 0x80) === 0) {
        throw new Error('non-minimally encoded script number');
      }
    }
  }
  return BN.fromSM(buf, {
    endian: 'little'
  });
};

/**
 * The corollary to the above, with the notable exception that we do not throw
 * an error if the output is larger than four bytes. (Which can happen if
 * performing a numerical operation that results in an overflow to more than 4
 * bytes).
 */
BN.prototype.toScriptNumBuffer = function() {
  return this.toSM({
    endian: 'little'
  });
};

BN.prototype.gt = function(b) {
  return this.cmp(b) > 0;
};

BN.prototype.gte = function(b) {
  return this.cmp(b) >= 0;
};

BN.prototype.lt = function(b) {
  return this.cmp(b) < 0;
};

BN.trim = function(buf, natlen) {
  return buf.slice(natlen - buf.length, buf.length);
};

BN.pad = function(buf, natlen, size) {
  var rbuf = new Buffer(size);
  for (var i = 0; i < buf.length; i++) {
    rbuf[rbuf.length - 1 - i] = buf[buf.length - 1 - i];
  }
  for (i = 0; i < size - natlen; i++) {
    rbuf[i] = 0;
  }
  return rbuf;
};

module.exports = BN;

}).call(this,require("buffer").Buffer)
},{"../util/preconditions":48,"bn.js":65,"buffer":95,"lodash":142}],7:[function(require,module,exports){
(function (Buffer){
'use strict';

var BN = require('./bn');
var Point = require('./point');
var Signature = require('./signature');
var PublicKey = require('../publickey');
var Random = require('./random');
var Hash = require('./hash');
var BufferUtil = require('../util/buffer');
var _ = require('lodash');
var $ = require('../util/preconditions');

var ECDSA = function ECDSA(obj) {
  if (!(this instanceof ECDSA)) {
    return new ECDSA(obj);
  }
  if (obj) {
    this.set(obj);
  }
};

/* jshint maxcomplexity: 9 */
ECDSA.prototype.set = function(obj) {
  this.hashbuf = obj.hashbuf || this.hashbuf;
  this.endian = obj.endian || this.endian; //the endianness of hashbuf
  this.privkey = obj.privkey || this.privkey;
  this.pubkey = obj.pubkey || (this.privkey ? this.privkey.publicKey : this.pubkey);
  this.sig = obj.sig || this.sig;
  this.k = obj.k || this.k;
  this.verified = obj.verified || this.verified;
  return this;
};

ECDSA.prototype.privkey2pubkey = function() {
  this.pubkey = this.privkey.toPublicKey();
};

ECDSA.prototype.calci = function() {
  for (var i = 0; i < 4; i++) {
    this.sig.i = i;
    var Qprime;
    try {
      Qprime = this.toPublicKey();
    } catch (e) {
      console.error(e);
      continue;
    }

    if (Qprime.point.eq(this.pubkey.point)) {
      this.sig.compressed = this.pubkey.compressed;
      return this;
    }
  }

  this.sig.i = undefined;
  throw new Error('Unable to find valid recovery factor');
};

ECDSA.fromString = function(str) {
  var obj = JSON.parse(str);
  return new ECDSA(obj);
};

ECDSA.prototype.randomK = function() {
  var N = Point.getN();
  var k;
  do {
    k = BN.fromBuffer(Random.getRandomBuffer(32));
  } while (!(k.lt(N) && k.gt(BN.Zero)));
  this.k = k;
  return this;
};


// https://tools.ietf.org/html/rfc6979#section-3.2
ECDSA.prototype.deterministicK = function(badrs) {
  /* jshint maxstatements: 25 */
  // if r or s were invalid when this function was used in signing,
  // we do not want to actually compute r, s here for efficiency, so,
  // we can increment badrs. explained at end of RFC 6979 section 3.2
  if (_.isUndefined(badrs)) {
    badrs = 0;
  }
  var v = new Buffer(32);
  v.fill(0x01);
  var k = new Buffer(32);
  k.fill(0x00);
  var x = this.privkey.bn.toBuffer({
    size: 32
  });
  var hashbuf = this.endian === 'little' ? BufferUtil.reverse(this.hashbuf) : this.hashbuf
  k = Hash.sha256hmac(Buffer.concat([v, new Buffer([0x00]), x, hashbuf]), k);
  v = Hash.sha256hmac(v, k);
  k = Hash.sha256hmac(Buffer.concat([v, new Buffer([0x01]), x, hashbuf]), k);
  v = Hash.sha256hmac(v, k);
  v = Hash.sha256hmac(v, k);
  var T = BN.fromBuffer(v);
  var N = Point.getN();

  // also explained in 3.2, we must ensure T is in the proper range (0, N)
  for (var i = 0; i < badrs || !(T.lt(N) && T.gt(BN.Zero)); i++) {
    k = Hash.sha256hmac(Buffer.concat([v, new Buffer([0x00])]), k);
    v = Hash.sha256hmac(v, k);
    v = Hash.sha256hmac(v, k);
    T = BN.fromBuffer(v);
  }

  this.k = T;
  return this;
};

// Information about public key recovery:
// https://bitcointalk.org/index.php?topic=6430.0
// http://stackoverflow.com/questions/19665491/how-do-i-get-an-ecdsa-public-key-from-just-a-bitcoin-signature-sec1-4-1-6-k
ECDSA.prototype.toPublicKey = function() {
  /* jshint maxstatements: 25 */
  var i = this.sig.i;
  $.checkArgument(i === 0 || i === 1 || i === 2 || i === 3, new Error('i must be equal to 0, 1, 2, or 3'));

  var e = BN.fromBuffer(this.hashbuf);
  var r = this.sig.r;
  var s = this.sig.s;

  // A set LSB signifies that the y-coordinate is odd
  var isYOdd = i & 1;

  // The more significant bit specifies whether we should use the
  // first or second candidate key.
  var isSecondKey = i >> 1;

  var n = Point.getN();
  var G = Point.getG();

  // 1.1 Let x = r + jn
  var x = isSecondKey ? r.add(n) : r;
  var R = Point.fromX(isYOdd, x);

  // 1.4 Check that nR is at infinity
  var nR = R.mul(n);

  if (!nR.isInfinity()) {
    throw new Error('nR is not a valid curve point');
  }

  // Compute -e from e
  var eNeg = e.neg().mod(n);

  // 1.6.1 Compute Q = r^-1 (sR - eG)
  // Q = r^-1 (sR + -eG)
  var rInv = r.invm(n);

  //var Q = R.multiplyTwo(s, G, eNeg).mul(rInv);
  var Q = R.mul(s).add(G.mul(eNeg)).mul(rInv);

  var pubkey = PublicKey.fromPoint(Q, this.sig.compressed);

  return pubkey;
};

ECDSA.prototype.sigError = function() {
  /* jshint maxstatements: 25 */
  if (!BufferUtil.isBuffer(this.hashbuf) || this.hashbuf.length !== 32) {
    return 'hashbuf must be a 32 byte buffer';
  }

  var r = this.sig.r;
  var s = this.sig.s;
  if (!(r.gt(BN.Zero) && r.lt(Point.getN())) || !(s.gt(BN.Zero) && s.lt(Point.getN()))) {
    return 'r and s not in range';
  }

  var e = BN.fromBuffer(this.hashbuf, this.endian ? {
    endian: this.endian
  } : undefined);
  var n = Point.getN();
  var sinv = s.invm(n);
  var u1 = sinv.mul(e).mod(n);
  var u2 = sinv.mul(r).mod(n);

  var p = Point.getG().mulAdd(u1, this.pubkey.point, u2);
  if (p.isInfinity()) {
    return 'p is infinity';
  }

  if (p.getX().mod(n).cmp(r) !== 0) {
    return 'Invalid signature';
  } else {
    return false;
  }
};

ECDSA.toLowS = function(s) {
  //enforce low s
  //see BIP 62, "low S values in signatures"
  if (s.gt(BN.fromBuffer(new Buffer('7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0', 'hex')))) {
    s = Point.getN().sub(s);
  }
  return s;
};

ECDSA.prototype._findSignature = function(d, e) {
  var N = Point.getN();
  var G = Point.getG();
  // try different values of k until r, s are valid
  var badrs = 0;
  var k, Q, r, s;
  do {
    if (!this.k || badrs > 0) {
      this.deterministicK(badrs);
    }
    badrs++;
    k = this.k;
    Q = G.mul(k);
    r = Q.x.mod(N);
    s = k.invm(N).mul(e.add(d.mul(r))).mod(N);
  } while (r.cmp(BN.Zero) <= 0 || s.cmp(BN.Zero) <= 0);

  s = ECDSA.toLowS(s);
  return {
    s: s,
    r: r
  };

};

ECDSA.prototype.sign = function() {
  var hashbuf = this.hashbuf;
  var privkey = this.privkey;
  var d = privkey.bn;

  $.checkState(hashbuf && privkey && d, new Error('invalid parameters'));
  $.checkState(BufferUtil.isBuffer(hashbuf) && hashbuf.length === 32, new Error('hashbuf must be a 32 byte buffer'));

  var e = BN.fromBuffer(hashbuf, this.endian ? {
    endian: this.endian
  } : undefined);

  var obj = this._findSignature(d, e);
  obj.compressed = this.pubkey.compressed;

  this.sig = new Signature(obj);
  return this;
};

ECDSA.prototype.signRandomK = function() {
  this.randomK();
  return this.sign();
};

ECDSA.prototype.toString = function() {
  var obj = {};
  if (this.hashbuf) {
    obj.hashbuf = this.hashbuf.toString('hex');
  }
  if (this.privkey) {
    obj.privkey = this.privkey.toString();
  }
  if (this.pubkey) {
    obj.pubkey = this.pubkey.toString();
  }
  if (this.sig) {
    obj.sig = this.sig.toString();
  }
  if (this.k) {
    obj.k = this.k.toString();
  }
  return JSON.stringify(obj);
};

ECDSA.prototype.verify = function() {
  if (!this.sigError()) {
    this.verified = true;
  } else {
    this.verified = false;
  }
  return this;
};

ECDSA.sign = function(hashbuf, privkey, endian) {
  return ECDSA().set({
    hashbuf: hashbuf,
    endian: endian,
    privkey: privkey
  }).sign().sig;
};

ECDSA.verify = function(hashbuf, sig, pubkey, endian) {
  return ECDSA().set({
    hashbuf: hashbuf,
    endian: endian,
    sig: sig,
    pubkey: pubkey
  }).verify().verified;
};

module.exports = ECDSA;

}).call(this,require("buffer").Buffer)
},{"../publickey":28,"../util/buffer":46,"../util/preconditions":48,"./bn":6,"./hash":8,"./point":9,"./random":10,"./signature":11,"buffer":95,"lodash":142}],8:[function(require,module,exports){
(function (Buffer){
'use strict';

var sha512 = require('sha512');
var x11hash = require('x11-hash-js');
var crypto = require('crypto');
var BufferUtil = require('../util/buffer');
var $ = require('../util/preconditions');

var Hash = module.exports;

Hash.sha1 = function(buf) {
  $.checkArgument(BufferUtil.isBuffer(buf));
  return crypto.createHash('sha1').update(buf).digest();
};

Hash.sha1.blocksize = 512;

Hash.sha256 = function(buf) {
  $.checkArgument(BufferUtil.isBuffer(buf));
  return crypto.createHash('sha256').update(buf).digest();
};

Hash.sha256.blocksize = 512;

Hash.sha256sha256 = function(buf) {
  $.checkArgument(BufferUtil.isBuffer(buf));
  return Hash.sha256(Hash.sha256(buf));
};

Hash.x11 = function(buf) {
  $.checkArgument(BufferUtil.isBuffer(buf));
  return new Buffer(x11hash.digest(buf, 1, 2));
};

Hash.ripemd160 = function(buf) {
  $.checkArgument(BufferUtil.isBuffer(buf));
  return crypto.createHash('ripemd160').update(buf).digest();
};

Hash.sha256ripemd160 = function(buf) {
  $.checkArgument(BufferUtil.isBuffer(buf));
  return Hash.ripemd160(Hash.sha256(buf));
};

Hash.sha512 = function(buf) {
  $.checkArgument(BufferUtil.isBuffer(buf));
  return crypto.createHash('sha512').update(buf).digest();
};

Hash.sha512.blocksize = 1024;

Hash.hmac = function(hashf, data, key) {
  //http://en.wikipedia.org/wiki/Hash-based_message_authentication_code
  //http://tools.ietf.org/html/rfc4868#section-2
  $.checkArgument(BufferUtil.isBuffer(data));
  $.checkArgument(BufferUtil.isBuffer(key));
  $.checkArgument(hashf.blocksize);

  var blocksize = hashf.blocksize / 8;

  if (key.length > blocksize) {
    key = hashf(key);
  } else if (key < blocksize) {
    var fill = new Buffer(blocksize);
    fill.fill(0);
    key.copy(fill);
    key = fill;
  }

  var o_key = new Buffer(blocksize);
  o_key.fill(0x5c);

  var i_key = new Buffer(blocksize);
  i_key.fill(0x36);

  var o_key_pad = new Buffer(blocksize);
  var i_key_pad = new Buffer(blocksize);
  for (var i = 0; i < blocksize; i++) {
    o_key_pad[i] = o_key[i] ^ key[i];
    i_key_pad[i] = i_key[i] ^ key[i];
  }

  return hashf(Buffer.concat([o_key_pad, hashf(Buffer.concat([i_key_pad, data]))]));
};

Hash.sha256hmac = function(data, key) {
  return Hash.hmac(Hash.sha256, data, key);
};

Hash.sha512hmac = function(data, key) {
  return Hash.hmac(Hash.sha512, data, key);
};

}).call(this,require("buffer").Buffer)
},{"../util/buffer":46,"../util/preconditions":48,"buffer":95,"crypto":103,"sha512":185,"x11-hash-js":196}],9:[function(require,module,exports){
(function (Buffer){
'use strict';

var BN = require('./bn');
var BufferUtil = require('../util/buffer');
var ec = require('elliptic').curves.secp256k1;
var ecPoint = ec.curve.point.bind(ec.curve);
var ecPointFromX = ec.curve.pointFromX.bind(ec.curve);

/**
 *
 * Instantiate a valid secp256k1 Point from the X and Y coordinates.
 *
 * @param {BN|String} x - The X coordinate
 * @param {BN|String} y - The Y coordinate
 * @link https://github.com/indutny/elliptic
 * @augments elliptic.curve.point
 * @throws {Error} A validation error if exists
 * @returns {Point} An instance of Point
 * @constructor
 */
var Point = function Point(x, y, isRed) {
  var point = ecPoint(x, y, isRed);
  point.validate();
  return point;
};

Point.prototype = Object.getPrototypeOf(ec.curve.point());

/**
 *
 * Instantiate a valid secp256k1 Point from only the X coordinate
 *
 * @param {boolean} odd - If the Y coordinate is odd
 * @param {BN|String} x - The X coordinate
 * @throws {Error} A validation error if exists
 * @returns {Point} An instance of Point
 */
Point.fromX = function fromX(odd, x){
  var point = ecPointFromX(odd, x);
  point.validate();
  return point;
};

/**
 *
 * Will return a secp256k1 ECDSA base point.
 *
 * @link https://en.bitcoin.it/wiki/Secp256k1
 * @returns {Point} An instance of the base point.
 */
Point.getG = function getG() {
  return ec.curve.g;
};

/**
 *
 * Will return the max of range of valid private keys as governed by the secp256k1 ECDSA standard.
 *
 * @link https://en.bitcoin.it/wiki/Private_key#Range_of_valid_ECDSA_private_keys
 * @returns {BN} A BN instance of the number of points on the curve
 */
Point.getN = function getN() {
  return new BN(ec.curve.n.toArray());
};

Point.prototype._getX = Point.prototype.getX;

/**
 *
 * Will return the X coordinate of the Point
 *
 * @returns {BN} A BN instance of the X coordinate
 */
Point.prototype.getX = function getX() {
  return new BN(this._getX().toArray());
};

Point.prototype._getY = Point.prototype.getY;

/**
 *
 * Will return the Y coordinate of the Point
 *
 * @returns {BN} A BN instance of the Y coordinate
 */
Point.prototype.getY = function getY() {
  return new BN(this._getY().toArray());
};

/**
 *
 * Will determine if the point is valid
 *
 * @link https://www.iacr.org/archive/pkc2003/25670211/25670211.pdf
 * @param {Point} An instance of Point
 * @throws {Error} A validation error if exists
 * @returns {Point} An instance of the same Point
 */
Point.prototype.validate = function validate() {

  if (this.isInfinity()){
    throw new Error('Point cannot be equal to Infinity');
  }

  if (this.getX().cmp(BN.Zero) === 0 || this.getY().cmp(BN.Zero) === 0){
    throw new Error('Invalid x,y value for curve, cannot equal 0.');
  }

  var p2 = ecPointFromX(this.getY().isOdd(), this.getX());

  if (p2.y.cmp(this.y) !== 0) {
    throw new Error('Invalid y value for curve.');
  }

  var xValidRange = (this.getX().gt(BN.Minus1) && this.getX().lt(Point.getN()));
  var yValidRange = (this.getY().gt(BN.Minus1) && this.getY().lt(Point.getN()));

  if ( !xValidRange || !yValidRange ) {
    throw new Error('Point does not lie on the curve');
  }

  //todo: needs test case
  if (!(this.mul(Point.getN()).isInfinity())) {
    throw new Error('Point times N must be infinity');
  }

  return this;

};

Point.pointToCompressed = function pointToCompressed(point) {
  var xbuf = point.getX().toBuffer({size: 32});
  var ybuf = point.getY().toBuffer({size: 32});

  var prefix;
  var odd = ybuf[ybuf.length - 1] % 2;
  if (odd) {
    prefix = new Buffer([0x03]);
  } else {
    prefix = new Buffer([0x02]);
  }
  return BufferUtil.concat([prefix, xbuf]);
};

module.exports = Point;

}).call(this,require("buffer").Buffer)
},{"../util/buffer":46,"./bn":6,"buffer":95,"elliptic":114}],10:[function(require,module,exports){
(function (process,Buffer){
'use strict';

function Random() {
}

/* secure random bytes that sometimes throws an error due to lack of entropy */
Random.getRandomBuffer = function(size) {
  if (process.browser)
    return Random.getRandomBufferBrowser(size);
  else
    return Random.getRandomBufferNode(size);
};

Random.getRandomBufferNode = function(size) {
  var crypto = require('crypto');
  return crypto.randomBytes(size);
};

Random.getRandomBufferBrowser = function(size) {
  if (!window.crypto && !window.msCrypto)
    throw new Error('window.crypto not available');

  if (window.crypto && window.crypto.getRandomValues)
    var crypto = window.crypto;
  else if (window.msCrypto && window.msCrypto.getRandomValues) //internet explorer
    var crypto = window.msCrypto;
  else
    throw new Error('window.crypto.getRandomValues not available');

  var bbuf = new Uint8Array(size);
  crypto.getRandomValues(bbuf);
  var buf = new Buffer(bbuf);

  return buf;
};

/* insecure random bytes, but it never fails */
Random.getPseudoRandomBuffer = function(size) {
  var b32 = 0x100000000;
  var b = new Buffer(size);
  var r;

  for (var i = 0; i <= size; i++) {
    var j = Math.floor(i / 4);
    var k = i - j * 4;
    if (k === 0) {
      r = Math.random() * b32;
      b[i] = r & 0xff;
    } else {
      b[i] = (r = r >>> 8) & 0xff;
    }
  }

  return b;
};

module.exports = Random;

}).call(this,require('_process'),require("buffer").Buffer)
},{"_process":152,"buffer":95,"crypto":103}],11:[function(require,module,exports){
(function (Buffer){
'use strict';

var BN = require('./bn');
var _ = require('lodash');
var $ = require('../util/preconditions');
var BufferUtil = require('../util/buffer');
var JSUtil = require('../util/js');

var Signature = function Signature(r, s) {
  if (!(this instanceof Signature)) {
    return new Signature(r, s);
  }
  if (r instanceof BN) {
    this.set({
      r: r,
      s: s
    });
  } else if (r) {
    var obj = r;
    this.set(obj);
  }
};

/* jshint maxcomplexity: 7 */
Signature.prototype.set = function(obj) {
  this.r = obj.r || this.r || undefined;
  this.s = obj.s || this.s || undefined;
  this.i = typeof obj.i !== 'undefined' ? obj.i : this.i; //public key recovery parameter in range [0, 3]
  this.compressed = typeof obj.compressed !== 'undefined' ?
    obj.compressed : this.compressed; //whether the recovered pubkey is compressed
  this.nhashtype = obj.nhashtype || this.nhashtype || undefined;
  return this;
};

Signature.fromCompact = function(buf) {
  $.checkArgument(BufferUtil.isBuffer(buf), 'Argument is expected to be a Buffer');

  var sig = new Signature();

  var compressed = true;
  var i = buf.slice(0, 1)[0] - 27 - 4;
  if (i < 0) {
    compressed = false;
    i = i + 4;
  }

  var b2 = buf.slice(1, 33);
  var b3 = buf.slice(33, 65);

  $.checkArgument(i === 0 || i === 1 || i === 2 || i === 3, new Error('i must be 0, 1, 2, or 3'));
  $.checkArgument(b2.length === 32, new Error('r must be 32 bytes'));
  $.checkArgument(b3.length === 32, new Error('s must be 32 bytes'));

  sig.compressed = compressed;
  sig.i = i;
  sig.r = BN.fromBuffer(b2);
  sig.s = BN.fromBuffer(b3);

  return sig;
};

Signature.fromDER = Signature.fromBuffer = function(buf, strict) {
  var obj = Signature.parseDER(buf, strict);
  var sig = new Signature();

  sig.r = obj.r;
  sig.s = obj.s;

  return sig;
};

// The format used in a tx
Signature.fromTxFormat = function(buf) {
  var nhashtype = buf.readUInt8(buf.length - 1);
  var derbuf = buf.slice(0, buf.length - 1);
  var sig = new Signature.fromDER(derbuf, false);
  sig.nhashtype = nhashtype;
  return sig;
};

Signature.fromString = function(str) {
  var buf = new Buffer(str, 'hex');
  return Signature.fromDER(buf);
};


/**
 * In order to mimic the non-strict DER encoding of OpenSSL, set strict = false.
 */
Signature.parseDER = function(buf, strict) {
  $.checkArgument(BufferUtil.isBuffer(buf), new Error('DER formatted signature should be a buffer'));
  if (_.isUndefined(strict)) {
    strict = true;
  }

  var header = buf[0];
  $.checkArgument(header === 0x30, new Error('Header byte should be 0x30'));

  var length = buf[1];
  var buflength = buf.slice(2).length;
  $.checkArgument(!strict || length === buflength, new Error('Length byte should length of what follows'));

  length = length < buflength ? length : buflength;

  var rheader = buf[2 + 0];
  $.checkArgument(rheader === 0x02, new Error('Integer byte for r should be 0x02'));

  var rlength = buf[2 + 1];
  var rbuf = buf.slice(2 + 2, 2 + 2 + rlength);
  var r = BN.fromBuffer(rbuf);
  var rneg = buf[2 + 1 + 1] === 0x00 ? true : false;
  $.checkArgument(rlength === rbuf.length, new Error('Length of r incorrect'));

  var sheader = buf[2 + 2 + rlength + 0];
  $.checkArgument(sheader === 0x02, new Error('Integer byte for s should be 0x02'));

  var slength = buf[2 + 2 + rlength + 1];
  var sbuf = buf.slice(2 + 2 + rlength + 2, 2 + 2 + rlength + 2 + slength);
  var s = BN.fromBuffer(sbuf);
  var sneg = buf[2 + 2 + rlength + 2 + 2] === 0x00 ? true : false;
  $.checkArgument(slength === sbuf.length, new Error('Length of s incorrect'));

  var sumlength = 2 + 2 + rlength + 2 + slength;
  $.checkArgument(length === sumlength - 2, new Error('Length of signature incorrect'));

  var obj = {
    header: header,
    length: length,
    rheader: rheader,
    rlength: rlength,
    rneg: rneg,
    rbuf: rbuf,
    r: r,
    sheader: sheader,
    slength: slength,
    sneg: sneg,
    sbuf: sbuf,
    s: s
  };

  return obj;
};


Signature.prototype.toCompact = function(i, compressed) {
  i = typeof i === 'number' ? i : this.i;
  compressed = typeof compressed === 'boolean' ? compressed : this.compressed;

  if (!(i === 0 || i === 1 || i === 2 || i === 3)) {
    throw new Error('i must be equal to 0, 1, 2, or 3');
  }

  var val = i + 27 + 4;
  if (compressed === false) {
    val = val - 4;
  }
  var b1 = new Buffer([val]);
  var b2 = this.r.toBuffer({
    size: 32
  });
  var b3 = this.s.toBuffer({
    size: 32
  });
  return Buffer.concat([b1, b2, b3]);
};

Signature.prototype.toBuffer = Signature.prototype.toDER = function() {
  var rnbuf = this.r.toBuffer();
  var snbuf = this.s.toBuffer();

  var rneg = rnbuf[0] & 0x80 ? true : false;
  var sneg = snbuf[0] & 0x80 ? true : false;

  var rbuf = rneg ? Buffer.concat([new Buffer([0x00]), rnbuf]) : rnbuf;
  var sbuf = sneg ? Buffer.concat([new Buffer([0x00]), snbuf]) : snbuf;

  var rlength = rbuf.length;
  var slength = sbuf.length;
  var length = 2 + rlength + 2 + slength;
  var rheader = 0x02;
  var sheader = 0x02;
  var header = 0x30;

  var der = Buffer.concat([new Buffer([header, length, rheader, rlength]), rbuf, new Buffer([sheader, slength]), sbuf]);
  return der;
};

Signature.prototype.toString = function() {
  var buf = this.toDER();
  return buf.toString('hex');
};

/**
 * This function is translated from bitcoind's IsDERSignature and is used in
 * the script interpreter.  This "DER" format actually includes an extra byte,
 * the nhashtype, at the end. It is really the tx format, not DER format.
 *
 * A canonical signature exists of: [30] [total len] [02] [len R] [R] [02] [len S] [S] [hashtype]
 * Where R and S are not negative (their first byte has its highest bit not set), and not
 * excessively padded (do not start with a 0 byte, unless an otherwise negative number follows,
 * in which case a single 0 byte is necessary and even required).
 *
 * See https://bitcointalk.org/index.php?topic=8392.msg127623#msg127623
 */
Signature.isTxDER = function(buf) {
  if (buf.length < 9) {
    //  Non-canonical signature: too short
    return false;
  }
  if (buf.length > 73) {
    // Non-canonical signature: too long
    return false;
  }
  if (buf[0] !== 0x30) {
    //  Non-canonical signature: wrong type
    return false;
  }
  if (buf[1] !== buf.length - 3) {
    //  Non-canonical signature: wrong length marker
    return false;
  }
  var nLenR = buf[3];
  if (5 + nLenR >= buf.length) {
    //  Non-canonical signature: S length misplaced
    return false;
  }
  var nLenS = buf[5 + nLenR];
  if ((nLenR + nLenS + 7) !== buf.length) {
    //  Non-canonical signature: R+S length mismatch
    return false;
  }

  var R = buf.slice(4);
  if (buf[4 - 2] !== 0x02) {
    //  Non-canonical signature: R value type mismatch
    return false;
  }
  if (nLenR === 0) {
    //  Non-canonical signature: R length is zero
    return false;
  }
  if (R[0] & 0x80) {
    //  Non-canonical signature: R value negative
    return false;
  }
  if (nLenR > 1 && (R[0] === 0x00) && !(R[1] & 0x80)) {
    //  Non-canonical signature: R value excessively padded
    return false;
  }

  var S = buf.slice(6 + nLenR);
  if (buf[6 + nLenR - 2] !== 0x02) {
    //  Non-canonical signature: S value type mismatch
    return false;
  }
  if (nLenS === 0) {
    //  Non-canonical signature: S length is zero
    return false;
  }
  if (S[0] & 0x80) {
    //  Non-canonical signature: S value negative
    return false;
  }
  if (nLenS > 1 && (S[0] === 0x00) && !(S[1] & 0x80)) {
    //  Non-canonical signature: S value excessively padded
    return false;
  }
  return true;
};

/**
 * Compares to bitcoind's IsLowDERSignature
 * See also ECDSA signature algorithm which enforces this.
 * See also BIP 62, "low S values in signatures"
 */
Signature.prototype.hasLowS = function() {
  if (this.s.lt(new BN(1)) ||
    this.s.gt(new BN('7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0', 'hex'))) {
    return false;
  }
  return true;
};

/**
 * @returns true if the nhashtype is exactly equal to one of the standard options or combinations thereof.
 * Translated from bitcoind's IsDefinedHashtypeSignature
 */
Signature.prototype.hasDefinedHashtype = function() {
  if (!JSUtil.isNaturalNumber(this.nhashtype)) {
    return false;
  }
  // accept with or without Signature.SIGHASH_ANYONECANPAY by ignoring the bit
  var temp = this.nhashtype & ~Signature.SIGHASH_ANYONECANPAY;
  if (temp < Signature.SIGHASH_ALL || temp > Signature.SIGHASH_SINGLE) {
    return false;
  }
  return true;
};

Signature.prototype.toTxFormat = function() {
  var derbuf = this.toDER();
  var buf = new Buffer(1);
  buf.writeUInt8(this.nhashtype, 0);
  return Buffer.concat([derbuf, buf]);
};

Signature.SIGHASH_ALL = 0x01;
Signature.SIGHASH_NONE = 0x02;
Signature.SIGHASH_SINGLE = 0x03;
Signature.SIGHASH_ANYONECANPAY = 0x80;

module.exports = Signature;

}).call(this,require("buffer").Buffer)
},{"../util/buffer":46,"../util/js":47,"../util/preconditions":48,"./bn":6,"buffer":95,"lodash":142}],12:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var bs58 = require('bs58');
var buffer = require('buffer');

var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'.split('');

var Base58 = function Base58(obj) {
  /* jshint maxcomplexity: 8 */
  if (!(this instanceof Base58)) {
    return new Base58(obj);
  }
  if (Buffer.isBuffer(obj)) {
    var buf = obj;
    this.fromBuffer(buf);
  } else if (typeof obj === 'string') {
    var str = obj;
    this.fromString(str);
  } else if (obj) {
    this.set(obj);
  }
};

Base58.validCharacters = function validCharacters(chars) {
  if (buffer.Buffer.isBuffer(chars)) {
    chars = chars.toString();
  }
  return _.all(_.map(chars, function(char) { return _.contains(ALPHABET, char); }));
};

Base58.prototype.set = function(obj) {
  this.buf = obj.buf || this.buf || undefined;
  return this;
};

Base58.encode = function(buf) {
  if (!buffer.Buffer.isBuffer(buf)) {
    throw new Error('Input should be a buffer');
  }
  return bs58.encode(buf);
};

Base58.decode = function(str) {
  if (typeof str !== 'string') {
    throw new Error('Input should be a string');
  }
  return new Buffer(bs58.decode(str));
};

Base58.prototype.fromBuffer = function(buf) {
  this.buf = buf;
  return this;
};

Base58.prototype.fromString = function(str) {
  var buf = Base58.decode(str);
  this.buf = buf;
  return this;
};

Base58.prototype.toBuffer = function() {
  return this.buf;
};

Base58.prototype.toString = function() {
  return Base58.encode(this.buf);
};

module.exports = Base58;

}).call(this,require("buffer").Buffer)
},{"bs58":92,"buffer":95,"lodash":142}],13:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var Base58 = require('./base58');
var buffer = require('buffer');
var sha256sha256 = require('../crypto/hash').sha256sha256;

var Base58Check = function Base58Check(obj) {
  if (!(this instanceof Base58Check))
    return new Base58Check(obj);
  if (Buffer.isBuffer(obj)) {
    var buf = obj;
    this.fromBuffer(buf);
  } else if (typeof obj === 'string') {
    var str = obj;
    this.fromString(str);
  } else if (obj) {
    this.set(obj);
  }
};

Base58Check.prototype.set = function(obj) {
  this.buf = obj.buf || this.buf || undefined;
  return this;
};

Base58Check.validChecksum = function validChecksum(data, checksum) {
  if (_.isString(data)) {
    data = new buffer.Buffer(Base58.decode(data));
  }
  if (_.isString(checksum)) {
    checksum = new buffer.Buffer(Base58.decode(checksum));
  }
  if (!checksum) {
    checksum = data.slice(-4);
    data = data.slice(0, -4);
  }
  return Base58Check.checksum(data).toString('hex') === checksum.toString('hex');
};

Base58Check.decode = function(s) {
  if (typeof s !== 'string')
    throw new Error('Input must be a string');

  var buf = new Buffer(Base58.decode(s));

  if (buf.length < 4)
    throw new Error("Input string too short");

  var data = buf.slice(0, -4);
  var csum = buf.slice(-4);

  var hash = sha256sha256(data);
  var hash4 = hash.slice(0, 4);

  if (csum.toString('hex') !== hash4.toString('hex'))
    throw new Error("Checksum mismatch");

  return data;
};

Base58Check.checksum = function(buffer) {
  return sha256sha256(buffer).slice(0, 4);
};

Base58Check.encode = function(buf) {
  if (!Buffer.isBuffer(buf))
    throw new Error('Input must be a buffer');
  var checkedBuf = new Buffer(buf.length + 4);
  var hash = Base58Check.checksum(buf);
  buf.copy(checkedBuf);
  hash.copy(checkedBuf, buf.length);
  return Base58.encode(checkedBuf);
};

Base58Check.prototype.fromBuffer = function(buf) {
  this.buf = buf;
  return this;
};

Base58Check.prototype.fromString = function(str) {
  var buf = Base58Check.decode(str);
  this.buf = buf;
  return this;
};

Base58Check.prototype.toBuffer = function() {
  return this.buf;
};

Base58Check.prototype.toString = function() {
  return Base58Check.encode(this.buf);
};

module.exports = Base58Check;

}).call(this,require("buffer").Buffer)
},{"../crypto/hash":8,"./base58":12,"buffer":95,"lodash":142}],14:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var $ = require('../util/preconditions');
var BufferUtil = require('../util/buffer');
var BN = require('../crypto/bn');

var BufferReader = function BufferReader(buf) {
  if (!(this instanceof BufferReader)) {
    return new BufferReader(buf);
  }
  if (_.isUndefined(buf)) {
    return;
  }
  if (Buffer.isBuffer(buf)) {
    this.set({
      buf: buf
    });
  } else if (_.isString(buf)) {
    this.set({
      buf: new Buffer(buf, 'hex'),
    });
  } else if (_.isObject(buf)) {
    var obj = buf;
    this.set(obj);
  } else {
    throw new TypeError('Unrecognized argument for BufferReader');
  }
};

BufferReader.prototype.set = function(obj) {
  this.buf = obj.buf || this.buf || undefined;
  this.pos = obj.pos || this.pos || 0;
  return this;
};

BufferReader.prototype.eof = function() {
  return this.pos >= this.buf.length;
};

BufferReader.prototype.finished = BufferReader.prototype.eof;

BufferReader.prototype.read = function(len) {
  $.checkArgument(!_.isUndefined(len), 'Must specify a length');
  var buf = this.buf.slice(this.pos, this.pos + len);
  this.pos = this.pos + len;
  return buf;
};

BufferReader.prototype.readAll = function() {
  var buf = this.buf.slice(this.pos, this.buf.length);
  this.pos = this.buf.length;
  return buf;
};

BufferReader.prototype.readUInt8 = function() {
  var val = this.buf.readUInt8(this.pos);
  this.pos = this.pos + 1;
  return val;
};

BufferReader.prototype.readUInt16BE = function() {
  var val = this.buf.readUInt16BE(this.pos);
  this.pos = this.pos + 2;
  return val;
};

BufferReader.prototype.readUInt16LE = function() {
  var val = this.buf.readUInt16LE(this.pos);
  this.pos = this.pos + 2;
  return val;
};

BufferReader.prototype.readUInt32BE = function() {
  var val = this.buf.readUInt32BE(this.pos);
  this.pos = this.pos + 4;
  return val;
};

BufferReader.prototype.readUInt32LE = function() {
  var val = this.buf.readUInt32LE(this.pos);
  this.pos = this.pos + 4;
  return val;
};

BufferReader.prototype.readUInt64BEBN = function() {
  var buf = this.buf.slice(this.pos, this.pos + 8);
  var bn = BN.fromBuffer(buf);
  this.pos = this.pos + 8;
  return bn;
};

BufferReader.prototype.readUInt64LEBN = function() {
  var second = this.buf.readUInt32LE(this.pos);
  var first = this.buf.readUInt32LE(this.pos + 4);
  var combined = (first * 0x100000000) + second;
  // Instantiating an instance of BN with a number is faster than with an
  // array or string. However, the maximum safe number for a double precision
  // floating point is 2 ^ 52 - 1 (0x1fffffffffffff), thus we can safely use
  // non-floating point numbers less than this amount (52 bits). And in the case
  // that the number is larger, we can instatiate an instance of BN by passing
  // an array from the buffer (slower) and specifying the endianness.
  var bn;
  if (combined <= 0x1fffffffffffff) {
    bn = new BN(combined);
  } else {
    var data = Array.prototype.slice.call(this.buf, this.pos, this.pos + 8);
    bn = new BN(data, 10, 'le');
  }
  this.pos = this.pos + 8;
  return bn;
};

BufferReader.prototype.readVarintNum = function() {
  var first = this.readUInt8();
  switch (first) {
    case 0xFD:
      return this.readUInt16LE();
    case 0xFE:
      return this.readUInt32LE();
    case 0xFF:
      var bn = this.readUInt64LEBN();
      var n = bn.toNumber();
      if (n <= Math.pow(2, 53)) {
        return n;
      } else {
        throw new Error('number too large to retain precision - use readVarintBN');
      }
      break;
    default:
      return first;
  }
};

/**
 * reads a length prepended buffer
 */
BufferReader.prototype.readVarLengthBuffer = function() {
  var len = this.readVarintNum();
  var buf = this.read(len);
  $.checkState(buf.length === len, 'Invalid length while reading varlength buffer. ' +
    'Expected to read: ' + len + ' and read ' + buf.length);
  return buf;
};

BufferReader.prototype.readVarintBuf = function() {
  var first = this.buf.readUInt8(this.pos);
  switch (first) {
    case 0xFD:
      return this.read(1 + 2);
    case 0xFE:
      return this.read(1 + 4);
    case 0xFF:
      return this.read(1 + 8);
    default:
      return this.read(1);
  }
};

BufferReader.prototype.readVarintBN = function() {
  var first = this.readUInt8();
  switch (first) {
    case 0xFD:
      return new BN(this.readUInt16LE());
    case 0xFE:
      return new BN(this.readUInt32LE());
    case 0xFF:
      return this.readUInt64LEBN();
    default:
      return new BN(first);
  }
};

BufferReader.prototype.reverse = function() {
  var buf = new Buffer(this.buf.length);
  for (var i = 0; i < buf.length; i++) {
    buf[i] = this.buf[this.buf.length - 1 - i];
  }
  this.buf = buf;
  return this;
};

BufferReader.prototype.readReverse = function(len) {
  if (_.isUndefined(len)) {
    len = this.buf.length;
  }
  var buf = this.buf.slice(this.pos, this.pos + len);
  this.pos = this.pos + len;
  return BufferUtil.reverse(buf);
};

module.exports = BufferReader;

}).call(this,require("buffer").Buffer)
},{"../crypto/bn":6,"../util/buffer":46,"../util/preconditions":48,"buffer":95,"lodash":142}],15:[function(require,module,exports){
(function (Buffer){
'use strict';

var bufferUtil = require('../util/buffer');
var assert = require('assert');

var BufferWriter = function BufferWriter(obj) {
  if (!(this instanceof BufferWriter))
    return new BufferWriter(obj);
  if (obj)
    this.set(obj);
  else
    this.bufs = [];
};

BufferWriter.prototype.set = function(obj) {
  this.bufs = obj.bufs || this.bufs || [];
  return this;
};

BufferWriter.prototype.toBuffer = function() {
  return this.concat();
};

BufferWriter.prototype.concat = function() {
  return Buffer.concat(this.bufs);
};

BufferWriter.prototype.write = function(buf) {
  assert(bufferUtil.isBuffer(buf));
  this.bufs.push(buf);
  return this;
};

BufferWriter.prototype.writeReverse = function(buf) {
  assert(bufferUtil.isBuffer(buf));
  this.bufs.push(bufferUtil.reverse(buf));
  return this;
};

BufferWriter.prototype.writeUInt8 = function(n) {
  var buf = new Buffer(1);
  buf.writeUInt8(n, 0);
  this.write(buf);
  return this;
};

BufferWriter.prototype.writeUInt16BE = function(n) {
  var buf = new Buffer(2);
  buf.writeUInt16BE(n, 0);
  this.write(buf);
  return this;
};

BufferWriter.prototype.writeUInt16LE = function(n) {
  var buf = new Buffer(2);
  buf.writeUInt16LE(n, 0);
  this.write(buf);
  return this;
};

BufferWriter.prototype.writeUInt32BE = function(n) {
  var buf = new Buffer(4);
  buf.writeUInt32BE(n, 0);
  this.write(buf);
  return this;
};

BufferWriter.prototype.writeInt32LE = function(n) {
  var buf = new Buffer(4);
  buf.writeInt32LE(n, 0);
  this.write(buf);
  return this;
};

BufferWriter.prototype.writeUInt32LE = function(n) {
  var buf = new Buffer(4);
  buf.writeUInt32LE(n, 0);
  this.write(buf);
  return this;
};

BufferWriter.prototype.writeUInt64BEBN = function(bn) {
  var buf = bn.toBuffer({size: 8});
  this.write(buf);
  return this;
};

BufferWriter.prototype.writeUInt64LEBN = function(bn) {
  var buf = bn.toBuffer({size: 8});
  this.writeReverse(buf);
  return this;
};

BufferWriter.prototype.writeVarintNum = function(n) {
  var buf = BufferWriter.varintBufNum(n);
  this.write(buf);
  return this;
};

BufferWriter.prototype.writeVarintBN = function(bn) {
  var buf = BufferWriter.varintBufBN(bn);
  this.write(buf);
  return this;
};

BufferWriter.varintBufNum = function(n) {
  var buf = undefined;
  if (n < 253) {
    buf = new Buffer(1);
    buf.writeUInt8(n, 0);
  } else if (n < 0x10000) {
    buf = new Buffer(1 + 2);
    buf.writeUInt8(253, 0);
    buf.writeUInt16LE(n, 1);
  } else if (n < 0x100000000) {
    buf = new Buffer(1 + 4);
    buf.writeUInt8(254, 0);
    buf.writeUInt32LE(n, 1);
  } else {
    buf = new Buffer(1 + 8);
    buf.writeUInt8(255, 0);
    buf.writeInt32LE(n & -1, 1);
    buf.writeUInt32LE(Math.floor(n / 0x100000000), 5);
  }
  return buf;
};

BufferWriter.varintBufBN = function(bn) {
  var buf = undefined;
  var n = bn.toNumber();
  if (n < 253) {
    buf = new Buffer(1);
    buf.writeUInt8(n, 0);
  } else if (n < 0x10000) {
    buf = new Buffer(1 + 2);
    buf.writeUInt8(253, 0);
    buf.writeUInt16LE(n, 1);
  } else if (n < 0x100000000) {
    buf = new Buffer(1 + 4);
    buf.writeUInt8(254, 0);
    buf.writeUInt32LE(n, 1);
  } else {
    var bw = new BufferWriter();
    bw.writeUInt8(255);
    bw.writeUInt64LEBN(bn);
    var buf = bw.concat();
  }
  return buf;
};

module.exports = BufferWriter;

}).call(this,require("buffer").Buffer)
},{"../util/buffer":46,"assert":63,"buffer":95}],16:[function(require,module,exports){
(function (Buffer){
'use strict';

var BufferWriter = require('./bufferwriter');
var BufferReader = require('./bufferreader');
var BN = require('../crypto/bn');

var Varint = function Varint(buf) {
  if (!(this instanceof Varint))
    return new Varint(buf);
  if (Buffer.isBuffer(buf)) {
    this.buf = buf;
  } else if (typeof buf === 'number') {
    var num = buf;
    this.fromNumber(num);
  } else if (buf instanceof BN) {
    var bn = buf;
    this.fromBN(bn);
  } else if (buf) {
    var obj = buf;
    this.set(obj);
  }
};

Varint.prototype.set = function(obj) {
  this.buf = obj.buf || this.buf;
  return this;
};

Varint.prototype.fromString = function(str) {
  this.set({
    buf: new Buffer(str, 'hex')
  });
  return this;
};

Varint.prototype.toString = function() {
  return this.buf.toString('hex');
};

Varint.prototype.fromBuffer = function(buf) {
  this.buf = buf;
  return this;
};

Varint.prototype.fromBufferReader = function(br) {
  this.buf = br.readVarintBuf();
  return this;
};

Varint.prototype.fromBN = function(bn) {
  this.buf = BufferWriter().writeVarintBN(bn).concat();
  return this;
};

Varint.prototype.fromNumber = function(num) {
  this.buf = BufferWriter().writeVarintNum(num).concat();
  return this;
};

Varint.prototype.toBuffer = function() {
  return this.buf;
};

Varint.prototype.toBN = function() {
  return BufferReader(this.buf).readVarintBN();
};

Varint.prototype.toNumber = function() {
  return BufferReader(this.buf).readVarintNum();
};

module.exports = Varint;

}).call(this,require("buffer").Buffer)
},{"../crypto/bn":6,"./bufferreader":14,"./bufferwriter":15,"buffer":95}],17:[function(require,module,exports){
'use strict';

var _ = require('lodash');

function format(message, args) {
  return message
    .replace('{0}', args[0])
    .replace('{1}', args[1])
    .replace('{2}', args[2]);
}
var traverseNode = function(parent, errorDefinition) {
  var NodeError = function() {
    if (_.isString(errorDefinition.message)) {
      this.message = format(errorDefinition.message, arguments);
    } else if (_.isFunction(errorDefinition.message)) {
      this.message = errorDefinition.message.apply(null, arguments);
    } else {
      throw new Error('Invalid error definition for ' + errorDefinition.name);
    }
    this.stack = this.message + '\n' + (new Error()).stack;
  };
  NodeError.prototype = Object.create(parent.prototype);
  NodeError.prototype.name = parent.prototype.name + errorDefinition.name;
  parent[errorDefinition.name] = NodeError;
  if (errorDefinition.errors) {
    childDefinitions(NodeError, errorDefinition.errors);
  }
  return NodeError;
};

/* jshint latedef: false */
var childDefinitions = function(parent, childDefinitions) {
  _.each(childDefinitions, function(childDefinition) {
    traverseNode(parent, childDefinition);
  });
};
/* jshint latedef: true */

var traverseRoot = function(parent, errorsDefinition) {
  childDefinitions(parent, errorsDefinition);
  return parent;
};


var bitcore = {};
bitcore.Error = function() {
  this.message = 'Internal error';
  this.stack = this.message + '\n' + (new Error()).stack;
};
bitcore.Error.prototype = Object.create(Error.prototype);
bitcore.Error.prototype.name = 'bitcore.Error';


var data = require('./spec');
traverseRoot(bitcore.Error, data);

module.exports = bitcore.Error;

module.exports.extend = function(spec) {
  return traverseNode(bitcore.Error, spec);
};

},{"./spec":18,"lodash":142}],18:[function(require,module,exports){
'use strict';

var docsURL = 'http://bitcore.io/';

module.exports = [{
  name: 'InvalidB58Char',
  message: 'Invalid Base58 character: {0} in {1}'
}, {
  name: 'InvalidB58Checksum',
  message: 'Invalid Base58 checksum for {0}'
}, {
  name: 'InvalidNetwork',
  message: 'Invalid version for network: got {0}'
}, {
  name: 'InvalidState',
  message: 'Invalid state: {0}'
}, {
  name: 'NotImplemented',
  message: 'Function {0} was not implemented yet'
}, {
  name: 'InvalidNetworkArgument',
  message: 'Invalid network: must be "livenet" or "testnet", got {0}'
}, {
  name: 'InvalidArgument',
  message: function() {
    return 'Invalid Argument' + (arguments[0] ? (': ' + arguments[0]) : '') +
      (arguments[1] ? (' Documentation: ' + docsURL + arguments[1]) : '');
  }
}, {
  name: 'AbstractMethodInvoked',
  message: 'Abstract Method Invocation: {0}'
}, {
  name: 'InvalidArgumentType',
  message: function() {
    return 'Invalid Argument for ' + arguments[2] + ', expected ' + arguments[1] + ' but got ' + typeof arguments[0];
  }
}, {
  name: 'Unit',
  message: 'Internal Error on Unit {0}',
  errors: [{
    'name': 'UnknownCode',
    'message': 'Unrecognized unit code: {0}'
  }, {
    'name': 'InvalidRate',
    'message': 'Invalid exchange rate: {0}'
  }]
}, {
  name: 'GovObject',
  message: 'Internal Error on GovObject {0}',
  errors: [{
    name: 'Proposal',
    message: 'Internal Error on Proposal {0}',
    errors: [{
      name: 'invalidDate',
      message: 'Invalid Date'
    }, {
      name: 'invalidDateWindow',
      message: 'Invalid Timespan'
    }, {
      name: 'invalidAddress',
      message: 'Invalid Address'
    }, {
      name: 'invalidPayment',
      message: 'Invalid Payment Amount'
    }, {
      name: 'invalidUrl',
      message: 'Invalid URL'
    }, {
      name: 'invalidName',
      message: 'Invalid Name'
    }]
  }]
}, {
  name: 'Transaction',
  message: 'Internal Error on Transaction {0}',
  errors: [{
    name: 'Input',
    message: 'Internal Error on Input {0}',
    errors: [{
      name: 'MissingScript',
      message: 'Need a script to create an input'
    }, {
      name: 'UnsupportedScript',
      message: 'Unsupported input script type: {0}'
    }, {
      name: 'MissingPreviousOutput',
      message: 'No previous output information.'
    }]
  }, {
    name: 'NeedMoreInfo',
    message: '{0}'
  }, {
    name: 'InvalidSorting',
    message: 'The sorting function provided did not return the change output as one of the array elements'
  }, {
    name: 'InvalidOutputAmountSum',
    message: '{0}'
  }, {
    name: 'MissingSignatures',
    message: 'Some inputs have not been fully signed'
  }, {
    name: 'InvalidIndex',
    message: 'Invalid index: {0} is not between 0, {1}'
  }, {
    name: 'UnableToVerifySignature',
    message: 'Unable to verify signature: {0}'
  }, {
    name: 'DustOutputs',
    message: 'Dust amount detected in one output'
  }, {
    name: 'InvalidSatoshis',
    message: 'Output satoshis are invalid',
  }, {
    name: 'FeeError',
    message: 'Internal Error on Fee {0}',
    errors: [{
      name: 'TooSmall',
      message: 'Fee is too small: {0}',
    }, {
      name: 'TooLarge',
      message: 'Fee is too large: {0}',
    }, {
      name: 'Different',
      message: 'Unspent value is different from specified fee: {0}',
    }]
  }, {
    name: 'ChangeAddressMissing',
    message: 'Change address is missing'
  }, {
    name: 'BlockHeightTooHigh',
    message: 'Block Height can be at most 2^32 -1'
  }, {
    name: 'NLockTimeOutOfRange',
    message: 'Block Height can only be between 0 and 499 999 999'
  }, {
    name: 'LockTimeTooEarly',
    message: 'Lock Time can\'t be earlier than UNIX date 500 000 000'
  }]
}, {
  name: 'Script',
  message: 'Internal Error on Script {0}',
  errors: [{
    name: 'UnrecognizedAddress',
    message: 'Expected argument {0} to be an address'
  }, {
    name: 'CantDeriveAddress',
    message: 'Can\'t derive address associated with script {0}, needs to be p2pkh in, p2pkh out, p2sh in, or p2sh out.'
  }, {
    name: 'InvalidBuffer',
    message: 'Invalid script buffer: can\'t parse valid script from given buffer {0}'
  }]
}, {
  name: 'HDPrivateKey',
  message: 'Internal Error on HDPrivateKey {0}',
  errors: [{
    name: 'InvalidDerivationArgument',
    message: 'Invalid derivation argument {0}, expected string, or number and boolean'
  }, {
    name: 'InvalidEntropyArgument',
    message: 'Invalid entropy: must be an hexa string or binary buffer, got {0}',
    errors: [{
      name: 'TooMuchEntropy',
      message: 'Invalid entropy: more than 512 bits is non standard, got "{0}"'
    }, {
      name: 'NotEnoughEntropy',
      message: 'Invalid entropy: at least 128 bits needed, got "{0}"'
    }]
  }, {
    name: 'InvalidLength',
    message: 'Invalid length for xprivkey string in {0}'
  }, {
    name: 'InvalidPath',
    message: 'Invalid derivation path: {0}'
  }, {
    name: 'UnrecognizedArgument',
    message: 'Invalid argument: creating a HDPrivateKey requires a string, buffer, json or object, got "{0}"'
  }]
}, {
  name: 'HDPublicKey',
  message: 'Internal Error on HDPublicKey {0}',
  errors: [{
    name: 'ArgumentIsPrivateExtended',
    message: 'Argument is an extended private key: {0}'
  }, {
    name: 'InvalidDerivationArgument',
    message: 'Invalid derivation argument: got {0}'
  }, {
    name: 'InvalidLength',
    message: 'Invalid length for xpubkey: got "{0}"'
  }, {
    name: 'InvalidPath',
    message: 'Invalid derivation path, it should look like: "m/1/100", got "{0}"'
  }, {
    name: 'InvalidIndexCantDeriveHardened',
    message: 'Invalid argument: creating a hardened path requires an HDPrivateKey'
  }, {
    name: 'MustSupplyArgument',
    message: 'Must supply an argument to create a HDPublicKey'
  }, {
    name: 'UnrecognizedArgument',
    message: 'Invalid argument for creation, must be string, json, buffer, or object'
  }]
}];

},{}],19:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var $ = require('../util/preconditions');
var buffer = require('buffer');
var compare = Buffer.compare || require('buffer-compare');

var errors = require('../errors');
var BufferUtil = require('../util/buffer');
var JSUtil = require('../util/js');
var BufferReader = require('../encoding/bufferreader');
var BufferWriter = require('../encoding/bufferwriter');

var Address = require('../address');

/**
 * Represents a generic Governance Object
 *
 * @param serialized
 * @returns {*}
 * @constructor
 */
function GovObject(serialized) {
    if (!(this instanceof GovObject)) {
        return new GovObject(serialized);
    }

    if (serialized) {
        if (serialized instanceof GovObject) {
            return GovObject.shallowCopy(serialized);
        } else if (JSUtil.isHexa(serialized)) {
            this.fromString(serialized);
        } else if (BufferUtil.isBuffer(serialized)) {
            this.fromBuffer(serialized);
        } else if (_.isObject(serialized)) {
            this.fromObject(serialized);
        } else {
            throw new errors.InvalidArgument('Must provide an object or string to deserialize a transaction');
        }
    } else {
        this._newGovObject();
    }
}

/**
 * dataHex will output GovObject 'data-hex' value, should be overriden by specific object type
 *
 */
GovObject.prototype.dataHex = function() {

    return null;
};

/**
 * GovObject instantiation method, should be overriden by specific GovObject type
 *
 * @private
 */
GovObject.prototype._newGovObject = function() {

    return null;
};

/**
 * GovObject instantation method from JSON object, should be overridden by specific GovObject type
 *
 * @param arg
 * @returns Casted GovObject
 */
GovObject.prototype.fromObject = function fromObject(arg) {
  var govObject;
  //Allow an arg to be a stringified json
  if(!(_.isObject(arg) || arg instanceof GovObject)){
    try{
      var parsed = JSON.parse(arg);
    }catch(e){
      throw new Error('Must be a valid stringified JSON');
    }
    return this.fromObject(parsed);
  }

  //Even if generic, we still expect to have a minimal number of properties
  var expectedProperties = [
    ['type',"number"]
  ];
  govObject = arg;
  _.each(expectedProperties, function(prop){
    var expectedPropName = prop[0];
    var expectedPropType = prop[1];
    var existProp = govObject.hasOwnProperty(expectedPropName);
    if(!existProp){
      throw new Error('Must be a valid JSON - Property '+expectedPropName+' missing');
    }
    var receivedType = typeof govObject[expectedPropName];
    if(receivedType!==expectedPropType){
      var err_m = 'Must be a valid JSON - Expected property '+expectedPropName+' to be a '+expectedPropType+ ' received:'+receivedType
      throw new Error(err_m);
    }
  });

  switch(govObject.type){
    case 1:
      var proposal = new GovObject.Proposal;
      proposal = proposal.fromObject(govObject);
      return proposal;
      break;
    default:
      throw new Error('Unhandled GovObject type');
  }
  throw new Error('Couldn\'t cast the GovObject');
  return null;
};

/**
 * GovObject instantiation method from hex string
 *
 * @param string
 */
GovObject.prototype.fromString = function(string) {
    this.fromBuffer(new buffer.Buffer(string, 'hex'));
};

/**
 * Retrieve a hexa string that can be used with dashd's CLI interface
 *
 * @param {Object} opts allows to skip certain tests. {@see Transaction#serialize}
 * @return {string}
 */
GovObject.prototype.checkedSerialize = function(opts) {
    var serializationError = this.getSerializationError(opts);
    if (serializationError) {
        throw serializationError;
    }
    return this.uncheckedSerialize();
};

GovObject.prototype.serialize = function(unsafe) {
    if (true === unsafe || unsafe && unsafe.disableAll) {
        return this.uncheckedSerialize();
    } else {
        return this.checkedSerialize(unsafe);
    }
};

GovObject.prototype.uncheckedSerialize = GovObject.prototype.toString = function() {
    return this.toBuffer().toString('hex');
};

GovObject.prototype.inspect = function() {
    return '<GovObject: ' + this.uncheckedSerialize() + '>';
};

GovObject.prototype.toBuffer = function() {
    var writer = new BufferWriter();
    return this.toBufferWriter(writer).toBuffer();
};

GovObject.prototype.toBufferWriter = function(writer) {
    writer.write(new Buffer(this.dataHex()));
    return writer;
};

GovObject.prototype.fromBuffer = function(buffer) {
    var reader = new BufferReader(buffer);
    return this.fromBufferReader(reader);
};

GovObject.prototype.fromBufferReader = function(reader) {
    $.checkArgument(!reader.finished(), 'No data received');

    var dataHex = reader.read(reader.buf.length);
    var object = JSON.parse(dataHex.toString('utf8'));

    this.fromObject(object[0][1]); // attempt to parse as JSON Object

};

GovObject.shallowCopy = function(GovObject) {
    var copy = new GovObject(GovObject.toBuffer());
    return copy;
};

GovObject.prototype._verifyDateFormat = function(date) {
    var parsedDate = new Date(date * 1000);
    return parsedDate;
};

GovObject.prototype._verifyPayment = function(payment) {
    var parsedPayment = parseFloat(payment);
    if(isNaN(parsedPayment)) return true;

    return Boolean((parsedPayment <= 0));
};

GovObject.prototype._verifyAddress = function(address) {
    return address.length > 26;
    // - disable full check until checksum bug in Ubuntu Firefox is fixed

    // var validAddress = Address.isValid(address, network);
    // return validAddress;
};

GovObject.prototype._verifyUrl = function(url) {
    var urlregex = /^(http|https):\/\/[^ "]{1,255}$/;
    return urlregex.test(url);
};

GovObject.prototype._verifyName = function(name) {
    var nameregex = /^[-_a-zA-Z0-9]{1,40}$/;
    return nameregex.test(name);
};


module.exports = GovObject;

}).call(this,require("buffer").Buffer)
},{"../address":1,"../encoding/bufferreader":14,"../encoding/bufferwriter":15,"../errors":17,"../util/buffer":46,"../util/js":47,"../util/preconditions":48,"buffer":95,"buffer-compare":93,"lodash":142}],20:[function(require,module,exports){
module.exports = require('./govobject');

module.exports.Proposal = require('./types/proposal');

},{"./govobject":19,"./types/proposal":21}],21:[function(require,module,exports){
'use strict';

var _ = require('lodash');
var $ = require('../../util/preconditions');
var GovObject = require('../govobject');
var errors = require('../../errors');
var inherits = require('util').inherits;

/**
 * Represents 'proposal' Governance Object
 *
 * @constructor
 */
function Proposal(serialized) {
    GovObject.call(this, serialized);
}

inherits(Proposal,GovObject);

Proposal.prototype.dataHex = function() {
    var _govObj = {
        end_epoch: this.end_epoch,
        name: this.name,
        payment_address: this.payment_address,
        payment_amount: this.payment_amount,
        start_epoch: this.start_epoch,
        type: this.type,
        url: this.url
    };

    // screwy data shims 'til we can fix this on dashd
    var inner = ['proposal', _govObj];
    var outer = [ inner ];

    return JSON.stringify(outer);
};

Proposal.prototype._newGovObject = function() {
    this.end_epoch = "";
    this.name = "";
    this.payment_address = "";
    this.payment_amount = "";
    this.start_epoch = "";
    this.type = "";
    this.url = "";
};

Proposal.prototype.fromObject = function fromObject(arg) {
  //Allow an arg to be a stringified json
  if(!(_.isObject(arg) || arg instanceof GovObject)){
    try{
      var parsed = JSON.parse(arg);
    }catch(e){
      throw new Error('Must be a valid stringified JSON');
    }
    return this.fromObject(parsed);
  }

  var expectedProperties = [
    ["end_epoch", "number"],
    ['name','string'],
    ["payment_address","string"],
    ['payment_amount', "number"],
    ["start_epoch", "number"],
    ['type',"number"],
    ['url','string']
  ];
  var proposal = arg;
  var self = this;
  _.each(expectedProperties, function(prop){
    var expectedPropName = prop[0];
    var expectedPropType = prop[1];
    var existProp = proposal.hasOwnProperty(expectedPropName);
    if(!existProp){
      throw new Error('Must be a valid JSON - Property '+expectedPropName+' missing');
    }
    var receivedType = typeof proposal[expectedPropName];
    if(receivedType!==expectedPropType){
      var err_m = 'Must be a valid JSON - Expected property '+expectedPropName+' to be a '+expectedPropType+ ' received:'+receivedType
      throw new Error(err_m);
    }
    try{
      self[expectedPropName]=proposal[expectedPropName];
    }catch(e){
      throw new Error('Failed in setting up arguments values.'+e);
    }
  });

  if(proposal.type && proposal.type!==1){
      //Not a proposal type, return to GovObject;
      throw new Error("Must be a valid proposal type.");
      return GovObject.fromObject(arg);
  }
  return this;
};

Proposal.prototype.fromBufferReader = function(reader) {
    $.checkArgument(!reader.finished(), 'No data received');

    var dataHex = reader.read(reader.buf.length);
    var object = JSON.parse(dataHex.toString('utf8'));

    this.type = object[0][0];

    this.end_epoch = object[0][1].end_epoch;
    this.name = object[0][1].name;
    this.payment_address = object[0][1].payment_address;
    this.payment_amount = object[0][1].payment_amount;
    this.start_epoch = object[0][1].start_epoch;
    this.type = object[0][1].type;
    this.url = object[0][1].url;

    return this;

};

Proposal.prototype.getSerializationError = function(opts) {
    opts = opts || {};

    // verify date format is a number
    if(isNaN(this._verifyDateFormat(this.start_epoch))) {
        return new errors.GovObject.Proposal.invalidDate();
    }

    // verify date format is a number
    if(isNaN(this._verifyDateFormat(this.end_epoch))) {
        return new errors.GovObject.Proposal.invalidDate();
    }

    // verify that start_epoch is greater than or equal to end_epoch
    if (this.start_epoch >= this.end_epoch) {
        return new errors.GovObject.Proposal.invalidDateWindow();
    }

    // verify that end_epoch is later than now
    var now = Math.round(new Date().getTime()/1000);
    if (this.end_epoch < now) {
        return new errors.GovObject.Proposal.invalidDateWindow();
    }

    // verify address (only verifies length > 26)
    if (!this._verifyAddress(this.payment_address)) {
        return new errors.GovObject.Proposal.invalidAddress();
    }

    // verify payment amount (should be non-negative number)
    if (this._verifyPayment(this.payment_amount)) {
        return new errors.GovObject.Proposal.invalidPayment();
    }

    // verify url contains http/https and is less than or equal to 255 characters in length
    if(!this._verifyUrl(this.url)) {
        return new errors.GovObject.Proposal.invalidUrl();
    }

    // verify name is alphanumeric and less than or equal to 40 characters in length
    if(!this._verifyName(this.name)) {
        return new errors.GovObject.Proposal.invalidName();
    }

};


module.exports = Proposal;

},{"../../errors":17,"../../util/preconditions":48,"../govobject":19,"lodash":142,"util":194}],22:[function(require,module,exports){
'use strict';

module.exports = {
  _cache: {},
  _count: 0,
  _eraseIndex: 0,
  _usedList: {},
  _usedIndex: {},
  _CACHE_SIZE: 5000,

  get: function(xkey, number, hardened) {
    hardened = !!hardened;
    var key = xkey + '/' + number + '/' + hardened;
    if (this._cache[key]) {
      this._cacheHit(key);
      return this._cache[key];
    }
  },
  set: function(xkey, number, hardened, derived) {
    hardened = !!hardened;
    var key = xkey + '/' + number + '/' + hardened;
    this._cache[key] = derived;
    this._cacheHit(key);
  },
  _cacheHit: function(key) {
    if (this._usedIndex[key]) {
      delete this._usedList[this._usedIndex[key]];
    }
    this._usedList[this._count] = key;
    this._usedIndex[key] = this._count;
    this._count++;
    this._cacheRemove();
  },
  _cacheRemove: function() {
    while (this._eraseIndex < this._count - this._CACHE_SIZE) {
      if (this._usedList[this._eraseIndex]) {
        var removeKey = this._usedList[this._eraseIndex];
        delete this._usedIndex[removeKey];
        delete this._cache[removeKey];
      }
      delete this._usedList[this._eraseIndex];
      this._eraseIndex++;
    }
  }
};

},{}],23:[function(require,module,exports){
(function (Buffer){
'use strict';


var assert = require('assert');
var buffer = require('buffer');
var _ = require('lodash');
var $ = require('./util/preconditions');

var BN = require('./crypto/bn');
var Base58 = require('./encoding/base58');
var Base58Check = require('./encoding/base58check');
var Hash = require('./crypto/hash');
var Network = require('./networks');
var HDKeyCache = require('./hdkeycache');
var Point = require('./crypto/point');
var PrivateKey = require('./privatekey');
var Random = require('./crypto/random');

var errors = require('./errors');
var hdErrors = errors.HDPrivateKey;
var BufferUtil = require('./util/buffer');
var JSUtil = require('./util/js');

var MINIMUM_ENTROPY_BITS = 128;
var BITS_TO_BYTES = 1 / 8;
var MAXIMUM_ENTROPY_BITS = 512;


/**
 * Represents an instance of an hierarchically derived private key.
 *
 * More info on https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
 *
 * @constructor
 * @param {string|Buffer|Object} arg
 */
function HDPrivateKey(arg) {
  /* jshint maxcomplexity: 10 */
  if (arg instanceof HDPrivateKey) {
    return arg;
  }
  if (!(this instanceof HDPrivateKey)) {
    return new HDPrivateKey(arg);
  }
  if (!arg) {
    return this._generateRandomly();
  }

  if (Network.get(arg)) {
    return this._generateRandomly(arg);
  } else if (_.isString(arg) || BufferUtil.isBuffer(arg)) {
    if (HDPrivateKey.isValidSerialized(arg)) {
      this._buildFromSerialized(arg);
    } else if (JSUtil.isValidJSON(arg)) {
      this._buildFromJSON(arg);
    } else if (BufferUtil.isBuffer(arg) && HDPrivateKey.isValidSerialized(arg.toString())) {
      this._buildFromSerialized(arg.toString());
    } else {
      throw HDPrivateKey.getSerializedError(arg);
    }
  } else if (_.isObject(arg)) {
    this._buildFromObject(arg);
  } else {
    throw new hdErrors.UnrecognizedArgument(arg);
  }
}

/**
 * Verifies that a given path is valid.
 *
 * @param {string|number} arg
 * @param {boolean?} hardened
 * @return {boolean}
 */
HDPrivateKey.isValidPath = function(arg, hardened) {
  if (_.isString(arg)) {
    var indexes = HDPrivateKey._getDerivationIndexes(arg);
    return indexes !== null && _.all(indexes, HDPrivateKey.isValidPath);
  }

  if (_.isNumber(arg)) {
    if (arg < HDPrivateKey.Hardened && hardened === true) {
      arg += HDPrivateKey.Hardened;
    }
    return arg >= 0 && arg < HDPrivateKey.MaxIndex;
  }

  return false;
};

/**
 * Internal function that splits a string path into a derivation index array.
 * It will return null if the string path is malformed.
 * It does not validate if indexes are in bounds.
 *
 * @param {string} path
 * @return {Array}
 */
HDPrivateKey._getDerivationIndexes = function(path) {
  var steps = path.split('/');

  // Special cases:
  if (_.contains(HDPrivateKey.RootElementAlias, path)) {
    return [];
  }

  if (!_.contains(HDPrivateKey.RootElementAlias, steps[0])) {
    return null;
  }

  var indexes = steps.slice(1).map(function(step) {
    var isHardened = step.slice(-1) === '\'';
    if (isHardened) {
      step = step.slice(0, -1);
    }
    if (!step || step[0] === '-') {
      return NaN;
    }
    var index = +step; // cast to number
    if (isHardened) {
      index += HDPrivateKey.Hardened;
    }

    return index;
  });

  return _.any(indexes, isNaN) ? null : indexes;
};

/**
 * Get a derived child based on a string or number.
 *
 * If the first argument is a string, it's parsed as the full path of
 * derivation. Valid values for this argument include "m" (which returns the
 * same private key), "m/0/1/40/2'/1000", where the ' quote means a hardened
 * derivation.
 *
 * If the first argument is a number, the child with that index will be
 * derived. If the second argument is truthy, the hardened version will be
 * derived. See the example usage for clarification.
 *
 * @example
 * ```javascript
 * var parent = new HDPrivateKey('xprv...');
 * var child_0_1_2h = parent.derive(0).derive(1).derive(2, true);
 * var copy_of_child_0_1_2h = parent.derive("m/0/1/2'");
 * assert(child_0_1_2h.xprivkey === copy_of_child_0_1_2h);
 * ```
 *
 * @param {string|number} arg
 * @param {boolean?} hardened
 */
HDPrivateKey.prototype.derive = function(arg, hardened) {
  if (_.isNumber(arg)) {
    return this._deriveWithNumber(arg, hardened);
  } else if (_.isString(arg)) {
    return this._deriveFromString(arg);
  } else {
    throw new hdErrors.InvalidDerivationArgument(arg);
  }
};

HDPrivateKey.prototype._deriveWithNumber = function(index, hardened) {
  /* jshint maxstatements: 20 */
  /* jshint maxcomplexity: 10 */
  if (!HDPrivateKey.isValidPath(index, hardened)) {
    throw new hdErrors.InvalidPath(index);
  }

  hardened = index >= HDPrivateKey.Hardened ? true : hardened;
  if (index < HDPrivateKey.Hardened && hardened === true) {
    index += HDPrivateKey.Hardened;
  }

  var cached = HDKeyCache.get(this.xprivkey, index, hardened);
  if (cached) {
    return cached;
  }

  var indexBuffer = BufferUtil.integerAsBuffer(index);
  var data;
  if (hardened) {
    data = BufferUtil.concat([new buffer.Buffer([0]), this.privateKey.toBuffer(), indexBuffer]);
  } else {
    data = BufferUtil.concat([this.publicKey.toBuffer(), indexBuffer]);
  }
  var hash = Hash.sha512hmac(data, this._buffers.chainCode);
  var leftPart = BN.fromBuffer(hash.slice(0, 32), {
    size: 32
  });
  var chainCode = hash.slice(32, 64);

  var privateKey = leftPart.add(this.privateKey.toBigNumber()).mod(Point.getN()).toBuffer({
    size: 32
  });

  var derived = new HDPrivateKey({
    network: this.network,
    depth: this.depth + 1,
    parentFingerPrint: this.fingerPrint,
    childIndex: index,
    chainCode: chainCode,
    privateKey: privateKey
  });
  HDKeyCache.set(this.xprivkey, index, hardened, derived);
  return derived;
};

HDPrivateKey.prototype._deriveFromString = function(path) {
  if (!HDPrivateKey.isValidPath(path)) {
    throw new hdErrors.InvalidPath(path);
  }

  var indexes = HDPrivateKey._getDerivationIndexes(path);
  var derived = indexes.reduce(function(prev, index) {
    return prev._deriveWithNumber(index);
  }, this);

  return derived;
};

/**
 * Verifies that a given serialized private key in base58 with checksum format
 * is valid.
 *
 * @param {string|Buffer} data - the serialized private key
 * @param {string|Network=} network - optional, if present, checks that the
 *     network provided matches the network serialized.
 * @return {boolean}
 */
HDPrivateKey.isValidSerialized = function(data, network) {
  return !HDPrivateKey.getSerializedError(data, network);
};

/**
 * Checks what's the error that causes the validation of a serialized private key
 * in base58 with checksum to fail.
 *
 * @param {string|Buffer} data - the serialized private key
 * @param {string|Network=} network - optional, if present, checks that the
 *     network provided matches the network serialized.
 * @return {errors.InvalidArgument|null}
 */
HDPrivateKey.getSerializedError = function(data, network) {
  /* jshint maxcomplexity: 10 */
  if (!(_.isString(data) || BufferUtil.isBuffer(data))) {
    return new hdErrors.UnrecognizedArgument('Expected string or buffer');
  }
  if (!Base58.validCharacters(data)) {
    return new errors.InvalidB58Char('(unknown)', data);
  }
  try {
    data = Base58Check.decode(data);
  } catch (e) {
    return new errors.InvalidB58Checksum(data);
  }
  if (data.length !== HDPrivateKey.DataLength) {
    return new hdErrors.InvalidLength(data);
  }
  if (!_.isUndefined(network)) {
    var error = HDPrivateKey._validateNetwork(data, network);
    if (error) {
      return error;
    }
  }
  return null;
};

HDPrivateKey._validateNetwork = function(data, networkArg) {
  var network = Network.get(networkArg);
  if (!network) {
    return new errors.InvalidNetworkArgument(networkArg);
  }
  var version = data.slice(0, 4);
  if (BufferUtil.integerFromBuffer(version) !== network.xprivkey) {
    return new errors.InvalidNetwork(version);
  }
  return null;
};

HDPrivateKey.fromString = function(arg) {
  $.checkArgument(_.isString(arg), 'No valid string was provided');
  return new HDPrivateKey(arg);
};

HDPrivateKey.fromObject = function(arg) {
  $.checkArgument(_.isObject(arg), 'No valid argument was provided');
  return new HDPrivateKey(arg);
};

HDPrivateKey.prototype._buildFromJSON = function(arg) {
  return this._buildFromObject(JSON.parse(arg));
};

HDPrivateKey.prototype._buildFromObject = function(arg) {
  /* jshint maxcomplexity: 12 */
  // TODO: Type validation
  var buffers = {
    version: arg.network ? BufferUtil.integerAsBuffer(Network.get(arg.network).xprivkey) : arg.version,
    depth: _.isNumber(arg.depth) ? BufferUtil.integerAsSingleByteBuffer(arg.depth) : arg.depth,
    parentFingerPrint: _.isNumber(arg.parentFingerPrint) ? BufferUtil.integerAsBuffer(arg.parentFingerPrint) : arg.parentFingerPrint,
    childIndex: _.isNumber(arg.childIndex) ? BufferUtil.integerAsBuffer(arg.childIndex) : arg.childIndex,
    chainCode: _.isString(arg.chainCode) ? BufferUtil.hexToBuffer(arg.chainCode) : arg.chainCode,
    privateKey: (_.isString(arg.privateKey) && JSUtil.isHexa(arg.privateKey)) ? BufferUtil.hexToBuffer(arg.privateKey) : arg.privateKey,
    checksum: arg.checksum ? (arg.checksum.length ? arg.checksum : BufferUtil.integerAsBuffer(arg.checksum)) : undefined
  };
  return this._buildFromBuffers(buffers);
};

HDPrivateKey.prototype._buildFromSerialized = function(arg) {
  var decoded = Base58Check.decode(arg);
  var buffers = {
    version: decoded.slice(HDPrivateKey.VersionStart, HDPrivateKey.VersionEnd),
    depth: decoded.slice(HDPrivateKey.DepthStart, HDPrivateKey.DepthEnd),
    parentFingerPrint: decoded.slice(HDPrivateKey.ParentFingerPrintStart,
      HDPrivateKey.ParentFingerPrintEnd),
    childIndex: decoded.slice(HDPrivateKey.ChildIndexStart, HDPrivateKey.ChildIndexEnd),
    chainCode: decoded.slice(HDPrivateKey.ChainCodeStart, HDPrivateKey.ChainCodeEnd),
    privateKey: decoded.slice(HDPrivateKey.PrivateKeyStart, HDPrivateKey.PrivateKeyEnd),
    checksum: decoded.slice(HDPrivateKey.ChecksumStart, HDPrivateKey.ChecksumEnd),
    xprivkey: arg
  };
  return this._buildFromBuffers(buffers);
};

HDPrivateKey.prototype._generateRandomly = function(network) {
  return HDPrivateKey.fromSeed(Random.getRandomBuffer(64), network);
};

/**
 * Generate a private key from a seed, as described in BIP32
 *
 * @param {string|Buffer} hexa
 * @param {*} network
 * @return HDPrivateKey
 */
HDPrivateKey.fromSeed = function(hexa, network) {
  /* jshint maxcomplexity: 8 */
  if (JSUtil.isHexaString(hexa)) {
    hexa = BufferUtil.hexToBuffer(hexa);
  }
  if (!Buffer.isBuffer(hexa)) {
    throw new hdErrors.InvalidEntropyArgument(hexa);
  }
  if (hexa.length < MINIMUM_ENTROPY_BITS * BITS_TO_BYTES) {
    throw new hdErrors.InvalidEntropyArgument.NotEnoughEntropy(hexa);
  }
  if (hexa.length > MAXIMUM_ENTROPY_BITS * BITS_TO_BYTES) {
    throw new hdErrors.InvalidEntropyArgument.TooMuchEntropy(hexa);
  }
  var hash = Hash.sha512hmac(hexa, new buffer.Buffer('Bitcoin seed'));

  return new HDPrivateKey({
    network: Network.get(network) || Network.defaultNetwork,
    depth: 0,
    parentFingerPrint: 0,
    childIndex: 0,
    privateKey: hash.slice(0, 32),
    chainCode: hash.slice(32, 64)
  });
};



HDPrivateKey.prototype._calcHDPublicKey = function() {
  if (!this._hdPublicKey) {
    var HDPublicKey = require('./hdpublickey');
    this._hdPublicKey = new HDPublicKey(this);
  }
};

/**
 * Receives a object with buffers in all the properties and populates the
 * internal structure
 *
 * @param {Object} arg
 * @param {buffer.Buffer} arg.version
 * @param {buffer.Buffer} arg.depth
 * @param {buffer.Buffer} arg.parentFingerPrint
 * @param {buffer.Buffer} arg.childIndex
 * @param {buffer.Buffer} arg.chainCode
 * @param {buffer.Buffer} arg.privateKey
 * @param {buffer.Buffer} arg.checksum
 * @param {string=} arg.xprivkey - if set, don't recalculate the base58
 *      representation
 * @return {HDPrivateKey} this
 */
HDPrivateKey.prototype._buildFromBuffers = function(arg) {
  /* jshint maxcomplexity: 8 */
  /* jshint maxstatements: 20 */

  HDPrivateKey._validateBufferArguments(arg);

  JSUtil.defineImmutable(this, {
    _buffers: arg
  });

  var sequence = [
    arg.version, arg.depth, arg.parentFingerPrint, arg.childIndex, arg.chainCode,
    BufferUtil.emptyBuffer(1), arg.privateKey
  ];
  var concat = buffer.Buffer.concat(sequence);
  if (!arg.checksum || !arg.checksum.length) {
    arg.checksum = Base58Check.checksum(concat);
  } else {
    if (arg.checksum.toString() !== Base58Check.checksum(concat).toString()) {
      throw new errors.InvalidB58Checksum(concat);
    }
  }

  var network = Network.get(BufferUtil.integerFromBuffer(arg.version));
  var xprivkey;
  xprivkey = Base58Check.encode(buffer.Buffer.concat(sequence));
  arg.xprivkey = new Buffer(xprivkey);

  var privateKey = new PrivateKey(BN.fromBuffer(arg.privateKey), network);
  var publicKey = privateKey.toPublicKey();
  var size = HDPrivateKey.ParentFingerPrintSize;
  var fingerPrint = Hash.sha256ripemd160(publicKey.toBuffer()).slice(0, size);

  JSUtil.defineImmutable(this, {
    xprivkey: xprivkey,
    network: network,
    depth: BufferUtil.integerFromSingleByteBuffer(arg.depth),
    privateKey: privateKey,
    publicKey: publicKey,
    fingerPrint: fingerPrint
  });

  this._hdPublicKey = null;

  Object.defineProperty(this, 'hdPublicKey', {
    configurable: false,
    enumerable: true,
    get: function() {
      this._calcHDPublicKey();
      return this._hdPublicKey;
    }
  });
  Object.defineProperty(this, 'xpubkey', {
    configurable: false,
    enumerable: true,
    get: function() {
      this._calcHDPublicKey();
      return this._hdPublicKey.xpubkey;
    }
  });
  return this;
};

HDPrivateKey._validateBufferArguments = function(arg) {
  var checkBuffer = function(name, size) {
    var buff = arg[name];
    assert(BufferUtil.isBuffer(buff), name + ' argument is not a buffer');
    assert(
      buff.length === size,
      name + ' has not the expected size: found ' + buff.length + ', expected ' + size
    );
  };
  checkBuffer('version', HDPrivateKey.VersionSize);
  checkBuffer('depth', HDPrivateKey.DepthSize);
  checkBuffer('parentFingerPrint', HDPrivateKey.ParentFingerPrintSize);
  checkBuffer('childIndex', HDPrivateKey.ChildIndexSize);
  checkBuffer('chainCode', HDPrivateKey.ChainCodeSize);
  checkBuffer('privateKey', HDPrivateKey.PrivateKeySize);
  if (arg.checksum && arg.checksum.length) {
    checkBuffer('checksum', HDPrivateKey.CheckSumSize);
  }
};

/**
 * Returns the string representation of this private key (a string starting
 * with "xprv..."
 *
 * @return string
 */
HDPrivateKey.prototype.toString = function() {
  return this.xprivkey;
};

/**
 * Returns the console representation of this extended private key.
 * @return string
 */
HDPrivateKey.prototype.inspect = function() {
  return '<HDPrivateKey: ' + this.xprivkey + '>';
};

/**
 * Returns a plain object with a representation of this private key.
 *
 * Fields include:<ul>
 * <li> network: either 'livenet' or 'testnet'
 * <li> depth: a number ranging from 0 to 255
 * <li> fingerPrint: a number ranging from 0 to 2^32-1, taken from the hash of the
 * <li>     associated public key
 * <li> parentFingerPrint: a number ranging from 0 to 2^32-1, taken from the hash
 * <li>     of this parent's associated public key or zero.
 * <li> childIndex: the index from which this child was derived (or zero)
 * <li> chainCode: an hexa string representing a number used in the derivation
 * <li> privateKey: the private key associated, in hexa representation
 * <li> xprivkey: the representation of this extended private key in checksum
 * <li>     base58 format
 * <li> checksum: the base58 checksum of xprivkey
 * </ul>
 *  @return {Object}
 */
HDPrivateKey.prototype.toObject = HDPrivateKey.prototype.toJSON = function toObject() {
  return {
    network: Network.get(BufferUtil.integerFromBuffer(this._buffers.version), 'xprivkey').name,
    depth: BufferUtil.integerFromSingleByteBuffer(this._buffers.depth),
    fingerPrint: BufferUtil.integerFromBuffer(this.fingerPrint),
    parentFingerPrint: BufferUtil.integerFromBuffer(this._buffers.parentFingerPrint),
    childIndex: BufferUtil.integerFromBuffer(this._buffers.childIndex),
    chainCode: BufferUtil.bufferToHex(this._buffers.chainCode),
    privateKey: this.privateKey.toBuffer().toString('hex'),
    checksum: BufferUtil.integerFromBuffer(this._buffers.checksum),
    xprivkey: this.xprivkey
  };
};

/**
 * Build a HDPrivateKey from a buffer
 *
 * @param {Buffer} arg
 * @return {HDPrivateKey}
 */
HDPrivateKey.fromBuffer = function(arg) {
  return new HDPrivateKey(arg.toString());
};

/**
 * Returns a buffer representation of the HDPrivateKey
 *
 * @return {string}
 */
HDPrivateKey.prototype.toBuffer = function() {
  return BufferUtil.copy(this._buffers.xprivkey);
};

HDPrivateKey.DefaultDepth = 0;
HDPrivateKey.DefaultFingerprint = 0;
HDPrivateKey.DefaultChildIndex = 0;
HDPrivateKey.Hardened = 0x80000000;
HDPrivateKey.MaxIndex = 2 * HDPrivateKey.Hardened;

HDPrivateKey.RootElementAlias = ['m', 'M', 'm\'', 'M\''];

HDPrivateKey.VersionSize = 4;
HDPrivateKey.DepthSize = 1;
HDPrivateKey.ParentFingerPrintSize = 4;
HDPrivateKey.ChildIndexSize = 4;
HDPrivateKey.ChainCodeSize = 32;
HDPrivateKey.PrivateKeySize = 32;
HDPrivateKey.CheckSumSize = 4;

HDPrivateKey.DataLength = 78;
HDPrivateKey.SerializedByteSize = 82;

HDPrivateKey.VersionStart = 0;
HDPrivateKey.VersionEnd = HDPrivateKey.VersionStart + HDPrivateKey.VersionSize;
HDPrivateKey.DepthStart = HDPrivateKey.VersionEnd;
HDPrivateKey.DepthEnd = HDPrivateKey.DepthStart + HDPrivateKey.DepthSize;
HDPrivateKey.ParentFingerPrintStart = HDPrivateKey.DepthEnd;
HDPrivateKey.ParentFingerPrintEnd = HDPrivateKey.ParentFingerPrintStart + HDPrivateKey.ParentFingerPrintSize;
HDPrivateKey.ChildIndexStart = HDPrivateKey.ParentFingerPrintEnd;
HDPrivateKey.ChildIndexEnd = HDPrivateKey.ChildIndexStart + HDPrivateKey.ChildIndexSize;
HDPrivateKey.ChainCodeStart = HDPrivateKey.ChildIndexEnd;
HDPrivateKey.ChainCodeEnd = HDPrivateKey.ChainCodeStart + HDPrivateKey.ChainCodeSize;
HDPrivateKey.PrivateKeyStart = HDPrivateKey.ChainCodeEnd + 1;
HDPrivateKey.PrivateKeyEnd = HDPrivateKey.PrivateKeyStart + HDPrivateKey.PrivateKeySize;
HDPrivateKey.ChecksumStart = HDPrivateKey.PrivateKeyEnd;
HDPrivateKey.ChecksumEnd = HDPrivateKey.ChecksumStart + HDPrivateKey.CheckSumSize;

assert(HDPrivateKey.ChecksumEnd === HDPrivateKey.SerializedByteSize);

module.exports = HDPrivateKey;

}).call(this,require("buffer").Buffer)
},{"./crypto/bn":6,"./crypto/hash":8,"./crypto/point":9,"./crypto/random":10,"./encoding/base58":12,"./encoding/base58check":13,"./errors":17,"./hdkeycache":22,"./hdpublickey":24,"./networks":25,"./privatekey":27,"./util/buffer":46,"./util/js":47,"./util/preconditions":48,"assert":63,"buffer":95,"lodash":142}],24:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var $ = require('./util/preconditions');

var BN = require('./crypto/bn');
var Base58 = require('./encoding/base58');
var Base58Check = require('./encoding/base58check');
var Hash = require('./crypto/hash');
var HDPrivateKey = require('./hdprivatekey');
var HDKeyCache = require('./hdkeycache');
var Network = require('./networks');
var Point = require('./crypto/point');
var PublicKey = require('./publickey');

var bitcoreErrors = require('./errors');
var errors = bitcoreErrors;
var hdErrors = bitcoreErrors.HDPublicKey;
var assert = require('assert');

var JSUtil = require('./util/js');
var BufferUtil = require('./util/buffer');

/**
 * The representation of an hierarchically derived public key.
 *
 * See https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
 *
 * @constructor
 * @param {Object|string|Buffer} arg
 */
function HDPublicKey(arg) {
  /* jshint maxcomplexity: 12 */
  /* jshint maxstatements: 20 */
  if (arg instanceof HDPublicKey) {
    return arg;
  }
  if (!(this instanceof HDPublicKey)) {
    return new HDPublicKey(arg);
  }
  if (arg) {
    if (_.isString(arg) || BufferUtil.isBuffer(arg)) {
      var error = HDPublicKey.getSerializedError(arg);
      if (!error) {
        return this._buildFromSerialized(arg);
      } else if (BufferUtil.isBuffer(arg) && !HDPublicKey.getSerializedError(arg.toString())) {
        return this._buildFromSerialized(arg.toString());
      } else {
        if (error instanceof hdErrors.ArgumentIsPrivateExtended) {
          return new HDPrivateKey(arg).hdPublicKey;
        }
        throw error;
      }
    } else {
      if (_.isObject(arg)) {
        if (arg instanceof HDPrivateKey) {
          return this._buildFromPrivate(arg);
        } else {
          return this._buildFromObject(arg);
        }
      } else {
        throw new hdErrors.UnrecognizedArgument(arg);
      }
    }
  } else {
    throw new hdErrors.MustSupplyArgument();
  }
}

/**
 * Verifies that a given path is valid.
 *
 * @param {string|number} arg
 * @return {boolean}
 */
HDPublicKey.isValidPath = function(arg) {
  if (_.isString(arg)) {
    var indexes = HDPrivateKey._getDerivationIndexes(arg);
    return indexes !== null && _.all(indexes, HDPublicKey.isValidPath);
  }

  if (_.isNumber(arg)) {
    return arg >= 0 && arg < HDPublicKey.Hardened;
  }

  return false;
};

/**
 * Get a derivated child based on a string or number.
 *
 * If the first argument is a string, it's parsed as the full path of
 * derivation. Valid values for this argument include "m" (which returns the
 * same public key), "m/0/1/40/2/1000".
 *
 * Note that hardened keys can't be derived from a public extended key.
 *
 * If the first argument is a number, the child with that index will be
 * derived. See the example usage for clarification.
 *
 * @example
 * ```javascript
 * var parent = new HDPublicKey('xpub...');
 * var child_0_1_2 = parent.derive(0).derive(1).derive(2);
 * var copy_of_child_0_1_2 = parent.derive("m/0/1/2");
 * assert(child_0_1_2.xprivkey === copy_of_child_0_1_2);
 * ```
 *
 * @param {string|number} arg
 */
HDPublicKey.prototype.derive = function(arg, hardened) {
  if (_.isNumber(arg)) {
    return this._deriveWithNumber(arg, hardened);
  } else if (_.isString(arg)) {
    return this._deriveFromString(arg);
  } else {
    throw new hdErrors.InvalidDerivationArgument(arg);
  }
};

HDPublicKey.prototype._deriveWithNumber = function(index, hardened) {
  if (index >= HDPublicKey.Hardened || hardened) {
    throw new hdErrors.InvalidIndexCantDeriveHardened();
  }
  if (index < 0) {
    throw new hdErrors.InvalidPath(index);
  }
  var cached = HDKeyCache.get(this.xpubkey, index, false);
  if (cached) {
    return cached;
  }

  var indexBuffer = BufferUtil.integerAsBuffer(index);
  var data = BufferUtil.concat([this.publicKey.toBuffer(), indexBuffer]);
  var hash = Hash.sha512hmac(data, this._buffers.chainCode);
  var leftPart = BN.fromBuffer(hash.slice(0, 32), {size: 32});
  var chainCode = hash.slice(32, 64);

  var publicKey = PublicKey.fromPoint(Point.getG().mul(leftPart).add(this.publicKey.point));

  var derived = new HDPublicKey({
    network: this.network,
    depth: this.depth + 1,
    parentFingerPrint: this.fingerPrint,
    childIndex: index,
    chainCode: chainCode,
    publicKey: publicKey
  });
  HDKeyCache.set(this.xpubkey, index, false, derived);
  return derived;
};

HDPublicKey.prototype._deriveFromString = function(path) {
  /* jshint maxcomplexity: 8 */
  if (_.contains(path, "'")) {
    throw new hdErrors.InvalidIndexCantDeriveHardened();
  } else if (!HDPublicKey.isValidPath(path)) {
    throw new hdErrors.InvalidPath(path);
  }

  var indexes = HDPrivateKey._getDerivationIndexes(path);
  var derived = indexes.reduce(function(prev, index) {
    return prev._deriveWithNumber(index);
  }, this);

  return derived;
};

/**
 * Verifies that a given serialized public key in base58 with checksum format
 * is valid.
 *
 * @param {string|Buffer} data - the serialized public key
 * @param {string|Network=} network - optional, if present, checks that the
 *     network provided matches the network serialized.
 * @return {boolean}
 */
HDPublicKey.isValidSerialized = function(data, network) {
  return _.isNull(HDPublicKey.getSerializedError(data, network));
};

/**
 * Checks what's the error that causes the validation of a serialized public key
 * in base58 with checksum to fail.
 *
 * @param {string|Buffer} data - the serialized public key
 * @param {string|Network=} network - optional, if present, checks that the
 *     network provided matches the network serialized.
 * @return {errors|null}
 */
HDPublicKey.getSerializedError = function(data, network) {
  /* jshint maxcomplexity: 10 */
  /* jshint maxstatements: 20 */
  if (!(_.isString(data) || BufferUtil.isBuffer(data))) {
    return new hdErrors.UnrecognizedArgument('expected buffer or string');
  }
  if (!Base58.validCharacters(data)) {
    return new errors.InvalidB58Char('(unknown)', data);
  }
  try {
    data = Base58Check.decode(data);
  } catch (e) {
    return new errors.InvalidB58Checksum(data);
  }
  if (data.length !== HDPublicKey.DataSize) {
    return new hdErrors.InvalidLength(data);
  }
  if (!_.isUndefined(network)) {
    var error = HDPublicKey._validateNetwork(data, network);
    if (error) {
      return error;
    }
  }
  var version = BufferUtil.integerFromBuffer(data.slice(0, 4));
  if (version === Network.livenet.xprivkey || version === Network.testnet.xprivkey ) {
    return new hdErrors.ArgumentIsPrivateExtended();
  }
  return null;
};

HDPublicKey._validateNetwork = function(data, networkArg) {
  var network = Network.get(networkArg);
  if (!network) {
    return new errors.InvalidNetworkArgument(networkArg);
  }
  var version = data.slice(HDPublicKey.VersionStart, HDPublicKey.VersionEnd);
  if (BufferUtil.integerFromBuffer(version) !== network.xpubkey) {
    return new errors.InvalidNetwork(version);
  }
  return null;
};

HDPublicKey.prototype._buildFromPrivate = function (arg) {
  var args = _.clone(arg._buffers);
  var point = Point.getG().mul(BN.fromBuffer(args.privateKey));
  args.publicKey = Point.pointToCompressed(point);
  args.version = BufferUtil.integerAsBuffer(Network.get(BufferUtil.integerFromBuffer(args.version)).xpubkey);
  args.privateKey = undefined;
  args.checksum = undefined;
  args.xprivkey = undefined;
  return this._buildFromBuffers(args);
};

HDPublicKey.prototype._buildFromObject = function(arg) {
  /* jshint maxcomplexity: 10 */
  // TODO: Type validation
  var buffers = {
    version: arg.network ? BufferUtil.integerAsBuffer(Network.get(arg.network).xpubkey) : arg.version,
    depth: _.isNumber(arg.depth) ? BufferUtil.integerAsSingleByteBuffer(arg.depth) : arg.depth,
    parentFingerPrint: _.isNumber(arg.parentFingerPrint) ? BufferUtil.integerAsBuffer(arg.parentFingerPrint) : arg.parentFingerPrint,
    childIndex: _.isNumber(arg.childIndex) ? BufferUtil.integerAsBuffer(arg.childIndex) : arg.childIndex,
    chainCode: _.isString(arg.chainCode) ? BufferUtil.hexToBuffer(arg.chainCode) : arg.chainCode,
    publicKey: _.isString(arg.publicKey) ? BufferUtil.hexToBuffer(arg.publicKey) :
      BufferUtil.isBuffer(arg.publicKey) ? arg.publicKey : arg.publicKey.toBuffer(),
    checksum: _.isNumber(arg.checksum) ? BufferUtil.integerAsBuffer(arg.checksum) : arg.checksum
  };
  return this._buildFromBuffers(buffers);
};

HDPublicKey.prototype._buildFromSerialized = function(arg) {
  var decoded = Base58Check.decode(arg);
  var buffers = {
    version: decoded.slice(HDPublicKey.VersionStart, HDPublicKey.VersionEnd),
    depth: decoded.slice(HDPublicKey.DepthStart, HDPublicKey.DepthEnd),
    parentFingerPrint: decoded.slice(HDPublicKey.ParentFingerPrintStart,
                                     HDPublicKey.ParentFingerPrintEnd),
    childIndex: decoded.slice(HDPublicKey.ChildIndexStart, HDPublicKey.ChildIndexEnd),
    chainCode: decoded.slice(HDPublicKey.ChainCodeStart, HDPublicKey.ChainCodeEnd),
    publicKey: decoded.slice(HDPublicKey.PublicKeyStart, HDPublicKey.PublicKeyEnd),
    checksum: decoded.slice(HDPublicKey.ChecksumStart, HDPublicKey.ChecksumEnd),
    xpubkey: arg
  };
  return this._buildFromBuffers(buffers);
};

/**
 * Receives a object with buffers in all the properties and populates the
 * internal structure
 *
 * @param {Object} arg
 * @param {buffer.Buffer} arg.version
 * @param {buffer.Buffer} arg.depth
 * @param {buffer.Buffer} arg.parentFingerPrint
 * @param {buffer.Buffer} arg.childIndex
 * @param {buffer.Buffer} arg.chainCode
 * @param {buffer.Buffer} arg.publicKey
 * @param {buffer.Buffer} arg.checksum
 * @param {string=} arg.xpubkey - if set, don't recalculate the base58
 *      representation
 * @return {HDPublicKey} this
 */
HDPublicKey.prototype._buildFromBuffers = function(arg) {
  /* jshint maxcomplexity: 8 */
  /* jshint maxstatements: 20 */

  HDPublicKey._validateBufferArguments(arg);

  JSUtil.defineImmutable(this, {
    _buffers: arg
  });

  var sequence = [
    arg.version, arg.depth, arg.parentFingerPrint, arg.childIndex, arg.chainCode,
    arg.publicKey
  ];
  var concat = BufferUtil.concat(sequence);
  var checksum = Base58Check.checksum(concat);
  if (!arg.checksum || !arg.checksum.length) {
    arg.checksum = checksum;
  } else {
    if (arg.checksum.toString('hex') !== checksum.toString('hex')) {
      throw new errors.InvalidB58Checksum(concat, checksum);
    }
  }
  var network = Network.get(BufferUtil.integerFromBuffer(arg.version));

  var xpubkey;
  xpubkey = Base58Check.encode(BufferUtil.concat(sequence));
  arg.xpubkey = new Buffer(xpubkey);

  var publicKey = new PublicKey(arg.publicKey, {network: network});
  var size = HDPublicKey.ParentFingerPrintSize;
  var fingerPrint = Hash.sha256ripemd160(publicKey.toBuffer()).slice(0, size);

  JSUtil.defineImmutable(this, {
    xpubkey: xpubkey,
    network: network,
    depth: BufferUtil.integerFromSingleByteBuffer(arg.depth),
    publicKey: publicKey,
    fingerPrint: fingerPrint
  });

  return this;
};

HDPublicKey._validateBufferArguments = function(arg) {
  var checkBuffer = function(name, size) {
    var buff = arg[name];
    assert(BufferUtil.isBuffer(buff), name + ' argument is not a buffer, it\'s ' + typeof buff);
    assert(
      buff.length === size,
      name + ' has not the expected size: found ' + buff.length + ', expected ' + size
    );
  };
  checkBuffer('version', HDPublicKey.VersionSize);
  checkBuffer('depth', HDPublicKey.DepthSize);
  checkBuffer('parentFingerPrint', HDPublicKey.ParentFingerPrintSize);
  checkBuffer('childIndex', HDPublicKey.ChildIndexSize);
  checkBuffer('chainCode', HDPublicKey.ChainCodeSize);
  checkBuffer('publicKey', HDPublicKey.PublicKeySize);
  if (arg.checksum && arg.checksum.length) {
    checkBuffer('checksum', HDPublicKey.CheckSumSize);
  }
};

HDPublicKey.fromString = function(arg) {
  $.checkArgument(_.isString(arg), 'No valid string was provided');
  return new HDPublicKey(arg);
};

HDPublicKey.fromObject = function(arg) {
  $.checkArgument(_.isObject(arg), 'No valid argument was provided');
  return new HDPublicKey(arg);
};

/**
 * Returns the base58 checked representation of the public key
 * @return {string} a string starting with "xpub..." in livenet
 */
HDPublicKey.prototype.toString = function() {
  return this.xpubkey;
};

/**
 * Returns the console representation of this extended public key.
 * @return string
 */
HDPublicKey.prototype.inspect = function() {
  return '<HDPublicKey: ' + this.xpubkey + '>';
};

/**
 * Returns a plain JavaScript object with information to reconstruct a key.
 *
 * Fields are: <ul>
 *  <li> network: 'livenet' or 'testnet'
 *  <li> depth: a number from 0 to 255, the depth to the master extended key
 *  <li> fingerPrint: a number of 32 bits taken from the hash of the public key
 *  <li> fingerPrint: a number of 32 bits taken from the hash of this key's
 *  <li>     parent's public key
 *  <li> childIndex: index with which this key was derived
 *  <li> chainCode: string in hexa encoding used for derivation
 *  <li> publicKey: string, hexa encoded, in compressed key format
 *  <li> checksum: BufferUtil.integerFromBuffer(this._buffers.checksum),
 *  <li> xpubkey: the string with the base58 representation of this extended key
 *  <li> checksum: the base58 checksum of xpubkey
 * </ul>
 */
HDPublicKey.prototype.toObject = HDPublicKey.prototype.toJSON = function toObject() {
  return {
    network: Network.get(BufferUtil.integerFromBuffer(this._buffers.version)).name,
    depth: BufferUtil.integerFromSingleByteBuffer(this._buffers.depth),
    fingerPrint: BufferUtil.integerFromBuffer(this.fingerPrint),
    parentFingerPrint: BufferUtil.integerFromBuffer(this._buffers.parentFingerPrint),
    childIndex: BufferUtil.integerFromBuffer(this._buffers.childIndex),
    chainCode: BufferUtil.bufferToHex(this._buffers.chainCode),
    publicKey: this.publicKey.toString(),
    checksum: BufferUtil.integerFromBuffer(this._buffers.checksum),
    xpubkey: this.xpubkey
  };
};

/**
 * Create a HDPublicKey from a buffer argument
 *
 * @param {Buffer} arg
 * @return {HDPublicKey}
 */
HDPublicKey.fromBuffer = function(arg) {
  return new HDPublicKey(arg);
};

/**
 * Return a buffer representation of the xpubkey
 *
 * @return {Buffer}
 */
HDPublicKey.prototype.toBuffer = function() {
  return BufferUtil.copy(this._buffers.xpubkey);
};

HDPublicKey.Hardened = 0x80000000;
HDPublicKey.RootElementAlias = ['m', 'M'];

HDPublicKey.VersionSize = 4;
HDPublicKey.DepthSize = 1;
HDPublicKey.ParentFingerPrintSize = 4;
HDPublicKey.ChildIndexSize = 4;
HDPublicKey.ChainCodeSize = 32;
HDPublicKey.PublicKeySize = 33;
HDPublicKey.CheckSumSize = 4;

HDPublicKey.DataSize = 78;
HDPublicKey.SerializedByteSize = 82;

HDPublicKey.VersionStart           = 0;
HDPublicKey.VersionEnd             = HDPublicKey.VersionStart + HDPublicKey.VersionSize;
HDPublicKey.DepthStart             = HDPublicKey.VersionEnd;
HDPublicKey.DepthEnd               = HDPublicKey.DepthStart + HDPublicKey.DepthSize;
HDPublicKey.ParentFingerPrintStart = HDPublicKey.DepthEnd;
HDPublicKey.ParentFingerPrintEnd   = HDPublicKey.ParentFingerPrintStart + HDPublicKey.ParentFingerPrintSize;
HDPublicKey.ChildIndexStart        = HDPublicKey.ParentFingerPrintEnd;
HDPublicKey.ChildIndexEnd          = HDPublicKey.ChildIndexStart + HDPublicKey.ChildIndexSize;
HDPublicKey.ChainCodeStart         = HDPublicKey.ChildIndexEnd;
HDPublicKey.ChainCodeEnd           = HDPublicKey.ChainCodeStart + HDPublicKey.ChainCodeSize;
HDPublicKey.PublicKeyStart         = HDPublicKey.ChainCodeEnd;
HDPublicKey.PublicKeyEnd           = HDPublicKey.PublicKeyStart + HDPublicKey.PublicKeySize;
HDPublicKey.ChecksumStart          = HDPublicKey.PublicKeyEnd;
HDPublicKey.ChecksumEnd            = HDPublicKey.ChecksumStart + HDPublicKey.CheckSumSize;

assert(HDPublicKey.PublicKeyEnd === HDPublicKey.DataSize);
assert(HDPublicKey.ChecksumEnd === HDPublicKey.SerializedByteSize);

module.exports = HDPublicKey;

}).call(this,require("buffer").Buffer)
},{"./crypto/bn":6,"./crypto/hash":8,"./crypto/point":9,"./encoding/base58":12,"./encoding/base58check":13,"./errors":17,"./hdkeycache":22,"./hdprivatekey":23,"./networks":25,"./publickey":28,"./util/buffer":46,"./util/js":47,"./util/preconditions":48,"assert":63,"buffer":95,"lodash":142}],25:[function(require,module,exports){
'use strict';
var _ = require('lodash');

var BufferUtil = require('./util/buffer');
var JSUtil = require('./util/js');
var networks = [];
var networkMaps = {};

/**
 * A network is merely a map containing values that correspond to version
 * numbers for each bitcoin network. Currently only supporting "livenet"
 * (a.k.a. "mainnet") and "testnet".
 * @constructor
 */
function Network() {}

Network.prototype.toString = function toString() {
  return this.name;
};

/**
 * @function
 * @member Networks#get
 * Retrieves the network associated with a magic number or string.
 * @param {string|number|Network} arg
 * @param {string|Array} keys - if set, only check if the magic number associated with this name matches
 * @return Network
 */
function get(arg, keys) {
  if (~networks.indexOf(arg)) {
    return arg;
  }
  if (keys) {
    if (!_.isArray(keys)) {
      keys = [keys];
    }
    var containsArg = function(key) {
      return networks[index][key] === arg;
    };
    for (var index in networks) {
      if (_.any(keys, containsArg)) {
        return networks[index];
      }
    }
    return undefined;
  }
  return networkMaps[arg];
}

/**
 * @function
 * @member Networks#add
 * Will add a custom Network
 * @param {Object} data
 * @param {string} data.name - The name of the network
 * @param {string} data.alias - The aliased name of the network
 * @param {Number} data.pubkeyhash - The publickey hash prefix
 * @param {Number} data.privatekey - The privatekey prefix
 * @param {Number} data.scripthash - The scripthash prefix
 * @param {Number} data.xpubkey - The extended public key magic
 * @param {Number} data.xprivkey - The extended private key magic
 * @param {Number} data.networkMagic - The network magic number
 * @param {Number} data.port - The network port
 * @param {Array}  data.dnsSeeds - An array of dns seeds
 * @return Network
 */
function addNetwork(data) {

  var network = new Network();

  JSUtil.defineImmutable(network, {
    name: data.name,
    alias: data.alias,
    pubkeyhash: data.pubkeyhash,
    privatekey: data.privatekey,
    scripthash: data.scripthash,
    xpubkey: data.xpubkey,
    xprivkey: data.xprivkey
  });

  if (data.networkMagic) {
    JSUtil.defineImmutable(network, {
      networkMagic: BufferUtil.integerAsBuffer(data.networkMagic)
    });
  }

  if (data.port) {
    JSUtil.defineImmutable(network, {
      port: data.port
    });
  }

  if (data.dnsSeeds) {
    JSUtil.defineImmutable(network, {
      dnsSeeds: data.dnsSeeds
    });
  }
  _.each(network, function(value) {
    if (!_.isUndefined(value) && !_.isObject(value)) {
      networkMaps[value] = network;
    }
  });

  networks.push(network);

  return network;

}

/**
 * @function
 * @member Networks#remove
 * Will remove a custom network
 * @param {Network} network
 */
function removeNetwork(network) {
  for (var i = 0; i < networks.length; i++) {
    if (networks[i] === network) {
      networks.splice(i, 1);
    }
  }
  for (var key in networkMaps) {
    if (networkMaps[key] === network) {
      delete networkMaps[key];
    }
  }
}

addNetwork({
  name: 'livenet',
  alias: 'mainnet',
  pubkeyhash: 0x4c,
  privatekey: 0xcc,
  scripthash: 0x10,
  xpubkey: 0x488b21e,    // 'xpub' (Bitcoin Default)
  xprivkey: 0x488ade4,   // 'xprv' (Bitcoin Default)
  networkMagic: 0xbf0c6bbd,
  port: 9999,
  dnsSeeds: [
    'dnsseed.darkcoin.io',
    'dnsseed.dashdot.io',
    'dnsseed.masternode.io',
    'dnsseed.dashpay.io'
  ]
});

/**
 * @instance
 * @member Networks#livenet
 */
var livenet = get('livenet');

addNetwork({
  name: 'testnet',
  alias: 'regtest',
  pubkeyhash: 0x8c,
  privatekey: 0xef,
  scripthash: 0x13,
  xpubkey: 0x43587cf,     // 'tpub' (Bitcoin Default)
  xprivkey: 0x04358394    // 'tprv' (Bitcoin Default)
});

/**
 * @instance
 * @member Networks#testnet
 */
var testnet = get('testnet');

// Add configurable values for testnet/regtest

var TESTNET = {
  PORT: 19999,
  NETWORK_MAGIC: BufferUtil.integerAsBuffer(0xcee2caff),
  DNS_SEEDS: [
    'testnet-seed.darkcoin.io',
    'testnet-seed.dashdot.io',
    'test.dnsseed.masternode.io'
  ]
};

for (var key in TESTNET) {
  if (!_.isObject(TESTNET[key])) {
    networkMaps[TESTNET[key]] = testnet;
  }
}

var REGTEST = {
  PORT: 19994,
  NETWORK_MAGIC: BufferUtil.integerAsBuffer(0xfcc1b7dc),
  DNS_SEEDS: []
};

for (var key in REGTEST) {
  if (!_.isObject(REGTEST[key])) {
    networkMaps[REGTEST[key]] = testnet;
  }
}

Object.defineProperty(testnet, 'port', {
  enumerable: true,
  configurable: false,
  get: function() {
    if (this.regtestEnabled) {
      return REGTEST.PORT;
    } else {
      return TESTNET.PORT;
    }
  }
});

Object.defineProperty(testnet, 'networkMagic', {
  enumerable: true,
  configurable: false,
  get: function() {
    if (this.regtestEnabled) {
      return REGTEST.NETWORK_MAGIC;
    } else {
      return TESTNET.NETWORK_MAGIC;
    }
  }
});

Object.defineProperty(testnet, 'dnsSeeds', {
  enumerable: true,
  configurable: false,
  get: function() {
    if (this.regtestEnabled) {
      return REGTEST.DNS_SEEDS;
    } else {
      return TESTNET.DNS_SEEDS;
    }
  }
});

/**
 * @function
 * @member Networks#enableRegtest
 * Will enable regtest features for testnet
 */
function enableRegtest() {
  testnet.regtestEnabled = true;
}

/**
 * @function
 * @member Networks#disableRegtest
 * Will disable regtest features for testnet
 */
function disableRegtest() {
  testnet.regtestEnabled = false;
}

/**
 * @namespace Networks
 */
module.exports = {
  add: addNetwork,
  remove: removeNetwork,
  defaultNetwork: livenet,
  livenet: livenet,
  mainnet: livenet,
  testnet: testnet,
  get: get,
  enableRegtest: enableRegtest,
  disableRegtest: disableRegtest
};

},{"./util/buffer":46,"./util/js":47,"lodash":142}],26:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var $ = require('./util/preconditions');
var BufferUtil = require('./util/buffer');
var JSUtil = require('./util/js');

function Opcode(num) {
  if (!(this instanceof Opcode)) {
    return new Opcode(num);
  }

  var value;

  if (_.isNumber(num)) {
    value = num;
  } else if (_.isString(num)) {
    value = Opcode.map[num];
  } else {
    throw new TypeError('Unrecognized num type: "' + typeof(num) + '" for Opcode');
  }

  JSUtil.defineImmutable(this, {
    num: value
  });

  return this;
}

Opcode.fromBuffer = function(buf) {
  $.checkArgument(BufferUtil.isBuffer(buf));
  return new Opcode(Number('0x' + buf.toString('hex')));
};

Opcode.fromNumber = function(num) {
  $.checkArgument(_.isNumber(num));
  return new Opcode(num);
};

Opcode.fromString = function(str) {
  $.checkArgument(_.isString(str));
  var value = Opcode.map[str];
  if (typeof value === 'undefined') {
    throw new TypeError('Invalid opcodestr');
  }
  return new Opcode(value);
};

Opcode.prototype.toHex = function() {
  return this.num.toString(16);
};

Opcode.prototype.toBuffer = function() {
  return new Buffer(this.toHex(), 'hex');
};

Opcode.prototype.toNumber = function() {
  return this.num;
};

Opcode.prototype.toString = function() {
  var str = Opcode.reverseMap[this.num];
  if (typeof str === 'undefined') {
    throw new Error('Opcode does not have a string representation');
  }
  return str;
};

Opcode.smallInt = function(n) {
  $.checkArgument(_.isNumber(n), 'Invalid Argument: n should be number');
  $.checkArgument(n >= 0 && n <= 16, 'Invalid Argument: n must be between 0 and 16');
  if (n === 0) {
    return Opcode('OP_0');
  }
  return new Opcode(Opcode.map.OP_1 + n - 1);
};

Opcode.map = {
  // push value
  OP_FALSE: 0,
  OP_0: 0,
  OP_PUSHDATA1: 76,
  OP_PUSHDATA2: 77,
  OP_PUSHDATA4: 78,
  OP_1NEGATE: 79,
  OP_RESERVED: 80,
  OP_TRUE: 81,
  OP_1: 81,
  OP_2: 82,
  OP_3: 83,
  OP_4: 84,
  OP_5: 85,
  OP_6: 86,
  OP_7: 87,
  OP_8: 88,
  OP_9: 89,
  OP_10: 90,
  OP_11: 91,
  OP_12: 92,
  OP_13: 93,
  OP_14: 94,
  OP_15: 95,
  OP_16: 96,

  // control
  OP_NOP: 97,
  OP_VER: 98,
  OP_IF: 99,
  OP_NOTIF: 100,
  OP_VERIF: 101,
  OP_VERNOTIF: 102,
  OP_ELSE: 103,
  OP_ENDIF: 104,
  OP_VERIFY: 105,
  OP_RETURN: 106,

  // stack ops
  OP_TOALTSTACK: 107,
  OP_FROMALTSTACK: 108,
  OP_2DROP: 109,
  OP_2DUP: 110,
  OP_3DUP: 111,
  OP_2OVER: 112,
  OP_2ROT: 113,
  OP_2SWAP: 114,
  OP_IFDUP: 115,
  OP_DEPTH: 116,
  OP_DROP: 117,
  OP_DUP: 118,
  OP_NIP: 119,
  OP_OVER: 120,
  OP_PICK: 121,
  OP_ROLL: 122,
  OP_ROT: 123,
  OP_SWAP: 124,
  OP_TUCK: 125,

  // splice ops
  OP_CAT: 126,
  OP_SUBSTR: 127,
  OP_LEFT: 128,
  OP_RIGHT: 129,
  OP_SIZE: 130,

  // bit logic
  OP_INVERT: 131,
  OP_AND: 132,
  OP_OR: 133,
  OP_XOR: 134,
  OP_EQUAL: 135,
  OP_EQUALVERIFY: 136,
  OP_RESERVED1: 137,
  OP_RESERVED2: 138,

  // numeric
  OP_1ADD: 139,
  OP_1SUB: 140,
  OP_2MUL: 141,
  OP_2DIV: 142,
  OP_NEGATE: 143,
  OP_ABS: 144,
  OP_NOT: 145,
  OP_0NOTEQUAL: 146,

  OP_ADD: 147,
  OP_SUB: 148,
  OP_MUL: 149,
  OP_DIV: 150,
  OP_MOD: 151,
  OP_LSHIFT: 152,
  OP_RSHIFT: 153,

  OP_BOOLAND: 154,
  OP_BOOLOR: 155,
  OP_NUMEQUAL: 156,
  OP_NUMEQUALVERIFY: 157,
  OP_NUMNOTEQUAL: 158,
  OP_LESSTHAN: 159,
  OP_GREATERTHAN: 160,
  OP_LESSTHANOREQUAL: 161,
  OP_GREATERTHANOREQUAL: 162,
  OP_MIN: 163,
  OP_MAX: 164,

  OP_WITHIN: 165,

  // crypto
  OP_RIPEMD160: 166,
  OP_SHA1: 167,
  OP_SHA256: 168,
  OP_HASH160: 169,
  OP_HASH256: 170,
  OP_CODESEPARATOR: 171,
  OP_CHECKSIG: 172,
  OP_CHECKSIGVERIFY: 173,
  OP_CHECKMULTISIG: 174,
  OP_CHECKMULTISIGVERIFY: 175,

  OP_CHECKLOCKTIMEVERIFY: 177,

  // expansion
  OP_NOP1: 176,
  OP_NOP2: 177,
  OP_NOP3: 178,
  OP_NOP4: 179,
  OP_NOP5: 180,
  OP_NOP6: 181,
  OP_NOP7: 182,
  OP_NOP8: 183,
  OP_NOP9: 184,
  OP_NOP10: 185,

  // template matching params
  OP_PUBKEYHASH: 253,
  OP_PUBKEY: 254,
  OP_INVALIDOPCODE: 255
};

Opcode.reverseMap = [];

for (var k in Opcode.map) {
  Opcode.reverseMap[Opcode.map[k]] = k;
}

// Easier access to opcodes
_.extend(Opcode, Opcode.map);

/**
 * @returns true if opcode is one of OP_0, OP_1, ..., OP_16
 */
Opcode.isSmallIntOp = function(opcode) {
  if (opcode instanceof Opcode) {
    opcode = opcode.toNumber();
  }
  return ((opcode === Opcode.map.OP_0) ||
    ((opcode >= Opcode.map.OP_1) && (opcode <= Opcode.map.OP_16)));
};

/**
 * Will return a string formatted for the console
 *
 * @returns {string} Script opcode
 */
Opcode.prototype.inspect = function() {
  return '<Opcode: ' + this.toString() + ', hex: '+this.toHex()+', decimal: '+this.num+'>';
};

module.exports = Opcode;

}).call(this,require("buffer").Buffer)
},{"./util/buffer":46,"./util/js":47,"./util/preconditions":48,"buffer":95,"lodash":142}],27:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var Address = require('./address');
var Base58Check = require('./encoding/base58check');
var BN = require('./crypto/bn');
var JSUtil = require('./util/js');
var Networks = require('./networks');
var Point = require('./crypto/point');
var PublicKey = require('./publickey');
var Random = require('./crypto/random');
var $ = require('./util/preconditions');

/**
 * Instantiate a PrivateKey from a BN, Buffer and WIF.
 *
 * @example
 * ```javascript
 * // generate a new random key
 * var key = PrivateKey();
 *
 * // get the associated address
 * var address = key.toAddress();
 *
 * // encode into wallet export format
 * var exported = key.toWIF();
 *
 * // instantiate from the exported (and saved) private key
 * var imported = PrivateKey.fromWIF(exported);
 * ```
 *
 * @param {string} data - The encoded data in various formats
 * @param {Network|string=} network - a {@link Network} object, or a string with the network name
 * @returns {PrivateKey} A new valid instance of an PrivateKey
 * @constructor
 */
function PrivateKey(data, network) {
  /* jshint maxstatements: 20 */
  /* jshint maxcomplexity: 8 */

  if (!(this instanceof PrivateKey)) {
    return new PrivateKey(data, network);
  }
  if (data instanceof PrivateKey) {
    return data;
  }

  var info = this._classifyArguments(data, network);

  // validation
  if (!info.bn || info.bn.cmp(new BN(0)) === 0){
    throw new TypeError('Number can not be equal to zero, undefined, null or false');
  }
  if (!info.bn.lt(Point.getN())) {
    throw new TypeError('Number must be less than N');
  }
  if (typeof(info.network) === 'undefined') {
    throw new TypeError('Must specify the network ("livenet" or "testnet")');
  }

  JSUtil.defineImmutable(this, {
    bn: info.bn,
    compressed: info.compressed,
    network: info.network
  });

  Object.defineProperty(this, 'publicKey', {
    configurable: false,
    enumerable: true,
    get: this.toPublicKey.bind(this)
  });

  return this;

};

/**
 * Internal helper to instantiate PrivateKey internal `info` object from
 * different kinds of arguments passed to the constructor.
 *
 * @param {*} data
 * @param {Network|string=} network - a {@link Network} object, or a string with the network name
 * @return {Object}
 */
PrivateKey.prototype._classifyArguments = function(data, network) {
  /* jshint maxcomplexity: 10 */
  var info = {
    compressed: true,
    network: network ? Networks.get(network) : Networks.defaultNetwork
  };

  // detect type of data
  if (_.isUndefined(data) || _.isNull(data)){
    info.bn = PrivateKey._getRandomBN();
  } else if (data instanceof BN) {
    info.bn = data;
  } else if (data instanceof Buffer || data instanceof Uint8Array) {
    info = PrivateKey._transformBuffer(data, network);
  } else if (data.bn && data.network){
    info = PrivateKey._transformObject(data);
  } else if (!network && Networks.get(data)) {
    info.bn = PrivateKey._getRandomBN();
    info.network = Networks.get(data);
  } else if (typeof(data) === 'string'){
    if (JSUtil.isHexa(data)) {
      info.bn = new BN(new Buffer(data, 'hex'));
    } else {
      info = PrivateKey._transformWIF(data, network);
    }
  } else {
    throw new TypeError('First argument is an unrecognized data type.');
  }
  return info;
};

/**
 * Internal function to get a random Big Number (BN)
 *
 * @returns {BN} A new randomly generated BN
 * @private
 */
PrivateKey._getRandomBN = function(){
  var condition;
  var bn;
  do {
    var privbuf = Random.getRandomBuffer(32);
    bn = BN.fromBuffer(privbuf);
    condition = bn.lt(Point.getN());
  } while (!condition);
  return bn;
};

/**
 * Internal function to transform a WIF Buffer into a private key
 *
 * @param {Buffer} buf - An WIF string
 * @param {Network|string=} network - a {@link Network} object, or a string with the network name
 * @returns {Object} An object with keys: bn, network and compressed
 * @private
 */
PrivateKey._transformBuffer = function(buf, network) {

  var info = {};

  if (buf.length === 32) {
    return PrivateKey._transformBNBuffer(buf, network);
  }

  info.network = Networks.get(buf[0], 'privatekey');

  if (!info.network) {
    throw new Error('Invalid network');
  }

  if (network && info.network !== Networks.get(network)) {
    throw new TypeError('Private key network mismatch');
  }

  if (buf.length === 1 + 32 + 1 && buf[1 + 32 + 1 - 1] === 1) {
    info.compressed = true;
  } else if (buf.length === 1 + 32) {
    info.compressed = false;
  } else {
    throw new Error('Length of buffer must be 33 (uncompressed) or 34 (compressed)');
  }

  info.bn = BN.fromBuffer(buf.slice(1, 32 + 1));

  return info;
};

/**
 * Internal function to transform a BN buffer into a private key
 *
 * @param {Buffer} buf
 * @param {Network|string=} network - a {@link Network} object, or a string with the network name
 * @returns {object} an Object with keys: bn, network, and compressed
 * @private
 */
PrivateKey._transformBNBuffer = function(buf, network) {
  var info = {};
  info.network = Networks.get(network) || Networks.defaultNetwork;
  info.bn = BN.fromBuffer(buf);
  info.compressed = false;
  return info;
};

/**
 * Internal function to transform a WIF string into a private key
 *
 * @param {string} buf - An WIF string
 * @returns {Object} An object with keys: bn, network and compressed
 * @private
 */
PrivateKey._transformWIF = function(str, network) {
  return PrivateKey._transformBuffer(Base58Check.decode(str), network);
};

/**
 * Instantiate a PrivateKey from a Buffer with the DER or WIF representation
 *
 * @param {Buffer} arg
 * @param {Network} network
 * @return {PrivateKey}
 */
PrivateKey.fromBuffer = function(arg, network) {
  return new PrivateKey(arg, network);
};

/**
 * Internal function to transform a JSON string on plain object into a private key
 * return this.
 *
 * @param {string} json - A JSON string or plain object
 * @returns {Object} An object with keys: bn, network and compressed
 * @private
 */
PrivateKey._transformObject = function(json) {
  var bn = new BN(json.bn, 'hex');
  var network = Networks.get(json.network);
  return {
    bn: bn,
    network: network,
    compressed: json.compressed
  };
};

/**
 * Instantiate a PrivateKey from a WIF string
 *
 * @param {string} str - The WIF encoded private key string
 * @returns {PrivateKey} A new valid instance of PrivateKey
 */
PrivateKey.fromString = PrivateKey.fromWIF = function(str) {
  $.checkArgument(_.isString(str), 'First argument is expected to be a string.');
  return new PrivateKey(str);
};

/**
 * Instantiate a PrivateKey from a plain JavaScript object
 *
 * @param {Object} obj - The output from privateKey.toObject()
 */
PrivateKey.fromObject = function(obj) {
  $.checkArgument(_.isObject(obj), 'First argument is expected to be an object.');
  return new PrivateKey(obj);
};

/**
 * Instantiate a PrivateKey from random bytes
 *
 * @param {string=} network - Either "livenet" or "testnet"
 * @returns {PrivateKey} A new valid instance of PrivateKey
 */
PrivateKey.fromRandom = function(network) {
  var bn = PrivateKey._getRandomBN();
  return new PrivateKey(bn, network);
};

/**
 * Check if there would be any errors when initializing a PrivateKey
 *
 * @param {string} data - The encoded data in various formats
 * @param {string=} network - Either "livenet" or "testnet"
 * @returns {null|Error} An error if exists
 */

PrivateKey.getValidationError = function(data, network) {
  var error;
  try {
    /* jshint nonew: false */
    new PrivateKey(data, network);
  } catch (e) {
    error = e;
  }
  return error;
};

/**
 * Check if the parameters are valid
 *
 * @param {string} data - The encoded data in various formats
 * @param {string=} network - Either "livenet" or "testnet"
 * @returns {Boolean} If the private key is would be valid
 */
PrivateKey.isValid = function(data, network){
  if (!data) {
    return false;
  }
  return !PrivateKey.getValidationError(data, network);
};

/**
 * Will output the PrivateKey encoded as hex string
 *
 * @returns {string}
 */
PrivateKey.prototype.toString = function() {
  return this.toBuffer().toString('hex');
};

/**
 * Will output the PrivateKey to a WIF string
 *
 * @returns {string} A WIP representation of the private key
 */
PrivateKey.prototype.toWIF = function() {
  var network = this.network;
  var compressed = this.compressed;

  var buf;
  if (compressed) {
    buf = Buffer.concat([new Buffer([network.privatekey]),
                         this.bn.toBuffer({size: 32}),
                         new Buffer([0x01])]);
  } else {
    buf = Buffer.concat([new Buffer([network.privatekey]),
                         this.bn.toBuffer({size: 32})]);
  }

  return Base58Check.encode(buf);
};

/**
 * Will return the private key as a BN instance
 *
 * @returns {BN} A BN instance of the private key
 */
PrivateKey.prototype.toBigNumber = function(){
  return this.bn;
};

/**
 * Will return the private key as a BN buffer
 *
 * @returns {Buffer} A buffer of the private key
 */
PrivateKey.prototype.toBuffer = function(){
  return this.bn.toBuffer();
};

/**
 * Will return the corresponding public key
 *
 * @returns {PublicKey} A public key generated from the private key
 */
PrivateKey.prototype.toPublicKey = function(){
  if (!this._pubkey) {
    this._pubkey = PublicKey.fromPrivateKey(this);
  }
  return this._pubkey;
};

/**
 * Will return an address for the private key
 * @param {Network=} network - optional parameter specifying
 * the desired network for the address
 *
 * @returns {Address} An address generated from the private key
 */
PrivateKey.prototype.toAddress = function(network) {
  var pubkey = this.toPublicKey();
  return Address.fromPublicKey(pubkey, network || this.network);
};

/**
 * @returns {Object} A plain object representation
 */
PrivateKey.prototype.toObject = PrivateKey.prototype.toJSON = function toObject() {
  return {
    bn: this.bn.toString('hex'),
    compressed: this.compressed,
    network: this.network.toString()
  };
};

/**
 * Will return a string formatted for the console
 *
 * @returns {string} Private key
 */
PrivateKey.prototype.inspect = function() {
  var uncompressed = !this.compressed ? ', uncompressed' : '';
  return '<PrivateKey: ' + this.toString() + ', network: ' + this.network + uncompressed + '>';
};

module.exports = PrivateKey;

}).call(this,require("buffer").Buffer)
},{"./address":1,"./crypto/bn":6,"./crypto/point":9,"./crypto/random":10,"./encoding/base58check":13,"./networks":25,"./publickey":28,"./util/js":47,"./util/preconditions":48,"buffer":95,"lodash":142}],28:[function(require,module,exports){
(function (Buffer){
'use strict';

var BN = require('./crypto/bn');
var Point = require('./crypto/point');
var Hash = require('./crypto/hash');
var JSUtil = require('./util/js');
var Network = require('./networks');
var _ = require('lodash');
var $ = require('./util/preconditions');

/**
 * Instantiate a PublicKey from a {@link PrivateKey}, {@link Point}, `string`, or `Buffer`.
 *
 * There are two internal properties, `network` and `compressed`, that deal with importing
 * a PublicKey from a PrivateKey in WIF format. More details described on {@link PrivateKey}
 *
 * @example
 * ```javascript
 * // instantiate from a private key
 * var key = PublicKey(privateKey, true);
 *
 * // export to as a DER hex encoded string
 * var exported = key.toString();
 *
 * // import the public key
 * var imported = PublicKey.fromString(exported);
 * ```
 *
 * @param {string} data - The encoded data in various formats
 * @param {Object} extra - additional options
 * @param {Network=} extra.network - Which network should the address for this public key be for
 * @param {String=} extra.compressed - If the public key is compressed
 * @returns {PublicKey} A new valid instance of an PublicKey
 * @constructor
 */
function PublicKey(data, extra) {

  if (!(this instanceof PublicKey)) {
    return new PublicKey(data, extra);
  }

  $.checkArgument(data, 'First argument is required, please include public key data.');

  if (data instanceof PublicKey) {
    // Return copy, but as it's an immutable object, return same argument
    return data;
  }
  extra = extra || {};

  var info = this._classifyArgs(data, extra);

  // validation
  info.point.validate();

  JSUtil.defineImmutable(this, {
    point: info.point,
    compressed: info.compressed,
    network: info.network || Network.defaultNetwork
  });

  return this;
};

/**
 * Internal function to differentiate between arguments passed to the constructor
 * @param {*} data
 * @param {Object} extra
 */
PublicKey.prototype._classifyArgs = function(data, extra) {
  /* jshint maxcomplexity: 10 */
  var info = {
    compressed: _.isUndefined(extra.compressed) || extra.compressed
  };

  // detect type of data
  if (data instanceof Point) {
    info.point = data;
  } else if (data.x && data.y) {
    info = PublicKey._transformObject(data);
  } else if (typeof(data) === 'string') {
    info = PublicKey._transformDER(new Buffer(data, 'hex'));
  } else if (PublicKey._isBuffer(data)) {
    info = PublicKey._transformDER(data);
  } else if (PublicKey._isPrivateKey(data)) {
    info = PublicKey._transformPrivateKey(data);
  } else {
    throw new TypeError('First argument is an unrecognized data format.');
  }
  if (!info.network) {
    info.network = _.isUndefined(extra.network) ? undefined : Network.get(extra.network);
  }
  return info;
};

/**
 * Internal function to detect if an object is a {@link PrivateKey}
 *
 * @param {*} param - object to test
 * @returns {boolean}
 * @private
 */
PublicKey._isPrivateKey = function(param) {
  var PrivateKey = require('./privatekey');
  return param instanceof PrivateKey;
};

/**
 * Internal function to detect if an object is a Buffer
 *
 * @param {*} param - object to test
 * @returns {boolean}
 * @private
 */
PublicKey._isBuffer = function(param) {
  return (param instanceof Buffer) || (param instanceof Uint8Array);
};

/**
 * Internal function to transform a private key into a public key point
 *
 * @param {PrivateKey} privkey - An instance of PrivateKey
 * @returns {Object} An object with keys: point and compressed
 * @private
 */
PublicKey._transformPrivateKey = function(privkey) {
  $.checkArgument(PublicKey._isPrivateKey(privkey), 'Must be an instance of PrivateKey');
  var info = {};
  info.point = Point.getG().mul(privkey.bn);
  info.compressed = privkey.compressed;
  info.network = privkey.network;
  return info;
};

/**
 * Internal function to transform DER into a public key point
 *
 * @param {Buffer} buf - An hex encoded buffer
 * @param {bool=} strict - if set to false, will loosen some conditions
 * @returns {Object} An object with keys: point and compressed
 * @private
 */
PublicKey._transformDER = function(buf, strict) {
  /* jshint maxstatements: 30 */
  /* jshint maxcomplexity: 12 */
  $.checkArgument(PublicKey._isBuffer(buf), 'Must be a hex buffer of DER encoded public key');
  var info = {};

  strict = _.isUndefined(strict) ? true : strict;

  var x;
  var y;
  var xbuf;
  var ybuf;

  if (buf[0] === 0x04 || (!strict && (buf[0] === 0x06 || buf[0] === 0x07))) {
    xbuf = buf.slice(1, 33);
    ybuf = buf.slice(33, 65);
    if (xbuf.length !== 32 || ybuf.length !== 32 || buf.length !== 65) {
      throw new TypeError('Length of x and y must be 32 bytes');
    }
    x = new BN(xbuf);
    y = new BN(ybuf);
    info.point = new Point(x, y);
    info.compressed = false;
  } else if (buf[0] === 0x03) {
    xbuf = buf.slice(1);
    x = new BN(xbuf);
    info = PublicKey._transformX(true, x);
    info.compressed = true;
  } else if (buf[0] === 0x02) {
    xbuf = buf.slice(1);
    x = new BN(xbuf);
    info = PublicKey._transformX(false, x);
    info.compressed = true;
  } else {
    throw new TypeError('Invalid DER format public key');
  }
  return info;
};

/**
 * Internal function to transform X into a public key point
 *
 * @param {Boolean} odd - If the point is above or below the x axis
 * @param {Point} x - The x point
 * @returns {Object} An object with keys: point and compressed
 * @private
 */
PublicKey._transformX = function(odd, x) {
  $.checkArgument(typeof odd === 'boolean', 'Must specify whether y is odd or not (true or false)');
  var info = {};
  info.point = Point.fromX(odd, x);
  return info;
};

/**
 * Internal function to transform a JSON into a public key point
 *
 * @param {String|Object} json - a JSON string or plain object
 * @returns {Object} An object with keys: point and compressed
 * @private
 */
PublicKey._transformObject = function(json) {
  var x = new BN(json.x, 'hex');
  var y = new BN(json.y, 'hex');
  var point = new Point(x, y);
  return new PublicKey(point, {
    compressed: json.compressed
  });
};

/**
 * Instantiate a PublicKey from a PrivateKey
 *
 * @param {PrivateKey} privkey - An instance of PrivateKey
 * @returns {PublicKey} A new valid instance of PublicKey
 */
PublicKey.fromPrivateKey = function(privkey) {
  $.checkArgument(PublicKey._isPrivateKey(privkey), 'Must be an instance of PrivateKey');
  var info = PublicKey._transformPrivateKey(privkey);
  return new PublicKey(info.point, {
    compressed: info.compressed,
    network: info.network
  });
};

/**
 * Instantiate a PublicKey from a Buffer
 * @param {Buffer} buf - A DER hex buffer
 * @param {bool=} strict - if set to false, will loosen some conditions
 * @returns {PublicKey} A new valid instance of PublicKey
 */
PublicKey.fromDER = PublicKey.fromBuffer = function(buf, strict) {
  $.checkArgument(PublicKey._isBuffer(buf), 'Must be a hex buffer of DER encoded public key');
  var info = PublicKey._transformDER(buf, strict);
  return new PublicKey(info.point, {
    compressed: info.compressed
  });
};

/**
 * Instantiate a PublicKey from a Point
 *
 * @param {Point} point - A Point instance
 * @param {boolean=} compressed - whether to store this public key as compressed format
 * @returns {PublicKey} A new valid instance of PublicKey
 */
PublicKey.fromPoint = function(point, compressed) {
  $.checkArgument(point instanceof Point, 'First argument must be an instance of Point.');
  return new PublicKey(point, {
    compressed: compressed
  });
};

/**
 * Instantiate a PublicKey from a DER hex encoded string
 *
 * @param {string} str - A DER hex string
 * @param {String=} encoding - The type of string encoding
 * @returns {PublicKey} A new valid instance of PublicKey
 */
PublicKey.fromString = function(str, encoding) {
  var buf = new Buffer(str, encoding || 'hex');
  var info = PublicKey._transformDER(buf);
  return new PublicKey(info.point, {
    compressed: info.compressed
  });
};

/**
 * Instantiate a PublicKey from an X Point
 *
 * @param {Boolean} odd - If the point is above or below the x axis
 * @param {Point} x - The x point
 * @returns {PublicKey} A new valid instance of PublicKey
 */
PublicKey.fromX = function(odd, x) {
  var info = PublicKey._transformX(odd, x);
  return new PublicKey(info.point, {
    compressed: info.compressed
  });
};

/**
 * Check if there would be any errors when initializing a PublicKey
 *
 * @param {string} data - The encoded data in various formats
 * @returns {null|Error} An error if exists
 */
PublicKey.getValidationError = function(data) {
  var error;
  try {
    /* jshint nonew: false */
    new PublicKey(data);
  } catch (e) {
    error = e;
  }
  return error;
};

/**
 * Check if the parameters are valid
 *
 * @param {string} data - The encoded data in various formats
 * @returns {Boolean} If the public key would be valid
 */
PublicKey.isValid = function(data) {
  return !PublicKey.getValidationError(data);
};

/**
 * @returns {Object} A plain object of the PublicKey
 */
PublicKey.prototype.toObject = PublicKey.prototype.toJSON = function toObject() {
  return {
    x: this.point.getX().toString('hex', 2),
    y: this.point.getY().toString('hex', 2),
    compressed: this.compressed
  };
};

/**
 * Will output the PublicKey to a DER Buffer
 *
 * @returns {Buffer} A DER hex encoded buffer
 */
PublicKey.prototype.toBuffer = PublicKey.prototype.toDER = function() {
  var x = this.point.getX();
  var y = this.point.getY();

  var xbuf = x.toBuffer({
    size: 32
  });
  var ybuf = y.toBuffer({
    size: 32
  });

  var prefix;
  if (!this.compressed) {
    prefix = new Buffer([0x04]);
    return Buffer.concat([prefix, xbuf, ybuf]);
  } else {
    var odd = ybuf[ybuf.length - 1] % 2;
    if (odd) {
      prefix = new Buffer([0x03]);
    } else {
      prefix = new Buffer([0x02]);
    }
    return Buffer.concat([prefix, xbuf]);
  }
};

/**
 * Will return a sha256 + ripemd160 hash of the serialized public key
 * @see https://github.com/bitcoin/bitcoin/blob/master/src/pubkey.h#L141
 * @returns {Buffer}
 */
PublicKey.prototype._getID = function _getID() {
  return Hash.sha256ripemd160(this.toBuffer());
};

/**
 * Will return an address for the public key
 *
 * @param {String|Network=} network - Which network should the address be for
 * @returns {Address} An address generated from the public key
 */
PublicKey.prototype.toAddress = function(network) {
  var Address = require('./address');
  return Address.fromPublicKey(this, network || this.network);
};

/**
 * Will output the PublicKey to a DER encoded hex string
 *
 * @returns {string} A DER hex encoded string
 */
PublicKey.prototype.toString = function() {
  return this.toDER().toString('hex');
};

/**
 * Will return a string formatted for the console
 *
 * @returns {string} Public key
 */
PublicKey.prototype.inspect = function() {
  return '<PublicKey: ' + this.toString() +
    (this.compressed ? '' : ', uncompressed') + '>';
};


module.exports = PublicKey;

}).call(this,require("buffer").Buffer)
},{"./address":1,"./crypto/bn":6,"./crypto/hash":8,"./crypto/point":9,"./networks":25,"./privatekey":27,"./util/js":47,"./util/preconditions":48,"buffer":95,"lodash":142}],29:[function(require,module,exports){
module.exports = require('./script');

module.exports.Interpreter = require('./interpreter');

},{"./interpreter":30,"./script":31}],30:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');

var Script = require('./script');
var Opcode = require('../opcode');
var BN = require('../crypto/bn');
var Hash = require('../crypto/hash');
var Signature = require('../crypto/signature');
var PublicKey = require('../publickey');

/**
 * Bitcoin transactions contain scripts. Each input has a script called the
 * scriptSig, and each output has a script called the scriptPubkey. To validate
 * an input, the input's script is concatenated with the referenced output script,
 * and the result is executed. If at the end of execution the stack contains a
 * "true" value, then the transaction is valid.
 *
 * The primary way to use this class is via the verify function.
 * e.g., Interpreter().verify( ... );
 */
var Interpreter = function Interpreter(obj) {
  if (!(this instanceof Interpreter)) {
    return new Interpreter(obj);
  }
  if (obj) {
    this.initialize();
    this.set(obj);
  } else {
    this.initialize();
  }
};

/**
 * Verifies a Script by executing it and returns true if it is valid.
 * This function needs to be provided with the scriptSig and the scriptPubkey
 * separately.
 * @param {Script} scriptSig - the script's first part (corresponding to the tx input)
 * @param {Script} scriptPubkey - the script's last part (corresponding to the tx output)
 * @param {Transaction=} tx - the Transaction containing the scriptSig in one input (used
 *    to check signature validity for some opcodes like OP_CHECKSIG)
 * @param {number} nin - index of the transaction input containing the scriptSig verified.
 * @param {number} flags - evaluation flags. See Interpreter.SCRIPT_* constants
 *
 * Translated from bitcoind's VerifyScript
 */
Interpreter.prototype.verify = function(scriptSig, scriptPubkey, tx, nin, flags) {
  var Transaction = require('../transaction');
  if (_.isUndefined(tx)) {
    tx = new Transaction();
  }
  if (_.isUndefined(nin)) {
    nin = 0;
  }
  if (_.isUndefined(flags)) {
    flags = 0;
  }
  this.set({
    script: scriptSig,
    tx: tx,
    nin: nin,
    flags: flags
  });
  var stackCopy;

  if ((flags & Interpreter.SCRIPT_VERIFY_SIGPUSHONLY) !== 0 && !scriptSig.isPushOnly()) {
    this.errstr = 'SCRIPT_ERR_SIG_PUSHONLY';
    return false;
  }

  // evaluate scriptSig
  if (!this.evaluate()) {
    return false;
  }

  if (flags & Interpreter.SCRIPT_VERIFY_P2SH) {
    stackCopy = this.stack.slice();
  }

  var stack = this.stack;
  this.initialize();
  this.set({
    script: scriptPubkey,
    stack: stack,
    tx: tx,
    nin: nin,
    flags: flags
  });

  // evaluate scriptPubkey
  if (!this.evaluate()) {
    return false;
  }

  if (this.stack.length === 0) {
    this.errstr = 'SCRIPT_ERR_EVAL_FALSE_NO_RESULT';
    return false;
  }

  var buf = this.stack[this.stack.length - 1];
  if (!Interpreter.castToBool(buf)) {
    this.errstr = 'SCRIPT_ERR_EVAL_FALSE_IN_STACK';
    return false;
  }

  // Additional validation for spend-to-script-hash transactions:
  if ((flags & Interpreter.SCRIPT_VERIFY_P2SH) && scriptPubkey.isScriptHashOut()) {
    // scriptSig must be literals-only or validation fails
    if (!scriptSig.isPushOnly()) {
      this.errstr = 'SCRIPT_ERR_SIG_PUSHONLY';
      return false;
    }

    // stackCopy cannot be empty here, because if it was the
    // P2SH  HASH <> EQUAL  scriptPubKey would be evaluated with
    // an empty stack and the EvalScript above would return false.
    if (stackCopy.length === 0) {
      throw new Error('internal error - stack copy empty');
    }

    var redeemScriptSerialized = stackCopy[stackCopy.length - 1];
    var redeemScript = Script.fromBuffer(redeemScriptSerialized);
    stackCopy.pop();

    this.initialize();
    this.set({
      script: redeemScript,
      stack: stackCopy,
      tx: tx,
      nin: nin,
      flags: flags
    });

    // evaluate redeemScript
    if (!this.evaluate()) {
      return false;
    }

    if (stackCopy.length === 0) {
      this.errstr = 'SCRIPT_ERR_EVAL_FALSE_NO_P2SH_STACK';
      return false;
    }

    if (!Interpreter.castToBool(stackCopy[stackCopy.length - 1])) {
      this.errstr = 'SCRIPT_ERR_EVAL_FALSE_IN_P2SH_STACK';
      return false;
    } else {
      return true;
    }
  }

  return true;
};

module.exports = Interpreter;

Interpreter.prototype.initialize = function(obj) {
  this.stack = [];
  this.altstack = [];
  this.pc = 0;
  this.pbegincodehash = 0;
  this.nOpCount = 0;
  this.vfExec = [];
  this.errstr = '';
  this.flags = 0;
};

Interpreter.prototype.set = function(obj) {
  this.script = obj.script || this.script;
  this.tx = obj.tx || this.tx;
  this.nin = typeof obj.nin !== 'undefined' ? obj.nin : this.nin;
  this.stack = obj.stack || this.stack;
  this.altstack = obj.altack || this.altstack;
  this.pc = typeof obj.pc !== 'undefined' ? obj.pc : this.pc;
  this.pbegincodehash = typeof obj.pbegincodehash !== 'undefined' ? obj.pbegincodehash : this.pbegincodehash;
  this.nOpCount = typeof obj.nOpCount !== 'undefined' ? obj.nOpCount : this.nOpCount;
  this.vfExec = obj.vfExec || this.vfExec;
  this.errstr = obj.errstr || this.errstr;
  this.flags = typeof obj.flags !== 'undefined' ? obj.flags : this.flags;
};

Interpreter.true = new Buffer([1]);
Interpreter.false = new Buffer([]);

Interpreter.MAX_SCRIPT_ELEMENT_SIZE = 520;

Interpreter.LOCKTIME_THRESHOLD = 500000000;
Interpreter.LOCKTIME_THRESHOLD_BN = new BN(Interpreter.LOCKTIME_THRESHOLD);

// flags taken from bitcoind
// bitcoind commit: b5d1b1092998bc95313856d535c632ea5a8f9104
Interpreter.SCRIPT_VERIFY_NONE = 0;

// Evaluate P2SH subscripts (softfork safe, BIP16).
Interpreter.SCRIPT_VERIFY_P2SH = (1 << 0);

// Passing a non-strict-DER signature or one with undefined hashtype to a checksig operation causes script failure.
// Passing a pubkey that is not (0x04 + 64 bytes) or (0x02 or 0x03 + 32 bytes) to checksig causes that pubkey to be
// skipped (not softfork safe: this flag can widen the validity of OP_CHECKSIG OP_NOT).
Interpreter.SCRIPT_VERIFY_STRICTENC = (1 << 1);

// Passing a non-strict-DER signature to a checksig operation causes script failure (softfork safe, BIP62 rule 1)
Interpreter.SCRIPT_VERIFY_DERSIG = (1 << 2);

// Passing a non-strict-DER signature or one with S > order/2 to a checksig operation causes script failure
// (softfork safe, BIP62 rule 5).
Interpreter.SCRIPT_VERIFY_LOW_S = (1 << 3);

// verify dummy stack item consumed by CHECKMULTISIG is of zero-length (softfork safe, BIP62 rule 7).
Interpreter.SCRIPT_VERIFY_NULLDUMMY = (1 << 4);

// Using a non-push operator in the scriptSig causes script failure (softfork safe, BIP62 rule 2).
Interpreter.SCRIPT_VERIFY_SIGPUSHONLY = (1 << 5);

// Require minimal encodings for all push operations (OP_0... OP_16, OP_1NEGATE where possible, direct
// pushes up to 75 bytes, OP_PUSHDATA up to 255 bytes, OP_PUSHDATA2 for anything larger). Evaluating
// any other push causes the script to fail (BIP62 rule 3).
// In addition, whenever a stack element is interpreted as a number, it must be of minimal length (BIP62 rule 4).
// (softfork safe)
Interpreter.SCRIPT_VERIFY_MINIMALDATA = (1 << 6);

// Discourage use of NOPs reserved for upgrades (NOP1-10)
//
// Provided so that nodes can avoid accepting or mining transactions
// containing executed NOP's whose meaning may change after a soft-fork,
// thus rendering the script invalid; with this flag set executing
// discouraged NOPs fails the script. This verification flag will never be
// a mandatory flag applied to scripts in a block. NOPs that are not
// executed, e.g.  within an unexecuted IF ENDIF block, are *not* rejected.
Interpreter.SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS = (1 << 7);

// CLTV See BIP65 for details.
Interpreter.SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY = (1 << 9);

Interpreter.castToBool = function(buf) {
  for (var i = 0; i < buf.length; i++) {
    if (buf[i] !== 0) {
      // can be negative zero
      if (i === buf.length - 1 && buf[i] === 0x80) {
        return false;
      }
      return true;
    }
  }
  return false;
};

/**
 * Translated from bitcoind's CheckSignatureEncoding
 */
Interpreter.prototype.checkSignatureEncoding = function(buf) {
  var sig;
  if ((this.flags & (Interpreter.SCRIPT_VERIFY_DERSIG | Interpreter.SCRIPT_VERIFY_LOW_S | Interpreter.SCRIPT_VERIFY_STRICTENC)) !== 0 && !Signature.isTxDER(buf)) {
    this.errstr = 'SCRIPT_ERR_SIG_DER_INVALID_FORMAT';
    return false;
  } else if ((this.flags & Interpreter.SCRIPT_VERIFY_LOW_S) !== 0) {
    sig = Signature.fromTxFormat(buf);
    if (!sig.hasLowS()) {
      this.errstr = 'SCRIPT_ERR_SIG_DER_HIGH_S';
      return false;
    }
  } else if ((this.flags & Interpreter.SCRIPT_VERIFY_STRICTENC) !== 0) {
    sig = Signature.fromTxFormat(buf);
    if (!sig.hasDefinedHashtype()) {
      this.errstr = 'SCRIPT_ERR_SIG_HASHTYPE';
      return false;
    }
  }
  return true;
};

/**
 * Translated from bitcoind's CheckPubKeyEncoding
 */
Interpreter.prototype.checkPubkeyEncoding = function(buf) {
  if ((this.flags & Interpreter.SCRIPT_VERIFY_STRICTENC) !== 0 && !PublicKey.isValid(buf)) {
    this.errstr = 'SCRIPT_ERR_PUBKEYTYPE';
    return false;
  }
  return true;
};

/**
 * Based on bitcoind's EvalScript function, with the inner loop moved to
 * Interpreter.prototype.step()
 * bitcoind commit: b5d1b1092998bc95313856d535c632ea5a8f9104
 */
Interpreter.prototype.evaluate = function() {
  if (this.script.toBuffer().length > 10000) {
    this.errstr = 'SCRIPT_ERR_SCRIPT_SIZE';
    return false;
  }

  try {
    while (this.pc < this.script.chunks.length) {
      var fSuccess = this.step();
      if (!fSuccess) {
        return false;
      }
    }

    // Size limits
    if (this.stack.length + this.altstack.length > 1000) {
      this.errstr = 'SCRIPT_ERR_STACK_SIZE';
      return false;
    }
  } catch (e) {
    this.errstr = 'SCRIPT_ERR_UNKNOWN_ERROR: ' + e;
    return false;
  }

  if (this.vfExec.length > 0) {
    this.errstr = 'SCRIPT_ERR_UNBALANCED_CONDITIONAL';
    return false;
  }

  return true;
};

/**
 * Checks a locktime parameter with the transaction's locktime.
 * There are two times of nLockTime: lock-by-blockheight and lock-by-blocktime,
 * distinguished by whether nLockTime < LOCKTIME_THRESHOLD = 500000000
 *
 * See the corresponding code on bitcoin core:
 * https://github.com/bitcoin/bitcoin/blob/ffd75adce01a78b3461b3ff05bcc2b530a9ce994/src/script/interpreter.cpp#L1129
 *
 * @param {BN} nLockTime the locktime read from the script
 * @return {boolean} true if the transaction's locktime is less than or equal to
 *                   the transaction's locktime
 */
Interpreter.prototype.checkLockTime = function(nLockTime) {

  // We want to compare apples to apples, so fail the script
  // unless the type of nLockTime being tested is the same as
  // the nLockTime in the transaction.
  if (!(
    (this.tx.nLockTime <  Interpreter.LOCKTIME_THRESHOLD && nLockTime.lt(Interpreter.LOCKTIME_THRESHOLD_BN)) ||
    (this.tx.nLockTime >= Interpreter.LOCKTIME_THRESHOLD && nLockTime.gte(Interpreter.LOCKTIME_THRESHOLD_BN))
  )) {
    return false;
  }

  // Now that we know we're comparing apples-to-apples, the
  // comparison is a simple numeric one.
  if (nLockTime.gt(new BN(this.tx.nLockTime))) {
    return false;
  }

  // Finally the nLockTime feature can be disabled and thus
  // CHECKLOCKTIMEVERIFY bypassed if every txin has been
  // finalized by setting nSequence to maxint. The
  // transaction would be allowed into the blockchain, making
  // the opcode ineffective.
  //
  // Testing if this vin is not final is sufficient to
  // prevent this condition. Alternatively we could test all
  // inputs, but testing just this input minimizes the data
  // required to prove correct CHECKLOCKTIMEVERIFY execution.
  if (!this.tx.inputs[this.nin].isFinal()) {
    return false;
  }

  return true;
}

/** 
 * Based on the inner loop of bitcoind's EvalScript function
 * bitcoind commit: b5d1b1092998bc95313856d535c632ea5a8f9104
 */
Interpreter.prototype.step = function() {

  var fRequireMinimal = (this.flags & Interpreter.SCRIPT_VERIFY_MINIMALDATA) !== 0;

  //bool fExec = !count(vfExec.begin(), vfExec.end(), false);
  var fExec = (this.vfExec.indexOf(false) === -1);
  var buf, buf1, buf2, spliced, n, x1, x2, bn, bn1, bn2, bufSig, bufPubkey, subscript;
  var sig, pubkey;
  var fValue, fSuccess;

  // Read instruction
  var chunk = this.script.chunks[this.pc];
  this.pc++;
  var opcodenum = chunk.opcodenum;
  if (_.isUndefined(opcodenum)) {
    this.errstr = 'SCRIPT_ERR_UNDEFINED_OPCODE';
    return false;
  }
  if (chunk.buf && chunk.buf.length > Interpreter.MAX_SCRIPT_ELEMENT_SIZE) {
    this.errstr = 'SCRIPT_ERR_PUSH_SIZE';
    return false;
  }

  // Note how Opcode.OP_RESERVED does not count towards the opcode limit.
  if (opcodenum > Opcode.OP_16 && ++(this.nOpCount) > 201) {
    this.errstr = 'SCRIPT_ERR_OP_COUNT';
    return false;
  }


  if (opcodenum === Opcode.OP_CAT ||
    opcodenum === Opcode.OP_SUBSTR ||
    opcodenum === Opcode.OP_LEFT ||
    opcodenum === Opcode.OP_RIGHT ||
    opcodenum === Opcode.OP_INVERT ||
    opcodenum === Opcode.OP_AND ||
    opcodenum === Opcode.OP_OR ||
    opcodenum === Opcode.OP_XOR ||
    opcodenum === Opcode.OP_2MUL ||
    opcodenum === Opcode.OP_2DIV ||
    opcodenum === Opcode.OP_MUL ||
    opcodenum === Opcode.OP_DIV ||
    opcodenum === Opcode.OP_MOD ||
    opcodenum === Opcode.OP_LSHIFT ||
    opcodenum === Opcode.OP_RSHIFT) {
    this.errstr = 'SCRIPT_ERR_DISABLED_OPCODE';
    return false;
  }

  if (fExec && 0 <= opcodenum && opcodenum <= Opcode.OP_PUSHDATA4) {
    if (fRequireMinimal && !this.script.checkMinimalPush(this.pc - 1)) {
      this.errstr = 'SCRIPT_ERR_MINIMALDATA';
      return false;
    }
    if (!chunk.buf) {
      this.stack.push(Interpreter.false);
    } else if (chunk.len !== chunk.buf.length) {
      throw new Error('Length of push value not equal to length of data');
    } else {
      this.stack.push(chunk.buf);
    }
  } else if (fExec || (Opcode.OP_IF <= opcodenum && opcodenum <= Opcode.OP_ENDIF)) {
    switch (opcodenum) {
      // Push value
      case Opcode.OP_1NEGATE:
      case Opcode.OP_1:
      case Opcode.OP_2:
      case Opcode.OP_3:
      case Opcode.OP_4:
      case Opcode.OP_5:
      case Opcode.OP_6:
      case Opcode.OP_7:
      case Opcode.OP_8:
      case Opcode.OP_9:
      case Opcode.OP_10:
      case Opcode.OP_11:
      case Opcode.OP_12:
      case Opcode.OP_13:
      case Opcode.OP_14:
      case Opcode.OP_15:
      case Opcode.OP_16:
        {
          // ( -- value)
          // ScriptNum bn((int)opcode - (int)(Opcode.OP_1 - 1));
          n = opcodenum - (Opcode.OP_1 - 1);
          buf = new BN(n).toScriptNumBuffer();
          this.stack.push(buf);
          // The result of these opcodes should always be the minimal way to push the data
          // they push, so no need for a CheckMinimalPush here.
        }
        break;


        //
        // Control
        //
      case Opcode.OP_NOP:
        break;

      case Opcode.OP_NOP2:
      case Opcode.OP_CHECKLOCKTIMEVERIFY:

        if (!(this.flags & Interpreter.SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY)) {
          // not enabled; treat as a NOP2
          if (this.flags & Interpreter.SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS) {
            this.errstr = 'SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS';
            return false;
          }
          break;
        }

        if (this.stack.length < 1) {
          this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
          return false;
        }

        // Note that elsewhere numeric opcodes are limited to
        // operands in the range -2**31+1 to 2**31-1, however it is
        // legal for opcodes to produce results exceeding that
        // range. This limitation is implemented by CScriptNum's
        // default 4-byte limit.
        //
        // If we kept to that limit we'd have a year 2038 problem,
        // even though the nLockTime field in transactions
        // themselves is uint32 which only becomes meaningless
        // after the year 2106.
        //
        // Thus as a special case we tell CScriptNum to accept up
        // to 5-byte bignums, which are good until 2**39-1, well
        // beyond the 2**32-1 limit of the nLockTime field itself.
        var nLockTime = BN.fromScriptNumBuffer(this.stack[this.stack.length - 1], fRequireMinimal, 5);

        // In the rare event that the argument may be < 0 due to
        // some arithmetic being done first, you can always use
        // 0 MAX CHECKLOCKTIMEVERIFY.
        if (nLockTime.lt(new BN(0))) {
          this.errstr = 'SCRIPT_ERR_NEGATIVE_LOCKTIME';
          return false;
        }

        // Actually compare the specified lock time with the transaction.
        if (!this.checkLockTime(nLockTime)) {
          this.errstr = 'SCRIPT_ERR_UNSATISFIED_LOCKTIME';
          return false;
        }
        break;

      case Opcode.OP_NOP1:
      case Opcode.OP_NOP3:
      case Opcode.OP_NOP4:
      case Opcode.OP_NOP5:
      case Opcode.OP_NOP6:
      case Opcode.OP_NOP7:
      case Opcode.OP_NOP8:
      case Opcode.OP_NOP9:
      case Opcode.OP_NOP10:
        {
          if (this.flags & Interpreter.SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS) {
            this.errstr = 'SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS';
            return false;
          }
        }
        break;

      case Opcode.OP_IF:
      case Opcode.OP_NOTIF:
        {
          // <expression> if [statements] [else [statements]] endif
          // bool fValue = false;
          fValue = false;
          if (fExec) {
            if (this.stack.length < 1) {
              this.errstr = 'SCRIPT_ERR_UNBALANCED_CONDITIONAL';
              return false;
            }
            buf = this.stack.pop();
            fValue = Interpreter.castToBool(buf);
            if (opcodenum === Opcode.OP_NOTIF) {
              fValue = !fValue;
            }
          }
          this.vfExec.push(fValue);
        }
        break;

      case Opcode.OP_ELSE:
        {
          if (this.vfExec.length === 0) {
            this.errstr = 'SCRIPT_ERR_UNBALANCED_CONDITIONAL';
            return false;
          }
          this.vfExec[this.vfExec.length - 1] = !this.vfExec[this.vfExec.length - 1];
        }
        break;

      case Opcode.OP_ENDIF:
        {
          if (this.vfExec.length === 0) {
            this.errstr = 'SCRIPT_ERR_UNBALANCED_CONDITIONAL';
            return false;
          }
          this.vfExec.pop();
        }
        break;

      case Opcode.OP_VERIFY:
        {
          // (true -- ) or
          // (false -- false) and return
          if (this.stack.length < 1) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          buf = this.stack[this.stack.length - 1];
          fValue = Interpreter.castToBool(buf);
          if (fValue) {
            this.stack.pop();
          } else {
            this.errstr = 'SCRIPT_ERR_VERIFY';
            return false;
          }
        }
        break;

      case Opcode.OP_RETURN:
        {
          this.errstr = 'SCRIPT_ERR_OP_RETURN';
          return false;
        }
        break;


        //
        // Stack ops
        //
      case Opcode.OP_TOALTSTACK:
        {
          if (this.stack.length < 1) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          this.altstack.push(this.stack.pop());
        }
        break;

      case Opcode.OP_FROMALTSTACK:
        {
          if (this.altstack.length < 1) {
            this.errstr = 'SCRIPT_ERR_INVALID_ALTSTACK_OPERATION';
            return false;
          }
          this.stack.push(this.altstack.pop());
        }
        break;

      case Opcode.OP_2DROP:
        {
          // (x1 x2 -- )
          if (this.stack.length < 2) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          this.stack.pop();
          this.stack.pop();
        }
        break;

      case Opcode.OP_2DUP:
        {
          // (x1 x2 -- x1 x2 x1 x2)
          if (this.stack.length < 2) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          buf1 = this.stack[this.stack.length - 2];
          buf2 = this.stack[this.stack.length - 1];
          this.stack.push(buf1);
          this.stack.push(buf2);
        }
        break;

      case Opcode.OP_3DUP:
        {
          // (x1 x2 x3 -- x1 x2 x3 x1 x2 x3)
          if (this.stack.length < 3) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          buf1 = this.stack[this.stack.length - 3];
          buf2 = this.stack[this.stack.length - 2];
          var buf3 = this.stack[this.stack.length - 1];
          this.stack.push(buf1);
          this.stack.push(buf2);
          this.stack.push(buf3);
        }
        break;

      case Opcode.OP_2OVER:
        {
          // (x1 x2 x3 x4 -- x1 x2 x3 x4 x1 x2)
          if (this.stack.length < 4) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          buf1 = this.stack[this.stack.length - 4];
          buf2 = this.stack[this.stack.length - 3];
          this.stack.push(buf1);
          this.stack.push(buf2);
        }
        break;

      case Opcode.OP_2ROT:
        {
          // (x1 x2 x3 x4 x5 x6 -- x3 x4 x5 x6 x1 x2)
          if (this.stack.length < 6) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          spliced = this.stack.splice(this.stack.length - 6, 2);
          this.stack.push(spliced[0]);
          this.stack.push(spliced[1]);
        }
        break;

      case Opcode.OP_2SWAP:
        {
          // (x1 x2 x3 x4 -- x3 x4 x1 x2)
          if (this.stack.length < 4) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          spliced = this.stack.splice(this.stack.length - 4, 2);
          this.stack.push(spliced[0]);
          this.stack.push(spliced[1]);
        }
        break;

      case Opcode.OP_IFDUP:
        {
          // (x - 0 | x x)
          if (this.stack.length < 1) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          buf = this.stack[this.stack.length - 1];
          fValue = Interpreter.castToBool(buf);
          if (fValue) {
            this.stack.push(buf);
          }
        }
        break;

      case Opcode.OP_DEPTH:
        {
          // -- stacksize
          buf = new BN(this.stack.length).toScriptNumBuffer();
          this.stack.push(buf);
        }
        break;

      case Opcode.OP_DROP:
        {
          // (x -- )
          if (this.stack.length < 1) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          this.stack.pop();
        }
        break;

      case Opcode.OP_DUP:
        {
          // (x -- x x)
          if (this.stack.length < 1) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          this.stack.push(this.stack[this.stack.length - 1]);
        }
        break;

      case Opcode.OP_NIP:
        {
          // (x1 x2 -- x2)
          if (this.stack.length < 2) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          this.stack.splice(this.stack.length - 2, 1);
        }
        break;

      case Opcode.OP_OVER:
        {
          // (x1 x2 -- x1 x2 x1)
          if (this.stack.length < 2) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          this.stack.push(this.stack[this.stack.length - 2]);
        }
        break;

      case Opcode.OP_PICK:
      case Opcode.OP_ROLL:
        {
          // (xn ... x2 x1 x0 n - xn ... x2 x1 x0 xn)
          // (xn ... x2 x1 x0 n - ... x2 x1 x0 xn)
          if (this.stack.length < 2) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          buf = this.stack[this.stack.length - 1];
          bn = BN.fromScriptNumBuffer(buf, fRequireMinimal);
          n = bn.toNumber();
          this.stack.pop();
          if (n < 0 || n >= this.stack.length) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          buf = this.stack[this.stack.length - n - 1];
          if (opcodenum === Opcode.OP_ROLL) {
            this.stack.splice(this.stack.length - n - 1, 1);
          }
          this.stack.push(buf);
        }
        break;

      case Opcode.OP_ROT:
        {
          // (x1 x2 x3 -- x2 x3 x1)
          //  x2 x1 x3  after first swap
          //  x2 x3 x1  after second swap
          if (this.stack.length < 3) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          x1 = this.stack[this.stack.length - 3];
          x2 = this.stack[this.stack.length - 2];
          var x3 = this.stack[this.stack.length - 1];
          this.stack[this.stack.length - 3] = x2;
          this.stack[this.stack.length - 2] = x3;
          this.stack[this.stack.length - 1] = x1;
        }
        break;

      case Opcode.OP_SWAP:
        {
          // (x1 x2 -- x2 x1)
          if (this.stack.length < 2) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          x1 = this.stack[this.stack.length - 2];
          x2 = this.stack[this.stack.length - 1];
          this.stack[this.stack.length - 2] = x2;
          this.stack[this.stack.length - 1] = x1;
        }
        break;

      case Opcode.OP_TUCK:
        {
          // (x1 x2 -- x2 x1 x2)
          if (this.stack.length < 2) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          this.stack.splice(this.stack.length - 2, 0, this.stack[this.stack.length - 1]);
        }
        break;


      case Opcode.OP_SIZE:
        {
          // (in -- in size)
          if (this.stack.length < 1) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          bn = new BN(this.stack[this.stack.length - 1].length);
          this.stack.push(bn.toScriptNumBuffer());
        }
        break;


        //
        // Bitwise logic
        //
      case Opcode.OP_EQUAL:
      case Opcode.OP_EQUALVERIFY:
        //case Opcode.OP_NOTEQUAL: // use Opcode.OP_NUMNOTEQUAL
        {
          // (x1 x2 - bool)
          if (this.stack.length < 2) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          buf1 = this.stack[this.stack.length - 2];
          buf2 = this.stack[this.stack.length - 1];
          var fEqual = buf1.toString('hex') === buf2.toString('hex');
          this.stack.pop();
          this.stack.pop();
          this.stack.push(fEqual ? Interpreter.true : Interpreter.false);
          if (opcodenum === Opcode.OP_EQUALVERIFY) {
            if (fEqual) {
              this.stack.pop();
            } else {
              this.errstr = 'SCRIPT_ERR_EQUALVERIFY';
              return false;
            }
          }
        }
        break;


        //
        // Numeric
        //
      case Opcode.OP_1ADD:
      case Opcode.OP_1SUB:
      case Opcode.OP_NEGATE:
      case Opcode.OP_ABS:
      case Opcode.OP_NOT:
      case Opcode.OP_0NOTEQUAL:
        {
          // (in -- out)
          if (this.stack.length < 1) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          buf = this.stack[this.stack.length - 1];
          bn = BN.fromScriptNumBuffer(buf, fRequireMinimal);
          switch (opcodenum) {
            case Opcode.OP_1ADD:
              bn = bn.add(BN.One);
              break;
            case Opcode.OP_1SUB:
              bn = bn.sub(BN.One);
              break;
            case Opcode.OP_NEGATE:
              bn = bn.neg();
              break;
            case Opcode.OP_ABS:
              if (bn.cmp(BN.Zero) < 0) {
                bn = bn.neg();
              }
              break;
            case Opcode.OP_NOT:
              bn = new BN((bn.cmp(BN.Zero) === 0) + 0);
              break;
            case Opcode.OP_0NOTEQUAL:
              bn = new BN((bn.cmp(BN.Zero) !== 0) + 0);
              break;
              //default:      assert(!'invalid opcode'); break; // TODO: does this ever occur?
          }
          this.stack.pop();
          this.stack.push(bn.toScriptNumBuffer());
        }
        break;

      case Opcode.OP_ADD:
      case Opcode.OP_SUB:
      case Opcode.OP_BOOLAND:
      case Opcode.OP_BOOLOR:
      case Opcode.OP_NUMEQUAL:
      case Opcode.OP_NUMEQUALVERIFY:
      case Opcode.OP_NUMNOTEQUAL:
      case Opcode.OP_LESSTHAN:
      case Opcode.OP_GREATERTHAN:
      case Opcode.OP_LESSTHANOREQUAL:
      case Opcode.OP_GREATERTHANOREQUAL:
      case Opcode.OP_MIN:
      case Opcode.OP_MAX:
        {
          // (x1 x2 -- out)
          if (this.stack.length < 2) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          bn1 = BN.fromScriptNumBuffer(this.stack[this.stack.length - 2], fRequireMinimal);
          bn2 = BN.fromScriptNumBuffer(this.stack[this.stack.length - 1], fRequireMinimal);
          bn = new BN(0);

          switch (opcodenum) {
            case Opcode.OP_ADD:
              bn = bn1.add(bn2);
              break;

            case Opcode.OP_SUB:
              bn = bn1.sub(bn2);
              break;

              // case Opcode.OP_BOOLAND:       bn = (bn1 != bnZero && bn2 != bnZero); break;
            case Opcode.OP_BOOLAND:
              bn = new BN(((bn1.cmp(BN.Zero) !== 0) && (bn2.cmp(BN.Zero) !== 0)) + 0);
              break;
              // case Opcode.OP_BOOLOR:        bn = (bn1 != bnZero || bn2 != bnZero); break;
            case Opcode.OP_BOOLOR:
              bn = new BN(((bn1.cmp(BN.Zero) !== 0) || (bn2.cmp(BN.Zero) !== 0)) + 0);
              break;
              // case Opcode.OP_NUMEQUAL:      bn = (bn1 == bn2); break;
            case Opcode.OP_NUMEQUAL:
              bn = new BN((bn1.cmp(bn2) === 0) + 0);
              break;
              // case Opcode.OP_NUMEQUALVERIFY:    bn = (bn1 == bn2); break;
            case Opcode.OP_NUMEQUALVERIFY:
              bn = new BN((bn1.cmp(bn2) === 0) + 0);
              break;
              // case Opcode.OP_NUMNOTEQUAL:     bn = (bn1 != bn2); break;
            case Opcode.OP_NUMNOTEQUAL:
              bn = new BN((bn1.cmp(bn2) !== 0) + 0);
              break;
              // case Opcode.OP_LESSTHAN:      bn = (bn1 < bn2); break;
            case Opcode.OP_LESSTHAN:
              bn = new BN((bn1.cmp(bn2) < 0) + 0);
              break;
              // case Opcode.OP_GREATERTHAN:     bn = (bn1 > bn2); break;
            case Opcode.OP_GREATERTHAN:
              bn = new BN((bn1.cmp(bn2) > 0) + 0);
              break;
              // case Opcode.OP_LESSTHANOREQUAL:   bn = (bn1 <= bn2); break;
            case Opcode.OP_LESSTHANOREQUAL:
              bn = new BN((bn1.cmp(bn2) <= 0) + 0);
              break;
              // case Opcode.OP_GREATERTHANOREQUAL:  bn = (bn1 >= bn2); break;
            case Opcode.OP_GREATERTHANOREQUAL:
              bn = new BN((bn1.cmp(bn2) >= 0) + 0);
              break;
            case Opcode.OP_MIN:
              bn = (bn1.cmp(bn2) < 0 ? bn1 : bn2);
              break;
            case Opcode.OP_MAX:
              bn = (bn1.cmp(bn2) > 0 ? bn1 : bn2);
              break;
              // default:           assert(!'invalid opcode'); break; //TODO: does this ever occur?
          }
          this.stack.pop();
          this.stack.pop();
          this.stack.push(bn.toScriptNumBuffer());

          if (opcodenum === Opcode.OP_NUMEQUALVERIFY) {
            // if (CastToBool(stacktop(-1)))
            if (Interpreter.castToBool(this.stack[this.stack.length - 1])) {
              this.stack.pop();
            } else {
              this.errstr = 'SCRIPT_ERR_NUMEQUALVERIFY';
              return false;
            }
          }
        }
        break;

      case Opcode.OP_WITHIN:
        {
          // (x min max -- out)
          if (this.stack.length < 3) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          bn1 = BN.fromScriptNumBuffer(this.stack[this.stack.length - 3], fRequireMinimal);
          bn2 = BN.fromScriptNumBuffer(this.stack[this.stack.length - 2], fRequireMinimal);
          var bn3 = BN.fromScriptNumBuffer(this.stack[this.stack.length - 1], fRequireMinimal);
          //bool fValue = (bn2 <= bn1 && bn1 < bn3);
          fValue = (bn2.cmp(bn1) <= 0) && (bn1.cmp(bn3) < 0);
          this.stack.pop();
          this.stack.pop();
          this.stack.pop();
          this.stack.push(fValue ? Interpreter.true : Interpreter.false);
        }
        break;


        //
        // Crypto
        //
      case Opcode.OP_RIPEMD160:
      case Opcode.OP_SHA1:
      case Opcode.OP_SHA256:
      case Opcode.OP_HASH160:
      case Opcode.OP_HASH256:
        {
          // (in -- hash)
          if (this.stack.length < 1) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          buf = this.stack[this.stack.length - 1];
          //valtype vchHash((opcode == Opcode.OP_RIPEMD160 ||
          //                 opcode == Opcode.OP_SHA1 || opcode == Opcode.OP_HASH160) ? 20 : 32);
          var bufHash;
          if (opcodenum === Opcode.OP_RIPEMD160) {
            bufHash = Hash.ripemd160(buf);
          } else if (opcodenum === Opcode.OP_SHA1) {
            bufHash = Hash.sha1(buf);
          } else if (opcodenum === Opcode.OP_SHA256) {
            bufHash = Hash.sha256(buf);
          } else if (opcodenum === Opcode.OP_HASH160) {
            bufHash = Hash.sha256ripemd160(buf);
          } else if (opcodenum === Opcode.OP_HASH256) {
            bufHash = Hash.sha256sha256(buf);
          }
          this.stack.pop();
          this.stack.push(bufHash);
        }
        break;

      case Opcode.OP_CODESEPARATOR:
        {
          // Hash starts after the code separator
          this.pbegincodehash = this.pc;
        }
        break;

      case Opcode.OP_CHECKSIG:
      case Opcode.OP_CHECKSIGVERIFY:
        {
          // (sig pubkey -- bool)
          if (this.stack.length < 2) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }

          bufSig = this.stack[this.stack.length - 2];
          bufPubkey = this.stack[this.stack.length - 1];

          // Subset of script starting at the most recent codeseparator
          // CScript scriptCode(pbegincodehash, pend);
          subscript = new Script().set({
            chunks: this.script.chunks.slice(this.pbegincodehash)
          });

          // Drop the signature, since there's no way for a signature to sign itself
          var tmpScript = new Script().add(bufSig);
          subscript.findAndDelete(tmpScript);

          if (!this.checkSignatureEncoding(bufSig) || !this.checkPubkeyEncoding(bufPubkey)) {
            return false;
          }

          try {
            sig = Signature.fromTxFormat(bufSig);
            pubkey = PublicKey.fromBuffer(bufPubkey, false);
            fSuccess = this.tx.verifySignature(sig, pubkey, this.nin, subscript);
          } catch (e) {
            //invalid sig or pubkey
            fSuccess = false;
          }

          this.stack.pop();
          this.stack.pop();
          // stack.push_back(fSuccess ? vchTrue : vchFalse);
          this.stack.push(fSuccess ? Interpreter.true : Interpreter.false);
          if (opcodenum === Opcode.OP_CHECKSIGVERIFY) {
            if (fSuccess) {
              this.stack.pop();
            } else {
              this.errstr = 'SCRIPT_ERR_CHECKSIGVERIFY';
              return false;
            }
          }
        }
        break;

      case Opcode.OP_CHECKMULTISIG:
      case Opcode.OP_CHECKMULTISIGVERIFY:
        {
          // ([sig ...] num_of_signatures [pubkey ...] num_of_pubkeys -- bool)

          var i = 1;
          if (this.stack.length < i) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }

          var nKeysCount = BN.fromScriptNumBuffer(this.stack[this.stack.length - i], fRequireMinimal).toNumber();
          if (nKeysCount < 0 || nKeysCount > 20) {
            this.errstr = 'SCRIPT_ERR_PUBKEY_COUNT';
            return false;
          }
          this.nOpCount += nKeysCount;
          if (this.nOpCount > 201) {
            this.errstr = 'SCRIPT_ERR_OP_COUNT';
            return false;
          }
          // int ikey = ++i;
          var ikey = ++i;
          i += nKeysCount;
          if (this.stack.length < i) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }

          var nSigsCount = BN.fromScriptNumBuffer(this.stack[this.stack.length - i], fRequireMinimal).toNumber();
          if (nSigsCount < 0 || nSigsCount > nKeysCount) {
            this.errstr = 'SCRIPT_ERR_SIG_COUNT';
            return false;
          }
          // int isig = ++i;
          var isig = ++i;
          i += nSigsCount;
          if (this.stack.length < i) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }

          // Subset of script starting at the most recent codeseparator
          subscript = new Script().set({
            chunks: this.script.chunks.slice(this.pbegincodehash)
          });

          // Drop the signatures, since there's no way for a signature to sign itself
          for (var k = 0; k < nSigsCount; k++) {
            bufSig = this.stack[this.stack.length - isig - k];
            subscript.findAndDelete(new Script().add(bufSig));
          }

          fSuccess = true;
          while (fSuccess && nSigsCount > 0) {
            // valtype& vchSig  = stacktop(-isig);
            bufSig = this.stack[this.stack.length - isig];
            // valtype& vchPubKey = stacktop(-ikey);
            bufPubkey = this.stack[this.stack.length - ikey];

            if (!this.checkSignatureEncoding(bufSig) || !this.checkPubkeyEncoding(bufPubkey)) {
              return false;
            }

            var fOk;
            try {
              sig = Signature.fromTxFormat(bufSig);
              pubkey = PublicKey.fromBuffer(bufPubkey, false);
              fOk = this.tx.verifySignature(sig, pubkey, this.nin, subscript);
            } catch (e) {
              //invalid sig or pubkey
              fOk = false;
            }

            if (fOk) {
              isig++;
              nSigsCount--;
            }
            ikey++;
            nKeysCount--;

            // If there are more signatures left than keys left,
            // then too many signatures have failed
            if (nSigsCount > nKeysCount) {
              fSuccess = false;
            }
          }

          // Clean up stack of actual arguments
          while (i-- > 1) {
            this.stack.pop();
          }

          // A bug causes CHECKMULTISIG to consume one extra argument
          // whose contents were not checked in any way.
          //
          // Unfortunately this is a potential source of mutability,
          // so optionally verify it is exactly equal to zero prior
          // to removing it from the stack.
          if (this.stack.length < 1) {
            this.errstr = 'SCRIPT_ERR_INVALID_STACK_OPERATION';
            return false;
          }
          if ((this.flags & Interpreter.SCRIPT_VERIFY_NULLDUMMY) && this.stack[this.stack.length - 1].length) {
            this.errstr = 'SCRIPT_ERR_SIG_NULLDUMMY';
            return false;
          }
          this.stack.pop();

          this.stack.push(fSuccess ? Interpreter.true : Interpreter.false);

          if (opcodenum === Opcode.OP_CHECKMULTISIGVERIFY) {
            if (fSuccess) {
              this.stack.pop();
            } else {
              this.errstr = 'SCRIPT_ERR_CHECKMULTISIGVERIFY';
              return false;
            }
          }
        }
        break;

      default:
        this.errstr = 'SCRIPT_ERR_BAD_OPCODE';
        return false;
    }
  }

  return true;
};


}).call(this,require("buffer").Buffer)
},{"../crypto/bn":6,"../crypto/hash":8,"../crypto/signature":11,"../opcode":26,"../publickey":28,"../transaction":32,"./script":31,"buffer":95,"lodash":142}],31:[function(require,module,exports){
(function (Buffer){
'use strict';

var Address = require('../address');
var BufferReader = require('../encoding/bufferreader');
var BufferWriter = require('../encoding/bufferwriter');
var Hash = require('../crypto/hash');
var Opcode = require('../opcode');
var PublicKey = require('../publickey');
var Signature = require('../crypto/signature');
var Networks = require('../networks');
var $ = require('../util/preconditions');
var _ = require('lodash');
var errors = require('../errors');
var buffer = require('buffer');
var BufferUtil = require('../util/buffer');
var JSUtil = require('../util/js');

/**
 * A bitcoin transaction script. Each transaction's inputs and outputs
 * has a script that is evaluated to validate it's spending.
 *
 * See https://en.bitcoin.it/wiki/Script
 *
 * @constructor
 * @param {Object|string|Buffer=} from optional data to populate script
 */
var Script = function Script(from) {
  if (!(this instanceof Script)) {
    return new Script(from);
  }
  this.chunks = [];

  if (BufferUtil.isBuffer(from)) {
    return Script.fromBuffer(from);
  } else if (from instanceof Address) {
    return Script.fromAddress(from);
  } else if (from instanceof Script) {
    return Script.fromBuffer(from.toBuffer());
  } else if (typeof from === 'string') {
    return Script.fromString(from);
  } else if (typeof from !== 'undefined') {
    this.set(from);
  }
};

Script.prototype.set = function(obj) {
  this.chunks = obj.chunks || this.chunks;
  return this;
};

Script.fromBuffer = function(buffer) {
  var script = new Script();
  script.chunks = [];

  var br = new BufferReader(buffer);
  while (!br.finished()) {
    try {
      var opcodenum = br.readUInt8();

      var len, buf;
      if (opcodenum > 0 && opcodenum < Opcode.OP_PUSHDATA1) {
        len = opcodenum;
        script.chunks.push({
          buf: br.read(len),
          len: len,
          opcodenum: opcodenum
        });
      } else if (opcodenum === Opcode.OP_PUSHDATA1) {
        len = br.readUInt8();
        buf = br.read(len);
        script.chunks.push({
          buf: buf,
          len: len,
          opcodenum: opcodenum
        });
      } else if (opcodenum === Opcode.OP_PUSHDATA2) {
        len = br.readUInt16LE();
        buf = br.read(len);
        script.chunks.push({
          buf: buf,
          len: len,
          opcodenum: opcodenum
        });
      } else if (opcodenum === Opcode.OP_PUSHDATA4) {
        len = br.readUInt32LE();
        buf = br.read(len);
        script.chunks.push({
          buf: buf,
          len: len,
          opcodenum: opcodenum
        });
      } else {
        script.chunks.push({
          opcodenum: opcodenum
        });
      }
    } catch (e) {
      if (e instanceof RangeError) {
        throw new errors.Script.InvalidBuffer(buffer.toString('hex'));
      }
      throw e;
    }
  }

  return script;
};

Script.prototype.toBuffer = function() {
  var bw = new BufferWriter();

  for (var i = 0; i < this.chunks.length; i++) {
    var chunk = this.chunks[i];
    var opcodenum = chunk.opcodenum;
    bw.writeUInt8(chunk.opcodenum);
    if (chunk.buf) {
      if (opcodenum < Opcode.OP_PUSHDATA1) {
        bw.write(chunk.buf);
      } else if (opcodenum === Opcode.OP_PUSHDATA1) {
        bw.writeUInt8(chunk.len);
        bw.write(chunk.buf);
      } else if (opcodenum === Opcode.OP_PUSHDATA2) {
        bw.writeUInt16LE(chunk.len);
        bw.write(chunk.buf);
      } else if (opcodenum === Opcode.OP_PUSHDATA4) {
        bw.writeUInt32LE(chunk.len);
        bw.write(chunk.buf);
      }
    }
  }

  return bw.concat();
};

Script.fromASM = function(str) {
  var script = new Script();
  script.chunks = [];

  var tokens = str.split(' ');
  var i = 0;
  while (i < tokens.length) {
    var token = tokens[i];
    var opcode = Opcode(token);
    var opcodenum = opcode.toNumber();

    if (_.isUndefined(opcodenum)) {
      var buf = new Buffer(tokens[i], 'hex');
      script.chunks.push({
        buf: buf,
        len: buf.length,
        opcodenum: buf.length
      });
      i = i + 1;
    } else if (opcodenum === Opcode.OP_PUSHDATA1 ||
      opcodenum === Opcode.OP_PUSHDATA2 ||
      opcodenum === Opcode.OP_PUSHDATA4) {
      script.chunks.push({
        buf: new Buffer(tokens[i + 2], 'hex'),
        len: parseInt(tokens[i + 1]),
        opcodenum: opcodenum
      });
      i = i + 3;
    } else {
      script.chunks.push({
        opcodenum: opcodenum
      });
      i = i + 1;
    }
  }
  return script;
};

Script.fromHex = function(str) {
  return new Script(new buffer.Buffer(str, 'hex'));
};

Script.fromString = function(str) {
  if (JSUtil.isHexa(str) || str.length === 0) {
    return new Script(new buffer.Buffer(str, 'hex'));
  }
  var script = new Script();
  script.chunks = [];

  var tokens = str.split(' ');
  var i = 0;
  while (i < tokens.length) {
    var token = tokens[i];
    var opcode = Opcode(token);
    var opcodenum = opcode.toNumber();

    if (_.isUndefined(opcodenum)) {
      opcodenum = parseInt(token);
      if (opcodenum > 0 && opcodenum < Opcode.OP_PUSHDATA1) {
        script.chunks.push({
          buf: new Buffer(tokens[i + 1].slice(2), 'hex'),
          len: opcodenum,
          opcodenum: opcodenum
        });
        i = i + 2;
      } else {
        throw new Error('Invalid script: ' + JSON.stringify(str));
      }
    } else if (opcodenum === Opcode.OP_PUSHDATA1 ||
      opcodenum === Opcode.OP_PUSHDATA2 ||
      opcodenum === Opcode.OP_PUSHDATA4) {
      if (tokens[i + 2].slice(0, 2) !== '0x') {
        throw new Error('Pushdata data must start with 0x');
      }
      script.chunks.push({
        buf: new Buffer(tokens[i + 2].slice(2), 'hex'),
        len: parseInt(tokens[i + 1]),
        opcodenum: opcodenum
      });
      i = i + 3;
    } else {
      script.chunks.push({
        opcodenum: opcodenum
      });
      i = i + 1;
    }
  }
  return script;
};

Script.prototype._chunkToString = function(chunk, type) {
  var opcodenum = chunk.opcodenum;
  var asm = (type === 'asm');
  var str = '';
  if (!chunk.buf) {
    // no data chunk
    if (typeof Opcode.reverseMap[opcodenum] !== 'undefined') {
      str = str + ' ' + Opcode(opcodenum).toString();
    } else {
      var numstr = opcodenum.toString(16);
      if (numstr.length % 2 !== 0) {
        numstr = '0' + numstr;
      }
      if (asm) {
        str = str + ' ' + numstr;
      } else {
        str = str + ' ' + '0x' + numstr;
      }
    }
  } else {
    // data chunk
    if (opcodenum === Opcode.OP_PUSHDATA1 ||
      opcodenum === Opcode.OP_PUSHDATA2 ||
      opcodenum === Opcode.OP_PUSHDATA4) {
      str = str + ' ' + Opcode(opcodenum).toString();
    }
    if (chunk.len > 0) {
      if (asm) {
        str = str + ' ' + chunk.buf.toString('hex');
      } else {
        str = str + ' ' + chunk.len + ' ' + '0x' + chunk.buf.toString('hex');
      }
    }
  }
  return str;
};

Script.prototype.toASM = function() {
  var str = '';
  for (var i = 0; i < this.chunks.length; i++) {
    var chunk = this.chunks[i];
    str += this._chunkToString(chunk, 'asm');
  }

  return str.substr(1);
};

Script.prototype.toString = function() {
  var str = '';
  for (var i = 0; i < this.chunks.length; i++) {
    var chunk = this.chunks[i];
    str += this._chunkToString(chunk);
  }

  return str.substr(1);
};

Script.prototype.toHex = function() {
  return this.toBuffer().toString('hex');
};

Script.prototype.inspect = function() {
  return '<Script: ' + this.toString() + '>';
};

// script classification methods

/**
 * @returns {boolean} if this is a pay to pubkey hash output script
 */
Script.prototype.isPublicKeyHashOut = function() {
  return !!(this.chunks.length === 5 &&
    this.chunks[0].opcodenum === Opcode.OP_DUP &&
    this.chunks[1].opcodenum === Opcode.OP_HASH160 &&
    this.chunks[2].buf &&
    this.chunks[2].buf.length === 20 &&
    this.chunks[3].opcodenum === Opcode.OP_EQUALVERIFY &&
    this.chunks[4].opcodenum === Opcode.OP_CHECKSIG);
};

/**
 * @returns {boolean} if this is a pay to public key hash input script
 */
Script.prototype.isPublicKeyHashIn = function() {
  if (this.chunks.length === 2) {
    var signatureBuf = this.chunks[0].buf;
    var pubkeyBuf = this.chunks[1].buf;
    if (signatureBuf &&
        signatureBuf.length &&
        signatureBuf[0] === 0x30 &&
        pubkeyBuf &&
        pubkeyBuf.length
       ) {
      var version = pubkeyBuf[0];
      if ((version === 0x04 ||
           version === 0x06 ||
           version === 0x07) && pubkeyBuf.length === 65) {
        return true;
      } else if ((version === 0x03 || version === 0x02) && pubkeyBuf.length === 33) {
        return true;
      }
    }
  }
  return false;
};

Script.prototype.getPublicKey = function() {
  $.checkState(this.isPublicKeyOut(), 'Can\'t retreive PublicKey from a non-PK output');
  return this.chunks[0].buf;
};

Script.prototype.getPublicKeyHash = function() {
  $.checkState(this.isPublicKeyHashOut(), 'Can\'t retrieve PublicKeyHash from a non-PKH output');
  return this.chunks[2].buf;
};

/**
 * @returns {boolean} if this is a public key output script
 */
Script.prototype.isPublicKeyOut = function() {
  if (this.chunks.length === 2 &&
      this.chunks[0].buf &&
      this.chunks[0].buf.length &&
      this.chunks[1].opcodenum === Opcode.OP_CHECKSIG) {
    var pubkeyBuf = this.chunks[0].buf;
    var version = pubkeyBuf[0];
    var isVersion = false;
    if ((version === 0x04 ||
         version === 0x06 ||
         version === 0x07) && pubkeyBuf.length === 65) {
      isVersion = true;
    } else if ((version === 0x03 || version === 0x02) && pubkeyBuf.length === 33) {
      isVersion = true;
    }
    if (isVersion) {
      return PublicKey.isValid(pubkeyBuf);
    }
  }
  return false;
};

/**
 * @returns {boolean} if this is a pay to public key input script
 */
Script.prototype.isPublicKeyIn = function() {
  if (this.chunks.length === 1) {
    var signatureBuf = this.chunks[0].buf;
    if (signatureBuf &&
        signatureBuf.length &&
        signatureBuf[0] === 0x30) {
      return true;
    }
  }
  return false;
};

/**
 * @returns {boolean} if this is a p2sh output script
 */
Script.prototype.isScriptHashOut = function() {
  var buf = this.toBuffer();
  return (buf.length === 23 &&
    buf[0] === Opcode.OP_HASH160 &&
    buf[1] === 0x14 &&
    buf[buf.length - 1] === Opcode.OP_EQUAL);
};

/**
 * @returns {boolean} if this is a p2sh input script
 * Note that these are frequently indistinguishable from pubkeyhashin
 */
Script.prototype.isScriptHashIn = function() {
  if (this.chunks.length <= 1) {
    return false;
  }
  var redeemChunk = this.chunks[this.chunks.length - 1];
  var redeemBuf = redeemChunk.buf;
  if (!redeemBuf) {
    return false;
  }

  var redeemScript;
  try {
    redeemScript = Script.fromBuffer(redeemBuf);
  } catch (e) {
    if (e instanceof errors.Script.InvalidBuffer) {
      return false;
    }
    throw e;
  }
  var type = redeemScript.classify();
  return type !== Script.types.UNKNOWN;
};

/**
 * @returns {boolean} if this is a mutlsig output script
 */
Script.prototype.isMultisigOut = function() {
  return (this.chunks.length > 3 &&
    Opcode.isSmallIntOp(this.chunks[0].opcodenum) &&
    this.chunks.slice(1, this.chunks.length - 2).every(function(obj) {
      return obj.buf && BufferUtil.isBuffer(obj.buf);
    }) &&
    Opcode.isSmallIntOp(this.chunks[this.chunks.length - 2].opcodenum) &&
    this.chunks[this.chunks.length - 1].opcodenum === Opcode.OP_CHECKMULTISIG);
};


/**
 * @returns {boolean} if this is a multisig input script
 */
Script.prototype.isMultisigIn = function() {
  return this.chunks.length >= 2 &&
    this.chunks[0].opcodenum === 0 &&
    this.chunks.slice(1, this.chunks.length).every(function(obj) {
      return obj.buf &&
        BufferUtil.isBuffer(obj.buf) &&
        Signature.isTxDER(obj.buf);
    });
};

/**
 * @returns {boolean} true if this is a valid standard OP_RETURN output
 */
Script.prototype.isDataOut = function() {
  return this.chunks.length >= 1 &&
    this.chunks[0].opcodenum === Opcode.OP_RETURN &&
    (this.chunks.length === 1 ||
      (this.chunks.length === 2 &&
        this.chunks[1].buf &&
        this.chunks[1].buf.length <= Script.OP_RETURN_STANDARD_SIZE &&
        this.chunks[1].length === this.chunks.len));
};

/**
 * Retrieve the associated data for this script.
 * In the case of a pay to public key hash or P2SH, return the hash.
 * In the case of a standard OP_RETURN, return the data
 * @returns {Buffer}
 */
Script.prototype.getData = function() {
  if (this.isDataOut() || this.isScriptHashOut()) {
    if (_.isUndefined(this.chunks[1])) {
      return new Buffer(0);
    } else {
      return new Buffer(this.chunks[1].buf);
    }
  }
  if (this.isPublicKeyHashOut()) {
    return new Buffer(this.chunks[2].buf);
  }
  throw new Error('Unrecognized script type to get data from');
};

/**
 * @returns {boolean} if the script is only composed of data pushing
 * opcodes or small int opcodes (OP_0, OP_1, ..., OP_16)
 */
Script.prototype.isPushOnly = function() {
  return _.every(this.chunks, function(chunk) {
    return chunk.opcodenum <= Opcode.OP_16;
  });
};


Script.types = {};
Script.types.UNKNOWN = 'Unknown';
Script.types.PUBKEY_OUT = 'Pay to public key';
Script.types.PUBKEY_IN = 'Spend from public key';
Script.types.PUBKEYHASH_OUT = 'Pay to public key hash';
Script.types.PUBKEYHASH_IN = 'Spend from public key hash';
Script.types.SCRIPTHASH_OUT = 'Pay to script hash';
Script.types.SCRIPTHASH_IN = 'Spend from script hash';
Script.types.MULTISIG_OUT = 'Pay to multisig';
Script.types.MULTISIG_IN = 'Spend from multisig';
Script.types.DATA_OUT = 'Data push';

Script.OP_RETURN_STANDARD_SIZE = 80;

/**
 * @returns {object} The Script type if it is a known form,
 * or Script.UNKNOWN if it isn't
 */
Script.prototype.classify = function() {
  if (this._isInput) {
    return this.classifyInput();
  } else if (this._isOutput) {
    return this.classifyOutput();
  } else {
    var outputType = this.classifyOutput();
    return outputType != Script.types.UNKNOWN ? outputType : this.classifyInput();
  }
};

Script.outputIdentifiers = {};
Script.outputIdentifiers.PUBKEY_OUT = Script.prototype.isPublicKeyOut;
Script.outputIdentifiers.PUBKEYHASH_OUT = Script.prototype.isPublicKeyHashOut;
Script.outputIdentifiers.MULTISIG_OUT = Script.prototype.isMultisigOut;
Script.outputIdentifiers.SCRIPTHASH_OUT = Script.prototype.isScriptHashOut;
Script.outputIdentifiers.DATA_OUT = Script.prototype.isDataOut;

/**
 * @returns {object} The Script type if it is a known form,
 * or Script.UNKNOWN if it isn't
 */
Script.prototype.classifyOutput = function() {
  for (var type in Script.outputIdentifiers) {
    if (Script.outputIdentifiers[type].bind(this)()) {
      return Script.types[type];
    }
  }
  return Script.types.UNKNOWN;
};

Script.inputIdentifiers = {};
Script.inputIdentifiers.PUBKEY_IN = Script.prototype.isPublicKeyIn;
Script.inputIdentifiers.PUBKEYHASH_IN = Script.prototype.isPublicKeyHashIn;
Script.inputIdentifiers.MULTISIG_IN = Script.prototype.isMultisigIn;
Script.inputIdentifiers.SCRIPTHASH_IN = Script.prototype.isScriptHashIn;

/**
 * @returns {object} The Script type if it is a known form,
 * or Script.UNKNOWN if it isn't
 */
Script.prototype.classifyInput = function() {
  for (var type in Script.inputIdentifiers) {
    if (Script.inputIdentifiers[type].bind(this)()) {
      return Script.types[type];
    }
  }
  return Script.types.UNKNOWN;
};


/**
 * @returns {boolean} if script is one of the known types
 */
Script.prototype.isStandard = function() {
  // TODO: Add BIP62 compliance
  return this.classify() !== Script.types.UNKNOWN;
};


// Script construction methods

/**
 * Adds a script element at the start of the script.
 * @param {*} obj a string, number, Opcode, Buffer, or object to add
 * @returns {Script} this script instance
 */
Script.prototype.prepend = function(obj) {
  this._addByType(obj, true);
  return this;
};

/**
 * Compares a script with another script
 */
Script.prototype.equals = function(script) {
  $.checkState(script instanceof Script, 'Must provide another script');
  if (this.chunks.length !== script.chunks.length) {
    return false;
  }
  var i;
  for (i = 0; i < this.chunks.length; i++) {
    if (BufferUtil.isBuffer(this.chunks[i].buf) && !BufferUtil.isBuffer(script.chunks[i].buf)) {
      return false;
    }
    if (BufferUtil.isBuffer(this.chunks[i].buf) && !BufferUtil.equals(this.chunks[i].buf, script.chunks[i].buf)) {
      return false;
    } else if (this.chunks[i].opcodenum !== script.chunks[i].opcodenum) {
      return false;
    }
  }
  return true;
};

/**
 * Adds a script element to the end of the script.
 *
 * @param {*} obj a string, number, Opcode, Buffer, or object to add
 * @returns {Script} this script instance
 *
 */
Script.prototype.add = function(obj) {
  this._addByType(obj, false);
  return this;
};

Script.prototype._addByType = function(obj, prepend) {
  if (typeof obj === 'string') {
    this._addOpcode(obj, prepend);
  } else if (typeof obj === 'number') {
    this._addOpcode(obj, prepend);
  } else if (obj instanceof Opcode) {
    this._addOpcode(obj, prepend);
  } else if (BufferUtil.isBuffer(obj)) {
    this._addBuffer(obj, prepend);
  } else if (obj instanceof Script) {
    this.chunks = this.chunks.concat(obj.chunks);
  } else if (typeof obj === 'object') {
    this._insertAtPosition(obj, prepend);
  } else {
    throw new Error('Invalid script chunk');
  }
};

Script.prototype._insertAtPosition = function(op, prepend) {
  if (prepend) {
    this.chunks.unshift(op);
  } else {
    this.chunks.push(op);
  }
};

Script.prototype._addOpcode = function(opcode, prepend) {
  var op;
  if (typeof opcode === 'number') {
    op = opcode;
  } else if (opcode instanceof Opcode) {
    op = opcode.toNumber();
  } else {
    op = Opcode(opcode).toNumber();
  }
  this._insertAtPosition({
    opcodenum: op
  }, prepend);
  return this;
};

Script.prototype._addBuffer = function(buf, prepend) {
  var opcodenum;
  var len = buf.length;
  if (len >= 0 && len < Opcode.OP_PUSHDATA1) {
    opcodenum = len;
  } else if (len < Math.pow(2, 8)) {
    opcodenum = Opcode.OP_PUSHDATA1;
  } else if (len < Math.pow(2, 16)) {
    opcodenum = Opcode.OP_PUSHDATA2;
  } else if (len < Math.pow(2, 32)) {
    opcodenum = Opcode.OP_PUSHDATA4;
  } else {
    throw new Error('You can\'t push that much data');
  }
  this._insertAtPosition({
    buf: buf,
    len: len,
    opcodenum: opcodenum
  }, prepend);
  return this;
};

Script.prototype.removeCodeseparators = function() {
  var chunks = [];
  for (var i = 0; i < this.chunks.length; i++) {
    if (this.chunks[i].opcodenum !== Opcode.OP_CODESEPARATOR) {
      chunks.push(this.chunks[i]);
    }
  }
  this.chunks = chunks;
  return this;
};

// high level script builder methods

/**
 * @returns {Script} a new Multisig output script for given public keys,
 * requiring m of those public keys to spend
 * @param {PublicKey[]} publicKeys - list of all public keys controlling the output
 * @param {number} threshold - amount of required signatures to spend the output
 * @param {Object=} opts - Several options:
 *        - noSorting: defaults to false, if true, don't sort the given
 *                      public keys before creating the script
 */
Script.buildMultisigOut = function(publicKeys, threshold, opts) {
  $.checkArgument(threshold <= publicKeys.length,
    'Number of required signatures must be less than or equal to the number of public keys');
  opts = opts || {};
  var script = new Script();
  script.add(Opcode.smallInt(threshold));
  publicKeys = _.map(publicKeys, PublicKey);
  var sorted = publicKeys;
  if (!opts.noSorting) {
    sorted = _.sortBy(publicKeys, function(publicKey) {
      return publicKey.toString('hex');
    });
  }
  for (var i = 0; i < sorted.length; i++) {
    var publicKey = sorted[i];
    script.add(publicKey.toBuffer());
  }
  script.add(Opcode.smallInt(publicKeys.length));
  script.add(Opcode.OP_CHECKMULTISIG);
  return script;
};

/**
 * A new Multisig input script for the given public keys, requiring m of those public keys to spend
 *
 * @param {PublicKey[]} pubkeys list of all public keys controlling the output
 * @param {number} threshold amount of required signatures to spend the output
 * @param {Array} signatures and array of signature buffers to append to the script
 * @param {Object=} opts
 * @param {boolean=} opts.noSorting don't sort the given public keys before creating the script (false by default)
 * @param {Script=} opts.cachedMultisig don't recalculate the redeemScript
 *
 * @returns {Script}
 */
Script.buildMultisigIn = function(pubkeys, threshold, signatures, opts) {
  $.checkArgument(_.isArray(pubkeys));
  $.checkArgument(_.isNumber(threshold));
  $.checkArgument(_.isArray(signatures));
  opts = opts || {};
  var s = new Script();
  s.add(Opcode.OP_0);
  _.each(signatures, function(signature) {
    $.checkArgument(BufferUtil.isBuffer(signature), 'Signatures must be an array of Buffers');
    // TODO: allow signatures to be an array of Signature objects
    s.add(signature);
  });
  return s;
};

/**
 * A new P2SH Multisig input script for the given public keys, requiring m of those public keys to spend
 *
 * @param {PublicKey[]} pubkeys list of all public keys controlling the output
 * @param {number} threshold amount of required signatures to spend the output
 * @param {Array} signatures and array of signature buffers to append to the script
 * @param {Object=} opts
 * @param {boolean=} opts.noSorting don't sort the given public keys before creating the script (false by default)
 * @param {Script=} opts.cachedMultisig don't recalculate the redeemScript
 *
 * @returns {Script}
 */
Script.buildP2SHMultisigIn = function(pubkeys, threshold, signatures, opts) {
  $.checkArgument(_.isArray(pubkeys));
  $.checkArgument(_.isNumber(threshold));
  $.checkArgument(_.isArray(signatures));
  opts = opts || {};
  var s = new Script();
  s.add(Opcode.OP_0);
  _.each(signatures, function(signature) {
    $.checkArgument(BufferUtil.isBuffer(signature), 'Signatures must be an array of Buffers');
    // TODO: allow signatures to be an array of Signature objects
    s.add(signature);
  });
  s.add((opts.cachedMultisig || Script.buildMultisigOut(pubkeys, threshold, opts)).toBuffer());
  return s;
};

/**
 * @returns {Script} a new pay to public key hash output for the given
 * address or public key
 * @param {(Address|PublicKey)} to - destination address or public key
 */
Script.buildPublicKeyHashOut = function(to) {
  $.checkArgument(!_.isUndefined(to));
  $.checkArgument(to instanceof PublicKey || to instanceof Address || _.isString(to));
  if (to instanceof PublicKey) {
    to = to.toAddress();
  } else if (_.isString(to)) {
    to = new Address(to);
  }
  var s = new Script();
  s.add(Opcode.OP_DUP)
    .add(Opcode.OP_HASH160)
    .add(to.hashBuffer)
    .add(Opcode.OP_EQUALVERIFY)
    .add(Opcode.OP_CHECKSIG);
  s._network = to.network;
  return s;
};

/**
 * @returns {Script} a new pay to public key output for the given
 *  public key
 */
Script.buildPublicKeyOut = function(pubkey) {
  $.checkArgument(pubkey instanceof PublicKey);
  var s = new Script();
  s.add(pubkey.toBuffer())
    .add(Opcode.OP_CHECKSIG);
  return s;
};

/**
 * @returns {Script} a new OP_RETURN script with data
 * @param {(string|Buffer)} data - the data to embed in the output
 * @param {(string)} encoding - the type of encoding of the string
 */
Script.buildDataOut = function(data, encoding) {
  $.checkArgument(_.isUndefined(data) || _.isString(data) || BufferUtil.isBuffer(data));
  if (_.isString(data)) {
    data = new Buffer(data, encoding);
  }
  var s = new Script();
  s.add(Opcode.OP_RETURN);
  if (!_.isUndefined(data)) {
    s.add(data);
  }
  return s;
};

/**
 * @param {Script|Address} script - the redeemScript for the new p2sh output.
 *    It can also be a p2sh address
 * @returns {Script} new pay to script hash script for given script
 */
Script.buildScriptHashOut = function(script) {
  $.checkArgument(script instanceof Script ||
    (script instanceof Address && script.isPayToScriptHash()));
  var s = new Script();
  s.add(Opcode.OP_HASH160)
    .add(script instanceof Address ? script.hashBuffer : Hash.sha256ripemd160(script.toBuffer()))
    .add(Opcode.OP_EQUAL);

  s._network = script._network || script.network;
  return s;
};

/**
 * Builds a scriptSig (a script for an input) that signs a public key output script.
 *
 * @param {Signature|Buffer} signature - a Signature object, or the signature in DER canonical encoding
 * @param {number=} sigtype - the type of the signature (defaults to SIGHASH_ALL)
 */
Script.buildPublicKeyIn = function(signature, sigtype) {
  $.checkArgument(signature instanceof Signature || BufferUtil.isBuffer(signature));
  $.checkArgument(_.isUndefined(sigtype) || _.isNumber(sigtype));
  if (signature instanceof Signature) {
    signature = signature.toBuffer();
  }
  var script = new Script();
  script.add(BufferUtil.concat([
    signature,
    BufferUtil.integerAsSingleByteBuffer(sigtype || Signature.SIGHASH_ALL)
  ]));
  return script;
};

/**
 * Builds a scriptSig (a script for an input) that signs a public key hash
 * output script.
 *
 * @param {Buffer|string|PublicKey} publicKey
 * @param {Signature|Buffer} signature - a Signature object, or the signature in DER canonical encoding
 * @param {number=} sigtype - the type of the signature (defaults to SIGHASH_ALL)
 */
Script.buildPublicKeyHashIn = function(publicKey, signature, sigtype) {
  $.checkArgument(signature instanceof Signature || BufferUtil.isBuffer(signature));
  $.checkArgument(_.isUndefined(sigtype) || _.isNumber(sigtype));
  if (signature instanceof Signature) {
    signature = signature.toBuffer();
  }
  var script = new Script()
    .add(BufferUtil.concat([
      signature,
      BufferUtil.integerAsSingleByteBuffer(sigtype || Signature.SIGHASH_ALL)
    ]))
    .add(new PublicKey(publicKey).toBuffer());
  return script;
};

/**
 * @returns {Script} an empty script
 */
Script.empty = function() {
  return new Script();
};

/**
 * @returns {Script} a new pay to script hash script that pays to this script
 */
Script.prototype.toScriptHashOut = function() {
  return Script.buildScriptHashOut(this);
};

/**
 * @return {Script} an output script built from the address
 */
Script.fromAddress = function(address) {
  address = Address(address);
  if (address.isPayToScriptHash()) {
    return Script.buildScriptHashOut(address);
  } else if (address.isPayToPublicKeyHash()) {
    return Script.buildPublicKeyHashOut(address);
  }
  throw new errors.Script.UnrecognizedAddress(address);
};

/**
 * Will return the associated address information object
 * @return {Address|boolean}
 */
Script.prototype.getAddressInfo = function(opts) {
  if (this._isInput) {
    return this._getInputAddressInfo();
  } else if (this._isOutput) {
    return this._getOutputAddressInfo();
  } else {
    var info = this._getOutputAddressInfo();
    if (!info) {
      return this._getInputAddressInfo();
    }
    return info;
  }
};

/**
 * Will return the associated output scriptPubKey address information object
 * @return {Address|boolean}
 * @private
 */
Script.prototype._getOutputAddressInfo = function() {
  var info = {};
  if (this.isScriptHashOut()) {
    info.hashBuffer = this.getData();
    info.type = Address.PayToScriptHash;
  } else if (this.isPublicKeyHashOut()) {
    info.hashBuffer = this.getData();
    info.type = Address.PayToPublicKeyHash;
  } else {
    return false;
  }
  return info;
};

/**
 * Will return the associated input scriptSig address information object
 * @return {Address|boolean}
 * @private
 */
Script.prototype._getInputAddressInfo = function() {
  var info = {};
  if (this.isPublicKeyHashIn()) {
    // hash the publickey found in the scriptSig
    info.hashBuffer = Hash.sha256ripemd160(this.chunks[1].buf);
    info.type = Address.PayToPublicKeyHash;
  } else if (this.isScriptHashIn()) {
    // hash the redeemscript found at the end of the scriptSig
    info.hashBuffer = Hash.sha256ripemd160(this.chunks[this.chunks.length - 1].buf);
    info.type = Address.PayToScriptHash;
  } else {
    return false;
  }
  return info;
};

/**
 * @param {Network=} network
 * @return {Address|boolean} the associated address for this script if possible, or false
 */
Script.prototype.toAddress = function(network) {
  var info = this.getAddressInfo();
  if (!info) {
    return false;
  }
  info.network = Networks.get(network) || this._network || Networks.defaultNetwork;
  return new Address(info);
};

/**
 * Analogous to bitcoind's FindAndDelete. Find and delete equivalent chunks,
 * typically used with push data chunks.  Note that this will find and delete
 * not just the same data, but the same data with the same push data op as
 * produced by default. i.e., if a pushdata in a tx does not use the minimal
 * pushdata op, then when you try to remove the data it is pushing, it will not
 * be removed, because they do not use the same pushdata op.
 */
Script.prototype.findAndDelete = function(script) {
  var buf = script.toBuffer();
  var hex = buf.toString('hex');
  for (var i = 0; i < this.chunks.length; i++) {
    var script2 = Script({
      chunks: [this.chunks[i]]
    });
    var buf2 = script2.toBuffer();
    var hex2 = buf2.toString('hex');
    if (hex === hex2) {
      this.chunks.splice(i, 1);
    }
  }
  return this;
};

/**
 * Comes from bitcoind's script interpreter CheckMinimalPush function
 * @returns {boolean} if the chunk {i} is the smallest way to push that particular data.
 */
Script.prototype.checkMinimalPush = function(i) {
  var chunk = this.chunks[i];
  var buf = chunk.buf;
  var opcodenum = chunk.opcodenum;
  if (!buf) {
    return true;
  }
  if (buf.length === 0) {
    // Could have used OP_0.
    return opcodenum === Opcode.OP_0;
  } else if (buf.length === 1 && buf[0] >= 1 && buf[0] <= 16) {
    // Could have used OP_1 .. OP_16.
    return opcodenum === Opcode.OP_1 + (buf[0] - 1);
  } else if (buf.length === 1 && buf[0] === 0x81) {
    // Could have used OP_1NEGATE
    return opcodenum === Opcode.OP_1NEGATE;
  } else if (buf.length <= 75) {
    // Could have used a direct push (opcode indicating number of bytes pushed + those bytes).
    return opcodenum === buf.length;
  } else if (buf.length <= 255) {
    // Could have used OP_PUSHDATA.
    return opcodenum === Opcode.OP_PUSHDATA1;
  } else if (buf.length <= 65535) {
    // Could have used OP_PUSHDATA2.
    return opcodenum === Opcode.OP_PUSHDATA2;
  }
  return true;
};

/**
 * Comes from bitcoind's script DecodeOP_N function
 * @param {number} opcode
 * @returns {number} numeric value in range of 0 to 16
 */
Script.prototype._decodeOP_N = function(opcode) {
  if (opcode === Opcode.OP_0) {
    return 0;
  } else if (opcode >= Opcode.OP_1 && opcode <= Opcode.OP_16) {
    return opcode - (Opcode.OP_1 - 1);
  } else {
    throw new Error('Invalid opcode: ' + JSON.stringify(opcode));
  }
};

/**
 * Comes from bitcoind's script GetSigOpCount(boolean) function
 * @param {boolean} use current (true) or pre-version-0.6 (false) logic
 * @returns {number} number of signature operations required by this script
 */
Script.prototype.getSignatureOperationsCount = function(accurate) {
  accurate = (_.isUndefined(accurate) ? true : accurate);
  var self = this;
  var n = 0;
  var lastOpcode = Opcode.OP_INVALIDOPCODE;
  _.each(self.chunks, function getChunk(chunk) {
    var opcode = chunk.opcodenum;
    if (opcode == Opcode.OP_CHECKSIG || opcode == Opcode.OP_CHECKSIGVERIFY) {
      n++;
    } else if (opcode == Opcode.OP_CHECKMULTISIG || opcode == Opcode.OP_CHECKMULTISIGVERIFY) {
      if (accurate && lastOpcode >= Opcode.OP_1 && lastOpcode <= Opcode.OP_16) {
        n += self._decodeOP_N(lastOpcode);
      } else {
        n += 20;
      }
    }
    lastOpcode = opcode;
  });
  return n;
};

module.exports = Script;

}).call(this,require("buffer").Buffer)
},{"../address":1,"../crypto/hash":8,"../crypto/signature":11,"../encoding/bufferreader":14,"../encoding/bufferwriter":15,"../errors":17,"../networks":25,"../opcode":26,"../publickey":28,"../util/buffer":46,"../util/js":47,"../util/preconditions":48,"buffer":95,"lodash":142}],32:[function(require,module,exports){
module.exports = require('./transaction');

module.exports.Input = require('./input');
module.exports.Output = require('./output');
module.exports.UnspentOutput = require('./unspentoutput');
module.exports.Signature = require('./signature');
module.exports.Sighash = require('./sighash');

},{"./input":33,"./output":39,"./sighash":40,"./signature":41,"./transaction":42,"./unspentoutput":43}],33:[function(require,module,exports){
module.exports = require('./input');

module.exports.PublicKey = require('./publickey');
module.exports.PublicKeyHash = require('./publickeyhash');
module.exports.MultiSig = require('./multisig.js');
module.exports.MultiSigScriptHash = require('./multisigscripthash.js');

},{"./input":34,"./multisig.js":35,"./multisigscripthash.js":36,"./publickey":37,"./publickeyhash":38}],34:[function(require,module,exports){
'use strict';

var _ = require('lodash');
var $ = require('../../util/preconditions');
var errors = require('../../errors');
var BufferWriter = require('../../encoding/bufferwriter');
var buffer = require('buffer');
var BufferUtil = require('../../util/buffer');
var JSUtil = require('../../util/js');
var Script = require('../../script');
var Sighash = require('../sighash');
var Output = require('../output');

var MAXINT = 0xffffffff; // Math.pow(2, 32) - 1;
var DEFAULT_RBF_SEQNUMBER = MAXINT - 2;
var DEFAULT_SEQNUMBER = MAXINT;
var DEFAULT_LOCKTIME_SEQNUMBER = MAXINT - 1;

function Input(params) {
  if (!(this instanceof Input)) {
    return new Input(params);
  }
  if (params) {
    return this._fromObject(params);
  }
}

Input.MAXINT = MAXINT;
Input.DEFAULT_SEQNUMBER = DEFAULT_SEQNUMBER;
Input.DEFAULT_LOCKTIME_SEQNUMBER = DEFAULT_LOCKTIME_SEQNUMBER;
Input.DEFAULT_RBF_SEQNUMBER = DEFAULT_RBF_SEQNUMBER;

Object.defineProperty(Input.prototype, 'script', {
  configurable: false,
  enumerable: true,
  get: function() {
    if (this.isNull()) {
      return null;
    }
    if (!this._script) {
      this._script = new Script(this._scriptBuffer);
      this._script._isInput = true;
    }
    return this._script;
  }
});

Input.fromObject = function(obj) {
  $.checkArgument(_.isObject(obj));
  var input = new Input();
  return input._fromObject(obj);
};

Input.prototype._fromObject = function(params) {
  var prevTxId;
  if (_.isString(params.prevTxId) && JSUtil.isHexa(params.prevTxId)) {
    prevTxId = new buffer.Buffer(params.prevTxId, 'hex');
  } else {
    prevTxId = params.prevTxId;
  }
  this.output = params.output ?
    (params.output instanceof Output ? params.output : new Output(params.output)) : undefined;
  this.prevTxId = prevTxId || params.txidbuf;
  this.outputIndex = _.isUndefined(params.outputIndex) ? params.txoutnum : params.outputIndex;
  this.sequenceNumber = _.isUndefined(params.sequenceNumber) ?
    (_.isUndefined(params.seqnum) ? DEFAULT_SEQNUMBER : params.seqnum) : params.sequenceNumber;
  if (_.isUndefined(params.script) && _.isUndefined(params.scriptBuffer)) {
    throw new errors.Transaction.Input.MissingScript();
  }
  this.setScript(params.scriptBuffer || params.script);
  return this;
};

Input.prototype.toObject = Input.prototype.toJSON = function toObject() {
  var obj = {
    prevTxId: this.prevTxId.toString('hex'),
    outputIndex: this.outputIndex,
    sequenceNumber: this.sequenceNumber,
    script: this._scriptBuffer.toString('hex'),
  };
  // add human readable form if input contains valid script
  if (this.script) {
    obj.scriptString = this.script.toString();
  }
  if (this.output) {
    obj.output = this.output.toObject();
  }
  return obj;
};

Input.fromBufferReader = function(br) {
  var input = new Input();
  input.prevTxId = br.readReverse(32);
  input.outputIndex = br.readUInt32LE();
  input._scriptBuffer = br.readVarLengthBuffer();
  input.sequenceNumber = br.readUInt32LE();
  // TODO: return different classes according to which input it is
  // e.g: CoinbaseInput, PublicKeyHashInput, MultiSigScriptHashInput, etc.
  return input;
};

Input.prototype.toBufferWriter = function(writer) {
  if (!writer) {
    writer = new BufferWriter();
  }
  writer.writeReverse(this.prevTxId);
  writer.writeUInt32LE(this.outputIndex);
  var script = this._scriptBuffer;
  writer.writeVarintNum(script.length);
  writer.write(script);
  writer.writeUInt32LE(this.sequenceNumber);
  return writer;
};

Input.prototype.setScript = function(script) {
  this._script = null;
  if (script instanceof Script) {
    this._script = script;
    this._script._isInput = true;
    this._scriptBuffer = script.toBuffer();
  } else if (JSUtil.isHexa(script)) {
    // hex string script
    this._scriptBuffer = new buffer.Buffer(script, 'hex');
  } else if (_.isString(script)) {
    // human readable string script
    this._script = new Script(script);
    this._script._isInput = true;
    this._scriptBuffer = this._script.toBuffer();
  } else if (BufferUtil.isBuffer(script)) {
    // buffer script
    this._scriptBuffer = new buffer.Buffer(script);
  } else {
    throw new TypeError('Invalid argument type: script');
  }
  return this;
};

/**
 * Retrieve signatures for the provided PrivateKey.
 *
 * @param {Transaction} transaction - the transaction to be signed
 * @param {PrivateKey} privateKey - the private key to use when signing
 * @param {number} inputIndex - the index of this input in the provided transaction
 * @param {number} sigType - defaults to Signature.SIGHASH_ALL
 * @param {Buffer} addressHash - if provided, don't calculate the hash of the
 *     public key associated with the private key provided
 * @abstract
 */
Input.prototype.getSignatures = function() {
  throw new errors.AbstractMethodInvoked(
    'Trying to sign unsupported output type (only P2PKH and P2SH multisig inputs are supported)' +
    ' for input: ' + JSON.stringify(this)
  );
};

Input.prototype.isFullySigned = function() {
  throw new errors.AbstractMethodInvoked('Input#isFullySigned');
};

Input.prototype.isFinal = function() {
  return this.sequenceNumber !== 4294967295;
};

Input.prototype.addSignature = function() {
  throw new errors.AbstractMethodInvoked('Input#addSignature');
};

Input.prototype.clearSignatures = function() {
  throw new errors.AbstractMethodInvoked('Input#clearSignatures');
};

Input.prototype.isValidSignature = function(transaction, signature) {
  // FIXME: Refactor signature so this is not necessary
  signature.signature.nhashtype = signature.sigtype;
  return Sighash.verify(
    transaction,
    signature.signature,
    signature.publicKey,
    signature.inputIndex,
    this.output.script
  );
};

/**
 * @returns true if this is a coinbase input (represents no input)
 */
Input.prototype.isNull = function() {
  return this.prevTxId.toString('hex') === '0000000000000000000000000000000000000000000000000000000000000000' &&
    this.outputIndex === 0xffffffff;
};

Input.prototype._estimateSize = function() {
  return this.toBufferWriter().toBuffer().length;
};

module.exports = Input;

},{"../../encoding/bufferwriter":15,"../../errors":17,"../../script":29,"../../util/buffer":46,"../../util/js":47,"../../util/preconditions":48,"../output":39,"../sighash":40,"buffer":95,"lodash":142}],35:[function(require,module,exports){
'use strict';

var _ = require('lodash');
var inherits = require('inherits');
var Transaction = require('../transaction');
var Input = require('./input');
var Output = require('../output');
var $ = require('../../util/preconditions');

var Script = require('../../script');
var Signature = require('../../crypto/signature');
var Sighash = require('../sighash');
var PublicKey = require('../../publickey');
var BufferUtil = require('../../util/buffer');
var TransactionSignature = require('../signature');

/**
 * @constructor
 */
function MultiSigInput(input, pubkeys, threshold, signatures) {
  Input.apply(this, arguments);
  var self = this;
  pubkeys = pubkeys || input.publicKeys;
  threshold = threshold || input.threshold;
  signatures = signatures || input.signatures;
  this.publicKeys = _.sortBy(pubkeys, function(publicKey) { return publicKey.toString('hex'); });
  $.checkState(Script.buildMultisigOut(this.publicKeys, threshold).equals(this.output.script),
    'Provided public keys don\'t match to the provided output script');
  this.publicKeyIndex = {};
  _.each(this.publicKeys, function(publicKey, index) {
    self.publicKeyIndex[publicKey.toString()] = index;
  });
  this.threshold = threshold;
  // Empty array of signatures
  this.signatures = signatures ? this._deserializeSignatures(signatures) : new Array(this.publicKeys.length);
}
inherits(MultiSigInput, Input);

MultiSigInput.prototype.toObject = function() {
  var obj = Input.prototype.toObject.apply(this, arguments);
  obj.threshold = this.threshold;
  obj.publicKeys = _.map(this.publicKeys, function(publicKey) { return publicKey.toString(); });
  obj.signatures = this._serializeSignatures();
  return obj;
};

MultiSigInput.prototype._deserializeSignatures = function(signatures) {
  return _.map(signatures, function(signature) {
    if (!signature) {
      return undefined;
    }
    return new TransactionSignature(signature);
  });
};

MultiSigInput.prototype._serializeSignatures = function() {
  return _.map(this.signatures, function(signature) {
    if (!signature) {
      return undefined;
    }
    return signature.toObject();
  });
};

MultiSigInput.prototype.getSignatures = function(transaction, privateKey, index, sigtype) {
  $.checkState(this.output instanceof Output);
  sigtype = sigtype || Signature.SIGHASH_ALL;

  var self = this;
  var results = [];
  _.each(this.publicKeys, function(publicKey) {
    if (publicKey.toString() === privateKey.publicKey.toString()) {
      results.push(new TransactionSignature({
        publicKey: privateKey.publicKey,
        prevTxId: self.prevTxId,
        outputIndex: self.outputIndex,
        inputIndex: index,
        signature: Sighash.sign(transaction, privateKey, sigtype, index, self.output.script),
        sigtype: sigtype
      }));
    }
  });

  return results;
};

MultiSigInput.prototype.addSignature = function(transaction, signature) {
  $.checkState(!this.isFullySigned(), 'All needed signatures have already been added');
  $.checkArgument(!_.isUndefined(this.publicKeyIndex[signature.publicKey.toString()]),
    'Signature has no matching public key');
  $.checkState(this.isValidSignature(transaction, signature));
  this.signatures[this.publicKeyIndex[signature.publicKey.toString()]] = signature;
  this._updateScript();
  return this;
};

MultiSigInput.prototype._updateScript = function() {
  this.setScript(Script.buildMultisigIn(
    this.publicKeys,
    this.threshold,
    this._createSignatures()
  ));
  return this;
};

MultiSigInput.prototype._createSignatures = function() {
  return _.map(
    _.filter(this.signatures, function(signature) { return !_.isUndefined(signature); }),
    function(signature) {
      return BufferUtil.concat([
        signature.signature.toDER(),
        BufferUtil.integerAsSingleByteBuffer(signature.sigtype)
      ]);
    }
  );
};

MultiSigInput.prototype.clearSignatures = function() {
  this.signatures = new Array(this.publicKeys.length);
  this._updateScript();
};

MultiSigInput.prototype.isFullySigned = function() {
  return this.countSignatures() === this.threshold;
};

MultiSigInput.prototype.countMissingSignatures = function() {
  return this.threshold - this.countSignatures();
};

MultiSigInput.prototype.countSignatures = function() {
  return _.reduce(this.signatures, function(sum, signature) {
    return sum + (!!signature);
  }, 0);
};

MultiSigInput.prototype.publicKeysWithoutSignature = function() {
  var self = this;
  return _.filter(this.publicKeys, function(publicKey) {
    return !(self.signatures[self.publicKeyIndex[publicKey.toString()]]);
  });
};

MultiSigInput.prototype.isValidSignature = function(transaction, signature) {
  // FIXME: Refactor signature so this is not necessary
  signature.signature.nhashtype = signature.sigtype;
  return Sighash.verify(
    transaction,
    signature.signature,
    signature.publicKey,
    signature.inputIndex,
    this.output.script
  );
};

/**
 *
 * @param {Buffer[]} signatures
 * @param {PublicKey[]} publicKeys
 * @param {Transaction} transaction
 * @param {Integer} inputIndex
 * @param {Input} input
 * @returns {TransactionSignature[]}
 */
MultiSigInput.normalizeSignatures = function(transaction, input, inputIndex, signatures, publicKeys) {
  return publicKeys.map(function (pubKey) {
    var signatureMatch = null;
    signatures = signatures.filter(function (signatureBuffer) {
      if (signatureMatch) {
        return true;
      }

      var signature = new TransactionSignature({
        signature: Signature.fromTxFormat(signatureBuffer),
        publicKey: pubKey,
        prevTxId: input.prevTxId,
        outputIndex: input.outputIndex,
        inputIndex: inputIndex,
        sigtype: Signature.SIGHASH_ALL
      });

      signature.signature.nhashtype = signature.sigtype;
      var isMatch = Sighash.verify(
          transaction,
          signature.signature,
          signature.publicKey,
          signature.inputIndex,
          input.output.script
      );

      if (isMatch) {
        signatureMatch = signature;
        return false;
      }

      return true;
    });

    return signatureMatch ? signatureMatch : null;
  });
};

MultiSigInput.OPCODES_SIZE = 1; // 0
MultiSigInput.SIGNATURE_SIZE = 73; // size (1) + DER (<=72)

MultiSigInput.prototype._estimateSize = function() {
  return MultiSigInput.OPCODES_SIZE +
    this.threshold * MultiSigInput.SIGNATURE_SIZE;
};

module.exports = MultiSigInput;

},{"../../crypto/signature":11,"../../publickey":28,"../../script":29,"../../util/buffer":46,"../../util/preconditions":48,"../output":39,"../sighash":40,"../signature":41,"../transaction":42,"./input":34,"inherits":139,"lodash":142}],36:[function(require,module,exports){
'use strict';

var _ = require('lodash');
var inherits = require('inherits');
var Input = require('./input');
var Output = require('../output');
var $ = require('../../util/preconditions');

var Script = require('../../script');
var Signature = require('../../crypto/signature');
var Sighash = require('../sighash');
var PublicKey = require('../../publickey');
var BufferUtil = require('../../util/buffer');
var TransactionSignature = require('../signature');

/**
 * @constructor
 */
function MultiSigScriptHashInput(input, pubkeys, threshold, signatures) {
  Input.apply(this, arguments);
  var self = this;
  pubkeys = pubkeys || input.publicKeys;
  threshold = threshold || input.threshold;
  signatures = signatures || input.signatures;
  this.publicKeys = _.sortBy(pubkeys, function(publicKey) { return publicKey.toString('hex'); });
  this.redeemScript = Script.buildMultisigOut(this.publicKeys, threshold);
  $.checkState(Script.buildScriptHashOut(this.redeemScript).equals(this.output.script),
               'Provided public keys don\'t hash to the provided output');
  this.publicKeyIndex = {};
  _.each(this.publicKeys, function(publicKey, index) {
    self.publicKeyIndex[publicKey.toString()] = index;
  });
  this.threshold = threshold;
  // Empty array of signatures
  this.signatures = signatures ? this._deserializeSignatures(signatures) : new Array(this.publicKeys.length);
}
inherits(MultiSigScriptHashInput, Input);

MultiSigScriptHashInput.prototype.toObject = function() {
  var obj = Input.prototype.toObject.apply(this, arguments);
  obj.threshold = this.threshold;
  obj.publicKeys = _.map(this.publicKeys, function(publicKey) { return publicKey.toString(); });
  obj.signatures = this._serializeSignatures();
  return obj;
};

MultiSigScriptHashInput.prototype._deserializeSignatures = function(signatures) {
  return _.map(signatures, function(signature) {
    if (!signature) {
      return undefined;
    }
    return new TransactionSignature(signature);
  });
};

MultiSigScriptHashInput.prototype._serializeSignatures = function() {
  return _.map(this.signatures, function(signature) {
    if (!signature) {
      return undefined;
    }
    return signature.toObject();
  });
};

MultiSigScriptHashInput.prototype.getSignatures = function(transaction, privateKey, index, sigtype) {
  $.checkState(this.output instanceof Output);
  sigtype = sigtype || Signature.SIGHASH_ALL;

  var self = this;
  var results = [];
  _.each(this.publicKeys, function(publicKey) {
    if (publicKey.toString() === privateKey.publicKey.toString()) {
      results.push(new TransactionSignature({
        publicKey: privateKey.publicKey,
        prevTxId: self.prevTxId,
        outputIndex: self.outputIndex,
        inputIndex: index,
        signature: Sighash.sign(transaction, privateKey, sigtype, index, self.redeemScript),
        sigtype: sigtype
      }));
    }
  });
  return results;
};

MultiSigScriptHashInput.prototype.addSignature = function(transaction, signature) {
  $.checkState(!this.isFullySigned(), 'All needed signatures have already been added');
  $.checkArgument(!_.isUndefined(this.publicKeyIndex[signature.publicKey.toString()]),
                  'Signature has no matching public key');
  $.checkState(this.isValidSignature(transaction, signature));
  this.signatures[this.publicKeyIndex[signature.publicKey.toString()]] = signature;
  this._updateScript();
  return this;
};

MultiSigScriptHashInput.prototype._updateScript = function() {
  this.setScript(Script.buildP2SHMultisigIn(
    this.publicKeys,
    this.threshold,
    this._createSignatures(),
    { cachedMultisig: this.redeemScript }
  ));
  return this;
};

MultiSigScriptHashInput.prototype._createSignatures = function() {
  return _.map(
    _.filter(this.signatures, function(signature) { return !_.isUndefined(signature); }),
    function(signature) {
      return BufferUtil.concat([
        signature.signature.toDER(),
        BufferUtil.integerAsSingleByteBuffer(signature.sigtype)
      ]);
    }
  );
};

MultiSigScriptHashInput.prototype.clearSignatures = function() {
  this.signatures = new Array(this.publicKeys.length);
  this._updateScript();
};

MultiSigScriptHashInput.prototype.isFullySigned = function() {
  return this.countSignatures() === this.threshold;
};

MultiSigScriptHashInput.prototype.countMissingSignatures = function() {
  return this.threshold - this.countSignatures();
};

MultiSigScriptHashInput.prototype.countSignatures = function() {
  return _.reduce(this.signatures, function(sum, signature) {
    return sum + (!!signature);
  }, 0);
};

MultiSigScriptHashInput.prototype.publicKeysWithoutSignature = function() {
  var self = this;
  return _.filter(this.publicKeys, function(publicKey) {
    return !(self.signatures[self.publicKeyIndex[publicKey.toString()]]);
  });
};

MultiSigScriptHashInput.prototype.isValidSignature = function(transaction, signature) {
  // FIXME: Refactor signature so this is not necessary
  signature.signature.nhashtype = signature.sigtype;
  return Sighash.verify(
      transaction,
      signature.signature,
      signature.publicKey,
      signature.inputIndex,
      this.redeemScript
  );
};

MultiSigScriptHashInput.OPCODES_SIZE = 7; // serialized size (<=3) + 0 .. N .. M OP_CHECKMULTISIG
MultiSigScriptHashInput.SIGNATURE_SIZE = 74; // size (1) + DER (<=72) + sighash (1)
MultiSigScriptHashInput.PUBKEY_SIZE = 34; // size (1) + DER (<=33)

MultiSigScriptHashInput.prototype._estimateSize = function() {
  return MultiSigScriptHashInput.OPCODES_SIZE +
    this.threshold * MultiSigScriptHashInput.SIGNATURE_SIZE +
    this.publicKeys.length * MultiSigScriptHashInput.PUBKEY_SIZE;
};

module.exports = MultiSigScriptHashInput;

},{"../../crypto/signature":11,"../../publickey":28,"../../script":29,"../../util/buffer":46,"../../util/preconditions":48,"../output":39,"../sighash":40,"../signature":41,"./input":34,"inherits":139,"lodash":142}],37:[function(require,module,exports){
'use strict';

var inherits = require('inherits');

var $ = require('../../util/preconditions');
var BufferUtil = require('../../util/buffer');

var Input = require('./input');
var Output = require('../output');
var Sighash = require('../sighash');
var Script = require('../../script');
var Signature = require('../../crypto/signature');
var TransactionSignature = require('../signature');

/**
 * Represents a special kind of input of PayToPublicKey kind.
 * @constructor
 */
function PublicKeyInput() {
  Input.apply(this, arguments);
}
inherits(PublicKeyInput, Input);

/**
 * @param {Transaction} transaction - the transaction to be signed
 * @param {PrivateKey} privateKey - the private key with which to sign the transaction
 * @param {number} index - the index of the input in the transaction input vector
 * @param {number=} sigtype - the type of signature, defaults to Signature.SIGHASH_ALL
 * @return {Array} of objects that can be
 */
PublicKeyInput.prototype.getSignatures = function(transaction, privateKey, index, sigtype) {
  $.checkState(this.output instanceof Output);
  sigtype = sigtype || Signature.SIGHASH_ALL;
  var publicKey = privateKey.toPublicKey();
  if (publicKey.toString() === this.output.script.getPublicKey().toString('hex')) {
    return [new TransactionSignature({
      publicKey: publicKey,
      prevTxId: this.prevTxId,
      outputIndex: this.outputIndex,
      inputIndex: index,
      signature: Sighash.sign(transaction, privateKey, sigtype, index, this.output.script),
      sigtype: sigtype
    })];
  }
  return [];
};

/**
 * Add the provided signature
 *
 * @param {Object} signature
 * @param {PublicKey} signature.publicKey
 * @param {Signature} signature.signature
 * @param {number=} signature.sigtype
 * @return {PublicKeyInput} this, for chaining
 */
PublicKeyInput.prototype.addSignature = function(transaction, signature) {
  $.checkState(this.isValidSignature(transaction, signature), 'Signature is invalid');
  this.setScript(Script.buildPublicKeyIn(
    signature.signature.toDER(),
    signature.sigtype
  ));
  return this;
};

/**
 * Clear the input's signature
 * @return {PublicKeyHashInput} this, for chaining
 */
PublicKeyInput.prototype.clearSignatures = function() {
  this.setScript(Script.empty());
  return this;
};

/**
 * Query whether the input is signed
 * @return {boolean}
 */
PublicKeyInput.prototype.isFullySigned = function() {
  return this.script.isPublicKeyIn();
};

PublicKeyInput.SCRIPT_MAX_SIZE = 73; // sigsize (1 + 72)

PublicKeyInput.prototype._estimateSize = function() {
  return PublicKeyInput.SCRIPT_MAX_SIZE;
};

module.exports = PublicKeyInput;

},{"../../crypto/signature":11,"../../script":29,"../../util/buffer":46,"../../util/preconditions":48,"../output":39,"../sighash":40,"../signature":41,"./input":34,"inherits":139}],38:[function(require,module,exports){
'use strict';

var inherits = require('inherits');

var $ = require('../../util/preconditions');
var BufferUtil = require('../../util/buffer');

var Hash = require('../../crypto/hash');
var Input = require('./input');
var Output = require('../output');
var Sighash = require('../sighash');
var Script = require('../../script');
var Signature = require('../../crypto/signature');
var TransactionSignature = require('../signature');

/**
 * Represents a special kind of input of PayToPublicKeyHash kind.
 * @constructor
 */
function PublicKeyHashInput() {
  Input.apply(this, arguments);
}
inherits(PublicKeyHashInput, Input);

/* jshint maxparams: 5 */
/**
 * @param {Transaction} transaction - the transaction to be signed
 * @param {PrivateKey} privateKey - the private key with which to sign the transaction
 * @param {number} index - the index of the input in the transaction input vector
 * @param {number=} sigtype - the type of signature, defaults to Signature.SIGHASH_ALL
 * @param {Buffer=} hashData - the precalculated hash of the public key associated with the privateKey provided
 * @return {Array} of objects that can be
 */
PublicKeyHashInput.prototype.getSignatures = function(transaction, privateKey, index, sigtype, hashData) {
  $.checkState(this.output instanceof Output);
  hashData = hashData || Hash.sha256ripemd160(privateKey.publicKey.toBuffer());
  sigtype = sigtype || Signature.SIGHASH_ALL;

  if (BufferUtil.equals(hashData, this.output.script.getPublicKeyHash())) {
    return [new TransactionSignature({
      publicKey: privateKey.publicKey,
      prevTxId: this.prevTxId,
      outputIndex: this.outputIndex,
      inputIndex: index,
      signature: Sighash.sign(transaction, privateKey, sigtype, index, this.output.script),
      sigtype: sigtype
    })];
  }
  return [];
};
/* jshint maxparams: 3 */

/**
 * Add the provided signature
 *
 * @param {Object} signature
 * @param {PublicKey} signature.publicKey
 * @param {Signature} signature.signature
 * @param {number=} signature.sigtype
 * @return {PublicKeyHashInput} this, for chaining
 */
PublicKeyHashInput.prototype.addSignature = function(transaction, signature) {
  $.checkState(this.isValidSignature(transaction, signature), 'Signature is invalid');
  this.setScript(Script.buildPublicKeyHashIn(
    signature.publicKey,
    signature.signature.toDER(),
    signature.sigtype
  ));
  return this;
};

/**
 * Clear the input's signature
 * @return {PublicKeyHashInput} this, for chaining
 */
PublicKeyHashInput.prototype.clearSignatures = function() {
  this.setScript(Script.empty());
  return this;
};

/**
 * Query whether the input is signed
 * @return {boolean}
 */
PublicKeyHashInput.prototype.isFullySigned = function() {
  return this.script.isPublicKeyHashIn();
};

PublicKeyHashInput.SCRIPT_MAX_SIZE = 73 + 34; // sigsize (1 + 72) + pubkey (1 + 33)

PublicKeyHashInput.prototype._estimateSize = function() {
  return PublicKeyHashInput.SCRIPT_MAX_SIZE;
};

module.exports = PublicKeyHashInput;

},{"../../crypto/hash":8,"../../crypto/signature":11,"../../script":29,"../../util/buffer":46,"../../util/preconditions":48,"../output":39,"../sighash":40,"../signature":41,"./input":34,"inherits":139}],39:[function(require,module,exports){
'use strict';

var _ = require('lodash');
var BN = require('../crypto/bn');
var buffer = require('buffer');
var bufferUtil = require('../util/buffer');
var JSUtil = require('../util/js');
var BufferWriter = require('../encoding/bufferwriter');
var Script = require('../script');
var $ = require('../util/preconditions');
var errors = require('../errors');

var MAX_SAFE_INTEGER = 0x1fffffffffffff;

function Output(args) {
  if (!(this instanceof Output)) {
    return new Output(args);
  }
  if (_.isObject(args)) {
    this.satoshis = args.satoshis;
    if (bufferUtil.isBuffer(args.script)) {
      this._scriptBuffer = args.script;
    } else {
      var script;
      if (_.isString(args.script) && JSUtil.isHexa(args.script)) {
        script = new buffer.Buffer(args.script, 'hex');
      } else {
        script = args.script;
      }
      this.setScript(script);
    }
  } else {
    throw new TypeError('Unrecognized argument for Output');
  }
}

Object.defineProperty(Output.prototype, 'script', {
  configurable: false,
  enumerable: true,
  get: function() {
    if (this._script) {
      return this._script;
    } else {
      this.setScriptFromBuffer(this._scriptBuffer);
      return this._script;
    }

  }
});

Object.defineProperty(Output.prototype, 'satoshis', {
  configurable: false,
  enumerable: true,
  get: function() {
    return this._satoshis;
  },
  set: function(num) {
    if (num instanceof BN) {
      this._satoshisBN = num;
      this._satoshis = num.toNumber();
    } else if (_.isString(num)) {
      this._satoshis = parseInt(num);
      this._satoshisBN = BN.fromNumber(this._satoshis);
    } else {
      $.checkArgument(
        JSUtil.isNaturalNumber(num),
        'Output satoshis is not a natural number'
      );
      this._satoshisBN = BN.fromNumber(num);
      this._satoshis = num;
    }
    $.checkState(
      JSUtil.isNaturalNumber(this._satoshis),
      'Output satoshis is not a natural number'
    );
  }
});

Output.prototype.invalidSatoshis = function() {
  if (this._satoshis > MAX_SAFE_INTEGER) {
    return 'transaction txout satoshis greater than max safe integer';
  }
  if (this._satoshis !== this._satoshisBN.toNumber()) {
    return 'transaction txout satoshis has corrupted value';
  }
  if (this._satoshis < 0) {
    return 'transaction txout negative';
  }
  return false;
};

Output.prototype.toObject = Output.prototype.toJSON = function toObject() {
  var obj = {
    satoshis: this.satoshis
  };
  obj.script = this._scriptBuffer.toString('hex');
  return obj;
};

Output.fromObject = function(data) {
  return new Output(data);
};

Output.prototype.setScriptFromBuffer = function(buffer) {
  this._scriptBuffer = buffer;
  try {
    this._script = Script.fromBuffer(this._scriptBuffer);
    this._script._isOutput = true;
  } catch(e) {
    if (e instanceof errors.Script.InvalidBuffer) {
      this._script = null;
    } else {
      throw e;
    }
  }
};

Output.prototype.setScript = function(script) {
  if (script instanceof Script) {
    this._scriptBuffer = script.toBuffer();
    this._script = script;
    this._script._isOutput = true;
  } else if (_.isString(script)) {
    this._script = Script.fromString(script);
    this._scriptBuffer = this._script.toBuffer();
    this._script._isOutput = true;
  } else if (bufferUtil.isBuffer(script)) {
    this.setScriptFromBuffer(script);
  } else {
    throw new TypeError('Invalid argument type: script');
  }
  return this;
};

Output.prototype.inspect = function() {
  var scriptStr;
  if (this.script) {
    scriptStr = this.script.inspect();
  } else {
    scriptStr = this._scriptBuffer.toString('hex');
  }
  return '<Output (' + this.satoshis + ' sats) ' + scriptStr + '>';
};

Output.fromBufferReader = function(br) {
  var obj = {};
  obj.satoshis = br.readUInt64LEBN();
  var size = br.readVarintNum();
  if (size !== 0) {
    obj.script = br.read(size);
  } else {
    obj.script = new buffer.Buffer([]);
  }
  return new Output(obj);
};

Output.prototype.toBufferWriter = function(writer) {
  if (!writer) {
    writer = new BufferWriter();
  }
  writer.writeUInt64LEBN(this._satoshisBN);
  var script = this._scriptBuffer;
  writer.writeVarintNum(script.length);
  writer.write(script);
  return writer;
};

module.exports = Output;

},{"../crypto/bn":6,"../encoding/bufferwriter":15,"../errors":17,"../script":29,"../util/buffer":46,"../util/js":47,"../util/preconditions":48,"buffer":95,"lodash":142}],40:[function(require,module,exports){
(function (Buffer){
'use strict';

var buffer = require('buffer');

var Signature = require('../crypto/signature');
var Script = require('../script');
var Output = require('./output');
var BufferReader = require('../encoding/bufferreader');
var BufferWriter = require('../encoding/bufferwriter');
var BN = require('../crypto/bn');
var Hash = require('../crypto/hash');
var ECDSA = require('../crypto/ecdsa');
var $ = require('../util/preconditions');
var _ = require('lodash');

var SIGHASH_SINGLE_BUG = '0000000000000000000000000000000000000000000000000000000000000001';
var BITS_64_ON = 'ffffffffffffffff';

/**
 * Returns a buffer of length 32 bytes with the hash that needs to be signed
 * for OP_CHECKSIG.
 *
 * @name Signing.sighash
 * @param {Transaction} transaction the transaction to sign
 * @param {number} sighashType the type of the hash
 * @param {number} inputNumber the input index for the signature
 * @param {Script} subscript the script that will be signed
 */
var sighash = function sighash(transaction, sighashType, inputNumber, subscript) {
  var Transaction = require('./transaction');
  var Input = require('./input');

  var i;
  // Copy transaction
  var txcopy = Transaction.shallowCopy(transaction);

  // Copy script
  subscript = new Script(subscript);
  subscript.removeCodeseparators();

  for (i = 0; i < txcopy.inputs.length; i++) {
    // Blank signatures for other inputs
    txcopy.inputs[i] = new Input(txcopy.inputs[i]).setScript(Script.empty());
  }

  txcopy.inputs[inputNumber] = new Input(txcopy.inputs[inputNumber]).setScript(subscript);

  if ((sighashType & 31) === Signature.SIGHASH_NONE ||
    (sighashType & 31) === Signature.SIGHASH_SINGLE) {

    // clear all sequenceNumbers
    for (i = 0; i < txcopy.inputs.length; i++) {
      if (i !== inputNumber) {
        txcopy.inputs[i].sequenceNumber = 0;
      }
    }
  }

  if ((sighashType & 31) === Signature.SIGHASH_NONE) {
    txcopy.outputs = [];

  } else if ((sighashType & 31) === Signature.SIGHASH_SINGLE) {
    // The SIGHASH_SINGLE bug.
    // https://bitcointalk.org/index.php?topic=260595.0
    if (inputNumber >= txcopy.outputs.length) {
      return new Buffer(SIGHASH_SINGLE_BUG, 'hex');
    }

    txcopy.outputs.length = inputNumber + 1;

    for (i = 0; i < inputNumber; i++) {
      txcopy.outputs[i] = new Output({
        satoshis: BN.fromBuffer(new buffer.Buffer(BITS_64_ON, 'hex')),
        script: Script.empty()
      });
    }
  }

  if (sighashType & Signature.SIGHASH_ANYONECANPAY) {
    txcopy.inputs = [txcopy.inputs[inputNumber]];
  }

  var buf = new BufferWriter()
    .write(txcopy.toBuffer())
    .writeInt32LE(sighashType)
    .toBuffer();
  var ret = Hash.sha256sha256(buf);
  ret = new BufferReader(ret).readReverse();
  return ret;
};

/**
 * Create a signature
 *
 * @name Signing.sign
 * @param {Transaction} transaction
 * @param {PrivateKey} privateKey
 * @param {number} sighash
 * @param {number} inputIndex
 * @param {Script} subscript
 * @return {Signature}
 */
function sign(transaction, privateKey, sighashType, inputIndex, subscript) {
  var hashbuf = sighash(transaction, sighashType, inputIndex, subscript);
  var sig = ECDSA.sign(hashbuf, privateKey, 'little').set({
    nhashtype: sighashType
  });
  return sig;
}

/**
 * Verify a signature
 *
 * @name Signing.verify
 * @param {Transaction} transaction
 * @param {Signature} signature
 * @param {PublicKey} publicKey
 * @param {number} inputIndex
 * @param {Script} subscript
 * @return {boolean}
 */
function verify(transaction, signature, publicKey, inputIndex, subscript) {
  $.checkArgument(!_.isUndefined(transaction));
  $.checkArgument(!_.isUndefined(signature) && !_.isUndefined(signature.nhashtype));
  var hashbuf = sighash(transaction, signature.nhashtype, inputIndex, subscript);
  return ECDSA.verify(hashbuf, signature, publicKey, 'little');
}

/**
 * @namespace Signing
 */
module.exports = {
  sighash: sighash,
  sign: sign,
  verify: verify
};

}).call(this,require("buffer").Buffer)
},{"../crypto/bn":6,"../crypto/ecdsa":7,"../crypto/hash":8,"../crypto/signature":11,"../encoding/bufferreader":14,"../encoding/bufferwriter":15,"../script":29,"../util/preconditions":48,"./input":33,"./output":39,"./transaction":42,"buffer":95,"lodash":142}],41:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var $ = require('../util/preconditions');
var inherits = require('inherits');
var BufferUtil = require('../util/buffer');
var JSUtil = require('../util/js');

var PublicKey = require('../publickey');
var errors = require('../errors');
var Signature = require('../crypto/signature');

/**
 * @desc
 * Wrapper around Signature with fields related to signing a transaction specifically
 *
 * @param {Object|string|TransactionSignature} arg
 * @constructor
 */
function TransactionSignature(arg) {
  if (!(this instanceof TransactionSignature)) {
    return new TransactionSignature(arg);
  }
  if (arg instanceof TransactionSignature) {
    return arg;
  }
  if (_.isObject(arg)) {
    return this._fromObject(arg);
  }
  throw new errors.InvalidArgument('TransactionSignatures must be instantiated from an object');
}
inherits(TransactionSignature, Signature);

TransactionSignature.prototype._fromObject = function(arg) {
  this._checkObjectArgs(arg);
  this.publicKey = new PublicKey(arg.publicKey);
  this.prevTxId = BufferUtil.isBuffer(arg.prevTxId) ? arg.prevTxId : new Buffer(arg.prevTxId, 'hex');
  this.outputIndex = arg.outputIndex;
  this.inputIndex = arg.inputIndex;
  this.signature = (arg.signature instanceof Signature) ? arg.signature :
                     BufferUtil.isBuffer(arg.signature) ? Signature.fromBuffer(arg.signature) :
                     Signature.fromString(arg.signature);
  this.sigtype = arg.sigtype;
  return this;
};

TransactionSignature.prototype._checkObjectArgs = function(arg) {
  $.checkArgument(PublicKey(arg.publicKey), 'publicKey');
  $.checkArgument(!_.isUndefined(arg.inputIndex), 'inputIndex');
  $.checkArgument(!_.isUndefined(arg.outputIndex), 'outputIndex');
  $.checkState(_.isNumber(arg.inputIndex), 'inputIndex must be a number');
  $.checkState(_.isNumber(arg.outputIndex), 'outputIndex must be a number');
  $.checkArgument(arg.signature, 'signature');
  $.checkArgument(arg.prevTxId, 'prevTxId');
  $.checkState(arg.signature instanceof Signature ||
               BufferUtil.isBuffer(arg.signature) ||
               JSUtil.isHexa(arg.signature), 'signature must be a buffer or hexa value');
  $.checkState(BufferUtil.isBuffer(arg.prevTxId) ||
               JSUtil.isHexa(arg.prevTxId), 'prevTxId must be a buffer or hexa value');
  $.checkArgument(arg.sigtype, 'sigtype');
  $.checkState(_.isNumber(arg.sigtype), 'sigtype must be a number');
};

/**
 * Serializes a transaction to a plain JS object
 * @return {Object}
 */
TransactionSignature.prototype.toObject = TransactionSignature.prototype.toJSON = function toObject() {
  return {
    publicKey: this.publicKey.toString(),
    prevTxId: this.prevTxId.toString('hex'),
    outputIndex: this.outputIndex,
    inputIndex: this.inputIndex,
    signature: this.signature.toString(),
    sigtype: this.sigtype
  };
};

/**
 * Builds a TransactionSignature from an object
 * @param {Object} object
 * @return {TransactionSignature}
 */
TransactionSignature.fromObject = function(object) {
  $.checkArgument(object);
  return new TransactionSignature(object);
};

module.exports = TransactionSignature;

}).call(this,require("buffer").Buffer)
},{"../crypto/signature":11,"../errors":17,"../publickey":28,"../util/buffer":46,"../util/js":47,"../util/preconditions":48,"buffer":95,"inherits":139,"lodash":142}],42:[function(require,module,exports){
(function (Buffer){
'use strict';

var _ = require('lodash');
var $ = require('../util/preconditions');
var buffer = require('buffer');
var compare = Buffer.compare || require('buffer-compare');

var errors = require('../errors');
var BufferUtil = require('../util/buffer');
var JSUtil = require('../util/js');
var BufferReader = require('../encoding/bufferreader');
var BufferWriter = require('../encoding/bufferwriter');
var Hash = require('../crypto/hash');
var Signature = require('../crypto/signature');
var Sighash = require('./sighash');

var Address = require('../address');
var UnspentOutput = require('./unspentoutput');
var Input = require('./input');
var PublicKeyHashInput = Input.PublicKeyHash;
var PublicKeyInput = Input.PublicKey;
var MultiSigScriptHashInput = Input.MultiSigScriptHash;
var MultiSigInput = Input.MultiSig;
var Output = require('./output');
var Script = require('../script');
var PrivateKey = require('../privatekey');
var BN = require('../crypto/bn');

/**
 * Represents a transaction, a set of inputs and outputs to change ownership of tokens
 *
 * @param {*} serialized
 * @constructor
 */
function Transaction(serialized) {
  if (!(this instanceof Transaction)) {
    return new Transaction(serialized);
  }
  this.inputs = [];
  this.outputs = [];
  this._inputAmount = undefined;
  this._outputAmount = undefined;

  if (serialized) {
    if (serialized instanceof Transaction) {
      return Transaction.shallowCopy(serialized);
    } else if (JSUtil.isHexa(serialized)) {
      this.fromString(serialized);
    } else if (BufferUtil.isBuffer(serialized)) {
      this.fromBuffer(serialized);
    } else if (_.isObject(serialized)) {
      this.fromObject(serialized);
    } else {
      throw new errors.InvalidArgument('Must provide an object or string to deserialize a transaction');
    }
  } else {
    this._newTransaction();
  }
}

var CURRENT_VERSION = 1;
var DEFAULT_NLOCKTIME = 0;
var MAX_BLOCK_SIZE = 1000000;

// Minimum amount for an output for it not to be considered a dust output
Transaction.DUST_AMOUNT = 5460;

// Margin of error to allow fees in the vicinity of the expected value but doesn't allow a big difference
Transaction.FEE_SECURITY_MARGIN = 15;

// max amount of satoshis in circulation
Transaction.MAX_MONEY = 21000000 * 1e8;

// nlocktime limit to be considered block height rather than a timestamp
Transaction.NLOCKTIME_BLOCKHEIGHT_LIMIT = 5e8;

// Max value for an unsigned 32 bit value
Transaction.NLOCKTIME_MAX_VALUE = 4294967295;

// Value used for fee estimation (satoshis per kilobyte)
Transaction.FEE_PER_KB = 10000;

// Safe upper bound for change address script size in bytes
Transaction.CHANGE_OUTPUT_MAX_SIZE = 20 + 4 + 34 + 4;
Transaction.MAXIMUM_EXTRA_SIZE = 4 + 9 + 9 + 4;

/* Constructors and Serialization */

/**
 * Create a 'shallow' copy of the transaction, by serializing and deserializing
 * it dropping any additional information that inputs and outputs may have hold
 *
 * @param {Transaction} transaction
 * @return {Transaction}
 */
Transaction.shallowCopy = function(transaction) {
  var copy = new Transaction(transaction.toBuffer());
  return copy;
};

var hashProperty = {
  configurable: false,
  enumerable: true,
  get: function() {
    return new BufferReader(this._getHash()).readReverse().toString('hex');
  }
};
Object.defineProperty(Transaction.prototype, 'hash', hashProperty);
Object.defineProperty(Transaction.prototype, 'id', hashProperty);

var ioProperty = {
  configurable: false,
  enumerable: true,
  get: function() {
    return this._getInputAmount();
  }
};
Object.defineProperty(Transaction.prototype, 'inputAmount', ioProperty);
ioProperty.get = function() {
  return this._getOutputAmount();
};
Object.defineProperty(Transaction.prototype, 'outputAmount', ioProperty);

/**
 * Retrieve the little endian hash of the transaction (used for serialization)
 * @return {Buffer}
 */
Transaction.prototype._getHash = function() {
  return Hash.sha256sha256(this.toBuffer());
};

/**
 * Retrieve a hexa string that can be used with bitcoind's CLI interface
 * (decoderawtransaction, sendrawtransaction)
 *
 * @param {Object|boolean=} unsafe if true, skip all tests. if it's an object,
 *   it's expected to contain a set of flags to skip certain tests:
 * * `disableAll`: disable all checks
 * * `disableSmallFees`: disable checking for fees that are too small
 * * `disableLargeFees`: disable checking for fees that are too large
 * * `disableIsFullySigned`: disable checking if all inputs are fully signed
 * * `disableDustOutputs`: disable checking if there are no outputs that are dust amounts
 * * `disableMoreOutputThanInput`: disable checking if the transaction spends more bitcoins than the sum of the input amounts
 * @return {string}
 */
Transaction.prototype.serialize = function(unsafe) {
  if (true === unsafe || unsafe && unsafe.disableAll) {
    return this.uncheckedSerialize();
  } else {
    return this.checkedSerialize(unsafe);
  }
};

Transaction.prototype.uncheckedSerialize = Transaction.prototype.toString = function() {
  return this.toBuffer().toString('hex');
};

/**
 * Retrieve a hexa string that can be used with bitcoind's CLI interface
 * (decoderawtransaction, sendrawtransaction)
 *
 * @param {Object} opts allows to skip certain tests. {@see Transaction#serialize}
 * @return {string}
 */
Transaction.prototype.checkedSerialize = function(opts) {
  var serializationError = this.getSerializationError(opts);
  if (serializationError) {
    serializationError.message += ' Use Transaction#uncheckedSerialize if you want to skip security checks. ' +
      'See http://bitcore.io/guide/transaction.html#Serialization for more info.';
    throw serializationError;
  }
  return this.uncheckedSerialize();
};

Transaction.prototype.invalidSatoshis = function() {
  var invalid = false;
  for (var i = 0; i < this.outputs.length; i++) {
    if (this.outputs[i].invalidSatoshis()) {
      invalid = true;
    }
  }
  return invalid;
};

/**
 * Retrieve a possible error that could appear when trying to serialize and
 * broadcast this transaction.
 *
 * @param {Object} opts allows to skip certain tests. {@see Transaction#serialize}
 * @return {bitcore.Error}
 */
Transaction.prototype.getSerializationError = function(opts) {
  opts = opts || {};

  if (this.invalidSatoshis()) {
    return new errors.Transaction.InvalidSatoshis();
  }

  var unspent = this._getUnspentValue();
  var unspentError;
  if (unspent < 0) {
    if (!opts.disableMoreOutputThanInput) {
      unspentError = new errors.Transaction.InvalidOutputAmountSum();
    }
  } else {
    unspentError = this._hasFeeError(opts, unspent);
  }

  return unspentError ||
    this._hasDustOutputs(opts) ||
    this._isMissingSignatures(opts);
};

Transaction.prototype._hasFeeError = function(opts, unspent) {

  if (!_.isUndefined(this._fee) && this._fee !== unspent) {
    return new errors.Transaction.FeeError.Different(
      'Unspent value is ' + unspent + ' but specified fee is ' + this._fee
    );
  }

  if (!opts.disableLargeFees) {
    var maximumFee = Math.floor(Transaction.FEE_SECURITY_MARGIN * this._estimateFee());
    if (unspent > maximumFee) {
      if (this._missingChange()) {
        return new errors.Transaction.ChangeAddressMissing(
          'Fee is too large and no change address was provided'
        );
      }
      return new errors.Transaction.FeeError.TooLarge(
        'expected less than ' + maximumFee + ' but got ' + unspent
      );
    }
  }

  if (!opts.disableSmallFees) {
    var minimumFee = Math.ceil(this._estimateFee() / Transaction.FEE_SECURITY_MARGIN);
    if (unspent < minimumFee) {
      return new errors.Transaction.FeeError.TooSmall(
        'expected more than ' + minimumFee + ' but got ' + unspent
      );
    }
  }
};

Transaction.prototype._missingChange = function() {
  return !this._changeScript;
};

Transaction.prototype._hasDustOutputs = function(opts) {
  if (opts.disableDustOutputs) {
    return;
  }
  var index, output;
  for (index in this.outputs) {
    output = this.outputs[index];
    if (output.satoshis < Transaction.DUST_AMOUNT && !output.script.isDataOut()) {
      return new errors.Transaction.DustOutputs();
    }
  }
};

Transaction.prototype._isMissingSignatures = function(opts) {
  if (opts.disableIsFullySigned) {
    return;
  }
  if (!this.isFullySigned()) {
    return new errors.Transaction.MissingSignatures();
  }
};

Transaction.prototype.inspect = function() {
  return '<Transaction: ' + this.uncheckedSerialize() + '>';
};

Transaction.prototype.toBuffer = function() {
  var writer = new BufferWriter();
  return this.toBufferWriter(writer).toBuffer();
};

Transaction.prototype.toBufferWriter = function(writer) {
  writer.writeUInt32LE(this.version);
  writer.writeVarintNum(this.inputs.length);
  _.each(this.inputs, function(input) {
    input.toBufferWriter(writer);
  });
  writer.writeVarintNum(this.outputs.length);
  _.each(this.outputs, function(output) {
    output.toBufferWriter(writer);
  });
  writer.writeUInt32LE(this.nLockTime);
  return writer;
};

Transaction.prototype.fromBuffer = function(buffer) {
  var reader = new BufferReader(buffer);
  return this.fromBufferReader(reader);
};

Transaction.prototype.fromBufferReader = function(reader) {
  $.checkArgument(!reader.finished(), 'No transaction data received');
  var i, sizeTxIns, sizeTxOuts;

  this.version = reader.readUInt32LE();
  sizeTxIns = reader.readVarintNum();
  for (i = 0; i < sizeTxIns; i++) {
    var input = Input.fromBufferReader(reader);
    this.inputs.push(input);
  }
  sizeTxOuts = reader.readVarintNum();
  for (i = 0; i < sizeTxOuts; i++) {
    this.outputs.push(Output.fromBufferReader(reader));
  }
  this.nLockTime = reader.readUInt32LE();
  return this;
};

Transaction.prototype.toObject = Transaction.prototype.toJSON = function toObject() {
  var inputs = [];
  this.inputs.forEach(function(input) {
    inputs.push(input.toObject());
  });
  var outputs = [];
  this.outputs.forEach(function(output) {
    outputs.push(output.toObject());
  });
  var obj = {
    hash: this.hash,
    version: this.version,
    inputs: inputs,
    outputs: outputs,
    nLockTime: this.nLockTime
  };
  if (this._changeScript) {
    obj.changeScript = this._changeScript.toString();
  }
  if (!_.isUndefined(this._changeIndex)) {
    obj.changeIndex = this._changeIndex;
  }
  if (!_.isUndefined(this._fee)) {
    obj.fee = this._fee;
  }
  return obj;
};

Transaction.prototype.fromObject = function fromObject(arg) {
  /* jshint maxstatements: 20 */
  $.checkArgument(_.isObject(arg) || arg instanceof Transaction);
  var self = this;
  var transaction;
  if (arg instanceof Transaction) {
    transaction = transaction.toObject();
  } else {
    transaction = arg;
  }
  _.each(transaction.inputs, function(input) {
    if (!input.output || !input.output.script) {
      self.uncheckedAddInput(new Input(input));
      return;
    }
    var script = new Script(input.output.script);
    var txin;
    if (script.isPublicKeyHashOut()) {
      txin = new Input.PublicKeyHash(input);
    } else if (script.isScriptHashOut() && input.publicKeys && input.threshold) {
      txin = new Input.MultiSigScriptHash(
        input, input.publicKeys, input.threshold, input.signatures
      );
    } else if (script.isPublicKeyOut()) {
      txin = new Input.PublicKey(input);
    } else {
      throw new errors.Transaction.Input.UnsupportedScript(input.output.script);
    }
    self.addInput(txin);
  });
  _.each(transaction.outputs, function(output) {
    self.addOutput(new Output(output));
  });
  if (transaction.changeIndex) {
    this._changeIndex = transaction.changeIndex;
  }
  if (transaction.changeScript) {
    this._changeScript = new Script(transaction.changeScript);
  }
  if (transaction.fee) {
    this._fee = transaction.fee;
  }
  this.nLockTime = transaction.nLockTime;
  this.version = transaction.version;
  this._checkConsistency(arg);
  return this;
};

Transaction.prototype._checkConsistency = function(arg) {
  if (!_.isUndefined(this._changeIndex)) {
    $.checkState(this._changeScript);
    $.checkState(this.outputs[this._changeIndex]);
    $.checkState(this.outputs[this._changeIndex].script.toString() ===
      this._changeScript.toString());
  }
  if (arg && arg.hash) {
    $.checkState(arg.hash === this.hash, 'Hash in object does not match transaction hash');
  }
};

/**
 * Sets nLockTime so that transaction is not valid until the desired date(a
 * timestamp in seconds since UNIX epoch is also accepted)
 *
 * @param {Date | Number} time
 * @return {Transaction} this
 */
Transaction.prototype.lockUntilDate = function(time) {
  $.checkArgument(time);
  if (_.isNumber(time) && time < Transaction.NLOCKTIME_BLOCKHEIGHT_LIMIT) {
    throw new errors.Transaction.LockTimeTooEarly();
  }
  if (_.isDate(time)) {
    time = time.getTime() / 1000;
  }

  for (var i = 0; i < this.inputs.length; i++) {
    if (this.inputs[i].sequenceNumber === Input.DEFAULT_SEQNUMBER){
      this.inputs[i].sequenceNumber = Input.DEFAULT_LOCKTIME_SEQNUMBER;
    }
  }

  this.nLockTime = time;
  return this;
};

/**
 * Sets nLockTime so that transaction is not valid until the desired block
 * height.
 *
 * @param {Number} height
 * @return {Transaction} this
 */
Transaction.prototype.lockUntilBlockHeight = function(height) {
  $.checkArgument(_.isNumber(height));
  if (height >= Transaction.NLOCKTIME_BLOCKHEIGHT_LIMIT) {
    throw new errors.Transaction.BlockHeightTooHigh();
  }
  if (height < 0) {
    throw new errors.Transaction.NLockTimeOutOfRange();
  }

  for (var i = 0; i < this.inputs.length; i++) {
    if (this.inputs[i].sequenceNumber === Input.DEFAULT_SEQNUMBER){
      this.inputs[i].sequenceNumber = Input.DEFAULT_LOCKTIME_SEQNUMBER;
    }
  }


  this.nLockTime = height;
  return this;
};

/**
 *  Returns a semantic version of the transaction's nLockTime.
 *  @return {Number|Date}
 *  If nLockTime is 0, it returns null,
 *  if it is < 500000000, it returns a block height (number)
 *  else it returns a Date object.
 */
Transaction.prototype.getLockTime = function() {
  if (!this.nLockTime) {
    return null;
  }
  if (this.nLockTime < Transaction.NLOCKTIME_BLOCKHEIGHT_LIMIT) {
    return this.nLockTime;
  }
  return new Date(1000 * this.nLockTime);
};

Transaction.prototype.fromString = function(string) {
  this.fromBuffer(new buffer.Buffer(string, 'hex'));
};

Transaction.prototype._newTransaction = function() {
  this.version = CURRENT_VERSION;
  this.nLockTime = DEFAULT_NLOCKTIME;
};

/* Transaction creation interface */

/**
 * @typedef {Object} Transaction~fromObject
 * @property {string} prevTxId
 * @property {number} outputIndex
 * @property {(Buffer|string|Script)} script
 * @property {number} satoshis
 */

/**
 * Add an input to this transaction. This is a high level interface
 * to add an input, for more control, use @{link Transaction#addInput}.
 *
 * Can receive, as output information, the output of bitcoind's `listunspent` command,
 * and a slightly fancier format recognized by bitcore:
 *
 * ```
 * {
 *  address: 'mszYqVnqKoQx4jcTdJXxwKAissE3Jbrrc1',
 *  txId: 'a477af6b2667c29670467e4e0728b685ee07b240235771862318e29ddbe58458',
 *  outputIndex: 0,
 *  script: Script.empty(),
 *  satoshis: 1020000
 * }
 * ```
 * Where `address` can be either a string or a bitcore Address object. The
 * same is true for `script`, which can be a string or a bitcore Script.
 *
 * Beware that this resets all the signatures for inputs (in further versions,
 * SIGHASH_SINGLE or SIGHASH_NONE signatures will not be reset).
 *
 * @example
 * ```javascript
 * var transaction = new Transaction();
 *
 * // From a pay to public key hash output from bitcoind's listunspent
 * transaction.from({'txid': '0000...', vout: 0, amount: 0.1, scriptPubKey: 'OP_DUP ...'});
 *
 * // From a pay to public key hash output
 * transaction.from({'txId': '0000...', outputIndex: 0, satoshis: 1000, script: 'OP_DUP ...'});
 *
 * // From a multisig P2SH output
 * transaction.from({'txId': '0000...', inputIndex: 0, satoshis: 1000, script: '... OP_HASH'},
 *                  ['03000...', '02000...'], 2);
 * ```
 *
 * @param {(Array.<Transaction~fromObject>|Transaction~fromObject)} utxo
 * @param {Array=} pubkeys
 * @param {number=} threshold
 */
Transaction.prototype.from = function(utxo, pubkeys, threshold) {
  if (_.isArray(utxo)) {
    var self = this;
    _.each(utxo, function(utxo) {
      self.from(utxo, pubkeys, threshold);
    });
    return this;
  }
  var exists = _.any(this.inputs, function(input) {
    // TODO: Maybe prevTxId should be a string? Or defined as read only property?
    return input.prevTxId.toString('hex') === utxo.txId && input.outputIndex === utxo.outputIndex;
  });
  if (exists) {
    return this;
  }
  if (pubkeys && threshold) {
    this._fromMultisigUtxo(utxo, pubkeys, threshold);
  } else {
    this._fromNonP2SH(utxo);
  }
  return this;
};

Transaction.prototype._fromNonP2SH = function(utxo) {
  var clazz;
  utxo = new UnspentOutput(utxo);
  if (utxo.script.isPublicKeyHashOut()) {
    clazz = PublicKeyHashInput;
  } else if (utxo.script.isPublicKeyOut()) {
    clazz = PublicKeyInput;
  } else {
    clazz = Input;
  }
  this.addInput(new clazz({
    output: new Output({
      script: utxo.script,
      satoshis: utxo.satoshis
    }),
    prevTxId: utxo.txId,
    outputIndex: utxo.outputIndex,
    script: Script.empty()
  }));
};

Transaction.prototype._fromMultisigUtxo = function(utxo, pubkeys, threshold) {
  $.checkArgument(threshold <= pubkeys.length,
    'Number of required signatures must be greater than the number of public keys');
  var clazz;
  utxo = new UnspentOutput(utxo);
  if (utxo.script.isMultisigOut()) {
    clazz = MultiSigInput;
  } else if (utxo.script.isScriptHashOut()) {
    clazz = MultiSigScriptHashInput;
  } else {
    throw new Error("@TODO");
  }
  this.addInput(new clazz({
    output: new Output({
      script: utxo.script,
      satoshis: utxo.satoshis
    }),
    prevTxId: utxo.txId,
    outputIndex: utxo.outputIndex,
    script: Script.empty()
  }, pubkeys, threshold));
};

/**
 * Add an input to this transaction. The input must be an instance of the `Input` class.
 * It should have information about the Output that it's spending, but if it's not already
 * set, two additional parameters, `outputScript` and `satoshis` can be provided.
 *
 * @param {Input} input
 * @param {String|Script} outputScript
 * @param {number} satoshis
 * @return Transaction this, for chaining
 */
Transaction.prototype.addInput = function(input, outputScript, satoshis) {
  $.checkArgumentType(input, Input, 'input');
  if (!input.output && (_.isUndefined(outputScript) || _.isUndefined(satoshis))) {
    throw new errors.Transaction.NeedMoreInfo('Need information about the UTXO script and satoshis');
  }
  if (!input.output && outputScript && !_.isUndefined(satoshis)) {
    outputScript = outputScript instanceof Script ? outputScript : new Script(outputScript);
    $.checkArgumentType(satoshis, 'number', 'satoshis');
    input.output = new Output({
      script: outputScript,
      satoshis: satoshis
    });
  }
  return this.uncheckedAddInput(input);
};

/**
 * Add an input to this transaction, without checking that the input has information about
 * the output that it's spending.
 *
 * @param {Input} input
 * @return Transaction this, for chaining
 */
Transaction.prototype.uncheckedAddInput = function(input) {
  $.checkArgumentType(input, Input, 'input');
  this.inputs.push(input);
  this._inputAmount = undefined;
  this._updateChangeOutput();
  return this;
};

/**
 * Returns true if the transaction has enough info on all inputs to be correctly validated
 *
 * @return {boolean}
 */
Transaction.prototype.hasAllUtxoInfo = function() {
  return _.all(this.inputs.map(function(input) {
    return !!input.output;
  }));
};

/**
 * Manually set the fee for this transaction. Beware that this resets all the signatures
 * for inputs (in further versions, SIGHASH_SINGLE or SIGHASH_NONE signatures will not
 * be reset).
 *
 * @param {number} amount satoshis to be sent
 * @return {Transaction} this, for chaining
 */
Transaction.prototype.fee = function(amount) {
  $.checkArgument(_.isNumber(amount), 'amount must be a number');
  this._fee = amount;
  this._updateChangeOutput();
  return this;
};

/**
 * Manually set the fee per KB for this transaction. Beware that this resets all the signatures
 * for inputs (in further versions, SIGHASH_SINGLE or SIGHASH_NONE signatures will not
 * be reset).
 *
 * @param {number} amount satoshis per KB to be sent
 * @return {Transaction} this, for chaining
 */
Transaction.prototype.feePerKb = function(amount) {
  $.checkArgument(_.isNumber(amount), 'amount must be a number');
  this._feePerKb = amount;
  this._updateChangeOutput();
  return this;
};

/* Output management */

/**
 * Set the change address for this transaction
 *
 * Beware that this resets all the signatures for inputs (in further versions,
 * SIGHASH_SINGLE or SIGHASH_NONE signatures will not be reset).
 *
 * @param {Address} address An address for change to be sent to.
 * @return {Transaction} this, for chaining
 */
Transaction.prototype.change = function(address) {
  $.checkArgument(address, 'address is required');
  this._changeScript = Script.fromAddress(address);
  this._updateChangeOutput();
  return this;
};


/**
 * @return {Output} change output, if it exists
 */
Transaction.prototype.getChangeOutput = function() {
  if (!_.isUndefined(this._changeIndex)) {
    return this.outputs[this._changeIndex];
  }
  return null;
};

/**
 * @typedef {Object} Transaction~toObject
 * @property {(string|Address)} address
 * @property {number} satoshis
 */

/**
 * Add an output to the transaction.
 *
 * Beware that this resets all the signatures for inputs (in further versions,
 * SIGHASH_SINGLE or SIGHASH_NONE signatures will not be reset).
 *
 * @param {(string|Address|Array.<Transaction~toObject>)} address
 * @param {number} amount in satoshis
 * @return {Transaction} this, for chaining
 */
Transaction.prototype.to = function(address, amount) {
  if (_.isArray(address)) {
    var self = this;
    _.each(address, function(to) {
      self.to(to.address, to.satoshis);
    });
    return this;
  }

  $.checkArgument(
    JSUtil.isNaturalNumber(amount),
    'Amount is expected to be a positive integer'
  );
  this.addOutput(new Output({
    script: Script(new Address(address)),
    satoshis: amount
  }));
  return this;
};

/**
 * Add an OP_RETURN output to the transaction.
 *
 * Beware that this resets all the signatures for inputs (in further versions,
 * SIGHASH_SINGLE or SIGHASH_NONE signatures will not be reset).
 *
 * @param {Buffer|string} value the data to be stored in the OP_RETURN output.
 *    In case of a string, the UTF-8 representation will be stored
 * @return {Transaction} this, for chaining
 */
Transaction.prototype.addData = function(value) {
  this.addOutput(new Output({
    script: Script.buildDataOut(value),
    satoshis: 0
  }));
  return this;
};


/**
 * Add an output to the transaction.
 *
 * @param {Output} output the output to add.
 * @return {Transaction} this, for chaining
 */
Transaction.prototype.addOutput = function(output) {
  $.checkArgumentType(output, Output, 'output');
  this._addOutput(output);
  this._updateChangeOutput();
  return this;
};


/**
 * Remove all outputs from the transaction.
 *
 * @return {Transaction} this, for chaining
 */
Transaction.prototype.clearOutputs = function() {
  this.outputs = [];
  this._clearSignatures();
  this._outputAmount = undefined;
  this._changeIndex = undefined;
  this._updateChangeOutput();
  return this;
};


Transaction.prototype._addOutput = function(output) {
  this.outputs.push(output);
  this._outputAmount = undefined;
};


/**
 * Calculates or gets the total output amount in satoshis
 *
 * @return {Number} the transaction total output amount
 */
Transaction.prototype._getOutputAmount = function() {
  if (_.isUndefined(this._outputAmount)) {
    var self = this;
    this._outputAmount = 0;
    _.each(this.outputs, function(output) {
      self._outputAmount += output.satoshis;
    });
  }
  return this._outputAmount;
};


/**
 * Calculates or gets the total input amount in satoshis
 *
 * @return {Number} the transaction total input amount
 */
Transaction.prototype._getInputAmount = function() {
  if (_.isUndefined(this._inputAmount)) {
    var self = this;
    this._inputAmount = 0;
    _.each(this.inputs, function(input) {
      if (_.isUndefined(input.output)) {
        throw new errors.Transaction.Input.MissingPreviousOutput();
      }
      self._inputAmount += input.output.satoshis;
    });
  }
  return this._inputAmount;
};

Transaction.prototype._updateChangeOutput = function() {
  if (!this._changeScript) {
    return;
  }
  this._clearSignatures();
  if (!_.isUndefined(this._changeIndex)) {
    this._removeOutput(this._changeIndex);
  }
  var available = this._getUnspentValue();
  var fee = this.getFee();
  var changeAmount = available - fee;
  if (changeAmount > 0) {
    this._changeIndex = this.outputs.length;
    this._addOutput(new Output({
      script: this._changeScript,
      satoshis: changeAmount
    }));
  } else {
    this._changeIndex = undefined;
  }
};
/**
 * Calculates the fee of the transaction.
 *
 * If there's a fixed fee set, return that.
 *
 * If there is no change output set, the fee is the
 * total value of the outputs minus inputs. Note that
 * a serialized transaction only specifies the value
 * of its outputs. (The value of inputs are recorded
 * in the previous transaction outputs being spent.)
 * This method therefore raises a "MissingPreviousOutput"
 * error when called on a serialized transaction.
 *
 * If there's no fee set and no change address,
 * estimate the fee based on size.
 *
 * @return {Number} fee of this transaction in satoshis
 */
Transaction.prototype.getFee = function() {
  if (this.isCoinbase()) {
    return 0;
  }
  if (!_.isUndefined(this._fee)) {
    return this._fee;
  }
  // if no change output is set, fees should equal all the unspent amount
  if (!this._changeScript) {
    return this._getUnspentValue();
  }
  return this._estimateFee();
};

/**
 * Estimates fee from serialized transaction size in bytes.
 */
Transaction.prototype._estimateFee = function() {
  var estimatedSize = this._estimateSize();
  var available = this._getUnspentValue();
  return Transaction._estimateFee(estimatedSize, available, this._feePerKb);
};

Transaction.prototype._getUnspentValue = function() {
  return this._getInputAmount() - this._getOutputAmount();
};

Transaction.prototype._clearSignatures = function() {
  _.each(this.inputs, function(input) {
    input.clearSignatures();
  });
};

Transaction._estimateFee = function(size, amountAvailable, feePerKb) {
  var fee = Math.ceil(size / 1000) * (feePerKb || Transaction.FEE_PER_KB);
  if (amountAvailable > fee) {
    size += Transaction.CHANGE_OUTPUT_MAX_SIZE;
  }
  return Math.ceil(size / 1000) * (feePerKb || Transaction.FEE_PER_KB);
};

Transaction.prototype._estimateSize = function() {
  var result = Transaction.MAXIMUM_EXTRA_SIZE;
  _.each(this.inputs, function(input) {
    result += input._estimateSize();
  });
  _.each(this.outputs, function(output) {
    result += output.script.toBuffer().length + 9;
  });
  return result;
};

Transaction.prototype._removeOutput = function(index) {
  var output = this.outputs[index];
  this.outputs = _.without(this.outputs, output);
  this._outputAmount = undefined;
};

Transaction.prototype.removeOutput = function(index) {
  this._removeOutput(index);
  this._updateChangeOutput();
};

/**
 * Sort a transaction's inputs and outputs according to BIP69
 *
 * @see {https://github.com/bitcoin/bips/blob/master/bip-0069.mediawiki}
 * @return {Transaction} this
 */
Transaction.prototype.sort = function() {
  this.sortInputs(function(inputs) {
    var copy = Array.prototype.concat.apply([], inputs);
    copy.sort(function(first, second) {
      return compare(first.prevTxId, second.prevTxId)
        || first.outputIndex - second.outputIndex;
    });
    return copy;
  });
  this.sortOutputs(function(outputs) {
    var copy = Array.prototype.concat.apply([], outputs);
    copy.sort(function(first, second) {
      return first.satoshis - second.satoshis
        || compare(first.script.toBuffer(), second.script.toBuffer());
    });
    return copy;
  });
  return this;
};

/**
 * Randomize this transaction's outputs ordering. The shuffling algorithm is a
 * version of the Fisher-Yates shuffle, provided by lodash's _.shuffle().
 *
 * @return {Transaction} this
 */
Transaction.prototype.shuffleOutputs = function() {
  return this.sortOutputs(_.shuffle);
};

/**
 * Sort this transaction's outputs, according to a given sorting function that
 * takes an array as argument and returns a new array, with the same elements
 * but with a different order. The argument function MUST NOT modify the order
 * of the original array
 *
 * @param {Function} sortingFunction
 * @return {Transaction} this
 */
Transaction.prototype.sortOutputs = function(sortingFunction) {
  var outs = sortingFunction(this.outputs);
  return this._newOutputOrder(outs);
};

/**
 * Sort this transaction's inputs, according to a given sorting function that
 * takes an array as argument and returns a new array, with the same elements
 * but with a different order.
 *
 * @param {Function} sortingFunction
 * @return {Transaction} this
 */
Transaction.prototype.sortInputs = function(sortingFunction) {
  this.inputs = sortingFunction(this.inputs);
  this._clearSignatures();
  return this;
};

Transaction.prototype._newOutputOrder = function(newOutputs) {
  var isInvalidSorting = (this.outputs.length !== newOutputs.length ||
                          _.difference(this.outputs, newOutputs).length !== 0);
  if (isInvalidSorting) {
    throw new errors.Transaction.InvalidSorting();
  }

  if (!_.isUndefined(this._changeIndex)) {
    var changeOutput = this.outputs[this._changeIndex];
    this._changeIndex = _.findIndex(newOutputs, changeOutput);
  }

  this.outputs = newOutputs;
  return this;
};

Transaction.prototype.removeInput = function(txId, outputIndex) {
  var index;
  if (!outputIndex && _.isNumber(txId)) {
    index = txId;
  } else {
    index = _.findIndex(this.inputs, function(input) {
      return input.prevTxId.toString('hex') === txId && input.outputIndex === outputIndex;
    });
  }
  if (index < 0 || index >= this.inputs.length) {
    throw new errors.Transaction.InvalidIndex(index, this.inputs.length);
  }
  var input = this.inputs[index];
  this.inputs = _.without(this.inputs, input);
  this._inputAmount = undefined;
  this._updateChangeOutput();
};

/* Signature handling */

/**
 * Sign the transaction using one or more private keys.
 *
 * It tries to sign each input, verifying that the signature will be valid
 * (matches a public key).
 *
 * @param {Array|String|PrivateKey} privateKey
 * @param {number} sigtype
 * @return {Transaction} this, for chaining
 */
Transaction.prototype.sign = function(privateKey, sigtype) {
  $.checkState(this.hasAllUtxoInfo());
  var self = this;
  if (_.isArray(privateKey)) {
    _.each(privateKey, function(privateKey) {
      self.sign(privateKey, sigtype);
    });
    return this;
  }
  _.each(this.getSignatures(privateKey, sigtype), function(signature) {
    self.applySignature(signature);
  });
  return this;
};

Transaction.prototype.getSignatures = function(privKey, sigtype) {
  privKey = new PrivateKey(privKey);
  sigtype = sigtype || Signature.SIGHASH_ALL;
  var transaction = this;
  var results = [];
  var hashData = Hash.sha256ripemd160(privKey.publicKey.toBuffer());
  _.each(this.inputs, function forEachInput(input, index) {
    _.each(input.getSignatures(transaction, privKey, index, sigtype, hashData), function(signature) {
      results.push(signature);
    });
  });
  return results;
};

/**
 * Add a signature to the transaction
 *
 * @param {Object} signature
 * @param {number} signature.inputIndex
 * @param {number} signature.sigtype
 * @param {PublicKey} signature.publicKey
 * @param {Signature} signature.signature
 * @return {Transaction} this, for chaining
 */
Transaction.prototype.applySignature = function(signature) {
  this.inputs[signature.inputIndex].addSignature(this, signature);
  return this;
};

Transaction.prototype.isFullySigned = function() {
  _.each(this.inputs, function(input) {
    if (input.isFullySigned === Input.prototype.isFullySigned) {
      throw new errors.Transaction.UnableToVerifySignature(
        'Unrecognized script kind, or not enough information to execute script.' +
        'This usually happens when creating a transaction from a serialized transaction'
      );
    }
  });
  return _.all(_.map(this.inputs, function(input) {
    return input.isFullySigned();
  }));
};

Transaction.prototype.isValidSignature = function(signature) {
  var self = this;
  if (this.inputs[signature.inputIndex].isValidSignature === Input.prototype.isValidSignature) {
    throw new errors.Transaction.UnableToVerifySignature(
      'Unrecognized script kind, or not enough information to execute script.' +
      'This usually happens when creating a transaction from a serialized transaction'
    );
  }
  return this.inputs[signature.inputIndex].isValidSignature(self, signature);
};

/**
 * @returns {bool} whether the signature is valid for this transaction input
 */
Transaction.prototype.verifySignature = function(sig, pubkey, nin, subscript) {
  return Sighash.verify(this, sig, pubkey, nin, subscript);
};

/**
 * Check that a transaction passes basic sanity tests. If not, return a string
 * describing the error. This function contains the same logic as
 * CheckTransaction in bitcoin core.
 */
Transaction.prototype.verify = function() {
  // Basic checks that don't depend on any context
  if (this.inputs.length === 0) {
    return 'transaction txins empty';
  }

  if (this.outputs.length === 0) {
    return 'transaction txouts empty';
  }

  // Check for negative or overflow output values
  var valueoutbn = new BN(0);
  for (var i = 0; i < this.outputs.length; i++) {
    var txout = this.outputs[i];

    if (txout.invalidSatoshis()) {
      return 'transaction txout ' + i + ' satoshis is invalid';
    }
    if (txout._satoshisBN.gt(new BN(Transaction.MAX_MONEY, 10))) {
      return 'transaction txout ' + i + ' greater than MAX_MONEY';
    }
    valueoutbn = valueoutbn.add(txout._satoshisBN);
    if (valueoutbn.gt(new BN(Transaction.MAX_MONEY))) {
      return 'transaction txout ' + i + ' total output greater than MAX_MONEY';
    }
  }

  // Size limits
  if (this.toBuffer().length > MAX_BLOCK_SIZE) {
    return 'transaction over the maximum block size';
  }

  // Check for duplicate inputs
  var txinmap = {};
  for (i = 0; i < this.inputs.length; i++) {
    var txin = this.inputs[i];

    var inputid = txin.prevTxId + ':' + txin.outputIndex;
    if (!_.isUndefined(txinmap[inputid])) {
      return 'transaction input ' + i + ' duplicate input';
    }
    txinmap[inputid] = true;
  }

  var isCoinbase = this.isCoinbase();
  if (isCoinbase) {
    var buf = this.inputs[0]._scriptBuffer;
    if (buf.length < 2 || buf.length > 100) {
      return 'coinbase transaction script size invalid';
    }
  } else {
    for (i = 0; i < this.inputs.length; i++) {
      if (this.inputs[i].isNull()) {
        return 'transaction input ' + i + ' has null input';
      }
    }
  }
  return true;
};

/**
 * Analogous to bitcoind's IsCoinBase function in transaction.h
 */
Transaction.prototype.isCoinbase = function() {
  return (this.inputs.length === 1 && this.inputs[0].isNull());
};

/**
 * Determines if this transaction can be replaced in the mempool with another
 * transaction that provides a sufficiently higher fee (RBF).
 */
Transaction.prototype.isRBF = function() {
  for (var i = 0; i < this.inputs.length; i++) {
    var input = this.inputs[i];
    if (input.sequenceNumber < Input.MAXINT - 1) {
      return true;
    }
  }
  return false;
};

/**
 * Enable this transaction to be replaced in the mempool (RBF) if a transaction
 * includes a sufficiently higher fee. It will set the sequenceNumber to
 * DEFAULT_RBF_SEQNUMBER for all inputs if the sequence number does not
 * already enable RBF.
 */
Transaction.prototype.enableRBF = function() {
  for (var i = 0; i < this.inputs.length; i++) {
    var input = this.inputs[i];
    if (input.sequenceNumber >= Input.MAXINT - 1) {
      input.sequenceNumber = Input.DEFAULT_RBF_SEQNUMBER;
    }
  }
  return this;
};

module.exports = Transaction;

}).call(this,require("buffer").Buffer)
},{"../address":1,"../crypto/bn":6,"../crypto/hash":8,"../crypto/signature":11,"../encoding/bufferreader":14,"../encoding/bufferwriter":15,"../errors":17,"../privatekey":27,"../script":29,"../util/buffer":46,"../util/js":47,"../util/preconditions":48,"./input":33,"./output":39,"./sighash":40,"./unspentoutput":43,"buffer":95,"buffer-compare":93,"lodash":142}],43:[function(require,module,exports){
'use strict';

var _ = require('lodash');
var $ = require('../util/preconditions');
var JSUtil = require('../util/js');

var Script = require('../script');
var Address = require('../address');
var Unit = require('../unit');

/**
 * Represents an unspent output information: its script, associated amount and address,
 * transaction id and output index.
 *
 * @constructor
 * @param {object} data
 * @param {string} data.txid the previous transaction id
 * @param {string=} data.txId alias for `txid`
 * @param {number} data.vout the index in the transaction
 * @param {number=} data.outputIndex alias for `vout`
 * @param {string|Script} data.scriptPubKey the script that must be resolved to release the funds
 * @param {string|Script=} data.script alias for `scriptPubKey`
 * @param {number} data.amount amount of bitcoins associated
 * @param {number=} data.satoshis alias for `amount`, but expressed in satoshis (1 BTC = 1e8 satoshis)
 * @param {string|Address=} data.address the associated address to the script, if provided
 */
function UnspentOutput(data) {
  /* jshint maxcomplexity: 20 */
  /* jshint maxstatements: 20 */
  if (!(this instanceof UnspentOutput)) {
    return new UnspentOutput(data);
  }
  $.checkArgument(_.isObject(data), 'Must provide an object from where to extract data');
  var address = data.address ? new Address(data.address) : undefined;
  var txId = data.txid ? data.txid : data.txId;
  if (!txId || !JSUtil.isHexaString(txId) || txId.length > 64) {
    // TODO: Use the errors library
    throw new Error('Invalid TXID in object', data);
  }
  var outputIndex = _.isUndefined(data.vout) ? data.outputIndex : data.vout;
  if (!_.isNumber(outputIndex)) {
    throw new Error('Invalid outputIndex, received ' + outputIndex);
  }
  $.checkArgument(!_.isUndefined(data.scriptPubKey) || !_.isUndefined(data.script),
                  'Must provide the scriptPubKey for that output!');
  var script = new Script(data.scriptPubKey || data.script);
  $.checkArgument(!_.isUndefined(data.amount) || !_.isUndefined(data.satoshis),
                  'Must provide an amount for the output');
  var amount = !_.isUndefined(data.amount) ? new Unit.fromBTC(data.amount).toSatoshis() : data.satoshis;
  $.checkArgument(_.isNumber(amount), 'Amount must be a number');
  JSUtil.defineImmutable(this, {
    address: address,
    txId: txId,
    outputIndex: outputIndex,
    script: script,
    satoshis: amount
  });
}

/**
 * Provide an informative output when displaying this object in the console
 * @returns string
 */
UnspentOutput.prototype.inspect = function() {
  return '<UnspentOutput: ' + this.txId + ':' + this.outputIndex +
         ', satoshis: ' + this.satoshis + ', address: ' + this.address + '>';
};

/**
 * String representation: just "txid:index"
 * @returns string
 */
UnspentOutput.prototype.toString = function() {
  return this.txId + ':' + this.outputIndex;
};

/**
 * Deserialize an UnspentOutput from an object
 * @param {object|string} data
 * @return UnspentOutput
 */
UnspentOutput.fromObject = function(data) {
  return new UnspentOutput(data);
};

/**
 * Returns a plain object (no prototype or methods) with the associated info for this output
 * @return {object}
 */
UnspentOutput.prototype.toObject = UnspentOutput.prototype.toJSON = function toObject() {
  return {
    address: this.address ? this.address.toString() : undefined,
    txid: this.txId,
    vout: this.outputIndex,
    scriptPubKey: this.script.toBuffer().toString('hex'),
    amount: Unit.fromSatoshis(this.satoshis).toBTC()
  };
};

module.exports = UnspentOutput;

},{"../address":1,"../script":29,"../unit":44,"../util/js":47,"../util/preconditions":48,"lodash":142}],44:[function(require,module,exports){
'use strict';

var _ = require('lodash');

var errors = require('./errors');
var $ = require('./util/preconditions');

var UNITS = {
  'BTC'      : [1e8, 8],
  'mBTC'     : [1e5, 5],
  'uBTC'     : [1e2, 2],
  'bits'     : [1e2, 2],
  'satoshis' : [1, 0]
};

/**
 * Utility for handling and converting bitcoins units. The supported units are
 * BTC, mBTC, bits (also named uBTC) and satoshis. A unit instance can be created with an
 * amount and a unit code, or alternatively using static methods like {fromBTC}.
 * It also allows to be created from a fiat amount and the exchange rate, or
 * alternatively using the {fromFiat} static method.
 * You can consult for different representation of a unit instance using it's
 * {to} method, the fixed unit methods like {toSatoshis} or alternatively using
 * the unit accessors. It also can be converted to a fiat amount by providing the
 * corresponding BTC/fiat exchange rate.
 *
 * @example
 * ```javascript
 * var sats = Unit.fromBTC(1.3).toSatoshis();
 * var mili = Unit.fromBits(1.3).to(Unit.mBTC);
 * var bits = Unit.fromFiat(1.3, 350).bits;
 * var btc = new Unit(1.3, Unit.bits).BTC;
 * ```
 *
 * @param {Number} amount - The amount to be represented
 * @param {String|Number} code - The unit of the amount or the exchange rate
 * @returns {Unit} A new instance of an Unit
 * @constructor
 */
function Unit(amount, code) {
  if (!(this instanceof Unit)) {
    return new Unit(amount, code);
  }

  // convert fiat to BTC
  if (_.isNumber(code)) {
    if (code <= 0) {
      throw new errors.Unit.InvalidRate(code);
    }
    amount = amount / code;
    code = Unit.BTC;
  }

  this._value = this._from(amount, code);

  var self = this;
  var defineAccesor = function(key) {
    Object.defineProperty(self, key, {
      get: function() { return self.to(key); },
      enumerable: true,
    });
  };

  Object.keys(UNITS).forEach(defineAccesor);
}

Object.keys(UNITS).forEach(function(key) {
  Unit[key] = key;
});

/**
 * Returns a Unit instance created from JSON string or object
 *
 * @param {String|Object} json - JSON with keys: amount and code
 * @returns {Unit} A Unit instance
 */
Unit.fromObject = function fromObject(data){
  $.checkArgument(_.isObject(data), 'Argument is expected to be an object');
  return new Unit(data.amount, data.code);
};

/**
 * Returns a Unit instance created from an amount in BTC
 *
 * @param {Number} amount - The amount in BTC
 * @returns {Unit} A Unit instance
 */
Unit.fromBTC = function(amount) {
  return new Unit(amount, Unit.BTC);
};

/**
 * Returns a Unit instance created from an amount in mBTC
 *
 * @param {Number} amount - The amount in mBTC
 * @returns {Unit} A Unit instance
 */
Unit.fromMillis = Unit.fromMilis = function(amount) {
  return new Unit(amount, Unit.mBTC);
};

/**
 * Returns a Unit instance created from an amount in bits
 *
 * @param {Number} amount - The amount in bits
 * @returns {Unit} A Unit instance
 */
Unit.fromMicros = Unit.fromBits = function(amount) {
  return new Unit(amount, Unit.bits);
};

/**
 * Returns a Unit instance created from an amount in satoshis
 *
 * @param {Number} amount - The amount in satoshis
 * @returns {Unit} A Unit instance
 */
Unit.fromSatoshis = function(amount) {
  return new Unit(amount, Unit.satoshis);
};

/**
 * Returns a Unit instance created from a fiat amount and exchange rate.
 *
 * @param {Number} amount - The amount in fiat
 * @param {Number} rate - The exchange rate BTC/fiat
 * @returns {Unit} A Unit instance
 */
Unit.fromFiat = function(amount, rate) {
  return new Unit(amount, rate);
};

Unit.prototype._from = function(amount, code) {
  if (!UNITS[code]) {
    throw new errors.Unit.UnknownCode(code);
  }
  return parseInt((amount * UNITS[code][0]).toFixed());
};

/**
 * Returns the value represented in the specified unit
 *
 * @param {String|Number} code - The unit code or exchange rate
 * @returns {Number} The converted value
 */
Unit.prototype.to = function(code) {
  if (_.isNumber(code)) {
    if (code <= 0) {
      throw new errors.Unit.InvalidRate(code);
    }
    return parseFloat((this.BTC * code).toFixed(2));
  }

  if (!UNITS[code]) {
    throw new errors.Unit.UnknownCode(code);
  }

  var value = this._value / UNITS[code][0];
  return parseFloat(value.toFixed(UNITS[code][1]));
};

/**
 * Returns the value represented in BTC
 *
 * @returns {Number} The value converted to BTC
 */
Unit.prototype.toBTC = function() {
  return this.to(Unit.BTC);
};

/**
 * Returns the value represented in mBTC
 *
 * @returns {Number} The value converted to mBTC
 */
Unit.prototype.toMillis = Unit.prototype.toMilis = function() {
  return this.to(Unit.mBTC);
};

/**
 * Returns the value represented in bits
 *
 * @returns {Number} The value converted to bits
 */
Unit.prototype.toMicros = Unit.prototype.toBits = function() {
  return this.to(Unit.bits);
};

/**
 * Returns the value represented in satoshis
 *
 * @returns {Number} The value converted to satoshis
 */
Unit.prototype.toSatoshis = function() {
  return this.to(Unit.satoshis);
};

/**
 * Returns the value represented in fiat
 *
 * @param {string} rate - The exchange rate between BTC/currency
 * @returns {Number} The value converted to satoshis
 */
Unit.prototype.atRate = function(rate) {
  return this.to(rate);
};

/**
 * Returns a the string representation of the value in satoshis
 *
 * @returns {string} the value in satoshis
 */
Unit.prototype.toString = function() {
  return this.satoshis + ' satoshis';
};

/**
 * Returns a plain object representation of the Unit
 *
 * @returns {Object} An object with the keys: amount and code
 */
Unit.prototype.toObject = Unit.prototype.toJSON = function toObject() {
  return {
    amount: this.BTC,
    code: Unit.BTC
  };
};

/**
 * Returns a string formatted for the console
 *
 * @returns {string} the value in satoshis
 */
Unit.prototype.inspect = function() {
  return '<Unit: ' + this.toString() + '>';
};

module.exports = Unit;

},{"./errors":17,"./util/preconditions":48,"lodash":142}],45:[function(require,module,exports){
'use strict';

var _ = require('lodash');
var URL = require('url');

var Address = require('./address');
var Unit = require('./unit');

/**
 * Bitcore URI
 *
 * Instantiate an URI from a bitcoin URI String or an Object. An URI instance
 * can be created with a bitcoin uri string or an object. All instances of
 * URI are valid, the static method isValid allows checking before instantiation.
 *
 * All standard parameters can be found as members of the class, the address
 * is represented using an {Address} instance and the amount is represented in
 * satoshis. Any other non-standard parameters can be found under the extra member.
 *
 * @example
 * ```javascript
 *
 * var uri = new URI('dash:XsV4GHVKGTjQFvwB7c6mYsGV3Mxf7iser6?amount=1.2');
 * console.log(uri.address, uri.amount);
 * ```
 *
 * @param {string|Object} data - A bitcoin URI string or an Object
 * @param {Array.<string>=} knownParams - Required non-standard params
 * @throws {TypeError} Invalid bitcoin address
 * @throws {TypeError} Invalid amount
 * @throws {Error} Unknown required argument
 * @returns {URI} A new valid and frozen instance of URI
 * @constructor
 */
var URI = function(data, knownParams) {
  if (!(this instanceof URI)) {
    return new URI(data, knownParams);
  }

  this.extras = {};
  this.knownParams = knownParams || [];
  this.address = this.network = this.amount = this.message = null;

  if (typeof(data) === 'string') {
    var params = URI.parse(data);
    if (params.amount) {
      params.amount = this._parseAmount(params.amount);
    }
    this._fromObject(params);
  } else if (typeof(data) === 'object') {
    this._fromObject(data);
  } else {
    throw new TypeError('Unrecognized data format.');
  }
};

/**
 * Instantiate a URI from a String
 *
 * @param {string} str - JSON string or object of the URI
 * @returns {URI} A new instance of a URI
 */
URI.fromString = function fromString(str) {
  if (typeof(str) !== 'string') {
    throw new TypeError('Expected a string');
  }
  return new URI(str);
};

/**
 * Instantiate a URI from an Object
 *
 * @param {Object} data - object of the URI
 * @returns {URI} A new instance of a URI
 */
URI.fromObject = function fromObject(json) {
  return new URI(json);
};

/**
 * Check if an bitcoin URI string is valid
 *
 * @example
 * ```javascript
 *
 * var valid = URI.isValid('dash:XsV4GHVKGTjQFvwB7c6mYsGV3Mxf7iser6');
 * // true
 * ```
 *
 * @param {string|Object} data - A bitcoin URI string or an Object
 * @param {Array.<string>=} knownParams - Required non-standard params
 * @returns {boolean} Result of uri validation
 */
URI.isValid = function(arg, knownParams) {
  try {
    new URI(arg, knownParams);
  } catch (err) {
    return false;
  }
  return true;
};

/**
 * Convert a bitcoin URI string into a simple object.
 *
 * @param {string} uri - A bitcoin URI string
 * @throws {TypeError} Invalid bitcoin URI
 * @returns {Object} An object with the parsed params
 */
URI.parse = function(uri) {
  var info = URL.parse(uri, true);

  if (info.protocol !== 'dash:') {
    throw new TypeError('Invalid dash URI');
  }

  // workaround to host insensitiveness
  var group = /[^:]*:\/?\/?([^?]*)/.exec(uri);
  info.query.address = group && group[1] || undefined;

  return info.query;
};

URI.Members = ['address', 'amount', 'message', 'label', 'r'];

/**
 * Internal function to load the URI instance with an object.
 *
 * @param {Object} obj - Object with the information
 * @throws {TypeError} Invalid bitcoin address
 * @throws {TypeError} Invalid amount
 * @throws {Error} Unknown required argument
 */
URI.prototype._fromObject = function(obj) {
  /* jshint maxcomplexity: 10 */

  if (!Address.isValid(obj.address)) {
    throw new TypeError('Invalid dash address');
  }

  this.address = new Address(obj.address);
  this.network = this.address.network;
  this.amount = obj.amount;

  for (var key in obj) {
    if (key === 'address' || key === 'amount') {
      continue;
    }

    if (/^req-/.exec(key) && this.knownParams.indexOf(key) === -1) {
      throw Error('Unknown required argument ' + key);
    }

    var destination = URI.Members.indexOf(key) > -1 ? this : this.extras;
    destination[key] = obj[key];
  }
};

/**
 * Internal function to transform a BTC string amount into satoshis
 *
 * @param {string} amount - Amount BTC string
 * @throws {TypeError} Invalid amount
 * @returns {Object} Amount represented in satoshis
 */
URI.prototype._parseAmount = function(amount) {
  amount = Number(amount);
  if (isNaN(amount)) {
    throw new TypeError('Invalid amount');
  }
  return Unit.fromBTC(amount).toSatoshis();
};

URI.prototype.toObject = URI.prototype.toJSON = function toObject() {
  var json = {};
  for (var i = 0; i < URI.Members.length; i++) {
    var m = URI.Members[i];
    if (this.hasOwnProperty(m) && typeof(this[m]) !== 'undefined') {
      json[m] = this[m].toString();
    }
  }
  _.extend(json, this.extras);
  return json;
};

/**
 * Will return a the string representation of the URI
 *
 * @returns {string} Bitcoin URI string
 */
URI.prototype.toString = function() {
  var query = {};
  if (this.amount) {
    query.amount = Unit.fromSatoshis(this.amount).toBTC();
  }
  if (this.message) {
    query.message = this.message;
  }
  if (this.label) {
    query.label = this.label;
  }
  if (this.r) {
    query.r = this.r;
  }
  _.extend(query, this.extras);

  return URL.format({
    protocol: 'dash:',
    host: this.address,
    query: query
  });
};

/**
 * Will return a string formatted for the console
 *
 * @returns {string} Bitcoin URI
 */
URI.prototype.inspect = function() {
  return '<URI: ' + this.toString() + '>';
};

module.exports = URI;

},{"./address":1,"./unit":44,"lodash":142,"url":191}],46:[function(require,module,exports){
(function (Buffer){
'use strict';

var buffer = require('buffer');
var assert = require('assert');

var js = require('./js');
var $ = require('./preconditions');

function equals(a, b) {
  if (a.length !== b.length) {
    return false;
  }
  var length = a.length;
  for (var i = 0; i < length; i++) {
    if (a[i] !== b[i]) {
      return false;
    }
  }
  return true;
}

module.exports = {
  /**
   * Fill a buffer with a value.
   *
   * @param {Buffer} buffer
   * @param {number} value
   * @return {Buffer}
   */
  fill: function fill(buffer, value) {
    $.checkArgumentType(buffer, 'Buffer', 'buffer');
    $.checkArgumentType(value, 'number', 'value');
    var length = buffer.length;
    for (var i = 0; i < length; i++) {
      buffer[i] = value;
    }
    return buffer;
  },

  /**
   * Return a copy of a buffer
   *
   * @param {Buffer} original
   * @return {Buffer}
   */
  copy: function(original) {
    var buffer = new Buffer(original.length);
    original.copy(buffer);
    return buffer;
  },

  /**
   * Returns true if the given argument is an instance of a buffer. Tests for
   * both node's Buffer and Uint8Array
   *
   * @param {*} arg
   * @return {boolean}
   */
  isBuffer: function isBuffer(arg) {
    return buffer.Buffer.isBuffer(arg) || arg instanceof Uint8Array;
  },

  /**
   * Returns a zero-filled byte array
   *
   * @param {number} bytes
   * @return {Buffer}
   */
  emptyBuffer: function emptyBuffer(bytes) {
    $.checkArgumentType(bytes, 'number', 'bytes');
    var result = new buffer.Buffer(bytes);
    for (var i = 0; i < bytes; i++) {
      result.write('\0', i);
    }
    return result;
  },

  /**
   * Concatenates a buffer
   *
   * Shortcut for <tt>buffer.Buffer.concat</tt>
   */
  concat: buffer.Buffer.concat,

  equals: equals,
  equal: equals,

  /**
   * Transforms a number from 0 to 255 into a Buffer of size 1 with that value
   *
   * @param {number} integer
   * @return {Buffer}
   */
  integerAsSingleByteBuffer: function integerAsSingleByteBuffer(integer) {
    $.checkArgumentType(integer, 'number', 'integer');
    return new buffer.Buffer([integer & 0xff]);
  },

  /**
   * Transform a 4-byte integer into a Buffer of length 4.
   *
   * @param {number} integer
   * @return {Buffer}
   */
  integerAsBuffer: function integerAsBuffer(integer) {
    $.checkArgumentType(integer, 'number', 'integer');
    var bytes = [];
    bytes.push((integer >> 24) & 0xff);
    bytes.push((integer >> 16) & 0xff);
    bytes.push((integer >> 8) & 0xff);
    bytes.push(integer & 0xff);
    return new Buffer(bytes);
  },

  /**
   * Transform the first 4 values of a Buffer into a number, in little endian encoding
   *
   * @param {Buffer} buffer
   * @return {number}
   */
  integerFromBuffer: function integerFromBuffer(buffer) {
    $.checkArgumentType(buffer, 'Buffer', 'buffer');
    return buffer[0] << 24 | buffer[1] << 16 | buffer[2] << 8 | buffer[3];
  },

  /**
   * Transforms the first byte of an array into a number ranging from -128 to 127
   * @param {Buffer} buffer
   * @return {number}
   */
  integerFromSingleByteBuffer: function integerFromBuffer(buffer) {
    $.checkArgumentType(buffer, 'Buffer', 'buffer');
    return buffer[0];
  },

  /**
   * Transforms a buffer into a string with a number in hexa representation
   *
   * Shorthand for <tt>buffer.toString('hex')</tt>
   *
   * @param {Buffer} buffer
   * @return {string}
   */
  bufferToHex: function bufferToHex(buffer) {
    $.checkArgumentType(buffer, 'Buffer', 'buffer');
    return buffer.toString('hex');
  },

  /**
   * Reverse a buffer
   * @param {Buffer} param
   * @return {Buffer}
   */
  reverse: function reverse(param) {
    var ret = new buffer.Buffer(param.length);
    for (var i = 0; i < param.length; i++) {
      ret[i] = param[param.length - i - 1];
    }
    return ret;
  },

  /**
   * Transforms an hexa encoded string into a Buffer with binary values
   *
   * Shorthand for <tt>Buffer(string, 'hex')</tt>
   *
   * @param {string} string
   * @return {Buffer}
   */
  hexToBuffer: function hexToBuffer(string) {
    assert(js.isHexa(string));
    return new buffer.Buffer(string, 'hex');
  }
};

module.exports.NULL_HASH = module.exports.fill(new Buffer(32), 0);
module.exports.EMPTY_BUFFER = new Buffer(0);

}).call(this,require("buffer").Buffer)
},{"./js":47,"./preconditions":48,"assert":63,"buffer":95}],47:[function(require,module,exports){
'use strict';

var _ = require('lodash');

/**
 * Determines whether a string contains only hexadecimal values
 *
 * @name JSUtil.isHexa
 * @param {string} value
 * @return {boolean} true if the string is the hexa representation of a number
 */
var isHexa = function isHexa(value) {
  if (!_.isString(value)) {
    return false;
  }
  return /^[0-9a-fA-F]+$/.test(value);
};

/**
 * @namespace JSUtil
 */
module.exports = {
  /**
   * Test if an argument is a valid JSON object. If it is, returns a truthy
   * value (the json object decoded), so no double JSON.parse call is necessary
   *
   * @param {string} arg
   * @return {Object|boolean} false if the argument is not a JSON string.
   */
  isValidJSON: function isValidJSON(arg) {
    var parsed;
    if (!_.isString(arg)) {
      return false;
    }
    try {
      parsed = JSON.parse(arg);
    } catch (e) {
      return false;
    }
    if (typeof(parsed) === 'object') {
      return true;
    }
    return false;
  },
  isHexa: isHexa,
  isHexaString: isHexa,

  /**
   * Clone an array
   */
  cloneArray: function(array) {
    return [].concat(array);
  },

  /**
   * Define immutable properties on a target object
   *
   * @param {Object} target - An object to be extended
   * @param {Object} values - An object of properties
   * @return {Object} The target object
   */
  defineImmutable: function defineImmutable(target, values) {
    Object.keys(values).forEach(function(key){
      Object.defineProperty(target, key, {
        configurable: false,
        enumerable: true,
        value: values[key]
      });
    });
    return target;
  },
  /**
   * Checks that a value is a natural number, a positive integer or zero.
   *
   * @param {*} value
   * @return {Boolean}
   */
  isNaturalNumber: function isNaturalNumber(value) {
    return typeof value === 'number' &&
      isFinite(value) &&
      Math.floor(value) === value &&
      value >= 0;
  }
};

},{"lodash":142}],48:[function(require,module,exports){
'use strict';

var errors = require('../errors');
var _ = require('lodash');

module.exports = {
  checkState: function(condition, message) {
    if (!condition) {
      throw new errors.InvalidState(message);
    }
  },
  checkArgument: function(condition, argumentName, message, docsPath) {
    if (!condition) {
      throw new errors.InvalidArgument(argumentName, message, docsPath);
    }
  },
  checkArgumentType: function(argument, type, argumentName) {
    argumentName = argumentName || '(unknown name)';
    if (_.isString(type)) {
      if (type === 'Buffer') {
        var BufferUtil = require('./buffer');
        if (!BufferUtil.isBuffer(argument)) {
          throw new errors.InvalidArgumentType(argument, type, argumentName);
        }
      } else if (typeof argument !== type) {
        throw new errors.InvalidArgumentType(argument, type, argumentName);
      }
    } else {
      if (!(argument instanceof type)) {
        throw new errors.InvalidArgumentType(argument, type.name, argumentName);
      }
    }
  }
};

},{"../errors":17,"./buffer":46,"lodash":142}],49:[function(require,module,exports){
var asn1 = exports;

asn1.bignum = require('bn.js');

asn1.define = require('./asn1/api').define;
asn1.base = require('./asn1/base');
asn1.constants = require('./asn1/constants');
asn1.decoders = require('./asn1/decoders');
asn1.encoders = require('./asn1/encoders');

},{"./asn1/api":50,"./asn1/base":52,"./asn1/constants":56,"./asn1/decoders":58,"./asn1/encoders":61,"bn.js":65}],50:[function(require,module,exports){
var asn1 = require('../asn1');
var inherits = require('inherits');

var api = exports;

api.define = function define(name, body) {
  return new Entity(name, body);
};

function Entity(name, body) {
  this.name = name;
  this.body = body;

  this.decoders = {};
  this.encoders = {};
};

Entity.prototype._createNamed = function createNamed(base) {
  var named;
  try {
    named = require('vm').runInThisContext(
      '(function ' + this.name + '(entity) {\n' +
      '  this._initNamed(entity);\n' +
      '})'
    );
  } catch (e) {
    named = function (entity) {
      this._initNamed(entity);
    };
  }
  inherits(named, base);
  named.prototype._initNamed = function initnamed(entity) {
    base.call(this, entity);
  };

  return new named(this);
};

Entity.prototype._getDecoder = function _getDecoder(enc) {
  enc = enc || 'der';
  // Lazily create decoder
  if (!this.decoders.hasOwnProperty(enc))
    this.decoders[enc] = this._createNamed(asn1.decoders[enc]);
  return this.decoders[enc];
};

Entity.prototype.decode = function decode(data, enc, options) {
  return this._getDecoder(enc).decode(data, options);
};

Entity.prototype._getEncoder = function _getEncoder(enc) {
  enc = enc || 'der';
  // Lazily create encoder
  if (!this.encoders.hasOwnProperty(enc))
    this.encoders[enc] = this._createNamed(asn1.encoders[enc]);
  return this.encoders[enc];
};

Entity.prototype.encode = function encode(data, enc, /* internal */ reporter) {
  return this._getEncoder(enc).encode(data, reporter);
};

},{"../asn1":49,"inherits":139,"vm":195}],51:[function(require,module,exports){
var inherits = require('inherits');
var Reporter = require('../base').Reporter;
var Buffer = require('buffer').Buffer;

function DecoderBuffer(base, options) {
  Reporter.call(this, options);
  if (!Buffer.isBuffer(base)) {
    this.error('Input not Buffer');
    return;
  }

  this.base = base;
  this.offset = 0;
  this.length = base.length;
}
inherits(DecoderBuffer, Reporter);
exports.DecoderBuffer = DecoderBuffer;

DecoderBuffer.prototype.save = function save() {
  return { offset: this.offset, reporter: Reporter.prototype.save.call(this) };
};

DecoderBuffer.prototype.restore = function restore(save) {
  // Return skipped data
  var res = new DecoderBuffer(this.base);
  res.offset = save.offset;
  res.length = this.offset;

  this.offset = save.offset;
  Reporter.prototype.restore.call(this, save.reporter);

  return res;
};

DecoderBuffer.prototype.isEmpty = function isEmpty() {
  return this.offset === this.length;
};

DecoderBuffer.prototype.readUInt8 = function readUInt8(fail) {
  if (this.offset + 1 <= this.length)
    return this.base.readUInt8(this.offset++, true);
  else
    return this.error(fail || 'DecoderBuffer overrun');
}

DecoderBuffer.prototype.skip = function skip(bytes, fail) {
  if (!(this.offset + bytes <= this.length))
    return this.error(fail || 'DecoderBuffer overrun');

  var res = new DecoderBuffer(this.base);

  // Share reporter state
  res._reporterState = this._reporterState;

  res.offset = this.offset;
  res.length = this.offset + bytes;
  this.offset += bytes;
  return res;
}

DecoderBuffer.prototype.raw = function raw(save) {
  return this.base.slice(save ? save.offset : this.offset, this.length);
}

function EncoderBuffer(value, reporter) {
  if (Array.isArray(value)) {
    this.length = 0;
    this.value = value.map(function(item) {
      if (!(item instanceof EncoderBuffer))
        item = new EncoderBuffer(item, reporter);
      this.length += item.length;
      return item;
    }, this);
  } else if (typeof value === 'number') {
    if (!(0 <= value && value <= 0xff))
      return reporter.error('non-byte EncoderBuffer value');
    this.value = value;
    this.length = 1;
  } else if (typeof value === 'string') {
    this.value = value;
    this.length = Buffer.byteLength(value);
  } else if (Buffer.isBuffer(value)) {
    this.value = value;
    this.length = value.length;
  } else {
    return reporter.error('Unsupported type: ' + typeof value);
  }
}
exports.EncoderBuffer = EncoderBuffer;

EncoderBuffer.prototype.join = function join(out, offset) {
  if (!out)
    out = new Buffer(this.length);
  if (!offset)
    offset = 0;

  if (this.length === 0)
    return out;

  if (Array.isArray(this.value)) {
    this.value.forEach(function(item) {
      item.join(out, offset);
      offset += item.length;
    });
  } else {
    if (typeof this.value === 'number')
      out[offset] = this.value;
    else if (typeof this.value === 'string')
      out.write(this.value, offset);
    else if (Buffer.isBuffer(this.value))
      this.value.copy(out, offset);
    offset += this.length;
  }

  return out;
};

},{"../base":52,"buffer":95,"inherits":139}],52:[function(require,module,exports){
var base = exports;

base.Reporter = require('./reporter').Reporter;
base.DecoderBuffer = require('./buffer').DecoderBuffer;
base.EncoderBuffer = require('./buffer').EncoderBuffer;
base.Node = require('./node');

},{"./buffer":51,"./node":53,"./reporter":54}],53:[function(require,module,exports){
var Reporter = require('../base').Reporter;
var EncoderBuffer = require('../base').EncoderBuffer;
var DecoderBuffer = require('../base').DecoderBuffer;
var assert = require('minimalistic-assert');

// Supported tags
var tags = [
  'seq', 'seqof', 'set', 'setof', 'objid', 'bool',
  'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc',
  'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str',
  'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr'
];

// Public methods list
var methods = [
  'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice',
  'any', 'contains'
].concat(tags);

// Overrided methods list
var overrided = [
  '_peekTag', '_decodeTag', '_use',
  '_decodeStr', '_decodeObjid', '_decodeTime',
  '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList',

  '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime',
  '_encodeNull', '_encodeInt', '_encodeBool'
];

function Node(enc, parent) {
  var state = {};
  this._baseState = state;

  state.enc = enc;

  state.parent = parent || null;
  state.children = null;

  // State
  state.tag = null;
  state.args = null;
  state.reverseArgs = null;
  state.choice = null;
  state.optional = false;
  state.any = false;
  state.obj = false;
  state.use = null;
  state.useDecoder = null;
  state.key = null;
  state['default'] = null;
  state.explicit = null;
  state.implicit = null;
  state.contains = null;

  // Should create new instance on each method
  if (!state.parent) {
    state.children = [];
    this._wrap();
  }
}
module.exports = Node;

var stateProps = [
  'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice',
  'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit',
  'implicit', 'contains'
];

Node.prototype.clone = function clone() {
  var state = this._baseState;
  var cstate = {};
  stateProps.forEach(function(prop) {
    cstate[prop] = state[prop];
  });
  var res = new this.constructor(cstate.parent);
  res._baseState = cstate;
  return res;
};

Node.prototype._wrap = function wrap() {
  var state = this._baseState;
  methods.forEach(function(method) {
    this[method] = function _wrappedMethod() {
      var clone = new this.constructor(this);
      state.children.push(clone);
      return clone[method].apply(clone, arguments);
    };
  }, this);
};

Node.prototype._init = function init(body) {
  var state = this._baseState;

  assert(state.parent === null);
  body.call(this);

  // Filter children
  state.children = state.children.filter(function(child) {
    return child._baseState.parent === this;
  }, this);
  assert.equal(state.children.length, 1, 'Root node can have only one child');
};

Node.prototype._useArgs = function useArgs(args) {
  var state = this._baseState;

  // Filter children and args
  var children = args.filter(function(arg) {
    return arg instanceof this.constructor;
  }, this);
  args = args.filter(function(arg) {
    return !(arg instanceof this.constructor);
  }, this);

  if (children.length !== 0) {
    assert(state.children === null);
    state.children = children;

    // Replace parent to maintain backward link
    children.forEach(function(child) {
      child._baseState.parent = this;
    }, this);
  }
  if (args.length !== 0) {
    assert(state.args === null);
    state.args = args;
    state.reverseArgs = args.map(function(arg) {
      if (typeof arg !== 'object' || arg.constructor !== Object)
        return arg;

      var res = {};
      Object.keys(arg).forEach(function(key) {
        if (key == (key | 0))
          key |= 0;
        var value = arg[key];
        res[value] = key;
      });
      return res;
    });
  }
};

//
// Overrided methods
//

overrided.forEach(function(method) {
  Node.prototype[method] = function _overrided() {
    var state = this._baseState;
    throw new Error(method + ' not implemented for encoding: ' + state.enc);
  };
});

//
// Public methods
//

tags.forEach(function(tag) {
  Node.prototype[tag] = function _tagMethod() {
    var state = this._baseState;
    var args = Array.prototype.slice.call(arguments);

    assert(state.tag === null);
    state.tag = tag;

    this._useArgs(args);

    return this;
  };
});

Node.prototype.use = function use(item) {
  assert(item);
  var state = this._baseState;

  assert(state.use === null);
  state.use = item;

  return this;
};

Node.prototype.optional = function optional() {
  var state = this._baseState;

  state.optional = true;

  return this;
};

Node.prototype.def = function def(val) {
  var state = this._baseState;

  assert(state['default'] === null);
  state['default'] = val;
  state.optional = true;

  return this;
};

Node.prototype.explicit = function explicit(num) {
  var state = this._baseState;

  assert(state.explicit === null && state.implicit === null);
  state.explicit = num;

  return this;
};

Node.prototype.implicit = function implicit(num) {
  var state = this._baseState;

  assert(state.explicit === null && state.implicit === null);
  state.implicit = num;

  return this;
};

Node.prototype.obj = function obj() {
  var state = this._baseState;
  var args = Array.prototype.slice.call(arguments);

  state.obj = true;

  if (args.length !== 0)
    this._useArgs(args);

  return this;
};

Node.prototype.key = function key(newKey) {
  var state = this._baseState;

  assert(state.key === null);
  state.key = newKey;

  return this;
};

Node.prototype.any = function any() {
  var state = this._baseState;

  state.any = true;

  return this;
};

Node.prototype.choice = function choice(obj) {
  var state = this._baseState;

  assert(state.choice === null);
  state.choice = obj;
  this._useArgs(Object.keys(obj).map(function(key) {
    return obj[key];
  }));

  return this;
};

Node.prototype.contains = function contains(item) {
  var state = this._baseState;

  assert(state.use === null);
  state.contains = item;

  return this;
};

//
// Decoding
//

Node.prototype._decode = function decode(input, options) {
  var state = this._baseState;

  // Decode root node
  if (state.parent === null)
    return input.wrapResult(state.children[0]._decode(input, options));

  var result = state['default'];
  var present = true;

  var prevKey = null;
  if (state.key !== null)
    prevKey = input.enterKey(state.key);

  // Check if tag is there
  if (state.optional) {
    var tag = null;
    if (state.explicit !== null)
      tag = state.explicit;
    else if (state.implicit !== null)
      tag = state.implicit;
    else if (state.tag !== null)
      tag = state.tag;

    if (tag === null && !state.any) {
      // Trial and Error
      var save = input.save();
      try {
        if (state.choice === null)
          this._decodeGeneric(state.tag, input, options);
        else
          this._decodeChoice(input, options);
        present = true;
      } catch (e) {
        present = false;
      }
      input.restore(save);
    } else {
      present = this._peekTag(input, tag, state.any);

      if (input.isError(present))
        return present;
    }
  }

  // Push object on stack
  var prevObj;
  if (state.obj && present)
    prevObj = input.enterObject();

  if (present) {
    // Unwrap explicit values
    if (state.explicit !== null) {
      var explicit = this._decodeTag(input, state.explicit);
      if (input.isError(explicit))
        return explicit;
      input = explicit;
    }

    var start = input.offset;

    // Unwrap implicit and normal values
    if (state.use === null && state.choice === null) {
      if (state.any)
        var save = input.save();
      var body = this._decodeTag(
        input,
        state.implicit !== null ? state.implicit : state.tag,
        state.any
      );
      if (input.isError(body))
        return body;

      if (state.any)
        result = input.raw(save);
      else
        input = body;
    }

    if (options && options.track && state.tag !== null)
      options.track(input.path(), start, input.length, 'tagged');

    if (options && options.track && state.tag !== null)
      options.track(input.path(), input.offset, input.length, 'content');

    // Select proper method for tag
    if (state.any)
      result = result;
    else if (state.choice === null)
      result = this._decodeGeneric(state.tag, input, options);
    else
      result = this._decodeChoice(input, options);

    if (input.isError(result))
      return result;

    // Decode children
    if (!state.any && state.choice === null && state.children !== null) {
      state.children.forEach(function decodeChildren(child) {
        // NOTE: We are ignoring errors here, to let parser continue with other
        // parts of encoded data
        child._decode(input, options);
      });
    }

    // Decode contained/encoded by schema, only in bit or octet strings
    if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) {
      var data = new DecoderBuffer(result);
      result = this._getUse(state.contains, input._reporterState.obj)
          ._decode(data, options);
    }
  }

  // Pop object
  if (state.obj && present)
    result = input.leaveObject(prevObj);

  // Set key
  if (state.key !== null && (result !== null || present === true))
    input.leaveKey(prevKey, state.key, result);
  else if (prevKey !== null)
    input.exitKey(prevKey);

  return result;
};

Node.prototype._decodeGeneric = function decodeGeneric(tag, input, options) {
  var state = this._baseState;

  if (tag === 'seq' || tag === 'set')
    return null;
  if (tag === 'seqof' || tag === 'setof')
    return this._decodeList(input, tag, state.args[0], options);
  else if (/str$/.test(tag))
    return this._decodeStr(input, tag, options);
  else if (tag === 'objid' && state.args)
    return this._decodeObjid(input, state.args[0], state.args[1], options);
  else if (tag === 'objid')
    return this._decodeObjid(input, null, null, options);
  else if (tag === 'gentime' || tag === 'utctime')
    return this._decodeTime(input, tag, options);
  else if (tag === 'null_')
    return this._decodeNull(input, options);
  else if (tag === 'bool')
    return this._decodeBool(input, options);
  else if (tag === 'objDesc')
    return this._decodeStr(input, tag, options);
  else if (tag === 'int' || tag === 'enum')
    return this._decodeInt(input, state.args && state.args[0], options);

  if (state.use !== null) {
    return this._getUse(state.use, input._reporterState.obj)
        ._decode(input, options);
  } else {
    return input.error('unknown tag: ' + tag);
  }
};

Node.prototype._getUse = function _getUse(entity, obj) {

  var state = this._baseState;
  // Create altered use decoder if implicit is set
  state.useDecoder = this._use(entity, obj);
  assert(state.useDecoder._baseState.parent === null);
  state.useDecoder = state.useDecoder._baseState.children[0];
  if (state.implicit !== state.useDecoder._baseState.implicit) {
    state.useDecoder = state.useDecoder.clone();
    state.useDecoder._baseState.implicit = state.implicit;
  }
  return state.useDecoder;
};

Node.prototype._decodeChoice = function decodeChoice(input, options) {
  var state = this._baseState;
  var result = null;
  var match = false;

  Object.keys(state.choice).some(function(key) {
    var save = input.save();
    var node = state.choice[key];
    try {
      var value = node._decode(input, options);
      if (input.isError(value))
        return false;

      result = { type: key, value: value };
      match = true;
    } catch (e) {
      input.restore(save);
      return false;
    }
    return true;
  }, this);

  if (!match)
    return input.error('Choice not matched');

  return result;
};

//
// Encoding
//

Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) {
  return new EncoderBuffer(data, this.reporter);
};

Node.prototype._encode = function encode(data, reporter, parent) {
  var state = this._baseState;
  if (state['default'] !== null && state['default'] === data)
    return;

  var result = this._encodeValue(data, reporter, parent);
  if (result === undefined)
    return;

  if (this._skipDefault(result, reporter, parent))
    return;

  return result;
};

Node.prototype._encodeValue = function encode(data, reporter, parent) {
  var state = this._baseState;

  // Decode root node
  if (state.parent === null)
    return state.children[0]._encode(data, reporter || new Reporter());

  var result = null;

  // Set reporter to share it with a child class
  this.reporter = reporter;

  // Check if data is there
  if (state.optional && data === undefined) {
    if (state['default'] !== null)
      data = state['default']
    else
      return;
  }

  // Encode children first
  var content = null;
  var primitive = false;
  if (state.any) {
    // Anything that was given is translated to buffer
    result = this._createEncoderBuffer(data);
  } else if (state.choice) {
    result = this._encodeChoice(data, reporter);
  } else if (state.contains) {
    content = this._getUse(state.contains, parent)._encode(data, reporter);
    primitive = true;
  } else if (state.children) {
    content = state.children.map(function(child) {
      if (child._baseState.tag === 'null_')
        return child._encode(null, reporter, data);

      if (child._baseState.key === null)
        return reporter.error('Child should have a key');
      var prevKey = reporter.enterKey(child._baseState.key);

      if (typeof data !== 'object')
        return reporter.error('Child expected, but input is not object');

      var res = child._encode(data[child._baseState.key], reporter, data);
      reporter.leaveKey(prevKey);

      return res;
    }, this).filter(function(child) {
      return child;
    });
    content = this._createEncoderBuffer(content);
  } else {
    if (state.tag === 'seqof' || state.tag === 'setof') {
      // TODO(indutny): this should be thrown on DSL level
      if (!(state.args && state.args.length === 1))
        return reporter.error('Too many args for : ' + state.tag);

      if (!Array.isArray(data))
        return reporter.error('seqof/setof, but data is not Array');

      var child = this.clone();
      child._baseState.implicit = null;
      content = this._createEncoderBuffer(data.map(function(item) {
        var state = this._baseState;

        return this._getUse(state.args[0], data)._encode(item, reporter);
      }, child));
    } else if (state.use !== null) {
      result = this._getUse(state.use, parent)._encode(data, reporter);
    } else {
      content = this._encodePrimitive(state.tag, data);
      primitive = true;
    }
  }

  // Encode data itself
  var result;
  if (!state.any && state.choice === null) {
    var tag = state.implicit !== null ? state.implicit : state.tag;
    var cls = state.implicit === null ? 'universal' : 'context';

    if (tag === null) {
      if (state.use === null)
        reporter.error('Tag could be ommited only for .use()');
    } else {
      if (state.use === null)
        result = this._encodeComposite(tag, primitive, cls, content);
    }
  }

  // Wrap in explicit
  if (state.explicit !== null)
    result = this._encodeComposite(state.explicit, false, 'context', result);

  return result;
};

Node.prototype._encodeChoice = function encodeChoice(data, reporter) {
  var state = this._baseState;

  var node = state.choice[data.type];
  if (!node) {
    assert(
        false,
        data.type + ' not found in ' +
            JSON.stringify(Object.keys(state.choice)));
  }
  return node._encode(data.value, reporter);
};

Node.prototype._encodePrimitive = function encodePrimitive(tag, data) {
  var state = this._baseState;

  if (/str$/.test(tag))
    return this._encodeStr(data, tag);
  else if (tag === 'objid' && state.args)
    return this._encodeObjid(data, state.reverseArgs[0], state.args[1]);
  else if (tag === 'objid')
    return this._encodeObjid(data, null, null);
  else if (tag === 'gentime' || tag === 'utctime')
    return this._encodeTime(data, tag);
  else if (tag === 'null_')
    return this._encodeNull();
  else if (tag === 'int' || tag === 'enum')
    return this._encodeInt(data, state.args && state.reverseArgs[0]);
  else if (tag === 'bool')
    return this._encodeBool(data);
  else if (tag === 'objDesc')
    return this._encodeStr(data, tag);
  else
    throw new Error('Unsupported tag: ' + tag);
};

Node.prototype._isNumstr = function isNumstr(str) {
  return /^[0-9 ]*$/.test(str);
};

Node.prototype._isPrintstr = function isPrintstr(str) {
  return /^[A-Za-z0-9 '\(\)\+,\-\.\/:=\?]*$/.test(str);
};

},{"../base":52,"minimalistic-assert":144}],54:[function(require,module,exports){
var inherits = require('inherits');

function Reporter(options) {
  this._reporterState = {
    obj: null,
    path: [],
    options: options || {},
    errors: []
  };
}
exports.Reporter = Reporter;

Reporter.prototype.isError = function isError(obj) {
  return obj instanceof ReporterError;
};

Reporter.prototype.save = function save() {
  var state = this._reporterState;

  return { obj: state.obj, pathLen: state.path.length };
};

Reporter.prototype.restore = function restore(data) {
  var state = this._reporterState;

  state.obj = data.obj;
  state.path = state.path.slice(0, data.pathLen);
};

Reporter.prototype.enterKey = function enterKey(key) {
  return this._reporterState.path.push(key);
};

Reporter.prototype.exitKey = function exitKey(index) {
  var state = this._reporterState;

  state.path = state.path.slice(0, index - 1);
};

Reporter.prototype.leaveKey = function leaveKey(index, key, value) {
  var state = this._reporterState;

  this.exitKey(index);
  if (state.obj !== null)
    state.obj[key] = value;
};

Reporter.prototype.path = function path() {
  return this._reporterState.path.join('/');
};

Reporter.prototype.enterObject = function enterObject() {
  var state = this._reporterState;

  var prev = state.obj;
  state.obj = {};
  return prev;
};

Reporter.prototype.leaveObject = function leaveObject(prev) {
  var state = this._reporterState;

  var now = state.obj;
  state.obj = prev;
  return now;
};

Reporter.prototype.error = function error(msg) {
  var err;
  var state = this._reporterState;

  var inherited = msg instanceof ReporterError;
  if (inherited) {
    err = msg;
  } else {
    err = new ReporterError(state.path.map(function(elem) {
      return '[' + JSON.stringify(elem) + ']';
    }).join(''), msg.message || msg, msg.stack);
  }

  if (!state.options.partial)
    throw err;

  if (!inherited)
    state.errors.push(err);

  return err;
};

Reporter.prototype.wrapResult = function wrapResult(result) {
  var state = this._reporterState;
  if (!state.options.partial)
    return result;

  return {
    result: this.isError(result) ? null : result,
    errors: state.errors
  };
};

function ReporterError(path, msg) {
  this.path = path;
  this.rethrow(msg);
};
inherits(ReporterError, Error);

ReporterError.prototype.rethrow = function rethrow(msg) {
  this.message = msg + ' at: ' + (this.path || '(shallow)');
  if (Error.captureStackTrace)
    Error.captureStackTrace(this, ReporterError);

  if (!this.stack) {
    try {
      // IE only adds stack when thrown
      throw new Error(this.message);
    } catch (e) {
      this.stack = e.stack;
    }
  }
  return this;
};

},{"inherits":139}],55:[function(require,module,exports){
var constants = require('../constants');

exports.tagClass = {
  0: 'universal',
  1: 'application',
  2: 'context',
  3: 'private'
};
exports.tagClassByName = constants._reverse(exports.tagClass);

exports.tag = {
  0x00: 'end',
  0x01: 'bool',
  0x02: 'int',
  0x03: 'bitstr',
  0x04: 'octstr',
  0x05: 'null_',
  0x06: 'objid',
  0x07: 'objDesc',
  0x08: 'external',
  0x09: 'real',
  0x0a: 'enum',
  0x0b: 'embed',
  0x0c: 'utf8str',
  0x0d: 'relativeOid',
  0x10: 'seq',
  0x11: 'set',
  0x12: 'numstr',
  0x13: 'printstr',
  0x14: 't61str',
  0x15: 'videostr',
  0x16: 'ia5str',
  0x17: 'utctime',
  0x18: 'gentime',
  0x19: 'graphstr',
  0x1a: 'iso646str',
  0x1b: 'genstr',
  0x1c: 'unistr',
  0x1d: 'charstr',
  0x1e: 'bmpstr'
};
exports.tagByName = constants._reverse(exports.tag);

},{"../constants":56}],56:[function(require,module,exports){
var constants = exports;

// Helper
constants._reverse = function reverse(map) {
  var res = {};

  Object.keys(map).forEach(function(key) {
    // Convert key to integer if it is stringified
    if ((key | 0) == key)
      key = key | 0;

    var value = map[key];
    res[value] = key;
  });

  return res;
};

constants.der = require('./der');

},{"./der":55}],57:[function(require,module,exports){
var inherits = require('inherits');

var asn1 = require('../../asn1');
var base = asn1.base;
var bignum = asn1.bignum;

// Import DER constants
var der = asn1.constants.der;

function DERDecoder(entity) {
  this.enc = 'der';
  this.name = entity.name;
  this.entity = entity;

  // Construct base tree
  this.tree = new DERNode();
  this.tree._init(entity.body);
};
module.exports = DERDecoder;

DERDecoder.prototype.decode = function decode(data, options) {
  if (!(data instanceof base.DecoderBuffer))
    data = new base.DecoderBuffer(data, options);

  return this.tree._decode(data, options);
};

// Tree methods

function DERNode(parent) {
  base.Node.call(this, 'der', parent);
}
inherits(DERNode, base.Node);

DERNode.prototype._peekTag = function peekTag(buffer, tag, any) {
  if (buffer.isEmpty())
    return false;

  var state = buffer.save();
  var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"');
  if (buffer.isError(decodedTag))
    return decodedTag;

  buffer.restore(state);

  return decodedTag.tag === tag || decodedTag.tagStr === tag ||
    (decodedTag.tagStr + 'of') === tag || any;
};

DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) {
  var decodedTag = derDecodeTag(buffer,
                                'Failed to decode tag of "' + tag + '"');
  if (buffer.isError(decodedTag))
    return decodedTag;

  var len = derDecodeLen(buffer,
                         decodedTag.primitive,
                         'Failed to get length of "' + tag + '"');

  // Failure
  if (buffer.isError(len))
    return len;

  if (!any &&
      decodedTag.tag !== tag &&
      decodedTag.tagStr !== tag &&
      decodedTag.tagStr + 'of' !== tag) {
    return buffer.error('Failed to match tag: "' + tag + '"');
  }

  if (decodedTag.primitive || len !== null)
    return buffer.skip(len, 'Failed to match body of: "' + tag + '"');

  // Indefinite length... find END tag
  var state = buffer.save();
  var res = this._skipUntilEnd(
      buffer,
      'Failed to skip indefinite length body: "' + this.tag + '"');
  if (buffer.isError(res))
    return res;

  len = buffer.offset - state.offset;
  buffer.restore(state);
  return buffer.skip(len, 'Failed to match body of: "' + tag + '"');
};

DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) {
  while (true) {
    var tag = derDecodeTag(buffer, fail);
    if (buffer.isError(tag))
      return tag;
    var len = derDecodeLen(buffer, tag.primitive, fail);
    if (buffer.isError(len))
      return len;

    var res;
    if (tag.primitive || len !== null)
      res = buffer.skip(len)
    else
      res = this._skipUntilEnd(buffer, fail);

    // Failure
    if (buffer.isError(res))
      return res;

    if (tag.tagStr === 'end')
      break;
  }
};

DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder,
                                                    options) {
  var result = [];
  while (!buffer.isEmpty()) {
    var possibleEnd = this._peekTag(buffer, 'end');
    if (buffer.isError(possibleEnd))
      return possibleEnd;

    var res = decoder.decode(buffer, 'der', options);
    if (buffer.isError(res) && possibleEnd)
      break;
    result.push(res);
  }
  return result;
};

DERNode.prototype._decodeStr = function decodeStr(buffer, tag) {
  if (tag === 'bitstr') {
    var unused = buffer.readUInt8();
    if (buffer.isError(unused))
      return unused;
    return { unused: unused, data: buffer.raw() };
  } else if (tag === 'bmpstr') {
    var raw = buffer.raw();
    if (raw.length % 2 === 1)
      return buffer.error('Decoding of string type: bmpstr length mismatch');

    var str = '';
    for (var i = 0; i < raw.length / 2; i++) {
      str += String.fromCharCode(raw.readUInt16BE(i * 2));
    }
    return str;
  } else if (tag === 'numstr') {
    var numstr = buffer.raw().toString('ascii');
    if (!this._isNumstr(numstr)) {
      return buffer.error('Decoding of string type: ' +
                          'numstr unsupported characters');
    }
    return numstr;
  } else if (tag === 'octstr') {
    return buffer.raw();
  } else if (tag === 'objDesc') {
    return buffer.raw();
  } else if (tag === 'printstr') {
    var printstr = buffer.raw().toString('ascii');
    if (!this._isPrintstr(printstr)) {
      return buffer.error('Decoding of string type: ' +
                          'printstr unsupported characters');
    }
    return printstr;
  } else if (/str$/.test(tag)) {
    return buffer.raw().toString();
  } else {
    return buffer.error('Decoding of string type: ' + tag + ' unsupported');
  }
};

DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) {
  var result;
  var identifiers = [];
  var ident = 0;
  while (!buffer.isEmpty()) {
    var subident = buffer.readUInt8();
    ident <<= 7;
    ident |= subident & 0x7f;
    if ((subident & 0x80) === 0) {
      identifiers.push(ident);
      ident = 0;
    }
  }
  if (subident & 0x80)
    identifiers.push(ident);

  var first = (identifiers[0] / 40) | 0;
  var second = identifiers[0] % 40;

  if (relative)
    result = identifiers;
  else
    result = [first, second].concat(identifiers.slice(1));

  if (values) {
    var tmp = values[result.join(' ')];
    if (tmp === undefined)
      tmp = values[result.join('.')];
    if (tmp !== undefined)
      result = tmp;
  }

  return result;
};

DERNode.prototype._decodeTime = function decodeTime(buffer, tag) {
  var str = buffer.raw().toString();
  if (tag === 'gentime') {
    var year = str.slice(0, 4) | 0;
    var mon = str.slice(4, 6) | 0;
    var day = str.slice(6, 8) | 0;
    var hour = str.slice(8, 10) | 0;
    var min = str.slice(10, 12) | 0;
    var sec = str.slice(12, 14) | 0;
  } else if (tag === 'utctime') {
    var year = str.slice(0, 2) | 0;
    var mon = str.slice(2, 4) | 0;
    var day = str.slice(4, 6) | 0;
    var hour = str.slice(6, 8) | 0;
    var min = str.slice(8, 10) | 0;
    var sec = str.slice(10, 12) | 0;
    if (year < 70)
      year = 2000 + year;
    else
      year = 1900 + year;
  } else {
    return buffer.error('Decoding ' + tag + ' time is not supported yet');
  }

  return Date.UTC(year, mon - 1, day, hour, min, sec, 0);
};

DERNode.prototype._decodeNull = function decodeNull(buffer) {
  return null;
};

DERNode.prototype._decodeBool = function decodeBool(buffer) {
  var res = buffer.readUInt8();
  if (buffer.isError(res))
    return res;
  else
    return res !== 0;
};

DERNode.prototype._decodeInt = function decodeInt(buffer, values) {
  // Bigint, return as it is (assume big endian)
  var raw = buffer.raw();
  var res = new bignum(raw);

  if (values)
    res = values[res.toString(10)] || res;

  return res;
};

DERNode.prototype._use = function use(entity, obj) {
  if (typeof entity === 'function')
    entity = entity(obj);
  return entity._getDecoder('der').tree;
};

// Utility methods

function derDecodeTag(buf, fail) {
  var tag = buf.readUInt8(fail);
  if (buf.isError(tag))
    return tag;

  var cls = der.tagClass[tag >> 6];
  var primitive = (tag & 0x20) === 0;

  // Multi-octet tag - load
  if ((tag & 0x1f) === 0x1f) {
    var oct = tag;
    tag = 0;
    while ((oct & 0x80) === 0x80) {
      oct = buf.readUInt8(fail);
      if (buf.isError(oct))
        return oct;

      tag <<= 7;
      tag |= oct & 0x7f;
    }
  } else {
    tag &= 0x1f;
  }
  var tagStr = der.tag[tag];

  return {
    cls: cls,
    primitive: primitive,
    tag: tag,
    tagStr: tagStr
  };
}

function derDecodeLen(buf, primitive, fail) {
  var len = buf.readUInt8(fail);
  if (buf.isError(len))
    return len;

  // Indefinite form
  if (!primitive && len === 0x80)
    return null;

  // Definite form
  if ((len & 0x80) === 0) {
    // Short form
    return len;
  }

  // Long form
  var num = len & 0x7f;
  if (num >= 4)
    return buf.error('length octect is too long');

  len = 0;
  for (var i = 0; i < num; i++) {
    len <<= 8;
    var j = buf.readUInt8(fail);
    if (buf.isError(j))
      return j;
    len |= j;
  }

  return len;
}

},{"../../asn1":49,"inherits":139}],58:[function(require,module,exports){
var decoders = exports;

decoders.der = require('./der');
decoders.pem = require('./pem');

},{"./der":57,"./pem":59}],59:[function(require,module,exports){
var inherits = require('inherits');
var Buffer = require('buffer').Buffer;

var DERDecoder = require('./der');

function PEMDecoder(entity) {
  DERDecoder.call(this, entity);
  this.enc = 'pem';
};
inherits(PEMDecoder, DERDecoder);
module.exports = PEMDecoder;

PEMDecoder.prototype.decode = function decode(data, options) {
  var lines = data.toString().split(/[\r\n]+/g);

  var label = options.label.toUpperCase();

  var re = /^-----(BEGIN|END) ([^-]+)-----$/;
  var start = -1;
  var end = -1;
  for (var i = 0; i < lines.length; i++) {
    var match = lines[i].match(re);
    if (match === null)
      continue;

    if (match[2] !== label)
      continue;

    if (start === -1) {
      if (match[1] !== 'BEGIN')
        break;
      start = i;
    } else {
      if (match[1] !== 'END')
        break;
      end = i;
      break;
    }
  }
  if (start === -1 || end === -1)
    throw new Error('PEM section not found for: ' + label);

  var base64 = lines.slice(start + 1, end).join('');
  // Remove excessive symbols
  base64.replace(/[^a-z0-9\+\/=]+/gi, '');

  var input = new Buffer(base64, 'base64');
  return DERDecoder.prototype.decode.call(this, input, options);
};

},{"./der":57,"buffer":95,"inherits":139}],60:[function(require,module,exports){
var inherits = require('inherits');
var Buffer = require('buffer').Buffer;

var asn1 = require('../../asn1');
var base = asn1.base;

// Import DER constants
var der = asn1.constants.der;

function DEREncoder(entity) {
  this.enc = 'der';
  this.name = entity.name;
  this.entity = entity;

  // Construct base tree
  this.tree = new DERNode();
  this.tree._init(entity.body);
};
module.exports = DEREncoder;

DEREncoder.prototype.encode = function encode(data, reporter) {
  return this.tree._encode(data, reporter).join();
};

// Tree methods

function DERNode(parent) {
  base.Node.call(this, 'der', parent);
}
inherits(DERNode, base.Node);

DERNode.prototype._encodeComposite = function encodeComposite(tag,
                                                              primitive,
                                                              cls,
                                                              content) {
  var encodedTag = encodeTag(tag, primitive, cls, this.reporter);

  // Short form
  if (content.length < 0x80) {
    var header = new Buffer(2);
    header[0] = encodedTag;
    header[1] = content.length;
    return this._createEncoderBuffer([ header, content ]);
  }

  // Long form
  // Count octets required to store length
  var lenOctets = 1;
  for (var i = content.length; i >= 0x100; i >>= 8)
    lenOctets++;

  var header = new Buffer(1 + 1 + lenOctets);
  header[0] = encodedTag;
  header[1] = 0x80 | lenOctets;

  for (var i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8)
    header[i] = j & 0xff;

  return this._createEncoderBuffer([ header, content ]);
};

DERNode.prototype._encodeStr = function encodeStr(str, tag) {
  if (tag === 'bitstr') {
    return this._createEncoderBuffer([ str.unused | 0, str.data ]);
  } else if (tag === 'bmpstr') {
    var buf = new Buffer(str.length * 2);
    for (var i = 0; i < str.length; i++) {
      buf.writeUInt16BE(str.charCodeAt(i), i * 2);
    }
    return this._createEncoderBuffer(buf);
  } else if (tag === 'numstr') {
    if (!this._isNumstr(str)) {
      return this.reporter.error('Encoding of string type: numstr supports ' +
                                 'only digits and space');
    }
    return this._createEncoderBuffer(str);
  } else if (tag === 'printstr') {
    if (!this._isPrintstr(str)) {
      return this.reporter.error('Encoding of string type: printstr supports ' +
                                 'only latin upper and lower case letters, ' +
                                 'digits, space, apostrophe, left and rigth ' +
                                 'parenthesis, plus sign, comma, hyphen, ' +
                                 'dot, slash, colon, equal sign, ' +
                                 'question mark');
    }
    return this._createEncoderBuffer(str);
  } else if (/str$/.test(tag)) {
    return this._createEncoderBuffer(str);
  } else if (tag === 'objDesc') {
    return this._createEncoderBuffer(str);
  } else {
    return this.reporter.error('Encoding of string type: ' + tag +
                               ' unsupported');
  }
};

DERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) {
  if (typeof id === 'string') {
    if (!values)
      return this.reporter.error('string objid given, but no values map found');
    if (!values.hasOwnProperty(id))
      return this.reporter.error('objid not found in values map');
    id = values[id].split(/[\s\.]+/g);
    for (var i = 0; i < id.length; i++)
      id[i] |= 0;
  } else if (Array.isArray(id)) {
    id = id.slice();
    for (var i = 0; i < id.length; i++)
      id[i] |= 0;
  }

  if (!Array.isArray(id)) {
    return this.reporter.error('objid() should be either array or string, ' +
                               'got: ' + JSON.stringify(id));
  }

  if (!relative) {
    if (id[1] >= 40)
      return this.reporter.error('Second objid identifier OOB');
    id.splice(0, 2, id[0] * 40 + id[1]);
  }

  // Count number of octets
  var size = 0;
  for (var i = 0; i < id.length; i++) {
    var ident = id[i];
    for (size++; ident >= 0x80; ident >>= 7)
      size++;
  }

  var objid = new Buffer(size);
  var offset = objid.length - 1;
  for (var i = id.length - 1; i >= 0; i--) {
    var ident = id[i];
    objid[offset--] = ident & 0x7f;
    while ((ident >>= 7) > 0)
      objid[offset--] = 0x80 | (ident & 0x7f);
  }

  return this._createEncoderBuffer(objid);
};

function two(num) {
  if (num < 10)
    return '0' + num;
  else
    return num;
}

DERNode.prototype._encodeTime = function encodeTime(time, tag) {
  var str;
  var date = new Date(time);

  if (tag === 'gentime') {
    str = [
      two(date.getFullYear()),
      two(date.getUTCMonth() + 1),
      two(date.getUTCDate()),
      two(date.getUTCHours()),
      two(date.getUTCMinutes()),
      two(date.getUTCSeconds()),
      'Z'
    ].join('');
  } else if (tag === 'utctime') {
    str = [
      two(date.getFullYear() % 100),
      two(date.getUTCMonth() + 1),
      two(date.getUTCDate()),
      two(date.getUTCHours()),
      two(date.getUTCMinutes()),
      two(date.getUTCSeconds()),
      'Z'
    ].join('');
  } else {
    this.reporter.error('Encoding ' + tag + ' time is not supported yet');
  }

  return this._encodeStr(str, 'octstr');
};

DERNode.prototype._encodeNull = function encodeNull() {
  return this._createEncoderBuffer('');
};

DERNode.prototype._encodeInt = function encodeInt(num, values) {
  if (typeof num === 'string') {
    if (!values)
      return this.reporter.error('String int or enum given, but no values map');
    if (!values.hasOwnProperty(num)) {
      return this.reporter.error('Values map doesn\'t contain: ' +
                                 JSON.stringify(num));
    }
    num = values[num];
  }

  // Bignum, assume big endian
  if (typeof num !== 'number' && !Buffer.isBuffer(num)) {
    var numArray = num.toArray();
    if (!num.sign && numArray[0] & 0x80) {
      numArray.unshift(0);
    }
    num = new Buffer(numArray);
  }

  if (Buffer.isBuffer(num)) {
    var size = num.length;
    if (num.length === 0)
      size++;

    var out = new Buffer(size);
    num.copy(out);
    if (num.length === 0)
      out[0] = 0
    return this._createEncoderBuffer(out);
  }

  if (num < 0x80)
    return this._createEncoderBuffer(num);

  if (num < 0x100)
    return this._createEncoderBuffer([0, num]);

  var size = 1;
  for (var i = num; i >= 0x100; i >>= 8)
    size++;

  var out = new Array(size);
  for (var i = out.length - 1; i >= 0; i--) {
    out[i] = num & 0xff;
    num >>= 8;
  }
  if(out[0] & 0x80) {
    out.unshift(0);
  }

  return this._createEncoderBuffer(new Buffer(out));
};

DERNode.prototype._encodeBool = function encodeBool(value) {
  return this._createEncoderBuffer(value ? 0xff : 0);
};

DERNode.prototype._use = function use(entity, obj) {
  if (typeof entity === 'function')
    entity = entity(obj);
  return entity._getEncoder('der').tree;
};

DERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) {
  var state = this._baseState;
  var i;
  if (state['default'] === null)
    return false;

  var data = dataBuffer.join();
  if (state.defaultBuffer === undefined)
    state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join();

  if (data.length !== state.defaultBuffer.length)
    return false;

  for (i=0; i < data.length; i++)
    if (data[i] !== state.defaultBuffer[i])
      return false;

  return true;
};

// Utility methods

function encodeTag(tag, primitive, cls, reporter) {
  var res;

  if (tag === 'seqof')
    tag = 'seq';
  else if (tag === 'setof')
    tag = 'set';

  if (der.tagByName.hasOwnProperty(tag))
    res = der.tagByName[tag];
  else if (typeof tag === 'number' && (tag | 0) === tag)
    res = tag;
  else
    return reporter.error('Unknown tag: ' + tag);

  if (res >= 0x1f)
    return reporter.error('Multi-octet tag encoding unsupported');

  if (!primitive)
    res |= 0x20;

  res |= (der.tagClassByName[cls || 'universal'] << 6);

  return res;
}

},{"../../asn1":49,"buffer":95,"inherits":139}],61:[function(require,module,exports){
var encoders = exports;

encoders.der = require('./der');
encoders.pem = require('./pem');

},{"./der":60,"./pem":62}],62:[function(require,module,exports){
var inherits = require('inherits');

var DEREncoder = require('./der');

function PEMEncoder(entity) {
  DEREncoder.call(this, entity);
  this.enc = 'pem';
};
inherits(PEMEncoder, DEREncoder);
module.exports = PEMEncoder;

PEMEncoder.prototype.encode = function encode(data, options) {
  var buf = DEREncoder.prototype.encode.call(this, data);

  var p = buf.toString('base64');
  var out = [ '-----BEGIN ' + options.label + '-----' ];
  for (var i = 0; i < p.length; i += 64)
    out.push(p.slice(i, i + 64));
  out.push('-----END ' + options.label + '-----');
  return out.join('\n');
};

},{"./der":60,"inherits":139}],63:[function(require,module,exports){
// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
//
// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
//
// Originally from narwhal.js (http://narwhaljs.org)
// Copyright (c) 2009 Thomas Robinson <280north.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the 'Software'), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

// when used in node, this will actually load the util module we depend on
// versus loading the builtin util module as happens otherwise
// this is a bug in node module loading as far as I am concerned
var util = require('util/');

var pSlice = Array.prototype.slice;
var hasOwn = Object.prototype.hasOwnProperty;

// 1. The assert module provides functions that throw
// AssertionError's when particular conditions are not met. The
// assert module must conform to the following interface.

var assert = module.exports = ok;

// 2. The AssertionError is defined in assert.
// new assert.AssertionError({ message: message,
//                             actual: actual,
//                             expected: expected })

assert.AssertionError = function AssertionError(options) {
  this.name = 'AssertionError';
  this.actual = options.actual;
  this.expected = options.expected;
  this.operator = options.operator;
  if (options.message) {
    this.message = options.message;
    this.generatedMessage = false;
  } else {
    this.message = getMessage(this);
    this.generatedMessage = true;
  }
  var stackStartFunction = options.stackStartFunction || fail;

  if (Error.captureStackTrace) {
    Error.captureStackTrace(this, stackStartFunction);
  }
  else {
    // non v8 browsers so we can have a stacktrace
    var err = new Error();
    if (err.stack) {
      var out = err.stack;

      // try to strip useless frames
      var fn_name = stackStartFunction.name;
      var idx = out.indexOf('\n' + fn_name);
      if (idx >= 0) {
        // once we have located the function frame
        // we need to strip out everything before it (and its line)
        var next_line = out.indexOf('\n', idx + 1);
        out = out.substring(next_line + 1);
      }

      this.stack = out;
    }
  }
};

// assert.AssertionError instanceof Error
util.inherits(assert.AssertionError, Error);

function replacer(key, value) {
  if (util.isUndefined(value)) {
    return '' + value;
  }
  if (util.isNumber(value) && !isFinite(value)) {
    return value.toString();
  }
  if (util.isFunction(value) || util.isRegExp(value)) {
    return value.toString();
  }
  return value;
}

function truncate(s, n) {
  if (util.isString(s)) {
    return s.length < n ? s : s.slice(0, n);
  } else {
    return s;
  }
}

function getMessage(self) {
  return truncate(JSON.stringify(self.actual, replacer), 128) + ' ' +
         self.operator + ' ' +
         truncate(JSON.stringify(self.expected, replacer), 128);
}

// At present only the three keys mentioned above are used and
// understood by the spec. Implementations or sub modules can pass
// other keys to the AssertionError's constructor - they will be
// ignored.

// 3. All of the following functions must throw an AssertionError
// when a corresponding condition is not met, with a message that
// may be undefined if not provided.  All assertion methods provide
// both the actual and expected values to the assertion error for
// display purposes.

function fail(actual, expected, message, operator, stackStartFunction) {
  throw new assert.AssertionError({
    message: message,
    actual: actual,
    expected: expected,
    operator: operator,
    stackStartFunction: stackStartFunction
  });
}

// EXTENSION! allows for well behaved errors defined elsewhere.
assert.fail = fail;

// 4. Pure assertion tests whether a value is truthy, as determined
// by !!guard.
// assert.ok(guard, message_opt);
// This statement is equivalent to assert.equal(true, !!guard,
// message_opt);. To test strictly for the value true, use
// assert.strictEqual(true, guard, message_opt);.

function ok(value, message) {
  if (!value) fail(value, true, message, '==', assert.ok);
}
assert.ok = ok;

// 5. The equality assertion tests shallow, coercive equality with
// ==.
// assert.equal(actual, expected, message_opt);

assert.equal = function equal(actual, expected, message) {
  if (actual != expected) fail(actual, expected, message, '==', assert.equal);
};

// 6. The non-equality assertion tests for whether two objects are not equal
// with != assert.notEqual(actual, expected, message_opt);

assert.notEqual = function notEqual(actual, expected, message) {
  if (actual == expected) {
    fail(actual, expected, message, '!=', assert.notEqual);
  }
};

// 7. The equivalence assertion tests a deep equality relation.
// assert.deepEqual(actual, expected, message_opt);

assert.deepEqual = function deepEqual(actual, expected, message) {
  if (!_deepEqual(actual, expected)) {
    fail(actual, expected, message, 'deepEqual', assert.deepEqual);
  }
};

function _deepEqual(actual, expected) {
  // 7.1. All identical values are equivalent, as determined by ===.
  if (actual === expected) {
    return true;

  } else if (util.isBuffer(actual) && util.isBuffer(expected)) {
    if (actual.length != expected.length) return false;

    for (var i = 0; i < actual.length; i++) {
      if (actual[i] !== expected[i]) return false;
    }

    return true;

  // 7.2. If the expected value is a Date object, the actual value is
  // equivalent if it is also a Date object that refers to the same time.
  } else if (util.isDate(actual) && util.isDate(expected)) {
    return actual.getTime() === expected.getTime();

  // 7.3 If the expected value is a RegExp object, the actual value is
  // equivalent if it is also a RegExp object with the same source and
  // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
  } else if (util.isRegExp(actual) && util.isRegExp(expected)) {
    return actual.source === expected.source &&
           actual.global === expected.global &&
           actual.multiline === expected.multiline &&
           actual.lastIndex === expected.lastIndex &&
           actual.ignoreCase === expected.ignoreCase;

  // 7.4. Other pairs that do not both pass typeof value == 'object',
  // equivalence is determined by ==.
  } else if (!util.isObject(actual) && !util.isObject(expected)) {
    return actual == expected;

  // 7.5 For all other Object pairs, including Array objects, equivalence is
  // determined by having the same number of owned properties (as verified
  // with Object.prototype.hasOwnProperty.call), the same set of keys
  // (although not necessarily the same order), equivalent values for every
  // corresponding key, and an identical 'prototype' property. Note: this
  // accounts for both named and indexed properties on Arrays.
  } else {
    return objEquiv(actual, expected);
  }
}

function isArguments(object) {
  return Object.prototype.toString.call(object) == '[object Arguments]';
}

function objEquiv(a, b) {
  if (util.isNullOrUndefined(a) || util.isNullOrUndefined(b))
    return false;
  // an identical 'prototype' property.
  if (a.prototype !== b.prototype) return false;
  // if one is a primitive, the other must be same
  if (util.isPrimitive(a) || util.isPrimitive(b)) {
    return a === b;
  }
  var aIsArgs = isArguments(a),
      bIsArgs = isArguments(b);
  if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
    return false;
  if (aIsArgs) {
    a = pSlice.call(a);
    b = pSlice.call(b);
    return _deepEqual(a, b);
  }
  var ka = objectKeys(a),
      kb = objectKeys(b),
      key, i;
  // having the same number of owned properties (keys incorporates
  // hasOwnProperty)
  if (ka.length != kb.length)
    return false;
  //the same set of keys (although not necessarily the same order),
  ka.sort();
  kb.sort();
  //~~~cheap key test
  for (i = ka.length - 1; i >= 0; i--) {
    if (ka[i] != kb[i])
      return false;
  }
  //equivalent values for every corresponding key, and
  //~~~possibly expensive deep test
  for (i = ka.length - 1; i >= 0; i--) {
    key = ka[i];
    if (!_deepEqual(a[key], b[key])) return false;
  }
  return true;
}

// 8. The non-equivalence assertion tests for any deep inequality.
// assert.notDeepEqual(actual, expected, message_opt);

assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
  if (_deepEqual(actual, expected)) {
    fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
  }
};

// 9. The strict equality assertion tests strict equality, as determined by ===.
// assert.strictEqual(actual, expected, message_opt);

assert.strictEqual = function strictEqual(actual, expected, message) {
  if (actual !== expected) {
    fail(actual, expected, message, '===', assert.strictEqual);
  }
};

// 10. The strict non-equality assertion tests for strict inequality, as
// determined by !==.  assert.notStrictEqual(actual, expected, message_opt);

assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
  if (actual === expected) {
    fail(actual, expected, message, '!==', assert.notStrictEqual);
  }
};

function expectedException(actual, expected) {
  if (!actual || !expected) {
    return false;
  }

  if (Object.prototype.toString.call(expected) == '[object RegExp]') {
    return expected.test(actual);
  } else if (actual instanceof expected) {
    return true;
  } else if (expected.call({}, actual) === true) {
    return true;
  }

  return false;
}

function _throws(shouldThrow, block, expected, message) {
  var actual;

  if (util.isString(expected)) {
    message = expected;
    expected = null;
  }

  try {
    block();
  } catch (e) {
    actual = e;
  }

  message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
            (message ? ' ' + message : '.');

  if (shouldThrow && !actual) {
    fail(actual, expected, 'Missing expected exception' + message);
  }

  if (!shouldThrow && expectedException(actual, expected)) {
    fail(actual, expected, 'Got unwanted exception' + message);
  }

  if ((shouldThrow && actual && expected &&
      !expectedException(actual, expected)) || (!shouldThrow && actual)) {
    throw actual;
  }
}

// 11. Expected to throw an error:
// assert.throws(block, Error_opt, message_opt);

assert.throws = function(block, /*optional*/error, /*optional*/message) {
  _throws.apply(this, [true].concat(pSlice.call(arguments)));
};

// EXTENSION! This is annoying to write outside this module.
assert.doesNotThrow = function(block, /*optional*/message) {
  _throws.apply(this, [false].concat(pSlice.call(arguments)));
};

assert.ifError = function(err) { if (err) {throw err;}};

var objectKeys = Object.keys || function (obj) {
  var keys = [];
  for (var key in obj) {
    if (hasOwn.call(obj, key)) keys.push(key);
  }
  return keys;
};

},{"util/":194}],64:[function(require,module,exports){
var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';

;(function (exports) {
	'use strict';

  var Arr = (typeof Uint8Array !== 'undefined')
    ? Uint8Array
    : Array

	var PLUS   = '+'.charCodeAt(0)
	var SLASH  = '/'.charCodeAt(0)
	var NUMBER = '0'.charCodeAt(0)
	var LOWER  = 'a'.charCodeAt(0)
	var UPPER  = 'A'.charCodeAt(0)
	var PLUS_URL_SAFE = '-'.charCodeAt(0)
	var SLASH_URL_SAFE = '_'.charCodeAt(0)

	function decode (elt) {
		var code = elt.charCodeAt(0)
		if (code === PLUS ||
		    code === PLUS_URL_SAFE)
			return 62 // '+'
		if (code === SLASH ||
		    code === SLASH_URL_SAFE)
			return 63 // '/'
		if (code < NUMBER)
			return -1 //no match
		if (code < NUMBER + 10)
			return code - NUMBER + 26 + 26
		if (code < UPPER + 26)
			return code - UPPER
		if (code < LOWER + 26)
			return code - LOWER + 26
	}

	function b64ToByteArray (b64) {
		var i, j, l, tmp, placeHolders, arr

		if (b64.length % 4 > 0) {
			throw new Error('Invalid string. Length must be a multiple of 4')
		}

		// the number of equal signs (place holders)
		// if there are two placeholders, than the two characters before it
		// represent one byte
		// if there is only one, then the three characters before it represent 2 bytes
		// this is just a cheap hack to not do indexOf twice
		var len = b64.length
		placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0

		// base64 is 4/3 + up to two characters of the original data
		arr = new Arr(b64.length * 3 / 4 - placeHolders)

		// if there are placeholders, only get up to the last complete 4 chars
		l = placeHolders > 0 ? b64.length - 4 : b64.length

		var L = 0

		function push (v) {
			arr[L++] = v
		}

		for (i = 0, j = 0; i < l; i += 4, j += 3) {
			tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3))
			push((tmp & 0xFF0000) >> 16)
			push((tmp & 0xFF00) >> 8)
			push(tmp & 0xFF)
		}

		if (placeHolders === 2) {
			tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4)
			push(tmp & 0xFF)
		} else if (placeHolders === 1) {
			tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2)
			push((tmp >> 8) & 0xFF)
			push(tmp & 0xFF)
		}

		return arr
	}

	function uint8ToBase64 (uint8) {
		var i,
			extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
			output = "",
			temp, length

		function encode (num) {
			return lookup.charAt(num)
		}

		function tripletToBase64 (num) {
			return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
		}

		// go through the array every three bytes, we'll deal with trailing stuff later
		for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
			temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
			output += tripletToBase64(temp)
		}

		// pad the end with zeros, but make sure to not forget the extra bytes
		switch (extraBytes) {
			case 1:
				temp = uint8[uint8.length - 1]
				output += encode(temp >> 2)
				output += encode((temp << 4) & 0x3F)
				output += '=='
				break
			case 2:
				temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1])
				output += encode(temp >> 10)
				output += encode((temp >> 4) & 0x3F)
				output += encode((temp << 2) & 0x3F)
				output += '='
				break
		}

		return output
	}

	exports.toByteArray = b64ToByteArray
	exports.fromByteArray = uint8ToBase64
}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))

},{}],65:[function(require,module,exports){
(function (module, exports) {

'use strict';

// Utils

function assert(val, msg) {
  if (!val)
    throw new Error(msg || 'Assertion failed');
}

// Could use `inherits` module, but don't want to move from single file
// architecture yet.
function inherits(ctor, superCtor) {
  ctor.super_ = superCtor;
  var TempCtor = function () {};
  TempCtor.prototype = superCtor.prototype;
  ctor.prototype = new TempCtor();
  ctor.prototype.constructor = ctor;
}

// BN

function BN(number, base, endian) {
  // May be `new BN(bn)` ?
  if (number !== null &&
      typeof number === 'object' &&
      Array.isArray(number.words)) {
    return number;
  }

  this.sign = false;
  this.words = null;
  this.length = 0;

  // Reduction context
  this.red = null;

  if (base === 'le' || base === 'be') {
    endian = base;
    base = 10;
  }

  if (number !== null)
    this._init(number || 0, base || 10, endian || 'be');
}
if (typeof module === 'object')
  module.exports = BN;
else
  exports.BN = BN;

BN.BN = BN;
BN.wordSize = 26;

BN.prototype._init = function init(number, base, endian) {
  if (typeof number === 'number') {
    if (number < 0) {
      this.sign = true;
      number = -number;
    }
    if (number < 0x4000000) {
      this.words = [ number & 0x3ffffff ];
      this.length = 1;
    } else if (number < 0x10000000000000) {
      this.words = [
        number & 0x3ffffff,
        (number / 0x4000000) & 0x3ffffff
      ];
      this.length = 2;
    } else {
      assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)
      this.words = [
        number & 0x3ffffff,
        (number / 0x4000000) & 0x3ffffff,
        1
      ];
      this.length = 3;
    }
    return;
  } else if (typeof number === 'object') {
    return this._initArray(number, base, endian);
  }
  if (base === 'hex')
    base = 16;
  assert(base === (base | 0) && base >= 2 && base <= 36);

  number = number.toString().replace(/\s+/g, '');
  var start = 0;
  if (number[0] === '-')
    start++;

  if (base === 16)
    this._parseHex(number, start);
  else
    this._parseBase(number, base, start);

  if (number[0] === '-')
    this.sign = true;

  this.strip();
};

BN.prototype._initArray = function _initArray(number, base, endian) {
  // Perhaps a Uint8Array
  assert(typeof number.length === 'number');
  if (number.length <= 0) {
    this.words = [ 0 ];
    this.length = 1;
    return this;
  }

  this.length = Math.ceil(number.length / 3);
  this.words = new Array(this.length);
  for (var i = 0; i < this.length; i++)
    this.words[i] = 0;

  var off = 0;
  if (endian === 'be') {
    for (var i = number.length - 1, j = 0; i >= 0; i -= 3) {
      var w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);
      this.words[j] |= (w << off) & 0x3ffffff;
      this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
      off += 24;
      if (off >= 26) {
        off -= 26;
        j++;
      }
    }
  } else if (endian === 'le') {
    for (var i = 0, j = 0; i < number.length; i += 3) {
      var w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);
      this.words[j] |= (w << off) & 0x3ffffff;
      this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
      off += 24;
      if (off >= 26) {
        off -= 26;
        j++;
      }
    }
  }
  return this.strip();
};

function parseHex(str, start, end) {
  var r = 0;
  var len = Math.min(str.length, end);
  for (var i = start; i < len; i++) {
    var c = str.charCodeAt(i) - 48;

    r <<= 4;

    // 'a' - 'f'
    if (c >= 49 && c <= 54)
      r |= c - 49 + 0xa;

    // 'A' - 'F'
    else if (c >= 17 && c <= 22)
      r |= c - 17 + 0xa;

    // '0' - '9'
    else
      r |= c & 0xf;
  }
  return r;
}

BN.prototype._parseHex = function _parseHex(number, start) {
  // Create possibly bigger array to ensure that it fits the number
  this.length = Math.ceil((number.length - start) / 6);
  this.words = new Array(this.length);
  for (var i = 0; i < this.length; i++)
    this.words[i] = 0;

  // Scan 24-bit chunks and add them to the number
  var off = 0;
  for (var i = number.length - 6, j = 0; i >= start; i -= 6) {
    var w = parseHex(number, i, i + 6);
    this.words[j] |= (w << off) & 0x3ffffff;
    this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
    off += 24;
    if (off >= 26) {
      off -= 26;
      j++;
    }
  }
  if (i + 6 !== start) {
    var w = parseHex(number, start, i + 6);
    this.words[j] |= (w << off) & 0x3ffffff;
    this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
  }
  this.strip();
};

function parseBase(str, start, end, mul) {
  var r = 0;
  var len = Math.min(str.length, end);
  for (var i = start; i < len; i++) {
    var c = str.charCodeAt(i) - 48;

    r *= mul;

    // 'a'
    if (c >= 49)
      r += c - 49 + 0xa;

    // 'A'
    else if (c >= 17)
      r += c - 17 + 0xa;

    // '0' - '9'
    else
      r += c;
  }
  return r;
}

BN.prototype._parseBase = function _parseBase(number, base, start) {
  // Initialize as zero
  this.words = [ 0 ];
  this.length = 1;

  // Find length of limb in base
  for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base)
    limbLen++;
  limbLen--;
  limbPow = (limbPow / base) | 0;

  var total = number.length - start;
  var mod = total % limbLen;
  var end = Math.min(total, total - mod) + start;

  var word = 0;
  for (var i = start; i < end; i += limbLen) {
    word = parseBase(number, i, i + limbLen, base);

    this.imuln(limbPow);
    if (this.words[0] + word < 0x4000000)
      this.words[0] += word;
    else
      this._iaddn(word);
  }

  if (mod !== 0) {
    var pow = 1;
    var word = parseBase(number, i, number.length, base);

    for (var i = 0; i < mod; i++)
      pow *= base;
    this.imuln(pow);
    if (this.words[0] + word < 0x4000000)
      this.words[0] += word;
    else
      this._iaddn(word);
  }
};

BN.prototype.copy = function copy(dest) {
  dest.words = new Array(this.length);
  for (var i = 0; i < this.length; i++)
    dest.words[i] = this.words[i];
  dest.length = this.length;
  dest.sign = this.sign;
  dest.red = this.red;
};

BN.prototype.clone = function clone() {
  var r = new BN(null);
  this.copy(r);
  return r;
};

// Remove leading `0` from `this`
BN.prototype.strip = function strip() {
  while (this.length > 1 && this.words[this.length - 1] === 0)
    this.length--;
  return this._normSign();
};

BN.prototype._normSign = function _normSign() {
  // -0 = 0
  if (this.length === 1 && this.words[0] === 0)
    this.sign = false;
  return this;
};

BN.prototype.inspect = function inspect() {
  return (this.red ? '<BN-R: ' : '<BN: ') + this.toString(16) + '>';
};

/*

var zeros = [];
var groupSizes = [];
var groupBases = [];

var s = '';
var i = -1;
while (++i < BN.wordSize) {
  zeros[i] = s;
  s += '0';
}
groupSizes[0] = 0;
groupSizes[1] = 0;
groupBases[0] = 0;
groupBases[1] = 0;
var base = 2 - 1;
while (++base < 36 + 1) {
  var groupSize = 0;
  var groupBase = 1;
  while (groupBase < (1 << BN.wordSize) / base) {
    groupBase *= base;
    groupSize += 1;
  }
  groupSizes[base] = groupSize;
  groupBases[base] = groupBase;
}

*/

var zeros = [
  '',
  '0',
  '00',
  '000',
  '0000',
  '00000',
  '000000',
  '0000000',
  '00000000',
  '000000000',
  '0000000000',
  '00000000000',
  '000000000000',
  '0000000000000',
  '00000000000000',
  '000000000000000',
  '0000000000000000',
  '00000000000000000',
  '000000000000000000',
  '0000000000000000000',
  '00000000000000000000',
  '000000000000000000000',
  '0000000000000000000000',
  '00000000000000000000000',
  '000000000000000000000000',
  '0000000000000000000000000'
];

var groupSizes = [
  0, 0,
  25, 16, 12, 11, 10, 9, 8,
  8, 7, 7, 7, 7, 6, 6,
  6, 6, 6, 6, 6, 5, 5,
  5, 5, 5, 5, 5, 5, 5,
  5, 5, 5, 5, 5, 5, 5
];

var groupBases = [
  0, 0,
  33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216,
  43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625,
  16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632,
  6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149,
  24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176
];

BN.prototype.toString = function toString(base, padding) {
  base = base || 10;
  if (base === 16 || base === 'hex') {
    var out = '';
    var off = 0;
    var padding = padding | 0 || 1;
    var carry = 0;
    for (var i = 0; i < this.length; i++) {
      var w = this.words[i];
      var word = (((w << off) | carry) & 0xffffff).toString(16);
      carry = (w >>> (24 - off)) & 0xffffff;
      if (carry !== 0 || i !== this.length - 1)
        out = zeros[6 - word.length] + word + out;
      else
        out = word + out;
      off += 2;
      if (off >= 26) {
        off -= 26;
        i--;
      }
    }
    if (carry !== 0)
      out = carry.toString(16) + out;
    while (out.length % padding !== 0)
      out = '0' + out;
    if (this.sign)
      out = '-' + out;
    return out;
  } else if (base === (base | 0) && base >= 2 && base <= 36) {
    // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base));
    var groupSize = groupSizes[base];
    // var groupBase = Math.pow(base, groupSize);
    var groupBase = groupBases[base];
    var out = '';
    var c = this.clone();
    c.sign = false;
    while (c.cmpn(0) !== 0) {
      var r = c.modn(groupBase).toString(base);
      c = c.idivn(groupBase);

      if (c.cmpn(0) !== 0)
        out = zeros[groupSize - r.length] + r + out;
      else
        out = r + out;
    }
    if (this.cmpn(0) === 0)
      out = '0' + out;
    if (this.sign)
      out = '-' + out;
    return out;
  } else {
    assert(false, 'Base should be between 2 and 36');
  }
};

BN.prototype.toJSON = function toJSON() {
  return this.toString(16);
};

BN.prototype.toArray = function toArray() {
  this.strip();
  var res = new Array(this.byteLength());
  res[0] = 0;

  var q = this.clone();
  for (var i = 0; q.cmpn(0) !== 0; i++) {
    var b = q.andln(0xff);
    q.ishrn(8);

    // Assume big-endian
    res[res.length - i - 1] = b;
  }

  return res;
};

if (Math.clz32) {
  BN.prototype._countBits = function _countBits(w) {
    return 32 - Math.clz32(w);
  };
} else {
  BN.prototype._countBits = function _countBits(w) {
    var t = w;
    var r = 0;
    if (t >= 0x1000) {
      r += 13;
      t >>>= 13;
    }
    if (t >= 0x40) {
      r += 7;
      t >>>= 7;
    }
    if (t >= 0x8) {
      r += 4;
      t >>>= 4;
    }
    if (t >= 0x02) {
      r += 2;
      t >>>= 2;
    }
    return r + t;
  };
}

BN.prototype._zeroBits = function _zeroBits(w) {
  // Short-cut
  if (w === 0)
    return 26;

  var t = w;
  var r = 0;
  if ((t & 0x1fff) === 0) {
    r += 13;
    t >>>= 13;
  }
  if ((t & 0x7f) === 0) {
    r += 7;
    t >>>= 7;
  }
  if ((t & 0xf) === 0) {
    r += 4;
    t >>>= 4;
  }
  if ((t & 0x3) === 0) {
    r += 2;
    t >>>= 2;
  }
  if ((t & 0x1) === 0)
    r++;
  return r;
};

// Return number of used bits in a BN
BN.prototype.bitLength = function bitLength() {
  var hi = 0;
  var w = this.words[this.length - 1];
  var hi = this._countBits(w);
  return (this.length - 1) * 26 + hi;
};

// Number of trailing zero bits
BN.prototype.zeroBits = function zeroBits() {
  if (this.cmpn(0) === 0)
    return 0;

  var r = 0;
  for (var i = 0; i < this.length; i++) {
    var b = this._zeroBits(this.words[i]);
    r += b;
    if (b !== 26)
      break;
  }
  return r;
};

BN.prototype.byteLength = function byteLength() {
  return Math.ceil(this.bitLength() / 8);
};

// Return negative clone of `this`
BN.prototype.neg = function neg() {
  if (this.cmpn(0) === 0)
    return this.clone();

  var r = this.clone();
  r.sign = !this.sign;
  return r;
};


// Or `num` with `this` in-place
BN.prototype.ior = function ior(num) {
  this.sign = this.sign || num.sign;

  while (this.length < num.length)
    this.words[this.length++] = 0;

  for (var i = 0; i < num.length; i++)
    this.words[i] = this.words[i] | num.words[i];

  return this.strip();
};


// Or `num` with `this`
BN.prototype.or = function or(num) {
  if (this.length > num.length)
    return this.clone().ior(num);
  else
    return num.clone().ior(this);
};


// And `num` with `this` in-place
BN.prototype.iand = function iand(num) {
  this.sign = this.sign && num.sign;

  // b = min-length(num, this)
  var b;
  if (this.length > num.length)
    b = num;
  else
    b = this;

  for (var i = 0; i < b.length; i++)
    this.words[i] = this.words[i] & num.words[i];

  this.length = b.length;

  return this.strip();
};


// And `num` with `this`
BN.prototype.and = function and(num) {
  if (this.length > num.length)
    return this.clone().iand(num);
  else
    return num.clone().iand(this);
};


// Xor `num` with `this` in-place
BN.prototype.ixor = function ixor(num) {
  this.sign = this.sign || num.sign;

  // a.length > b.length
  var a;
  var b;
  if (this.length > num.length) {
    a = this;
    b = num;
  } else {
    a = num;
    b = this;
  }

  for (var i = 0; i < b.length; i++)
    this.words[i] = a.words[i] ^ b.words[i];

  if (this !== a)
    for (; i < a.length; i++)
      this.words[i] = a.words[i];

  this.length = a.length;

  return this.strip();
};


// Xor `num` with `this`
BN.prototype.xor = function xor(num) {
  if (this.length > num.length)
    return this.clone().ixor(num);
  else
    return num.clone().ixor(this);
};


// Set `bit` of `this`
BN.prototype.setn = function setn(bit, val) {
  assert(typeof bit === 'number' && bit >= 0);

  var off = (bit / 26) | 0;
  var wbit = bit % 26;

  while (this.length <= off)
    this.words[this.length++] = 0;

  if (val)
    this.words[off] = this.words[off] | (1 << wbit);
  else
    this.words[off] = this.words[off] & ~(1 << wbit);

  return this.strip();
};


// Add `num` to `this` in-place
BN.prototype.iadd = function iadd(num) {
  // negative + positive
  if (this.sign && !num.sign) {
    this.sign = false;
    var r = this.isub(num);
    this.sign = !this.sign;
    return this._normSign();

  // positive + negative
  } else if (!this.sign && num.sign) {
    num.sign = false;
    var r = this.isub(num);
    num.sign = true;
    return r._normSign();
  }

  // a.length > b.length
  var a;
  var b;
  if (this.length > num.length) {
    a = this;
    b = num;
  } else {
    a = num;
    b = this;
  }

  var carry = 0;
  for (var i = 0; i < b.length; i++) {
    var r = a.words[i] + b.words[i] + carry;
    this.words[i] = r & 0x3ffffff;
    carry = r >>> 26;
  }
  for (; carry !== 0 && i < a.length; i++) {
    var r = a.words[i] + carry;
    this.words[i] = r & 0x3ffffff;
    carry = r >>> 26;
  }

  this.length = a.length;
  if (carry !== 0) {
    this.words[this.length] = carry;
    this.length++;
  // Copy the rest of the words
  } else if (a !== this) {
    for (; i < a.length; i++)
      this.words[i] = a.words[i];
  }

  return this;
};

// Add `num` to `this`
BN.prototype.add = function add(num) {
  if (num.sign && !this.sign) {
    num.sign = false;
    var res = this.sub(num);
    num.sign = true;
    return res;
  } else if (!num.sign && this.sign) {
    this.sign = false;
    var res = num.sub(this);
    this.sign = true;
    return res;
  }

  if (this.length > num.length)
    return this.clone().iadd(num);
  else
    return num.clone().iadd(this);
};

// Subtract `num` from `this` in-place
BN.prototype.isub = function isub(num) {
  // this - (-num) = this + num
  if (num.sign) {
    num.sign = false;
    var r = this.iadd(num);
    num.sign = true;
    return r._normSign();

  // -this - num = -(this + num)
  } else if (this.sign) {
    this.sign = false;
    this.iadd(num);
    this.sign = true;
    return this._normSign();
  }

  // At this point both numbers are positive
  var cmp = this.cmp(num);

  // Optimization - zeroify
  if (cmp === 0) {
    this.sign = false;
    this.length = 1;
    this.words[0] = 0;
    return this;
  }

  // a > b
  var a;
  var b;
  if (cmp > 0) {
    a = this;
    b = num;
  } else {
    a = num;
    b = this;
  }

  var carry = 0;
  for (var i = 0; i < b.length; i++) {
    var r = a.words[i] - b.words[i] + carry;
    carry = r >> 26;
    this.words[i] = r & 0x3ffffff;
  }
  for (; carry !== 0 && i < a.length; i++) {
    var r = a.words[i] + carry;
    carry = r >> 26;
    this.words[i] = r & 0x3ffffff;
  }

  // Copy rest of the words
  if (carry === 0 && i < a.length && a !== this)
    for (; i < a.length; i++)
      this.words[i] = a.words[i];
  this.length = Math.max(this.length, i);

  if (a !== this)
    this.sign = true;

  return this.strip();
};

// Subtract `num` from `this`
BN.prototype.sub = function sub(num) {
  return this.clone().isub(num);
};

/*
// NOTE: This could be potentionally used to generate loop-less multiplications
function _genCombMulTo(alen, blen) {
  var len = alen + blen - 1;
  var src = [
    'var a = this.words, b = num.words, o = out.words, c = 0, w, ' +
        'mask = 0x3ffffff, shift = 0x4000000;',
    'out.length = ' + len + ';'
  ];
  for (var k = 0; k < len; k++) {
    var minJ = Math.max(0, k - alen + 1);
    var maxJ = Math.min(k, blen - 1);

    for (var j = minJ; j <= maxJ; j++) {
      var i = k - j;
      var mul = 'a[' + i + '] * b[' + j + ']';

      if (j === minJ) {
        src.push('w = ' + mul + ' + c;');
        src.push('c = (w / shift) | 0;');
      } else {
        src.push('w += ' + mul + ';');
        src.push('c += (w / shift) | 0;');
      }
      src.push('w &= mask;');
    }
    src.push('o[' + k + '] = w;');
  }
  src.push('if (c !== 0) {',
           '  o[' + k + '] = c;',
           '  out.length++;',
           '}',
           'return out;');

  return src.join('\n');
}
*/

BN.prototype._smallMulTo = function _smallMulTo(num, out) {
  out.sign = num.sign !== this.sign;
  out.length = this.length + num.length;

  var carry = 0;
  for (var k = 0; k < out.length - 1; k++) {
    // Sum all words with the same `i + j = k` and accumulate `ncarry`,
    // note that ncarry could be >= 0x3ffffff
    var ncarry = carry >>> 26;
    var rword = carry & 0x3ffffff;
    var maxJ = Math.min(k, num.length - 1);
    for (var j = Math.max(0, k - this.length + 1); j <= maxJ; j++) {
      var i = k - j;
      var a = this.words[i] | 0;
      var b = num.words[j] | 0;
      var r = a * b;

      var lo = r & 0x3ffffff;
      ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0;
      lo = (lo + rword) | 0;
      rword = lo & 0x3ffffff;
      ncarry = (ncarry + (lo >>> 26)) | 0;
    }
    out.words[k] = rword;
    carry = ncarry;
  }
  if (carry !== 0) {
    out.words[k] = carry;
  } else {
    out.length--;
  }

  return out.strip();
};

BN.prototype._bigMulTo = function _bigMulTo(num, out) {
  out.sign = num.sign !== this.sign;
  out.length = this.length + num.length;

  var carry = 0;
  var hncarry = 0;
  for (var k = 0; k < out.length - 1; k++) {
    // Sum all words with the same `i + j = k` and accumulate `ncarry`,
    // note that ncarry could be >= 0x3ffffff
    var ncarry = hncarry;
    hncarry = 0;
    var rword = carry & 0x3ffffff;
    var maxJ = Math.min(k, num.length - 1);
    for (var j = Math.max(0, k - this.length + 1); j <= maxJ; j++) {
      var i = k - j;
      var a = this.words[i] | 0;
      var b = num.words[j] | 0;
      var r = a * b;

      var lo = r & 0x3ffffff;
      ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0;
      lo = (lo + rword) | 0;
      rword = lo & 0x3ffffff;
      ncarry = (ncarry + (lo >>> 26)) | 0;

      hncarry += ncarry >>> 26;
      ncarry &= 0x3ffffff;
    }
    out.words[k] = rword;
    carry = ncarry;
    ncarry = hncarry;
  }
  if (carry !== 0) {
    out.words[k] = carry;
  } else {
    out.length--;
  }

  return out.strip();
};

BN.prototype.mulTo = function mulTo(num, out) {
  var res;
  if (this.length + num.length < 63)
    res = this._smallMulTo(num, out);
  else
    res = this._bigMulTo(num, out);
  return res;
};

// Multiply `this` by `num`
BN.prototype.mul = function mul(num) {
  var out = new BN(null);
  out.words = new Array(this.length + num.length);
  return this.mulTo(num, out);
};

// In-place Multiplication
BN.prototype.imul = function imul(num) {
  if (this.cmpn(0) === 0 || num.cmpn(0) === 0) {
    this.words[0] = 0;
    this.length = 1;
    return this;
  }

  var tlen = this.length;
  var nlen = num.length;

  this.sign = num.sign !== this.sign;
  this.length = this.length + num.length;
  this.words[this.length - 1] = 0;

  for (var k = this.length - 2; k >= 0; k--) {
    // Sum all words with the same `i + j = k` and accumulate `carry`,
    // note that carry could be >= 0x3ffffff
    var carry = 0;
    var rword = 0;
    var maxJ = Math.min(k, nlen - 1);
    for (var j = Math.max(0, k - tlen + 1); j <= maxJ; j++) {
      var i = k - j;
      var a = this.words[i];
      var b = num.words[j];
      var r = a * b;

      var lo = r & 0x3ffffff;
      carry += (r / 0x4000000) | 0;
      lo += rword;
      rword = lo & 0x3ffffff;
      carry += lo >>> 26;
    }
    this.words[k] = rword;
    this.words[k + 1] += carry;
    carry = 0;
  }

  // Propagate overflows
  var carry = 0;
  for (var i = 1; i < this.length; i++) {
    var w = this.words[i] + carry;
    this.words[i] = w & 0x3ffffff;
    carry = w >>> 26;
  }

  return this.strip();
};

BN.prototype.imuln = function imuln(num) {
  assert(typeof num === 'number');

  // Carry
  var carry = 0;
  for (var i = 0; i < this.length; i++) {
    var w = this.words[i] * num;
    var lo = (w & 0x3ffffff) + (carry & 0x3ffffff);
    carry >>= 26;
    carry += (w / 0x4000000) | 0;
    // NOTE: lo is 27bit maximum
    carry += lo >>> 26;
    this.words[i] = lo & 0x3ffffff;
  }

  if (carry !== 0) {
    this.words[i] = carry;
    this.length++;
  }

  return this;
};

// `this` * `this`
BN.prototype.sqr = function sqr() {
  return this.mul(this);
};

// `this` * `this` in-place
BN.prototype.isqr = function isqr() {
  return this.mul(this);
};

// Shift-left in-place
BN.prototype.ishln = function ishln(bits) {
  assert(typeof bits === 'number' && bits >= 0);
  var r = bits % 26;
  var s = (bits - r) / 26;
  var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r);

  if (r !== 0) {
    var carry = 0;
    for (var i = 0; i < this.length; i++) {
      var newCarry = this.words[i] & carryMask;
      var c = (this.words[i] - newCarry) << r;
      this.words[i] = c | carry;
      carry = newCarry >>> (26 - r);
    }
    if (carry) {
      this.words[i] = carry;
      this.length++;
    }
  }

  if (s !== 0) {
    for (var i = this.length - 1; i >= 0; i--)
      this.words[i + s] = this.words[i];
    for (var i = 0; i < s; i++)
      this.words[i] = 0;
    this.length += s;
  }

  return this.strip();
};

// Shift-right in-place
// NOTE: `hint` is a lowest bit before trailing zeroes
// NOTE: if `extended` is present - it will be filled with destroyed bits
BN.prototype.ishrn = function ishrn(bits, hint, extended) {
  assert(typeof bits === 'number' && bits >= 0);
  var h;
  if (hint)
    h = (hint - (hint % 26)) / 26;
  else
    h = 0;

  var r = bits % 26;
  var s = Math.min((bits - r) / 26, this.length);
  var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);
  var maskedWords = extended;

  h -= s;
  h = Math.max(0, h);

  // Extended mode, copy masked part
  if (maskedWords) {
    for (var i = 0; i < s; i++)
      maskedWords.words[i] = this.words[i];
    maskedWords.length = s;
  }

  if (s === 0) {
    // No-op, we should not move anything at all
  } else if (this.length > s) {
    this.length -= s;
    for (var i = 0; i < this.length; i++)
      this.words[i] = this.words[i + s];
  } else {
    this.words[0] = 0;
    this.length = 1;
  }

  var carry = 0;
  for (var i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) {
    var word = this.words[i];
    this.words[i] = (carry << (26 - r)) | (word >>> r);
    carry = word & mask;
  }

  // Push carried bits as a mask
  if (maskedWords && carry !== 0)
    maskedWords.words[maskedWords.length++] = carry;

  if (this.length === 0) {
    this.words[0] = 0;
    this.length = 1;
  }

  this.strip();

  return this;
};

// Shift-left
BN.prototype.shln = function shln(bits) {
  return this.clone().ishln(bits);
};

// Shift-right
BN.prototype.shrn = function shrn(bits) {
  return this.clone().ishrn(bits);
};

// Test if n bit is set
BN.prototype.testn = function testn(bit) {
  assert(typeof bit === 'number' && bit >= 0);
  var r = bit % 26;
  var s = (bit - r) / 26;
  var q = 1 << r;

  // Fast case: bit is much higher than all existing words
  if (this.length <= s) {
    return false;
  }

  // Check bit and return
  var w = this.words[s];

  return !!(w & q);
};

// Return only lowers bits of number (in-place)
BN.prototype.imaskn = function imaskn(bits) {
  assert(typeof bits === 'number' && bits >= 0);
  var r = bits % 26;
  var s = (bits - r) / 26;

  assert(!this.sign, 'imaskn works only with positive numbers');

  if (r !== 0)
    s++;
  this.length = Math.min(s, this.length);

  if (r !== 0) {
    var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);
    this.words[this.length - 1] &= mask;
  }

  return this.strip();
};

// Return only lowers bits of number
BN.prototype.maskn = function maskn(bits) {
  return this.clone().imaskn(bits);
};

// Add plain number `num` to `this`
BN.prototype.iaddn = function iaddn(num) {
  assert(typeof num === 'number');
  if (num < 0)
    return this.isubn(-num);

  // Possible sign change
  if (this.sign) {
    if (this.length === 1 && this.words[0] < num) {
      this.words[0] = num - this.words[0];
      this.sign = false;
      return this;
    }

    this.sign = false;
    this.isubn(num);
    this.sign = true;
    return this;
  }

  // Add without checks
  return this._iaddn(num);
};

BN.prototype._iaddn = function _iaddn(num) {
  this.words[0] += num;

  // Carry
  for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) {
    this.words[i] -= 0x4000000;
    if (i === this.length - 1)
      this.words[i + 1] = 1;
    else
      this.words[i + 1]++;
  }
  this.length = Math.max(this.length, i + 1);

  return this;
};

// Subtract plain number `num` from `this`
BN.prototype.isubn = function isubn(num) {
  assert(typeof num === 'number');
  if (num < 0)
    return this.iaddn(-num);

  if (this.sign) {
    this.sign = false;
    this.iaddn(num);
    this.sign = true;
    return this;
  }

  this.words[0] -= num;

  // Carry
  for (var i = 0; i < this.length && this.words[i] < 0; i++) {
    this.words[i] += 0x4000000;
    this.words[i + 1] -= 1;
  }

  return this.strip();
};

BN.prototype.addn = function addn(num) {
  return this.clone().iaddn(num);
};

BN.prototype.subn = function subn(num) {
  return this.clone().isubn(num);
};

BN.prototype.iabs = function iabs() {
  this.sign = false;

  return this;
};

BN.prototype.abs = function abs() {
  return this.clone().iabs();
};

BN.prototype._ishlnsubmul = function _ishlnsubmul(num, mul, shift) {
  // Bigger storage is needed
  var len = num.length + shift;
  var i;
  if (this.words.length < len) {
    var t = new Array(len);
    for (var i = 0; i < this.length; i++)
      t[i] = this.words[i];
    this.words = t;
  } else {
    i = this.length;
  }

  // Zeroify rest
  this.length = Math.max(this.length, len);
  for (; i < this.length; i++)
    this.words[i] = 0;

  var carry = 0;
  for (var i = 0; i < num.length; i++) {
    var w = this.words[i + shift] + carry;
    var right = num.words[i] * mul;
    w -= right & 0x3ffffff;
    carry = (w >> 26) - ((right / 0x4000000) | 0);
    this.words[i + shift] = w & 0x3ffffff;
  }
  for (; i < this.length - shift; i++) {
    var w = this.words[i + shift] + carry;
    carry = w >> 26;
    this.words[i + shift] = w & 0x3ffffff;
  }

  if (carry === 0)
    return this.strip();

  // Subtraction overflow
  assert(carry === -1);
  carry = 0;
  for (var i = 0; i < this.length; i++) {
    var w = -this.words[i] + carry;
    carry = w >> 26;
    this.words[i] = w & 0x3ffffff;
  }
  this.sign = true;

  return this.strip();
};

BN.prototype._wordDiv = function _wordDiv(num, mode) {
  var shift = this.length - num.length;

  var a = this.clone();
  var b = num;

  // Normalize
  var bhi = b.words[b.length - 1];
  var bhiBits = this._countBits(bhi);
  shift = 26 - bhiBits;
  if (shift !== 0) {
    b = b.shln(shift);
    a.ishln(shift);
    bhi = b.words[b.length - 1];
  }

  // Initialize quotient
  var m = a.length - b.length;
  var q;

  if (mode !== 'mod') {
    q = new BN(null);
    q.length = m + 1;
    q.words = new Array(q.length);
    for (var i = 0; i < q.length; i++)
      q.words[i] = 0;
  }

  var diff = a.clone()._ishlnsubmul(b, 1, m);
  if (!diff.sign) {
    a = diff;
    if (q)
      q.words[m] = 1;
  }

  for (var j = m - 1; j >= 0; j--) {
    var qj = a.words[b.length + j] * 0x4000000 + a.words[b.length + j - 1];

    // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max
    // (0x7ffffff)
    qj = Math.min((qj / bhi) | 0, 0x3ffffff);

    a._ishlnsubmul(b, qj, j);
    while (a.sign) {
      qj--;
      a.sign = false;
      a._ishlnsubmul(b, 1, j);
      if (a.cmpn(0) !== 0)
        a.sign = !a.sign;
    }
    if (q)
      q.words[j] = qj;
  }
  if (q)
    q.strip();
  a.strip();

  // Denormalize
  if (mode !== 'div' && shift !== 0)
    a.ishrn(shift);
  return { div: q ? q : null, mod: a };
};

BN.prototype.divmod = function divmod(num, mode) {
  assert(num.cmpn(0) !== 0);

  if (this.sign && !num.sign) {
    var res = this.neg().divmod(num, mode);
    var div;
    var mod;
    if (mode !== 'mod')
      div = res.div.neg();
    if (mode !== 'div')
      mod = res.mod.cmpn(0) === 0 ? res.mod : num.sub(res.mod);
    return {
      div: div,
      mod: mod
    };
  } else if (!this.sign && num.sign) {
    var res = this.divmod(num.neg(), mode);
    var div;
    if (mode !== 'mod')
      div = res.div.neg();
    return { div: div, mod: res.mod };
  } else if (this.sign && num.sign) {
    return this.neg().divmod(num.neg(), mode);
  }

  // Both numbers are positive at this point

  // Strip both numbers to approximate shift value
  if (num.length > this.length || this.cmp(num) < 0)
    return { div: new BN(0), mod: this };

  // Very short reduction
  if (num.length === 1) {
    if (mode === 'div')
      return { div: this.divn(num.words[0]), mod: null };
    else if (mode === 'mod')
      return { div: null, mod: new BN(this.modn(num.words[0])) };
    return {
      div: this.divn(num.words[0]),
      mod: new BN(this.modn(num.words[0]))
    };
  }

  return this._wordDiv(num, mode);
};

// Find `this` / `num`
BN.prototype.div = function div(num) {
  return this.divmod(num, 'div').div;
};

// Find `this` % `num`
BN.prototype.mod = function mod(num) {
  return this.divmod(num, 'mod').mod;
};

// Find Round(`this` / `num`)
BN.prototype.divRound = function divRound(num) {
  var dm = this.divmod(num);

  // Fast case - exact division
  if (dm.mod.cmpn(0) === 0)
    return dm.div;

  var mod = dm.div.sign ? dm.mod.isub(num) : dm.mod;

  var half = num.shrn(1);
  var r2 = num.andln(1);
  var cmp = mod.cmp(half);

  // Round down
  if (cmp < 0 || r2 === 1 && cmp === 0)
    return dm.div;

  // Round up
  return dm.div.sign ? dm.div.isubn(1) : dm.div.iaddn(1);
};

BN.prototype.modn = function modn(num) {
  assert(num <= 0x3ffffff);
  var p = (1 << 26) % num;

  var acc = 0;
  for (var i = this.length - 1; i >= 0; i--)
    acc = (p * acc + this.words[i]) % num;

  return acc;
};

// In-place division by number
BN.prototype.idivn = function idivn(num) {
  assert(num <= 0x3ffffff);

  var carry = 0;
  for (var i = this.length - 1; i >= 0; i--) {
    var w = this.words[i] + carry * 0x4000000;
    this.words[i] = (w / num) | 0;
    carry = w % num;
  }

  return this.strip();
};

BN.prototype.divn = function divn(num) {
  return this.clone().idivn(num);
};

BN.prototype.egcd = function egcd(p) {
  assert(!p.sign);
  assert(p.cmpn(0) !== 0);

  var x = this;
  var y = p.clone();

  if (x.sign)
    x = x.mod(p);
  else
    x = x.clone();

  // A * x + B * y = x
  var A = new BN(1);
  var B = new BN(0);

  // C * x + D * y = y
  var C = new BN(0);
  var D = new BN(1);

  var g = 0;

  while (x.isEven() && y.isEven()) {
    x.ishrn(1);
    y.ishrn(1);
    ++g;
  }

  var yp = y.clone();
  var xp = x.clone();

  while (x.cmpn(0) !== 0) {
    while (x.isEven()) {
      x.ishrn(1);
      if (A.isEven() && B.isEven()) {
        A.ishrn(1);
        B.ishrn(1);
      } else {
        A.iadd(yp).ishrn(1);
        B.isub(xp).ishrn(1);
      }
    }

    while (y.isEven()) {
      y.ishrn(1);
      if (C.isEven() && D.isEven()) {
        C.ishrn(1);
        D.ishrn(1);
      } else {
        C.iadd(yp).ishrn(1);
        D.isub(xp).ishrn(1);
      }
    }

    if (x.cmp(y) >= 0) {
      x.isub(y);
      A.isub(C);
      B.isub(D);
    } else {
      y.isub(x);
      C.isub(A);
      D.isub(B);
    }
  }

  return {
    a: C,
    b: D,
    gcd: y.ishln(g)
  };
};

// This is reduced incarnation of the binary EEA
// above, designated to invert members of the
// _prime_ fields F(p) at a maximal speed
BN.prototype._invmp = function _invmp(p) {
  assert(!p.sign);
  assert(p.cmpn(0) !== 0);

  var a = this;
  var b = p.clone();

  if (a.sign)
    a = a.mod(p);
  else
    a = a.clone();

  var x1 = new BN(1);
  var x2 = new BN(0);

  var delta = b.clone();

  while (a.cmpn(1) > 0 && b.cmpn(1) > 0) {
    while (a.isEven()) {
      a.ishrn(1);
      if (x1.isEven())
        x1.ishrn(1);
      else
        x1.iadd(delta).ishrn(1);
    }
    while (b.isEven()) {
      b.ishrn(1);
      if (x2.isEven())
        x2.ishrn(1);
      else
        x2.iadd(delta).ishrn(1);
    }
    if (a.cmp(b) >= 0) {
      a.isub(b);
      x1.isub(x2);
    } else {
      b.isub(a);
      x2.isub(x1);
    }
  }
  if (a.cmpn(1) === 0)
    return x1;
  else
    return x2;
};

BN.prototype.gcd = function gcd(num) {
  if (this.cmpn(0) === 0)
    return num.clone();
  if (num.cmpn(0) === 0)
    return this.clone();

  var a = this.clone();
  var b = num.clone();
  a.sign = false;
  b.sign = false;

  // Remove common factor of two
  for (var shift = 0; a.isEven() && b.isEven(); shift++) {
    a.ishrn(1);
    b.ishrn(1);
  }

  do {
    while (a.isEven())
      a.ishrn(1);
    while (b.isEven())
      b.ishrn(1);

    var r = a.cmp(b);
    if (r < 0) {
      // Swap `a` and `b` to make `a` always bigger than `b`
      var t = a;
      a = b;
      b = t;
    } else if (r === 0 || b.cmpn(1) === 0) {
      break;
    }

    a.isub(b);
  } while (true);

  return b.ishln(shift);
};

// Invert number in the field F(num)
BN.prototype.invm = function invm(num) {
  return this.egcd(num).a.mod(num);
};

BN.prototype.isEven = function isEven() {
  return (this.words[0] & 1) === 0;
};

BN.prototype.isOdd = function isOdd() {
  return (this.words[0] & 1) === 1;
};

// And first word and num
BN.prototype.andln = function andln(num) {
  return this.words[0] & num;
};

// Increment at the bit position in-line
BN.prototype.bincn = function bincn(bit) {
  assert(typeof bit === 'number');
  var r = bit % 26;
  var s = (bit - r) / 26;
  var q = 1 << r;

  // Fast case: bit is much higher than all existing words
  if (this.length <= s) {
    for (var i = this.length; i < s + 1; i++)
      this.words[i] = 0;
    this.words[s] |= q;
    this.length = s + 1;
    return this;
  }

  // Add bit and propagate, if needed
  var carry = q;
  for (var i = s; carry !== 0 && i < this.length; i++) {
    var w = this.words[i];
    w += carry;
    carry = w >>> 26;
    w &= 0x3ffffff;
    this.words[i] = w;
  }
  if (carry !== 0) {
    this.words[i] = carry;
    this.length++;
  }
  return this;
};

BN.prototype.cmpn = function cmpn(num) {
  var sign = num < 0;
  if (sign)
    num = -num;

  if (this.sign && !sign)
    return -1;
  else if (!this.sign && sign)
    return 1;

  num &= 0x3ffffff;
  this.strip();

  var res;
  if (this.length > 1) {
    res = 1;
  } else {
    var w = this.words[0];
    res = w === num ? 0 : w < num ? -1 : 1;
  }
  if (this.sign)
    res = -res;
  return res;
};

// Compare two numbers and return:
// 1 - if `this` > `num`
// 0 - if `this` == `num`
// -1 - if `this` < `num`
BN.prototype.cmp = function cmp(num) {
  if (this.sign && !num.sign)
    return -1;
  else if (!this.sign && num.sign)
    return 1;

  var res = this.ucmp(num);
  if (this.sign)
    return -res;
  else
    return res;
};

// Unsigned comparison
BN.prototype.ucmp = function ucmp(num) {
  // At this point both numbers have the same sign
  if (this.length > num.length)
    return 1;
  else if (this.length < num.length)
    return -1;

  var res = 0;
  for (var i = this.length - 1; i >= 0; i--) {
    var a = this.words[i];
    var b = num.words[i];

    if (a === b)
      continue;
    if (a < b)
      res = -1;
    else if (a > b)
      res = 1;
    break;
  }
  return res;
};

//
// A reduce context, could be using montgomery or something better, depending
// on the `m` itself.
//
BN.red = function red(num) {
  return new Red(num);
};

BN.prototype.toRed = function toRed(ctx) {
  assert(!this.red, 'Already a number in reduction context');
  assert(!this.sign, 'red works only with positives');
  return ctx.convertTo(this)._forceRed(ctx);
};

BN.prototype.fromRed = function fromRed() {
  assert(this.red, 'fromRed works only with numbers in reduction context');
  return this.red.convertFrom(this);
};

BN.prototype._forceRed = function _forceRed(ctx) {
  this.red = ctx;
  return this;
};

BN.prototype.forceRed = function forceRed(ctx) {
  assert(!this.red, 'Already a number in reduction context');
  return this._forceRed(ctx);
};

BN.prototype.redAdd = function redAdd(num) {
  assert(this.red, 'redAdd works only with red numbers');
  return this.red.add(this, num);
};

BN.prototype.redIAdd = function redIAdd(num) {
  assert(this.red, 'redIAdd works only with red numbers');
  return this.red.iadd(this, num);
};

BN.prototype.redSub = function redSub(num) {
  assert(this.red, 'redSub works only with red numbers');
  return this.red.sub(this, num);
};

BN.prototype.redISub = function redISub(num) {
  assert(this.red, 'redISub works only with red numbers');
  return this.red.isub(this, num);
};

BN.prototype.redShl = function redShl(num) {
  assert(this.red, 'redShl works only with red numbers');
  return this.red.shl(this, num);
};

BN.prototype.redMul = function redMul(num) {
  assert(this.red, 'redMul works only with red numbers');
  this.red._verify2(this, num);
  return this.red.mul(this, num);
};

BN.prototype.redIMul = function redIMul(num) {
  assert(this.red, 'redMul works only with red numbers');
  this.red._verify2(this, num);
  return this.red.imul(this, num);
};

BN.prototype.redSqr = function redSqr() {
  assert(this.red, 'redSqr works only with red numbers');
  this.red._verify1(this);
  return this.red.sqr(this);
};

BN.prototype.redISqr = function redISqr() {
  assert(this.red, 'redISqr works only with red numbers');
  this.red._verify1(this);
  return this.red.isqr(this);
};

// Square root over p
BN.prototype.redSqrt = function redSqrt() {
  assert(this.red, 'redSqrt works only with red numbers');
  this.red._verify1(this);
  return this.red.sqrt(this);
};

BN.prototype.redInvm = function redInvm() {
  assert(this.red, 'redInvm works only with red numbers');
  this.red._verify1(this);
  return this.red.invm(this);
};

// Return negative clone of `this` % `red modulo`
BN.prototype.redNeg = function redNeg() {
  assert(this.red, 'redNeg works only with red numbers');
  this.red._verify1(this);
  return this.red.neg(this);
};

BN.prototype.redPow = function redPow(num) {
  assert(this.red && !num.red, 'redPow(normalNum)');
  this.red._verify1(this);
  return this.red.pow(this, num);
};

// Prime numbers with efficient reduction
var primes = {
  k256: null,
  p224: null,
  p192: null,
  p25519: null
};

// Pseudo-Mersenne prime
function MPrime(name, p) {
  // P = 2 ^ N - K
  this.name = name;
  this.p = new BN(p, 16);
  this.n = this.p.bitLength();
  this.k = new BN(1).ishln(this.n).isub(this.p);

  this.tmp = this._tmp();
}

MPrime.prototype._tmp = function _tmp() {
  var tmp = new BN(null);
  tmp.words = new Array(Math.ceil(this.n / 13));
  return tmp;
};

MPrime.prototype.ireduce = function ireduce(num) {
  // Assumes that `num` is less than `P^2`
  // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P)
  var r = num;
  var rlen;

  do {
    this.split(r, this.tmp);
    r = this.imulK(r);
    r = r.iadd(this.tmp);
    rlen = r.bitLength();
  } while (rlen > this.n);

  var cmp = rlen < this.n ? -1 : r.ucmp(this.p);
  if (cmp === 0) {
    r.words[0] = 0;
    r.length = 1;
  } else if (cmp > 0) {
    r.isub(this.p);
  } else {
    r.strip();
  }

  return r;
};

MPrime.prototype.split = function split(input, out) {
  input.ishrn(this.n, 0, out);
};

MPrime.prototype.imulK = function imulK(num) {
  return num.imul(this.k);
};

function K256() {
  MPrime.call(
    this,
    'k256',
    'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f');
}
inherits(K256, MPrime);

K256.prototype.split = function split(input, output) {
  // 256 = 9 * 26 + 22
  var mask = 0x3fffff;

  var outLen = Math.min(input.length, 9);
  for (var i = 0; i < outLen; i++)
    output.words[i] = input.words[i];
  output.length = outLen;

  if (input.length <= 9) {
    input.words[0] = 0;
    input.length = 1;
    return;
  }

  // Shift by 9 limbs
  var prev = input.words[9];
  output.words[output.length++] = prev & mask;

  for (var i = 10; i < input.length; i++) {
    var next = input.words[i];
    input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22);
    prev = next;
  }
  input.words[i - 10] = prev >>> 22;
  input.length -= 9;
};

K256.prototype.imulK = function imulK(num) {
  // K = 0x1000003d1 = [ 0x40, 0x3d1 ]
  num.words[num.length] = 0;
  num.words[num.length + 1] = 0;
  num.length += 2;

  // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390
  var hi;
  var lo = 0;
  for (var i = 0; i < num.length; i++) {
    var w = num.words[i];
    hi = w * 0x40;
    lo += w * 0x3d1;
    hi += (lo / 0x4000000) | 0;
    lo &= 0x3ffffff;

    num.words[i] = lo;

    lo = hi;
  }

  // Fast length reduction
  if (num.words[num.length - 1] === 0) {
    num.length--;
    if (num.words[num.length - 1] === 0)
      num.length--;
  }
  return num;
};

function P224() {
  MPrime.call(
    this,
    'p224',
    'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001');
}
inherits(P224, MPrime);

function P192() {
  MPrime.call(
    this,
    'p192',
    'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff');
}
inherits(P192, MPrime);

function P25519() {
  // 2 ^ 255 - 19
  MPrime.call(
    this,
    '25519',
    '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed');
}
inherits(P25519, MPrime);

P25519.prototype.imulK = function imulK(num) {
  // K = 0x13
  var carry = 0;
  for (var i = 0; i < num.length; i++) {
    var hi = num.words[i] * 0x13 + carry;
    var lo = hi & 0x3ffffff;
    hi >>>= 26;

    num.words[i] = lo;
    carry = hi;
  }
  if (carry !== 0)
    num.words[num.length++] = carry;
  return num;
};

// Exported mostly for testing purposes, use plain name instead
BN._prime = function prime(name) {
  // Cached version of prime
  if (primes[name])
    return primes[name];

  var prime;
  if (name === 'k256')
    prime = new K256();
  else if (name === 'p224')
    prime = new P224();
  else if (name === 'p192')
    prime = new P192();
  else if (name === 'p25519')
    prime = new P25519();
  else
    throw new Error('Unknown prime ' + name);
  primes[name] = prime;

  return prime;
};

//
// Base reduction engine
//
function Red(m) {
  if (typeof m === 'string') {
    var prime = BN._prime(m);
    this.m = prime.p;
    this.prime = prime;
  } else {
    this.m = m;
    this.prime = null;
  }
}

Red.prototype._verify1 = function _verify1(a) {
  assert(!a.sign, 'red works only with positives');
  assert(a.red, 'red works only with red numbers');
};

Red.prototype._verify2 = function _verify2(a, b) {
  assert(!a.sign && !b.sign, 'red works only with positives');
  assert(a.red && a.red === b.red,
         'red works only with red numbers');
};

Red.prototype.imod = function imod(a) {
  if (this.prime)
    return this.prime.ireduce(a)._forceRed(this);
  return a.mod(this.m)._forceRed(this);
};

Red.prototype.neg = function neg(a) {
  var r = a.clone();
  r.sign = !r.sign;
  return r.iadd(this.m)._forceRed(this);
};

Red.prototype.add = function add(a, b) {
  this._verify2(a, b);

  var res = a.add(b);
  if (res.cmp(this.m) >= 0)
    res.isub(this.m);
  return res._forceRed(this);
};

Red.prototype.iadd = function iadd(a, b) {
  this._verify2(a, b);

  var res = a.iadd(b);
  if (res.cmp(this.m) >= 0)
    res.isub(this.m);
  return res;
};

Red.prototype.sub = function sub(a, b) {
  this._verify2(a, b);

  var res = a.sub(b);
  if (res.cmpn(0) < 0)
    res.iadd(this.m);
  return res._forceRed(this);
};

Red.prototype.isub = function isub(a, b) {
  this._verify2(a, b);

  var res = a.isub(b);
  if (res.cmpn(0) < 0)
    res.iadd(this.m);
  return res;
};

Red.prototype.shl = function shl(a, num) {
  this._verify1(a);
  return this.imod(a.shln(num));
};

Red.prototype.imul = function imul(a, b) {
  this._verify2(a, b);
  return this.imod(a.imul(b));
};

Red.prototype.mul = function mul(a, b) {
  this._verify2(a, b);
  return this.imod(a.mul(b));
};

Red.prototype.isqr = function isqr(a) {
  return this.imul(a, a);
};

Red.prototype.sqr = function sqr(a) {
  return this.mul(a, a);
};

Red.prototype.sqrt = function sqrt(a) {
  if (a.cmpn(0) === 0)
    return a.clone();

  var mod3 = this.m.andln(3);
  assert(mod3 % 2 === 1);

  // Fast case
  if (mod3 === 3) {
    var pow = this.m.add(new BN(1)).ishrn(2);
    var r = this.pow(a, pow);
    return r;
  }

  // Tonelli-Shanks algorithm (Totally unoptimized and slow)
  //
  // Find Q and S, that Q * 2 ^ S = (P - 1)
  var q = this.m.subn(1);
  var s = 0;
  while (q.cmpn(0) !== 0 && q.andln(1) === 0) {
    s++;
    q.ishrn(1);
  }
  assert(q.cmpn(0) !== 0);

  var one = new BN(1).toRed(this);
  var nOne = one.redNeg();

  // Find quadratic non-residue
  // NOTE: Max is such because of generalized Riemann hypothesis.
  var lpow = this.m.subn(1).ishrn(1);
  var z = this.m.bitLength();
  z = new BN(2 * z * z).toRed(this);
  while (this.pow(z, lpow).cmp(nOne) !== 0)
    z.redIAdd(nOne);

  var c = this.pow(z, q);
  var r = this.pow(a, q.addn(1).ishrn(1));
  var t = this.pow(a, q);
  var m = s;
  while (t.cmp(one) !== 0) {
    var tmp = t;
    for (var i = 0; tmp.cmp(one) !== 0; i++)
      tmp = tmp.redSqr();
    assert(i < m);
    var b = this.pow(c, new BN(1).ishln(m - i - 1));

    r = r.redMul(b);
    c = b.redSqr();
    t = t.redMul(c);
    m = i;
  }

  return r;
};

Red.prototype.invm = function invm(a) {
  var inv = a._invmp(this.m);
  if (inv.sign) {
    inv.sign = false;
    return this.imod(inv).redNeg();
  } else {
    return this.imod(inv);
  }
};

Red.prototype.pow = function pow(a, num) {
  var w = [];

  if (num.cmpn(0) === 0)
    return new BN(1);

  var q = num.clone();

  while (q.cmpn(0) !== 0) {
    w.push(q.andln(1));
    q.ishrn(1);
  }

  // Skip leading zeroes
  var res = a;
  for (var i = 0; i < w.length; i++, res = this.sqr(res))
    if (w[i] !== 0)
      break;

  if (++i < w.length) {
    for (var q = this.sqr(res); i < w.length; i++, q = this.sqr(q)) {
      if (w[i] === 0)
        continue;
      res = this.mul(res, q);
    }
  }

  return res;
};

Red.prototype.convertTo = function convertTo(num) {
  return num.clone();
};

Red.prototype.convertFrom = function convertFrom(num) {
  var res = num.clone();
  res.red = null;
  return res;
};

//
// Montgomery method engine
//

BN.mont = function mont(num) {
  return new Mont(num);
};

function Mont(m) {
  Red.call(this, m);

  this.shift = this.m.bitLength();
  if (this.shift % 26 !== 0)
    this.shift += 26 - (this.shift % 26);
  this.r = new BN(1).ishln(this.shift);
  this.r2 = this.imod(this.r.sqr());
  this.rinv = this.r._invmp(this.m);

  this.minv = this.rinv.mul(this.r).isubn(1).div(this.m);
  this.minv.sign = true;
  this.minv = this.minv.mod(this.r);
}
inherits(Mont, Red);

Mont.prototype.convertTo = function convertTo(num) {
  return this.imod(num.shln(this.shift));
};

Mont.prototype.convertFrom = function convertFrom(num) {
  var r = this.imod(num.mul(this.rinv));
  r.red = null;
  return r;
};

Mont.prototype.imul = function imul(a, b) {
  if (a.cmpn(0) === 0 || b.cmpn(0) === 0) {
    a.words[0] = 0;
    a.length = 1;
    return a;
  }

  var t = a.imul(b);
  var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);
  var u = t.isub(c).ishrn(this.shift);
  var res = u;
  if (u.cmp(this.m) >= 0)
    res = u.isub(this.m);
  else if (u.cmpn(0) < 0)
    res = u.iadd(this.m);

  return res._forceRed(this);
};

Mont.prototype.mul = function mul(a, b) {
  if (a.cmpn(0) === 0 || b.cmpn(0) === 0)
    return new BN(0)._forceRed(this);

  var t = a.mul(b);
  var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);
  var u = t.isub(c).ishrn(this.shift);
  var res = u;
  if (u.cmp(this.m) >= 0)
    res = u.isub(this.m);
  else if (u.cmpn(0) < 0)
    res = u.iadd(this.m);

  return res._forceRed(this);
};

Mont.prototype.invm = function invm(a) {
  // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R
  var res = this.imod(a._invmp(this.m).mul(this.r2));
  return res._forceRed(this);
};

})(typeof module === 'undefined' || module, this);

},{}],66:[function(require,module,exports){
var r;

module.exports = function rand(len) {
  if (!r)
    r = new Rand(null);

  return r.generate(len);
};

function Rand(rand) {
  this.rand = rand;
}
module.exports.Rand = Rand;

Rand.prototype.generate = function generate(len) {
  return this._rand(len);
};

if (typeof window === 'object') {
  if (window.crypto && window.crypto.getRandomValues) {
    // Modern browsers
    Rand.prototype._rand = function _rand(n) {
      var arr = new Uint8Array(n);
      window.crypto.getRandomValues(arr);
      return arr;
    };
  } else if (window.msCrypto && window.msCrypto.getRandomValues) {
    // IE
    Rand.prototype._rand = function _rand(n) {
      var arr = new Uint8Array(n);
      window.msCrypto.getRandomValues(arr);
      return arr;
    };
  } else {
    // Old junk
    Rand.prototype._rand = function() {
      throw new Error('Not implemented yet');
    };
  }
} else {
  // Node.js or Web worker
  try {
    var crypto = require('crypto');

    Rand.prototype._rand = function _rand(n) {
      return crypto.randomBytes(n);
    };
  } catch (e) {
    // Emulate crypto API using randy
    Rand.prototype._rand = function _rand(n) {
      var res = new Uint8Array(n);
      for (var i = 0; i < res.length; i++)
        res[i] = this.rand.getByte();
      return res;
    };
  }
}

},{"crypto":67}],67:[function(require,module,exports){

},{}],68:[function(require,module,exports){
(function (Buffer){
// based on the aes implimentation in triple sec
// https://github.com/keybase/triplesec

// which is in turn based on the one from crypto-js
// https://code.google.com/p/crypto-js/

var uint_max = Math.pow(2, 32)
function fixup_uint32 (x) {
  var ret, x_pos
  ret = x > uint_max || x < 0 ? (x_pos = Math.abs(x) % uint_max, x < 0 ? uint_max - x_pos : x_pos) : x
  return ret
}
function scrub_vec (v) {
  for (var i = 0; i < v.length; v++) {
    v[i] = 0
  }
  return false
}

function Global () {
  this.SBOX = []
  this.INV_SBOX = []
  this.SUB_MIX = [[], [], [], []]
  this.INV_SUB_MIX = [[], [], [], []]
  this.init()
  this.RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36]
}

Global.prototype.init = function () {
  var d, i, sx, t, x, x2, x4, x8, xi, _i
  d = (function () {
    var _i, _results
    _results = []
    for (i = _i = 0; _i < 256; i = ++_i) {
      if (i < 128) {
        _results.push(i << 1)
      } else {
        _results.push((i << 1) ^ 0x11b)
      }
    }
    return _results
  })()
  x = 0
  xi = 0
  for (i = _i = 0; _i < 256; i = ++_i) {
    sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4)
    sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63
    this.SBOX[x] = sx
    this.INV_SBOX[sx] = x
    x2 = d[x]
    x4 = d[x2]
    x8 = d[x4]
    t = (d[sx] * 0x101) ^ (sx * 0x1010100)
    this.SUB_MIX[0][x] = (t << 24) | (t >>> 8)
    this.SUB_MIX[1][x] = (t << 16) | (t >>> 16)
    this.SUB_MIX[2][x] = (t << 8) | (t >>> 24)
    this.SUB_MIX[3][x] = t
    t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100)
    this.INV_SUB_MIX[0][sx] = (t << 24) | (t >>> 8)
    this.INV_SUB_MIX[1][sx] = (t << 16) | (t >>> 16)
    this.INV_SUB_MIX[2][sx] = (t << 8) | (t >>> 24)
    this.INV_SUB_MIX[3][sx] = t
    if (x === 0) {
      x = xi = 1
    } else {
      x = x2 ^ d[d[d[x8 ^ x2]]]
      xi ^= d[d[xi]]
    }
  }
  return true
}

var G = new Global()

AES.blockSize = 4 * 4

AES.prototype.blockSize = AES.blockSize

AES.keySize = 256 / 8

AES.prototype.keySize = AES.keySize

function bufferToArray (buf) {
  var len = buf.length / 4
  var out = new Array(len)
  var i = -1
  while (++i < len) {
    out[i] = buf.readUInt32BE(i * 4)
  }
  return out
}
function AES (key) {
  this._key = bufferToArray(key)
  this._doReset()
}

AES.prototype._doReset = function () {
  var invKsRow, keySize, keyWords, ksRow, ksRows, t
  keyWords = this._key
  keySize = keyWords.length
  this._nRounds = keySize + 6
  ksRows = (this._nRounds + 1) * 4
  this._keySchedule = []
  for (ksRow = 0; ksRow < ksRows; ksRow++) {
    this._keySchedule[ksRow] = ksRow < keySize ? keyWords[ksRow] : (t = this._keySchedule[ksRow - 1], (ksRow % keySize) === 0 ? (t = (t << 8) | (t >>> 24), t = (G.SBOX[t >>> 24] << 24) | (G.SBOX[(t >>> 16) & 0xff] << 16) | (G.SBOX[(t >>> 8) & 0xff] << 8) | G.SBOX[t & 0xff], t ^= G.RCON[(ksRow / keySize) | 0] << 24) : keySize > 6 && ksRow % keySize === 4 ? t = (G.SBOX[t >>> 24] << 24) | (G.SBOX[(t >>> 16) & 0xff] << 16) | (G.SBOX[(t >>> 8) & 0xff] << 8) | G.SBOX[t & 0xff] : void 0, this._keySchedule[ksRow - keySize] ^ t)
  }
  this._invKeySchedule = []
  for (invKsRow = 0; invKsRow < ksRows; invKsRow++) {
    ksRow = ksRows - invKsRow
    t = this._keySchedule[ksRow - (invKsRow % 4 ? 0 : 4)]
    this._invKeySchedule[invKsRow] = invKsRow < 4 || ksRow <= 4 ? t : G.INV_SUB_MIX[0][G.SBOX[t >>> 24]] ^ G.INV_SUB_MIX[1][G.SBOX[(t >>> 16) & 0xff]] ^ G.INV_SUB_MIX[2][G.SBOX[(t >>> 8) & 0xff]] ^ G.INV_SUB_MIX[3][G.SBOX[t & 0xff]]
  }
  return true
}

AES.prototype.encryptBlock = function (M) {
  M = bufferToArray(new Buffer(M))
  var out = this._doCryptBlock(M, this._keySchedule, G.SUB_MIX, G.SBOX)
  var buf = new Buffer(16)
  buf.writeUInt32BE(out[0], 0)
  buf.writeUInt32BE(out[1], 4)
  buf.writeUInt32BE(out[2], 8)
  buf.writeUInt32BE(out[3], 12)
  return buf
}

AES.prototype.decryptBlock = function (M) {
  M = bufferToArray(new Buffer(M))
  var temp = [M[3], M[1]]
  M[1] = temp[0]
  M[3] = temp[1]
  var out = this._doCryptBlock(M, this._invKeySchedule, G.INV_SUB_MIX, G.INV_SBOX)
  var buf = new Buffer(16)
  buf.writeUInt32BE(out[0], 0)
  buf.writeUInt32BE(out[3], 4)
  buf.writeUInt32BE(out[2], 8)
  buf.writeUInt32BE(out[1], 12)
  return buf
}

AES.prototype.scrub = function () {
  scrub_vec(this._keySchedule)
  scrub_vec(this._invKeySchedule)
  scrub_vec(this._key)
}

AES.prototype._doCryptBlock = function (M, keySchedule, SUB_MIX, SBOX) {
  var ksRow, s0, s1, s2, s3, t0, t1, t2, t3

  s0 = M[0] ^ keySchedule[0]
  s1 = M[1] ^ keySchedule[1]
  s2 = M[2] ^ keySchedule[2]
  s3 = M[3] ^ keySchedule[3]
  ksRow = 4
  for (var round = 1; round < this._nRounds; round++) {
    t0 = SUB_MIX[0][s0 >>> 24] ^ SUB_MIX[1][(s1 >>> 16) & 0xff] ^ SUB_MIX[2][(s2 >>> 8) & 0xff] ^ SUB_MIX[3][s3 & 0xff] ^ keySchedule[ksRow++]
    t1 = SUB_MIX[0][s1 >>> 24] ^ SUB_MIX[1][(s2 >>> 16) & 0xff] ^ SUB_MIX[2][(s3 >>> 8) & 0xff] ^ SUB_MIX[3][s0 & 0xff] ^ keySchedule[ksRow++]
    t2 = SUB_MIX[0][s2 >>> 24] ^ SUB_MIX[1][(s3 >>> 16) & 0xff] ^ SUB_MIX[2][(s0 >>> 8) & 0xff] ^ SUB_MIX[3][s1 & 0xff] ^ keySchedule[ksRow++]
    t3 = SUB_MIX[0][s3 >>> 24] ^ SUB_MIX[1][(s0 >>> 16) & 0xff] ^ SUB_MIX[2][(s1 >>> 8) & 0xff] ^ SUB_MIX[3][s2 & 0xff] ^ keySchedule[ksRow++]
    s0 = t0
    s1 = t1
    s2 = t2
    s3 = t3
  }
  t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++]
  t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++]
  t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++]
  t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++]
  return [
    fixup_uint32(t0),
    fixup_uint32(t1),
    fixup_uint32(t2),
    fixup_uint32(t3)
  ]
}

exports.AES = AES

}).call(this,require("buffer").Buffer)
},{"buffer":95}],69:[function(require,module,exports){
(function (Buffer){
var aes = require('./aes')
var Transform = require('cipher-base')
var inherits = require('inherits')
var GHASH = require('./ghash')
var xor = require('buffer-xor')
inherits(StreamCipher, Transform)
module.exports = StreamCipher

function StreamCipher (mode, key, iv, decrypt) {
  if (!(this instanceof StreamCipher)) {
    return new StreamCipher(mode, key, iv)
  }
  Transform.call(this)
  this._finID = Buffer.concat([iv, new Buffer([0, 0, 0, 1])])
  iv = Buffer.concat([iv, new Buffer([0, 0, 0, 2])])
  this._cipher = new aes.AES(key)
  this._prev = new Buffer(iv.length)
  this._cache = new Buffer('')
  this._secCache = new Buffer('')
  this._decrypt = decrypt
  this._alen = 0
  this._len = 0
  iv.copy(this._prev)
  this._mode = mode
  var h = new Buffer(4)
  h.fill(0)
  this._ghash = new GHASH(this._cipher.encryptBlock(h))
  this._authTag = null
  this._called = false
}
StreamCipher.prototype._update = function (chunk) {
  if (!this._called && this._alen) {
    var rump = 16 - (this._alen % 16)
    if (rump < 16) {
      rump = new Buffer(rump)
      rump.fill(0)
      this._ghash.update(rump)
    }
  }
  this._called = true
  var out = this._mode.encrypt(this, chunk)
  if (this._decrypt) {
    this._ghash.update(chunk)
  } else {
    this._ghash.update(out)
  }
  this._len += chunk.length
  return out
}
StreamCipher.prototype._final = function () {
  if (this._decrypt && !this._authTag) {
    throw new Error('Unsupported state or unable to authenticate data')
  }
  var tag = xor(this._ghash.final(this._alen * 8, this._len * 8), this._cipher.encryptBlock(this._finID))
  if (this._decrypt) {
    if (xorTest(tag, this._authTag)) {
      throw new Error('Unsupported state or unable to authenticate data')
    }
  } else {
    this._authTag = tag
  }
  this._cipher.scrub()
}
StreamCipher.prototype.getAuthTag = function getAuthTag () {
  if (!this._decrypt && Buffer.isBuffer(this._authTag)) {
    return this._authTag
  } else {
    throw new Error('Attempting to get auth tag in unsupported state')
  }
}
StreamCipher.prototype.setAuthTag = function setAuthTag (tag) {
  if (this._decrypt) {
    this._authTag = tag
  } else {
    throw new Error('Attempting to set auth tag in unsupported state')
  }
}
StreamCipher.prototype.setAAD = function setAAD (buf) {
  if (!this._called) {
    this._ghash.update(buf)
    this._alen += buf.length
  } else {
    throw new Error('Attempting to set AAD in unsupported state')
  }
}
function xorTest (a, b) {
  var out = 0
  if (a.length !== b.length) {
    out++
  }
  var len = Math.min(a.length, b.length)
  var i = -1
  while (++i < len) {
    out += (a[i] ^ b[i])
  }
  return out
}

}).call(this,require("buffer").Buffer)
},{"./aes":68,"./ghash":73,"buffer":95,"buffer-xor":94,"cipher-base":96,"inherits":139}],70:[function(require,module,exports){
var ciphers = require('./encrypter')
exports.createCipher = exports.Cipher = ciphers.createCipher
exports.createCipheriv = exports.Cipheriv = ciphers.createCipheriv
var deciphers = require('./decrypter')
exports.createDecipher = exports.Decipher = deciphers.createDecipher
exports.createDecipheriv = exports.Decipheriv = deciphers.createDecipheriv
var modes = require('./modes')
function getCiphers () {
  return Object.keys(modes)
}
exports.listCiphers = exports.getCiphers = getCiphers

},{"./decrypter":71,"./encrypter":72,"./modes":74}],71:[function(require,module,exports){
(function (Buffer){
var aes = require('./aes')
var Transform = require('cipher-base')
var inherits = require('inherits')
var modes = require('./modes')
var StreamCipher = require('./streamCipher')
var AuthCipher = require('./authCipher')
var ebtk = require('evp_bytestokey')

inherits(Decipher, Transform)
function Decipher (mode, key, iv) {
  if (!(this instanceof Decipher)) {
    return new Decipher(mode, key, iv)
  }
  Transform.call(this)
  this._cache = new Splitter()
  this._last = void 0
  this._cipher = new aes.AES(key)
  this._prev = new Buffer(iv.length)
  iv.copy(this._prev)
  this._mode = mode
  this._autopadding = true
}
Decipher.prototype._update = function (data) {
  this._cache.add(data)
  var chunk
  var thing
  var out = []
  while ((chunk = this._cache.get(this._autopadding))) {
    thing = this._mode.decrypt(this, chunk)
    out.push(thing)
  }
  return Buffer.concat(out)
}
Decipher.prototype._final = function () {
  var chunk = this._cache.flush()
  if (this._autopadding) {
    return unpad(this._mode.decrypt(this, chunk))
  } else if (chunk) {
    throw new Error('data not multiple of block length')
  }
}
Decipher.prototype.setAutoPadding = function (setTo) {
  this._autopadding = !!setTo
  return this
}
function Splitter () {
  if (!(this instanceof Splitter)) {
    return new Splitter()
  }
  this.cache = new Buffer('')
}
Splitter.prototype.add = function (data) {
  this.cache = Buffer.concat([this.cache, data])
}

Splitter.prototype.get = function (autoPadding) {
  var out
  if (autoPadding) {
    if (this.cache.length > 16) {
      out = this.cache.slice(0, 16)
      this.cache = this.cache.slice(16)
      return out
    }
  } else {
    if (this.cache.length >= 16) {
      out = this.cache.slice(0, 16)
      this.cache = this.cache.slice(16)
      return out
    }
  }
  return null
}
Splitter.prototype.flush = function () {
  if (this.cache.length) {
    return this.cache
  }
}
function unpad (last) {
  var padded = last[15]
  var i = -1
  while (++i < padded) {
    if (last[(i + (16 - padded))] !== padded) {
      throw new Error('unable to decrypt data')
    }
  }
  if (padded === 16) {
    return
  }
  return last.slice(0, 16 - padded)
}

var modelist = {
  ECB: require('./modes/ecb'),
  CBC: require('./modes/cbc'),
  CFB: require('./modes/cfb'),
  CFB8: require('./modes/cfb8'),
  CFB1: require('./modes/cfb1'),
  OFB: require('./modes/ofb'),
  CTR: require('./modes/ctr'),
  GCM: require('./modes/ctr')
}

function createDecipheriv (suite, password, iv) {
  var config = modes[suite.toLowerCase()]
  if (!config) {
    throw new TypeError('invalid suite type')
  }
  if (typeof iv === 'string') {
    iv = new Buffer(iv)
  }
  if (typeof password === 'string') {
    password = new Buffer(password)
  }
  if (password.length !== config.key / 8) {
    throw new TypeError('invalid key length ' + password.length)
  }
  if (iv.length !== config.iv) {
    throw new TypeError('invalid iv length ' + iv.length)
  }
  if (config.type === 'stream') {
    return new StreamCipher(modelist[config.mode], password, iv, true)
  } else if (config.type === 'auth') {
    return new AuthCipher(modelist[config.mode], password, iv, true)
  }
  return new Decipher(modelist[config.mode], password, iv)
}

function createDecipher (suite, password) {
  var config = modes[suite.toLowerCase()]
  if (!config) {
    throw new TypeError('invalid suite type')
  }
  var keys = ebtk(password, false, config.key, config.iv)
  return createDecipheriv(suite, keys.key, keys.iv)
}
exports.createDecipher = createDecipher
exports.createDecipheriv = createDecipheriv

}).call(this,require("buffer").Buffer)
},{"./aes":68,"./authCipher":69,"./modes":74,"./modes/cbc":75,"./modes/cfb":76,"./modes/cfb1":77,"./modes/cfb8":78,"./modes/ctr":79,"./modes/ecb":80,"./modes/ofb":81,"./streamCipher":82,"buffer":95,"cipher-base":96,"evp_bytestokey":136,"inherits":139}],72:[function(require,module,exports){
(function (Buffer){
var aes = require('./aes')
var Transform = require('cipher-base')
var inherits = require('inherits')
var modes = require('./modes')
var ebtk = require('evp_bytestokey')
var StreamCipher = require('./streamCipher')
var AuthCipher = require('./authCipher')
inherits(Cipher, Transform)
function Cipher (mode, key, iv) {
  if (!(this instanceof Cipher)) {
    return new Cipher(mode, key, iv)
  }
  Transform.call(this)
  this._cache = new Splitter()
  this._cipher = new aes.AES(key)
  this._prev = new Buffer(iv.length)
  iv.copy(this._prev)
  this._mode = mode
  this._autopadding = true
}
Cipher.prototype._update = function (data) {
  this._cache.add(data)
  var chunk
  var thing
  var out = []
  while ((chunk = this._cache.get())) {
    thing = this._mode.encrypt(this, chunk)
    out.push(thing)
  }
  return Buffer.concat(out)
}
Cipher.prototype._final = function () {
  var chunk = this._cache.flush()
  if (this._autopadding) {
    chunk = this._mode.encrypt(this, chunk)
    this._cipher.scrub()
    return chunk
  } else if (chunk.toString('hex') !== '10101010101010101010101010101010') {
    this._cipher.scrub()
    throw new Error('data not multiple of block length')
  }
}
Cipher.prototype.setAutoPadding = function (setTo) {
  this._autopadding = !!setTo
  return this
}

function Splitter () {
  if (!(this instanceof Splitter)) {
    return new Splitter()
  }
  this.cache = new Buffer('')
}
Splitter.prototype.add = function (data) {
  this.cache = Buffer.concat([this.cache, data])
}

Splitter.prototype.get = function () {
  if (this.cache.length > 15) {
    var out = this.cache.slice(0, 16)
    this.cache = this.cache.slice(16)
    return out
  }
  return null
}
Splitter.prototype.flush = function () {
  var len = 16 - this.cache.length
  var padBuff = new Buffer(len)

  var i = -1
  while (++i < len) {
    padBuff.writeUInt8(len, i)
  }
  var out = Buffer.concat([this.cache, padBuff])
  return out
}
var modelist = {
  ECB: require('./modes/ecb'),
  CBC: require('./modes/cbc'),
  CFB: require('./modes/cfb'),
  CFB8: require('./modes/cfb8'),
  CFB1: require('./modes/cfb1'),
  OFB: require('./modes/ofb'),
  CTR: require('./modes/ctr'),
  GCM: require('./modes/ctr')
}

function createCipheriv (suite, password, iv) {
  var config = modes[suite.toLowerCase()]
  if (!config) {
    throw new TypeError('invalid suite type')
  }
  if (typeof iv === 'string') {
    iv = new Buffer(iv)
  }
  if (typeof password === 'string') {
    password = new Buffer(password)
  }
  if (password.length !== config.key / 8) {
    throw new TypeError('invalid key length ' + password.length)
  }
  if (iv.length !== config.iv) {
    throw new TypeError('invalid iv length ' + iv.length)
  }
  if (config.type === 'stream') {
    return new StreamCipher(modelist[config.mode], password, iv)
  } else if (config.type === 'auth') {
    return new AuthCipher(modelist[config.mode], password, iv)
  }
  return new Cipher(modelist[config.mode], password, iv)
}
function createCipher (suite, password) {
  var config = modes[suite.toLowerCase()]
  if (!config) {
    throw new TypeError('invalid suite type')
  }
  var keys = ebtk(password, false, config.key, config.iv)
  return createCipheriv(suite, keys.key, keys.iv)
}

exports.createCipheriv = createCipheriv
exports.createCipher = createCipher

}).call(this,require("buffer").Buffer)
},{"./aes":68,"./authCipher":69,"./modes":74,"./modes/cbc":75,"./modes/cfb":76,"./modes/cfb1":77,"./modes/cfb8":78,"./modes/ctr":79,"./modes/ecb":80,"./modes/ofb":81,"./streamCipher":82,"buffer":95,"cipher-base":96,"evp_bytestokey":136,"inherits":139}],73:[function(require,module,exports){
(function (Buffer){
var zeros = new Buffer(16)
zeros.fill(0)
module.exports = GHASH
function GHASH (key) {
  this.h = key
  this.state = new Buffer(16)
  this.state.fill(0)
  this.cache = new Buffer('')
}
// from http://bitwiseshiftleft.github.io/sjcl/doc/symbols/src/core_gcm.js.html
// by Juho Vähä-Herttua
GHASH.prototype.ghash = function (block) {
  var i = -1
  while (++i < block.length) {
    this.state[i] ^= block[i]
  }
  this._multiply()
}

GHASH.prototype._multiply = function () {
  var Vi = toArray(this.h)
  var Zi = [0, 0, 0, 0]
  var j, xi, lsb_Vi
  var i = -1
  while (++i < 128) {
    xi = (this.state[~~(i / 8)] & (1 << (7 - i % 8))) !== 0
    if (xi) {
      // Z_i+1 = Z_i ^ V_i
      Zi = xor(Zi, Vi)
    }

    // Store the value of LSB(V_i)
    lsb_Vi = (Vi[3] & 1) !== 0

    // V_i+1 = V_i >> 1
    for (j = 3; j > 0; j--) {
      Vi[j] = (Vi[j] >>> 1) | ((Vi[j - 1] & 1) << 31)
    }
    Vi[0] = Vi[0] >>> 1

    // If LSB(V_i) is 1, V_i+1 = (V_i >> 1) ^ R
    if (lsb_Vi) {
      Vi[0] = Vi[0] ^ (0xe1 << 24)
    }
  }
  this.state = fromArray(Zi)
}
GHASH.prototype.update = function (buf) {
  this.cache = Buffer.concat([this.cache, buf])
  var chunk
  while (this.cache.length >= 16) {
    chunk = this.cache.slice(0, 16)
    this.cache = this.cache.slice(16)
    this.ghash(chunk)
  }
}
GHASH.prototype.final = function (abl, bl) {
  if (this.cache.length) {
    this.ghash(Buffer.concat([this.cache, zeros], 16))
  }
  this.ghash(fromArray([
    0, abl,
    0, bl
  ]))
  return this.state
}

function toArray (buf) {
  return [
    buf.readUInt32BE(0),
    buf.readUInt32BE(4),
    buf.readUInt32BE(8),
    buf.readUInt32BE(12)
  ]
}
function fromArray (out) {
  out = out.map(fixup_uint32)
  var buf = new Buffer(16)
  buf.writeUInt32BE(out[0], 0)
  buf.writeUInt32BE(out[1], 4)
  buf.writeUInt32BE(out[2], 8)
  buf.writeUInt32BE(out[3], 12)
  return buf
}
var uint_max = Math.pow(2, 32)
function fixup_uint32 (x) {
  var ret, x_pos
  ret = x > uint_max || x < 0 ? (x_pos = Math.abs(x) % uint_max, x < 0 ? uint_max - x_pos : x_pos) : x
  return ret
}
function xor (a, b) {
  return [
    a[0] ^ b[0],
    a[1] ^ b[1],
    a[2] ^ b[2],
    a[3] ^ b[3]
  ]
}

}).call(this,require("buffer").Buffer)
},{"buffer":95}],74:[function(require,module,exports){
exports['aes-128-ecb'] = {
  cipher: 'AES',
  key: 128,
  iv: 0,
  mode: 'ECB',
  type: 'block'
}
exports['aes-192-ecb'] = {
  cipher: 'AES',
  key: 192,
  iv: 0,
  mode: 'ECB',
  type: 'block'
}
exports['aes-256-ecb'] = {
  cipher: 'AES',
  key: 256,
  iv: 0,
  mode: 'ECB',
  type: 'block'
}
exports['aes-128-cbc'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'CBC',
  type: 'block'
}
exports['aes-192-cbc'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'CBC',
  type: 'block'
}
exports['aes-256-cbc'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'CBC',
  type: 'block'
}
exports['aes128'] = exports['aes-128-cbc']
exports['aes192'] = exports['aes-192-cbc']
exports['aes256'] = exports['aes-256-cbc']
exports['aes-128-cfb'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'CFB',
  type: 'stream'
}
exports['aes-192-cfb'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'CFB',
  type: 'stream'
}
exports['aes-256-cfb'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'CFB',
  type: 'stream'
}
exports['aes-128-cfb8'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'CFB8',
  type: 'stream'
}
exports['aes-192-cfb8'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'CFB8',
  type: 'stream'
}
exports['aes-256-cfb8'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'CFB8',
  type: 'stream'
}
exports['aes-128-cfb1'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'CFB1',
  type: 'stream'
}
exports['aes-192-cfb1'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'CFB1',
  type: 'stream'
}
exports['aes-256-cfb1'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'CFB1',
  type: 'stream'
}
exports['aes-128-ofb'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'OFB',
  type: 'stream'
}
exports['aes-192-ofb'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'OFB',
  type: 'stream'
}
exports['aes-256-ofb'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'OFB',
  type: 'stream'
}
exports['aes-128-ctr'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'CTR',
  type: 'stream'
}
exports['aes-192-ctr'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'CTR',
  type: 'stream'
}
exports['aes-256-ctr'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'CTR',
  type: 'stream'
}
exports['aes-128-gcm'] = {
  cipher: 'AES',
  key: 128,
  iv: 12,
  mode: 'GCM',
  type: 'auth'
}
exports['aes-192-gcm'] = {
  cipher: 'AES',
  key: 192,
  iv: 12,
  mode: 'GCM',
  type: 'auth'
}
exports['aes-256-gcm'] = {
  cipher: 'AES',
  key: 256,
  iv: 12,
  mode: 'GCM',
  type: 'auth'
}

},{}],75:[function(require,module,exports){
var xor = require('buffer-xor')

exports.encrypt = function (self, block) {
  var data = xor(block, self._prev)

  self._prev = self._cipher.encryptBlock(data)
  return self._prev
}

exports.decrypt = function (self, block) {
  var pad = self._prev

  self._prev = block
  var out = self._cipher.decryptBlock(block)

  return xor(out, pad)
}

},{"buffer-xor":94}],76:[function(require,module,exports){
(function (Buffer){
var xor = require('buffer-xor')

exports.encrypt = function (self, data, decrypt) {
  var out = new Buffer('')
  var len

  while (data.length) {
    if (self._cache.length === 0) {
      self._cache = self._cipher.encryptBlock(self._prev)
      self._prev = new Buffer('')
    }

    if (self._cache.length <= data.length) {
      len = self._cache.length
      out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)])
      data = data.slice(len)
    } else {
      out = Buffer.concat([out, encryptStart(self, data, decrypt)])
      break
    }
  }

  return out
}
function encryptStart (self, data, decrypt) {
  var len = data.length
  var out = xor(data, self._cache)
  self._cache = self._cache.slice(len)
  self._prev = Buffer.concat([self._prev, decrypt ? data : out])
  return out
}

}).call(this,require("buffer").Buffer)
},{"buffer":95,"buffer-xor":94}],77:[function(require,module,exports){
(function (Buffer){
function encryptByte (self, byteParam, decrypt) {
  var pad
  var i = -1
  var len = 8
  var out = 0
  var bit, value
  while (++i < len) {
    pad = self._cipher.encryptBlock(self._prev)
    bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0
    value = pad[0] ^ bit
    out += ((value & 0x80) >> (i % 8))
    self._prev = shiftIn(self._prev, decrypt ? bit : value)
  }
  return out
}
exports.encrypt = function (self, chunk, decrypt) {
  var len = chunk.length
  var out = new Buffer(len)
  var i = -1
  while (++i < len) {
    out[i] = encryptByte(self, chunk[i], decrypt)
  }
  return out
}
function shiftIn (buffer, value) {
  var len = buffer.length
  var i = -1
  var out = new Buffer(buffer.length)
  buffer = Buffer.concat([buffer, new Buffer([value])])
  while (++i < len) {
    out[i] = buffer[i] << 1 | buffer[i + 1] >> (7)
  }
  return out
}

}).call(this,require("buffer").Buffer)
},{"buffer":95}],78:[function(require,module,exports){
(function (Buffer){
function encryptByte (self, byteParam, decrypt) {
  var pad = self._cipher.encryptBlock(self._prev)
  var out = pad[0] ^ byteParam
  self._prev = Buffer.concat([self._prev.slice(1), new Buffer([decrypt ? byteParam : out])])
  return out
}
exports.encrypt = function (self, chunk, decrypt) {
  var len = chunk.length
  var out = new Buffer(len)
  var i = -1
  while (++i < len) {
    out[i] = encryptByte(self, chunk[i], decrypt)
  }
  return out
}

}).call(this,require("buffer").Buffer)
},{"buffer":95}],79:[function(require,module,exports){
(function (Buffer){
var xor = require('buffer-xor')

function incr32 (iv) {
  var len = iv.length
  var item
  while (len--) {
    item = iv.readUInt8(len)
    if (item === 255) {
      iv.writeUInt8(0, len)
    } else {
      item++
      iv.writeUInt8(item, len)
      break
    }
  }
}

function getBlock (self) {
  var out = self._cipher.encryptBlock(self._prev)
  incr32(self._prev)
  return out
}

exports.encrypt = function (self, chunk) {
  while (self._cache.length < chunk.length) {
    self._cache = Buffer.concat([self._cache, getBlock(self)])
  }
  var pad = self._cache.slice(0, chunk.length)
  self._cache = self._cache.slice(chunk.length)
  return xor(chunk, pad)
}

}).call(this,require("buffer").Buffer)
},{"buffer":95,"buffer-xor":94}],80:[function(require,module,exports){
exports.encrypt = function (self, block) {
  return self._cipher.encryptBlock(block)
}
exports.decrypt = function (self, block) {
  return self._cipher.decryptBlock(block)
}

},{}],81:[function(require,module,exports){
(function (Buffer){
var xor = require('buffer-xor')

function getBlock (self) {
  self._prev = self._cipher.encryptBlock(self._prev)
  return self._prev
}

exports.encrypt = function (self, chunk) {
  while (self._cache.length < chunk.length) {
    self._cache = Buffer.concat([self._cache, getBlock(self)])
  }

  var pad = self._cache.slice(0, chunk.length)
  self._cache = self._cache.slice(chunk.length)
  return xor(chunk, pad)
}

}).call(this,require("buffer").Buffer)
},{"buffer":95,"buffer-xor":94}],82:[function(require,module,exports){
(function (Buffer){
var aes = require('./aes')
var Transform = require('cipher-base')
var inherits = require('inherits')

inherits(StreamCipher, Transform)
module.exports = StreamCipher
function StreamCipher (mode, key, iv, decrypt) {
  if (!(this instanceof StreamCipher)) {
    return new StreamCipher(mode, key, iv)
  }
  Transform.call(this)
  this._cipher = new aes.AES(key)
  this._prev = new Buffer(iv.length)
  this._cache = new Buffer('')
  this._secCache = new Buffer('')
  this._decrypt = decrypt
  iv.copy(this._prev)
  this._mode = mode
}
StreamCipher.prototype._update = function (chunk) {
  return this._mode.encrypt(this, chunk, this._decrypt)
}
StreamCipher.prototype._final = function () {
  this._cipher.scrub()
}

}).call(this,require("buffer").Buffer)
},{"./aes":68,"buffer":95,"cipher-base":96,"inherits":139}],83:[function(require,module,exports){
var ebtk = require('evp_bytestokey')
var aes = require('browserify-aes/browser')
var DES = require('browserify-des')
var desModes = require('browserify-des/modes')
var aesModes = require('browserify-aes/modes')
function createCipher (suite, password) {
  var keyLen, ivLen
  suite = suite.toLowerCase()
  if (aesModes[suite]) {
    keyLen = aesModes[suite].key
    ivLen = aesModes[suite].iv
  } else if (desModes[suite]) {
    keyLen = desModes[suite].key * 8
    ivLen = desModes[suite].iv
  } else {
    throw new TypeError('invalid suite type')
  }
  var keys = ebtk(password, false, keyLen, ivLen)
  return createCipheriv(suite, keys.key, keys.iv)
}
function createDecipher (suite, password) {
  var keyLen, ivLen
  suite = suite.toLowerCase()
  if (aesModes[suite]) {
    keyLen = aesModes[suite].key
    ivLen = aesModes[suite].iv
  } else if (desModes[suite]) {
    keyLen = desModes[suite].key * 8
    ivLen = desModes[suite].iv
  } else {
    throw new TypeError('invalid suite type')
  }
  var keys = ebtk(password, false, keyLen, ivLen)
  return createDecipheriv(suite, keys.key, keys.iv)
}

function createCipheriv (suite, key, iv) {
  suite = suite.toLowerCase()
  if (aesModes[suite]) {
    return aes.createCipheriv(suite, key, iv)
  } else if (desModes[suite]) {
    return new DES({
      key: key,
      iv: iv,
      mode: suite
    })
  } else {
    throw new TypeError('invalid suite type')
  }
}
function createDecipheriv (suite, key, iv) {
  suite = suite.toLowerCase()
  if (aesModes[suite]) {
    return aes.createDecipheriv(suite, key, iv)
  } else if (desModes[suite]) {
    return new DES({
      key: key,
      iv: iv,
      mode: suite,
      decrypt: true
    })
  } else {
    throw new TypeError('invalid suite type')
  }
}
exports.createCipher = exports.Cipher = createCipher
exports.createCipheriv = exports.Cipheriv = createCipheriv
exports.createDecipher = exports.Decipher = createDecipher
exports.createDecipheriv = exports.Decipheriv = createDecipheriv
function getCiphers () {
  return Object.keys(desModes).concat(aes.getCiphers())
}
exports.listCiphers = exports.getCiphers = getCiphers

},{"browserify-aes/browser":70,"browserify-aes/modes":74,"browserify-des":84,"browserify-des/modes":85,"evp_bytestokey":136}],84:[function(require,module,exports){
(function (Buffer){
var CipherBase = require('cipher-base')
var des = require('des.js')
var inherits = require('inherits')

var modes = {
  'des-ede3-cbc': des.CBC.instantiate(des.EDE),
  'des-ede3': des.EDE,
  'des-ede-cbc': des.CBC.instantiate(des.EDE),
  'des-ede': des.EDE,
  'des-cbc': des.CBC.instantiate(des.DES),
  'des-ecb': des.DES
}
modes.des = modes['des-cbc']
modes.des3 = modes['des-ede3-cbc']
module.exports = DES
inherits(DES, CipherBase)
function DES (opts) {
  CipherBase.call(this)
  var modeName = opts.mode.toLowerCase()
  var mode = modes[modeName]
  var type
  if (opts.decrypt) {
    type = 'decrypt'
  } else {
    type = 'encrypt'
  }
  var key = opts.key
  if (modeName === 'des-ede' || modeName === 'des-ede-cbc') {
    key = Buffer.concat([key, key.slice(0, 8)])
  }
  var iv = opts.iv
  this._des = mode.create({
    key: key,
    iv: iv,
    type: type
  })
}
DES.prototype._update = function (data) {
  return new Buffer(this._des.update(data))
}
DES.prototype._final = function () {
  return new Buffer(this._des.final())
}

}).call(this,require("buffer").Buffer)
},{"buffer":95,"cipher-base":96,"des.js":104,"inherits":139}],85:[function(require,module,exports){
exports['des-ecb'] = {
  key: 8,
  iv: 0
}
exports['des-cbc'] = exports.des = {
  key: 8,
  iv: 8
}
exports['des-ede3-cbc'] = exports.des3 = {
  key: 24,
  iv: 8
}
exports['des-ede3'] = {
  key: 24,
  iv: 0
}
exports['des-ede-cbc'] = {
  key: 16,
  iv: 8
}
exports['des-ede'] = {
  key: 16,
  iv: 0
}

},{}],86:[function(require,module,exports){
(function (Buffer){
var bn = require('bn.js');
var randomBytes = require('randombytes');
module.exports = crt;
function blind(priv) {
  var r = getr(priv);
  var blinder = r.toRed(bn.mont(priv.modulus))
  .redPow(new bn(priv.publicExponent)).fromRed();
  return {
    blinder: blinder,
    unblinder:r.invm(priv.modulus)
  };
}
function crt(msg, priv) {
  var blinds = blind(priv);
  var len = priv.modulus.byteLength();
  var mod = bn.mont(priv.modulus);
  var blinded = new bn(msg).mul(blinds.blinder).umod(priv.modulus);
  var c1 = blinded.toRed(bn.mont(priv.prime1));
  var c2 = blinded.toRed(bn.mont(priv.prime2));
  var qinv = priv.coefficient;
  var p = priv.prime1;
  var q = priv.prime2;
  var m1 = c1.redPow(priv.exponent1);
  var m2 = c2.redPow(priv.exponent2);
  m1 = m1.fromRed();
  m2 = m2.fromRed();
  var h = m1.isub(m2).imul(qinv).umod(p);
  h.imul(q);
  m2.iadd(h);
  return new Buffer(m2.imul(blinds.unblinder).umod(priv.modulus).toArray(false, len));
}
crt.getr = getr;
function getr(priv) {
  var len = priv.modulus.byteLength();
  var r = new bn(randomBytes(len));
  while (r.cmp(priv.modulus) >=  0 || !r.umod(priv.prime1) || !r.umod(priv.prime2)) {
    r = new bn(randomBytes(len));
  }
  return r;
}

}).call(this,require("buffer").Buffer)
},{"bn.js":65,"buffer":95,"randombytes":163}],87:[function(require,module,exports){
(function (Buffer){
'use strict'
exports['RSA-SHA224'] = exports.sha224WithRSAEncryption = {
  sign: 'rsa',
  hash: 'sha224',
  id: new Buffer('302d300d06096086480165030402040500041c', 'hex')
}
exports['RSA-SHA256'] = exports.sha256WithRSAEncryption = {
  sign: 'rsa',
  hash: 'sha256',
  id: new Buffer('3031300d060960864801650304020105000420', 'hex')
}
exports['RSA-SHA384'] = exports.sha384WithRSAEncryption = {
  sign: 'rsa',
  hash: 'sha384',
  id: new Buffer('3041300d060960864801650304020205000430', 'hex')
}
exports['RSA-SHA512'] = exports.sha512WithRSAEncryption = {
  sign: 'rsa',
  hash: 'sha512',
  id: new Buffer('3051300d060960864801650304020305000440', 'hex')
}
exports['RSA-SHA1'] = {
  sign: 'rsa',
  hash: 'sha1',
  id: new Buffer('3021300906052b0e03021a05000414', 'hex')
}
exports['ecdsa-with-SHA1'] = {
  sign: 'ecdsa',
  hash: 'sha1',
  id: new Buffer('', 'hex')
}

exports.DSA = exports['DSA-SHA1'] = exports['DSA-SHA'] = {
  sign: 'dsa',
  hash: 'sha1',
  id: new Buffer('', 'hex')
}
exports['DSA-SHA224'] = exports['DSA-WITH-SHA224'] = {
  sign: 'dsa',
  hash: 'sha224',
  id: new Buffer('', 'hex')
}
exports['DSA-SHA256'] = exports['DSA-WITH-SHA256'] = {
  sign: 'dsa',
  hash: 'sha256',
  id: new Buffer('', 'hex')
}
exports['DSA-SHA384'] = exports['DSA-WITH-SHA384'] = {
  sign: 'dsa',
  hash: 'sha384',
  id: new Buffer('', 'hex')
}
exports['DSA-SHA512'] = exports['DSA-WITH-SHA512'] = {
  sign: 'dsa',
  hash: 'sha512',
  id: new Buffer('', 'hex')
}
exports['DSA-RIPEMD160'] = {
  sign: 'dsa',
  hash: 'rmd160',
  id: new Buffer('', 'hex')
}
exports['RSA-RIPEMD160'] = exports.ripemd160WithRSA = {
  sign: 'rsa',
  hash: 'rmd160',
  id: new Buffer('3021300906052b2403020105000414', 'hex')
}
exports['RSA-MD5'] = exports.md5WithRSAEncryption = {
  sign: 'rsa',
  hash: 'md5',
  id: new Buffer('3020300c06082a864886f70d020505000410', 'hex')
}

}).call(this,require("buffer").Buffer)
},{"buffer":95}],88:[function(require,module,exports){
(function (Buffer){
var _algos = require('./algos')
var createHash = require('create-hash')
var inherits = require('inherits')
var sign = require('./sign')
var stream = require('stream')
var verify = require('./verify')

var algos = {}
Object.keys(_algos).forEach(function (key) {
  algos[key] = algos[key.toLowerCase()] = _algos[key]
})

function Sign (algorithm) {
  stream.Writable.call(this)

  var data = algos[algorithm]
  if (!data) {
    throw new Error('Unknown message digest')
  }

  this._hashType = data.hash
  this._hash = createHash(data.hash)
  this._tag = data.id
  this._signType = data.sign
}
inherits(Sign, stream.Writable)

Sign.prototype._write = function _write (data, _, done) {
  this._hash.update(data)
  done()
}

Sign.prototype.update = function update (data, enc) {
  if (typeof data === 'string') {
    data = new Buffer(data, enc)
  }

  this._hash.update(data)
  return this
}

Sign.prototype.sign = function signMethod (key, enc) {
  this.end()
  var hash = this._hash.digest()
  var sig = sign(Buffer.concat([this._tag, hash]), key, this._hashType, this._signType)

  return enc ? sig.toString(enc) : sig
}

function Verify (algorithm) {
  stream.Writable.call(this)

  var data = algos[algorithm]
  if (!data) {
    throw new Error('Unknown message digest')
  }

  this._hash = createHash(data.hash)
  this._tag = data.id
  this._signType = data.sign
}
inherits(Verify, stream.Writable)

Verify.prototype._write = function _write (data, _, done) {
  this._hash.update(data)

  done()
}

Verify.prototype.update = function update (data, enc) {
  if (typeof data === 'string') {
    data = new Buffer(data, enc)
  }

  this._hash.update(data)
  return this
}

Verify.prototype.verify = function verifyMethod (key, sig, enc) {
  if (typeof sig === 'string') {
    sig = new Buffer(sig, enc)
  }

  this.end()
  var hash = this._hash.digest()

  return verify(sig, Buffer.concat([this._tag, hash]), key, this._signType)
}

function createSign (algorithm) {
  return new Sign(algorithm)
}

function createVerify (algorithm) {
  return new Verify(algorithm)
}

module.exports = {
  Sign: createSign,
  Verify: createVerify,
  createSign: createSign,
  createVerify: createVerify
}

}).call(this,require("buffer").Buffer)
},{"./algos":87,"./sign":90,"./verify":91,"buffer":95,"create-hash":99,"inherits":139,"stream":189}],89:[function(require,module,exports){
'use strict'
exports['1.3.132.0.10'] = 'secp256k1'

exports['1.3.132.0.33'] = 'p224'

exports['1.2.840.10045.3.1.1'] = 'p192'

exports['1.2.840.10045.3.1.7'] = 'p256'

exports['1.3.132.0.34'] = 'p384'

exports['1.3.132.0.35'] = 'p521'

},{}],90:[function(require,module,exports){
(function (Buffer){
// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js
var createHmac = require('create-hmac')
var crt = require('browserify-rsa')
var curves = require('./curves')
var elliptic = require('elliptic')
var parseKeys = require('parse-asn1')

var BN = require('bn.js')
var EC = elliptic.ec

function sign (hash, key, hashType, signType) {
  var priv = parseKeys(key)
  if (priv.curve) {
    if (signType !== 'ecdsa') throw new Error('wrong private key type')

    return ecSign(hash, priv)
  } else if (priv.type === 'dsa') {
    if (signType !== 'dsa') {
      throw new Error('wrong private key type')
    }
    return dsaSign(hash, priv, hashType)
  } else {
    if (signType !== 'rsa') throw new Error('wrong private key type')
  }

  var len = priv.modulus.byteLength()
  var pad = [ 0, 1 ]
  while (hash.length + pad.length + 1 < len) {
    pad.push(0xff)
  }
  pad.push(0x00)
  var i = -1
  while (++i < hash.length) {
    pad.push(hash[i])
  }

  var out = crt(pad, priv)
  return out
}

function ecSign (hash, priv) {
  var curveId = curves[priv.curve.join('.')]
  if (!curveId) throw new Error('unknown curve ' + priv.curve.join('.'))

  var curve = new EC(curveId)
  var key = curve.genKeyPair()

  key._importPrivate(priv.privateKey)
  var out = key.sign(hash)

  return new Buffer(out.toDER())
}

function dsaSign (hash, priv, algo) {
  var x = priv.params.priv_key
  var p = priv.params.p
  var q = priv.params.q
  var g = priv.params.g
  var r = new BN(0)
  var k
  var H = bits2int(hash, q).mod(q)
  var s = false
  var kv = getKey(x, q, hash, algo)
  while (s === false) {
    k = makeKey(q, kv, algo)
    r = makeR(g, k, p, q)
    s = k.invm(q).imul(H.add(x.mul(r))).mod(q)
    if (!s.cmpn(0)) {
      s = false
      r = new BN(0)
    }
  }
  return toDER(r, s)
}

function toDER (r, s) {
  r = r.toArray()
  s = s.toArray()

  // Pad values
  if (r[0] & 0x80) {
    r = [ 0 ].concat(r)
  }
  // Pad values
  if (s[0] & 0x80) {
    s = [0].concat(s)
  }

  var total = r.length + s.length + 4
  var res = [ 0x30, total, 0x02, r.length ]
  res = res.concat(r, [ 0x02, s.length ], s)
  return new Buffer(res)
}

function getKey (x, q, hash, algo) {
  x = new Buffer(x.toArray())
  if (x.length < q.byteLength()) {
    var zeros = new Buffer(q.byteLength() - x.length)
    zeros.fill(0)
    x = Buffer.concat([zeros, x])
  }
  var hlen = hash.length
  var hbits = bits2octets(hash, q)
  var v = new Buffer(hlen)
  v.fill(1)
  var k = new Buffer(hlen)
  k.fill(0)
  k = createHmac(algo, k)
    .update(v)
    .update(new Buffer([0]))
    .update(x)
    .update(hbits)
    .digest()
  v = createHmac(algo, k)
    .update(v)
    .digest()
  k = createHmac(algo, k)
    .update(v)
    .update(new Buffer([1]))
    .update(x)
    .update(hbits)
    .digest()
  v = createHmac(algo, k)
    .update(v)
    .digest()
  return {
    k: k,
    v: v
  }
}

function bits2int (obits, q) {
  var bits = new BN(obits)
  var shift = (obits.length << 3) - q.bitLength()
  if (shift > 0) {
    bits.ishrn(shift)
  }
  return bits
}

function bits2octets (bits, q) {
  bits = bits2int(bits, q)
  bits = bits.mod(q)
  var out = new Buffer(bits.toArray())
  if (out.length < q.byteLength()) {
    var zeros = new Buffer(q.byteLength() - out.length)
    zeros.fill(0)
    out = Buffer.concat([zeros, out])
  }
  return out
}

function makeKey (q, kv, algo) {
  var t, k

  do {
    t = new Buffer('')

    while (t.length * 8 < q.bitLength()) {
      kv.v = createHmac(algo, kv.k)
        .update(kv.v)
        .digest()
      t = Buffer.concat([t, kv.v])
    }

    k = bits2int(t, q)
    kv.k = createHmac(algo, kv.k)
      .update(kv.v)
      .update(new Buffer([0]))
      .digest()
    kv.v = createHmac(algo, kv.k)
      .update(kv.v)
      .digest()
  } while (k.cmp(q) !== -1)

  return k
}

function makeR (g, k, p, q) {
  return g.toRed(BN.mont(p)).redPow(k).fromRed().mod(q)
}

module.exports = sign
module.exports.getKey = getKey
module.exports.makeKey = makeKey

}).call(this,require("buffer").Buffer)
},{"./curves":89,"bn.js":65,"browserify-rsa":86,"buffer":95,"create-hmac":102,"elliptic":114,"parse-asn1":148}],91:[function(require,module,exports){
(function (Buffer){
// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js
var curves = require('./curves')
var elliptic = require('elliptic')
var parseKeys = require('parse-asn1')

var BN = require('bn.js')
var EC = elliptic.ec

function verify (sig, hash, key, signType) {
  var pub = parseKeys(key)
  if (pub.type === 'ec') {
    if (signType !== 'ecdsa') {
      throw new Error('wrong public key type')
    }
    return ecVerify(sig, hash, pub)
  } else if (pub.type === 'dsa') {
    if (signType !== 'dsa') {
      throw new Error('wrong public key type')
    }
    return dsaVerify(sig, hash, pub)
  } else {
    if (signType !== 'rsa') {
      throw new Error('wrong public key type')
    }
  }
  var len = pub.modulus.byteLength()
  var pad = [ 1 ]
  var padNum = 0
  while (hash.length + pad.length + 2 < len) {
    pad.push(0xff)
    padNum++
  }
  pad.push(0x00)
  var i = -1
  while (++i < hash.length) {
    pad.push(hash[i])
  }
  pad = new Buffer(pad)
  var red = BN.mont(pub.modulus)
  sig = new BN(sig).toRed(red)

  sig = sig.redPow(new BN(pub.publicExponent))

  sig = new Buffer(sig.fromRed().toArray())
  var out = 0
  if (padNum < 8) {
    out = 1
  }
  len = Math.min(sig.length, pad.length)
  if (sig.length !== pad.length) {
    out = 1
  }

  i = -1
  while (++i < len) {
    out |= (sig[i] ^ pad[i])
  }
  return out === 0
}

function ecVerify (sig, hash, pub) {
  var curveId = curves[pub.data.algorithm.curve.join('.')]
  if (!curveId) throw new Error('unknown curve ' + pub.data.algorithm.curve.join('.'))

  var curve = new EC(curveId)
  var pubkey = pub.data.subjectPrivateKey.data

  return curve.verify(hash, sig, pubkey)
}

function dsaVerify (sig, hash, pub) {
  var p = pub.data.p
  var q = pub.data.q
  var g = pub.data.g
  var y = pub.data.pub_key
  var unpacked = parseKeys.signature.decode(sig, 'der')
  var s = unpacked.s
  var r = unpacked.r
  checkValue(s, q)
  checkValue(r, q)
  var montp = BN.mont(p)
  var w = s.invm(q)
  var v = g.toRed(montp)
    .redPow(new BN(hash).mul(w).mod(q))
    .fromRed()
    .mul(
      y.toRed(montp)
        .redPow(r.mul(w).mod(q))
        .fromRed()
  ).mod(p).mod(q)
  return !v.cmp(r)
}

function checkValue (b, q) {
  if (b.cmpn(0) <= 0) {
    throw new Error('invalid sig')
  }
  if (b.cmp(q) >= q) {
    throw new Error('invalid sig')
  }
}

module.exports = verify

}).call(this,require("buffer").Buffer)
},{"./curves":89,"bn.js":65,"buffer":95,"elliptic":114,"parse-asn1":148}],92:[function(require,module,exports){
// Base58 encoding/decoding
// Originally written by Mike Hearn for BitcoinJ
// Copyright (c) 2011 Google Inc
// Ported to JavaScript by Stefan Thomas
// Merged Buffer refactorings from base58-native by Stephen Pair
// Copyright (c) 2013 BitPay Inc

var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
var ALPHABET_MAP = {}
for(var i = 0; i < ALPHABET.length; i++) {
  ALPHABET_MAP[ALPHABET.charAt(i)] = i
}
var BASE = 58

function encode(buffer) {
  if (buffer.length === 0) return ''

  var i, j, digits = [0]
  for (i = 0; i < buffer.length; i++) {
    for (j = 0; j < digits.length; j++) digits[j] <<= 8

    digits[0] += buffer[i]

    var carry = 0
    for (j = 0; j < digits.length; ++j) {
      digits[j] += carry

      carry = (digits[j] / BASE) | 0
      digits[j] %= BASE
    }

    while (carry) {
      digits.push(carry % BASE)

      carry = (carry / BASE) | 0
    }
  }

  // deal with leading zeros
  for (i = 0; buffer[i] === 0 && i < buffer.length - 1; i++) digits.push(0)

  return digits.reverse().map(function(digit) { return ALPHABET[digit] }).join('')
}

function decode(string) {
  if (string.length === 0) return []

  var i, j, bytes = [0]
  for (i = 0; i < string.length; i++) {
    var c = string[i]
    if (!(c in ALPHABET_MAP)) throw new Error('Non-base58 character')

    for (j = 0; j < bytes.length; j++) bytes[j] *= BASE
    bytes[0] += ALPHABET_MAP[c]

    var carry = 0
    for (j = 0; j < bytes.length; ++j) {
      bytes[j] += carry

      carry = bytes[j] >> 8
      bytes[j] &= 0xff
    }

    while (carry) {
      bytes.push(carry & 0xff)

      carry >>= 8
    }
  }

  // deal with leading zeros
  for (i = 0; string[i] === '1' && i < string.length - 1; i++) bytes.push(0)

  return bytes.reverse()
}

module.exports = {
  encode: encode,
  decode: decode
}

},{}],93:[function(require,module,exports){


module.exports = function(cmp,to){
  var c = 0;
  for(var i=0;i<cmp.length;++i){
    if(i == to.length) break;
    c = cmp[i] < to[i]?-1:cmp[i] > to[i]?1:0;    
    if(c != 0) break;
  }
  if(c == 0){
    if(to.length > cmp.length) c = -1;
    else if(cmp.length > to.length) c = 1;
  }
  return c;
}


},{}],94:[function(require,module,exports){
(function (Buffer){
module.exports = function xor (a, b) {
  var length = Math.min(a.length, b.length)
  var buffer = new Buffer(length)

  for (var i = 0; i < length; ++i) {
    buffer[i] = a[i] ^ b[i]
  }

  return buffer
}

}).call(this,require("buffer").Buffer)
},{"buffer":95}],95:[function(require,module,exports){
(function (global){
/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */
/* eslint-disable no-proto */

'use strict'

var base64 = require('base64-js')
var ieee754 = require('ieee754')
var isArray = require('isarray')

exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50
Buffer.poolSize = 8192 // not used by this implementation

var rootParent = {}

/**
 * If `Buffer.TYPED_ARRAY_SUPPORT`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Use Object implementation (most compatible, even IE6)
 *
 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
 * Opera 11.6+, iOS 4.2+.
 *
 * Due to various browser bugs, sometimes the Object implementation will be used even
 * when the browser supports typed arrays.
 *
 * Note:
 *
 *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
 *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
 *
 *   - Safari 5-7 lacks support for changing the `Object.prototype.constructor` property
 *     on objects.
 *
 *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
 *
 *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
 *     incorrect length in some situations.

 * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
 * get the Object implementation, which is slower but behaves correctly.
 */
Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
  ? global.TYPED_ARRAY_SUPPORT
  : typedArraySupport()

function typedArraySupport () {
  function Bar () {}
  try {
    var arr = new Uint8Array(1)
    arr.foo = function () { return 42 }
    arr.constructor = Bar
    return arr.foo() === 42 && // typed array instances can be augmented
        arr.constructor === Bar && // constructor can be set
        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
  } catch (e) {
    return false
  }
}

function kMaxLength () {
  return Buffer.TYPED_ARRAY_SUPPORT
    ? 0x7fffffff
    : 0x3fffffff
}

/**
 * Class: Buffer
 * =============
 *
 * The Buffer constructor returns instances of `Uint8Array` that are augmented
 * with function properties for all the node `Buffer` API functions. We use
 * `Uint8Array` so that square bracket notation works as expected -- it returns
 * a single octet.
 *
 * By augmenting the instances, we can avoid modifying the `Uint8Array`
 * prototype.
 */
function Buffer (arg) {
  if (!(this instanceof Buffer)) {
    // Avoid going through an ArgumentsAdaptorTrampoline in the common case.
    if (arguments.length > 1) return new Buffer(arg, arguments[1])
    return new Buffer(arg)
  }

  if (!Buffer.TYPED_ARRAY_SUPPORT) {
    this.length = 0
    this.parent = undefined
  }

  // Common case.
  if (typeof arg === 'number') {
    return fromNumber(this, arg)
  }

  // Slightly less common case.
  if (typeof arg === 'string') {
    return fromString(this, arg, arguments.length > 1 ? arguments[1] : 'utf8')
  }

  // Unusual.
  return fromObject(this, arg)
}

function fromNumber (that, length) {
  that = allocate(that, length < 0 ? 0 : checked(length) | 0)
  if (!Buffer.TYPED_ARRAY_SUPPORT) {
    for (var i = 0; i < length; i++) {
      that[i] = 0
    }
  }
  return that
}

function fromString (that, string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') encoding = 'utf8'

  // Assumption: byteLength() return value is always < kMaxLength.
  var length = byteLength(string, encoding) | 0
  that = allocate(that, length)

  that.write(string, encoding)
  return that
}

function fromObject (that, object) {
  if (Buffer.isBuffer(object)) return fromBuffer(that, object)

  if (isArray(object)) return fromArray(that, object)

  if (object == null) {
    throw new TypeError('must start with number, buffer, array or string')
  }

  if (typeof ArrayBuffer !== 'undefined') {
    if (object.buffer instanceof ArrayBuffer) {
      return fromTypedArray(that, object)
    }
    if (object instanceof ArrayBuffer) {
      return fromArrayBuffer(that, object)
    }
  }

  if (object.length) return fromArrayLike(that, object)

  return fromJsonObject(that, object)
}

function fromBuffer (that, buffer) {
  var length = checked(buffer.length) | 0
  that = allocate(that, length)
  buffer.copy(that, 0, 0, length)
  return that
}

function fromArray (that, array) {
  var length = checked(array.length) | 0
  that = allocate(that, length)
  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

// Duplicate of fromArray() to keep fromArray() monomorphic.
function fromTypedArray (that, array) {
  var length = checked(array.length) | 0
  that = allocate(that, length)
  // Truncating the elements is probably not what people expect from typed
  // arrays with BYTES_PER_ELEMENT > 1 but it's compatible with the behavior
  // of the old Buffer constructor.
  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

function fromArrayBuffer (that, array) {
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    array.byteLength
    that = Buffer._augment(new Uint8Array(array))
  } else {
    // Fallback: Return an object instance of the Buffer class
    that = fromTypedArray(that, new Uint8Array(array))
  }
  return that
}

function fromArrayLike (that, array) {
  var length = checked(array.length) | 0
  that = allocate(that, length)
  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

// Deserialize { type: 'Buffer', data: [1,2,3,...] } into a Buffer object.
// Returns a zero-length buffer for inputs that don't conform to the spec.
function fromJsonObject (that, object) {
  var array
  var length = 0

  if (object.type === 'Buffer' && isArray(object.data)) {
    array = object.data
    length = checked(array.length) | 0
  }
  that = allocate(that, length)

  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

if (Buffer.TYPED_ARRAY_SUPPORT) {
  Buffer.prototype.__proto__ = Uint8Array.prototype
  Buffer.__proto__ = Uint8Array
} else {
  // pre-set for values that may exist in the future
  Buffer.prototype.length = undefined
  Buffer.prototype.parent = undefined
}

function allocate (that, length) {
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    that = Buffer._augment(new Uint8Array(length))
    that.__proto__ = Buffer.prototype
  } else {
    // Fallback: Return an object instance of the Buffer class
    that.length = length
    that._isBuffer = true
  }

  var fromPool = length !== 0 && length <= Buffer.poolSize >>> 1
  if (fromPool) that.parent = rootParent

  return that
}

function checked (length) {
  // Note: cannot use `length < kMaxLength` here because that fails when
  // length is NaN (which is otherwise coerced to zero.)
  if (length >= kMaxLength()) {
    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
                         'size: 0x' + kMaxLength().toString(16) + ' bytes')
  }
  return length | 0
}

function SlowBuffer (subject, encoding) {
  if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding)

  var buf = new Buffer(subject, encoding)
  delete buf.parent
  return buf
}

Buffer.isBuffer = function isBuffer (b) {
  return !!(b != null && b._isBuffer)
}

Buffer.compare = function compare (a, b) {
  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
    throw new TypeError('Arguments must be Buffers')
  }

  if (a === b) return 0

  var x = a.length
  var y = b.length

  var i = 0
  var len = Math.min(x, y)
  while (i < len) {
    if (a[i] !== b[i]) break

    ++i
  }

  if (i !== len) {
    x = a[i]
    y = b[i]
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

Buffer.isEncoding = function isEncoding (encoding) {
  switch (String(encoding).toLowerCase()) {
    case 'hex':
    case 'utf8':
    case 'utf-8':
    case 'ascii':
    case 'binary':
    case 'base64':
    case 'raw':
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      return true
    default:
      return false
  }
}

Buffer.concat = function concat (list, length) {
  if (!isArray(list)) throw new TypeError('list argument must be an Array of Buffers.')

  if (list.length === 0) {
    return new Buffer(0)
  }

  var i
  if (length === undefined) {
    length = 0
    for (i = 0; i < list.length; i++) {
      length += list[i].length
    }
  }

  var buf = new Buffer(length)
  var pos = 0
  for (i = 0; i < list.length; i++) {
    var item = list[i]
    item.copy(buf, pos)
    pos += item.length
  }
  return buf
}

function byteLength (string, encoding) {
  if (typeof string !== 'string') string = '' + string

  var len = string.length
  if (len === 0) return 0

  // Use a for loop to avoid recursion
  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'ascii':
      case 'binary':
      // Deprecated
      case 'raw':
      case 'raws':
        return len
      case 'utf8':
      case 'utf-8':
        return utf8ToBytes(string).length
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return len * 2
      case 'hex':
        return len >>> 1
      case 'base64':
        return base64ToBytes(string).length
      default:
        if (loweredCase) return utf8ToBytes(string).length // assume utf8
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}
Buffer.byteLength = byteLength

function slowToString (encoding, start, end) {
  var loweredCase = false

  start = start | 0
  end = end === undefined || end === Infinity ? this.length : end | 0

  if (!encoding) encoding = 'utf8'
  if (start < 0) start = 0
  if (end > this.length) end = this.length
  if (end <= start) return ''

  while (true) {
    switch (encoding) {
      case 'hex':
        return hexSlice(this, start, end)

      case 'utf8':
      case 'utf-8':
        return utf8Slice(this, start, end)

      case 'ascii':
        return asciiSlice(this, start, end)

      case 'binary':
        return binarySlice(this, start, end)

      case 'base64':
        return base64Slice(this, start, end)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return utf16leSlice(this, start, end)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = (encoding + '').toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toString = function toString () {
  var length = this.length | 0
  if (length === 0) return ''
  if (arguments.length === 0) return utf8Slice(this, 0, length)
  return slowToString.apply(this, arguments)
}

Buffer.prototype.equals = function equals (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return true
  return Buffer.compare(this, b) === 0
}

Buffer.prototype.inspect = function inspect () {
  var str = ''
  var max = exports.INSPECT_MAX_BYTES
  if (this.length > 0) {
    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
    if (this.length > max) str += ' ... '
  }
  return '<Buffer ' + str + '>'
}

Buffer.prototype.compare = function compare (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return 0
  return Buffer.compare(this, b)
}

Buffer.prototype.indexOf = function indexOf (val, byteOffset) {
  if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff
  else if (byteOffset < -0x80000000) byteOffset = -0x80000000
  byteOffset >>= 0

  if (this.length === 0) return -1
  if (byteOffset >= this.length) return -1

  // Negative offsets start from the end of the buffer
  if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0)

  if (typeof val === 'string') {
    if (val.length === 0) return -1 // special case: looking for empty string always fails
    return String.prototype.indexOf.call(this, val, byteOffset)
  }
  if (Buffer.isBuffer(val)) {
    return arrayIndexOf(this, val, byteOffset)
  }
  if (typeof val === 'number') {
    if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') {
      return Uint8Array.prototype.indexOf.call(this, val, byteOffset)
    }
    return arrayIndexOf(this, [ val ], byteOffset)
  }

  function arrayIndexOf (arr, val, byteOffset) {
    var foundIndex = -1
    for (var i = 0; byteOffset + i < arr.length; i++) {
      if (arr[byteOffset + i] === val[foundIndex === -1 ? 0 : i - foundIndex]) {
        if (foundIndex === -1) foundIndex = i
        if (i - foundIndex + 1 === val.length) return byteOffset + foundIndex
      } else {
        foundIndex = -1
      }
    }
    return -1
  }

  throw new TypeError('val must be string, number or Buffer')
}

// `get` is deprecated
Buffer.prototype.get = function get (offset) {
  console.log('.get() is deprecated. Access using array indexes instead.')
  return this.readUInt8(offset)
}

// `set` is deprecated
Buffer.prototype.set = function set (v, offset) {
  console.log('.set() is deprecated. Access using array indexes instead.')
  return this.writeUInt8(v, offset)
}

function hexWrite (buf, string, offset, length) {
  offset = Number(offset) || 0
  var remaining = buf.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }

  // must be an even number of digits
  var strLen = string.length
  if (strLen % 2 !== 0) throw new Error('Invalid hex string')

  if (length > strLen / 2) {
    length = strLen / 2
  }
  for (var i = 0; i < length; i++) {
    var parsed = parseInt(string.substr(i * 2, 2), 16)
    if (isNaN(parsed)) throw new Error('Invalid hex string')
    buf[offset + i] = parsed
  }
  return i
}

function utf8Write (buf, string, offset, length) {
  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}

function asciiWrite (buf, string, offset, length) {
  return blitBuffer(asciiToBytes(string), buf, offset, length)
}

function binaryWrite (buf, string, offset, length) {
  return asciiWrite(buf, string, offset, length)
}

function base64Write (buf, string, offset, length) {
  return blitBuffer(base64ToBytes(string), buf, offset, length)
}

function ucs2Write (buf, string, offset, length) {
  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}

Buffer.prototype.write = function write (string, offset, length, encoding) {
  // Buffer#write(string)
  if (offset === undefined) {
    encoding = 'utf8'
    length = this.length
    offset = 0
  // Buffer#write(string, encoding)
  } else if (length === undefined && typeof offset === 'string') {
    encoding = offset
    length = this.length
    offset = 0
  // Buffer#write(string, offset[, length][, encoding])
  } else if (isFinite(offset)) {
    offset = offset | 0
    if (isFinite(length)) {
      length = length | 0
      if (encoding === undefined) encoding = 'utf8'
    } else {
      encoding = length
      length = undefined
    }
  // legacy write(string, encoding, offset, length) - remove in v0.13
  } else {
    var swap = encoding
    encoding = offset
    offset = length | 0
    length = swap
  }

  var remaining = this.length - offset
  if (length === undefined || length > remaining) length = remaining

  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
    throw new RangeError('attempt to write outside buffer bounds')
  }

  if (!encoding) encoding = 'utf8'

  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'hex':
        return hexWrite(this, string, offset, length)

      case 'utf8':
      case 'utf-8':
        return utf8Write(this, string, offset, length)

      case 'ascii':
        return asciiWrite(this, string, offset, length)

      case 'binary':
        return binaryWrite(this, string, offset, length)

      case 'base64':
        // Warning: maxLength not taken into account in base64Write
        return base64Write(this, string, offset, length)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return ucs2Write(this, string, offset, length)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toJSON = function toJSON () {
  return {
    type: 'Buffer',
    data: Array.prototype.slice.call(this._arr || this, 0)
  }
}

function base64Slice (buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64.fromByteArray(buf)
  } else {
    return base64.fromByteArray(buf.slice(start, end))
  }
}

function utf8Slice (buf, start, end) {
  end = Math.min(buf.length, end)
  var res = []

  var i = start
  while (i < end) {
    var firstByte = buf[i]
    var codePoint = null
    var bytesPerSequence = (firstByte > 0xEF) ? 4
      : (firstByte > 0xDF) ? 3
      : (firstByte > 0xBF) ? 2
      : 1

    if (i + bytesPerSequence <= end) {
      var secondByte, thirdByte, fourthByte, tempCodePoint

      switch (bytesPerSequence) {
        case 1:
          if (firstByte < 0x80) {
            codePoint = firstByte
          }
          break
        case 2:
          secondByte = buf[i + 1]
          if ((secondByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
            if (tempCodePoint > 0x7F) {
              codePoint = tempCodePoint
            }
          }
          break
        case 3:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
              codePoint = tempCodePoint
            }
          }
          break
        case 4:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          fourthByte = buf[i + 3]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
              codePoint = tempCodePoint
            }
          }
      }
    }

    if (codePoint === null) {
      // we did not generate a valid codePoint so insert a
      // replacement char (U+FFFD) and advance only 1 byte
      codePoint = 0xFFFD
      bytesPerSequence = 1
    } else if (codePoint > 0xFFFF) {
      // encode to utf16 (surrogate pair dance)
      codePoint -= 0x10000
      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
      codePoint = 0xDC00 | codePoint & 0x3FF
    }

    res.push(codePoint)
    i += bytesPerSequence
  }

  return decodeCodePointsArray(res)
}

// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000

function decodeCodePointsArray (codePoints) {
  var len = codePoints.length
  if (len <= MAX_ARGUMENTS_LENGTH) {
    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
  }

  // Decode in chunks to avoid "call stack size exceeded".
  var res = ''
  var i = 0
  while (i < len) {
    res += String.fromCharCode.apply(
      String,
      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
    )
  }
  return res
}

function asciiSlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; i++) {
    ret += String.fromCharCode(buf[i] & 0x7F)
  }
  return ret
}

function binarySlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; i++) {
    ret += String.fromCharCode(buf[i])
  }
  return ret
}

function hexSlice (buf, start, end) {
  var len = buf.length

  if (!start || start < 0) start = 0
  if (!end || end < 0 || end > len) end = len

  var out = ''
  for (var i = start; i < end; i++) {
    out += toHex(buf[i])
  }
  return out
}

function utf16leSlice (buf, start, end) {
  var bytes = buf.slice(start, end)
  var res = ''
  for (var i = 0; i < bytes.length; i += 2) {
    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
  }
  return res
}

Buffer.prototype.slice = function slice (start, end) {
  var len = this.length
  start = ~~start
  end = end === undefined ? len : ~~end

  if (start < 0) {
    start += len
    if (start < 0) start = 0
  } else if (start > len) {
    start = len
  }

  if (end < 0) {
    end += len
    if (end < 0) end = 0
  } else if (end > len) {
    end = len
  }

  if (end < start) end = start

  var newBuf
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    newBuf = Buffer._augment(this.subarray(start, end))
  } else {
    var sliceLen = end - start
    newBuf = new Buffer(sliceLen, undefined)
    for (var i = 0; i < sliceLen; i++) {
      newBuf[i] = this[i + start]
    }
  }

  if (newBuf.length) newBuf.parent = this.parent || this

  return newBuf
}

/*
 * Need to make sure that buffer isn't trying to write out of bounds.
 */
function checkOffset (offset, ext, length) {
  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}

Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }

  return val
}

Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) {
    checkOffset(offset, byteLength, this.length)
  }

  var val = this[offset + --byteLength]
  var mul = 1
  while (byteLength > 0 && (mul *= 0x100)) {
    val += this[offset + --byteLength] * mul
  }

  return val
}

Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 1, this.length)
  return this[offset]
}

Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return this[offset] | (this[offset + 1] << 8)
}

Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return (this[offset] << 8) | this[offset + 1]
}

Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return ((this[offset]) |
      (this[offset + 1] << 8) |
      (this[offset + 2] << 16)) +
      (this[offset + 3] * 0x1000000)
}

Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] * 0x1000000) +
    ((this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    this[offset + 3])
}

Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var i = byteLength
  var mul = 1
  var val = this[offset + --i]
  while (i > 0 && (mul *= 0x100)) {
    val += this[offset + --i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 1, this.length)
  if (!(this[offset] & 0x80)) return (this[offset])
  return ((0xff - this[offset] + 1) * -1)
}

Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset] | (this[offset + 1] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset + 1] | (this[offset] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset]) |
    (this[offset + 1] << 8) |
    (this[offset + 2] << 16) |
    (this[offset + 3] << 24)
}

Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] << 24) |
    (this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    (this[offset + 3])
}

Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, true, 23, 4)
}

Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, false, 23, 4)
}

Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, true, 52, 8)
}

Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, false, 52, 8)
}

function checkInt (buf, value, offset, ext, max, min) {
  if (!Buffer.isBuffer(buf)) throw new TypeError('buffer must be a Buffer instance')
  if (value > max || value < min) throw new RangeError('value is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('index out of range')
}

Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)

  var mul = 1
  var i = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)

  var i = byteLength - 1
  var mul = 1
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  this[offset] = (value & 0xff)
  return offset + 1
}

function objectWriteUInt16 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) {
    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
      (littleEndian ? i : 1 - i) * 8
  }
}

Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  return offset + 2
}

Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  return offset + 2
}

function objectWriteUInt32 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffffffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) {
    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
  }
}

Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset + 3] = (value >>> 24)
    this[offset + 2] = (value >>> 16)
    this[offset + 1] = (value >>> 8)
    this[offset] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  return offset + 4
}

Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  return offset + 4
}

Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = 0
  var mul = 1
  var sub = value < 0 ? 1 : 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = byteLength - 1
  var mul = 1
  var sub = value < 0 ? 1 : 0
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  if (value < 0) value = 0xff + value + 1
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  return offset + 2
}

Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  return offset + 2
}

Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
    this[offset + 2] = (value >>> 16)
    this[offset + 3] = (value >>> 24)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  return offset + 4
}

Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (value < 0) value = 0xffffffff + value + 1
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  return offset + 4
}

function checkIEEE754 (buf, value, offset, ext, max, min) {
  if (value > max || value < min) throw new RangeError('value is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('index out of range')
  if (offset < 0) throw new RangeError('index out of range')
}

function writeFloat (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
  }
  ieee754.write(buf, value, offset, littleEndian, 23, 4)
  return offset + 4
}

Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
  return writeFloat(this, value, offset, true, noAssert)
}

Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
  return writeFloat(this, value, offset, false, noAssert)
}

function writeDouble (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
  }
  ieee754.write(buf, value, offset, littleEndian, 52, 8)
  return offset + 8
}

Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
  return writeDouble(this, value, offset, true, noAssert)
}

Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
  return writeDouble(this, value, offset, false, noAssert)
}

// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
  if (!start) start = 0
  if (!end && end !== 0) end = this.length
  if (targetStart >= target.length) targetStart = target.length
  if (!targetStart) targetStart = 0
  if (end > 0 && end < start) end = start

  // Copy 0 bytes; we're done
  if (end === start) return 0
  if (target.length === 0 || this.length === 0) return 0

  // Fatal error conditions
  if (targetStart < 0) {
    throw new RangeError('targetStart out of bounds')
  }
  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
  if (end < 0) throw new RangeError('sourceEnd out of bounds')

  // Are we oob?
  if (end > this.length) end = this.length
  if (target.length - targetStart < end - start) {
    end = target.length - targetStart + start
  }

  var len = end - start
  var i

  if (this === target && start < targetStart && targetStart < end) {
    // descending copy from end
    for (i = len - 1; i >= 0; i--) {
      target[i + targetStart] = this[i + start]
    }
  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
    // ascending copy from start
    for (i = 0; i < len; i++) {
      target[i + targetStart] = this[i + start]
    }
  } else {
    target._set(this.subarray(start, start + len), targetStart)
  }

  return len
}

// fill(value, start=0, end=buffer.length)
Buffer.prototype.fill = function fill (value, start, end) {
  if (!value) value = 0
  if (!start) start = 0
  if (!end) end = this.length

  if (end < start) throw new RangeError('end < start')

  // Fill 0 bytes; we're done
  if (end === start) return
  if (this.length === 0) return

  if (start < 0 || start >= this.length) throw new RangeError('start out of bounds')
  if (end < 0 || end > this.length) throw new RangeError('end out of bounds')

  var i
  if (typeof value === 'number') {
    for (i = start; i < end; i++) {
      this[i] = value
    }
  } else {
    var bytes = utf8ToBytes(value.toString())
    var len = bytes.length
    for (i = start; i < end; i++) {
      this[i] = bytes[i % len]
    }
  }

  return this
}

/**
 * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance.
 * Added in Node 0.12. Only available in browsers that support ArrayBuffer.
 */
Buffer.prototype.toArrayBuffer = function toArrayBuffer () {
  if (typeof Uint8Array !== 'undefined') {
    if (Buffer.TYPED_ARRAY_SUPPORT) {
      return (new Buffer(this)).buffer
    } else {
      var buf = new Uint8Array(this.length)
      for (var i = 0, len = buf.length; i < len; i += 1) {
        buf[i] = this[i]
      }
      return buf.buffer
    }
  } else {
    throw new TypeError('Buffer.toArrayBuffer not supported in this browser')
  }
}

// HELPER FUNCTIONS
// ================

var BP = Buffer.prototype

/**
 * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods
 */
Buffer._augment = function _augment (arr) {
  arr.constructor = Buffer
  arr._isBuffer = true

  // save reference to original Uint8Array set method before overwriting
  arr._set = arr.set

  // deprecated
  arr.get = BP.get
  arr.set = BP.set

  arr.write = BP.write
  arr.toString = BP.toString
  arr.toLocaleString = BP.toString
  arr.toJSON = BP.toJSON
  arr.equals = BP.equals
  arr.compare = BP.compare
  arr.indexOf = BP.indexOf
  arr.copy = BP.copy
  arr.slice = BP.slice
  arr.readUIntLE = BP.readUIntLE
  arr.readUIntBE = BP.readUIntBE
  arr.readUInt8 = BP.readUInt8
  arr.readUInt16LE = BP.readUInt16LE
  arr.readUInt16BE = BP.readUInt16BE
  arr.readUInt32LE = BP.readUInt32LE
  arr.readUInt32BE = BP.readUInt32BE
  arr.readIntLE = BP.readIntLE
  arr.readIntBE = BP.readIntBE
  arr.readInt8 = BP.readInt8
  arr.readInt16LE = BP.readInt16LE
  arr.readInt16BE = BP.readInt16BE
  arr.readInt32LE = BP.readInt32LE
  arr.readInt32BE = BP.readInt32BE
  arr.readFloatLE = BP.readFloatLE
  arr.readFloatBE = BP.readFloatBE
  arr.readDoubleLE = BP.readDoubleLE
  arr.readDoubleBE = BP.readDoubleBE
  arr.writeUInt8 = BP.writeUInt8
  arr.writeUIntLE = BP.writeUIntLE
  arr.writeUIntBE = BP.writeUIntBE
  arr.writeUInt16LE = BP.writeUInt16LE
  arr.writeUInt16BE = BP.writeUInt16BE
  arr.writeUInt32LE = BP.writeUInt32LE
  arr.writeUInt32BE = BP.writeUInt32BE
  arr.writeIntLE = BP.writeIntLE
  arr.writeIntBE = BP.writeIntBE
  arr.writeInt8 = BP.writeInt8
  arr.writeInt16LE = BP.writeInt16LE
  arr.writeInt16BE = BP.writeInt16BE
  arr.writeInt32LE = BP.writeInt32LE
  arr.writeInt32BE = BP.writeInt32BE
  arr.writeFloatLE = BP.writeFloatLE
  arr.writeFloatBE = BP.writeFloatBE
  arr.writeDoubleLE = BP.writeDoubleLE
  arr.writeDoubleBE = BP.writeDoubleBE
  arr.fill = BP.fill
  arr.inspect = BP.inspect
  arr.toArrayBuffer = BP.toArrayBuffer

  return arr
}

var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g

function base64clean (str) {
  // Node strips out invalid characters like \n and \t from the string, base64-js does not
  str = stringtrim(str).replace(INVALID_BASE64_RE, '')
  // Node converts strings with length < 2 to ''
  if (str.length < 2) return ''
  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
  while (str.length % 4 !== 0) {
    str = str + '='
  }
  return str
}

function stringtrim (str) {
  if (str.trim) return str.trim()
  return str.replace(/^\s+|\s+$/g, '')
}

function toHex (n) {
  if (n < 16) return '0' + n.toString(16)
  return n.toString(16)
}

function utf8ToBytes (string, units) {
  units = units || Infinity
  var codePoint
  var length = string.length
  var leadSurrogate = null
  var bytes = []

  for (var i = 0; i < length; i++) {
    codePoint = string.charCodeAt(i)

    // is surrogate component
    if (codePoint > 0xD7FF && codePoint < 0xE000) {
      // last char was a lead
      if (!leadSurrogate) {
        // no lead yet
        if (codePoint > 0xDBFF) {
          // unexpected trail
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        } else if (i + 1 === length) {
          // unpaired lead
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        }

        // valid lead
        leadSurrogate = codePoint

        continue
      }

      // 2 leads in a row
      if (codePoint < 0xDC00) {
        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
        leadSurrogate = codePoint
        continue
      }

      // valid surrogate pair
      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
    } else if (leadSurrogate) {
      // valid bmp char, but last char was a lead
      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
    }

    leadSurrogate = null

    // encode utf8
    if (codePoint < 0x80) {
      if ((units -= 1) < 0) break
      bytes.push(codePoint)
    } else if (codePoint < 0x800) {
      if ((units -= 2) < 0) break
      bytes.push(
        codePoint >> 0x6 | 0xC0,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x10000) {
      if ((units -= 3) < 0) break
      bytes.push(
        codePoint >> 0xC | 0xE0,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x110000) {
      if ((units -= 4) < 0) break
      bytes.push(
        codePoint >> 0x12 | 0xF0,
        codePoint >> 0xC & 0x3F | 0x80,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else {
      throw new Error('Invalid code point')
    }
  }

  return bytes
}

function asciiToBytes (str) {
  var byteArray = []
  for (var i = 0; i < str.length; i++) {
    // Node's code seems to be doing this and not & 0x7F..
    byteArray.push(str.charCodeAt(i) & 0xFF)
  }
  return byteArray
}

function utf16leToBytes (str, units) {
  var c, hi, lo
  var byteArray = []
  for (var i = 0; i < str.length; i++) {
    if ((units -= 2) < 0) break

    c = str.charCodeAt(i)
    hi = c >> 8
    lo = c % 256
    byteArray.push(lo)
    byteArray.push(hi)
  }

  return byteArray
}

function base64ToBytes (str) {
  return base64.toByteArray(base64clean(str))
}

function blitBuffer (src, dst, offset, length) {
  for (var i = 0; i < length; i++) {
    if ((i + offset >= dst.length) || (i >= src.length)) break
    dst[i + offset] = src[i]
  }
  return i
}

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"base64-js":64,"ieee754":137,"isarray":141}],96:[function(require,module,exports){
(function (Buffer){
var Transform = require('stream').Transform
var inherits = require('inherits')
var StringDecoder = require('string_decoder').StringDecoder
module.exports = CipherBase
inherits(CipherBase, Transform)
function CipherBase (hashMode) {
  Transform.call(this)
  this.hashMode = typeof hashMode === 'string'
  if (this.hashMode) {
    this[hashMode] = this._finalOrDigest
  } else {
    this.final = this._finalOrDigest
  }
  this._decoder = null
  this._encoding = null
}
CipherBase.prototype.update = function (data, inputEnc, outputEnc) {
  if (typeof data === 'string') {
    data = new Buffer(data, inputEnc)
  }
  var outData = this._update(data)
  if (this.hashMode) {
    return this
  }
  if (outputEnc) {
    outData = this._toString(outData, outputEnc)
  }
  return outData
}

CipherBase.prototype.setAutoPadding = function () {}

CipherBase.prototype.getAuthTag = function () {
  throw new Error('trying to get auth tag in unsupported state')
}

CipherBase.prototype.setAuthTag = function () {
  throw new Error('trying to set auth tag in unsupported state')
}

CipherBase.prototype.setAAD = function () {
  throw new Error('trying to set aad in unsupported state')
}

CipherBase.prototype._transform = function (data, _, next) {
  var err
  try {
    if (this.hashMode) {
      this._update(data)
    } else {
      this.push(this._update(data))
    }
  } catch (e) {
    err = e
  } finally {
    next(err)
  }
}
CipherBase.prototype._flush = function (done) {
  var err
  try {
    this.push(this._final())
  } catch (e) {
    err = e
  } finally {
    done(err)
  }
}
CipherBase.prototype._finalOrDigest = function (outputEnc) {
  var outData = this._final() || new Buffer('')
  if (outputEnc) {
    outData = this._toString(outData, outputEnc, true)
  }
  return outData
}

CipherBase.prototype._toString = function (value, enc, fin) {
  if (!this._decoder) {
    this._decoder = new StringDecoder(enc)
    this._encoding = enc
  }
  if (this._encoding !== enc) {
    throw new Error('can\'t switch encodings')
  }
  var out = this._decoder.write(value)
  if (fin) {
    out += this._decoder.end()
  }
  return out
}

}).call(this,require("buffer").Buffer)
},{"buffer":95,"inherits":139,"stream":189,"string_decoder":190}],97:[function(require,module,exports){
(function (Buffer){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.

function isArray(arg) {
  if (Array.isArray) {
    return Array.isArray(arg);
  }
  return objectToString(arg) === '[object Array]';
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = Buffer.isBuffer;

function objectToString(o) {
  return Object.prototype.toString.call(o);
}

}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
},{"../../is-buffer/index.js":140}],98:[function(require,module,exports){
(function (Buffer){
var elliptic = require('elliptic');
var BN = require('bn.js');

module.exports = function createECDH(curve) {
	return new ECDH(curve);
};

var aliases = {
	secp256k1: {
		name: 'secp256k1',
		byteLength: 32
	},
	secp224r1: {
		name: 'p224',
		byteLength: 28
	},
	prime256v1: {
		name: 'p256',
		byteLength: 32
	},
	prime192v1: {
		name: 'p192',
		byteLength: 24
	},
	ed25519: {
		name: 'ed25519',
		byteLength: 32
	},
	secp384r1: {
		name: 'p384',
		byteLength: 48
	},
	secp521r1: {
		name: 'p521',
		byteLength: 66
	}
};

aliases.p224 = aliases.secp224r1;
aliases.p256 = aliases.secp256r1 = aliases.prime256v1;
aliases.p192 = aliases.secp192r1 = aliases.prime192v1;
aliases.p384 = aliases.secp384r1;
aliases.p521 = aliases.secp521r1;

function ECDH(curve) {
	this.curveType = aliases[curve];
	if (!this.curveType ) {
		this.curveType = {
			name: curve
		};
	}
	this.curve = new elliptic.ec(this.curveType.name);
	this.keys = void 0;
}

ECDH.prototype.generateKeys = function (enc, format) {
	this.keys = this.curve.genKeyPair();
	return this.getPublicKey(enc, format);
};

ECDH.prototype.computeSecret = function (other, inenc, enc) {
	inenc = inenc || 'utf8';
	if (!Buffer.isBuffer(other)) {
		other = new Buffer(other, inenc);
	}
	var otherPub = this.curve.keyFromPublic(other).getPublic();
	var out = otherPub.mul(this.keys.getPrivate()).getX();
	return formatReturnValue(out, enc, this.curveType.byteLength);
};

ECDH.prototype.getPublicKey = function (enc, format) {
	var key = this.keys.getPublic(format === 'compressed', true);
	if (format === 'hybrid') {
		if (key[key.length - 1] % 2) {
			key[0] = 7;
		} else {
			key [0] = 6;
		}
	}
	return formatReturnValue(key, enc);
};

ECDH.prototype.getPrivateKey = function (enc) {
	return formatReturnValue(this.keys.getPrivate(), enc);
};

ECDH.prototype.setPublicKey = function (pub, enc) {
	enc = enc || 'utf8';
	if (!Buffer.isBuffer(pub)) {
		pub = new Buffer(pub, enc);
	}
	this.keys._importPublic(pub);
	return this;
};

ECDH.prototype.setPrivateKey = function (priv, enc) {
	enc = enc || 'utf8';
	if (!Buffer.isBuffer(priv)) {
		priv = new Buffer(priv, enc);
	}
	var _priv = new BN(priv);
	_priv = _priv.toString(16);
	this.keys._importPrivate(_priv);
	return this;
};

function formatReturnValue(bn, enc, len) {
	if (!Array.isArray(bn)) {
		bn = bn.toArray();
	}
	var buf = new Buffer(bn);
	if (len && buf.length < len) {
		var zeros = new Buffer(len - buf.length);
		zeros.fill(0);
		buf = Buffer.concat([zeros, buf]);
	}
	if (!enc) {
		return buf;
	} else {
		return buf.toString(enc);
	}
}

}).call(this,require("buffer").Buffer)
},{"bn.js":65,"buffer":95,"elliptic":114}],99:[function(require,module,exports){
(function (Buffer){
'use strict';
var inherits = require('inherits')
var md5 = require('./md5')
var rmd160 = require('ripemd160')
var sha = require('sha.js')

var Base = require('cipher-base')

function HashNoConstructor(hash) {
  Base.call(this, 'digest')

  this._hash = hash
  this.buffers = []
}

inherits(HashNoConstructor, Base)

HashNoConstructor.prototype._update = function (data) {
  this.buffers.push(data)
}

HashNoConstructor.prototype._final = function () {
  var buf = Buffer.concat(this.buffers)
  var r = this._hash(buf)
  this.buffers = null

  return r
}

function Hash(hash) {
  Base.call(this, 'digest')

  this._hash = hash
}

inherits(Hash, Base)

Hash.prototype._update = function (data) {
  this._hash.update(data)
}

Hash.prototype._final = function () {
  return this._hash.digest()
}

module.exports = function createHash (alg) {
  alg = alg.toLowerCase()
  if ('md5' === alg) return new HashNoConstructor(md5)
  if ('rmd160' === alg || 'ripemd160' === alg) return new HashNoConstructor(rmd160)

  return new Hash(sha(alg))
}

}).call(this,require("buffer").Buffer)
},{"./md5":101,"buffer":95,"cipher-base":96,"inherits":139,"ripemd160":174,"sha.js":176}],100:[function(require,module,exports){
(function (Buffer){
'use strict';
var intSize = 4;
var zeroBuffer = new Buffer(intSize); zeroBuffer.fill(0);
var chrsz = 8;

function toArray(buf, bigEndian) {
  if ((buf.length % intSize) !== 0) {
    var len = buf.length + (intSize - (buf.length % intSize));
    buf = Buffer.concat([buf, zeroBuffer], len);
  }

  var arr = [];
  var fn = bigEndian ? buf.readInt32BE : buf.readInt32LE;
  for (var i = 0; i < buf.length; i += intSize) {
    arr.push(fn.call(buf, i));
  }
  return arr;
}

function toBuffer(arr, size, bigEndian) {
  var buf = new Buffer(size);
  var fn = bigEndian ? buf.writeInt32BE : buf.writeInt32LE;
  for (var i = 0; i < arr.length; i++) {
    fn.call(buf, arr[i], i * 4, true);
  }
  return buf;
}

function hash(buf, fn, hashSize, bigEndian) {
  if (!Buffer.isBuffer(buf)) buf = new Buffer(buf);
  var arr = fn(toArray(buf, bigEndian), buf.length * chrsz);
  return toBuffer(arr, hashSize, bigEndian);
}
exports.hash = hash;
}).call(this,require("buffer").Buffer)
},{"buffer":95}],101:[function(require,module,exports){
'use strict';
/*
 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
 * Digest Algorithm, as defined in RFC 1321.
 * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for more info.
 */

var helpers = require('./helpers');

/*
 * Calculate the MD5 of an array of little-endian words, and a bit length
 */
function core_md5(x, len)
{
  /* append padding */
  x[len >> 5] |= 0x80 << ((len) % 32);
  x[(((len + 64) >>> 9) << 4) + 14] = len;

  var a =  1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d =  271733878;

  for(var i = 0; i < x.length; i += 16)
  {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;

    a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
    d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
    c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
    b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
    a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
    d = md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
    c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
    b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
    a = md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
    d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
    c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
    b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
    a = md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
    d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
    c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
    b = md5_ff(b, c, d, a, x[i+15], 22,  1236535329);

    a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
    d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
    c = md5_gg(c, d, a, b, x[i+11], 14,  643717713);
    b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
    a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
    d = md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);
    c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
    b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
    a = md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);
    d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
    c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
    b = md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);
    a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
    d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
    c = md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);
    b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);

    a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
    d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
    c = md5_hh(c, d, a, b, x[i+11], 16,  1839030562);
    b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
    a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
    d = md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);
    c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
    b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
    a = md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);
    d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
    c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
    b = md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);
    a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
    d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
    c = md5_hh(c, d, a, b, x[i+15], 16,  530742520);
    b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);

    a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
    d = md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);
    c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
    b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
    a = md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);
    d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
    c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
    b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
    a = md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);
    d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
    c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
    b = md5_ii(b, c, d, a, x[i+13], 21,  1309151649);
    a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
    d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
    c = md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);
    b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);

    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
  }
  return Array(a, b, c, d);

}

/*
 * These functions implement the four basic operations the algorithm uses.
 */
function md5_cmn(q, a, b, x, s, t)
{
  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
}
function md5_ff(a, b, c, d, x, s, t)
{
  return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function md5_gg(a, b, c, d, x, s, t)
{
  return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function md5_hh(a, b, c, d, x, s, t)
{
  return md5_cmn(b ^ c ^ d, a, b, x, s, t);
}
function md5_ii(a, b, c, d, x, s, t)
{
  return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
}

/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */
function safe_add(x, y)
{
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xFFFF);
}

/*
 * Bitwise rotate a 32-bit number to the left.
 */
function bit_rol(num, cnt)
{
  return (num << cnt) | (num >>> (32 - cnt));
}

module.exports = function md5(buf) {
  return helpers.hash(buf, core_md5, 16);
};
},{"./helpers":100}],102:[function(require,module,exports){
(function (Buffer){
'use strict';
var createHash = require('create-hash/browser');
var inherits = require('inherits')

var Transform = require('stream').Transform

var ZEROS = new Buffer(128)
ZEROS.fill(0)

function Hmac(alg, key) {
  Transform.call(this)
  alg = alg.toLowerCase()
  if (typeof key === 'string') {
    key = new Buffer(key)
  }

  var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64

  this._alg = alg
  this._key = key

  if (key.length > blocksize) {
    key = createHash(alg).update(key).digest()

  } else if (key.length < blocksize) {
    key = Buffer.concat([key, ZEROS], blocksize)
  }

  var ipad = this._ipad = new Buffer(blocksize)
  var opad = this._opad = new Buffer(blocksize)

  for (var i = 0; i < blocksize; i++) {
    ipad[i] = key[i] ^ 0x36
    opad[i] = key[i] ^ 0x5C
  }

  this._hash = createHash(alg).update(ipad)
}

inherits(Hmac, Transform)

Hmac.prototype.update = function (data, enc) {
  this._hash.update(data, enc)

  return this
}

Hmac.prototype._transform = function (data, _, next) {
  this._hash.update(data)

  next()
}

Hmac.prototype._flush = function (next) {
  this.push(this.digest())

  next()
}

Hmac.prototype.digest = function (enc) {
  var h = this._hash.digest()

  return createHash(this._alg).update(this._opad).update(h).digest(enc)
}

module.exports = function createHmac(alg, key) {
  return new Hmac(alg, key)
}

}).call(this,require("buffer").Buffer)
},{"buffer":95,"create-hash/browser":99,"inherits":139,"stream":189}],103:[function(require,module,exports){
'use strict'

exports.randomBytes = exports.rng = exports.pseudoRandomBytes = exports.prng = require('randombytes')
exports.createHash = exports.Hash = require('create-hash')
exports.createHmac = exports.Hmac = require('create-hmac')

var hashes = ['sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'md5', 'rmd160'].concat(Object.keys(require('browserify-sign/algos')))
exports.getHashes = function () {
  return hashes
}

var p = require('pbkdf2')
exports.pbkdf2 = p.pbkdf2
exports.pbkdf2Sync = p.pbkdf2Sync

var aes = require('browserify-cipher')
;[
  'Cipher',
  'createCipher',
  'Cipheriv',
  'createCipheriv',
  'Decipher',
  'createDecipher',
  'Decipheriv',
  'createDecipheriv',
  'getCiphers',
  'listCiphers'
].forEach(function (key) {
  exports[key] = aes[key]
})

var dh = require('diffie-hellman')
;[
  'DiffieHellmanGroup',
  'createDiffieHellmanGroup',
  'getDiffieHellman',
  'createDiffieHellman',
  'DiffieHellman'
].forEach(function (key) {
  exports[key] = dh[key]
})

var sign = require('browserify-sign')
;[
  'createSign',
  'Sign',
  'createVerify',
  'Verify'
].forEach(function (key) {
  exports[key] = sign[key]
})

exports.createECDH = require('create-ecdh')

var publicEncrypt = require('public-encrypt')

;[
  'publicEncrypt',
  'privateEncrypt',
  'publicDecrypt',
  'privateDecrypt'
].forEach(function (key) {
  exports[key] = publicEncrypt[key]
})

// the least I can do is make error messages for the rest of the node.js/crypto api.
;[
  'createCredentials'
].forEach(function (name) {
  exports[name] = function () {
    throw new Error([
      'sorry, ' + name + ' is not implemented yet',
      'we accept pull requests',
      'https://github.com/crypto-browserify/crypto-browserify'
    ].join('\n'))
  }
})

},{"browserify-cipher":83,"browserify-sign":88,"browserify-sign/algos":87,"create-ecdh":98,"create-hash":99,"create-hmac":102,"diffie-hellman":110,"pbkdf2":149,"public-encrypt":153,"randombytes":163}],104:[function(require,module,exports){
'use strict';

exports.utils = require('./des/utils');
exports.Cipher = require('./des/cipher');
exports.DES = require('./des/des');
exports.CBC = require('./des/cbc');
exports.EDE = require('./des/ede');

},{"./des/cbc":105,"./des/cipher":106,"./des/des":107,"./des/ede":108,"./des/utils":109}],105:[function(require,module,exports){
'use strict';

var assert = require('minimalistic-assert');
var inherits = require('inherits');

var proto = {};

function CBCState(iv) {
  assert.equal(iv.length, 8, 'Invalid IV length');

  this.iv = new Array(8);
  for (var i = 0; i < this.iv.length; i++)
    this.iv[i] = iv[i];
}

function instantiate(Base) {
  function CBC(options) {
    Base.call(this, options);
    this._cbcInit();
  }
  inherits(CBC, Base);

  var keys = Object.keys(proto);
  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    CBC.prototype[key] = proto[key];
  }

  CBC.create = function create(options) {
    return new CBC(options);
  };

  return CBC;
}

exports.instantiate = instantiate;

proto._cbcInit = function _cbcInit() {
  var state = new CBCState(this.options.iv);
  this._cbcState = state;
};

proto._update = function _update(inp, inOff, out, outOff) {
  var state = this._cbcState;
  var superProto = this.constructor.super_.prototype;

  var iv = state.iv;
  if (this.type === 'encrypt') {
    for (var i = 0; i < this.blockSize; i++)
      iv[i] ^= inp[inOff + i];

    superProto._update.call(this, iv, 0, out, outOff);

    for (var i = 0; i < this.blockSize; i++)
      iv[i] = out[outOff + i];
  } else {
    superProto._update.call(this, inp, inOff, out, outOff);

    for (var i = 0; i < this.blockSize; i++)
      out[outOff + i] ^= iv[i];

    for (var i = 0; i < this.blockSize; i++)
      iv[i] = inp[inOff + i];
  }
};

},{"inherits":139,"minimalistic-assert":144}],106:[function(require,module,exports){
'use strict';

var assert = require('minimalistic-assert');

function Cipher(options) {
  this.options = options;

  this.type = this.options.type;
  this.blockSize = 8;
  this._init();

  this.buffer = new Array(this.blockSize);
  this.bufferOff = 0;
}
module.exports = Cipher;

Cipher.prototype._init = function _init() {
  // Might be overrided
};

Cipher.prototype.update = function update(data) {
  if (data.length === 0)
    return [];

  if (this.type === 'decrypt')
    return this._updateDecrypt(data);
  else
    return this._updateEncrypt(data);
};

Cipher.prototype._buffer = function _buffer(data, off) {
  // Append data to buffer
  var min = Math.min(this.buffer.length - this.bufferOff, data.length - off);
  for (var i = 0; i < min; i++)
    this.buffer[this.bufferOff + i] = data[off + i];
  this.bufferOff += min;

  // Shift next
  return min;
};

Cipher.prototype._flushBuffer = function _flushBuffer(out, off) {
  this._update(this.buffer, 0, out, off);
  this.bufferOff = 0;
  return this.blockSize;
};

Cipher.prototype._updateEncrypt = function _updateEncrypt(data) {
  var inputOff = 0;
  var outputOff = 0;

  var count = ((this.bufferOff + data.length) / this.blockSize) | 0;
  var out = new Array(count * this.blockSize);

  if (this.bufferOff !== 0) {
    inputOff += this._buffer(data, inputOff);

    if (this.bufferOff === this.buffer.length)
      outputOff += this._flushBuffer(out, outputOff);
  }

  // Write blocks
  var max = data.length - ((data.length - inputOff) % this.blockSize);
  for (; inputOff < max; inputOff += this.blockSize) {
    this._update(data, inputOff, out, outputOff);
    outputOff += this.blockSize;
  }

  // Queue rest
  for (; inputOff < data.length; inputOff++, this.bufferOff++)
    this.buffer[this.bufferOff] = data[inputOff];

  return out;
};

Cipher.prototype._updateDecrypt = function _updateDecrypt(data) {
  var inputOff = 0;
  var outputOff = 0;

  var count = Math.ceil((this.bufferOff + data.length) / this.blockSize) - 1;
  var out = new Array(count * this.blockSize);

  // TODO(indutny): optimize it, this is far from optimal
  for (; count > 0; count--) {
    inputOff += this._buffer(data, inputOff);
    outputOff += this._flushBuffer(out, outputOff);
  }

  // Buffer rest of the input
  inputOff += this._buffer(data, inputOff);

  return out;
};

Cipher.prototype.final = function final(buffer) {
  var first;
  if (buffer)
    first = this.update(buffer);

  var last;
  if (this.type === 'encrypt')
    last = this._finalEncrypt();
  else
    last = this._finalDecrypt();

  if (first)
    return first.concat(last);
  else
    return last;
};

Cipher.prototype._pad = function _pad(buffer, off) {
  if (off === 0)
    return false;

  while (off < buffer.length)
    buffer[off++] = 0;

  return true;
};

Cipher.prototype._finalEncrypt = function _finalEncrypt() {
  if (!this._pad(this.buffer, this.bufferOff))
    return [];

  var out = new Array(this.blockSize);
  this._update(this.buffer, 0, out, 0);
  return out;
};

Cipher.prototype._unpad = function _unpad(buffer) {
  return buffer;
};

Cipher.prototype._finalDecrypt = function _finalDecrypt() {
  assert.equal(this.bufferOff, this.blockSize, 'Not enough data to decrypt');
  var out = new Array(this.blockSize);
  this._flushBuffer(out, 0);

  return this._unpad(out);
};

},{"minimalistic-assert":144}],107:[function(require,module,exports){
'use strict';

var assert = require('minimalistic-assert');
var inherits = require('inherits');

var des = require('../des');
var utils = des.utils;
var Cipher = des.Cipher;

function DESState() {
  this.tmp = new Array(2);
  this.keys = null;
}

function DES(options) {
  Cipher.call(this, options);

  var state = new DESState();
  this._desState = state;

  this.deriveKeys(state, options.key);
}
inherits(DES, Cipher);
module.exports = DES;

DES.create = function create(options) {
  return new DES(options);
};

var shiftTable = [
  1, 1, 2, 2, 2, 2, 2, 2,
  1, 2, 2, 2, 2, 2, 2, 1
];

DES.prototype.deriveKeys = function deriveKeys(state, key) {
  state.keys = new Array(16 * 2);

  assert.equal(key.length, this.blockSize, 'Invalid key length');

  var kL = utils.readUInt32BE(key, 0);
  var kR = utils.readUInt32BE(key, 4);

  utils.pc1(kL, kR, state.tmp, 0);
  kL = state.tmp[0];
  kR = state.tmp[1];
  for (var i = 0; i < state.keys.length; i += 2) {
    var shift = shiftTable[i >>> 1];
    kL = utils.r28shl(kL, shift);
    kR = utils.r28shl(kR, shift);
    utils.pc2(kL, kR, state.keys, i);
  }
};

DES.prototype._update = function _update(inp, inOff, out, outOff) {
  var state = this._desState;

  var l = utils.readUInt32BE(inp, inOff);
  var r = utils.readUInt32BE(inp, inOff + 4);

  // Initial Permutation
  utils.ip(l, r, state.tmp, 0);
  l = state.tmp[0];
  r = state.tmp[1];

  if (this.type === 'encrypt')
    this._encrypt(state, l, r, state.tmp, 0);
  else
    this._decrypt(state, l, r, state.tmp, 0);

  l = state.tmp[0];
  r = state.tmp[1];

  utils.writeUInt32BE(out, l, outOff);
  utils.writeUInt32BE(out, r, outOff + 4);
};

DES.prototype._pad = function _pad(buffer, off) {
  var value = buffer.length - off;
  for (var i = off; i < buffer.length; i++)
    buffer[i] = value;

  return true;
};

DES.prototype._unpad = function _unpad(buffer) {
  var pad = buffer[buffer.length - 1];
  for (var i = buffer.length - pad; i < buffer.length; i++)
    assert.equal(buffer[i], pad);

  return buffer.slice(0, buffer.length - pad);
};

DES.prototype._encrypt = function _encrypt(state, lStart, rStart, out, off) {
  var l = lStart;
  var r = rStart;

  // Apply f() x16 times
  for (var i = 0; i < state.keys.length; i += 2) {
    var keyL = state.keys[i];
    var keyR = state.keys[i + 1];

    // f(r, k)
    utils.expand(r, state.tmp, 0);

    keyL ^= state.tmp[0];
    keyR ^= state.tmp[1];
    var s = utils.substitute(keyL, keyR);
    var f = utils.permute(s);

    var t = r;
    r = (l ^ f) >>> 0;
    l = t;
  }

  // Reverse Initial Permutation
  utils.rip(r, l, out, off);
};

DES.prototype._decrypt = function _decrypt(state, lStart, rStart, out, off) {
  var l = rStart;
  var r = lStart;

  // Apply f() x16 times
  for (var i = state.keys.length - 2; i >= 0; i -= 2) {
    var keyL = state.keys[i];
    var keyR = state.keys[i + 1];

    // f(r, k)
    utils.expand(l, state.tmp, 0);

    keyL ^= state.tmp[0];
    keyR ^= state.tmp[1];
    var s = utils.substitute(keyL, keyR);
    var f = utils.permute(s);

    var t = l;
    l = (r ^ f) >>> 0;
    r = t;
  }

  // Reverse Initial Permutation
  utils.rip(l, r, out, off);
};

},{"../des":104,"inherits":139,"minimalistic-assert":144}],108:[function(require,module,exports){
'use strict';

var assert = require('minimalistic-assert');
var inherits = require('inherits');

var des = require('../des');
var Cipher = des.Cipher;
var DES = des.DES;

function EDEState(type, key) {
  assert.equal(key.length, 24, 'Invalid key length');

  var k1 = key.slice(0, 8);
  var k2 = key.slice(8, 16);
  var k3 = key.slice(16, 24);

  if (type === 'encrypt') {
    this.ciphers = [
      DES.create({ type: 'encrypt', key: k1 }),
      DES.create({ type: 'decrypt', key: k2 }),
      DES.create({ type: 'encrypt', key: k3 })
    ];
  } else {
    this.ciphers = [
      DES.create({ type: 'decrypt', key: k3 }),
      DES.create({ type: 'encrypt', key: k2 }),
      DES.create({ type: 'decrypt', key: k1 })
    ];
  }
}

function EDE(options) {
  Cipher.call(this, options);

  var state = new EDEState(this.type, this.options.key);
  this._edeState = state;
}
inherits(EDE, Cipher);

module.exports = EDE;

EDE.create = function create(options) {
  return new EDE(options);
};

EDE.prototype._update = function _update(inp, inOff, out, outOff) {
  var state = this._edeState;

  state.ciphers[0]._update(inp, inOff, out, outOff);
  state.ciphers[1]._update(out, outOff, out, outOff);
  state.ciphers[2]._update(out, outOff, out, outOff);
};

EDE.prototype._pad = DES.prototype._pad;
EDE.prototype._unpad = DES.prototype._unpad;

},{"../des":104,"inherits":139,"minimalistic-assert":144}],109:[function(require,module,exports){
'use strict';

exports.readUInt32BE = function readUInt32BE(bytes, off) {
  var res =  (bytes[0 + off] << 24) |
             (bytes[1 + off] << 16) |
             (bytes[2 + off] << 8) |
             bytes[3 + off];
  return res >>> 0;
};

exports.writeUInt32BE = function writeUInt32BE(bytes, value, off) {
  bytes[0 + off] = value >>> 24;
  bytes[1 + off] = (value >>> 16) & 0xff;
  bytes[2 + off] = (value >>> 8) & 0xff;
  bytes[3 + off] = value & 0xff;
};

exports.ip = function ip(inL, inR, out, off) {
  var outL = 0;
  var outR = 0;

  for (var i = 6; i >= 0; i -= 2) {
    for (var j = 0; j <= 24; j += 8) {
      outL <<= 1;
      outL |= (inR >>> (j + i)) & 1;
    }
    for (var j = 0; j <= 24; j += 8) {
      outL <<= 1;
      outL |= (inL >>> (j + i)) & 1;
    }
  }

  for (var i = 6; i >= 0; i -= 2) {
    for (var j = 1; j <= 25; j += 8) {
      outR <<= 1;
      outR |= (inR >>> (j + i)) & 1;
    }
    for (var j = 1; j <= 25; j += 8) {
      outR <<= 1;
      outR |= (inL >>> (j + i)) & 1;
    }
  }

  out[off + 0] = outL >>> 0;
  out[off + 1] = outR >>> 0;
};

exports.rip = function rip(inL, inR, out, off) {
  var outL = 0;
  var outR = 0;

  for (var i = 0; i < 4; i++) {
    for (var j = 24; j >= 0; j -= 8) {
      outL <<= 1;
      outL |= (inR >>> (j + i)) & 1;
      outL <<= 1;
      outL |= (inL >>> (j + i)) & 1;
    }
  }
  for (var i = 4; i < 8; i++) {
    for (var j = 24; j >= 0; j -= 8) {
      outR <<= 1;
      outR |= (inR >>> (j + i)) & 1;
      outR <<= 1;
      outR |= (inL >>> (j + i)) & 1;
    }
  }

  out[off + 0] = outL >>> 0;
  out[off + 1] = outR >>> 0;
};

exports.pc1 = function pc1(inL, inR, out, off) {
  var outL = 0;
  var outR = 0;

  // 7, 15, 23, 31, 39, 47, 55, 63
  // 6, 14, 22, 30, 39, 47, 55, 63
  // 5, 13, 21, 29, 39, 47, 55, 63
  // 4, 12, 20, 28
  for (var i = 7; i >= 5; i--) {
    for (var j = 0; j <= 24; j += 8) {
      outL <<= 1;
      outL |= (inR >> (j + i)) & 1;
    }
    for (var j = 0; j <= 24; j += 8) {
      outL <<= 1;
      outL |= (inL >> (j + i)) & 1;
    }
  }
  for (var j = 0; j <= 24; j += 8) {
    outL <<= 1;
    outL |= (inR >> (j + i)) & 1;
  }

  // 1, 9, 17, 25, 33, 41, 49, 57
  // 2, 10, 18, 26, 34, 42, 50, 58
  // 3, 11, 19, 27, 35, 43, 51, 59
  // 36, 44, 52, 60
  for (var i = 1; i <= 3; i++) {
    for (var j = 0; j <= 24; j += 8) {
      outR <<= 1;
      outR |= (inR >> (j + i)) & 1;
    }
    for (var j = 0; j <= 24; j += 8) {
      outR <<= 1;
      outR |= (inL >> (j + i)) & 1;
    }
  }
  for (var j = 0; j <= 24; j += 8) {
    outR <<= 1;
    outR |= (inL >> (j + i)) & 1;
  }

  out[off + 0] = outL >>> 0;
  out[off + 1] = outR >>> 0;
};

exports.r28shl = function r28shl(num, shift) {
  return ((num << shift) & 0xfffffff) | (num >>> (28 - shift));
};

var pc2table = [
  // inL => outL
  14, 11, 17, 4, 27, 23, 25, 0,
  13, 22, 7, 18, 5, 9, 16, 24,
  2, 20, 12, 21, 1, 8, 15, 26,

  // inR => outR
  15, 4, 25, 19, 9, 1, 26, 16,
  5, 11, 23, 8, 12, 7, 17, 0,
  22, 3, 10, 14, 6, 20, 27, 24
];

exports.pc2 = function pc2(inL, inR, out, off) {
  var outL = 0;
  var outR = 0;

  var len = pc2table.length >>> 1;
  for (var i = 0; i < len; i++) {
    outL <<= 1;
    outL |= (inL >>> pc2table[i]) & 0x1;
  }
  for (var i = len; i < pc2table.length; i++) {
    outR <<= 1;
    outR |= (inR >>> pc2table[i]) & 0x1;
  }

  out[off + 0] = outL >>> 0;
  out[off + 1] = outR >>> 0;
};

exports.expand = function expand(r, out, off) {
  var outL = 0;
  var outR = 0;

  outL = ((r & 1) << 5) | (r >>> 27);
  for (var i = 23; i >= 15; i -= 4) {
    outL <<= 6;
    outL |= (r >>> i) & 0x3f;
  }
  for (var i = 11; i >= 3; i -= 4) {
    outR |= (r >>> i) & 0x3f;
    outR <<= 6;
  }
  outR |= ((r & 0x1f) << 1) | (r >>> 31);

  out[off + 0] = outL >>> 0;
  out[off + 1] = outR >>> 0;
};

var sTable = [
  14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1,
  3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8,
  4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7,
  15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13,

  15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14,
  9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5,
  0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2,
  5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9,

  10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10,
  1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1,
  13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7,
  11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12,

  7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3,
  1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9,
  10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8,
  15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14,

  2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1,
  8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6,
  4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13,
  15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3,

  12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5,
  0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8,
  9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10,
  7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13,

  4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10,
  3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6,
  1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7,
  10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12,

  13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4,
  10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2,
  7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13,
  0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11
];

exports.substitute = function substitute(inL, inR) {
  var out = 0;
  for (var i = 0; i < 4; i++) {
    var b = (inL >>> (18 - i * 6)) & 0x3f;
    var sb = sTable[i * 0x40 + b];

    out <<= 4;
    out |= sb;
  }
  for (var i = 0; i < 4; i++) {
    var b = (inR >>> (18 - i * 6)) & 0x3f;
    var sb = sTable[4 * 0x40 + i * 0x40 + b];

    out <<= 4;
    out |= sb;
  }
  return out >>> 0;
};

var permuteTable = [
  16, 25, 12, 11, 3, 20, 4, 15, 31, 17, 9, 6, 27, 14, 1, 22,
  30, 24, 8, 18, 0, 5, 29, 23, 13, 19, 2, 26, 10, 21, 28, 7
];

exports.permute = function permute(num) {
  var out = 0;
  for (var i = 0; i < permuteTable.length; i++) {
    out <<= 1;
    out |= (num >>> permuteTable[i]) & 0x1;
  }
  return out >>> 0;
};

exports.padSplit = function padSplit(num, size, group) {
  var str = num.toString(2);
  while (str.length < size)
    str = '0' + str;

  var out = [];
  for (var i = 0; i < size; i += group)
    out.push(str.slice(i, i + group));
  return out.join(' ');
};

},{}],110:[function(require,module,exports){
(function (Buffer){
var generatePrime = require('./lib/generatePrime')
var primes = require('./lib/primes.json')

var DH = require('./lib/dh')

function getDiffieHellman (mod) {
  var prime = new Buffer(primes[mod].prime, 'hex')
  var gen = new Buffer(primes[mod].gen, 'hex')

  return new DH(prime, gen)
}

var ENCODINGS = {
  'binary': true, 'hex': true, 'base64': true
}

function createDiffieHellman (prime, enc, generator, genc) {
  if (Buffer.isBuffer(enc) || ENCODINGS[enc] === undefined) {
    return createDiffieHellman(prime, 'binary', enc, generator)
  }

  enc = enc || 'binary'
  genc = genc || 'binary'
  generator = generator || new Buffer([2])

  if (!Buffer.isBuffer(generator)) {
    generator = new Buffer(generator, genc)
  }

  if (typeof prime === 'number') {
    return new DH(generatePrime(prime, generator), generator, true)
  }

  if (!Buffer.isBuffer(prime)) {
    prime = new Buffer(prime, enc)
  }

  return new DH(prime, generator, true)
}

exports.DiffieHellmanGroup = exports.createDiffieHellmanGroup = exports.getDiffieHellman = getDiffieHellman
exports.createDiffieHellman = exports.DiffieHellman = createDiffieHellman

}).call(this,require("buffer").Buffer)
},{"./lib/dh":111,"./lib/generatePrime":112,"./lib/primes.json":113,"buffer":95}],111:[function(require,module,exports){
(function (Buffer){
var BN = require('bn.js');
var MillerRabin = require('miller-rabin');
var millerRabin = new MillerRabin();
var TWENTYFOUR = new BN(24);
var ELEVEN = new BN(11);
var TEN = new BN(10);
var THREE = new BN(3);
var SEVEN = new BN(7);
var primes = require('./generatePrime');
var randomBytes = require('randombytes');
module.exports = DH;

function setPublicKey(pub, enc) {
  enc = enc || 'utf8';
  if (!Buffer.isBuffer(pub)) {
    pub = new Buffer(pub, enc);
  }
  this._pub = new BN(pub);
  return this;
}

function setPrivateKey(priv, enc) {
  enc = enc || 'utf8';
  if (!Buffer.isBuffer(priv)) {
    priv = new Buffer(priv, enc);
  }
  this._priv = new BN(priv);
  return this;
}

var primeCache = {};
function checkPrime(prime, generator) {
  var gen = generator.toString('hex');
  var hex = [gen, prime.toString(16)].join('_');
  if (hex in primeCache) {
    return primeCache[hex];
  }
  var error = 0;

  if (prime.isEven() ||
    !primes.simpleSieve ||
    !primes.fermatTest(prime) ||
    !millerRabin.test(prime)) {
    //not a prime so +1
    error += 1;

    if (gen === '02' || gen === '05') {
      // we'd be able to check the generator
      // it would fail so +8
      error += 8;
    } else {
      //we wouldn't be able to test the generator
      // so +4
      error += 4;
    }
    primeCache[hex] = error;
    return error;
  }
  if (!millerRabin.test(prime.shrn(1))) {
    //not a safe prime
    error += 2;
  }
  var rem;
  switch (gen) {
    case '02':
      if (prime.mod(TWENTYFOUR).cmp(ELEVEN)) {
        // unsuidable generator
        error += 8;
      }
      break;
    case '05':
      rem = prime.mod(TEN);
      if (rem.cmp(THREE) && rem.cmp(SEVEN)) {
        // prime mod 10 needs to equal 3 or 7
        error += 8;
      }
      break;
    default:
      error += 4;
  }
  primeCache[hex] = error;
  return error;
}

function DH(prime, generator, malleable) {
  this.setGenerator(generator);
  this.__prime = new BN(prime);
  this._prime = BN.mont(this.__prime);
  this._primeLen = prime.length;
  this._pub = undefined;
  this._priv = undefined;
  this._primeCode = undefined;
  if (malleable) {
    this.setPublicKey = setPublicKey;
    this.setPrivateKey = setPrivateKey;
  } else {
    this._primeCode = 8;
  }
}
Object.defineProperty(DH.prototype, 'verifyError', {
  enumerable: true,
  get: function () {
    if (typeof this._primeCode !== 'number') {
      this._primeCode = checkPrime(this.__prime, this.__gen);
    }
    return this._primeCode;
  }
});
DH.prototype.generateKeys = function () {
  if (!this._priv) {
    this._priv = new BN(randomBytes(this._primeLen));
  }
  this._pub = this._gen.toRed(this._prime).redPow(this._priv).fromRed();
  return this.getPublicKey();
};

DH.prototype.computeSecret = function (other) {
  other = new BN(other);
  other = other.toRed(this._prime);
  var secret = other.redPow(this._priv).fromRed();
  var out = new Buffer(secret.toArray());
  var prime = this.getPrime();
  if (out.length < prime.length) {
    var front = new Buffer(prime.length - out.length);
    front.fill(0);
    out = Buffer.concat([front, out]);
  }
  return out;
};

DH.prototype.getPublicKey = function getPublicKey(enc) {
  return formatReturnValue(this._pub, enc);
};

DH.prototype.getPrivateKey = function getPrivateKey(enc) {
  return formatReturnValue(this._priv, enc);
};

DH.prototype.getPrime = function (enc) {
  return formatReturnValue(this.__prime, enc);
};

DH.prototype.getGenerator = function (enc) {
  return formatReturnValue(this._gen, enc);
};

DH.prototype.setGenerator = function (gen, enc) {
  enc = enc || 'utf8';
  if (!Buffer.isBuffer(gen)) {
    gen = new Buffer(gen, enc);
  }
  this.__gen = gen;
  this._gen = new BN(gen);
  return this;
};

function formatReturnValue(bn, enc) {
  var buf = new Buffer(bn.toArray());
  if (!enc) {
    return buf;
  } else {
    return buf.toString(enc);
  }
}

}).call(this,require("buffer").Buffer)
},{"./generatePrime":112,"bn.js":65,"buffer":95,"miller-rabin":143,"randombytes":163}],112:[function(require,module,exports){
var randomBytes = require('randombytes');
module.exports = findPrime;
findPrime.simpleSieve = simpleSieve;
findPrime.fermatTest = fermatTest;
var BN = require('bn.js');
var TWENTYFOUR = new BN(24);
var MillerRabin = require('miller-rabin');
var millerRabin = new MillerRabin();
var ONE = new BN(1);
var TWO = new BN(2);
var FIVE = new BN(5);
var SIXTEEN = new BN(16);
var EIGHT = new BN(8);
var TEN = new BN(10);
var THREE = new BN(3);
var SEVEN = new BN(7);
var ELEVEN = new BN(11);
var FOUR = new BN(4);
var TWELVE = new BN(12);
var primes = null;

function _getPrimes() {
  if (primes !== null)
    return primes;

  var limit = 0x100000;
  var res = [];
  res[0] = 2;
  for (var i = 1, k = 3; k < limit; k += 2) {
    var sqrt = Math.ceil(Math.sqrt(k));
    for (var j = 0; j < i && res[j] <= sqrt; j++)
      if (k % res[j] === 0)
        break;

    if (i !== j && res[j] <= sqrt)
      continue;

    res[i++] = k;
  }
  primes = res;
  return res;
}

function simpleSieve(p) {
  var primes = _getPrimes();

  for (var i = 0; i < primes.length; i++)
    if (p.modn(primes[i]) === 0) {
      if (p.cmpn(primes[i]) === 0) {
        return true;
      } else {
        return false;
      }
    }

  return true;
}

function fermatTest(p) {
  var red = BN.mont(p);
  return TWO.toRed(red).redPow(p.subn(1)).fromRed().cmpn(1) === 0;
}

function findPrime(bits, gen) {
  if (bits < 16) {
    // this is what openssl does
    if (gen === 2 || gen === 5) {
      return new BN([0x8c, 0x7b]);
    } else {
      return new BN([0x8c, 0x27]);
    }
  }
  gen = new BN(gen);

  var num, n2;

  while (true) {
    num = new BN(randomBytes(Math.ceil(bits / 8)));
    while (num.bitLength() > bits) {
      num.ishrn(1);
    }
    if (num.isEven()) {
      num.iadd(ONE);
    }
    if (!num.testn(1)) {
      num.iadd(TWO);
    }
    if (!gen.cmp(TWO)) {
      while (num.mod(TWENTYFOUR).cmp(ELEVEN)) {
        num.iadd(FOUR);
      }
    } else if (!gen.cmp(FIVE)) {
      while (num.mod(TEN).cmp(THREE)) {
        num.iadd(FOUR);
      }
    }
    n2 = num.shrn(1);
    if (simpleSieve(n2) && simpleSieve(num) &&
      fermatTest(n2) && fermatTest(num) &&
      millerRabin.test(n2) && millerRabin.test(num)) {
      return num;
    }
  }

}

},{"bn.js":65,"miller-rabin":143,"randombytes":163}],113:[function(require,module,exports){
module.exports={
    "modp1": {
        "gen": "02",
        "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a63a3620ffffffffffffffff"
    },
    "modp2": {
        "gen": "02",
        "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece65381ffffffffffffffff"
    },
    "modp5": {
        "gen": "02",
        "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca237327ffffffffffffffff"
    },
    "modp14": {
        "gen": "02",
        "prime": "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"
    },
    "modp15": {
        "gen": "02",
        "prime": "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"
    },
    "modp16": {
        "gen": "02",
        "prime": "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"
    },
    "modp17": {
        "gen": "02",
        "prime": "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"
    },
    "modp18": {
        "gen": "02",
        "prime": "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"
    }
}
},{}],114:[function(require,module,exports){
'use strict';

var elliptic = exports;

elliptic.version = require('../package.json').version;
elliptic.utils = require('./elliptic/utils');
elliptic.rand = require('brorand');
elliptic.hmacDRBG = require('./elliptic/hmac-drbg');
elliptic.curve = require('./elliptic/curve');
elliptic.curves = require('./elliptic/curves');

// Protocols
elliptic.ec = require('./elliptic/ec');

},{"../package.json":134,"./elliptic/curve":117,"./elliptic/curves":120,"./elliptic/ec":121,"./elliptic/hmac-drbg":124,"./elliptic/utils":126,"brorand":127}],115:[function(require,module,exports){
'use strict';

var bn = require('bn.js');
var elliptic = require('../../elliptic');

var getNAF = elliptic.utils.getNAF;
var getJSF = elliptic.utils.getJSF;
var assert = elliptic.utils.assert;

function BaseCurve(type, conf) {
  this.type = type;
  this.p = new bn(conf.p, 16);

  // Use Montgomery, when there is no fast reduction for the prime
  this.red = conf.prime ? bn.red(conf.prime) : bn.mont(this.p);

  // Useful for many curves
  this.zero = new bn(0).toRed(this.red);
  this.one = new bn(1).toRed(this.red);
  this.two = new bn(2).toRed(this.red);

  // Curve configuration, optional
  this.n = conf.n && new bn(conf.n, 16);
  this.g = conf.g && this.pointFromJSON(conf.g, conf.gRed);

  // Temporary arrays
  this._wnafT1 = new Array(4);
  this._wnafT2 = new Array(4);
  this._wnafT3 = new Array(4);
  this._wnafT4 = new Array(4);
}
module.exports = BaseCurve;

BaseCurve.prototype.point = function point() {
  throw new Error('Not implemented');
};

BaseCurve.prototype.validate = function validate() {
  throw new Error('Not implemented');
};

BaseCurve.prototype._fixedNafMul = function _fixedNafMul(p, k) {
  var doubles = p._getDoubles();

  var naf = getNAF(k, 1);
  var I = (1 << (doubles.step + 1)) - (doubles.step % 2 === 0 ? 2 : 1);
  I /= 3;

  // Translate into more windowed form
  var repr = [];
  for (var j = 0; j < naf.length; j += doubles.step) {
    var nafW = 0;
    for (var k = j + doubles.step - 1; k >= j; k--)
      nafW = (nafW << 1) + naf[k];
    repr.push(nafW);
  }

  var a = this.jpoint(null, null, null);
  var b = this.jpoint(null, null, null);
  for (var i = I; i > 0; i--) {
    for (var j = 0; j < repr.length; j++) {
      var nafW = repr[j];
      if (nafW === i)
        b = b.mixedAdd(doubles.points[j]);
      else if (nafW === -i)
        b = b.mixedAdd(doubles.points[j].neg());
    }
    a = a.add(b);
  }
  return a.toP();
};

BaseCurve.prototype._wnafMul = function _wnafMul(p, k) {
  var w = 4;

  // Precompute window
  var nafPoints = p._getNAFPoints(w);
  w = nafPoints.wnd;
  var wnd = nafPoints.points;

  // Get NAF form
  var naf = getNAF(k, w);

  // Add `this`*(N+1) for every w-NAF index
  var acc = this.jpoint(null, null, null);
  for (var i = naf.length - 1; i >= 0; i--) {
    // Count zeroes
    for (var k = 0; i >= 0 && naf[i] === 0; i--)
      k++;
    if (i >= 0)
      k++;
    acc = acc.dblp(k);

    if (i < 0)
      break;
    var z = naf[i];
    assert(z !== 0);
    if (p.type === 'affine') {
      // J +- P
      if (z > 0)
        acc = acc.mixedAdd(wnd[(z - 1) >> 1]);
      else
        acc = acc.mixedAdd(wnd[(-z - 1) >> 1].neg());
    } else {
      // J +- J
      if (z > 0)
        acc = acc.add(wnd[(z - 1) >> 1]);
      else
        acc = acc.add(wnd[(-z - 1) >> 1].neg());
    }
  }
  return p.type === 'affine' ? acc.toP() : acc;
};

BaseCurve.prototype._wnafMulAdd = function _wnafMulAdd(defW,
                                                       points,
                                                       coeffs,
                                                       len) {
  var wndWidth = this._wnafT1;
  var wnd = this._wnafT2;
  var naf = this._wnafT3;

  // Fill all arrays
  var max = 0;
  for (var i = 0; i < len; i++) {
    var p = points[i];
    var nafPoints = p._getNAFPoints(defW);
    wndWidth[i] = nafPoints.wnd;
    wnd[i] = nafPoints.points;
  }

  // Comb small window NAFs
  for (var i = len - 1; i >= 1; i -= 2) {
    var a = i - 1;
    var b = i;
    if (wndWidth[a] !== 1 || wndWidth[b] !== 1) {
      naf[a] = getNAF(coeffs[a], wndWidth[a]);
      naf[b] = getNAF(coeffs[b], wndWidth[b]);
      max = Math.max(naf[a].length, max);
      max = Math.max(naf[b].length, max);
      continue;
    }

    var comb = [
      points[a], /* 1 */
      null, /* 3 */
      null, /* 5 */
      points[b] /* 7 */
    ];

    // Try to avoid Projective points, if possible
    if (points[a].y.cmp(points[b].y) === 0) {
      comb[1] = points[a].add(points[b]);
      comb[2] = points[a].toJ().mixedAdd(points[b].neg());
    } else if (points[a].y.cmp(points[b].y.redNeg()) === 0) {
      comb[1] = points[a].toJ().mixedAdd(points[b]);
      comb[2] = points[a].add(points[b].neg());
    } else {
      comb[1] = points[a].toJ().mixedAdd(points[b]);
      comb[2] = points[a].toJ().mixedAdd(points[b].neg());
    }

    var index = [
      -3, /* -1 -1 */
      -1, /* -1 0 */
      -5, /* -1 1 */
      -7, /* 0 -1 */
      0, /* 0 0 */
      7, /* 0 1 */
      5, /* 1 -1 */
      1, /* 1 0 */
      3  /* 1 1 */
    ];

    var jsf = getJSF(coeffs[a], coeffs[b]);
    max = Math.max(jsf[0].length, max);
    naf[a] = new Array(max);
    naf[b] = new Array(max);
    for (var j = 0; j < max; j++) {
      var ja = jsf[0][j] | 0;
      var jb = jsf[1][j] | 0;

      naf[a][j] = index[(ja + 1) * 3 + (jb + 1)];
      naf[b][j] = 0;
      wnd[a] = comb;
    }
  }

  var acc = this.jpoint(null, null, null);
  var tmp = this._wnafT4;
  for (var i = max; i >= 0; i--) {
    var k = 0;

    while (i >= 0) {
      var zero = true;
      for (var j = 0; j < len; j++) {
        tmp[j] = naf[j][i] | 0;
        if (tmp[j] !== 0)
          zero = false;
      }
      if (!zero)
        break;
      k++;
      i--;
    }
    if (i >= 0)
      k++;
    acc = acc.dblp(k);
    if (i < 0)
      break;

    for (var j = 0; j < len; j++) {
      var z = tmp[j];
      var p;
      if (z === 0)
        continue;
      else if (z > 0)
        p = wnd[j][(z - 1) >> 1];
      else if (z < 0)
        p = wnd[j][(-z - 1) >> 1].neg();

      if (p.type === 'affine')
        acc = acc.mixedAdd(p);
      else
        acc = acc.add(p);
    }
  }
  // Zeroify references
  for (var i = 0; i < len; i++)
    wnd[i] = null;
  return acc.toP();
};

function BasePoint(curve, type) {
  this.curve = curve;
  this.type = type;
  this.precomputed = null;
}
BaseCurve.BasePoint = BasePoint;

BasePoint.prototype.validate = function validate() {
  return this.curve.validate(this);
};

BasePoint.prototype.precompute = function precompute(power) {
  if (this.precomputed)
    return this;

  var precomputed = {
    doubles: null,
    naf: null,
    beta: null
  };
  precomputed.naf = this._getNAFPoints(8);
  precomputed.doubles = this._getDoubles(4, power);
  precomputed.beta = this._getBeta();
  this.precomputed = precomputed;

  return this;
};

BasePoint.prototype._getDoubles = function _getDoubles(step, power) {
  if (this.precomputed && this.precomputed.doubles)
    return this.precomputed.doubles;

  var doubles = [ this ];
  var acc = this;
  for (var i = 0; i < power; i += step) {
    for (var j = 0; j < step; j++)
      acc = acc.dbl();
    doubles.push(acc);
  }
  return {
    step: step,
    points: doubles
  };
};

BasePoint.prototype._getNAFPoints = function _getNAFPoints(wnd) {
  if (this.precomputed && this.precomputed.naf)
    return this.precomputed.naf;

  var res = [ this ];
  var max = (1 << wnd) - 1;
  var dbl = max === 1 ? null : this.dbl();
  for (var i = 1; i < max; i++)
    res[i] = res[i - 1].add(dbl);
  return {
    wnd: wnd,
    points: res
  };
};

BasePoint.prototype._getBeta = function _getBeta() {
  return null;
};

BasePoint.prototype.dblp = function dblp(k) {
  var r = this;
  for (var i = 0; i < k; i++)
    r = r.dbl();
  return r;
};

},{"../../elliptic":114,"bn.js":65}],116:[function(require,module,exports){
'use strict';

var curve = require('../curve');
var elliptic = require('../../elliptic');
var bn = require('bn.js');
var inherits = require('inherits');
var Base = curve.base;

var assert = elliptic.utils.assert;

function EdwardsCurve(conf) {
  // NOTE: Important as we are creating point in Base.call()
  this.twisted = (conf.a | 0) !== 1;
  this.mOneA = this.twisted && (conf.a | 0) === -1;
  this.extended = this.mOneA;

  Base.call(this, 'edwards', conf);

  this.a = new bn(conf.a, 16).mod(this.red.m).toRed(this.red);
  this.c = new bn(conf.c, 16).toRed(this.red);
  this.c2 = this.c.redSqr();
  this.d = new bn(conf.d, 16).toRed(this.red);
  this.dd = this.d.redAdd(this.d);

  assert(!this.twisted || this.c.fromRed().cmpn(1) === 0);
  this.oneC = (conf.c | 0) === 1;
}
inherits(EdwardsCurve, Base);
module.exports = EdwardsCurve;

EdwardsCurve.prototype._mulA = function _mulA(num) {
  if (this.mOneA)
    return num.redNeg();
  else
    return this.a.redMul(num);
};

EdwardsCurve.prototype._mulC = function _mulC(num) {
  if (this.oneC)
    return num;
  else
    return this.c.redMul(num);
};

// Just for compatibility with Short curve
EdwardsCurve.prototype.jpoint = function jpoint(x, y, z, t) {
  return this.point(x, y, z, t);
};

EdwardsCurve.prototype.pointFromX = function pointFromX(odd, x) {
  x = new bn(x, 16);
  if (!x.red)
    x = x.toRed(this.red);

  var x2 = x.redSqr();
  var rhs = this.c2.redSub(this.a.redMul(x2));
  var lhs = this.one.redSub(this.c2.redMul(this.d).redMul(x2));

  var y = rhs.redMul(lhs.redInvm()).redSqrt();
  var isOdd = y.fromRed().isOdd();
  if (odd && !isOdd || !odd && isOdd)
    y = y.redNeg();

  return this.point(x, y, curve.one);
};

EdwardsCurve.prototype.validate = function validate(point) {
  if (point.isInfinity())
    return true;

  // Curve: A * X^2 + Y^2 = C^2 * (1 + D * X^2 * Y^2)
  point.normalize();

  var x2 = point.x.redSqr();
  var y2 = point.y.redSqr();
  var lhs = x2.redMul(this.a).redAdd(y2);
  var rhs = this.c2.redMul(this.one.redAdd(this.d.redMul(x2).redMul(y2)));

  return lhs.cmp(rhs) === 0;
};

function Point(curve, x, y, z, t) {
  Base.BasePoint.call(this, curve, 'projective');
  if (x === null && y === null && z === null) {
    this.x = this.curve.zero;
    this.y = this.curve.one;
    this.z = this.curve.one;
    this.t = this.curve.zero;
    this.zOne = true;
  } else {
    this.x = new bn(x, 16);
    this.y = new bn(y, 16);
    this.z = z ? new bn(z, 16) : this.curve.one;
    this.t = t && new bn(t, 16);
    if (!this.x.red)
      this.x = this.x.toRed(this.curve.red);
    if (!this.y.red)
      this.y = this.y.toRed(this.curve.red);
    if (!this.z.red)
      this.z = this.z.toRed(this.curve.red);
    if (this.t && !this.t.red)
      this.t = this.t.toRed(this.curve.red);
    this.zOne = this.z === this.curve.one;

    // Use extended coordinates
    if (this.curve.extended && !this.t) {
      this.t = this.x.redMul(this.y);
      if (!this.zOne)
        this.t = this.t.redMul(this.z.redInvm());
    }
  }
}
inherits(Point, Base.BasePoint);

EdwardsCurve.prototype.pointFromJSON = function pointFromJSON(obj) {
  return Point.fromJSON(this, obj);
};

EdwardsCurve.prototype.point = function point(x, y, z, t) {
  return new Point(this, x, y, z, t);
};

Point.fromJSON = function fromJSON(curve, obj) {
  return new Point(curve, obj[0], obj[1], obj[2]);
};

Point.prototype.inspect = function inspect() {
  if (this.isInfinity())
    return '<EC Point Infinity>';
  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
      ' y: ' + this.y.fromRed().toString(16, 2) +
      ' z: ' + this.z.fromRed().toString(16, 2) + '>';
};

Point.prototype.isInfinity = function isInfinity() {
  // XXX This code assumes that zero is always zero in red
  return this.x.cmpn(0) === 0 &&
         this.y.cmp(this.z) === 0;
};

Point.prototype._extDbl = function _extDbl() {
  // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
  //     #doubling-dbl-2008-hwcd
  // 4M + 4S

  // A = X1^2
  var a = this.x.redSqr();
  // B = Y1^2
  var b = this.y.redSqr();
  // C = 2 * Z1^2
  var c = this.z.redSqr();
  c = c.redIAdd(c);
  // D = a * A
  var d = this.curve._mulA(a);
  // E = (X1 + Y1)^2 - A - B
  var e = this.x.redAdd(this.y).redSqr().redISub(a).redISub(b);
  // G = D + B
  var g = d.redAdd(b);
  // F = G - C
  var f = g.redSub(c);
  // H = D - B
  var h = d.redSub(b);
  // X3 = E * F
  var nx = e.redMul(f);
  // Y3 = G * H
  var ny = g.redMul(h);
  // T3 = E * H
  var nt = e.redMul(h);
  // Z3 = F * G
  var nz = f.redMul(g);
  return this.curve.point(nx, ny, nz, nt);
};

Point.prototype._projDbl = function _projDbl() {
  // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html
  //     #doubling-dbl-2008-bbjlp
  //     #doubling-dbl-2007-bl
  // and others
  // Generally 3M + 4S or 2M + 4S

  // B = (X1 + Y1)^2
  var b = this.x.redAdd(this.y).redSqr();
  // C = X1^2
  var c = this.x.redSqr();
  // D = Y1^2
  var d = this.y.redSqr();

  var nx;
  var ny;
  var nz;
  if (this.curve.twisted) {
    // E = a * C
    var e = this.curve._mulA(c);
    // F = E + D
    var f = e.redAdd(d);
    if (this.zOne) {
      // X3 = (B - C - D) * (F - 2)
      nx = b.redSub(c).redSub(d).redMul(f.redSub(this.curve.two));
      // Y3 = F * (E - D)
      ny = f.redMul(e.redSub(d));
      // Z3 = F^2 - 2 * F
      nz = f.redSqr().redSub(f).redSub(f);
    } else {
      // H = Z1^2
      var h = this.z.redSqr();
      // J = F - 2 * H
      var j = f.redSub(h).redISub(h);
      // X3 = (B-C-D)*J
      nx = b.redSub(c).redISub(d).redMul(j);
      // Y3 = F * (E - D)
      ny = f.redMul(e.redSub(d));
      // Z3 = F * J
      nz = f.redMul(j);
    }
  } else {
    // E = C + D
    var e = c.redAdd(d);
    // H = (c * Z1)^2
    var h = this.curve._mulC(this.c.redMul(this.z)).redSqr();
    // J = E - 2 * H
    var j = e.redSub(h).redSub(h);
    // X3 = c * (B - E) * J
    nx = this.curve._mulC(b.redISub(e)).redMul(j);
    // Y3 = c * E * (C - D)
    ny = this.curve._mulC(e).redMul(c.redISub(d));
    // Z3 = E * J
    nz = e.redMul(j);
  }
  return this.curve.point(nx, ny, nz);
};

Point.prototype.dbl = function dbl() {
  if (this.isInfinity())
    return this;

  // Double in extended coordinates
  if (this.curve.extended)
    return this._extDbl();
  else
    return this._projDbl();
};

Point.prototype._extAdd = function _extAdd(p) {
  // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
  //     #addition-add-2008-hwcd-3
  // 8M

  // A = (Y1 - X1) * (Y2 - X2)
  var a = this.y.redSub(this.x).redMul(p.y.redSub(p.x));
  // B = (Y1 + X1) * (Y2 + X2)
  var b = this.y.redAdd(this.x).redMul(p.y.redAdd(p.x));
  // C = T1 * k * T2
  var c = this.t.redMul(this.curve.dd).redMul(p.t);
  // D = Z1 * 2 * Z2
  var d = this.z.redMul(p.z.redAdd(p.z));
  // E = B - A
  var e = b.redSub(a);
  // F = D - C
  var f = d.redSub(c);
  // G = D + C
  var g = d.redAdd(c);
  // H = B + A
  var h = b.redAdd(a);
  // X3 = E * F
  var nx = e.redMul(f);
  // Y3 = G * H
  var ny = g.redMul(h);
  // T3 = E * H
  var nt = e.redMul(h);
  // Z3 = F * G
  var nz = f.redMul(g);
  return this.curve.point(nx, ny, nz, nt);
};

Point.prototype._projAdd = function _projAdd(p) {
  // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html
  //     #addition-add-2008-bbjlp
  //     #addition-add-2007-bl
  // 10M + 1S

  // A = Z1 * Z2
  var a = this.z.redMul(p.z);
  // B = A^2
  var b = a.redSqr();
  // C = X1 * X2
  var c = this.x.redMul(p.x);
  // D = Y1 * Y2
  var d = this.y.redMul(p.y);
  // E = d * C * D
  var e = this.curve.d.redMul(c).redMul(d);
  // F = B - E
  var f = b.redSub(e);
  // G = B + E
  var g = b.redAdd(e);
  // X3 = A * F * ((X1 + Y1) * (X2 + Y2) - C - D)
  var tmp = this.x.redAdd(this.y).redMul(p.x.redAdd(p.y)).redISub(c).redISub(d);
  var nx = a.redMul(f).redMul(tmp);
  var ny;
  var nz;
  if (this.curve.twisted) {
    // Y3 = A * G * (D - a * C)
    ny = a.redMul(g).redMul(d.redSub(this.curve._mulA(c)));
    // Z3 = F * G
    nz = f.redMul(g);
  } else {
    // Y3 = A * G * (D - C)
    ny = a.redMul(g).redMul(d.redSub(c));
    // Z3 = c * F * G
    nz = this.curve._mulC(f).redMul(g);
  }
  return this.curve.point(nx, ny, nz);
};

Point.prototype.add = function add(p) {
  if (this.isInfinity())
    return p;
  if (p.isInfinity())
    return this;

  if (this.curve.extended)
    return this._extAdd(p);
  else
    return this._projAdd(p);
};

Point.prototype.mul = function mul(k) {
  if (this.precomputed && this.precomputed.doubles)
    return this.curve._fixedNafMul(this, k);
  else
    return this.curve._wnafMul(this, k);
};

Point.prototype.mulAdd = function mulAdd(k1, p, k2) {
  return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2);
};

Point.prototype.normalize = function normalize() {
  if (this.zOne)
    return this;

  // Normalize coordinates
  var zi = this.z.redInvm();
  this.x = this.x.redMul(zi);
  this.y = this.y.redMul(zi);
  if (this.t)
    this.t = this.t.redMul(zi);
  this.z = this.curve.one;
  this.zOne = true;
  return this;
};

Point.prototype.neg = function neg() {
  return this.curve.point(this.x.redNeg(),
                          this.y,
                          this.z,
                          this.t && this.t.redNeg());
};

Point.prototype.getX = function getX() {
  this.normalize();
  return this.x.fromRed();
};

Point.prototype.getY = function getY() {
  this.normalize();
  return this.y.fromRed();
};

// Compatibility with BaseCurve
Point.prototype.toP = Point.prototype.normalize;
Point.prototype.mixedAdd = Point.prototype.add;

},{"../../elliptic":114,"../curve":117,"bn.js":65,"inherits":139}],117:[function(require,module,exports){
'use strict';

var curve = exports;

curve.base = require('./base');
curve.short = require('./short');
curve.mont = require('./mont');
curve.edwards = require('./edwards');

},{"./base":115,"./edwards":116,"./mont":118,"./short":119}],118:[function(require,module,exports){
'use strict';

var curve = require('../curve');
var bn = require('bn.js');
var inherits = require('inherits');
var Base = curve.base;

function MontCurve(conf) {
  Base.call(this, 'mont', conf);

  this.a = new bn(conf.a, 16).toRed(this.red);
  this.b = new bn(conf.b, 16).toRed(this.red);
  this.i4 = new bn(4).toRed(this.red).redInvm();
  this.two = new bn(2).toRed(this.red);
  this.a24 = this.i4.redMul(this.a.redAdd(this.two));
}
inherits(MontCurve, Base);
module.exports = MontCurve;

MontCurve.prototype.validate = function validate(point) {
  var x = point.normalize().x;
  var x2 = x.redSqr();
  var rhs = x2.redMul(x).redAdd(x2.redMul(this.a)).redAdd(x);
  var y = rhs.redSqrt();

  return y.redSqr().cmp(rhs) === 0;
};

function Point(curve, x, z) {
  Base.BasePoint.call(this, curve, 'projective');
  if (x === null && z === null) {
    this.x = this.curve.one;
    this.z = this.curve.zero;
  } else {
    this.x = new bn(x, 16);
    this.z = new bn(z, 16);
    if (!this.x.red)
      this.x = this.x.toRed(this.curve.red);
    if (!this.z.red)
      this.z = this.z.toRed(this.curve.red);
  }
}
inherits(Point, Base.BasePoint);

MontCurve.prototype.point = function point(x, z) {
  return new Point(this, x, z);
};

MontCurve.prototype.pointFromJSON = function pointFromJSON(obj) {
  return Point.fromJSON(this, obj);
};

Point.prototype.precompute = function precompute() {
  // No-op
};

Point.fromJSON = function fromJSON(curve, obj) {
  return new Point(curve, obj[0], obj[1] || curve.one);
};

Point.prototype.inspect = function inspect() {
  if (this.isInfinity())
    return '<EC Point Infinity>';
  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
      ' z: ' + this.z.fromRed().toString(16, 2) + '>';
};

Point.prototype.isInfinity = function isInfinity() {
  // XXX This code assumes that zero is always zero in red
  return this.z.cmpn(0) === 0;
};

Point.prototype.dbl = function dbl() {
  // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#doubling-dbl-1987-m-3
  // 2M + 2S + 4A

  // A = X1 + Z1
  var a = this.x.redAdd(this.z);
  // AA = A^2
  var aa = a.redSqr();
  // B = X1 - Z1
  var b = this.x.redSub(this.z);
  // BB = B^2
  var bb = b.redSqr();
  // C = AA - BB
  var c = aa.redSub(bb);
  // X3 = AA * BB
  var nx = aa.redMul(bb);
  // Z3 = C * (BB + A24 * C)
  var nz = c.redMul(bb.redAdd(this.curve.a24.redMul(c)));
  return this.curve.point(nx, nz);
};

Point.prototype.add = function add() {
  throw new Error('Not supported on Montgomery curve');
};

Point.prototype.diffAdd = function diffAdd(p, diff) {
  // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#diffadd-dadd-1987-m-3
  // 4M + 2S + 6A

  // A = X2 + Z2
  var a = this.x.redAdd(this.z);
  // B = X2 - Z2
  var b = this.x.redSub(this.z);
  // C = X3 + Z3
  var c = p.x.redAdd(p.z);
  // D = X3 - Z3
  var d = p.x.redSub(p.z);
  // DA = D * A
  var da = d.redMul(a);
  // CB = C * B
  var cb = c.redMul(b);
  // X5 = Z1 * (DA + CB)^2
  var nx = diff.z.redMul(da.redAdd(cb).redSqr());
  // Z5 = X1 * (DA - CB)^2
  var nz = diff.x.redMul(da.redISub(cb).redSqr());
  return this.curve.point(nx, nz);
};

Point.prototype.mul = function mul(k) {
  var t = k.clone();
  var a = this; // (N / 2) * Q + Q
  var b = this.curve.point(null, null); // (N / 2) * Q
  var c = this; // Q

  for (var bits = []; t.cmpn(0) !== 0; t.ishrn(1))
    bits.push(t.andln(1));

  for (var i = bits.length - 1; i >= 0; i--) {
    if (bits[i] === 0) {
      // N * Q + Q = ((N / 2) * Q + Q)) + (N / 2) * Q
      a = a.diffAdd(b, c);
      // N * Q = 2 * ((N / 2) * Q + Q))
      b = b.dbl();
    } else {
      // N * Q = ((N / 2) * Q + Q) + ((N / 2) * Q)
      b = a.diffAdd(b, c);
      // N * Q + Q = 2 * ((N / 2) * Q + Q)
      a = a.dbl();
    }
  }
  return b;
};

Point.prototype.mulAdd = function mulAdd() {
  throw new Error('Not supported on Montgomery curve');
};

Point.prototype.normalize = function normalize() {
  this.x = this.x.redMul(this.z.redInvm());
  this.z = this.curve.one;
  return this;
};

Point.prototype.getX = function getX() {
  // Normalize coordinates
  this.normalize();

  return this.x.fromRed();
};

},{"../curve":117,"bn.js":65,"inherits":139}],119:[function(require,module,exports){
'use strict';

var curve = require('../curve');
var elliptic = require('../../elliptic');
var bn = require('bn.js');
var inherits = require('inherits');
var Base = curve.base;

var assert = elliptic.utils.assert;

function ShortCurve(conf) {
  Base.call(this, 'short', conf);

  this.a = new bn(conf.a, 16).toRed(this.red);
  this.b = new bn(conf.b, 16).toRed(this.red);
  this.tinv = this.two.redInvm();

  this.zeroA = this.a.fromRed().cmpn(0) === 0;
  this.threeA = this.a.fromRed().sub(this.p).cmpn(-3) === 0;

  // If the curve is endomorphic, precalculate beta and lambda
  this.endo = this._getEndomorphism(conf);
  this._endoWnafT1 = new Array(4);
  this._endoWnafT2 = new Array(4);
}
inherits(ShortCurve, Base);
module.exports = ShortCurve;

ShortCurve.prototype._getEndomorphism = function _getEndomorphism(conf) {
  // No efficient endomorphism
  if (!this.zeroA || !this.g || !this.n || this.p.modn(3) !== 1)
    return;

  // Compute beta and lambda, that lambda * P = (beta * Px; Py)
  var beta;
  var lambda;
  if (conf.beta) {
    beta = new bn(conf.beta, 16).toRed(this.red);
  } else {
    var betas = this._getEndoRoots(this.p);
    // Choose the smallest beta
    beta = betas[0].cmp(betas[1]) < 0 ? betas[0] : betas[1];
    beta = beta.toRed(this.red);
  }
  if (conf.lambda) {
    lambda = new bn(conf.lambda, 16);
  } else {
    // Choose the lambda that is matching selected beta
    var lambdas = this._getEndoRoots(this.n);
    if (this.g.mul(lambdas[0]).x.cmp(this.g.x.redMul(beta)) === 0) {
      lambda = lambdas[0];
    } else {
      lambda = lambdas[1];
      assert(this.g.mul(lambda).x.cmp(this.g.x.redMul(beta)) === 0);
    }
  }

  // Get basis vectors, used for balanced length-two representation
  var basis;
  if (conf.basis) {
    basis = conf.basis.map(function(vec) {
      return {
        a: new bn(vec.a, 16),
        b: new bn(vec.b, 16)
      };
    });
  } else {
    basis = this._getEndoBasis(lambda);
  }

  return {
    beta: beta,
    lambda: lambda,
    basis: basis
  };
};

ShortCurve.prototype._getEndoRoots = function _getEndoRoots(num) {
  // Find roots of for x^2 + x + 1 in F
  // Root = (-1 +- Sqrt(-3)) / 2
  //
  var red = num === this.p ? this.red : bn.mont(num);
  var tinv = new bn(2).toRed(red).redInvm();
  var ntinv = tinv.redNeg();

  var s = new bn(3).toRed(red).redNeg().redSqrt().redMul(tinv);

  var l1 = ntinv.redAdd(s).fromRed();
  var l2 = ntinv.redSub(s).fromRed();
  return [ l1, l2 ];
};

ShortCurve.prototype._getEndoBasis = function _getEndoBasis(lambda) {
  // aprxSqrt >= sqrt(this.n)
  var aprxSqrt = this.n.shrn(Math.floor(this.n.bitLength() / 2));

  // 3.74
  // Run EGCD, until r(L + 1) < aprxSqrt
  var u = lambda;
  var v = this.n.clone();
  var x1 = new bn(1);
  var y1 = new bn(0);
  var x2 = new bn(0);
  var y2 = new bn(1);

  // NOTE: all vectors are roots of: a + b * lambda = 0 (mod n)
  var a0;
  var b0;
  // First vector
  var a1;
  var b1;
  // Second vector
  var a2;
  var b2;

  var prevR;
  var i = 0;
  var r;
  var x;
  while (u.cmpn(0) !== 0) {
    var q = v.div(u);
    r = v.sub(q.mul(u));
    x = x2.sub(q.mul(x1));
    var y = y2.sub(q.mul(y1));

    if (!a1 && r.cmp(aprxSqrt) < 0) {
      a0 = prevR.neg();
      b0 = x1;
      a1 = r.neg();
      b1 = x;
    } else if (a1 && ++i === 2) {
      break;
    }
    prevR = r;

    v = u;
    u = r;
    x2 = x1;
    x1 = x;
    y2 = y1;
    y1 = y;
  }
  a2 = r.neg();
  b2 = x;

  var len1 = a1.sqr().add(b1.sqr());
  var len2 = a2.sqr().add(b2.sqr());
  if (len2.cmp(len1) >= 0) {
    a2 = a0;
    b2 = b0;
  }

  // Normalize signs
  if (a1.sign) {
    a1 = a1.neg();
    b1 = b1.neg();
  }
  if (a2.sign) {
    a2 = a2.neg();
    b2 = b2.neg();
  }

  return [
    { a: a1, b: b1 },
    { a: a2, b: b2 }
  ];
};

ShortCurve.prototype._endoSplit = function _endoSplit(k) {
  var basis = this.endo.basis;
  var v1 = basis[0];
  var v2 = basis[1];

  var c1 = v2.b.mul(k).divRound(this.n);
  var c2 = v1.b.neg().mul(k).divRound(this.n);

  var p1 = c1.mul(v1.a);
  var p2 = c2.mul(v2.a);
  var q1 = c1.mul(v1.b);
  var q2 = c2.mul(v2.b);

  // Calculate answer
  var k1 = k.sub(p1).sub(p2);
  var k2 = q1.add(q2).neg();
  return { k1: k1, k2: k2 };
};

ShortCurve.prototype.pointFromX = function pointFromX(odd, x) {
  x = new bn(x, 16);
  if (!x.red)
    x = x.toRed(this.red);

  var y2 = x.redSqr().redMul(x).redIAdd(x.redMul(this.a)).redIAdd(this.b);
  var y = y2.redSqrt();

  // XXX Is there any way to tell if the number is odd without converting it
  // to non-red form?
  var isOdd = y.fromRed().isOdd();
  if (odd && !isOdd || !odd && isOdd)
    y = y.redNeg();

  return this.point(x, y);
};

ShortCurve.prototype.validate = function validate(point) {
  if (point.inf)
    return true;

  var x = point.x;
  var y = point.y;

  var ax = this.a.redMul(x);
  var rhs = x.redSqr().redMul(x).redIAdd(ax).redIAdd(this.b);
  return y.redSqr().redISub(rhs).cmpn(0) === 0;
};

ShortCurve.prototype._endoWnafMulAdd =
    function _endoWnafMulAdd(points, coeffs) {
  var npoints = this._endoWnafT1;
  var ncoeffs = this._endoWnafT2;
  for (var i = 0; i < points.length; i++) {
    var split = this._endoSplit(coeffs[i]);
    var p = points[i];
    var beta = p._getBeta();

    if (split.k1.sign) {
      split.k1.sign = !split.k1.sign;
      p = p.neg(true);
    }
    if (split.k2.sign) {
      split.k2.sign = !split.k2.sign;
      beta = beta.neg(true);
    }

    npoints[i * 2] = p;
    npoints[i * 2 + 1] = beta;
    ncoeffs[i * 2] = split.k1;
    ncoeffs[i * 2 + 1] = split.k2;
  }
  var res = this._wnafMulAdd(1, npoints, ncoeffs, i * 2);

  // Clean-up references to points and coefficients
  for (var j = 0; j < i * 2; j++) {
    npoints[j] = null;
    ncoeffs[j] = null;
  }
  return res;
};

function Point(curve, x, y, isRed) {
  Base.BasePoint.call(this, curve, 'affine');
  if (x === null && y === null) {
    this.x = null;
    this.y = null;
    this.inf = true;
  } else {
    this.x = new bn(x, 16);
    this.y = new bn(y, 16);
    // Force redgomery representation when loading from JSON
    if (isRed) {
      this.x.forceRed(this.curve.red);
      this.y.forceRed(this.curve.red);
    }
    if (!this.x.red)
      this.x = this.x.toRed(this.curve.red);
    if (!this.y.red)
      this.y = this.y.toRed(this.curve.red);
    this.inf = false;
  }
}
inherits(Point, Base.BasePoint);

ShortCurve.prototype.point = function point(x, y, isRed) {
  return new Point(this, x, y, isRed);
};

ShortCurve.prototype.pointFromJSON = function pointFromJSON(obj, red) {
  return Point.fromJSON(this, obj, red);
};

Point.prototype._getBeta = function _getBeta() {
  if (!this.curve.endo)
    return;

  var pre = this.precomputed;
  if (pre && pre.beta)
    return pre.beta;

  var beta = this.curve.point(this.x.redMul(this.curve.endo.beta), this.y);
  if (pre) {
    var curve = this.curve;
    var endoMul = function(p) {
      return curve.point(p.x.redMul(curve.endo.beta), p.y);
    };
    pre.beta = beta;
    beta.precomputed = {
      beta: null,
      naf: pre.naf && {
        wnd: pre.naf.wnd,
        points: pre.naf.points.map(endoMul)
      },
      doubles: pre.doubles && {
        step: pre.doubles.step,
        points: pre.doubles.points.map(endoMul)
      }
    };
  }
  return beta;
};

Point.prototype.toJSON = function toJSON() {
  if (!this.precomputed)
    return [ this.x, this.y ];

  return [ this.x, this.y, this.precomputed && {
    doubles: this.precomputed.doubles && {
      step: this.precomputed.doubles.step,
      points: this.precomputed.doubles.points.slice(1)
    },
    naf: this.precomputed.naf && {
      wnd: this.precomputed.naf.wnd,
      points: this.precomputed.naf.points.slice(1)
    }
  } ];
};

Point.fromJSON = function fromJSON(curve, obj, red) {
  if (typeof obj === 'string')
    obj = JSON.parse(obj);
  var res = curve.point(obj[0], obj[1], red);
  if (!obj[2])
    return res;

  function obj2point(obj) {
    return curve.point(obj[0], obj[1], red);
  }

  var pre = obj[2];
  res.precomputed = {
    beta: null,
    doubles: pre.doubles && {
      step: pre.doubles.step,
      points: [ res ].concat(pre.doubles.points.map(obj2point))
    },
    naf: pre.naf && {
      wnd: pre.naf.wnd,
      points: [ res ].concat(pre.naf.points.map(obj2point))
    }
  };
  return res;
};

Point.prototype.inspect = function inspect() {
  if (this.isInfinity())
    return '<EC Point Infinity>';
  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
      ' y: ' + this.y.fromRed().toString(16, 2) + '>';
};

Point.prototype.isInfinity = function isInfinity() {
  return this.inf;
};

Point.prototype.add = function add(p) {
  // O + P = P
  if (this.inf)
    return p;

  // P + O = P
  if (p.inf)
    return this;

  // P + P = 2P
  if (this.eq(p))
    return this.dbl();

  // P + (-P) = O
  if (this.neg().eq(p))
    return this.curve.point(null, null);

  // P + Q = O
  if (this.x.cmp(p.x) === 0)
    return this.curve.point(null, null);

  var c = this.y.redSub(p.y);
  if (c.cmpn(0) !== 0)
    c = c.redMul(this.x.redSub(p.x).redInvm());
  var nx = c.redSqr().redISub(this.x).redISub(p.x);
  var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);
  return this.curve.point(nx, ny);
};

Point.prototype.dbl = function dbl() {
  if (this.inf)
    return this;

  // 2P = O
  var ys1 = this.y.redAdd(this.y);
  if (ys1.cmpn(0) === 0)
    return this.curve.point(null, null);

  var a = this.curve.a;

  var x2 = this.x.redSqr();
  var dyinv = ys1.redInvm();
  var c = x2.redAdd(x2).redIAdd(x2).redIAdd(a).redMul(dyinv);

  var nx = c.redSqr().redISub(this.x.redAdd(this.x));
  var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);
  return this.curve.point(nx, ny);
};

Point.prototype.getX = function getX() {
  return this.x.fromRed();
};

Point.prototype.getY = function getY() {
  return this.y.fromRed();
};

Point.prototype.mul = function mul(k) {
  k = new bn(k, 16);

  if (this.precomputed && this.precomputed.doubles)
    return this.curve._fixedNafMul(this, k);
  else if (this.curve.endo)
    return this.curve._endoWnafMulAdd([ this ], [ k ]);
  else
    return this.curve._wnafMul(this, k);
};

Point.prototype.mulAdd = function mulAdd(k1, p2, k2) {
  var points = [ this, p2 ];
  var coeffs = [ k1, k2 ];
  if (this.curve.endo)
    return this.curve._endoWnafMulAdd(points, coeffs);
  else
    return this.curve._wnafMulAdd(1, points, coeffs, 2);
};

Point.prototype.eq = function eq(p) {
  return this === p ||
         this.inf === p.inf &&
             (this.inf || this.x.cmp(p.x) === 0 && this.y.cmp(p.y) === 0);
};

Point.prototype.neg = function neg(_precompute) {
  if (this.inf)
    return this;

  var res = this.curve.point(this.x, this.y.redNeg());
  if (_precompute && this.precomputed) {
    var pre = this.precomputed;
    var negate = function(p) {
      return p.neg();
    };
    res.precomputed = {
      naf: pre.naf && {
        wnd: pre.naf.wnd,
        points: pre.naf.points.map(negate)
      },
      doubles: pre.doubles && {
        step: pre.doubles.step,
        points: pre.doubles.points.map(negate)
      }
    };
  }
  return res;
};

Point.prototype.toJ = function toJ() {
  if (this.inf)
    return this.curve.jpoint(null, null, null);

  var res = this.curve.jpoint(this.x, this.y, this.curve.one);
  return res;
};

function JPoint(curve, x, y, z) {
  Base.BasePoint.call(this, curve, 'jacobian');
  if (x === null && y === null && z === null) {
    this.x = this.curve.one;
    this.y = this.curve.one;
    this.z = new bn(0);
  } else {
    this.x = new bn(x, 16);
    this.y = new bn(y, 16);
    this.z = new bn(z, 16);
  }
  if (!this.x.red)
    this.x = this.x.toRed(this.curve.red);
  if (!this.y.red)
    this.y = this.y.toRed(this.curve.red);
  if (!this.z.red)
    this.z = this.z.toRed(this.curve.red);

  this.zOne = this.z === this.curve.one;
}
inherits(JPoint, Base.BasePoint);

ShortCurve.prototype.jpoint = function jpoint(x, y, z) {
  return new JPoint(this, x, y, z);
};

JPoint.prototype.toP = function toP() {
  if (this.isInfinity())
    return this.curve.point(null, null);

  var zinv = this.z.redInvm();
  var zinv2 = zinv.redSqr();
  var ax = this.x.redMul(zinv2);
  var ay = this.y.redMul(zinv2).redMul(zinv);

  return this.curve.point(ax, ay);
};

JPoint.prototype.neg = function neg() {
  return this.curve.jpoint(this.x, this.y.redNeg(), this.z);
};

JPoint.prototype.add = function add(p) {
  // O + P = P
  if (this.isInfinity())
    return p;

  // P + O = P
  if (p.isInfinity())
    return this;

  // 12M + 4S + 7A
  var pz2 = p.z.redSqr();
  var z2 = this.z.redSqr();
  var u1 = this.x.redMul(pz2);
  var u2 = p.x.redMul(z2);
  var s1 = this.y.redMul(pz2.redMul(p.z));
  var s2 = p.y.redMul(z2.redMul(this.z));

  var h = u1.redSub(u2);
  var r = s1.redSub(s2);
  if (h.cmpn(0) === 0) {
    if (r.cmpn(0) !== 0)
      return this.curve.jpoint(null, null, null);
    else
      return this.dbl();
  }

  var h2 = h.redSqr();
  var h3 = h2.redMul(h);
  var v = u1.redMul(h2);

  var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);
  var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));
  var nz = this.z.redMul(p.z).redMul(h);

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype.mixedAdd = function mixedAdd(p) {
  // O + P = P
  if (this.isInfinity())
    return p.toJ();

  // P + O = P
  if (p.isInfinity())
    return this;

  // 8M + 3S + 7A
  var z2 = this.z.redSqr();
  var u1 = this.x;
  var u2 = p.x.redMul(z2);
  var s1 = this.y;
  var s2 = p.y.redMul(z2).redMul(this.z);

  var h = u1.redSub(u2);
  var r = s1.redSub(s2);
  if (h.cmpn(0) === 0) {
    if (r.cmpn(0) !== 0)
      return this.curve.jpoint(null, null, null);
    else
      return this.dbl();
  }

  var h2 = h.redSqr();
  var h3 = h2.redMul(h);
  var v = u1.redMul(h2);

  var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);
  var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));
  var nz = this.z.redMul(h);

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype.dblp = function dblp(pow) {
  if (pow === 0)
    return this;
  if (this.isInfinity())
    return this;
  if (!pow)
    return this.dbl();

  if (this.curve.zeroA || this.curve.threeA) {
    var r = this;
    for (var i = 0; i < pow; i++)
      r = r.dbl();
    return r;
  }

  // 1M + 2S + 1A + N * (4S + 5M + 8A)
  // N = 1 => 6M + 6S + 9A
  var a = this.curve.a;
  var tinv = this.curve.tinv;

  var jx = this.x;
  var jy = this.y;
  var jz = this.z;
  var jz4 = jz.redSqr().redSqr();

  // Reuse results
  var jyd = jy.redAdd(jy);
  for (var i = 0; i < pow; i++) {
    var jx2 = jx.redSqr();
    var jyd2 = jyd.redSqr();
    var jyd4 = jyd2.redSqr();
    var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));

    var t1 = jx.redMul(jyd2);
    var nx = c.redSqr().redISub(t1.redAdd(t1));
    var t2 = t1.redISub(nx);
    var dny = c.redMul(t2);
    dny = dny.redIAdd(dny).redISub(jyd4);
    var nz = jyd.redMul(jz);
    if (i + 1 < pow)
      jz4 = jz4.redMul(jyd4);

    jx = nx;
    jz = nz;
    jyd = dny;
  }

  return this.curve.jpoint(jx, jyd.redMul(tinv), jz);
};

JPoint.prototype.dbl = function dbl() {
  if (this.isInfinity())
    return this;

  if (this.curve.zeroA)
    return this._zeroDbl();
  else if (this.curve.threeA)
    return this._threeDbl();
  else
    return this._dbl();
};

JPoint.prototype._zeroDbl = function _zeroDbl() {
  var nx;
  var ny;
  var nz;
  // Z = 1
  if (this.zOne) {
    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html
    //     #doubling-mdbl-2007-bl
    // 1M + 5S + 14A

    // XX = X1^2
    var xx = this.x.redSqr();
    // YY = Y1^2
    var yy = this.y.redSqr();
    // YYYY = YY^2
    var yyyy = yy.redSqr();
    // S = 2 * ((X1 + YY)^2 - XX - YYYY)
    var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
    s = s.redIAdd(s);
    // M = 3 * XX + a; a = 0
    var m = xx.redAdd(xx).redIAdd(xx);
    // T = M ^ 2 - 2*S
    var t = m.redSqr().redISub(s).redISub(s);

    // 8 * YYYY
    var yyyy8 = yyyy.redIAdd(yyyy);
    yyyy8 = yyyy8.redIAdd(yyyy8);
    yyyy8 = yyyy8.redIAdd(yyyy8);

    // X3 = T
    nx = t;
    // Y3 = M * (S - T) - 8 * YYYY
    ny = m.redMul(s.redISub(t)).redISub(yyyy8);
    // Z3 = 2*Y1
    nz = this.y.redAdd(this.y);
  } else {
    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html
    //     #doubling-dbl-2009-l
    // 2M + 5S + 13A

    // A = X1^2
    var a = this.x.redSqr();
    // B = Y1^2
    var b = this.y.redSqr();
    // C = B^2
    var c = b.redSqr();
    // D = 2 * ((X1 + B)^2 - A - C)
    var d = this.x.redAdd(b).redSqr().redISub(a).redISub(c);
    d = d.redIAdd(d);
    // E = 3 * A
    var e = a.redAdd(a).redIAdd(a);
    // F = E^2
    var f = e.redSqr();

    // 8 * C
    var c8 = c.redIAdd(c);
    c8 = c8.redIAdd(c8);
    c8 = c8.redIAdd(c8);

    // X3 = F - 2 * D
    nx = f.redISub(d).redISub(d);
    // Y3 = E * (D - X3) - 8 * C
    ny = e.redMul(d.redISub(nx)).redISub(c8);
    // Z3 = 2 * Y1 * Z1
    nz = this.y.redMul(this.z);
    nz = nz.redIAdd(nz);
  }

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype._threeDbl = function _threeDbl() {
  var nx;
  var ny;
  var nz;
  // Z = 1
  if (this.zOne) {
    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html
    //     #doubling-mdbl-2007-bl
    // 1M + 5S + 15A

    // XX = X1^2
    var xx = this.x.redSqr();
    // YY = Y1^2
    var yy = this.y.redSqr();
    // YYYY = YY^2
    var yyyy = yy.redSqr();
    // S = 2 * ((X1 + YY)^2 - XX - YYYY)
    var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
    s = s.redIAdd(s);
    // M = 3 * XX + a
    var m = xx.redAdd(xx).redIAdd(xx).redIAdd(this.curve.a);
    // T = M^2 - 2 * S
    var t = m.redSqr().redISub(s).redISub(s);
    // X3 = T
    nx = t;
    // Y3 = M * (S - T) - 8 * YYYY
    var yyyy8 = yyyy.redIAdd(yyyy);
    yyyy8 = yyyy8.redIAdd(yyyy8);
    yyyy8 = yyyy8.redIAdd(yyyy8);
    ny = m.redMul(s.redISub(t)).redISub(yyyy8);
    // Z3 = 2 * Y1
    nz = this.y.redAdd(this.y);
  } else {
    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2001-b
    // 3M + 5S

    // delta = Z1^2
    var delta = this.z.redSqr();
    // gamma = Y1^2
    var gamma = this.y.redSqr();
    // beta = X1 * gamma
    var beta = this.x.redMul(gamma);
    // alpha = 3 * (X1 - delta) * (X1 + delta)
    var alpha = this.x.redSub(delta).redMul(this.x.redAdd(delta));
    alpha = alpha.redAdd(alpha).redIAdd(alpha);
    // X3 = alpha^2 - 8 * beta
    var beta4 = beta.redIAdd(beta);
    beta4 = beta4.redIAdd(beta4);
    var beta8 = beta4.redAdd(beta4);
    nx = alpha.redSqr().redISub(beta8);
    // Z3 = (Y1 + Z1)^2 - gamma - delta
    nz = this.y.redAdd(this.z).redSqr().redISub(gamma).redISub(delta);
    // Y3 = alpha * (4 * beta - X3) - 8 * gamma^2
    var ggamma8 = gamma.redSqr();
    ggamma8 = ggamma8.redIAdd(ggamma8);
    ggamma8 = ggamma8.redIAdd(ggamma8);
    ggamma8 = ggamma8.redIAdd(ggamma8);
    ny = alpha.redMul(beta4.redISub(nx)).redISub(ggamma8);
  }

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype._dbl = function _dbl() {
  var a = this.curve.a;

  // 4M + 6S + 10A
  var jx = this.x;
  var jy = this.y;
  var jz = this.z;
  var jz4 = jz.redSqr().redSqr();

  var jx2 = jx.redSqr();
  var jy2 = jy.redSqr();

  var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));

  var jxd4 = jx.redAdd(jx);
  jxd4 = jxd4.redIAdd(jxd4);
  var t1 = jxd4.redMul(jy2);
  var nx = c.redSqr().redISub(t1.redAdd(t1));
  var t2 = t1.redISub(nx);

  var jyd8 = jy2.redSqr();
  jyd8 = jyd8.redIAdd(jyd8);
  jyd8 = jyd8.redIAdd(jyd8);
  jyd8 = jyd8.redIAdd(jyd8);
  var ny = c.redMul(t2).redISub(jyd8);
  var nz = jy.redAdd(jy).redMul(jz);

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype.trpl = function trpl() {
  if (!this.curve.zeroA)
    return this.dbl().add(this);

  // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#tripling-tpl-2007-bl
  // 5M + 10S + ...

  // XX = X1^2
  var xx = this.x.redSqr();
  // YY = Y1^2
  var yy = this.y.redSqr();
  // ZZ = Z1^2
  var zz = this.z.redSqr();
  // YYYY = YY^2
  var yyyy = yy.redSqr();
  // M = 3 * XX + a * ZZ2; a = 0
  var m = xx.redAdd(xx).redIAdd(xx);
  // MM = M^2
  var mm = m.redSqr();
  // E = 6 * ((X1 + YY)^2 - XX - YYYY) - MM
  var e = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
  e = e.redIAdd(e);
  e = e.redAdd(e).redIAdd(e);
  e = e.redISub(mm);
  // EE = E^2
  var ee = e.redSqr();
  // T = 16*YYYY
  var t = yyyy.redIAdd(yyyy);
  t = t.redIAdd(t);
  t = t.redIAdd(t);
  t = t.redIAdd(t);
  // U = (M + E)^2 - MM - EE - T
  var u = m.redIAdd(e).redSqr().redISub(mm).redISub(ee).redISub(t);
  // X3 = 4 * (X1 * EE - 4 * YY * U)
  var yyu4 = yy.redMul(u);
  yyu4 = yyu4.redIAdd(yyu4);
  yyu4 = yyu4.redIAdd(yyu4);
  var nx = this.x.redMul(ee).redISub(yyu4);
  nx = nx.redIAdd(nx);
  nx = nx.redIAdd(nx);
  // Y3 = 8 * Y1 * (U * (T - U) - E * EE)
  var ny = this.y.redMul(u.redMul(t.redISub(u)).redISub(e.redMul(ee)));
  ny = ny.redIAdd(ny);
  ny = ny.redIAdd(ny);
  ny = ny.redIAdd(ny);
  // Z3 = (Z1 + E)^2 - ZZ - EE
  var nz = this.z.redAdd(e).redSqr().redISub(zz).redISub(ee);

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype.mul = function mul(k, kbase) {
  k = new bn(k, kbase);

  return this.curve._wnafMul(this, k);
};

JPoint.prototype.eq = function eq(p) {
  if (p.type === 'affine')
    return this.eq(p.toJ());

  if (this === p)
    return true;

  // x1 * z2^2 == x2 * z1^2
  var z2 = this.z.redSqr();
  var pz2 = p.z.redSqr();
  if (this.x.redMul(pz2).redISub(p.x.redMul(z2)).cmpn(0) !== 0)
    return false;

  // y1 * z2^3 == y2 * z1^3
  var z3 = z2.redMul(this.z);
  var pz3 = pz2.redMul(p.z);
  return this.y.redMul(pz3).redISub(p.y.redMul(z3)).cmpn(0) === 0;
};

JPoint.prototype.inspect = function inspect() {
  if (this.isInfinity())
    return '<EC JPoint Infinity>';
  return '<EC JPoint x: ' + this.x.toString(16, 2) +
      ' y: ' + this.y.toString(16, 2) +
      ' z: ' + this.z.toString(16, 2) + '>';
};

JPoint.prototype.isInfinity = function isInfinity() {
  // XXX This code assumes that zero is always zero in red
  return this.z.cmpn(0) === 0;
};

},{"../../elliptic":114,"../curve":117,"bn.js":65,"inherits":139}],120:[function(require,module,exports){
'use strict';

var curves = exports;

var hash = require('hash.js');
var elliptic = require('../elliptic');

var assert = elliptic.utils.assert;

function PresetCurve(options) {
  if (options.type === 'short')
    this.curve = new elliptic.curve.short(options);
  else if (options.type === 'edwards')
    this.curve = new elliptic.curve.edwards(options);
  else
    this.curve = new elliptic.curve.mont(options);
  this.g = this.curve.g;
  this.n = this.curve.n;
  this.hash = options.hash;

  assert(this.g.validate(), 'Invalid curve');
  assert(this.g.mul(this.n).isInfinity(), 'Invalid curve, G*N != O');
}
curves.PresetCurve = PresetCurve;

function defineCurve(name, options) {
  Object.defineProperty(curves, name, {
    configurable: true,
    enumerable: true,
    get: function() {
      var curve = new PresetCurve(options);
      Object.defineProperty(curves, name, {
        configurable: true,
        enumerable: true,
        value: curve
      });
      return curve;
    }
  });
}

defineCurve('p192', {
  type: 'short',
  prime: 'p192',
  p: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff',
  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc',
  b: '64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1',
  n: 'ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831',
  hash: hash.sha256,
  gRed: false,
  g: [
    '188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012',
    '07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811'
  ]
});

defineCurve('p224', {
  type: 'short',
  prime: 'p224',
  p: 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001',
  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe',
  b: 'b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4',
  n: 'ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d',
  hash: hash.sha256,
  gRed: false,
  g: [
    'b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21',
    'bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34'
  ]
});

defineCurve('p256', {
  type: 'short',
  prime: null,
  p: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff',
  a: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc',
  b: '5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b',
  n: 'ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551',
  hash: hash.sha256,
  gRed: false,
  g: [
    '6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296',
    '4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5'
  ]
});

defineCurve('curve25519', {
  type: 'mont',
  prime: 'p25519',
  p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',
  a: '76d06',
  b: '0',
  n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',
  hash: hash.sha256,
  gRed: false,
  g: [
    '9'
  ]
});

defineCurve('ed25519', {
  type: 'edwards',
  prime: 'p25519',
  p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',
  a: '-1',
  c: '1',
  // -121665 * (121666^(-1)) (mod P)
  d: '52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3',
  n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',
  hash: hash.sha256,
  gRed: false,
  g: [
    '216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a',

    // 4/5
    '6666666666666666666666666666666666666666666666666666666666666658'
  ]
});

var pre;
try {
  pre = require('./precomputed/secp256k1');
} catch (e) {
  pre = undefined;
}

defineCurve('secp256k1', {
  type: 'short',
  prime: 'k256',
  p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f',
  a: '0',
  b: '7',
  n: 'ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141',
  h: '1',
  hash: hash.sha256,

  // Precomputed endomorphism
  beta: '7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee',
  lambda: '5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72',
  basis: [
    {
      a: '3086d221a7d46bcde86c90e49284eb15',
      b: '-e4437ed6010e88286f547fa90abfe4c3'
    },
    {
      a: '114ca50f7a8e2f3f657c1108d9d44cfd8',
      b: '3086d221a7d46bcde86c90e49284eb15'
    }
  ],

  gRed: false,
  g: [
    '79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798',
    '483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8',
    pre
  ]
});

},{"../elliptic":114,"./precomputed/secp256k1":125,"hash.js":128}],121:[function(require,module,exports){
'use strict';

var bn = require('bn.js');
var elliptic = require('../../elliptic');
var utils = elliptic.utils;
var assert = utils.assert;

var KeyPair = require('./key');
var Signature = require('./signature');

function EC(options) {
  if (!(this instanceof EC))
    return new EC(options);

  // Shortcut `elliptic.ec(curve-name)`
  if (typeof options === 'string') {
    assert(elliptic.curves.hasOwnProperty(options), 'Unknown curve ' + options);

    options = elliptic.curves[options];
  }

  // Shortcut for `elliptic.ec(elliptic.curves.curveName)`
  if (options instanceof elliptic.curves.PresetCurve)
    options = { curve: options };

  this.curve = options.curve.curve;
  this.n = this.curve.n;
  this.nh = this.n.shrn(1);
  this.g = this.curve.g;

  // Point on curve
  this.g = options.curve.g;
  this.g.precompute(options.curve.n.bitLength() + 1);

  // Hash for function for DRBG
  this.hash = options.hash || options.curve.hash;
}
module.exports = EC;

EC.prototype.keyPair = function keyPair(options) {
  return new KeyPair(this, options);
};

EC.prototype.keyFromPrivate = function keyFromPrivate(priv, enc) {
  return KeyPair.fromPrivate(this, priv, enc);
};

EC.prototype.keyFromPublic = function keyFromPublic(pub, enc) {
  return KeyPair.fromPublic(this, pub, enc);
};

EC.prototype.genKeyPair = function genKeyPair(options) {
  if (!options)
    options = {};

  // Instantiate Hmac_DRBG
  var drbg = new elliptic.hmacDRBG({
    hash: this.hash,
    pers: options.pers,
    entropy: options.entropy || elliptic.rand(this.hash.hmacStrength),
    nonce: this.n.toArray()
  });

  var bytes = this.n.byteLength();
  var ns2 = this.n.sub(new bn(2));
  do {
    var priv = new bn(drbg.generate(bytes));
    if (priv.cmp(ns2) > 0)
      continue;

    priv.iaddn(1);
    return this.keyFromPrivate(priv);
  } while (true);
};

EC.prototype._truncateToN = function truncateToN(msg, truncOnly) {
  var delta = msg.byteLength() * 8 - this.n.bitLength();
  if (delta > 0)
    msg = msg.shrn(delta);
  if (!truncOnly && msg.cmp(this.n) >= 0)
    return msg.sub(this.n);
  else
    return msg;
};

EC.prototype.sign = function sign(msg, key, enc, options) {
  if (typeof enc === 'object') {
    options = enc;
    enc = null;
  }
  if (!options)
    options = {};

  key = this.keyFromPrivate(key, enc);
  msg = this._truncateToN(new bn(msg, 16));

  // Zero-extend key to provide enough entropy
  var bytes = this.n.byteLength();
  var bkey = key.getPrivate().toArray();
  for (var i = bkey.length; i < 21; i++)
    bkey.unshift(0);

  // Zero-extend nonce to have the same byte size as N
  var nonce = msg.toArray();
  for (var i = nonce.length; i < bytes; i++)
    nonce.unshift(0);

  // Instantiate Hmac_DRBG
  var drbg = new elliptic.hmacDRBG({
    hash: this.hash,
    entropy: bkey,
    nonce: nonce
  });

  // Number of bytes to generate
  var ns1 = this.n.sub(new bn(1));
  do {
    var k = new bn(drbg.generate(this.n.byteLength()));
    k = this._truncateToN(k, true);
    if (k.cmpn(1) <= 0 || k.cmp(ns1) >= 0)
      continue;

    var kp = this.g.mul(k);
    if (kp.isInfinity())
      continue;

    var r = kp.getX().mod(this.n);
    if (r.cmpn(0) === 0)
      continue;

    var s = k.invm(this.n).mul(r.mul(key.getPrivate()).iadd(msg)).mod(this.n);
    if (s.cmpn(0) === 0)
      continue;

    // Use complement of `s`, if it is > `n / 2`
    if (options.canonical && s.cmp(this.nh) > 0)
      s = this.n.sub(s);

    return new Signature({ r: r, s: s });
  } while (true);
};

EC.prototype.verify = function verify(msg, signature, key, enc) {
  msg = this._truncateToN(new bn(msg, 16));
  key = this.keyFromPublic(key, enc);
  signature = new Signature(signature, 'hex');

  // Perform primitive values validation
  var r = signature.r;
  var s = signature.s;
  if (r.cmpn(1) < 0 || r.cmp(this.n) >= 0)
    return false;
  if (s.cmpn(1) < 0 || s.cmp(this.n) >= 0)
    return false;

  // Validate signature
  var sinv = s.invm(this.n);
  var u1 = sinv.mul(msg).mod(this.n);
  var u2 = sinv.mul(r).mod(this.n);

  var p = this.g.mulAdd(u1, key.getPublic(), u2);
  if (p.isInfinity())
    return false;

  return p.getX().mod(this.n).cmp(r) === 0;
};

},{"../../elliptic":114,"./key":122,"./signature":123,"bn.js":65}],122:[function(require,module,exports){
'use strict';

var bn = require('bn.js');

var elliptic = require('../../elliptic');
var utils = elliptic.utils;

function KeyPair(ec, options) {
  this.ec = ec;
  this.priv = null;
  this.pub = null;

  // KeyPair(ec, { priv: ..., pub: ... })
  if (options.priv)
    this._importPrivate(options.priv, options.privEnc);
  if (options.pub)
    this._importPublic(options.pub, options.pubEnc);
}
module.exports = KeyPair;

KeyPair.fromPublic = function fromPublic(ec, pub, enc) {
  if (pub instanceof KeyPair)
    return pub;

  return new KeyPair(ec, {
    pub: pub,
    pubEnc: enc
  });
};

KeyPair.fromPrivate = function fromPrivate(ec, priv, enc) {
  if (priv instanceof KeyPair)
    return priv;

  return new KeyPair(ec, {
    priv: priv,
    privEnc: enc
  });
};

KeyPair.prototype.validate = function validate() {
  var pub = this.getPublic();

  if (pub.isInfinity())
    return { result: false, reason: 'Invalid public key' };
  if (!pub.validate())
    return { result: false, reason: 'Public key is not a point' };
  if (!pub.mul(this.ec.curve.n).isInfinity())
    return { result: false, reason: 'Public key * N != O' };

  return { result: true, reason: null };
};

KeyPair.prototype.getPublic = function getPublic(compact, enc) {
  if (!this.pub)
    this.pub = this.ec.g.mul(this.priv);

  // compact is optional argument
  if (typeof compact === 'string') {
    enc = compact;
    compact = null;
  }

  if (!enc)
    return this.pub;

  var len = this.ec.curve.p.byteLength();
  var x = this.pub.getX().toArray();

  for (var i = x.length; i < len; i++)
    x.unshift(0);

  var res;
  if (this.ec.curve.type !== 'mont') {
    if (compact) {
      res = [ this.pub.getY().isEven() ? 0x02 : 0x03 ].concat(x);
    } else {
      var y = this.pub.getY().toArray();
      for (var i = y.length; i < len; i++)
        y.unshift(0);
      var res = [ 0x04 ].concat(x, y);
    }
  } else {
    res = x;
  }

  return utils.encode(res, enc);
};

KeyPair.prototype.getPrivate = function getPrivate(enc) {
  if (enc === 'hex')
    return this.priv.toString(16, 2);
  else
    return this.priv;
};

KeyPair.prototype._importPrivate = function _importPrivate(key, enc) {
  this.priv = new bn(key, enc || 16);

  // Ensure that the priv won't be bigger than n, otherwise we may fail
  // in fixed multiplication method
  this.priv = this.priv.mod(this.ec.curve.n);
};

KeyPair.prototype._importPublic = function _importPublic(key, enc) {
  if (key.x || key.y) {
    this.pub = this.ec.curve.point(key.x, key.y);
    return;
  }

  key = utils.toArray(key, enc);
  if (this.ec.curve.type !== 'mont')
    return this._importPublicShort(key);
  else
    return this._importPublicMont(key);
};

KeyPair.prototype._importPublicShort = function _importPublicShort(key) {
  var len = this.ec.curve.p.byteLength();
  if (key[0] === 0x04 && key.length - 1 === 2 * len) {
    this.pub = this.ec.curve.point(
      key.slice(1, 1 + len),
      key.slice(1 + len, 1 + 2 * len));
  } else if ((key[0] === 0x02 || key[0] === 0x03) && key.length - 1 === len) {
    this.pub = this.ec.curve.pointFromX(key[0] === 0x03, key.slice(1, 1 + len));
  }
};

KeyPair.prototype._importPublicMont = function _importPublicMont(key) {
  this.pub = this.ec.curve.point(key, 1);
};

// ECDH
KeyPair.prototype.derive = function derive(pub) {
  return pub.mul(this.priv).getX();
};

// ECDSA
KeyPair.prototype.sign = function sign(msg) {
  return this.ec.sign(msg, this);
};

KeyPair.prototype.verify = function verify(msg, signature) {
  return this.ec.verify(msg, signature, this);
};

KeyPair.prototype.inspect = function inspect() {
  return '<Key priv: ' + (this.priv && this.priv.toString(16, 2)) +
         ' pub: ' + (this.pub && this.pub.inspect()) + ' >';
};

},{"../../elliptic":114,"bn.js":65}],123:[function(require,module,exports){
'use strict';

var bn = require('bn.js');

var elliptic = require('../../elliptic');
var utils = elliptic.utils;
var assert = utils.assert;

function Signature(options, enc) {
  if (options instanceof Signature)
    return options;

  if (this._importDER(options, enc))
    return;

  assert(options.r && options.s, 'Signature without r or s');
  this.r = new bn(options.r, 16);
  this.s = new bn(options.s, 16);
}
module.exports = Signature;

Signature.prototype._importDER = function _importDER(data, enc) {
  data = utils.toArray(data, enc);
  if (data.length < 6 || data[0] !== 0x30 || data[2] !== 0x02)
    return false;
  var total = data[1];
  if (1 + total > data.length)
    return false;
  var rlen = data[3];
  // Short length notation
  if (rlen >= 0x80)
    return false;
  if (4 + rlen + 2 >= data.length)
    return false;
  if (data[4 + rlen] !== 0x02)
    return false;
  var slen = data[5 + rlen];
  // Short length notation
  if (slen >= 0x80)
    return false;
  if (4 + rlen + 2 + slen > data.length)
    return false;

  this.r = new bn(data.slice(4, 4 + rlen));
  this.s = new bn(data.slice(4 + rlen + 2, 4 + rlen + 2 + slen));

  return true;
};

Signature.prototype.toDER = function toDER(enc) {
  var r = this.r.toArray();
  var s = this.s.toArray();

  // Pad values
  if (r[0] & 0x80)
    r = [ 0 ].concat(r);
  // Pad values
  if (s[0] & 0x80)
    s = [ 0 ].concat(s);

  var total = r.length + s.length + 4;
  var res = [ 0x30, total, 0x02, r.length ];
  res = res.concat(r, [ 0x02, s.length ], s);
  return utils.encode(res, enc);
};

},{"../../elliptic":114,"bn.js":65}],124:[function(require,module,exports){
'use strict';

var hash = require('hash.js');
var elliptic = require('../elliptic');
var utils = elliptic.utils;
var assert = utils.assert;

function HmacDRBG(options) {
  if (!(this instanceof HmacDRBG))
    return new HmacDRBG(options);
  this.hash = options.hash;
  this.predResist = !!options.predResist;

  this.outLen = this.hash.outSize;
  this.minEntropy = options.minEntropy || this.hash.hmacStrength;

  this.reseed = null;
  this.reseedInterval = null;
  this.K = null;
  this.V = null;

  var entropy = utils.toArray(options.entropy, options.entropyEnc);
  var nonce = utils.toArray(options.nonce, options.nonceEnc);
  var pers = utils.toArray(options.pers, options.persEnc);
  assert(entropy.length >= (this.minEntropy / 8),
         'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');
  this._init(entropy, nonce, pers);
}
module.exports = HmacDRBG;

HmacDRBG.prototype._init = function init(entropy, nonce, pers) {
  var seed = entropy.concat(nonce).concat(pers);

  this.K = new Array(this.outLen / 8);
  this.V = new Array(this.outLen / 8);
  for (var i = 0; i < this.V.length; i++) {
    this.K[i] = 0x00;
    this.V[i] = 0x01;
  }

  this._update(seed);
  this.reseed = 1;
  this.reseedInterval = 0x1000000000000;  // 2^48
};

HmacDRBG.prototype._hmac = function hmac() {
  return new hash.hmac(this.hash, this.K);
};

HmacDRBG.prototype._update = function update(seed) {
  var kmac = this._hmac()
                 .update(this.V)
                 .update([ 0x00 ]);
  if (seed)
    kmac = kmac.update(seed);
  this.K = kmac.digest();
  this.V = this._hmac().update(this.V).digest();
  if (!seed)
    return;

  this.K = this._hmac()
               .update(this.V)
               .update([ 0x01 ])
               .update(seed)
               .digest();
  this.V = this._hmac().update(this.V).digest();
};

HmacDRBG.prototype.reseed = function reseed(entropy, entropyEnc, add, addEnc) {
  // Optional entropy enc
  if (typeof entropyEnc !== 'string') {
    addEnc = add;
    add = entropyEnc;
    entropyEnc = null;
  }

  entropy = utils.toBuffer(entropy, entropyEnc);
  add = utils.toBuffer(add, addEnc);

  assert(entropy.length >= (this.minEntropy / 8),
         'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');

  this._update(entropy.concat(add || []));
  this.reseed = 1;
};

HmacDRBG.prototype.generate = function generate(len, enc, add, addEnc) {
  if (this.reseed > this.reseedInterval)
    throw new Error('Reseed is required');

  // Optional encoding
  if (typeof enc !== 'string') {
    addEnc = add;
    add = enc;
    enc = null;
  }

  // Optional additional data
  if (add) {
    add = utils.toArray(add, addEnc);
    this._update(add);
  }

  var temp = [];
  while (temp.length < len) {
    this.V = this._hmac().update(this.V).digest();
    temp = temp.concat(this.V);
  }

  var res = temp.slice(0, len);
  this._update(add);
  this.reseed++;
  return utils.encode(res, enc);
};

},{"../elliptic":114,"hash.js":128}],125:[function(require,module,exports){
module.exports = {
  doubles: {
    step: 4,
    points: [
      [
        'e60fce93b59e9ec53011aabc21c23e97b2a31369b87a5ae9c44ee89e2a6dec0a',
        'f7e3507399e595929db99f34f57937101296891e44d23f0be1f32cce69616821'
      ],
      [
        '8282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508',
        '11f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf'
      ],
      [
        '175e159f728b865a72f99cc6c6fc846de0b93833fd2222ed73fce5b551e5b739',
        'd3506e0d9e3c79eba4ef97a51ff71f5eacb5955add24345c6efa6ffee9fed695'
      ],
      [
        '363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640',
        '4e273adfc732221953b445397f3363145b9a89008199ecb62003c7f3bee9de9'
      ],
      [
        '8b4b5f165df3c2be8c6244b5b745638843e4a781a15bcd1b69f79a55dffdf80c',
        '4aad0a6f68d308b4b3fbd7813ab0da04f9e336546162ee56b3eff0c65fd4fd36'
      ],
      [
        '723cbaa6e5db996d6bf771c00bd548c7b700dbffa6c0e77bcb6115925232fcda',
        '96e867b5595cc498a921137488824d6e2660a0653779494801dc069d9eb39f5f'
      ],
      [
        'eebfa4d493bebf98ba5feec812c2d3b50947961237a919839a533eca0e7dd7fa',
        '5d9a8ca3970ef0f269ee7edaf178089d9ae4cdc3a711f712ddfd4fdae1de8999'
      ],
      [
        '100f44da696e71672791d0a09b7bde459f1215a29b3c03bfefd7835b39a48db0',
        'cdd9e13192a00b772ec8f3300c090666b7ff4a18ff5195ac0fbd5cd62bc65a09'
      ],
      [
        'e1031be262c7ed1b1dc9227a4a04c017a77f8d4464f3b3852c8acde6e534fd2d',
        '9d7061928940405e6bb6a4176597535af292dd419e1ced79a44f18f29456a00d'
      ],
      [
        'feea6cae46d55b530ac2839f143bd7ec5cf8b266a41d6af52d5e688d9094696d',
        'e57c6b6c97dce1bab06e4e12bf3ecd5c981c8957cc41442d3155debf18090088'
      ],
      [
        'da67a91d91049cdcb367be4be6ffca3cfeed657d808583de33fa978bc1ec6cb1',
        '9bacaa35481642bc41f463f7ec9780e5dec7adc508f740a17e9ea8e27a68be1d'
      ],
      [
        '53904faa0b334cdda6e000935ef22151ec08d0f7bb11069f57545ccc1a37b7c0',
        '5bc087d0bc80106d88c9eccac20d3c1c13999981e14434699dcb096b022771c8'
      ],
      [
        '8e7bcd0bd35983a7719cca7764ca906779b53a043a9b8bcaeff959f43ad86047',
        '10b7770b2a3da4b3940310420ca9514579e88e2e47fd68b3ea10047e8460372a'
      ],
      [
        '385eed34c1cdff21e6d0818689b81bde71a7f4f18397e6690a841e1599c43862',
        '283bebc3e8ea23f56701de19e9ebf4576b304eec2086dc8cc0458fe5542e5453'
      ],
      [
        '6f9d9b803ecf191637c73a4413dfa180fddf84a5947fbc9c606ed86c3fac3a7',
        '7c80c68e603059ba69b8e2a30e45c4d47ea4dd2f5c281002d86890603a842160'
      ],
      [
        '3322d401243c4e2582a2147c104d6ecbf774d163db0f5e5313b7e0e742d0e6bd',
        '56e70797e9664ef5bfb019bc4ddaf9b72805f63ea2873af624f3a2e96c28b2a0'
      ],
      [
        '85672c7d2de0b7da2bd1770d89665868741b3f9af7643397721d74d28134ab83',
        '7c481b9b5b43b2eb6374049bfa62c2e5e77f17fcc5298f44c8e3094f790313a6'
      ],
      [
        '948bf809b1988a46b06c9f1919413b10f9226c60f668832ffd959af60c82a0a',
        '53a562856dcb6646dc6b74c5d1c3418c6d4dff08c97cd2bed4cb7f88d8c8e589'
      ],
      [
        '6260ce7f461801c34f067ce0f02873a8f1b0e44dfc69752accecd819f38fd8e8',
        'bc2da82b6fa5b571a7f09049776a1ef7ecd292238051c198c1a84e95b2b4ae17'
      ],
      [
        'e5037de0afc1d8d43d8348414bbf4103043ec8f575bfdc432953cc8d2037fa2d',
        '4571534baa94d3b5f9f98d09fb990bddbd5f5b03ec481f10e0e5dc841d755bda'
      ],
      [
        'e06372b0f4a207adf5ea905e8f1771b4e7e8dbd1c6a6c5b725866a0ae4fce725',
        '7a908974bce18cfe12a27bb2ad5a488cd7484a7787104870b27034f94eee31dd'
      ],
      [
        '213c7a715cd5d45358d0bbf9dc0ce02204b10bdde2a3f58540ad6908d0559754',
        '4b6dad0b5ae462507013ad06245ba190bb4850f5f36a7eeddff2c27534b458f2'
      ],
      [
        '4e7c272a7af4b34e8dbb9352a5419a87e2838c70adc62cddf0cc3a3b08fbd53c',
        '17749c766c9d0b18e16fd09f6def681b530b9614bff7dd33e0b3941817dcaae6'
      ],
      [
        'fea74e3dbe778b1b10f238ad61686aa5c76e3db2be43057632427e2840fb27b6',
        '6e0568db9b0b13297cf674deccb6af93126b596b973f7b77701d3db7f23cb96f'
      ],
      [
        '76e64113f677cf0e10a2570d599968d31544e179b760432952c02a4417bdde39',
        'c90ddf8dee4e95cf577066d70681f0d35e2a33d2b56d2032b4b1752d1901ac01'
      ],
      [
        'c738c56b03b2abe1e8281baa743f8f9a8f7cc643df26cbee3ab150242bcbb891',
        '893fb578951ad2537f718f2eacbfbbbb82314eef7880cfe917e735d9699a84c3'
      ],
      [
        'd895626548b65b81e264c7637c972877d1d72e5f3a925014372e9f6588f6c14b',
        'febfaa38f2bc7eae728ec60818c340eb03428d632bb067e179363ed75d7d991f'
      ],
      [
        'b8da94032a957518eb0f6433571e8761ceffc73693e84edd49150a564f676e03',
        '2804dfa44805a1e4d7c99cc9762808b092cc584d95ff3b511488e4e74efdf6e7'
      ],
      [
        'e80fea14441fb33a7d8adab9475d7fab2019effb5156a792f1a11778e3c0df5d',
        'eed1de7f638e00771e89768ca3ca94472d155e80af322ea9fcb4291b6ac9ec78'
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      ]
    ]
  }
};

},{}],126:[function(require,module,exports){
'use strict';

var utils = exports;

utils.assert = function assert(val, msg) {
  if (!val)
    throw new Error(msg || 'Assertion failed');
};

function toArray(msg, enc) {
  if (Array.isArray(msg))
    return msg.slice();
  if (!msg)
    return [];
  var res = [];
  if (typeof msg !== 'string') {
    for (var i = 0; i < msg.length; i++)
      res[i] = msg[i] | 0;
    return res;
  }
  if (!enc) {
    for (var i = 0; i < msg.length; i++) {
      var c = msg.charCodeAt(i);
      var hi = c >> 8;
      var lo = c & 0xff;
      if (hi)
        res.push(hi, lo);
      else
        res.push(lo);
    }
  } else if (enc === 'hex') {
    msg = msg.replace(/[^a-z0-9]+/ig, '');
    if (msg.length % 2 !== 0)
      msg = '0' + msg;
    for (var i = 0; i < msg.length; i += 2)
      res.push(parseInt(msg[i] + msg[i + 1], 16));
  }
  return res;
}
utils.toArray = toArray;

function zero2(word) {
  if (word.length === 1)
    return '0' + word;
  else
    return word;
}
utils.zero2 = zero2;

function toHex(msg) {
  var res = '';
  for (var i = 0; i < msg.length; i++)
    res += zero2(msg[i].toString(16));
  return res;
}
utils.toHex = toHex;

utils.encode = function encode(arr, enc) {
  if (enc === 'hex')
    return toHex(arr);
  else
    return arr;
};

// Represent num in a w-NAF form
function getNAF(num, w) {
  var naf = [];
  var ws = 1 << (w + 1);
  var k = num.clone();
  while (k.cmpn(1) >= 0) {
    var z;
    if (k.isOdd()) {
      var mod = k.andln(ws - 1);
      if (mod > (ws >> 1) - 1)
        z = (ws >> 1) - mod;
      else
        z = mod;
      k.isubn(z);
    } else {
      z = 0;
    }
    naf.push(z);

    // Optimization, shift by word if possible
    var shift = (k.cmpn(0) !== 0 && k.andln(ws - 1) === 0) ? (w + 1) : 1;
    for (var i = 1; i < shift; i++)
      naf.push(0);
    k.ishrn(shift);
  }

  return naf;
}
utils.getNAF = getNAF;

// Represent k1, k2 in a Joint Sparse Form
function getJSF(k1, k2) {
  var jsf = [
    [],
    []
  ];

  k1 = k1.clone();
  k2 = k2.clone();
  var d1 = 0;
  var d2 = 0;
  while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) {

    // First phase
    var m14 = (k1.andln(3) + d1) & 3;
    var m24 = (k2.andln(3) + d2) & 3;
    if (m14 === 3)
      m14 = -1;
    if (m24 === 3)
      m24 = -1;
    var u1;
    if ((m14 & 1) === 0) {
      u1 = 0;
    } else {
      var m8 = (k1.andln(7) + d1) & 7;
      if ((m8 === 3 || m8 === 5) && m24 === 2)
        u1 = -m14;
      else
        u1 = m14;
    }
    jsf[0].push(u1);

    var u2;
    if ((m24 & 1) === 0) {
      u2 = 0;
    } else {
      var m8 = (k2.andln(7) + d2) & 7;
      if ((m8 === 3 || m8 === 5) && m14 === 2)
        u2 = -m24;
      else
        u2 = m24;
    }
    jsf[1].push(u2);

    // Second phase
    if (2 * d1 === u1 + 1)
      d1 = 1 - d1;
    if (2 * d2 === u2 + 1)
      d2 = 1 - d2;
    k1.ishrn(1);
    k2.ishrn(1);
  }

  return jsf;
}
utils.getJSF = getJSF;

},{}],127:[function(require,module,exports){
var r;

module.exports = function rand(len) {
  if (!r)
    r = new Rand(null);

  return r.generate(len);
};

function Rand(rand) {
  this.rand = rand;
}
module.exports.Rand = Rand;

Rand.prototype.generate = function generate(len) {
  return this._rand(len);
};

if (typeof window === 'object') {
  if (window.crypto && window.crypto.getRandomValues) {
    // Modern browsers
    Rand.prototype._rand = function _rand(n) {
      var arr = new Uint8Array(n);
      window.crypto.getRandomValues(arr);
      return arr;
    };
  } else if (window.msCrypto && window.msCrypto.getRandomValues) {
    // IE
    Rand.prototype._rand = function _rand(n) {
      var arr = new Uint8Array(n);
      window.msCrypto.getRandomValues(arr);
      return arr;
    };
  } else {
    // Old junk
    Rand.prototype._rand = function() {
      throw new Error('Not implemented yet');
    };
  }
} else {
  // Node.js or Web worker
  try {
    var crypto = require('cry' + 'pto');

    Rand.prototype._rand = function _rand(n) {
      return crypto.randomBytes(n);
    };
  } catch (e) {
    // Emulate crypto API using randy
    Rand.prototype._rand = function _rand(n) {
      var res = new Uint8Array(n);
      for (var i = 0; i < res.length; i++)
        res[i] = this.rand.getByte();
      return res;
    };
  }
}

},{}],128:[function(require,module,exports){
var hash = exports;

hash.utils = require('./hash/utils');
hash.common = require('./hash/common');
hash.sha = require('./hash/sha');
hash.ripemd = require('./hash/ripemd');
hash.hmac = require('./hash/hmac');

// Proxy hash functions to the main object
hash.sha1 = hash.sha.sha1;
hash.sha256 = hash.sha.sha256;
hash.sha224 = hash.sha.sha224;
hash.sha384 = hash.sha.sha384;
hash.sha512 = hash.sha.sha512;
hash.ripemd160 = hash.ripemd.ripemd160;

},{"./hash/common":129,"./hash/hmac":130,"./hash/ripemd":131,"./hash/sha":132,"./hash/utils":133}],129:[function(require,module,exports){
var hash = require('../hash');
var utils = hash.utils;
var assert = utils.assert;

function BlockHash() {
  this.pending = null;
  this.pendingTotal = 0;
  this.blockSize = this.constructor.blockSize;
  this.outSize = this.constructor.outSize;
  this.hmacStrength = this.constructor.hmacStrength;
  this.padLength = this.constructor.padLength / 8;
  this.endian = 'big';

  this._delta8 = this.blockSize / 8;
  this._delta32 = this.blockSize / 32;
}
exports.BlockHash = BlockHash;

BlockHash.prototype.update = function update(msg, enc) {
  // Convert message to array, pad it, and join into 32bit blocks
  msg = utils.toArray(msg, enc);
  if (!this.pending)
    this.pending = msg;
  else
    this.pending = this.pending.concat(msg);
  this.pendingTotal += msg.length;

  // Enough data, try updating
  if (this.pending.length >= this._delta8) {
    msg = this.pending;

    // Process pending data in blocks
    var r = msg.length % this._delta8;
    this.pending = msg.slice(msg.length - r, msg.length);
    if (this.pending.length === 0)
      this.pending = null;

    msg = utils.join32(msg, 0, msg.length - r, this.endian);
    for (var i = 0; i < msg.length; i += this._delta32)
      this._update(msg, i, i + this._delta32);
  }

  return this;
};

BlockHash.prototype.digest = function digest(enc) {
  this.update(this._pad());
  assert(this.pending === null);

  return this._digest(enc);
};

BlockHash.prototype._pad = function pad() {
  var len = this.pendingTotal;
  var bytes = this._delta8;
  var k = bytes - ((len + this.padLength) % bytes);
  var res = new Array(k + this.padLength);
  res[0] = 0x80;
  for (var i = 1; i < k; i++)
    res[i] = 0;

  // Append length
  len <<= 3;
  if (this.endian === 'big') {
    for (var t = 8; t < this.padLength; t++)
      res[i++] = 0;

    res[i++] = 0;
    res[i++] = 0;
    res[i++] = 0;
    res[i++] = 0;
    res[i++] = (len >>> 24) & 0xff;
    res[i++] = (len >>> 16) & 0xff;
    res[i++] = (len >>> 8) & 0xff;
    res[i++] = len & 0xff;
  } else {
    res[i++] = len & 0xff;
    res[i++] = (len >>> 8) & 0xff;
    res[i++] = (len >>> 16) & 0xff;
    res[i++] = (len >>> 24) & 0xff;
    res[i++] = 0;
    res[i++] = 0;
    res[i++] = 0;
    res[i++] = 0;

    for (var t = 8; t < this.padLength; t++)
      res[i++] = 0;
  }

  return res;
};

},{"../hash":128}],130:[function(require,module,exports){
var hmac = exports;

var hash = require('../hash');
var utils = hash.utils;
var assert = utils.assert;

function Hmac(hash, key, enc) {
  if (!(this instanceof Hmac))
    return new Hmac(hash, key, enc);
  this.Hash = hash;
  this.blockSize = hash.blockSize / 8;
  this.outSize = hash.outSize / 8;
  this.inner = null;
  this.outer = null;

  this._init(utils.toArray(key, enc));
}
module.exports = Hmac;

Hmac.prototype._init = function init(key) {
  // Shorten key, if needed
  if (key.length > this.blockSize)
    key = new this.Hash().update(key).digest();
  assert(key.length <= this.blockSize);

  // Add padding to key
  for (var i = key.length; i < this.blockSize; i++)
    key.push(0);

  for (var i = 0; i < key.length; i++)
    key[i] ^= 0x36;
  this.inner = new this.Hash().update(key);

  // 0x36 ^ 0x5c = 0x6a
  for (var i = 0; i < key.length; i++)
    key[i] ^= 0x6a;
  this.outer = new this.Hash().update(key);
};

Hmac.prototype.update = function update(msg, enc) {
  this.inner.update(msg, enc);
  return this;
};

Hmac.prototype.digest = function digest(enc) {
  this.outer.update(this.inner.digest());
  return this.outer.digest(enc);
};

},{"../hash":128}],131:[function(require,module,exports){
var hash = require('../hash');
var utils = hash.utils;

var rotl32 = utils.rotl32;
var sum32 = utils.sum32;
var sum32_3 = utils.sum32_3;
var sum32_4 = utils.sum32_4;
var BlockHash = hash.common.BlockHash;

function RIPEMD160() {
  if (!(this instanceof RIPEMD160))
    return new RIPEMD160();

  BlockHash.call(this);

  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ];
  this.endian = 'little';
}
utils.inherits(RIPEMD160, BlockHash);
exports.ripemd160 = RIPEMD160;

RIPEMD160.blockSize = 512;
RIPEMD160.outSize = 160;
RIPEMD160.hmacStrength = 192;
RIPEMD160.padLength = 64;

RIPEMD160.prototype._update = function update(msg, start) {
  var A = this.h[0];
  var B = this.h[1];
  var C = this.h[2];
  var D = this.h[3];
  var E = this.h[4];
  var Ah = A;
  var Bh = B;
  var Ch = C;
  var Dh = D;
  var Eh = E;
  for (var j = 0; j < 80; j++) {
    var T = sum32(
      rotl32(
        sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)),
        s[j]),
      E);
    A = E;
    E = D;
    D = rotl32(C, 10);
    C = B;
    B = T;
    T = sum32(
      rotl32(
        sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)),
        sh[j]),
      Eh);
    Ah = Eh;
    Eh = Dh;
    Dh = rotl32(Ch, 10);
    Ch = Bh;
    Bh = T;
  }
  T = sum32_3(this.h[1], C, Dh);
  this.h[1] = sum32_3(this.h[2], D, Eh);
  this.h[2] = sum32_3(this.h[3], E, Ah);
  this.h[3] = sum32_3(this.h[4], A, Bh);
  this.h[4] = sum32_3(this.h[0], B, Ch);
  this.h[0] = T;
};

RIPEMD160.prototype._digest = function digest(enc) {
  if (enc === 'hex')
    return utils.toHex32(this.h, 'little');
  else
    return utils.split32(this.h, 'little');
};

function f(j, x, y, z) {
  if (j <= 15)
    return x ^ y ^ z;
  else if (j <= 31)
    return (x & y) | ((~x) & z);
  else if (j <= 47)
    return (x | (~y)) ^ z;
  else if (j <= 63)
    return (x & z) | (y & (~z));
  else
    return x ^ (y | (~z));
}

function K(j) {
  if (j <= 15)
    return 0x00000000;
  else if (j <= 31)
    return 0x5a827999;
  else if (j <= 47)
    return 0x6ed9eba1;
  else if (j <= 63)
    return 0x8f1bbcdc;
  else
    return 0xa953fd4e;
}

function Kh(j) {
  if (j <= 15)
    return 0x50a28be6;
  else if (j <= 31)
    return 0x5c4dd124;
  else if (j <= 47)
    return 0x6d703ef3;
  else if (j <= 63)
    return 0x7a6d76e9;
  else
    return 0x00000000;
}

var r = [
  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
];

var rh = [
  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
];

var s = [
  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
];

var sh = [
  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
];

},{"../hash":128}],132:[function(require,module,exports){
var hash = require('../hash');
var utils = hash.utils;
var assert = utils.assert;

var rotr32 = utils.rotr32;
var rotl32 = utils.rotl32;
var sum32 = utils.sum32;
var sum32_4 = utils.sum32_4;
var sum32_5 = utils.sum32_5;
var rotr64_hi = utils.rotr64_hi;
var rotr64_lo = utils.rotr64_lo;
var shr64_hi = utils.shr64_hi;
var shr64_lo = utils.shr64_lo;
var sum64 = utils.sum64;
var sum64_hi = utils.sum64_hi;
var sum64_lo = utils.sum64_lo;
var sum64_4_hi = utils.sum64_4_hi;
var sum64_4_lo = utils.sum64_4_lo;
var sum64_5_hi = utils.sum64_5_hi;
var sum64_5_lo = utils.sum64_5_lo;
var BlockHash = hash.common.BlockHash;

var sha256_K = [
  0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
  0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
  0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
  0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
  0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
  0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
  0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
  0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
  0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
  0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
  0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
  0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
  0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
  0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
  0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
  0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
];

var sha512_K = [
  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
];

var sha1_K = [
  0x5A827999, 0x6ED9EBA1,
  0x8F1BBCDC, 0xCA62C1D6
];

function SHA256() {
  if (!(this instanceof SHA256))
    return new SHA256();

  BlockHash.call(this);
  this.h = [ 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
             0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 ];
  this.k = sha256_K;
  this.W = new Array(64);
}
utils.inherits(SHA256, BlockHash);
exports.sha256 = SHA256;

SHA256.blockSize = 512;
SHA256.outSize = 256;
SHA256.hmacStrength = 192;
SHA256.padLength = 64;

SHA256.prototype._update = function _update(msg, start) {
  var W = this.W;

  for (var i = 0; i < 16; i++)
    W[i] = msg[start + i];
  for (; i < W.length; i++)
    W[i] = sum32_4(g1_256(W[i - 2]), W[i - 7], g0_256(W[i - 15]), W[i - 16]);

  var a = this.h[0];
  var b = this.h[1];
  var c = this.h[2];
  var d = this.h[3];
  var e = this.h[4];
  var f = this.h[5];
  var g = this.h[6];
  var h = this.h[7];

  assert(this.k.length === W.length);
  for (var i = 0; i < W.length; i++) {
    var T1 = sum32_5(h, s1_256(e), ch32(e, f, g), this.k[i], W[i]);
    var T2 = sum32(s0_256(a), maj32(a, b, c));
    h = g;
    g = f;
    f = e;
    e = sum32(d, T1);
    d = c;
    c = b;
    b = a;
    a = sum32(T1, T2);
  }

  this.h[0] = sum32(this.h[0], a);
  this.h[1] = sum32(this.h[1], b);
  this.h[2] = sum32(this.h[2], c);
  this.h[3] = sum32(this.h[3], d);
  this.h[4] = sum32(this.h[4], e);
  this.h[5] = sum32(this.h[5], f);
  this.h[6] = sum32(this.h[6], g);
  this.h[7] = sum32(this.h[7], h);
};

SHA256.prototype._digest = function digest(enc) {
  if (enc === 'hex')
    return utils.toHex32(this.h, 'big');
  else
    return utils.split32(this.h, 'big');
};

function SHA224() {
  if (!(this instanceof SHA224))
    return new SHA224();

  SHA256.call(this);
  this.h = [ 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,
             0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ];
}
utils.inherits(SHA224, SHA256);
exports.sha224 = SHA224;

SHA224.blockSize = 512;
SHA224.outSize = 224;
SHA224.hmacStrength = 192;
SHA224.padLength = 64;

SHA224.prototype._digest = function digest(enc) {
  // Just truncate output
  if (enc === 'hex')
    return utils.toHex32(this.h.slice(0, 7), 'big');
  else
    return utils.split32(this.h.slice(0, 7), 'big');
};

function SHA512() {
  if (!(this instanceof SHA512))
    return new SHA512();

  BlockHash.call(this);
  this.h = [ 0x6a09e667, 0xf3bcc908,
             0xbb67ae85, 0x84caa73b,
             0x3c6ef372, 0xfe94f82b,
             0xa54ff53a, 0x5f1d36f1,
             0x510e527f, 0xade682d1,
             0x9b05688c, 0x2b3e6c1f,
             0x1f83d9ab, 0xfb41bd6b,
             0x5be0cd19, 0x137e2179 ];
  this.k = sha512_K;
  this.W = new Array(160);
}
utils.inherits(SHA512, BlockHash);
exports.sha512 = SHA512;

SHA512.blockSize = 1024;
SHA512.outSize = 512;
SHA512.hmacStrength = 192;
SHA512.padLength = 128;

SHA512.prototype._prepareBlock = function _prepareBlock(msg, start) {
  var W = this.W;

  // 32 x 32bit words
  for (var i = 0; i < 32; i++)
    W[i] = msg[start + i];
  for (; i < W.length; i += 2) {
    var c0_hi = g1_512_hi(W[i - 4], W[i - 3]);  // i - 2
    var c0_lo = g1_512_lo(W[i - 4], W[i - 3]);
    var c1_hi = W[i - 14];  // i - 7
    var c1_lo = W[i - 13];
    var c2_hi = g0_512_hi(W[i - 30], W[i - 29]);  // i - 15
    var c2_lo = g0_512_lo(W[i - 30], W[i - 29]);
    var c3_hi = W[i - 32];  // i - 16
    var c3_lo = W[i - 31];

    W[i] = sum64_4_hi(c0_hi, c0_lo,
                      c1_hi, c1_lo,
                      c2_hi, c2_lo,
                      c3_hi, c3_lo);
    W[i + 1] = sum64_4_lo(c0_hi, c0_lo,
                          c1_hi, c1_lo,
                          c2_hi, c2_lo,
                          c3_hi, c3_lo);
  }
};

SHA512.prototype._update = function _update(msg, start) {
  this._prepareBlock(msg, start);

  var W = this.W;

  var ah = this.h[0];
  var al = this.h[1];
  var bh = this.h[2];
  var bl = this.h[3];
  var ch = this.h[4];
  var cl = this.h[5];
  var dh = this.h[6];
  var dl = this.h[7];
  var eh = this.h[8];
  var el = this.h[9];
  var fh = this.h[10];
  var fl = this.h[11];
  var gh = this.h[12];
  var gl = this.h[13];
  var hh = this.h[14];
  var hl = this.h[15];

  assert(this.k.length === W.length);
  for (var i = 0; i < W.length; i += 2) {
    var c0_hi = hh;
    var c0_lo = hl;
    var c1_hi = s1_512_hi(eh, el);
    var c1_lo = s1_512_lo(eh, el);
    var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl);
    var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl);
    var c3_hi = this.k[i];
    var c3_lo = this.k[i + 1];
    var c4_hi = W[i];
    var c4_lo = W[i + 1];

    var T1_hi = sum64_5_hi(c0_hi, c0_lo,
                           c1_hi, c1_lo,
                           c2_hi, c2_lo,
                           c3_hi, c3_lo,
                           c4_hi, c4_lo);
    var T1_lo = sum64_5_lo(c0_hi, c0_lo,
                           c1_hi, c1_lo,
                           c2_hi, c2_lo,
                           c3_hi, c3_lo,
                           c4_hi, c4_lo);

    var c0_hi = s0_512_hi(ah, al);
    var c0_lo = s0_512_lo(ah, al);
    var c1_hi = maj64_hi(ah, al, bh, bl, ch, cl);
    var c1_lo = maj64_lo(ah, al, bh, bl, ch, cl);

    var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo);
    var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo);

    hh = gh;
    hl = gl;

    gh = fh;
    gl = fl;

    fh = eh;
    fl = el;

    eh = sum64_hi(dh, dl, T1_hi, T1_lo);
    el = sum64_lo(dl, dl, T1_hi, T1_lo);

    dh = ch;
    dl = cl;

    ch = bh;
    cl = bl;

    bh = ah;
    bl = al;

    ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo);
    al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo);
  }

  sum64(this.h, 0, ah, al);
  sum64(this.h, 2, bh, bl);
  sum64(this.h, 4, ch, cl);
  sum64(this.h, 6, dh, dl);
  sum64(this.h, 8, eh, el);
  sum64(this.h, 10, fh, fl);
  sum64(this.h, 12, gh, gl);
  sum64(this.h, 14, hh, hl);
};

SHA512.prototype._digest = function digest(enc) {
  if (enc === 'hex')
    return utils.toHex32(this.h, 'big');
  else
    return utils.split32(this.h, 'big');
};

function SHA384() {
  if (!(this instanceof SHA384))
    return new SHA384();

  SHA512.call(this);
  this.h = [ 0xcbbb9d5d, 0xc1059ed8,
             0x629a292a, 0x367cd507,
             0x9159015a, 0x3070dd17,
             0x152fecd8, 0xf70e5939,
             0x67332667, 0xffc00b31,
             0x8eb44a87, 0x68581511,
             0xdb0c2e0d, 0x64f98fa7,
             0x47b5481d, 0xbefa4fa4 ];
}
utils.inherits(SHA384, SHA512);
exports.sha384 = SHA384;

SHA384.blockSize = 1024;
SHA384.outSize = 384;
SHA384.hmacStrength = 192;
SHA384.padLength = 128;

SHA384.prototype._digest = function digest(enc) {
  if (enc === 'hex')
    return utils.toHex32(this.h.slice(0, 12), 'big');
  else
    return utils.split32(this.h.slice(0, 12), 'big');
};

function SHA1() {
  if (!(this instanceof SHA1))
    return new SHA1();

  BlockHash.call(this);
  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe,
             0x10325476, 0xc3d2e1f0 ];
  this.W = new Array(80);
}

utils.inherits(SHA1, BlockHash);
exports.sha1 = SHA1;

SHA1.blockSize = 512;
SHA1.outSize = 160;
SHA1.hmacStrength = 80;
SHA1.padLength = 64;

SHA1.prototype._update = function _update(msg, start) {
  var W = this.W;

  for (var i = 0; i < 16; i++)
    W[i] = msg[start + i];

  for(; i < W.length; i++)
    W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);

  var a = this.h[0];
  var b = this.h[1];
  var c = this.h[2];
  var d = this.h[3];
  var e = this.h[4];

  for (var i = 0; i < W.length; i++) {
    var s = ~~(i / 20);
    var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]);
    e = d;
    d = c;
    c = rotl32(b, 30);
    b = a;
    a = t;
  }

  this.h[0] = sum32(this.h[0], a);
  this.h[1] = sum32(this.h[1], b);
  this.h[2] = sum32(this.h[2], c);
  this.h[3] = sum32(this.h[3], d);
  this.h[4] = sum32(this.h[4], e);
};

SHA1.prototype._digest = function digest(enc) {
  if (enc === 'hex')
    return utils.toHex32(this.h, 'big');
  else
    return utils.split32(this.h, 'big');
};

function ch32(x, y, z) {
  return (x & y) ^ ((~x) & z);
}

function maj32(x, y, z) {
  return (x & y) ^ (x & z) ^ (y & z);
}

function p32(x, y, z) {
  return x ^ y ^ z;
}

function s0_256(x) {
  return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22);
}

function s1_256(x) {
  return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25);
}

function g0_256(x) {
  return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >>> 3);
}

function g1_256(x) {
  return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >>> 10);
}

function ft_1(s, x, y, z) {
  if (s === 0)
    return ch32(x, y, z);
  if (s === 1 || s === 3)
    return p32(x, y, z);
  if (s === 2)
    return maj32(x, y, z);
}

function ch64_hi(xh, xl, yh, yl, zh, zl) {
  var r = (xh & yh) ^ ((~xh) & zh);
  if (r < 0)
    r += 0x100000000;
  return r;
}

function ch64_lo(xh, xl, yh, yl, zh, zl) {
  var r = (xl & yl) ^ ((~xl) & zl);
  if (r < 0)
    r += 0x100000000;
  return r;
}

function maj64_hi(xh, xl, yh, yl, zh, zl) {
  var r = (xh & yh) ^ (xh & zh) ^ (yh & zh);
  if (r < 0)
    r += 0x100000000;
  return r;
}

function maj64_lo(xh, xl, yh, yl, zh, zl) {
  var r = (xl & yl) ^ (xl & zl) ^ (yl & zl);
  if (r < 0)
    r += 0x100000000;
  return r;
}

function s0_512_hi(xh, xl) {
  var c0_hi = rotr64_hi(xh, xl, 28);
  var c1_hi = rotr64_hi(xl, xh, 2);  // 34
  var c2_hi = rotr64_hi(xl, xh, 7);  // 39

  var r = c0_hi ^ c1_hi ^ c2_hi;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function s0_512_lo(xh, xl) {
  var c0_lo = rotr64_lo(xh, xl, 28);
  var c1_lo = rotr64_lo(xl, xh, 2);  // 34
  var c2_lo = rotr64_lo(xl, xh, 7);  // 39

  var r = c0_lo ^ c1_lo ^ c2_lo;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function s1_512_hi(xh, xl) {
  var c0_hi = rotr64_hi(xh, xl, 14);
  var c1_hi = rotr64_hi(xh, xl, 18);
  var c2_hi = rotr64_hi(xl, xh, 9);  // 41

  var r = c0_hi ^ c1_hi ^ c2_hi;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function s1_512_lo(xh, xl) {
  var c0_lo = rotr64_lo(xh, xl, 14);
  var c1_lo = rotr64_lo(xh, xl, 18);
  var c2_lo = rotr64_lo(xl, xh, 9);  // 41

  var r = c0_lo ^ c1_lo ^ c2_lo;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function g0_512_hi(xh, xl) {
  var c0_hi = rotr64_hi(xh, xl, 1);
  var c1_hi = rotr64_hi(xh, xl, 8);
  var c2_hi = shr64_hi(xh, xl, 7);

  var r = c0_hi ^ c1_hi ^ c2_hi;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function g0_512_lo(xh, xl) {
  var c0_lo = rotr64_lo(xh, xl, 1);
  var c1_lo = rotr64_lo(xh, xl, 8);
  var c2_lo = shr64_lo(xh, xl, 7);

  var r = c0_lo ^ c1_lo ^ c2_lo;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function g1_512_hi(xh, xl) {
  var c0_hi = rotr64_hi(xh, xl, 19);
  var c1_hi = rotr64_hi(xl, xh, 29);  // 61
  var c2_hi = shr64_hi(xh, xl, 6);

  var r = c0_hi ^ c1_hi ^ c2_hi;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function g1_512_lo(xh, xl) {
  var c0_lo = rotr64_lo(xh, xl, 19);
  var c1_lo = rotr64_lo(xl, xh, 29);  // 61
  var c2_lo = shr64_lo(xh, xl, 6);

  var r = c0_lo ^ c1_lo ^ c2_lo;
  if (r < 0)
    r += 0x100000000;
  return r;
}

},{"../hash":128}],133:[function(require,module,exports){
var utils = exports;
var inherits = require('inherits');

function toArray(msg, enc) {
  if (Array.isArray(msg))
    return msg.slice();
  if (!msg)
    return [];
  var res = [];
  if (typeof msg === 'string') {
    if (!enc) {
      for (var i = 0; i < msg.length; i++) {
        var c = msg.charCodeAt(i);
        var hi = c >> 8;
        var lo = c & 0xff;
        if (hi)
          res.push(hi, lo);
        else
          res.push(lo);
      }
    } else if (enc === 'hex') {
      msg = msg.replace(/[^a-z0-9]+/ig, '');
      if (msg.length % 2 !== 0)
        msg = '0' + msg;
      for (var i = 0; i < msg.length; i += 2)
        res.push(parseInt(msg[i] + msg[i + 1], 16));
    }
  } else {
    for (var i = 0; i < msg.length; i++)
      res[i] = msg[i] | 0;
  }
  return res;
}
utils.toArray = toArray;

function toHex(msg) {
  var res = '';
  for (var i = 0; i < msg.length; i++)
    res += zero2(msg[i].toString(16));
  return res;
}
utils.toHex = toHex;

function htonl(w) {
  var res = (w >>> 24) |
            ((w >>> 8) & 0xff00) |
            ((w << 8) & 0xff0000) |
            ((w & 0xff) << 24);
  return res >>> 0;
}
utils.htonl = htonl;

function toHex32(msg, endian) {
  var res = '';
  for (var i = 0; i < msg.length; i++) {
    var w = msg[i];
    if (endian === 'little')
      w = htonl(w);
    res += zero8(w.toString(16));
  }
  return res;
}
utils.toHex32 = toHex32;

function zero2(word) {
  if (word.length === 1)
    return '0' + word;
  else
    return word;
}
utils.zero2 = zero2;

function zero8(word) {
  if (word.length === 7)
    return '0' + word;
  else if (word.length === 6)
    return '00' + word;
  else if (word.length === 5)
    return '000' + word;
  else if (word.length === 4)
    return '0000' + word;
  else if (word.length === 3)
    return '00000' + word;
  else if (word.length === 2)
    return '000000' + word;
  else if (word.length === 1)
    return '0000000' + word;
  else
    return word;
}
utils.zero8 = zero8;

function join32(msg, start, end, endian) {
  var len = end - start;
  assert(len % 4 === 0);
  var res = new Array(len / 4);
  for (var i = 0, k = start; i < res.length; i++, k += 4) {
    var w;
    if (endian === 'big')
      w = (msg[k] << 24) | (msg[k + 1] << 16) | (msg[k + 2] << 8) | msg[k + 3];
    else
      w = (msg[k + 3] << 24) | (msg[k + 2] << 16) | (msg[k + 1] << 8) | msg[k];
    res[i] = w >>> 0;
  }
  return res;
}
utils.join32 = join32;

function split32(msg, endian) {
  var res = new Array(msg.length * 4);
  for (var i = 0, k = 0; i < msg.length; i++, k += 4) {
    var m = msg[i];
    if (endian === 'big') {
      res[k] = m >>> 24;
      res[k + 1] = (m >>> 16) & 0xff;
      res[k + 2] = (m >>> 8) & 0xff;
      res[k + 3] = m & 0xff;
    } else {
      res[k + 3] = m >>> 24;
      res[k + 2] = (m >>> 16) & 0xff;
      res[k + 1] = (m >>> 8) & 0xff;
      res[k] = m & 0xff;
    }
  }
  return res;
}
utils.split32 = split32;

function rotr32(w, b) {
  return (w >>> b) | (w << (32 - b));
}
utils.rotr32 = rotr32;

function rotl32(w, b) {
  return (w << b) | (w >>> (32 - b));
}
utils.rotl32 = rotl32;

function sum32(a, b) {
  return (a + b) >>> 0;
}
utils.sum32 = sum32;

function sum32_3(a, b, c) {
  return (a + b + c) >>> 0;
}
utils.sum32_3 = sum32_3;

function sum32_4(a, b, c, d) {
  return (a + b + c + d) >>> 0;
}
utils.sum32_4 = sum32_4;

function sum32_5(a, b, c, d, e) {
  return (a + b + c + d + e) >>> 0;
}
utils.sum32_5 = sum32_5;

function assert(cond, msg) {
  if (!cond)
    throw new Error(msg || 'Assertion failed');
}
utils.assert = assert;

utils.inherits = inherits;

function sum64(buf, pos, ah, al) {
  var bh = buf[pos];
  var bl = buf[pos + 1];

  var lo = (al + bl) >>> 0;
  var hi = (lo < al ? 1 : 0) + ah + bh;
  buf[pos] = hi >>> 0;
  buf[pos + 1] = lo;
}
exports.sum64 = sum64;

function sum64_hi(ah, al, bh, bl) {
  var lo = (al + bl) >>> 0;
  var hi = (lo < al ? 1 : 0) + ah + bh;
  return hi >>> 0;
};
exports.sum64_hi = sum64_hi;

function sum64_lo(ah, al, bh, bl) {
  var lo = al + bl;
  return lo >>> 0;
};
exports.sum64_lo = sum64_lo;

function sum64_4_hi(ah, al, bh, bl, ch, cl, dh, dl) {
  var carry = 0;
  var lo = al;
  lo = (lo + bl) >>> 0;
  carry += lo < al ? 1 : 0;
  lo = (lo + cl) >>> 0;
  carry += lo < cl ? 1 : 0;
  lo = (lo + dl) >>> 0;
  carry += lo < dl ? 1 : 0;

  var hi = ah + bh + ch + dh + carry;
  return hi >>> 0;
};
exports.sum64_4_hi = sum64_4_hi;

function sum64_4_lo(ah, al, bh, bl, ch, cl, dh, dl) {
  var lo = al + bl + cl + dl;
  return lo >>> 0;
};
exports.sum64_4_lo = sum64_4_lo;

function sum64_5_hi(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
  var carry = 0;
  var lo = al;
  lo = (lo + bl) >>> 0;
  carry += lo < al ? 1 : 0;
  lo = (lo + cl) >>> 0;
  carry += lo < cl ? 1 : 0;
  lo = (lo + dl) >>> 0;
  carry += lo < dl ? 1 : 0;
  lo = (lo + el) >>> 0;
  carry += lo < el ? 1 : 0;

  var hi = ah + bh + ch + dh + eh + carry;
  return hi >>> 0;
};
exports.sum64_5_hi = sum64_5_hi;

function sum64_5_lo(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
  var lo = al + bl + cl + dl + el;

  return lo >>> 0;
};
exports.sum64_5_lo = sum64_5_lo;

function rotr64_hi(ah, al, num) {
  var r = (al << (32 - num)) | (ah >>> num);
  return r >>> 0;
};
exports.rotr64_hi = rotr64_hi;

function rotr64_lo(ah, al, num) {
  var r = (ah << (32 - num)) | (al >>> num);
  return r >>> 0;
};
exports.rotr64_lo = rotr64_lo;

function shr64_hi(ah, al, num) {
  return ah >>> num;
};
exports.shr64_hi = shr64_hi;

function shr64_lo(ah, al, num) {
  var r = (ah << (32 - num)) | (al >>> num);
  return r >>> 0;
};
exports.shr64_lo = shr64_lo;

},{"inherits":139}],134:[function(require,module,exports){
module.exports={
  "_args": [
    [
      "elliptic@https://registry.npmjs.org/elliptic/-/elliptic-3.0.3.tgz",
      "/home/jon/development/bitcore-lib-dash"
    ]
  ],
  "_from": "elliptic@=3.0.3",
  "_id": "elliptic@3.0.3",
  "_inCache": true,
  "_location": "/elliptic",
  "_phantomChildren": {
    "inherits": "2.0.1"
  },
  "_requested": {
    "name": "elliptic",
    "raw": "elliptic@https://registry.npmjs.org/elliptic/-/elliptic-3.0.3.tgz",
    "rawSpec": "https://registry.npmjs.org/elliptic/-/elliptic-3.0.3.tgz",
    "scope": null,
    "spec": "https://registry.npmjs.org/elliptic/-/elliptic-3.0.3.tgz",
    "type": "remote"
  },
  "_requiredBy": [
    "/",
    "/browserify-sign",
    "/create-ecdh"
  ],
  "_resolved": "https://registry.npmjs.org/elliptic/-/elliptic-3.0.3.tgz",
  "_shasum": "865c9b420bfbe55006b9f969f97a0d2c44966595",
  "_shrinkwrap": null,
  "_spec": "elliptic@https://registry.npmjs.org/elliptic/-/elliptic-3.0.3.tgz",
  "_where": "/home/jon/development/bitcore-lib-dash",
  "author": {
    "email": "fedor@indutny.com",
    "name": "Fedor Indutny"
  },
  "bugs": {
    "url": "https://github.com/indutny/elliptic/issues"
  },
  "dependencies": {
    "bn.js": "^2.0.0",
    "brorand": "^1.0.1",
    "hash.js": "^1.0.0",
    "inherits": "^2.0.1"
  },
  "description": "EC cryptography",
  "devDependencies": {
    "browserify": "^3.44.2",
    "jscs": "^1.11.3",
    "jshint": "^2.6.0",
    "mocha": "^2.1.0",
    "uglify-js": "^2.4.13"
  },
  "homepage": "https://github.com/indutny/elliptic",
  "keywords": [
    "Cryptography",
    "EC",
    "Elliptic",
    "curve"
  ],
  "license": "MIT",
  "main": "lib/elliptic.js",
  "name": "elliptic",
  "optionalDependencies": {},
  "readme": "# Elliptic [![Build Status](https://secure.travis-ci.org/indutny/elliptic.png)](http://travis-ci.org/indutny/elliptic)\n\nFast elliptic-curve cryptography in a plain javascript implementation.\n\nNOTE: Please take a look at http://safecurves.cr.yp.to/ before choosing a curve\nfor your cryptography operations.\n\n## Incentive\n\nECC is much slower than regular RSA cryptography, the JS implementations are\neven more slower.\n\n## Benchmarks\n\n```bash\n$ node benchmarks/index.js\nBenchmarking: sign\nelliptic#sign x 262 ops/sec ±0.51% (177 runs sampled)\neccjs#sign x 55.91 ops/sec ±0.90% (144 runs sampled)\n------------------------\nFastest is elliptic#sign\n========================\nBenchmarking: verify\nelliptic#verify x 113 ops/sec ±0.50% (166 runs sampled)\neccjs#verify x 48.56 ops/sec ±0.36% (125 runs sampled)\n------------------------\nFastest is elliptic#verify\n========================\nBenchmarking: gen\nelliptic#gen x 294 ops/sec ±0.43% (176 runs sampled)\neccjs#gen x 62.25 ops/sec ±0.63% (129 runs sampled)\n------------------------\nFastest is elliptic#gen\n========================\nBenchmarking: ecdh\nelliptic#ecdh x 136 ops/sec ±0.85% (156 runs sampled)\n------------------------\nFastest is elliptic#ecdh\n========================\n```\n\n## API\n\n### ECDSA\n\n```javascript\nvar EC = require('elliptic').ec;\n\n// Create and initialize EC context\n// (better do it once and reuse it)\nvar ec = new EC('secp256k1');\n\n// Generate keys\nvar key = ec.genKeyPair();\n\n// Sign message (must be an array, or it'll be treated as a hex sequence)\nvar msg = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ];\nvar signature = key.sign(msg);\n\n// Export DER encoded signature in Array\nvar derSign = signature.toDER();\n\n// Verify signature\nconsole.log(key.verify(msg, derSign));\n```\n\n### ECDH\n\n```javascript\n// Generate keys\nvar key1 = ec.genKeyPair();\nvar key2 = ec.genKeyPair();\n\nvar shared1 = key1.derive(key2.getPublic());\nvar shared2 = key2.derive(key1.getPublic());\n\nconsole.log('Both shared secrets are BN instances');\nconsole.log(shared1.toString(16));\nconsole.log(shared2.toString(16));\n```\n\nNOTE: `.derive()` returns a [BN][1] instance.\n\n## Supported curves\n\nElliptic.js support following curve types:\n\n* Short Weierstrass\n* Montgomery\n* Edwards\n* Twisted Edwards\n\nFollowing curve 'presets' are embedded into the library:\n\n* `secp256k1`\n* `p192`\n* `p224`\n* `p256`\n* `curve25519`\n* `ed25519`\n\nNOTE: That `curve25519` could not be used for ECDSA, use `ed25519` instead.\n\n### Implementation details\n\nECDSA is using deterministic `k` value generation as per [RFC6979][0]. Most of\nthe curve operations are performed on non-affine coordinates (either projective\nor extended), various windowing techniques are used for different cases.\n\nAll operations are performed in reduction context using [bn.js][1], hashing is\nprovided by [hash.js][2]\n\n### Related projects\n\n* [eccrypto][3]: isomorphic implementation of ECDSA, ECDH and ECIES for both\n  browserify and node (uses `elliptic` for browser and [secp256k1-node][4] for\n  node)\n\n#### LICENSE\n\nThis software is licensed under the MIT License.\n\nCopyright Fedor Indutny, 2014.\n\nPermission is hereby granted, free of charge, to any person obtaining a\ncopy of this software and associated documentation files (the\n\"Software\"), to deal in the Software without restriction, including\nwithout limitation the rights to use, copy, modify, merge, publish,\ndistribute, sublicense, and/or sell copies of the Software, and to permit\npersons to whom the Software is furnished to do so, subject to the\nfollowing conditions:\n\nThe above copyright notice and this permission notice shall be included\nin all copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\nOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\nMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\nNO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\nDAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\nOTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\nUSE OR OTHER DEALINGS IN THE SOFTWARE.\n\n[0]: http://tools.ietf.org/html/rfc6979\n[1]: https://github.com/indutny/bn.js\n[2]: https://github.com/indutny/hash.js\n[3]: https://github.com/bitchan/eccrypto\n[4]: https://github.com/wanderer/secp256k1-node\n",
  "readmeFilename": "README.md",
  "repository": {
    "type": "git",
    "url": "git+ssh://git@github.com/indutny/elliptic.git"
  },
  "scripts": {
    "test": "make lint && mocha --reporter=spec test/*-test.js"
  },
  "version": "3.0.3"
}

},{}],135:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

function EventEmitter() {
  this._events = this._events || {};
  this._maxListeners = this._maxListeners || undefined;
}
module.exports = EventEmitter;

// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;

EventEmitter.prototype._events = undefined;
EventEmitter.prototype._maxListeners = undefined;

// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
EventEmitter.defaultMaxListeners = 10;

// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function(n) {
  if (!isNumber(n) || n < 0 || isNaN(n))
    throw TypeError('n must be a positive number');
  this._maxListeners = n;
  return this;
};

EventEmitter.prototype.emit = function(type) {
  var er, handler, len, args, i, listeners;

  if (!this._events)
    this._events = {};

  // If there is no 'error' event listener then throw.
  if (type === 'error') {
    if (!this._events.error ||
        (isObject(this._events.error) && !this._events.error.length)) {
      er = arguments[1];
      if (er instanceof Error) {
        throw er; // Unhandled 'error' event
      }
      throw TypeError('Uncaught, unspecified "error" event.');
    }
  }

  handler = this._events[type];

  if (isUndefined(handler))
    return false;

  if (isFunction(handler)) {
    switch (arguments.length) {
      // fast cases
      case 1:
        handler.call(this);
        break;
      case 2:
        handler.call(this, arguments[1]);
        break;
      case 3:
        handler.call(this, arguments[1], arguments[2]);
        break;
      // slower
      default:
        len = arguments.length;
        args = new Array(len - 1);
        for (i = 1; i < len; i++)
          args[i - 1] = arguments[i];
        handler.apply(this, args);
    }
  } else if (isObject(handler)) {
    len = arguments.length;
    args = new Array(len - 1);
    for (i = 1; i < len; i++)
      args[i - 1] = arguments[i];

    listeners = handler.slice();
    len = listeners.length;
    for (i = 0; i < len; i++)
      listeners[i].apply(this, args);
  }

  return true;
};

EventEmitter.prototype.addListener = function(type, listener) {
  var m;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events)
    this._events = {};

  // To avoid recursion in the case that type === "newListener"! Before
  // adding it to the listeners, first emit "newListener".
  if (this._events.newListener)
    this.emit('newListener', type,
              isFunction(listener.listener) ?
              listener.listener : listener);

  if (!this._events[type])
    // Optimize the case of one listener. Don't need the extra array object.
    this._events[type] = listener;
  else if (isObject(this._events[type]))
    // If we've already got an array, just append.
    this._events[type].push(listener);
  else
    // Adding the second element, need to change to array.
    this._events[type] = [this._events[type], listener];

  // Check for listener leak
  if (isObject(this._events[type]) && !this._events[type].warned) {
    var m;
    if (!isUndefined(this._maxListeners)) {
      m = this._maxListeners;
    } else {
      m = EventEmitter.defaultMaxListeners;
    }

    if (m && m > 0 && this._events[type].length > m) {
      this._events[type].warned = true;
      console.error('(node) warning: possible EventEmitter memory ' +
                    'leak detected. %d listeners added. ' +
                    'Use emitter.setMaxListeners() to increase limit.',
                    this._events[type].length);
      if (typeof console.trace === 'function') {
        // not supported in IE 10
        console.trace();
      }
    }
  }

  return this;
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.once = function(type, listener) {
  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  var fired = false;

  function g() {
    this.removeListener(type, g);

    if (!fired) {
      fired = true;
      listener.apply(this, arguments);
    }
  }

  g.listener = listener;
  this.on(type, g);

  return this;
};

// emits a 'removeListener' event iff the listener was removed
EventEmitter.prototype.removeListener = function(type, listener) {
  var list, position, length, i;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events || !this._events[type])
    return this;

  list = this._events[type];
  length = list.length;
  position = -1;

  if (list === listener ||
      (isFunction(list.listener) && list.listener === listener)) {
    delete this._events[type];
    if (this._events.removeListener)
      this.emit('removeListener', type, listener);

  } else if (isObject(list)) {
    for (i = length; i-- > 0;) {
      if (list[i] === listener ||
          (list[i].listener && list[i].listener === listener)) {
        position = i;
        break;
      }
    }

    if (position < 0)
      return this;

    if (list.length === 1) {
      list.length = 0;
      delete this._events[type];
    } else {
      list.splice(position, 1);
    }

    if (this._events.removeListener)
      this.emit('removeListener', type, listener);
  }

  return this;
};

EventEmitter.prototype.removeAllListeners = function(type) {
  var key, listeners;

  if (!this._events)
    return this;

  // not listening for removeListener, no need to emit
  if (!this._events.removeListener) {
    if (arguments.length === 0)
      this._events = {};
    else if (this._events[type])
      delete this._events[type];
    return this;
  }

  // emit removeListener for all listeners on all events
  if (arguments.length === 0) {
    for (key in this._events) {
      if (key === 'removeListener') continue;
      this.removeAllListeners(key);
    }
    this.removeAllListeners('removeListener');
    this._events = {};
    return this;
  }

  listeners = this._events[type];

  if (isFunction(listeners)) {
    this.removeListener(type, listeners);
  } else {
    // LIFO order
    while (listeners.length)
      this.removeListener(type, listeners[listeners.length - 1]);
  }
  delete this._events[type];

  return this;
};

EventEmitter.prototype.listeners = function(type) {
  var ret;
  if (!this._events || !this._events[type])
    ret = [];
  else if (isFunction(this._events[type]))
    ret = [this._events[type]];
  else
    ret = this._events[type].slice();
  return ret;
};

EventEmitter.listenerCount = function(emitter, type) {
  var ret;
  if (!emitter._events || !emitter._events[type])
    ret = 0;
  else if (isFunction(emitter._events[type]))
    ret = 1;
  else
    ret = emitter._events[type].length;
  return ret;
};

function isFunction(arg) {
  return typeof arg === 'function';
}

function isNumber(arg) {
  return typeof arg === 'number';
}

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}

function isUndefined(arg) {
  return arg === void 0;
}

},{}],136:[function(require,module,exports){
(function (Buffer){
var md5 = require('create-hash/md5')
module.exports = EVP_BytesToKey
function EVP_BytesToKey (password, salt, keyLen, ivLen) {
  if (!Buffer.isBuffer(password)) {
    password = new Buffer(password, 'binary')
  }
  if (salt && !Buffer.isBuffer(salt)) {
    salt = new Buffer(salt, 'binary')
  }
  keyLen = keyLen / 8
  ivLen = ivLen || 0
  var ki = 0
  var ii = 0
  var key = new Buffer(keyLen)
  var iv = new Buffer(ivLen)
  var addmd = 0
  var md_buf
  var i
  var bufs = []
  while (true) {
    if (addmd++ > 0) {
      bufs.push(md_buf)
    }
    bufs.push(password)
    if (salt) {
      bufs.push(salt)
    }
    md_buf = md5(Buffer.concat(bufs))
    bufs = []
    i = 0
    if (keyLen > 0) {
      while (true) {
        if (keyLen === 0) {
          break
        }
        if (i === md_buf.length) {
          break
        }
        key[ki++] = md_buf[i]
        keyLen--
        i++
      }
    }
    if (ivLen > 0 && i !== md_buf.length) {
      while (true) {
        if (ivLen === 0) {
          break
        }
        if (i === md_buf.length) {
          break
        }
        iv[ii++] = md_buf[i]
        ivLen--
        i++
      }
    }
    if (keyLen === 0 && ivLen === 0) {
      break
    }
  }
  for (i = 0; i < md_buf.length; i++) {
    md_buf[i] = 0
  }
  return {
    key: key,
    iv: iv
  }
}

}).call(this,require("buffer").Buffer)
},{"buffer":95,"create-hash/md5":101}],137:[function(require,module,exports){
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
  var e, m
  var eLen = nBytes * 8 - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var nBits = -7
  var i = isLE ? (nBytes - 1) : 0
  var d = isLE ? -1 : 1
  var s = buffer[offset + i]

  i += d

  e = s & ((1 << (-nBits)) - 1)
  s >>= (-nBits)
  nBits += eLen
  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}

  m = e & ((1 << (-nBits)) - 1)
  e >>= (-nBits)
  nBits += mLen
  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}

  if (e === 0) {
    e = 1 - eBias
  } else if (e === eMax) {
    return m ? NaN : ((s ? -1 : 1) * Infinity)
  } else {
    m = m + Math.pow(2, mLen)
    e = e - eBias
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}

exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c
  var eLen = nBytes * 8 - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
  var i = isLE ? 0 : (nBytes - 1)
  var d = isLE ? 1 : -1
  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0

  value = Math.abs(value)

  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0
    e = eMax
  } else {
    e = Math.floor(Math.log(value) / Math.LN2)
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--
      c *= 2
    }
    if (e + eBias >= 1) {
      value += rt / c
    } else {
      value += rt * Math.pow(2, 1 - eBias)
    }
    if (value * c >= 2) {
      e++
      c /= 2
    }

    if (e + eBias >= eMax) {
      m = 0
      e = eMax
    } else if (e + eBias >= 1) {
      m = (value * c - 1) * Math.pow(2, mLen)
      e = e + eBias
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
      e = 0
    }
  }

  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

  e = (e << mLen) | m
  eLen += mLen
  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

  buffer[offset + i - d] |= s * 128
}

},{}],138:[function(require,module,exports){

var indexOf = [].indexOf;

module.exports = function(arr, obj){
  if (indexOf) return arr.indexOf(obj);
  for (var i = 0; i < arr.length; ++i) {
    if (arr[i] === obj) return i;
  }
  return -1;
};
},{}],139:[function(require,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    ctor.prototype = Object.create(superCtor.prototype, {
      constructor: {
        value: ctor,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    var TempCtor = function () {}
    TempCtor.prototype = superCtor.prototype
    ctor.prototype = new TempCtor()
    ctor.prototype.constructor = ctor
  }
}

},{}],140:[function(require,module,exports){
/*!
 * Determine if an object is a Buffer
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */

// The _isBuffer check is for Safari 5-7 support, because it's missing
// Object.prototype.constructor. Remove this eventually
module.exports = function (obj) {
  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
}

function isBuffer (obj) {
  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
}

// For Node v0.10 support. Remove this eventually.
function isSlowBuffer (obj) {
  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
}

},{}],141:[function(require,module,exports){
var toString = {}.toString;

module.exports = Array.isArray || function (arr) {
  return toString.call(arr) == '[object Array]';
};

},{}],142:[function(require,module,exports){
(function (global){
/**
 * @license
 * lodash 3.10.1 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern -d -o ./index.js`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
;(function() {

  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
  var undefined;

  /** Used as the semantic version number. */
  var VERSION = '3.10.1';

  /** Used to compose bitmasks for wrapper metadata. */
  var BIND_FLAG = 1,
      BIND_KEY_FLAG = 2,
      CURRY_BOUND_FLAG = 4,
      CURRY_FLAG = 8,
      CURRY_RIGHT_FLAG = 16,
      PARTIAL_FLAG = 32,
      PARTIAL_RIGHT_FLAG = 64,
      ARY_FLAG = 128,
      REARG_FLAG = 256;

  /** Used as default options for `_.trunc`. */
  var DEFAULT_TRUNC_LENGTH = 30,
      DEFAULT_TRUNC_OMISSION = '...';

  /** Used to detect when a function becomes hot. */
  var HOT_COUNT = 150,
      HOT_SPAN = 16;

  /** Used as the size to enable large array optimizations. */
  var LARGE_ARRAY_SIZE = 200;

  /** Used to indicate the type of lazy iteratees. */
  var LAZY_FILTER_FLAG = 1,
      LAZY_MAP_FLAG = 2;

  /** Used as the `TypeError` message for "Functions" methods. */
  var FUNC_ERROR_TEXT = 'Expected a function';

  /** Used as the internal argument placeholder. */
  var PLACEHOLDER = '__lodash_placeholder__';

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      errorTag = '[object Error]',
      funcTag = '[object Function]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      objectTag = '[object Object]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      weakMapTag = '[object WeakMap]';

  var arrayBufferTag = '[object ArrayBuffer]',
      float32Tag = '[object Float32Array]',
      float64Tag = '[object Float64Array]',
      int8Tag = '[object Int8Array]',
      int16Tag = '[object Int16Array]',
      int32Tag = '[object Int32Array]',
      uint8Tag = '[object Uint8Array]',
      uint8ClampedTag = '[object Uint8ClampedArray]',
      uint16Tag = '[object Uint16Array]',
      uint32Tag = '[object Uint32Array]';

  /** Used to match empty string literals in compiled template source. */
  var reEmptyStringLeading = /\b__p \+= '';/g,
      reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
      reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;

  /** Used to match HTML entities and HTML characters. */
  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39|#96);/g,
      reUnescapedHtml = /[&<>"'`]/g,
      reHasEscapedHtml = RegExp(reEscapedHtml.source),
      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);

  /** Used to match template delimiters. */
  var reEscape = /<%-([\s\S]+?)%>/g,
      reEvaluate = /<%([\s\S]+?)%>/g,
      reInterpolate = /<%=([\s\S]+?)%>/g;

  /** Used to match property names within property paths. */
  var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\n\\]|\\.)*?\1)\]/,
      reIsPlainProp = /^\w*$/,
      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\n\\]|\\.)*?)\2)\]/g;

  /**
   * Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns)
   * and those outlined by [`EscapeRegExpPattern`](http://ecma-international.org/ecma-262/6.0/#sec-escaperegexppattern).
   */
  var reRegExpChars = /^[:!,]|[\\^$.*+?()[\]{}|\/]|(^[0-9a-fA-Fnrtuvx])|([\n\r\u2028\u2029])/g,
      reHasRegExpChars = RegExp(reRegExpChars.source);

  /** Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). */
  var reComboMark = /[\u0300-\u036f\ufe20-\ufe23]/g;

  /** Used to match backslashes in property paths. */
  var reEscapeChar = /\\(\\)?/g;

  /** Used to match [ES template delimiters](http://ecma-international.org/ecma-262/6.0/#sec-template-literal-lexical-components). */
  var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;

  /** Used to match `RegExp` flags from their coerced string values. */
  var reFlags = /\w*$/;

  /** Used to detect hexadecimal string values. */
  var reHasHexPrefix = /^0[xX]/;

  /** Used to detect host constructors (Safari > 5). */
  var reIsHostCtor = /^\[object .+?Constructor\]$/;

  /** Used to detect unsigned integer values. */
  var reIsUint = /^\d+$/;

  /** Used to match latin-1 supplementary letters (excluding mathematical operators). */
  var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g;

  /** Used to ensure capturing order of template delimiters. */
  var reNoMatch = /($^)/;

  /** Used to match unescaped characters in compiled string literals. */
  var reUnescapedString = /['\n\r\u2028\u2029\\]/g;

  /** Used to match words to create compound words. */
  var reWords = (function() {
    var upper = '[A-Z\\xc0-\\xd6\\xd8-\\xde]',
        lower = '[a-z\\xdf-\\xf6\\xf8-\\xff]+';

    return RegExp(upper + '+(?=' + upper + lower + ')|' + upper + '?' + lower + '|' + upper + '+|[0-9]+', 'g');
  }());

  /** Used to assign default `context` object properties. */
  var contextProps = [
    'Array', 'ArrayBuffer', 'Date', 'Error', 'Float32Array', 'Float64Array',
    'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Math', 'Number',
    'Object', 'RegExp', 'Set', 'String', '_', 'clearTimeout', 'isFinite',
    'parseFloat', 'parseInt', 'setTimeout', 'TypeError', 'Uint8Array',
    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap'
  ];

  /** Used to make template sourceURLs easier to identify. */
  var templateCounter = -1;

  /** Used to identify `toStringTag` values of typed arrays. */
  var typedArrayTags = {};
  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
  typedArrayTags[uint32Tag] = true;
  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
  typedArrayTags[dateTag] = typedArrayTags[errorTag] =
  typedArrayTags[funcTag] = typedArrayTags[mapTag] =
  typedArrayTags[numberTag] = typedArrayTags[objectTag] =
  typedArrayTags[regexpTag] = typedArrayTags[setTag] =
  typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;

  /** Used to identify `toStringTag` values supported by `_.clone`. */
  var cloneableTags = {};
  cloneableTags[argsTag] = cloneableTags[arrayTag] =
  cloneableTags[arrayBufferTag] = cloneableTags[boolTag] =
  cloneableTags[dateTag] = cloneableTags[float32Tag] =
  cloneableTags[float64Tag] = cloneableTags[int8Tag] =
  cloneableTags[int16Tag] = cloneableTags[int32Tag] =
  cloneableTags[numberTag] = cloneableTags[objectTag] =
  cloneableTags[regexpTag] = cloneableTags[stringTag] =
  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
  cloneableTags[errorTag] = cloneableTags[funcTag] =
  cloneableTags[mapTag] = cloneableTags[setTag] =
  cloneableTags[weakMapTag] = false;

  /** Used to map latin-1 supplementary letters to basic latin letters. */
  var deburredLetters = {
    '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
    '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
    '\xc7': 'C',  '\xe7': 'c',
    '\xd0': 'D',  '\xf0': 'd',
    '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
    '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
    '\xcC': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
    '\xeC': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
    '\xd1': 'N',  '\xf1': 'n',
    '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
    '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
    '\xd9': 'U',  '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
    '\xf9': 'u',  '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
    '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
    '\xc6': 'Ae', '\xe6': 'ae',
    '\xde': 'Th', '\xfe': 'th',
    '\xdf': 'ss'
  };

  /** Used to map characters to HTML entities. */
  var htmlEscapes = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#39;',
    '`': '&#96;'
  };

  /** Used to map HTML entities to characters. */
  var htmlUnescapes = {
    '&amp;': '&',
    '&lt;': '<',
    '&gt;': '>',
    '&quot;': '"',
    '&#39;': "'",
    '&#96;': '`'
  };

  /** Used to determine if values are of the language type `Object`. */
  var objectTypes = {
    'function': true,
    'object': true
  };

  /** Used to escape characters for inclusion in compiled regexes. */
  var regexpEscapes = {
    '0': 'x30', '1': 'x31', '2': 'x32', '3': 'x33', '4': 'x34',
    '5': 'x35', '6': 'x36', '7': 'x37', '8': 'x38', '9': 'x39',
    'A': 'x41', 'B': 'x42', 'C': 'x43', 'D': 'x44', 'E': 'x45', 'F': 'x46',
    'a': 'x61', 'b': 'x62', 'c': 'x63', 'd': 'x64', 'e': 'x65', 'f': 'x66',
    'n': 'x6e', 'r': 'x72', 't': 'x74', 'u': 'x75', 'v': 'x76', 'x': 'x78'
  };

  /** Used to escape characters for inclusion in compiled string literals. */
  var stringEscapes = {
    '\\': '\\',
    "'": "'",
    '\n': 'n',
    '\r': 'r',
    '\u2028': 'u2028',
    '\u2029': 'u2029'
  };

  /** Detect free variable `exports`. */
  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;

  /** Detect free variable `module`. */
  var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;

  /** Detect free variable `global` from Node.js. */
  var freeGlobal = freeExports && freeModule && typeof global == 'object' && global && global.Object && global;

  /** Detect free variable `self`. */
  var freeSelf = objectTypes[typeof self] && self && self.Object && self;

  /** Detect free variable `window`. */
  var freeWindow = objectTypes[typeof window] && window && window.Object && window;

  /** Detect the popular CommonJS extension `module.exports`. */
  var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;

  /**
   * Used as a reference to the global object.
   *
   * The `this` value is used if it's the global object to avoid Greasemonkey's
   * restricted `window` object, otherwise the `window` object is used.
   */
  var root = freeGlobal || ((freeWindow !== (this && this.window)) && freeWindow) || freeSelf || this;

  /*--------------------------------------------------------------------------*/

  /**
   * The base implementation of `compareAscending` which compares values and
   * sorts them in ascending order without guaranteeing a stable sort.
   *
   * @private
   * @param {*} value The value to compare.
   * @param {*} other The other value to compare.
   * @returns {number} Returns the sort order indicator for `value`.
   */
  function baseCompareAscending(value, other) {
    if (value !== other) {
      var valIsNull = value === null,
          valIsUndef = value === undefined,
          valIsReflexive = value === value;

      var othIsNull = other === null,
          othIsUndef = other === undefined,
          othIsReflexive = other === other;

      if ((value > other && !othIsNull) || !valIsReflexive ||
          (valIsNull && !othIsUndef && othIsReflexive) ||
          (valIsUndef && othIsReflexive)) {
        return 1;
      }
      if ((value < other && !valIsNull) || !othIsReflexive ||
          (othIsNull && !valIsUndef && valIsReflexive) ||
          (othIsUndef && valIsReflexive)) {
        return -1;
      }
    }
    return 0;
  }

  /**
   * The base implementation of `_.findIndex` and `_.findLastIndex` without
   * support for callback shorthands and `this` binding.
   *
   * @private
   * @param {Array} array The array to search.
   * @param {Function} predicate The function invoked per iteration.
   * @param {boolean} [fromRight] Specify iterating from right to left.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseFindIndex(array, predicate, fromRight) {
    var length = array.length,
        index = fromRight ? length : -1;

    while ((fromRight ? index-- : ++index < length)) {
      if (predicate(array[index], index, array)) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.indexOf` without support for binary searches.
   *
   * @private
   * @param {Array} array The array to search.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseIndexOf(array, value, fromIndex) {
    if (value !== value) {
      return indexOfNaN(array, fromIndex);
    }
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (array[index] === value) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.isFunction` without support for environments
   * with incorrect `typeof` results.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
   */
  function baseIsFunction(value) {
    // Avoid a Chakra JIT bug in compatibility modes of IE 11.
    // See https://github.com/jashkenas/underscore/issues/1621 for more details.
    return typeof value == 'function' || false;
  }

  /**
   * Converts `value` to a string if it's not one. An empty string is returned
   * for `null` or `undefined` values.
   *
   * @private
   * @param {*} value The value to process.
   * @returns {string} Returns the string.
   */
  function baseToString(value) {
    return value == null ? '' : (value + '');
  }

  /**
   * Used by `_.trim` and `_.trimLeft` to get the index of the first character
   * of `string` that is not found in `chars`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @param {string} chars The characters to find.
   * @returns {number} Returns the index of the first character not found in `chars`.
   */
  function charsLeftIndex(string, chars) {
    var index = -1,
        length = string.length;

    while (++index < length && chars.indexOf(string.charAt(index)) > -1) {}
    return index;
  }

  /**
   * Used by `_.trim` and `_.trimRight` to get the index of the last character
   * of `string` that is not found in `chars`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @param {string} chars The characters to find.
   * @returns {number} Returns the index of the last character not found in `chars`.
   */
  function charsRightIndex(string, chars) {
    var index = string.length;

    while (index-- && chars.indexOf(string.charAt(index)) > -1) {}
    return index;
  }

  /**
   * Used by `_.sortBy` to compare transformed elements of a collection and stable
   * sort them in ascending order.
   *
   * @private
   * @param {Object} object The object to compare.
   * @param {Object} other The other object to compare.
   * @returns {number} Returns the sort order indicator for `object`.
   */
  function compareAscending(object, other) {
    return baseCompareAscending(object.criteria, other.criteria) || (object.index - other.index);
  }

  /**
   * Used by `_.sortByOrder` to compare multiple properties of a value to another
   * and stable sort them.
   *
   * If `orders` is unspecified, all valuess are sorted in ascending order. Otherwise,
   * a value is sorted in ascending order if its corresponding order is "asc", and
   * descending if "desc".
   *
   * @private
   * @param {Object} object The object to compare.
   * @param {Object} other The other object to compare.
   * @param {boolean[]} orders The order to sort by for each property.
   * @returns {number} Returns the sort order indicator for `object`.
   */
  function compareMultiple(object, other, orders) {
    var index = -1,
        objCriteria = object.criteria,
        othCriteria = other.criteria,
        length = objCriteria.length,
        ordersLength = orders.length;

    while (++index < length) {
      var result = baseCompareAscending(objCriteria[index], othCriteria[index]);
      if (result) {
        if (index >= ordersLength) {
          return result;
        }
        var order = orders[index];
        return result * ((order === 'asc' || order === true) ? 1 : -1);
      }
    }
    // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
    // that causes it, under certain circumstances, to provide the same value for
    // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
    // for more details.
    //
    // This also ensures a stable sort in V8 and other engines.
    // See https://code.google.com/p/v8/issues/detail?id=90 for more details.
    return object.index - other.index;
  }

  /**
   * Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters.
   *
   * @private
   * @param {string} letter The matched letter to deburr.
   * @returns {string} Returns the deburred letter.
   */
  function deburrLetter(letter) {
    return deburredLetters[letter];
  }

  /**
   * Used by `_.escape` to convert characters to HTML entities.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  function escapeHtmlChar(chr) {
    return htmlEscapes[chr];
  }

  /**
   * Used by `_.escapeRegExp` to escape characters for inclusion in compiled regexes.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @param {string} leadingChar The capture group for a leading character.
   * @param {string} whitespaceChar The capture group for a whitespace character.
   * @returns {string} Returns the escaped character.
   */
  function escapeRegExpChar(chr, leadingChar, whitespaceChar) {
    if (leadingChar) {
      chr = regexpEscapes[chr];
    } else if (whitespaceChar) {
      chr = stringEscapes[chr];
    }
    return '\\' + chr;
  }

  /**
   * Used by `_.template` to escape characters for inclusion in compiled string literals.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  function escapeStringChar(chr) {
    return '\\' + stringEscapes[chr];
  }

  /**
   * Gets the index at which the first occurrence of `NaN` is found in `array`.
   *
   * @private
   * @param {Array} array The array to search.
   * @param {number} fromIndex The index to search from.
   * @param {boolean} [fromRight] Specify iterating from right to left.
   * @returns {number} Returns the index of the matched `NaN`, else `-1`.
   */
  function indexOfNaN(array, fromIndex, fromRight) {
    var length = array.length,
        index = fromIndex + (fromRight ? 0 : -1);

    while ((fromRight ? index-- : ++index < length)) {
      var other = array[index];
      if (other !== other) {
        return index;
      }
    }
    return -1;
  }

  /**
   * Checks if `value` is object-like.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
   */
  function isObjectLike(value) {
    return !!value && typeof value == 'object';
  }

  /**
   * Used by `trimmedLeftIndex` and `trimmedRightIndex` to determine if a
   * character code is whitespace.
   *
   * @private
   * @param {number} charCode The character code to inspect.
   * @returns {boolean} Returns `true` if `charCode` is whitespace, else `false`.
   */
  function isSpace(charCode) {
    return ((charCode <= 160 && (charCode >= 9 && charCode <= 13) || charCode == 32 || charCode == 160) || charCode == 5760 || charCode == 6158 ||
      (charCode >= 8192 && (charCode <= 8202 || charCode == 8232 || charCode == 8233 || charCode == 8239 || charCode == 8287 || charCode == 12288 || charCode == 65279)));
  }

  /**
   * Replaces all `placeholder` elements in `array` with an internal placeholder
   * and returns an array of their indexes.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {*} placeholder The placeholder to replace.
   * @returns {Array} Returns the new array of placeholder indexes.
   */
  function replaceHolders(array, placeholder) {
    var index = -1,
        length = array.length,
        resIndex = -1,
        result = [];

    while (++index < length) {
      if (array[index] === placeholder) {
        array[index] = PLACEHOLDER;
        result[++resIndex] = index;
      }
    }
    return result;
  }

  /**
   * An implementation of `_.uniq` optimized for sorted arrays without support
   * for callback shorthands and `this` binding.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {Function} [iteratee] The function invoked per iteration.
   * @returns {Array} Returns the new duplicate-value-free array.
   */
  function sortedUniq(array, iteratee) {
    var seen,
        index = -1,
        length = array.length,
        resIndex = -1,
        result = [];

    while (++index < length) {
      var value = array[index],
          computed = iteratee ? iteratee(value, index, array) : value;

      if (!index || seen !== computed) {
        seen = computed;
        result[++resIndex] = value;
      }
    }
    return result;
  }

  /**
   * Used by `_.trim` and `_.trimLeft` to get the index of the first non-whitespace
   * character of `string`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {number} Returns the index of the first non-whitespace character.
   */
  function trimmedLeftIndex(string) {
    var index = -1,
        length = string.length;

    while (++index < length && isSpace(string.charCodeAt(index))) {}
    return index;
  }

  /**
   * Used by `_.trim` and `_.trimRight` to get the index of the last non-whitespace
   * character of `string`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {number} Returns the index of the last non-whitespace character.
   */
  function trimmedRightIndex(string) {
    var index = string.length;

    while (index-- && isSpace(string.charCodeAt(index))) {}
    return index;
  }

  /**
   * Used by `_.unescape` to convert HTML entities to characters.
   *
   * @private
   * @param {string} chr The matched character to unescape.
   * @returns {string} Returns the unescaped character.
   */
  function unescapeHtmlChar(chr) {
    return htmlUnescapes[chr];
  }

  /*--------------------------------------------------------------------------*/

  /**
   * Create a new pristine `lodash` function using the given `context` object.
   *
   * @static
   * @memberOf _
   * @category Utility
   * @param {Object} [context=root] The context object.
   * @returns {Function} Returns a new `lodash` function.
   * @example
   *
   * _.mixin({ 'foo': _.constant('foo') });
   *
   * var lodash = _.runInContext();
   * lodash.mixin({ 'bar': lodash.constant('bar') });
   *
   * _.isFunction(_.foo);
   * // => true
   * _.isFunction(_.bar);
   * // => false
   *
   * lodash.isFunction(lodash.foo);
   * // => false
   * lodash.isFunction(lodash.bar);
   * // => true
   *
   * // using `context` to mock `Date#getTime` use in `_.now`
   * var mock = _.runInContext({
   *   'Date': function() {
   *     return { 'getTime': getTimeMock };
   *   }
   * });
   *
   * // or creating a suped-up `defer` in Node.js
   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
   */
  function runInContext(context) {
    // Avoid issues with some ES3 environments that attempt to use values, named
    // after built-in constructors like `Object`, for the creation of literals.
    // ES5 clears this up by stating that literals must use built-in constructors.
    // See https://es5.github.io/#x11.1.5 for more details.
    context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;

    /** Native constructor references. */
    var Array = context.Array,
        Date = context.Date,
        Error = context.Error,
        Function = context.Function,
        Math = context.Math,
        Number = context.Number,
        Object = context.Object,
        RegExp = context.RegExp,
        String = context.String,
        TypeError = context.TypeError;

    /** Used for native method references. */
    var arrayProto = Array.prototype,
        objectProto = Object.prototype,
        stringProto = String.prototype;

    /** Used to resolve the decompiled source of functions. */
    var fnToString = Function.prototype.toString;

    /** Used to check objects for own properties. */
    var hasOwnProperty = objectProto.hasOwnProperty;

    /** Used to generate unique IDs. */
    var idCounter = 0;

    /**
     * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
     * of values.
     */
    var objToString = objectProto.toString;

    /** Used to restore the original `_` reference in `_.noConflict`. */
    var oldDash = root._;

    /** Used to detect if a method is native. */
    var reIsNative = RegExp('^' +
      fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
      .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
    );

    /** Native method references. */
    var ArrayBuffer = context.ArrayBuffer,
        clearTimeout = context.clearTimeout,
        parseFloat = context.parseFloat,
        pow = Math.pow,
        propertyIsEnumerable = objectProto.propertyIsEnumerable,
        Set = getNative(context, 'Set'),
        setTimeout = context.setTimeout,
        splice = arrayProto.splice,
        Uint8Array = context.Uint8Array,
        WeakMap = getNative(context, 'WeakMap');

    /* Native method references for those with the same name as other `lodash` methods. */
    var nativeCeil = Math.ceil,
        nativeCreate = getNative(Object, 'create'),
        nativeFloor = Math.floor,
        nativeIsArray = getNative(Array, 'isArray'),
        nativeIsFinite = context.isFinite,
        nativeKeys = getNative(Object, 'keys'),
        nativeMax = Math.max,
        nativeMin = Math.min,
        nativeNow = getNative(Date, 'now'),
        nativeParseInt = context.parseInt,
        nativeRandom = Math.random;

    /** Used as references for `-Infinity` and `Infinity`. */
    var NEGATIVE_INFINITY = Number.NEGATIVE_INFINITY,
        POSITIVE_INFINITY = Number.POSITIVE_INFINITY;

    /** Used as references for the maximum length and index of an array. */
    var MAX_ARRAY_LENGTH = 4294967295,
        MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
        HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;

    /**
     * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
     * of an array-like value.
     */
    var MAX_SAFE_INTEGER = 9007199254740991;

    /** Used to store function metadata. */
    var metaMap = WeakMap && new WeakMap;

    /** Used to lookup unminified function names. */
    var realNames = {};

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` object which wraps `value` to enable implicit chaining.
     * Methods that operate on and return arrays, collections, and functions can
     * be chained together. Methods that retrieve a single value or may return a
     * primitive value will automatically end the chain returning the unwrapped
     * value. Explicit chaining may be enabled using `_.chain`. The execution of
     * chained methods is lazy, that is, execution is deferred until `_#value`
     * is implicitly or explicitly called.
     *
     * Lazy evaluation allows several methods to support shortcut fusion. Shortcut
     * fusion is an optimization strategy which merge iteratee calls; this can help
     * to avoid the creation of intermediate data structures and greatly reduce the
     * number of iteratee executions.
     *
     * Chaining is supported in custom builds as long as the `_#value` method is
     * directly or indirectly included in the build.
     *
     * In addition to lodash methods, wrappers have `Array` and `String` methods.
     *
     * The wrapper `Array` methods are:
     * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`,
     * `splice`, and `unshift`
     *
     * The wrapper `String` methods are:
     * `replace` and `split`
     *
     * The wrapper methods that support shortcut fusion are:
     * `compact`, `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`,
     * `first`, `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`,
     * `slice`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, `toArray`,
     * and `where`
     *
     * The chainable wrapper methods are:
     * `after`, `ary`, `assign`, `at`, `before`, `bind`, `bindAll`, `bindKey`,
     * `callback`, `chain`, `chunk`, `commit`, `compact`, `concat`, `constant`,
     * `countBy`, `create`, `curry`, `debounce`, `defaults`, `defaultsDeep`,
     * `defer`, `delay`, `difference`, `drop`, `dropRight`, `dropRightWhile`,
     * `dropWhile`, `fill`, `filter`, `flatten`, `flattenDeep`, `flow`, `flowRight`,
     * `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
     * `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
     * `invoke`, `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`,
     * `matchesProperty`, `memoize`, `merge`, `method`, `methodOf`, `mixin`,
     * `modArgs`, `negate`, `omit`, `once`, `pairs`, `partial`, `partialRight`,
     * `partition`, `pick`, `plant`, `pluck`, `property`, `propertyOf`, `pull`,
     * `pullAt`, `push`, `range`, `rearg`, `reject`, `remove`, `rest`, `restParam`,
     * `reverse`, `set`, `shuffle`, `slice`, `sort`, `sortBy`, `sortByAll`,
     * `sortByOrder`, `splice`, `spread`, `take`, `takeRight`, `takeRightWhile`,
     * `takeWhile`, `tap`, `throttle`, `thru`, `times`, `toArray`, `toPlainObject`,
     * `transform`, `union`, `uniq`, `unshift`, `unzip`, `unzipWith`, `values`,
     * `valuesIn`, `where`, `without`, `wrap`, `xor`, `zip`, `zipObject`, `zipWith`
     *
     * The wrapper methods that are **not** chainable by default are:
     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clone`, `cloneDeep`,
     * `deburr`, `endsWith`, `escape`, `escapeRegExp`, `every`, `find`, `findIndex`,
     * `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `findWhere`, `first`,
     * `floor`, `get`, `gt`, `gte`, `has`, `identity`, `includes`, `indexOf`,
     * `inRange`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
     * `isEmpty`, `isEqual`, `isError`, `isFinite` `isFunction`, `isMatch`,
     * `isNative`, `isNaN`, `isNull`, `isNumber`, `isObject`, `isPlainObject`,
     * `isRegExp`, `isString`, `isUndefined`, `isTypedArray`, `join`, `kebabCase`,
     * `last`, `lastIndexOf`, `lt`, `lte`, `max`, `min`, `noConflict`, `noop`,
     * `now`, `pad`, `padLeft`, `padRight`, `parseInt`, `pop`, `random`, `reduce`,
     * `reduceRight`, `repeat`, `result`, `round`, `runInContext`, `shift`, `size`,
     * `snakeCase`, `some`, `sortedIndex`, `sortedLastIndex`, `startCase`,
     * `startsWith`, `sum`, `template`, `trim`, `trimLeft`, `trimRight`, `trunc`,
     * `unescape`, `uniqueId`, `value`, and `words`
     *
     * The wrapper method `sample` will return a wrapped value when `n` is provided,
     * otherwise an unwrapped value is returned.
     *
     * @name _
     * @constructor
     * @category Chain
     * @param {*} value The value to wrap in a `lodash` instance.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var wrapped = _([1, 2, 3]);
     *
     * // returns an unwrapped value
     * wrapped.reduce(function(total, n) {
     *   return total + n;
     * });
     * // => 6
     *
     * // returns a wrapped value
     * var squares = wrapped.map(function(n) {
     *   return n * n;
     * });
     *
     * _.isArray(squares);
     * // => false
     *
     * _.isArray(squares.value());
     * // => true
     */
    function lodash(value) {
      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
        if (value instanceof LodashWrapper) {
          return value;
        }
        if (hasOwnProperty.call(value, '__chain__') && hasOwnProperty.call(value, '__wrapped__')) {
          return wrapperClone(value);
        }
      }
      return new LodashWrapper(value);
    }

    /**
     * The function whose prototype all chaining wrappers inherit from.
     *
     * @private
     */
    function baseLodash() {
      // No operation performed.
    }

    /**
     * The base constructor for creating `lodash` wrapper objects.
     *
     * @private
     * @param {*} value The value to wrap.
     * @param {boolean} [chainAll] Enable chaining for all wrapper methods.
     * @param {Array} [actions=[]] Actions to peform to resolve the unwrapped value.
     */
    function LodashWrapper(value, chainAll, actions) {
      this.__wrapped__ = value;
      this.__actions__ = actions || [];
      this.__chain__ = !!chainAll;
    }

    /**
     * An object environment feature flags.
     *
     * @static
     * @memberOf _
     * @type Object
     */
    var support = lodash.support = {};

    /**
     * By default, the template delimiters used by lodash are like those in
     * embedded Ruby (ERB). Change the following template settings to use
     * alternative delimiters.
     *
     * @static
     * @memberOf _
     * @type Object
     */
    lodash.templateSettings = {

      /**
       * Used to detect `data` property values to be HTML-escaped.
       *
       * @memberOf _.templateSettings
       * @type RegExp
       */
      'escape': reEscape,

      /**
       * Used to detect code to be evaluated.
       *
       * @memberOf _.templateSettings
       * @type RegExp
       */
      'evaluate': reEvaluate,

      /**
       * Used to detect `data` property values to inject.
       *
       * @memberOf _.templateSettings
       * @type RegExp
       */
      'interpolate': reInterpolate,

      /**
       * Used to reference the data object in the template text.
       *
       * @memberOf _.templateSettings
       * @type string
       */
      'variable': '',

      /**
       * Used to import variables into the compiled template.
       *
       * @memberOf _.templateSettings
       * @type Object
       */
      'imports': {

        /**
         * A reference to the `lodash` function.
         *
         * @memberOf _.templateSettings.imports
         * @type Function
         */
        '_': lodash
      }
    };

    /*------------------------------------------------------------------------*/

    /**
     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
     *
     * @private
     * @param {*} value The value to wrap.
     */
    function LazyWrapper(value) {
      this.__wrapped__ = value;
      this.__actions__ = [];
      this.__dir__ = 1;
      this.__filtered__ = false;
      this.__iteratees__ = [];
      this.__takeCount__ = POSITIVE_INFINITY;
      this.__views__ = [];
    }

    /**
     * Creates a clone of the lazy wrapper object.
     *
     * @private
     * @name clone
     * @memberOf LazyWrapper
     * @returns {Object} Returns the cloned `LazyWrapper` object.
     */
    function lazyClone() {
      var result = new LazyWrapper(this.__wrapped__);
      result.__actions__ = arrayCopy(this.__actions__);
      result.__dir__ = this.__dir__;
      result.__filtered__ = this.__filtered__;
      result.__iteratees__ = arrayCopy(this.__iteratees__);
      result.__takeCount__ = this.__takeCount__;
      result.__views__ = arrayCopy(this.__views__);
      return result;
    }

    /**
     * Reverses the direction of lazy iteration.
     *
     * @private
     * @name reverse
     * @memberOf LazyWrapper
     * @returns {Object} Returns the new reversed `LazyWrapper` object.
     */
    function lazyReverse() {
      if (this.__filtered__) {
        var result = new LazyWrapper(this);
        result.__dir__ = -1;
        result.__filtered__ = true;
      } else {
        result = this.clone();
        result.__dir__ *= -1;
      }
      return result;
    }

    /**
     * Extracts the unwrapped value from its lazy wrapper.
     *
     * @private
     * @name value
     * @memberOf LazyWrapper
     * @returns {*} Returns the unwrapped value.
     */
    function lazyValue() {
      var array = this.__wrapped__.value(),
          dir = this.__dir__,
          isArr = isArray(array),
          isRight = dir < 0,
          arrLength = isArr ? array.length : 0,
          view = getView(0, arrLength, this.__views__),
          start = view.start,
          end = view.end,
          length = end - start,
          index = isRight ? end : (start - 1),
          iteratees = this.__iteratees__,
          iterLength = iteratees.length,
          resIndex = 0,
          takeCount = nativeMin(length, this.__takeCount__);

      if (!isArr || arrLength < LARGE_ARRAY_SIZE || (arrLength == length && takeCount == length)) {
        return baseWrapperValue((isRight && isArr) ? array.reverse() : array, this.__actions__);
      }
      var result = [];

      outer:
      while (length-- && resIndex < takeCount) {
        index += dir;

        var iterIndex = -1,
            value = array[index];

        while (++iterIndex < iterLength) {
          var data = iteratees[iterIndex],
              iteratee = data.iteratee,
              type = data.type,
              computed = iteratee(value);

          if (type == LAZY_MAP_FLAG) {
            value = computed;
          } else if (!computed) {
            if (type == LAZY_FILTER_FLAG) {
              continue outer;
            } else {
              break outer;
            }
          }
        }
        result[resIndex++] = value;
      }
      return result;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates a cache object to store key/value pairs.
     *
     * @private
     * @static
     * @name Cache
     * @memberOf _.memoize
     */
    function MapCache() {
      this.__data__ = {};
    }

    /**
     * Removes `key` and its value from the cache.
     *
     * @private
     * @name delete
     * @memberOf _.memoize.Cache
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed successfully, else `false`.
     */
    function mapDelete(key) {
      return this.has(key) && delete this.__data__[key];
    }

    /**
     * Gets the cached value for `key`.
     *
     * @private
     * @name get
     * @memberOf _.memoize.Cache
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the cached value.
     */
    function mapGet(key) {
      return key == '__proto__' ? undefined : this.__data__[key];
    }

    /**
     * Checks if a cached value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf _.memoize.Cache
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function mapHas(key) {
      return key != '__proto__' && hasOwnProperty.call(this.__data__, key);
    }

    /**
     * Sets `value` to `key` of the cache.
     *
     * @private
     * @name set
     * @memberOf _.memoize.Cache
     * @param {string} key The key of the value to cache.
     * @param {*} value The value to cache.
     * @returns {Object} Returns the cache object.
     */
    function mapSet(key, value) {
      if (key != '__proto__') {
        this.__data__[key] = value;
      }
      return this;
    }

    /*------------------------------------------------------------------------*/

    /**
     *
     * Creates a cache object to store unique values.
     *
     * @private
     * @param {Array} [values] The values to cache.
     */
    function SetCache(values) {
      var length = values ? values.length : 0;

      this.data = { 'hash': nativeCreate(null), 'set': new Set };
      while (length--) {
        this.push(values[length]);
      }
    }

    /**
     * Checks if `value` is in `cache` mimicking the return signature of
     * `_.indexOf` by returning `0` if the value is found, else `-1`.
     *
     * @private
     * @param {Object} cache The cache to search.
     * @param {*} value The value to search for.
     * @returns {number} Returns `0` if `value` is found, else `-1`.
     */
    function cacheIndexOf(cache, value) {
      var data = cache.data,
          result = (typeof value == 'string' || isObject(value)) ? data.set.has(value) : data.hash[value];

      return result ? 0 : -1;
    }

    /**
     * Adds `value` to the cache.
     *
     * @private
     * @name push
     * @memberOf SetCache
     * @param {*} value The value to cache.
     */
    function cachePush(value) {
      var data = this.data;
      if (typeof value == 'string' || isObject(value)) {
        data.set.add(value);
      } else {
        data.hash[value] = true;
      }
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates a new array joining `array` with `other`.
     *
     * @private
     * @param {Array} array The array to join.
     * @param {Array} other The other array to join.
     * @returns {Array} Returns the new concatenated array.
     */
    function arrayConcat(array, other) {
      var index = -1,
          length = array.length,
          othIndex = -1,
          othLength = other.length,
          result = Array(length + othLength);

      while (++index < length) {
        result[index] = array[index];
      }
      while (++othIndex < othLength) {
        result[index++] = other[othIndex];
      }
      return result;
    }

    /**
     * Copies the values of `source` to `array`.
     *
     * @private
     * @param {Array} source The array to copy values from.
     * @param {Array} [array=[]] The array to copy values to.
     * @returns {Array} Returns `array`.
     */
    function arrayCopy(source, array) {
      var index = -1,
          length = source.length;

      array || (array = Array(length));
      while (++index < length) {
        array[index] = source[index];
      }
      return array;
    }

    /**
     * A specialized version of `_.forEach` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns `array`.
     */
    function arrayEach(array, iteratee) {
      var index = -1,
          length = array.length;

      while (++index < length) {
        if (iteratee(array[index], index, array) === false) {
          break;
        }
      }
      return array;
    }

    /**
     * A specialized version of `_.forEachRight` for arrays without support for
     * callback shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns `array`.
     */
    function arrayEachRight(array, iteratee) {
      var length = array.length;

      while (length--) {
        if (iteratee(array[length], length, array) === false) {
          break;
        }
      }
      return array;
    }

    /**
     * A specialized version of `_.every` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`.
     */
    function arrayEvery(array, predicate) {
      var index = -1,
          length = array.length;

      while (++index < length) {
        if (!predicate(array[index], index, array)) {
          return false;
        }
      }
      return true;
    }

    /**
     * A specialized version of `baseExtremum` for arrays which invokes `iteratee`
     * with one argument: (value).
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} comparator The function used to compare values.
     * @param {*} exValue The initial extremum value.
     * @returns {*} Returns the extremum value.
     */
    function arrayExtremum(array, iteratee, comparator, exValue) {
      var index = -1,
          length = array.length,
          computed = exValue,
          result = computed;

      while (++index < length) {
        var value = array[index],
            current = +iteratee(value);

        if (comparator(current, computed)) {
          computed = current;
          result = value;
        }
      }
      return result;
    }

    /**
     * A specialized version of `_.filter` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     */
    function arrayFilter(array, predicate) {
      var index = -1,
          length = array.length,
          resIndex = -1,
          result = [];

      while (++index < length) {
        var value = array[index];
        if (predicate(value, index, array)) {
          result[++resIndex] = value;
        }
      }
      return result;
    }

    /**
     * A specialized version of `_.map` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     */
    function arrayMap(array, iteratee) {
      var index = -1,
          length = array.length,
          result = Array(length);

      while (++index < length) {
        result[index] = iteratee(array[index], index, array);
      }
      return result;
    }

    /**
     * Appends the elements of `values` to `array`.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {Array} values The values to append.
     * @returns {Array} Returns `array`.
     */
    function arrayPush(array, values) {
      var index = -1,
          length = values.length,
          offset = array.length;

      while (++index < length) {
        array[offset + index] = values[index];
      }
      return array;
    }

    /**
     * A specialized version of `_.reduce` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @param {boolean} [initFromArray] Specify using the first element of `array`
     *  as the initial value.
     * @returns {*} Returns the accumulated value.
     */
    function arrayReduce(array, iteratee, accumulator, initFromArray) {
      var index = -1,
          length = array.length;

      if (initFromArray && length) {
        accumulator = array[++index];
      }
      while (++index < length) {
        accumulator = iteratee(accumulator, array[index], index, array);
      }
      return accumulator;
    }

    /**
     * A specialized version of `_.reduceRight` for arrays without support for
     * callback shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @param {boolean} [initFromArray] Specify using the last element of `array`
     *  as the initial value.
     * @returns {*} Returns the accumulated value.
     */
    function arrayReduceRight(array, iteratee, accumulator, initFromArray) {
      var length = array.length;
      if (initFromArray && length) {
        accumulator = array[--length];
      }
      while (length--) {
        accumulator = iteratee(accumulator, array[length], length, array);
      }
      return accumulator;
    }

    /**
     * A specialized version of `_.some` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     */
    function arraySome(array, predicate) {
      var index = -1,
          length = array.length;

      while (++index < length) {
        if (predicate(array[index], index, array)) {
          return true;
        }
      }
      return false;
    }

    /**
     * A specialized version of `_.sum` for arrays without support for callback
     * shorthands and `this` binding..
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {number} Returns the sum.
     */
    function arraySum(array, iteratee) {
      var length = array.length,
          result = 0;

      while (length--) {
        result += +iteratee(array[length]) || 0;
      }
      return result;
    }

    /**
     * Used by `_.defaults` to customize its `_.assign` use.
     *
     * @private
     * @param {*} objectValue The destination object property value.
     * @param {*} sourceValue The source object property value.
     * @returns {*} Returns the value to assign to the destination object.
     */
    function assignDefaults(objectValue, sourceValue) {
      return objectValue === undefined ? sourceValue : objectValue;
    }

    /**
     * Used by `_.template` to customize its `_.assign` use.
     *
     * **Note:** This function is like `assignDefaults` except that it ignores
     * inherited property values when checking if a property is `undefined`.
     *
     * @private
     * @param {*} objectValue The destination object property value.
     * @param {*} sourceValue The source object property value.
     * @param {string} key The key associated with the object and source values.
     * @param {Object} object The destination object.
     * @returns {*} Returns the value to assign to the destination object.
     */
    function assignOwnDefaults(objectValue, sourceValue, key, object) {
      return (objectValue === undefined || !hasOwnProperty.call(object, key))
        ? sourceValue
        : objectValue;
    }

    /**
     * A specialized version of `_.assign` for customizing assigned values without
     * support for argument juggling, multiple sources, and `this` binding `customizer`
     * functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {Function} customizer The function to customize assigned values.
     * @returns {Object} Returns `object`.
     */
    function assignWith(object, source, customizer) {
      var index = -1,
          props = keys(source),
          length = props.length;

      while (++index < length) {
        var key = props[index],
            value = object[key],
            result = customizer(value, source[key], key, object, source);

        if ((result === result ? (result !== value) : (value === value)) ||
            (value === undefined && !(key in object))) {
          object[key] = result;
        }
      }
      return object;
    }

    /**
     * The base implementation of `_.assign` without support for argument juggling,
     * multiple sources, and `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @returns {Object} Returns `object`.
     */
    function baseAssign(object, source) {
      return source == null
        ? object
        : baseCopy(source, keys(source), object);
    }

    /**
     * The base implementation of `_.at` without support for string collections
     * and individual key arguments.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {number[]|string[]} props The property names or indexes of elements to pick.
     * @returns {Array} Returns the new array of picked elements.
     */
    function baseAt(collection, props) {
      var index = -1,
          isNil = collection == null,
          isArr = !isNil && isArrayLike(collection),
          length = isArr ? collection.length : 0,
          propsLength = props.length,
          result = Array(propsLength);

      while(++index < propsLength) {
        var key = props[index];
        if (isArr) {
          result[index] = isIndex(key, length) ? collection[key] : undefined;
        } else {
          result[index] = isNil ? undefined : collection[key];
        }
      }
      return result;
    }

    /**
     * Copies properties of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy properties from.
     * @param {Array} props The property names to copy.
     * @param {Object} [object={}] The object to copy properties to.
     * @returns {Object} Returns `object`.
     */
    function baseCopy(source, props, object) {
      object || (object = {});

      var index = -1,
          length = props.length;

      while (++index < length) {
        var key = props[index];
        object[key] = source[key];
      }
      return object;
    }

    /**
     * The base implementation of `_.callback` which supports specifying the
     * number of arguments to provide to `func`.
     *
     * @private
     * @param {*} [func=_.identity] The value to convert to a callback.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {number} [argCount] The number of arguments to provide to `func`.
     * @returns {Function} Returns the callback.
     */
    function baseCallback(func, thisArg, argCount) {
      var type = typeof func;
      if (type == 'function') {
        return thisArg === undefined
          ? func
          : bindCallback(func, thisArg, argCount);
      }
      if (func == null) {
        return identity;
      }
      if (type == 'object') {
        return baseMatches(func);
      }
      return thisArg === undefined
        ? property(func)
        : baseMatchesProperty(func, thisArg);
    }

    /**
     * The base implementation of `_.clone` without support for argument juggling
     * and `this` binding `customizer` functions.
     *
     * @private
     * @param {*} value The value to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @param {Function} [customizer] The function to customize cloning values.
     * @param {string} [key] The key of `value`.
     * @param {Object} [object] The object `value` belongs to.
     * @param {Array} [stackA=[]] Tracks traversed source objects.
     * @param {Array} [stackB=[]] Associates clones with source counterparts.
     * @returns {*} Returns the cloned value.
     */
    function baseClone(value, isDeep, customizer, key, object, stackA, stackB) {
      var result;
      if (customizer) {
        result = object ? customizer(value, key, object) : customizer(value);
      }
      if (result !== undefined) {
        return result;
      }
      if (!isObject(value)) {
        return value;
      }
      var isArr = isArray(value);
      if (isArr) {
        result = initCloneArray(value);
        if (!isDeep) {
          return arrayCopy(value, result);
        }
      } else {
        var tag = objToString.call(value),
            isFunc = tag == funcTag;

        if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
          result = initCloneObject(isFunc ? {} : value);
          if (!isDeep) {
            return baseAssign(result, value);
          }
        } else {
          return cloneableTags[tag]
            ? initCloneByTag(value, tag, isDeep)
            : (object ? value : {});
        }
      }
      // Check for circular references and return its corresponding clone.
      stackA || (stackA = []);
      stackB || (stackB = []);

      var length = stackA.length;
      while (length--) {
        if (stackA[length] == value) {
          return stackB[length];
        }
      }
      // Add the source value to the stack of traversed objects and associate it with its clone.
      stackA.push(value);
      stackB.push(result);

      // Recursively populate clone (susceptible to call stack limits).
      (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
        result[key] = baseClone(subValue, isDeep, customizer, key, value, stackA, stackB);
      });
      return result;
    }

    /**
     * The base implementation of `_.create` without support for assigning
     * properties to the created object.
     *
     * @private
     * @param {Object} prototype The object to inherit from.
     * @returns {Object} Returns the new object.
     */
    var baseCreate = (function() {
      function object() {}
      return function(prototype) {
        if (isObject(prototype)) {
          object.prototype = prototype;
          var result = new object;
          object.prototype = undefined;
        }
        return result || {};
      };
    }());

    /**
     * The base implementation of `_.delay` and `_.defer` which accepts an index
     * of where to slice the arguments to provide to `func`.
     *
     * @private
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {Object} args The arguments provide to `func`.
     * @returns {number} Returns the timer id.
     */
    function baseDelay(func, wait, args) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return setTimeout(function() { func.apply(undefined, args); }, wait);
    }

    /**
     * The base implementation of `_.difference` which accepts a single array
     * of values to exclude.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Array} values The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     */
    function baseDifference(array, values) {
      var length = array ? array.length : 0,
          result = [];

      if (!length) {
        return result;
      }
      var index = -1,
          indexOf = getIndexOf(),
          isCommon = indexOf == baseIndexOf,
          cache = (isCommon && values.length >= LARGE_ARRAY_SIZE) ? createCache(values) : null,
          valuesLength = values.length;

      if (cache) {
        indexOf = cacheIndexOf;
        isCommon = false;
        values = cache;
      }
      outer:
      while (++index < length) {
        var value = array[index];

        if (isCommon && value === value) {
          var valuesIndex = valuesLength;
          while (valuesIndex--) {
            if (values[valuesIndex] === value) {
              continue outer;
            }
          }
          result.push(value);
        }
        else if (indexOf(values, value, 0) < 0) {
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.forEach` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object|string} Returns `collection`.
     */
    var baseEach = createBaseEach(baseForOwn);

    /**
     * The base implementation of `_.forEachRight` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object|string} Returns `collection`.
     */
    var baseEachRight = createBaseEach(baseForOwnRight, true);

    /**
     * The base implementation of `_.every` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`
     */
    function baseEvery(collection, predicate) {
      var result = true;
      baseEach(collection, function(value, index, collection) {
        result = !!predicate(value, index, collection);
        return result;
      });
      return result;
    }

    /**
     * Gets the extremum value of `collection` invoking `iteratee` for each value
     * in `collection` to generate the criterion by which the value is ranked.
     * The `iteratee` is invoked with three arguments: (value, index|key, collection).
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} comparator The function used to compare values.
     * @param {*} exValue The initial extremum value.
     * @returns {*} Returns the extremum value.
     */
    function baseExtremum(collection, iteratee, comparator, exValue) {
      var computed = exValue,
          result = computed;

      baseEach(collection, function(value, index, collection) {
        var current = +iteratee(value, index, collection);
        if (comparator(current, computed) || (current === exValue && current === result)) {
          computed = current;
          result = value;
        }
      });
      return result;
    }

    /**
     * The base implementation of `_.fill` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     */
    function baseFill(array, value, start, end) {
      var length = array.length;

      start = start == null ? 0 : (+start || 0);
      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = (end === undefined || end > length) ? length : (+end || 0);
      if (end < 0) {
        end += length;
      }
      length = start > end ? 0 : (end >>> 0);
      start >>>= 0;

      while (start < length) {
        array[start++] = value;
      }
      return array;
    }

    /**
     * The base implementation of `_.filter` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     */
    function baseFilter(collection, predicate) {
      var result = [];
      baseEach(collection, function(value, index, collection) {
        if (predicate(value, index, collection)) {
          result.push(value);
        }
      });
      return result;
    }

    /**
     * The base implementation of `_.find`, `_.findLast`, `_.findKey`, and `_.findLastKey`,
     * without support for callback shorthands and `this` binding, which iterates
     * over `collection` using the provided `eachFunc`.
     *
     * @private
     * @param {Array|Object|string} collection The collection to search.
     * @param {Function} predicate The function invoked per iteration.
     * @param {Function} eachFunc The function to iterate over `collection`.
     * @param {boolean} [retKey] Specify returning the key of the found element
     *  instead of the element itself.
     * @returns {*} Returns the found element or its key, else `undefined`.
     */
    function baseFind(collection, predicate, eachFunc, retKey) {
      var result;
      eachFunc(collection, function(value, key, collection) {
        if (predicate(value, key, collection)) {
          result = retKey ? key : value;
          return false;
        }
      });
      return result;
    }

    /**
     * The base implementation of `_.flatten` with added support for restricting
     * flattening and specifying the start index.
     *
     * @private
     * @param {Array} array The array to flatten.
     * @param {boolean} [isDeep] Specify a deep flatten.
     * @param {boolean} [isStrict] Restrict flattening to arrays-like objects.
     * @param {Array} [result=[]] The initial result value.
     * @returns {Array} Returns the new flattened array.
     */
    function baseFlatten(array, isDeep, isStrict, result) {
      result || (result = []);

      var index = -1,
          length = array.length;

      while (++index < length) {
        var value = array[index];
        if (isObjectLike(value) && isArrayLike(value) &&
            (isStrict || isArray(value) || isArguments(value))) {
          if (isDeep) {
            // Recursively flatten arrays (susceptible to call stack limits).
            baseFlatten(value, isDeep, isStrict, result);
          } else {
            arrayPush(result, value);
          }
        } else if (!isStrict) {
          result[result.length] = value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `baseForIn` and `baseForOwn` which iterates
     * over `object` properties returned by `keysFunc` invoking `iteratee` for
     * each property. Iteratee functions may exit iteration early by explicitly
     * returning `false`.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseFor = createBaseFor();

    /**
     * This function is like `baseFor` except that it iterates over properties
     * in the opposite order.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseForRight = createBaseFor(true);

    /**
     * The base implementation of `_.forIn` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForIn(object, iteratee) {
      return baseFor(object, iteratee, keysIn);
    }

    /**
     * The base implementation of `_.forOwn` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwn(object, iteratee) {
      return baseFor(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.forOwnRight` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwnRight(object, iteratee) {
      return baseForRight(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.functions` which creates an array of
     * `object` function property names filtered from those provided.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Array} props The property names to filter.
     * @returns {Array} Returns the new array of filtered property names.
     */
    function baseFunctions(object, props) {
      var index = -1,
          length = props.length,
          resIndex = -1,
          result = [];

      while (++index < length) {
        var key = props[index];
        if (isFunction(object[key])) {
          result[++resIndex] = key;
        }
      }
      return result;
    }

    /**
     * The base implementation of `get` without support for string paths
     * and default values.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array} path The path of the property to get.
     * @param {string} [pathKey] The key representation of path.
     * @returns {*} Returns the resolved value.
     */
    function baseGet(object, path, pathKey) {
      if (object == null) {
        return;
      }
      if (pathKey !== undefined && pathKey in toObject(object)) {
        path = [pathKey];
      }
      var index = 0,
          length = path.length;

      while (object != null && index < length) {
        object = object[path[index++]];
      }
      return (index && index == length) ? object : undefined;
    }

    /**
     * The base implementation of `_.isEqual` without support for `this` binding
     * `customizer` functions.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {Function} [customizer] The function to customize comparing values.
     * @param {boolean} [isLoose] Specify performing partial comparisons.
     * @param {Array} [stackA] Tracks traversed `value` objects.
     * @param {Array} [stackB] Tracks traversed `other` objects.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     */
    function baseIsEqual(value, other, customizer, isLoose, stackA, stackB) {
      if (value === other) {
        return true;
      }
      if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {
        return value !== value && other !== other;
      }
      return baseIsEqualDeep(value, other, baseIsEqual, customizer, isLoose, stackA, stackB);
    }

    /**
     * A specialized version of `baseIsEqual` for arrays and objects which performs
     * deep comparisons and tracks traversed objects enabling objects with circular
     * references to be compared.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Function} [customizer] The function to customize comparing objects.
     * @param {boolean} [isLoose] Specify performing partial comparisons.
     * @param {Array} [stackA=[]] Tracks traversed `value` objects.
     * @param {Array} [stackB=[]] Tracks traversed `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function baseIsEqualDeep(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
      var objIsArr = isArray(object),
          othIsArr = isArray(other),
          objTag = arrayTag,
          othTag = arrayTag;

      if (!objIsArr) {
        objTag = objToString.call(object);
        if (objTag == argsTag) {
          objTag = objectTag;
        } else if (objTag != objectTag) {
          objIsArr = isTypedArray(object);
        }
      }
      if (!othIsArr) {
        othTag = objToString.call(other);
        if (othTag == argsTag) {
          othTag = objectTag;
        } else if (othTag != objectTag) {
          othIsArr = isTypedArray(other);
        }
      }
      var objIsObj = objTag == objectTag,
          othIsObj = othTag == objectTag,
          isSameTag = objTag == othTag;

      if (isSameTag && !(objIsArr || objIsObj)) {
        return equalByTag(object, other, objTag);
      }
      if (!isLoose) {
        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');

        if (objIsWrapped || othIsWrapped) {
          return equalFunc(objIsWrapped ? object.value() : object, othIsWrapped ? other.value() : other, customizer, isLoose, stackA, stackB);
        }
      }
      if (!isSameTag) {
        return false;
      }
      // Assume cyclic values are equal.
      // For more information on detecting circular references see https://es5.github.io/#JO.
      stackA || (stackA = []);
      stackB || (stackB = []);

      var length = stackA.length;
      while (length--) {
        if (stackA[length] == object) {
          return stackB[length] == other;
        }
      }
      // Add `object` and `other` to the stack of traversed objects.
      stackA.push(object);
      stackB.push(other);

      var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, isLoose, stackA, stackB);

      stackA.pop();
      stackB.pop();

      return result;
    }

    /**
     * The base implementation of `_.isMatch` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Array} matchData The propery names, values, and compare flags to match.
     * @param {Function} [customizer] The function to customize comparing objects.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     */
    function baseIsMatch(object, matchData, customizer) {
      var index = matchData.length,
          length = index,
          noCustomizer = !customizer;

      if (object == null) {
        return !length;
      }
      object = toObject(object);
      while (index--) {
        var data = matchData[index];
        if ((noCustomizer && data[2])
              ? data[1] !== object[data[0]]
              : !(data[0] in object)
            ) {
          return false;
        }
      }
      while (++index < length) {
        data = matchData[index];
        var key = data[0],
            objValue = object[key],
            srcValue = data[1];

        if (noCustomizer && data[2]) {
          if (objValue === undefined && !(key in object)) {
            return false;
          }
        } else {
          var result = customizer ? customizer(objValue, srcValue, key) : undefined;
          if (!(result === undefined ? baseIsEqual(srcValue, objValue, customizer, true) : result)) {
            return false;
          }
        }
      }
      return true;
    }

    /**
     * The base implementation of `_.map` without support for callback shorthands
     * and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     */
    function baseMap(collection, iteratee) {
      var index = -1,
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value, key, collection) {
        result[++index] = iteratee(value, key, collection);
      });
      return result;
    }

    /**
     * The base implementation of `_.matches` which does not clone `source`.
     *
     * @private
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new function.
     */
    function baseMatches(source) {
      var matchData = getMatchData(source);
      if (matchData.length == 1 && matchData[0][2]) {
        var key = matchData[0][0],
            value = matchData[0][1];

        return function(object) {
          if (object == null) {
            return false;
          }
          return object[key] === value && (value !== undefined || (key in toObject(object)));
        };
      }
      return function(object) {
        return baseIsMatch(object, matchData);
      };
    }

    /**
     * The base implementation of `_.matchesProperty` which does not clone `srcValue`.
     *
     * @private
     * @param {string} path The path of the property to get.
     * @param {*} srcValue The value to compare.
     * @returns {Function} Returns the new function.
     */
    function baseMatchesProperty(path, srcValue) {
      var isArr = isArray(path),
          isCommon = isKey(path) && isStrictComparable(srcValue),
          pathKey = (path + '');

      path = toPath(path);
      return function(object) {
        if (object == null) {
          return false;
        }
        var key = pathKey;
        object = toObject(object);
        if ((isArr || !isCommon) && !(key in object)) {
          object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
          if (object == null) {
            return false;
          }
          key = last(path);
          object = toObject(object);
        }
        return object[key] === srcValue
          ? (srcValue !== undefined || (key in object))
          : baseIsEqual(srcValue, object[key], undefined, true);
      };
    }

    /**
     * The base implementation of `_.merge` without support for argument juggling,
     * multiple sources, and `this` binding `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {Function} [customizer] The function to customize merged values.
     * @param {Array} [stackA=[]] Tracks traversed source objects.
     * @param {Array} [stackB=[]] Associates values with source counterparts.
     * @returns {Object} Returns `object`.
     */
    function baseMerge(object, source, customizer, stackA, stackB) {
      if (!isObject(object)) {
        return object;
      }
      var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)),
          props = isSrcArr ? undefined : keys(source);

      arrayEach(props || source, function(srcValue, key) {
        if (props) {
          key = srcValue;
          srcValue = source[key];
        }
        if (isObjectLike(srcValue)) {
          stackA || (stackA = []);
          stackB || (stackB = []);
          baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);
        }
        else {
          var value = object[key],
              result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
              isCommon = result === undefined;

          if (isCommon) {
            result = srcValue;
          }
          if ((result !== undefined || (isSrcArr && !(key in object))) &&
              (isCommon || (result === result ? (result !== value) : (value === value)))) {
            object[key] = result;
          }
        }
      });
      return object;
    }

    /**
     * A specialized version of `baseMerge` for arrays and objects which performs
     * deep merges and tracks traversed objects enabling objects with circular
     * references to be merged.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {string} key The key of the value to merge.
     * @param {Function} mergeFunc The function to merge values.
     * @param {Function} [customizer] The function to customize merged values.
     * @param {Array} [stackA=[]] Tracks traversed source objects.
     * @param {Array} [stackB=[]] Associates values with source counterparts.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {
      var length = stackA.length,
          srcValue = source[key];

      while (length--) {
        if (stackA[length] == srcValue) {
          object[key] = stackB[length];
          return;
        }
      }
      var value = object[key],
          result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
          isCommon = result === undefined;

      if (isCommon) {
        result = srcValue;
        if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {
          result = isArray(value)
            ? value
            : (isArrayLike(value) ? arrayCopy(value) : []);
        }
        else if (isPlainObject(srcValue) || isArguments(srcValue)) {
          result = isArguments(value)
            ? toPlainObject(value)
            : (isPlainObject(value) ? value : {});
        }
        else {
          isCommon = false;
        }
      }
      // Add the source value to the stack of traversed objects and associate
      // it with its merged value.
      stackA.push(srcValue);
      stackB.push(result);

      if (isCommon) {
        // Recursively merge objects and arrays (susceptible to call stack limits).
        object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);
      } else if (result === result ? (result !== value) : (value === value)) {
        object[key] = result;
      }
    }

    /**
     * The base implementation of `_.property` without support for deep paths.
     *
     * @private
     * @param {string} key The key of the property to get.
     * @returns {Function} Returns the new function.
     */
    function baseProperty(key) {
      return function(object) {
        return object == null ? undefined : object[key];
      };
    }

    /**
     * A specialized version of `baseProperty` which supports deep paths.
     *
     * @private
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new function.
     */
    function basePropertyDeep(path) {
      var pathKey = (path + '');
      path = toPath(path);
      return function(object) {
        return baseGet(object, path, pathKey);
      };
    }

    /**
     * The base implementation of `_.pullAt` without support for individual
     * index arguments and capturing the removed elements.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {number[]} indexes The indexes of elements to remove.
     * @returns {Array} Returns `array`.
     */
    function basePullAt(array, indexes) {
      var length = array ? indexes.length : 0;
      while (length--) {
        var index = indexes[length];
        if (index != previous && isIndex(index)) {
          var previous = index;
          splice.call(array, index, 1);
        }
      }
      return array;
    }

    /**
     * The base implementation of `_.random` without support for argument juggling
     * and returning floating-point numbers.
     *
     * @private
     * @param {number} min The minimum possible value.
     * @param {number} max The maximum possible value.
     * @returns {number} Returns the random number.
     */
    function baseRandom(min, max) {
      return min + nativeFloor(nativeRandom() * (max - min + 1));
    }

    /**
     * The base implementation of `_.reduce` and `_.reduceRight` without support
     * for callback shorthands and `this` binding, which iterates over `collection`
     * using the provided `eachFunc`.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {*} accumulator The initial value.
     * @param {boolean} initFromCollection Specify using the first or last element
     *  of `collection` as the initial value.
     * @param {Function} eachFunc The function to iterate over `collection`.
     * @returns {*} Returns the accumulated value.
     */
    function baseReduce(collection, iteratee, accumulator, initFromCollection, eachFunc) {
      eachFunc(collection, function(value, index, collection) {
        accumulator = initFromCollection
          ? (initFromCollection = false, value)
          : iteratee(accumulator, value, index, collection);
      });
      return accumulator;
    }

    /**
     * The base implementation of `setData` without support for hot loop detection.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var baseSetData = !metaMap ? identity : function(func, data) {
      metaMap.set(func, data);
      return func;
    };

    /**
     * The base implementation of `_.slice` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseSlice(array, start, end) {
      var index = -1,
          length = array.length;

      start = start == null ? 0 : (+start || 0);
      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = (end === undefined || end > length) ? length : (+end || 0);
      if (end < 0) {
        end += length;
      }
      length = start > end ? 0 : ((end - start) >>> 0);
      start >>>= 0;

      var result = Array(length);
      while (++index < length) {
        result[index] = array[index + start];
      }
      return result;
    }

    /**
     * The base implementation of `_.some` without support for callback shorthands
     * and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     */
    function baseSome(collection, predicate) {
      var result;

      baseEach(collection, function(value, index, collection) {
        result = predicate(value, index, collection);
        return !result;
      });
      return !!result;
    }

    /**
     * The base implementation of `_.sortBy` which uses `comparer` to define
     * the sort order of `array` and replaces criteria objects with their
     * corresponding values.
     *
     * @private
     * @param {Array} array The array to sort.
     * @param {Function} comparer The function to define sort order.
     * @returns {Array} Returns `array`.
     */
    function baseSortBy(array, comparer) {
      var length = array.length;

      array.sort(comparer);
      while (length--) {
        array[length] = array[length].value;
      }
      return array;
    }

    /**
     * The base implementation of `_.sortByOrder` without param guards.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
     * @param {boolean[]} orders The sort orders of `iteratees`.
     * @returns {Array} Returns the new sorted array.
     */
    function baseSortByOrder(collection, iteratees, orders) {
      var callback = getCallback(),
          index = -1;

      iteratees = arrayMap(iteratees, function(iteratee) { return callback(iteratee); });

      var result = baseMap(collection, function(value) {
        var criteria = arrayMap(iteratees, function(iteratee) { return iteratee(value); });
        return { 'criteria': criteria, 'index': ++index, 'value': value };
      });

      return baseSortBy(result, function(object, other) {
        return compareMultiple(object, other, orders);
      });
    }

    /**
     * The base implementation of `_.sum` without support for callback shorthands
     * and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {number} Returns the sum.
     */
    function baseSum(collection, iteratee) {
      var result = 0;
      baseEach(collection, function(value, index, collection) {
        result += +iteratee(value, index, collection) || 0;
      });
      return result;
    }

    /**
     * The base implementation of `_.uniq` without support for callback shorthands
     * and `this` binding.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The function invoked per iteration.
     * @returns {Array} Returns the new duplicate-value-free array.
     */
    function baseUniq(array, iteratee) {
      var index = -1,
          indexOf = getIndexOf(),
          length = array.length,
          isCommon = indexOf == baseIndexOf,
          isLarge = isCommon && length >= LARGE_ARRAY_SIZE,
          seen = isLarge ? createCache() : null,
          result = [];

      if (seen) {
        indexOf = cacheIndexOf;
        isCommon = false;
      } else {
        isLarge = false;
        seen = iteratee ? [] : result;
      }
      outer:
      while (++index < length) {
        var value = array[index],
            computed = iteratee ? iteratee(value, index, array) : value;

        if (isCommon && value === value) {
          var seenIndex = seen.length;
          while (seenIndex--) {
            if (seen[seenIndex] === computed) {
              continue outer;
            }
          }
          if (iteratee) {
            seen.push(computed);
          }
          result.push(value);
        }
        else if (indexOf(seen, computed, 0) < 0) {
          if (iteratee || isLarge) {
            seen.push(computed);
          }
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.values` and `_.valuesIn` which creates an
     * array of `object` property values corresponding to the property names
     * of `props`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array} props The property names to get values for.
     * @returns {Object} Returns the array of property values.
     */
    function baseValues(object, props) {
      var index = -1,
          length = props.length,
          result = Array(length);

      while (++index < length) {
        result[index] = object[props[index]];
      }
      return result;
    }

    /**
     * The base implementation of `_.dropRightWhile`, `_.dropWhile`, `_.takeRightWhile`,
     * and `_.takeWhile` without support for callback shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to query.
     * @param {Function} predicate The function invoked per iteration.
     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseWhile(array, predicate, isDrop, fromRight) {
      var length = array.length,
          index = fromRight ? length : -1;

      while ((fromRight ? index-- : ++index < length) && predicate(array[index], index, array)) {}
      return isDrop
        ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
        : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
    }

    /**
     * The base implementation of `wrapperValue` which returns the result of
     * performing a sequence of actions on the unwrapped `value`, where each
     * successive action is supplied the return value of the previous.
     *
     * @private
     * @param {*} value The unwrapped value.
     * @param {Array} actions Actions to peform to resolve the unwrapped value.
     * @returns {*} Returns the resolved value.
     */
    function baseWrapperValue(value, actions) {
      var result = value;
      if (result instanceof LazyWrapper) {
        result = result.value();
      }
      var index = -1,
          length = actions.length;

      while (++index < length) {
        var action = actions[index];
        result = action.func.apply(action.thisArg, arrayPush([result], action.args));
      }
      return result;
    }

    /**
     * Performs a binary search of `array` to determine the index at which `value`
     * should be inserted into `array` in order to maintain its sort order.
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function binaryIndex(array, value, retHighest) {
      var low = 0,
          high = array ? array.length : low;

      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
        while (low < high) {
          var mid = (low + high) >>> 1,
              computed = array[mid];

          if ((retHighest ? (computed <= value) : (computed < value)) && computed !== null) {
            low = mid + 1;
          } else {
            high = mid;
          }
        }
        return high;
      }
      return binaryIndexBy(array, value, identity, retHighest);
    }

    /**
     * This function is like `binaryIndex` except that it invokes `iteratee` for
     * `value` and each element of `array` to compute their sort ranking. The
     * iteratee is invoked with one argument; (value).
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function binaryIndexBy(array, value, iteratee, retHighest) {
      value = iteratee(value);

      var low = 0,
          high = array ? array.length : 0,
          valIsNaN = value !== value,
          valIsNull = value === null,
          valIsUndef = value === undefined;

      while (low < high) {
        var mid = nativeFloor((low + high) / 2),
            computed = iteratee(array[mid]),
            isDef = computed !== undefined,
            isReflexive = computed === computed;

        if (valIsNaN) {
          var setLow = isReflexive || retHighest;
        } else if (valIsNull) {
          setLow = isReflexive && isDef && (retHighest || computed != null);
        } else if (valIsUndef) {
          setLow = isReflexive && (retHighest || isDef);
        } else if (computed == null) {
          setLow = false;
        } else {
          setLow = retHighest ? (computed <= value) : (computed < value);
        }
        if (setLow) {
          low = mid + 1;
        } else {
          high = mid;
        }
      }
      return nativeMin(high, MAX_ARRAY_INDEX);
    }

    /**
     * A specialized version of `baseCallback` which only supports `this` binding
     * and specifying the number of arguments to provide to `func`.
     *
     * @private
     * @param {Function} func The function to bind.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {number} [argCount] The number of arguments to provide to `func`.
     * @returns {Function} Returns the callback.
     */
    function bindCallback(func, thisArg, argCount) {
      if (typeof func != 'function') {
        return identity;
      }
      if (thisArg === undefined) {
        return func;
      }
      switch (argCount) {
        case 1: return function(value) {
          return func.call(thisArg, value);
        };
        case 3: return function(value, index, collection) {
          return func.call(thisArg, value, index, collection);
        };
        case 4: return function(accumulator, value, index, collection) {
          return func.call(thisArg, accumulator, value, index, collection);
        };
        case 5: return function(value, other, key, object, source) {
          return func.call(thisArg, value, other, key, object, source);
        };
      }
      return function() {
        return func.apply(thisArg, arguments);
      };
    }

    /**
     * Creates a clone of the given array buffer.
     *
     * @private
     * @param {ArrayBuffer} buffer The array buffer to clone.
     * @returns {ArrayBuffer} Returns the cloned array buffer.
     */
    function bufferClone(buffer) {
      var result = new ArrayBuffer(buffer.byteLength),
          view = new Uint8Array(result);

      view.set(new Uint8Array(buffer));
      return result;
    }

    /**
     * Creates an array that is the composition of partially applied arguments,
     * placeholders, and provided arguments into a single array of arguments.
     *
     * @private
     * @param {Array|Object} args The provided arguments.
     * @param {Array} partials The arguments to prepend to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgs(args, partials, holders) {
      var holdersLength = holders.length,
          argsIndex = -1,
          argsLength = nativeMax(args.length - holdersLength, 0),
          leftIndex = -1,
          leftLength = partials.length,
          result = Array(leftLength + argsLength);

      while (++leftIndex < leftLength) {
        result[leftIndex] = partials[leftIndex];
      }
      while (++argsIndex < holdersLength) {
        result[holders[argsIndex]] = args[argsIndex];
      }
      while (argsLength--) {
        result[leftIndex++] = args[argsIndex++];
      }
      return result;
    }

    /**
     * This function is like `composeArgs` except that the arguments composition
     * is tailored for `_.partialRight`.
     *
     * @private
     * @param {Array|Object} args The provided arguments.
     * @param {Array} partials The arguments to append to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgsRight(args, partials, holders) {
      var holdersIndex = -1,
          holdersLength = holders.length,
          argsIndex = -1,
          argsLength = nativeMax(args.length - holdersLength, 0),
          rightIndex = -1,
          rightLength = partials.length,
          result = Array(argsLength + rightLength);

      while (++argsIndex < argsLength) {
        result[argsIndex] = args[argsIndex];
      }
      var offset = argsIndex;
      while (++rightIndex < rightLength) {
        result[offset + rightIndex] = partials[rightIndex];
      }
      while (++holdersIndex < holdersLength) {
        result[offset + holders[holdersIndex]] = args[argsIndex++];
      }
      return result;
    }

    /**
     * Creates a `_.countBy`, `_.groupBy`, `_.indexBy`, or `_.partition` function.
     *
     * @private
     * @param {Function} setter The function to set keys and values of the accumulator object.
     * @param {Function} [initializer] The function to initialize the accumulator object.
     * @returns {Function} Returns the new aggregator function.
     */
    function createAggregator(setter, initializer) {
      return function(collection, iteratee, thisArg) {
        var result = initializer ? initializer() : {};
        iteratee = getCallback(iteratee, thisArg, 3);

        if (isArray(collection)) {
          var index = -1,
              length = collection.length;

          while (++index < length) {
            var value = collection[index];
            setter(result, value, iteratee(value, index, collection), collection);
          }
        } else {
          baseEach(collection, function(value, key, collection) {
            setter(result, value, iteratee(value, key, collection), collection);
          });
        }
        return result;
      };
    }

    /**
     * Creates a `_.assign`, `_.defaults`, or `_.merge` function.
     *
     * @private
     * @param {Function} assigner The function to assign values.
     * @returns {Function} Returns the new assigner function.
     */
    function createAssigner(assigner) {
      return restParam(function(object, sources) {
        var index = -1,
            length = object == null ? 0 : sources.length,
            customizer = length > 2 ? sources[length - 2] : undefined,
            guard = length > 2 ? sources[2] : undefined,
            thisArg = length > 1 ? sources[length - 1] : undefined;

        if (typeof customizer == 'function') {
          customizer = bindCallback(customizer, thisArg, 5);
          length -= 2;
        } else {
          customizer = typeof thisArg == 'function' ? thisArg : undefined;
          length -= (customizer ? 1 : 0);
        }
        if (guard && isIterateeCall(sources[0], sources[1], guard)) {
          customizer = length < 3 ? undefined : customizer;
          length = 1;
        }
        while (++index < length) {
          var source = sources[index];
          if (source) {
            assigner(object, source, customizer);
          }
        }
        return object;
      });
    }

    /**
     * Creates a `baseEach` or `baseEachRight` function.
     *
     * @private
     * @param {Function} eachFunc The function to iterate over a collection.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseEach(eachFunc, fromRight) {
      return function(collection, iteratee) {
        var length = collection ? getLength(collection) : 0;
        if (!isLength(length)) {
          return eachFunc(collection, iteratee);
        }
        var index = fromRight ? length : -1,
            iterable = toObject(collection);

        while ((fromRight ? index-- : ++index < length)) {
          if (iteratee(iterable[index], index, iterable) === false) {
            break;
          }
        }
        return collection;
      };
    }

    /**
     * Creates a base function for `_.forIn` or `_.forInRight`.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseFor(fromRight) {
      return function(object, iteratee, keysFunc) {
        var iterable = toObject(object),
            props = keysFunc(object),
            length = props.length,
            index = fromRight ? length : -1;

        while ((fromRight ? index-- : ++index < length)) {
          var key = props[index];
          if (iteratee(iterable[key], key, iterable) === false) {
            break;
          }
        }
        return object;
      };
    }

    /**
     * Creates a function that wraps `func` and invokes it with the `this`
     * binding of `thisArg`.
     *
     * @private
     * @param {Function} func The function to bind.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @returns {Function} Returns the new bound function.
     */
    function createBindWrapper(func, thisArg) {
      var Ctor = createCtorWrapper(func);

      function wrapper() {
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return fn.apply(thisArg, arguments);
      }
      return wrapper;
    }

    /**
     * Creates a `Set` cache object to optimize linear searches of large arrays.
     *
     * @private
     * @param {Array} [values] The values to cache.
     * @returns {null|Object} Returns the new cache object if `Set` is supported, else `null`.
     */
    function createCache(values) {
      return (nativeCreate && Set) ? new SetCache(values) : null;
    }

    /**
     * Creates a function that produces compound words out of the words in a
     * given string.
     *
     * @private
     * @param {Function} callback The function to combine each word.
     * @returns {Function} Returns the new compounder function.
     */
    function createCompounder(callback) {
      return function(string) {
        var index = -1,
            array = words(deburr(string)),
            length = array.length,
            result = '';

        while (++index < length) {
          result = callback(result, array[index], index);
        }
        return result;
      };
    }

    /**
     * Creates a function that produces an instance of `Ctor` regardless of
     * whether it was invoked as part of a `new` expression or by `call` or `apply`.
     *
     * @private
     * @param {Function} Ctor The constructor to wrap.
     * @returns {Function} Returns the new wrapped function.
     */
    function createCtorWrapper(Ctor) {
      return function() {
        // Use a `switch` statement to work with class constructors.
        // See http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
        // for more details.
        var args = arguments;
        switch (args.length) {
          case 0: return new Ctor;
          case 1: return new Ctor(args[0]);
          case 2: return new Ctor(args[0], args[1]);
          case 3: return new Ctor(args[0], args[1], args[2]);
          case 4: return new Ctor(args[0], args[1], args[2], args[3]);
          case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
          case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
          case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
        }
        var thisBinding = baseCreate(Ctor.prototype),
            result = Ctor.apply(thisBinding, args);

        // Mimic the constructor's `return` behavior.
        // See https://es5.github.io/#x13.2.2 for more details.
        return isObject(result) ? result : thisBinding;
      };
    }

    /**
     * Creates a `_.curry` or `_.curryRight` function.
     *
     * @private
     * @param {boolean} flag The curry bit flag.
     * @returns {Function} Returns the new curry function.
     */
    function createCurry(flag) {
      function curryFunc(func, arity, guard) {
        if (guard && isIterateeCall(func, arity, guard)) {
          arity = undefined;
        }
        var result = createWrapper(func, flag, undefined, undefined, undefined, undefined, undefined, arity);
        result.placeholder = curryFunc.placeholder;
        return result;
      }
      return curryFunc;
    }

    /**
     * Creates a `_.defaults` or `_.defaultsDeep` function.
     *
     * @private
     * @param {Function} assigner The function to assign values.
     * @param {Function} customizer The function to customize assigned values.
     * @returns {Function} Returns the new defaults function.
     */
    function createDefaults(assigner, customizer) {
      return restParam(function(args) {
        var object = args[0];
        if (object == null) {
          return object;
        }
        args.push(customizer);
        return assigner.apply(undefined, args);
      });
    }

    /**
     * Creates a `_.max` or `_.min` function.
     *
     * @private
     * @param {Function} comparator The function used to compare values.
     * @param {*} exValue The initial extremum value.
     * @returns {Function} Returns the new extremum function.
     */
    function createExtremum(comparator, exValue) {
      return function(collection, iteratee, thisArg) {
        if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
          iteratee = undefined;
        }
        iteratee = getCallback(iteratee, thisArg, 3);
        if (iteratee.length == 1) {
          collection = isArray(collection) ? collection : toIterable(collection);
          var result = arrayExtremum(collection, iteratee, comparator, exValue);
          if (!(collection.length && result === exValue)) {
            return result;
          }
        }
        return baseExtremum(collection, iteratee, comparator, exValue);
      };
    }

    /**
     * Creates a `_.find` or `_.findLast` function.
     *
     * @private
     * @param {Function} eachFunc The function to iterate over a collection.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new find function.
     */
    function createFind(eachFunc, fromRight) {
      return function(collection, predicate, thisArg) {
        predicate = getCallback(predicate, thisArg, 3);
        if (isArray(collection)) {
          var index = baseFindIndex(collection, predicate, fromRight);
          return index > -1 ? collection[index] : undefined;
        }
        return baseFind(collection, predicate, eachFunc);
      };
    }

    /**
     * Creates a `_.findIndex` or `_.findLastIndex` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new find function.
     */
    function createFindIndex(fromRight) {
      return function(array, predicate, thisArg) {
        if (!(array && array.length)) {
          return -1;
        }
        predicate = getCallback(predicate, thisArg, 3);
        return baseFindIndex(array, predicate, fromRight);
      };
    }

    /**
     * Creates a `_.findKey` or `_.findLastKey` function.
     *
     * @private
     * @param {Function} objectFunc The function to iterate over an object.
     * @returns {Function} Returns the new find function.
     */
    function createFindKey(objectFunc) {
      return function(object, predicate, thisArg) {
        predicate = getCallback(predicate, thisArg, 3);
        return baseFind(object, predicate, objectFunc, true);
      };
    }

    /**
     * Creates a `_.flow` or `_.flowRight` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new flow function.
     */
    function createFlow(fromRight) {
      return function() {
        var wrapper,
            length = arguments.length,
            index = fromRight ? length : -1,
            leftIndex = 0,
            funcs = Array(length);

        while ((fromRight ? index-- : ++index < length)) {
          var func = funcs[leftIndex++] = arguments[index];
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          if (!wrapper && LodashWrapper.prototype.thru && getFuncName(func) == 'wrapper') {
            wrapper = new LodashWrapper([], true);
          }
        }
        index = wrapper ? -1 : length;
        while (++index < length) {
          func = funcs[index];

          var funcName = getFuncName(func),
              data = funcName == 'wrapper' ? getData(func) : undefined;

          if (data && isLaziable(data[0]) && data[1] == (ARY_FLAG | CURRY_FLAG | PARTIAL_FLAG | REARG_FLAG) && !data[4].length && data[9] == 1) {
            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
          } else {
            wrapper = (func.length == 1 && isLaziable(func)) ? wrapper[funcName]() : wrapper.thru(func);
          }
        }
        return function() {
          var args = arguments,
              value = args[0];

          if (wrapper && args.length == 1 && isArray(value) && value.length >= LARGE_ARRAY_SIZE) {
            return wrapper.plant(value).value();
          }
          var index = 0,
              result = length ? funcs[index].apply(this, args) : value;

          while (++index < length) {
            result = funcs[index].call(this, result);
          }
          return result;
        };
      };
    }

    /**
     * Creates a function for `_.forEach` or `_.forEachRight`.
     *
     * @private
     * @param {Function} arrayFunc The function to iterate over an array.
     * @param {Function} eachFunc The function to iterate over a collection.
     * @returns {Function} Returns the new each function.
     */
    function createForEach(arrayFunc, eachFunc) {
      return function(collection, iteratee, thisArg) {
        return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
          ? arrayFunc(collection, iteratee)
          : eachFunc(collection, bindCallback(iteratee, thisArg, 3));
      };
    }

    /**
     * Creates a function for `_.forIn` or `_.forInRight`.
     *
     * @private
     * @param {Function} objectFunc The function to iterate over an object.
     * @returns {Function} Returns the new each function.
     */
    function createForIn(objectFunc) {
      return function(object, iteratee, thisArg) {
        if (typeof iteratee != 'function' || thisArg !== undefined) {
          iteratee = bindCallback(iteratee, thisArg, 3);
        }
        return objectFunc(object, iteratee, keysIn);
      };
    }

    /**
     * Creates a function for `_.forOwn` or `_.forOwnRight`.
     *
     * @private
     * @param {Function} objectFunc The function to iterate over an object.
     * @returns {Function} Returns the new each function.
     */
    function createForOwn(objectFunc) {
      return function(object, iteratee, thisArg) {
        if (typeof iteratee != 'function' || thisArg !== undefined) {
          iteratee = bindCallback(iteratee, thisArg, 3);
        }
        return objectFunc(object, iteratee);
      };
    }

    /**
     * Creates a function for `_.mapKeys` or `_.mapValues`.
     *
     * @private
     * @param {boolean} [isMapKeys] Specify mapping keys instead of values.
     * @returns {Function} Returns the new map function.
     */
    function createObjectMapper(isMapKeys) {
      return function(object, iteratee, thisArg) {
        var result = {};
        iteratee = getCallback(iteratee, thisArg, 3);

        baseForOwn(object, function(value, key, object) {
          var mapped = iteratee(value, key, object);
          key = isMapKeys ? mapped : key;
          value = isMapKeys ? value : mapped;
          result[key] = value;
        });
        return result;
      };
    }

    /**
     * Creates a function for `_.padLeft` or `_.padRight`.
     *
     * @private
     * @param {boolean} [fromRight] Specify padding from the right.
     * @returns {Function} Returns the new pad function.
     */
    function createPadDir(fromRight) {
      return function(string, length, chars) {
        string = baseToString(string);
        return (fromRight ? string : '') + createPadding(string, length, chars) + (fromRight ? '' : string);
      };
    }

    /**
     * Creates a `_.partial` or `_.partialRight` function.
     *
     * @private
     * @param {boolean} flag The partial bit flag.
     * @returns {Function} Returns the new partial function.
     */
    function createPartial(flag) {
      var partialFunc = restParam(function(func, partials) {
        var holders = replaceHolders(partials, partialFunc.placeholder);
        return createWrapper(func, flag, undefined, partials, holders);
      });
      return partialFunc;
    }

    /**
     * Creates a function for `_.reduce` or `_.reduceRight`.
     *
     * @private
     * @param {Function} arrayFunc The function to iterate over an array.
     * @param {Function} eachFunc The function to iterate over a collection.
     * @returns {Function} Returns the new each function.
     */
    function createReduce(arrayFunc, eachFunc) {
      return function(collection, iteratee, accumulator, thisArg) {
        var initFromArray = arguments.length < 3;
        return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
          ? arrayFunc(collection, iteratee, accumulator, initFromArray)
          : baseReduce(collection, getCallback(iteratee, thisArg, 4), accumulator, initFromArray, eachFunc);
      };
    }

    /**
     * Creates a function that wraps `func` and invokes it with optional `this`
     * binding of, partial application, and currying.
     *
     * @private
     * @param {Function|string} func The function or method name to reference.
     * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to prepend to those provided to the new function.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [partialsRight] The arguments to append to those provided to the new function.
     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createHybridWrapper(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
      var isAry = bitmask & ARY_FLAG,
          isBind = bitmask & BIND_FLAG,
          isBindKey = bitmask & BIND_KEY_FLAG,
          isCurry = bitmask & CURRY_FLAG,
          isCurryBound = bitmask & CURRY_BOUND_FLAG,
          isCurryRight = bitmask & CURRY_RIGHT_FLAG,
          Ctor = isBindKey ? undefined : createCtorWrapper(func);

      function wrapper() {
        // Avoid `arguments` object use disqualifying optimizations by
        // converting it to an array before providing it to other functions.
        var length = arguments.length,
            index = length,
            args = Array(length);

        while (index--) {
          args[index] = arguments[index];
        }
        if (partials) {
          args = composeArgs(args, partials, holders);
        }
        if (partialsRight) {
          args = composeArgsRight(args, partialsRight, holdersRight);
        }
        if (isCurry || isCurryRight) {
          var placeholder = wrapper.placeholder,
              argsHolders = replaceHolders(args, placeholder);

          length -= argsHolders.length;
          if (length < arity) {
            var newArgPos = argPos ? arrayCopy(argPos) : undefined,
                newArity = nativeMax(arity - length, 0),
                newsHolders = isCurry ? argsHolders : undefined,
                newHoldersRight = isCurry ? undefined : argsHolders,
                newPartials = isCurry ? args : undefined,
                newPartialsRight = isCurry ? undefined : args;

            bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG);
            bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG);

            if (!isCurryBound) {
              bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);
            }
            var newData = [func, bitmask, thisArg, newPartials, newsHolders, newPartialsRight, newHoldersRight, newArgPos, ary, newArity],
                result = createHybridWrapper.apply(undefined, newData);

            if (isLaziable(func)) {
              setData(result, newData);
            }
            result.placeholder = placeholder;
            return result;
          }
        }
        var thisBinding = isBind ? thisArg : this,
            fn = isBindKey ? thisBinding[func] : func;

        if (argPos) {
          args = reorder(args, argPos);
        }
        if (isAry && ary < args.length) {
          args.length = ary;
        }
        if (this && this !== root && this instanceof wrapper) {
          fn = Ctor || createCtorWrapper(func);
        }
        return fn.apply(thisBinding, args);
      }
      return wrapper;
    }

    /**
     * Creates the padding required for `string` based on the given `length`.
     * The `chars` string is truncated if the number of characters exceeds `length`.
     *
     * @private
     * @param {string} string The string to create padding for.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the pad for `string`.
     */
    function createPadding(string, length, chars) {
      var strLength = string.length;
      length = +length;

      if (strLength >= length || !nativeIsFinite(length)) {
        return '';
      }
      var padLength = length - strLength;
      chars = chars == null ? ' ' : (chars + '');
      return repeat(chars, nativeCeil(padLength / chars.length)).slice(0, padLength);
    }

    /**
     * Creates a function that wraps `func` and invokes it with the optional `this`
     * binding of `thisArg` and the `partials` prepended to those provided to
     * the wrapper.
     *
     * @private
     * @param {Function} func The function to partially apply arguments to.
     * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {Array} partials The arguments to prepend to those provided to the new function.
     * @returns {Function} Returns the new bound function.
     */
    function createPartialWrapper(func, bitmask, thisArg, partials) {
      var isBind = bitmask & BIND_FLAG,
          Ctor = createCtorWrapper(func);

      function wrapper() {
        // Avoid `arguments` object use disqualifying optimizations by
        // converting it to an array before providing it `func`.
        var argsIndex = -1,
            argsLength = arguments.length,
            leftIndex = -1,
            leftLength = partials.length,
            args = Array(leftLength + argsLength);

        while (++leftIndex < leftLength) {
          args[leftIndex] = partials[leftIndex];
        }
        while (argsLength--) {
          args[leftIndex++] = arguments[++argsIndex];
        }
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return fn.apply(isBind ? thisArg : this, args);
      }
      return wrapper;
    }

    /**
     * Creates a `_.ceil`, `_.floor`, or `_.round` function.
     *
     * @private
     * @param {string} methodName The name of the `Math` method to use when rounding.
     * @returns {Function} Returns the new round function.
     */
    function createRound(methodName) {
      var func = Math[methodName];
      return function(number, precision) {
        precision = precision === undefined ? 0 : (+precision || 0);
        if (precision) {
          precision = pow(10, precision);
          return func(number * precision) / precision;
        }
        return func(number);
      };
    }

    /**
     * Creates a `_.sortedIndex` or `_.sortedLastIndex` function.
     *
     * @private
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {Function} Returns the new index function.
     */
    function createSortedIndex(retHighest) {
      return function(array, value, iteratee, thisArg) {
        var callback = getCallback(iteratee);
        return (iteratee == null && callback === baseCallback)
          ? binaryIndex(array, value, retHighest)
          : binaryIndexBy(array, value, callback(iteratee, thisArg, 1), retHighest);
      };
    }

    /**
     * Creates a function that either curries or invokes `func` with optional
     * `this` binding and partially applied arguments.
     *
     * @private
     * @param {Function|string} func The function or method name to reference.
     * @param {number} bitmask The bitmask of flags.
     *  The bitmask may be composed of the following flags:
     *     1 - `_.bind`
     *     2 - `_.bindKey`
     *     4 - `_.curry` or `_.curryRight` of a bound function
     *     8 - `_.curry`
     *    16 - `_.curryRight`
     *    32 - `_.partial`
     *    64 - `_.partialRight`
     *   128 - `_.rearg`
     *   256 - `_.ary`
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to be partially applied.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createWrapper(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
      var isBindKey = bitmask & BIND_KEY_FLAG;
      if (!isBindKey && typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var length = partials ? partials.length : 0;
      if (!length) {
        bitmask &= ~(PARTIAL_FLAG | PARTIAL_RIGHT_FLAG);
        partials = holders = undefined;
      }
      length -= (holders ? holders.length : 0);
      if (bitmask & PARTIAL_RIGHT_FLAG) {
        var partialsRight = partials,
            holdersRight = holders;

        partials = holders = undefined;
      }
      var data = isBindKey ? undefined : getData(func),
          newData = [func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity];

      if (data) {
        mergeData(newData, data);
        bitmask = newData[1];
        arity = newData[9];
      }
      newData[9] = arity == null
        ? (isBindKey ? 0 : func.length)
        : (nativeMax(arity - length, 0) || 0);

      if (bitmask == BIND_FLAG) {
        var result = createBindWrapper(newData[0], newData[2]);
      } else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !newData[4].length) {
        result = createPartialWrapper.apply(undefined, newData);
      } else {
        result = createHybridWrapper.apply(undefined, newData);
      }
      var setter = data ? baseSetData : setData;
      return setter(result, newData);
    }

    /**
     * A specialized version of `baseIsEqualDeep` for arrays with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Array} array The array to compare.
     * @param {Array} other The other array to compare.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Function} [customizer] The function to customize comparing arrays.
     * @param {boolean} [isLoose] Specify performing partial comparisons.
     * @param {Array} [stackA] Tracks traversed `value` objects.
     * @param {Array} [stackB] Tracks traversed `other` objects.
     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
     */
    function equalArrays(array, other, equalFunc, customizer, isLoose, stackA, stackB) {
      var index = -1,
          arrLength = array.length,
          othLength = other.length;

      if (arrLength != othLength && !(isLoose && othLength > arrLength)) {
        return false;
      }
      // Ignore non-index properties.
      while (++index < arrLength) {
        var arrValue = array[index],
            othValue = other[index],
            result = customizer ? customizer(isLoose ? othValue : arrValue, isLoose ? arrValue : othValue, index) : undefined;

        if (result !== undefined) {
          if (result) {
            continue;
          }
          return false;
        }
        // Recursively compare arrays (susceptible to call stack limits).
        if (isLoose) {
          if (!arraySome(other, function(othValue) {
                return arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB);
              })) {
            return false;
          }
        } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB))) {
          return false;
        }
      }
      return true;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for comparing objects of
     * the same `toStringTag`.
     *
     * **Note:** This function only supports comparing values with tags of
     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {string} tag The `toStringTag` of the objects to compare.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalByTag(object, other, tag) {
      switch (tag) {
        case boolTag:
        case dateTag:
          // Coerce dates and booleans to numbers, dates to milliseconds and booleans
          // to `1` or `0` treating invalid dates coerced to `NaN` as not equal.
          return +object == +other;

        case errorTag:
          return object.name == other.name && object.message == other.message;

        case numberTag:
          // Treat `NaN` vs. `NaN` as equal.
          return (object != +object)
            ? other != +other
            : object == +other;

        case regexpTag:
        case stringTag:
          // Coerce regexes to strings and treat strings primitives and string
          // objects as equal. See https://es5.github.io/#x15.10.6.4 for more details.
          return object == (other + '');
      }
      return false;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for objects with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Function} [customizer] The function to customize comparing values.
     * @param {boolean} [isLoose] Specify performing partial comparisons.
     * @param {Array} [stackA] Tracks traversed `value` objects.
     * @param {Array} [stackB] Tracks traversed `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalObjects(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
      var objProps = keys(object),
          objLength = objProps.length,
          othProps = keys(other),
          othLength = othProps.length;

      if (objLength != othLength && !isLoose) {
        return false;
      }
      var index = objLength;
      while (index--) {
        var key = objProps[index];
        if (!(isLoose ? key in other : hasOwnProperty.call(other, key))) {
          return false;
        }
      }
      var skipCtor = isLoose;
      while (++index < objLength) {
        key = objProps[index];
        var objValue = object[key],
            othValue = other[key],
            result = customizer ? customizer(isLoose ? othValue : objValue, isLoose? objValue : othValue, key) : undefined;

        // Recursively compare objects (susceptible to call stack limits).
        if (!(result === undefined ? equalFunc(objValue, othValue, customizer, isLoose, stackA, stackB) : result)) {
          return false;
        }
        skipCtor || (skipCtor = key == 'constructor');
      }
      if (!skipCtor) {
        var objCtor = object.constructor,
            othCtor = other.constructor;

        // Non `Object` object instances with different constructors are not equal.
        if (objCtor != othCtor &&
            ('constructor' in object && 'constructor' in other) &&
            !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
              typeof othCtor == 'function' && othCtor instanceof othCtor)) {
          return false;
        }
      }
      return true;
    }

    /**
     * Gets the appropriate "callback" function. If the `_.callback` method is
     * customized this function returns the custom method, otherwise it returns
     * the `baseCallback` function. If arguments are provided the chosen function
     * is invoked with them and its result is returned.
     *
     * @private
     * @returns {Function} Returns the chosen function or its result.
     */
    function getCallback(func, thisArg, argCount) {
      var result = lodash.callback || callback;
      result = result === callback ? baseCallback : result;
      return argCount ? result(func, thisArg, argCount) : result;
    }

    /**
     * Gets metadata for `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {*} Returns the metadata for `func`.
     */
    var getData = !metaMap ? noop : function(func) {
      return metaMap.get(func);
    };

    /**
     * Gets the name of `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {string} Returns the function name.
     */
    function getFuncName(func) {
      var result = func.name,
          array = realNames[result],
          length = array ? array.length : 0;

      while (length--) {
        var data = array[length],
            otherFunc = data.func;
        if (otherFunc == null || otherFunc == func) {
          return data.name;
        }
      }
      return result;
    }

    /**
     * Gets the appropriate "indexOf" function. If the `_.indexOf` method is
     * customized this function returns the custom method, otherwise it returns
     * the `baseIndexOf` function. If arguments are provided the chosen function
     * is invoked with them and its result is returned.
     *
     * @private
     * @returns {Function|number} Returns the chosen function or its result.
     */
    function getIndexOf(collection, target, fromIndex) {
      var result = lodash.indexOf || indexOf;
      result = result === indexOf ? baseIndexOf : result;
      return collection ? result(collection, target, fromIndex) : result;
    }

    /**
     * Gets the "length" property value of `object`.
     *
     * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
     * that affects Safari on at least iOS 8.1-8.3 ARM64.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {*} Returns the "length" value.
     */
    var getLength = baseProperty('length');

    /**
     * Gets the propery names, values, and compare flags of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the match data of `object`.
     */
    function getMatchData(object) {
      var result = pairs(object),
          length = result.length;

      while (length--) {
        result[length][2] = isStrictComparable(result[length][1]);
      }
      return result;
    }

    /**
     * Gets the native function at `key` of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {string} key The key of the method to get.
     * @returns {*} Returns the function if it's native, else `undefined`.
     */
    function getNative(object, key) {
      var value = object == null ? undefined : object[key];
      return isNative(value) ? value : undefined;
    }

    /**
     * Gets the view, applying any `transforms` to the `start` and `end` positions.
     *
     * @private
     * @param {number} start The start of the view.
     * @param {number} end The end of the view.
     * @param {Array} transforms The transformations to apply to the view.
     * @returns {Object} Returns an object containing the `start` and `end`
     *  positions of the view.
     */
    function getView(start, end, transforms) {
      var index = -1,
          length = transforms.length;

      while (++index < length) {
        var data = transforms[index],
            size = data.size;

        switch (data.type) {
          case 'drop':      start += size; break;
          case 'dropRight': end -= size; break;
          case 'take':      end = nativeMin(end, start + size); break;
          case 'takeRight': start = nativeMax(start, end - size); break;
        }
      }
      return { 'start': start, 'end': end };
    }

    /**
     * Initializes an array clone.
     *
     * @private
     * @param {Array} array The array to clone.
     * @returns {Array} Returns the initialized clone.
     */
    function initCloneArray(array) {
      var length = array.length,
          result = new array.constructor(length);

      // Add array properties assigned by `RegExp#exec`.
      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
        result.index = array.index;
        result.input = array.input;
      }
      return result;
    }

    /**
     * Initializes an object clone.
     *
     * @private
     * @param {Object} object The object to clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneObject(object) {
      var Ctor = object.constructor;
      if (!(typeof Ctor == 'function' && Ctor instanceof Ctor)) {
        Ctor = Object;
      }
      return new Ctor;
    }

    /**
     * Initializes an object clone based on its `toStringTag`.
     *
     * **Note:** This function only supports cloning values with tags of
     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
     *
     * @private
     * @param {Object} object The object to clone.
     * @param {string} tag The `toStringTag` of the object to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneByTag(object, tag, isDeep) {
      var Ctor = object.constructor;
      switch (tag) {
        case arrayBufferTag:
          return bufferClone(object);

        case boolTag:
        case dateTag:
          return new Ctor(+object);

        case float32Tag: case float64Tag:
        case int8Tag: case int16Tag: case int32Tag:
        case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
          var buffer = object.buffer;
          return new Ctor(isDeep ? bufferClone(buffer) : buffer, object.byteOffset, object.length);

        case numberTag:
        case stringTag:
          return new Ctor(object);

        case regexpTag:
          var result = new Ctor(object.source, reFlags.exec(object));
          result.lastIndex = object.lastIndex;
      }
      return result;
    }

    /**
     * Invokes the method at `path` on `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the method to invoke.
     * @param {Array} args The arguments to invoke the method with.
     * @returns {*} Returns the result of the invoked method.
     */
    function invokePath(object, path, args) {
      if (object != null && !isKey(path, object)) {
        path = toPath(path);
        object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
        path = last(path);
      }
      var func = object == null ? object : object[path];
      return func == null ? undefined : func.apply(object, args);
    }

    /**
     * Checks if `value` is array-like.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
     */
    function isArrayLike(value) {
      return value != null && isLength(getLength(value));
    }

    /**
     * Checks if `value` is a valid array-like index.
     *
     * @private
     * @param {*} value The value to check.
     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
     */
    function isIndex(value, length) {
      value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
      length = length == null ? MAX_SAFE_INTEGER : length;
      return value > -1 && value % 1 == 0 && value < length;
    }

    /**
     * Checks if the provided arguments are from an iteratee call.
     *
     * @private
     * @param {*} value The potential iteratee value argument.
     * @param {*} index The potential iteratee index or key argument.
     * @param {*} object The potential iteratee object argument.
     * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
     */
    function isIterateeCall(value, index, object) {
      if (!isObject(object)) {
        return false;
      }
      var type = typeof index;
      if (type == 'number'
          ? (isArrayLike(object) && isIndex(index, object.length))
          : (type == 'string' && index in object)) {
        var other = object[index];
        return value === value ? (value === other) : (other !== other);
      }
      return false;
    }

    /**
     * Checks if `value` is a property name and not a property path.
     *
     * @private
     * @param {*} value The value to check.
     * @param {Object} [object] The object to query keys on.
     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
     */
    function isKey(value, object) {
      var type = typeof value;
      if ((type == 'string' && reIsPlainProp.test(value)) || type == 'number') {
        return true;
      }
      if (isArray(value)) {
        return false;
      }
      var result = !reIsDeepProp.test(value);
      return result || (object != null && value in toObject(object));
    }

    /**
     * Checks if `func` has a lazy counterpart.
     *
     * @private
     * @param {Function} func The function to check.
     * @returns {boolean} Returns `true` if `func` has a lazy counterpart, else `false`.
     */
    function isLaziable(func) {
      var funcName = getFuncName(func);
      if (!(funcName in LazyWrapper.prototype)) {
        return false;
      }
      var other = lodash[funcName];
      if (func === other) {
        return true;
      }
      var data = getData(other);
      return !!data && func === data[0];
    }

    /**
     * Checks if `value` is a valid array-like length.
     *
     * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
     */
    function isLength(value) {
      return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
    }

    /**
     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` if suitable for strict
     *  equality comparisons, else `false`.
     */
    function isStrictComparable(value) {
      return value === value && !isObject(value);
    }

    /**
     * Merges the function metadata of `source` into `data`.
     *
     * Merging metadata reduces the number of wrappers required to invoke a function.
     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
     * may be applied regardless of execution order. Methods like `_.ary` and `_.rearg`
     * augment function arguments, making the order in which they are executed important,
     * preventing the merging of metadata. However, we make an exception for a safe
     * common case where curried functions have `_.ary` and or `_.rearg` applied.
     *
     * @private
     * @param {Array} data The destination metadata.
     * @param {Array} source The source metadata.
     * @returns {Array} Returns `data`.
     */
    function mergeData(data, source) {
      var bitmask = data[1],
          srcBitmask = source[1],
          newBitmask = bitmask | srcBitmask,
          isCommon = newBitmask < ARY_FLAG;

      var isCombo =
        (srcBitmask == ARY_FLAG && bitmask == CURRY_FLAG) ||
        (srcBitmask == ARY_FLAG && bitmask == REARG_FLAG && data[7].length <= source[8]) ||
        (srcBitmask == (ARY_FLAG | REARG_FLAG) && bitmask == CURRY_FLAG);

      // Exit early if metadata can't be merged.
      if (!(isCommon || isCombo)) {
        return data;
      }
      // Use source `thisArg` if available.
      if (srcBitmask & BIND_FLAG) {
        data[2] = source[2];
        // Set when currying a bound function.
        newBitmask |= (bitmask & BIND_FLAG) ? 0 : CURRY_BOUND_FLAG;
      }
      // Compose partial arguments.
      var value = source[3];
      if (value) {
        var partials = data[3];
        data[3] = partials ? composeArgs(partials, value, source[4]) : arrayCopy(value);
        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : arrayCopy(source[4]);
      }
      // Compose partial right arguments.
      value = source[5];
      if (value) {
        partials = data[5];
        data[5] = partials ? composeArgsRight(partials, value, source[6]) : arrayCopy(value);
        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : arrayCopy(source[6]);
      }
      // Use source `argPos` if available.
      value = source[7];
      if (value) {
        data[7] = arrayCopy(value);
      }
      // Use source `ary` if it's smaller.
      if (srcBitmask & ARY_FLAG) {
        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
      }
      // Use source `arity` if one is not provided.
      if (data[9] == null) {
        data[9] = source[9];
      }
      // Use source `func` and merge bitmasks.
      data[0] = source[0];
      data[1] = newBitmask;

      return data;
    }

    /**
     * Used by `_.defaultsDeep` to customize its `_.merge` use.
     *
     * @private
     * @param {*} objectValue The destination object property value.
     * @param {*} sourceValue The source object property value.
     * @returns {*} Returns the value to assign to the destination object.
     */
    function mergeDefaults(objectValue, sourceValue) {
      return objectValue === undefined ? sourceValue : merge(objectValue, sourceValue, mergeDefaults);
    }

    /**
     * A specialized version of `_.pick` which picks `object` properties specified
     * by `props`.
     *
     * @private
     * @param {Object} object The source object.
     * @param {string[]} props The property names to pick.
     * @returns {Object} Returns the new object.
     */
    function pickByArray(object, props) {
      object = toObject(object);

      var index = -1,
          length = props.length,
          result = {};

      while (++index < length) {
        var key = props[index];
        if (key in object) {
          result[key] = object[key];
        }
      }
      return result;
    }

    /**
     * A specialized version of `_.pick` which picks `object` properties `predicate`
     * returns truthy for.
     *
     * @private
     * @param {Object} object The source object.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {Object} Returns the new object.
     */
    function pickByCallback(object, predicate) {
      var result = {};
      baseForIn(object, function(value, key, object) {
        if (predicate(value, key, object)) {
          result[key] = value;
        }
      });
      return result;
    }

    /**
     * Reorder `array` according to the specified indexes where the element at
     * the first index is assigned as the first element, the element at
     * the second index is assigned as the second element, and so on.
     *
     * @private
     * @param {Array} array The array to reorder.
     * @param {Array} indexes The arranged array indexes.
     * @returns {Array} Returns `array`.
     */
    function reorder(array, indexes) {
      var arrLength = array.length,
          length = nativeMin(indexes.length, arrLength),
          oldArray = arrayCopy(array);

      while (length--) {
        var index = indexes[length];
        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
      }
      return array;
    }

    /**
     * Sets metadata for `func`.
     *
     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
     * period of time, it will trip its breaker and transition to an identity function
     * to avoid garbage collection pauses in V8. See [V8 issue 2070](https://code.google.com/p/v8/issues/detail?id=2070)
     * for more details.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var setData = (function() {
      var count = 0,
          lastCalled = 0;

      return function(key, value) {
        var stamp = now(),
            remaining = HOT_SPAN - (stamp - lastCalled);

        lastCalled = stamp;
        if (remaining > 0) {
          if (++count >= HOT_COUNT) {
            return key;
          }
        } else {
          count = 0;
        }
        return baseSetData(key, value);
      };
    }());

    /**
     * A fallback implementation of `Object.keys` which creates an array of the
     * own enumerable property names of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function shimKeys(object) {
      var props = keysIn(object),
          propsLength = props.length,
          length = propsLength && object.length;

      var allowIndexes = !!length && isLength(length) &&
        (isArray(object) || isArguments(object));

      var index = -1,
          result = [];

      while (++index < propsLength) {
        var key = props[index];
        if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * Converts `value` to an array-like object if it's not one.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {Array|Object} Returns the array-like object.
     */
    function toIterable(value) {
      if (value == null) {
        return [];
      }
      if (!isArrayLike(value)) {
        return values(value);
      }
      return isObject(value) ? value : Object(value);
    }

    /**
     * Converts `value` to an object if it's not one.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {Object} Returns the object.
     */
    function toObject(value) {
      return isObject(value) ? value : Object(value);
    }

    /**
     * Converts `value` to property path array if it's not one.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {Array} Returns the property path array.
     */
    function toPath(value) {
      if (isArray(value)) {
        return value;
      }
      var result = [];
      baseToString(value).replace(rePropName, function(match, number, quote, string) {
        result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
      });
      return result;
    }

    /**
     * Creates a clone of `wrapper`.
     *
     * @private
     * @param {Object} wrapper The wrapper to clone.
     * @returns {Object} Returns the cloned wrapper.
     */
    function wrapperClone(wrapper) {
      return wrapper instanceof LazyWrapper
        ? wrapper.clone()
        : new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__, arrayCopy(wrapper.__actions__));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of elements split into groups the length of `size`.
     * If `collection` can't be split evenly, the final chunk will be the remaining
     * elements.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to process.
     * @param {number} [size=1] The length of each chunk.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the new array containing chunks.
     * @example
     *
     * _.chunk(['a', 'b', 'c', 'd'], 2);
     * // => [['a', 'b'], ['c', 'd']]
     *
     * _.chunk(['a', 'b', 'c', 'd'], 3);
     * // => [['a', 'b', 'c'], ['d']]
     */
    function chunk(array, size, guard) {
      if (guard ? isIterateeCall(array, size, guard) : size == null) {
        size = 1;
      } else {
        size = nativeMax(nativeFloor(size) || 1, 1);
      }
      var index = 0,
          length = array ? array.length : 0,
          resIndex = -1,
          result = Array(nativeCeil(length / size));

      while (index < length) {
        result[++resIndex] = baseSlice(array, index, (index += size));
      }
      return result;
    }

    /**
     * Creates an array with all falsey values removed. The values `false`, `null`,
     * `0`, `""`, `undefined`, and `NaN` are falsey.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to compact.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.compact([0, 1, false, 2, '', 3]);
     * // => [1, 2, 3]
     */
    function compact(array) {
      var index = -1,
          length = array ? array.length : 0,
          resIndex = -1,
          result = [];

      while (++index < length) {
        var value = array[index];
        if (value) {
          result[++resIndex] = value;
        }
      }
      return result;
    }

    /**
     * Creates an array of unique `array` values not included in the other
     * provided arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The arrays of values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.difference([1, 2, 3], [4, 2]);
     * // => [1, 3]
     */
    var difference = restParam(function(array, values) {
      return (isObjectLike(array) && isArrayLike(array))
        ? baseDifference(array, baseFlatten(values, false, true))
        : [];
    });

    /**
     * Creates a slice of `array` with `n` elements dropped from the beginning.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.drop([1, 2, 3]);
     * // => [2, 3]
     *
     * _.drop([1, 2, 3], 2);
     * // => [3]
     *
     * _.drop([1, 2, 3], 5);
     * // => []
     *
     * _.drop([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function drop(array, n, guard) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (guard ? isIterateeCall(array, n, guard) : n == null) {
        n = 1;
      }
      return baseSlice(array, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` with `n` elements dropped from the end.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.dropRight([1, 2, 3]);
     * // => [1, 2]
     *
     * _.dropRight([1, 2, 3], 2);
     * // => [1]
     *
     * _.dropRight([1, 2, 3], 5);
     * // => []
     *
     * _.dropRight([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function dropRight(array, n, guard) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (guard ? isIterateeCall(array, n, guard) : n == null) {
        n = 1;
      }
      n = length - (+n || 0);
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the end.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * bound to `thisArg` and invoked with three arguments: (value, index, array).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that match the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.dropRightWhile([1, 2, 3], function(n) {
     *   return n > 1;
     * });
     * // => [1]
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.dropRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user');
     * // => ['barney', 'fred']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.dropRightWhile(users, 'active', false), 'user');
     * // => ['barney']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.dropRightWhile(users, 'active'), 'user');
     * // => ['barney', 'fred', 'pebbles']
     */
    function dropRightWhile(array, predicate, thisArg) {
      return (array && array.length)
        ? baseWhile(array, getCallback(predicate, thisArg, 3), true, true)
        : [];
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the beginning.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * bound to `thisArg` and invoked with three arguments: (value, index, array).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.dropWhile([1, 2, 3], function(n) {
     *   return n < 3;
     * });
     * // => [3]
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.dropWhile(users, { 'user': 'barney', 'active': false }), 'user');
     * // => ['fred', 'pebbles']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.dropWhile(users, 'active', false), 'user');
     * // => ['pebbles']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.dropWhile(users, 'active'), 'user');
     * // => ['barney', 'fred', 'pebbles']
     */
    function dropWhile(array, predicate, thisArg) {
      return (array && array.length)
        ? baseWhile(array, getCallback(predicate, thisArg, 3), true)
        : [];
    }

    /**
     * Fills elements of `array` with `value` from `start` up to, but not
     * including, `end`.
     *
     * **Note:** This method mutates `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _.fill(array, 'a');
     * console.log(array);
     * // => ['a', 'a', 'a']
     *
     * _.fill(Array(3), 2);
     * // => [2, 2, 2]
     *
     * _.fill([4, 6, 8], '*', 1, 2);
     * // => [4, '*', 8]
     */
    function fill(array, value, start, end) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
        start = 0;
        end = length;
      }
      return baseFill(array, value, start, end);
    }

    /**
     * This method is like `_.find` except that it returns the index of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.findIndex(users, function(chr) {
     *   return chr.user == 'barney';
     * });
     * // => 0
     *
     * // using the `_.matches` callback shorthand
     * _.findIndex(users, { 'user': 'fred', 'active': false });
     * // => 1
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.findIndex(users, 'active', false);
     * // => 0
     *
     * // using the `_.property` callback shorthand
     * _.findIndex(users, 'active');
     * // => 2
     */
    var findIndex = createFindIndex();

    /**
     * This method is like `_.findIndex` except that it iterates over elements
     * of `collection` from right to left.
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.findLastIndex(users, function(chr) {
     *   return chr.user == 'pebbles';
     * });
     * // => 2
     *
     * // using the `_.matches` callback shorthand
     * _.findLastIndex(users, { 'user': 'barney', 'active': true });
     * // => 0
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.findLastIndex(users, 'active', false);
     * // => 2
     *
     * // using the `_.property` callback shorthand
     * _.findLastIndex(users, 'active');
     * // => 0
     */
    var findLastIndex = createFindIndex(true);

    /**
     * Gets the first element of `array`.
     *
     * @static
     * @memberOf _
     * @alias head
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the first element of `array`.
     * @example
     *
     * _.first([1, 2, 3]);
     * // => 1
     *
     * _.first([]);
     * // => undefined
     */
    function first(array) {
      return array ? array[0] : undefined;
    }

    /**
     * Flattens a nested array. If `isDeep` is `true` the array is recursively
     * flattened, otherwise it is only flattened a single level.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to flatten.
     * @param {boolean} [isDeep] Specify a deep flatten.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flatten([1, [2, 3, [4]]]);
     * // => [1, 2, 3, [4]]
     *
     * // using `isDeep`
     * _.flatten([1, [2, 3, [4]]], true);
     * // => [1, 2, 3, 4]
     */
    function flatten(array, isDeep, guard) {
      var length = array ? array.length : 0;
      if (guard && isIterateeCall(array, isDeep, guard)) {
        isDeep = false;
      }
      return length ? baseFlatten(array, isDeep) : [];
    }

    /**
     * Recursively flattens a nested array.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to recursively flatten.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flattenDeep([1, [2, 3, [4]]]);
     * // => [1, 2, 3, 4]
     */
    function flattenDeep(array) {
      var length = array ? array.length : 0;
      return length ? baseFlatten(array, true) : [];
    }

    /**
     * Gets the index at which the first occurrence of `value` is found in `array`
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons. If `fromIndex` is negative, it is used as the offset
     * from the end of `array`. If `array` is sorted providing `true` for `fromIndex`
     * performs a faster binary search.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to search.
     * @param {*} value The value to search for.
     * @param {boolean|number} [fromIndex=0] The index to search from or `true`
     *  to perform a binary search on a sorted array.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.indexOf([1, 2, 1, 2], 2);
     * // => 1
     *
     * // using `fromIndex`
     * _.indexOf([1, 2, 1, 2], 2, 2);
     * // => 3
     *
     * // performing a binary search
     * _.indexOf([1, 1, 2, 2], 2, true);
     * // => 2
     */
    function indexOf(array, value, fromIndex) {
      var length = array ? array.length : 0;
      if (!length) {
        return -1;
      }
      if (typeof fromIndex == 'number') {
        fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : fromIndex;
      } else if (fromIndex) {
        var index = binaryIndex(array, value);
        if (index < length &&
            (value === value ? (value === array[index]) : (array[index] !== array[index]))) {
          return index;
        }
        return -1;
      }
      return baseIndexOf(array, value, fromIndex || 0);
    }

    /**
     * Gets all but the last element of `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.initial([1, 2, 3]);
     * // => [1, 2]
     */
    function initial(array) {
      return dropRight(array, 1);
    }

    /**
     * Creates an array of unique values that are included in all of the provided
     * arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of shared values.
     * @example
     * _.intersection([1, 2], [4, 2], [2, 1]);
     * // => [2]
     */
    var intersection = restParam(function(arrays) {
      var othLength = arrays.length,
          othIndex = othLength,
          caches = Array(length),
          indexOf = getIndexOf(),
          isCommon = indexOf == baseIndexOf,
          result = [];

      while (othIndex--) {
        var value = arrays[othIndex] = isArrayLike(value = arrays[othIndex]) ? value : [];
        caches[othIndex] = (isCommon && value.length >= 120) ? createCache(othIndex && value) : null;
      }
      var array = arrays[0],
          index = -1,
          length = array ? array.length : 0,
          seen = caches[0];

      outer:
      while (++index < length) {
        value = array[index];
        if ((seen ? cacheIndexOf(seen, value) : indexOf(result, value, 0)) < 0) {
          var othIndex = othLength;
          while (--othIndex) {
            var cache = caches[othIndex];
            if ((cache ? cacheIndexOf(cache, value) : indexOf(arrays[othIndex], value, 0)) < 0) {
              continue outer;
            }
          }
          if (seen) {
            seen.push(value);
          }
          result.push(value);
        }
      }
      return result;
    });

    /**
     * Gets the last element of `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the last element of `array`.
     * @example
     *
     * _.last([1, 2, 3]);
     * // => 3
     */
    function last(array) {
      var length = array ? array.length : 0;
      return length ? array[length - 1] : undefined;
    }

    /**
     * This method is like `_.indexOf` except that it iterates over elements of
     * `array` from right to left.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to search.
     * @param {*} value The value to search for.
     * @param {boolean|number} [fromIndex=array.length-1] The index to search from
     *  or `true` to perform a binary search on a sorted array.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.lastIndexOf([1, 2, 1, 2], 2);
     * // => 3
     *
     * // using `fromIndex`
     * _.lastIndexOf([1, 2, 1, 2], 2, 2);
     * // => 1
     *
     * // performing a binary search
     * _.lastIndexOf([1, 1, 2, 2], 2, true);
     * // => 3
     */
    function lastIndexOf(array, value, fromIndex) {
      var length = array ? array.length : 0;
      if (!length) {
        return -1;
      }
      var index = length;
      if (typeof fromIndex == 'number') {
        index = (fromIndex < 0 ? nativeMax(length + fromIndex, 0) : nativeMin(fromIndex || 0, length - 1)) + 1;
      } else if (fromIndex) {
        index = binaryIndex(array, value, true) - 1;
        var other = array[index];
        if (value === value ? (value === other) : (other !== other)) {
          return index;
        }
        return -1;
      }
      if (value !== value) {
        return indexOfNaN(array, index, true);
      }
      while (index--) {
        if (array[index] === value) {
          return index;
        }
      }
      return -1;
    }

    /**
     * Removes all provided values from `array` using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * **Note:** Unlike `_.without`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...*} [values] The values to remove.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3, 1, 2, 3];
     *
     * _.pull(array, 2, 3);
     * console.log(array);
     * // => [1, 1]
     */
    function pull() {
      var args = arguments,
          array = args[0];

      if (!(array && array.length)) {
        return array;
      }
      var index = 0,
          indexOf = getIndexOf(),
          length = args.length;

      while (++index < length) {
        var fromIndex = 0,
            value = args[index];

        while ((fromIndex = indexOf(array, value, fromIndex)) > -1) {
          splice.call(array, fromIndex, 1);
        }
      }
      return array;
    }

    /**
     * Removes elements from `array` corresponding to the given indexes and returns
     * an array of the removed elements. Indexes may be specified as an array of
     * indexes or as individual arguments.
     *
     * **Note:** Unlike `_.at`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...(number|number[])} [indexes] The indexes of elements to remove,
     *  specified as individual indexes or arrays of indexes.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = [5, 10, 15, 20];
     * var evens = _.pullAt(array, 1, 3);
     *
     * console.log(array);
     * // => [5, 15]
     *
     * console.log(evens);
     * // => [10, 20]
     */
    var pullAt = restParam(function(array, indexes) {
      indexes = baseFlatten(indexes);

      var result = baseAt(array, indexes);
      basePullAt(array, indexes.sort(baseCompareAscending));
      return result;
    });

    /**
     * Removes all elements from `array` that `predicate` returns truthy for
     * and returns an array of the removed elements. The predicate is bound to
     * `thisArg` and invoked with three arguments: (value, index, array).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * **Note:** Unlike `_.filter`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = [1, 2, 3, 4];
     * var evens = _.remove(array, function(n) {
     *   return n % 2 == 0;
     * });
     *
     * console.log(array);
     * // => [1, 3]
     *
     * console.log(evens);
     * // => [2, 4]
     */
    function remove(array, predicate, thisArg) {
      var result = [];
      if (!(array && array.length)) {
        return result;
      }
      var index = -1,
          indexes = [],
          length = array.length;

      predicate = getCallback(predicate, thisArg, 3);
      while (++index < length) {
        var value = array[index];
        if (predicate(value, index, array)) {
          result.push(value);
          indexes.push(index);
        }
      }
      basePullAt(array, indexes);
      return result;
    }

    /**
     * Gets all but the first element of `array`.
     *
     * @static
     * @memberOf _
     * @alias tail
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.rest([1, 2, 3]);
     * // => [2, 3]
     */
    function rest(array) {
      return drop(array, 1);
    }

    /**
     * Creates a slice of `array` from `start` up to, but not including, `end`.
     *
     * **Note:** This method is used instead of `Array#slice` to support node
     * lists in IE < 9 and to ensure dense arrays are returned.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function slice(array, start, end) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
        start = 0;
        end = length;
      }
      return baseSlice(array, start, end);
    }

    /**
     * Uses a binary search to determine the lowest index at which `value` should
     * be inserted into `array` in order to maintain its sort order. If an iteratee
     * function is provided it is invoked for `value` and each element of `array`
     * to compute their sort ranking. The iteratee is bound to `thisArg` and
     * invoked with one argument; (value).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedIndex([30, 50], 40);
     * // => 1
     *
     * _.sortedIndex([4, 4, 5, 5], 5);
     * // => 2
     *
     * var dict = { 'data': { 'thirty': 30, 'forty': 40, 'fifty': 50 } };
     *
     * // using an iteratee function
     * _.sortedIndex(['thirty', 'fifty'], 'forty', function(word) {
     *   return this.data[word];
     * }, dict);
     * // => 1
     *
     * // using the `_.property` callback shorthand
     * _.sortedIndex([{ 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
     * // => 1
     */
    var sortedIndex = createSortedIndex();

    /**
     * This method is like `_.sortedIndex` except that it returns the highest
     * index at which `value` should be inserted into `array` in order to
     * maintain its sort order.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedLastIndex([4, 4, 5, 5], 5);
     * // => 4
     */
    var sortedLastIndex = createSortedIndex(true);

    /**
     * Creates a slice of `array` with `n` elements taken from the beginning.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.take([1, 2, 3]);
     * // => [1]
     *
     * _.take([1, 2, 3], 2);
     * // => [1, 2]
     *
     * _.take([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.take([1, 2, 3], 0);
     * // => []
     */
    function take(array, n, guard) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (guard ? isIterateeCall(array, n, guard) : n == null) {
        n = 1;
      }
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` with `n` elements taken from the end.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.takeRight([1, 2, 3]);
     * // => [3]
     *
     * _.takeRight([1, 2, 3], 2);
     * // => [2, 3]
     *
     * _.takeRight([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.takeRight([1, 2, 3], 0);
     * // => []
     */
    function takeRight(array, n, guard) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (guard ? isIterateeCall(array, n, guard) : n == null) {
        n = 1;
      }
      n = length - (+n || 0);
      return baseSlice(array, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` with elements taken from the end. Elements are
     * taken until `predicate` returns falsey. The predicate is bound to `thisArg`
     * and invoked with three arguments: (value, index, array).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.takeRightWhile([1, 2, 3], function(n) {
     *   return n > 1;
     * });
     * // => [2, 3]
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.takeRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user');
     * // => ['pebbles']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.takeRightWhile(users, 'active', false), 'user');
     * // => ['fred', 'pebbles']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.takeRightWhile(users, 'active'), 'user');
     * // => []
     */
    function takeRightWhile(array, predicate, thisArg) {
      return (array && array.length)
        ? baseWhile(array, getCallback(predicate, thisArg, 3), false, true)
        : [];
    }

    /**
     * Creates a slice of `array` with elements taken from the beginning. Elements
     * are taken until `predicate` returns falsey. The predicate is bound to
     * `thisArg` and invoked with three arguments: (value, index, array).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.takeWhile([1, 2, 3], function(n) {
     *   return n < 3;
     * });
     * // => [1, 2]
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false},
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.takeWhile(users, { 'user': 'barney', 'active': false }), 'user');
     * // => ['barney']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.takeWhile(users, 'active', false), 'user');
     * // => ['barney', 'fred']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.takeWhile(users, 'active'), 'user');
     * // => []
     */
    function takeWhile(array, predicate, thisArg) {
      return (array && array.length)
        ? baseWhile(array, getCallback(predicate, thisArg, 3))
        : [];
    }

    /**
     * Creates an array of unique values, in order, from all of the provided arrays
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * _.union([1, 2], [4, 2], [2, 1]);
     * // => [1, 2, 4]
     */
    var union = restParam(function(arrays) {
      return baseUniq(baseFlatten(arrays, false, true));
    });

    /**
     * Creates a duplicate-free version of an array, using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons, in which only the first occurence of each element
     * is kept. Providing `true` for `isSorted` performs a faster search algorithm
     * for sorted arrays. If an iteratee function is provided it is invoked for
     * each element in the array to generate the criterion by which uniqueness
     * is computed. The `iteratee` is bound to `thisArg` and invoked with three
     * arguments: (value, index, array).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @alias unique
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {boolean} [isSorted] Specify the array is sorted.
     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the new duplicate-value-free array.
     * @example
     *
     * _.uniq([2, 1, 2]);
     * // => [2, 1]
     *
     * // using `isSorted`
     * _.uniq([1, 1, 2], true);
     * // => [1, 2]
     *
     * // using an iteratee function
     * _.uniq([1, 2.5, 1.5, 2], function(n) {
     *   return this.floor(n);
     * }, Math);
     * // => [1, 2.5]
     *
     * // using the `_.property` callback shorthand
     * _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }, { 'x': 2 }]
     */
    function uniq(array, isSorted, iteratee, thisArg) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (isSorted != null && typeof isSorted != 'boolean') {
        thisArg = iteratee;
        iteratee = isIterateeCall(array, isSorted, thisArg) ? undefined : isSorted;
        isSorted = false;
      }
      var callback = getCallback();
      if (!(iteratee == null && callback === baseCallback)) {
        iteratee = callback(iteratee, thisArg, 3);
      }
      return (isSorted && getIndexOf() == baseIndexOf)
        ? sortedUniq(array, iteratee)
        : baseUniq(array, iteratee);
    }

    /**
     * This method is like `_.zip` except that it accepts an array of grouped
     * elements and creates an array regrouping the elements to their pre-zip
     * configuration.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip(['fred', 'barney'], [30, 40], [true, false]);
     * // => [['fred', 30, true], ['barney', 40, false]]
     *
     * _.unzip(zipped);
     * // => [['fred', 'barney'], [30, 40], [true, false]]
     */
    function unzip(array) {
      if (!(array && array.length)) {
        return [];
      }
      var index = -1,
          length = 0;

      array = arrayFilter(array, function(group) {
        if (isArrayLike(group)) {
          length = nativeMax(group.length, length);
          return true;
        }
      });
      var result = Array(length);
      while (++index < length) {
        result[index] = arrayMap(array, baseProperty(index));
      }
      return result;
    }

    /**
     * This method is like `_.unzip` except that it accepts an iteratee to specify
     * how regrouped values should be combined. The `iteratee` is bound to `thisArg`
     * and invoked with four arguments: (accumulator, value, index, group).
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @param {Function} [iteratee] The function to combine regrouped values.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
     * // => [[1, 10, 100], [2, 20, 200]]
     *
     * _.unzipWith(zipped, _.add);
     * // => [3, 30, 300]
     */
    function unzipWith(array, iteratee, thisArg) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      var result = unzip(array);
      if (iteratee == null) {
        return result;
      }
      iteratee = bindCallback(iteratee, thisArg, 4);
      return arrayMap(result, function(group) {
        return arrayReduce(group, iteratee, undefined, true);
      });
    }

    /**
     * Creates an array excluding all provided values using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to filter.
     * @param {...*} [values] The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.without([1, 2, 1, 3], 1, 2);
     * // => [3]
     */
    var without = restParam(function(array, values) {
      return isArrayLike(array)
        ? baseDifference(array, values)
        : [];
    });

    /**
     * Creates an array of unique values that is the [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
     * of the provided arrays.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of values.
     * @example
     *
     * _.xor([1, 2], [4, 2]);
     * // => [1, 4]
     */
    function xor() {
      var index = -1,
          length = arguments.length;

      while (++index < length) {
        var array = arguments[index];
        if (isArrayLike(array)) {
          var result = result
            ? arrayPush(baseDifference(result, array), baseDifference(array, result))
            : array;
        }
      }
      return result ? baseUniq(result) : [];
    }

    /**
     * Creates an array of grouped elements, the first of which contains the first
     * elements of the given arrays, the second of which contains the second elements
     * of the given arrays, and so on.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zip(['fred', 'barney'], [30, 40], [true, false]);
     * // => [['fred', 30, true], ['barney', 40, false]]
     */
    var zip = restParam(unzip);

    /**
     * The inverse of `_.pairs`; this method returns an object composed from arrays
     * of property names and values. Provide either a single two dimensional array,
     * e.g. `[[key1, value1], [key2, value2]]` or two arrays, one of property names
     * and one of corresponding values.
     *
     * @static
     * @memberOf _
     * @alias object
     * @category Array
     * @param {Array} props The property names.
     * @param {Array} [values=[]] The property values.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.zipObject([['fred', 30], ['barney', 40]]);
     * // => { 'fred': 30, 'barney': 40 }
     *
     * _.zipObject(['fred', 'barney'], [30, 40]);
     * // => { 'fred': 30, 'barney': 40 }
     */
    function zipObject(props, values) {
      var index = -1,
          length = props ? props.length : 0,
          result = {};

      if (length && !values && !isArray(props[0])) {
        values = [];
      }
      while (++index < length) {
        var key = props[index];
        if (values) {
          result[key] = values[index];
        } else if (key) {
          result[key[0]] = key[1];
        }
      }
      return result;
    }

    /**
     * This method is like `_.zip` except that it accepts an iteratee to specify
     * how grouped values should be combined. The `iteratee` is bound to `thisArg`
     * and invoked with four arguments: (accumulator, value, index, group).
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @param {Function} [iteratee] The function to combine grouped values.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zipWith([1, 2], [10, 20], [100, 200], _.add);
     * // => [111, 222]
     */
    var zipWith = restParam(function(arrays) {
      var length = arrays.length,
          iteratee = length > 2 ? arrays[length - 2] : undefined,
          thisArg = length > 1 ? arrays[length - 1] : undefined;

      if (length > 2 && typeof iteratee == 'function') {
        length -= 2;
      } else {
        iteratee = (length > 1 && typeof thisArg == 'function') ? (--length, thisArg) : undefined;
        thisArg = undefined;
      }
      arrays.length = length;
      return unzipWith(arrays, iteratee, thisArg);
    });

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` object that wraps `value` with explicit method
     * chaining enabled.
     *
     * @static
     * @memberOf _
     * @category Chain
     * @param {*} value The value to wrap.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36 },
     *   { 'user': 'fred',    'age': 40 },
     *   { 'user': 'pebbles', 'age': 1 }
     * ];
     *
     * var youngest = _.chain(users)
     *   .sortBy('age')
     *   .map(function(chr) {
     *     return chr.user + ' is ' + chr.age;
     *   })
     *   .first()
     *   .value();
     * // => 'pebbles is 1'
     */
    function chain(value) {
      var result = lodash(value);
      result.__chain__ = true;
      return result;
    }

    /**
     * This method invokes `interceptor` and returns `value`. The interceptor is
     * bound to `thisArg` and invoked with one argument; (value). The purpose of
     * this method is to "tap into" a method chain in order to perform operations
     * on intermediate results within the chain.
     *
     * @static
     * @memberOf _
     * @category Chain
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @param {*} [thisArg] The `this` binding of `interceptor`.
     * @returns {*} Returns `value`.
     * @example
     *
     * _([1, 2, 3])
     *  .tap(function(array) {
     *    array.pop();
     *  })
     *  .reverse()
     *  .value();
     * // => [2, 1]
     */
    function tap(value, interceptor, thisArg) {
      interceptor.call(thisArg, value);
      return value;
    }

    /**
     * This method is like `_.tap` except that it returns the result of `interceptor`.
     *
     * @static
     * @memberOf _
     * @category Chain
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @param {*} [thisArg] The `this` binding of `interceptor`.
     * @returns {*} Returns the result of `interceptor`.
     * @example
     *
     * _('  abc  ')
     *  .chain()
     *  .trim()
     *  .thru(function(value) {
     *    return [value];
     *  })
     *  .value();
     * // => ['abc']
     */
    function thru(value, interceptor, thisArg) {
      return interceptor.call(thisArg, value);
    }

    /**
     * Enables explicit method chaining on the wrapper object.
     *
     * @name chain
     * @memberOf _
     * @category Chain
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * // without explicit chaining
     * _(users).first();
     * // => { 'user': 'barney', 'age': 36 }
     *
     * // with explicit chaining
     * _(users).chain()
     *   .first()
     *   .pick('user')
     *   .value();
     * // => { 'user': 'barney' }
     */
    function wrapperChain() {
      return chain(this);
    }

    /**
     * Executes the chained sequence and returns the wrapped result.
     *
     * @name commit
     * @memberOf _
     * @category Chain
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2];
     * var wrapped = _(array).push(3);
     *
     * console.log(array);
     * // => [1, 2]
     *
     * wrapped = wrapped.commit();
     * console.log(array);
     * // => [1, 2, 3]
     *
     * wrapped.last();
     * // => 3
     *
     * console.log(array);
     * // => [1, 2, 3]
     */
    function wrapperCommit() {
      return new LodashWrapper(this.value(), this.__chain__);
    }

    /**
     * Creates a new array joining a wrapped array with any additional arrays
     * and/or values.
     *
     * @name concat
     * @memberOf _
     * @category Chain
     * @param {...*} [values] The values to concatenate.
     * @returns {Array} Returns the new concatenated array.
     * @example
     *
     * var array = [1];
     * var wrapped = _(array).concat(2, [3], [[4]]);
     *
     * console.log(wrapped.value());
     * // => [1, 2, 3, [4]]
     *
     * console.log(array);
     * // => [1]
     */
    var wrapperConcat = restParam(function(values) {
      values = baseFlatten(values);
      return this.thru(function(array) {
        return arrayConcat(isArray(array) ? array : [toObject(array)], values);
      });
    });

    /**
     * Creates a clone of the chained sequence planting `value` as the wrapped value.
     *
     * @name plant
     * @memberOf _
     * @category Chain
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2];
     * var wrapped = _(array).map(function(value) {
     *   return Math.pow(value, 2);
     * });
     *
     * var other = [3, 4];
     * var otherWrapped = wrapped.plant(other);
     *
     * otherWrapped.value();
     * // => [9, 16]
     *
     * wrapped.value();
     * // => [1, 4]
     */
    function wrapperPlant(value) {
      var result,
          parent = this;

      while (parent instanceof baseLodash) {
        var clone = wrapperClone(parent);
        if (result) {
          previous.__wrapped__ = clone;
        } else {
          result = clone;
        }
        var previous = clone;
        parent = parent.__wrapped__;
      }
      previous.__wrapped__ = value;
      return result;
    }

    /**
     * Reverses the wrapped array so the first element becomes the last, the
     * second element becomes the second to last, and so on.
     *
     * **Note:** This method mutates the wrapped array.
     *
     * @name reverse
     * @memberOf _
     * @category Chain
     * @returns {Object} Returns the new reversed `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _(array).reverse().value()
     * // => [3, 2, 1]
     *
     * console.log(array);
     * // => [3, 2, 1]
     */
    function wrapperReverse() {
      var value = this.__wrapped__;

      var interceptor = function(value) {
        return (wrapped && wrapped.__dir__ < 0) ? value : value.reverse();
      };
      if (value instanceof LazyWrapper) {
        var wrapped = value;
        if (this.__actions__.length) {
          wrapped = new LazyWrapper(this);
        }
        wrapped = wrapped.reverse();
        wrapped.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
        return new LodashWrapper(wrapped, this.__chain__);
      }
      return this.thru(interceptor);
    }

    /**
     * Produces the result of coercing the unwrapped value to a string.
     *
     * @name toString
     * @memberOf _
     * @category Chain
     * @returns {string} Returns the coerced string value.
     * @example
     *
     * _([1, 2, 3]).toString();
     * // => '1,2,3'
     */
    function wrapperToString() {
      return (this.value() + '');
    }

    /**
     * Executes the chained sequence to extract the unwrapped value.
     *
     * @name value
     * @memberOf _
     * @alias run, toJSON, valueOf
     * @category Chain
     * @returns {*} Returns the resolved unwrapped value.
     * @example
     *
     * _([1, 2, 3]).value();
     * // => [1, 2, 3]
     */
    function wrapperValue() {
      return baseWrapperValue(this.__wrapped__, this.__actions__);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of elements corresponding to the given keys, or indexes,
     * of `collection`. Keys may be specified as individual arguments or as arrays
     * of keys.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {...(number|number[]|string|string[])} [props] The property names
     *  or indexes of elements to pick, specified individually or in arrays.
     * @returns {Array} Returns the new array of picked elements.
     * @example
     *
     * _.at(['a', 'b', 'c'], [0, 2]);
     * // => ['a', 'c']
     *
     * _.at(['barney', 'fred', 'pebbles'], 0, 2);
     * // => ['barney', 'pebbles']
     */
    var at = restParam(function(collection, props) {
      return baseAt(collection, baseFlatten(props));
    });

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` through `iteratee`. The corresponding value
     * of each key is the number of times the key was returned by `iteratee`.
     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.countBy([4.3, 6.1, 6.4], function(n) {
     *   return Math.floor(n);
     * });
     * // => { '4': 1, '6': 2 }
     *
     * _.countBy([4.3, 6.1, 6.4], function(n) {
     *   return this.floor(n);
     * }, Math);
     * // => { '4': 1, '6': 2 }
     *
     * _.countBy(['one', 'two', 'three'], 'length');
     * // => { '3': 2, '5': 1 }
     */
    var countBy = createAggregator(function(result, value, key) {
      hasOwnProperty.call(result, key) ? ++result[key] : (result[key] = 1);
    });

    /**
     * Checks if `predicate` returns truthy for **all** elements of `collection`.
     * The predicate is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @alias all
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`.
     * @example
     *
     * _.every([true, 1, null, 'yes'], Boolean);
     * // => false
     *
     * var users = [
     *   { 'user': 'barney', 'active': false },
     *   { 'user': 'fred',   'active': false }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.every(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.every(users, 'active', false);
     * // => true
     *
     * // using the `_.property` callback shorthand
     * _.every(users, 'active');
     * // => false
     */
    function every(collection, predicate, thisArg) {
      var func = isArray(collection) ? arrayEvery : baseEvery;
      if (thisArg && isIterateeCall(collection, predicate, thisArg)) {
        predicate = undefined;
      }
      if (typeof predicate != 'function' || thisArg !== undefined) {
        predicate = getCallback(predicate, thisArg, 3);
      }
      return func(collection, predicate);
    }

    /**
     * Iterates over elements of `collection`, returning an array of all elements
     * `predicate` returns truthy for. The predicate is bound to `thisArg` and
     * invoked with three arguments: (value, index|key, collection).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @alias select
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the new filtered array.
     * @example
     *
     * _.filter([4, 5, 6], function(n) {
     *   return n % 2 == 0;
     * });
     * // => [4, 6]
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.filter(users, { 'age': 36, 'active': true }), 'user');
     * // => ['barney']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.filter(users, 'active', false), 'user');
     * // => ['fred']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.filter(users, 'active'), 'user');
     * // => ['barney']
     */
    function filter(collection, predicate, thisArg) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      predicate = getCallback(predicate, thisArg, 3);
      return func(collection, predicate);
    }

    /**
     * Iterates over elements of `collection`, returning the first element
     * `predicate` returns truthy for. The predicate is bound to `thisArg` and
     * invoked with three arguments: (value, index|key, collection).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @alias detect
     * @category Collection
     * @param {Array|Object|string} collection The collection to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': true },
     *   { 'user': 'fred',    'age': 40, 'active': false },
     *   { 'user': 'pebbles', 'age': 1,  'active': true }
     * ];
     *
     * _.result(_.find(users, function(chr) {
     *   return chr.age < 40;
     * }), 'user');
     * // => 'barney'
     *
     * // using the `_.matches` callback shorthand
     * _.result(_.find(users, { 'age': 1, 'active': true }), 'user');
     * // => 'pebbles'
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.result(_.find(users, 'active', false), 'user');
     * // => 'fred'
     *
     * // using the `_.property` callback shorthand
     * _.result(_.find(users, 'active'), 'user');
     * // => 'barney'
     */
    var find = createFind(baseEach);

    /**
     * This method is like `_.find` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * _.findLast([1, 2, 3, 4], function(n) {
     *   return n % 2 == 1;
     * });
     * // => 3
     */
    var findLast = createFind(baseEachRight, true);

    /**
     * Performs a deep comparison between each element in `collection` and the
     * source object, returning the first element that has equivalent property
     * values.
     *
     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
     * numbers, `Object` objects, regexes, and strings. Objects are compared by
     * their own, not inherited, enumerable properties. For comparing a single
     * own or inherited property value see `_.matchesProperty`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to search.
     * @param {Object} source The object of property values to match.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * _.result(_.findWhere(users, { 'age': 36, 'active': true }), 'user');
     * // => 'barney'
     *
     * _.result(_.findWhere(users, { 'age': 40, 'active': false }), 'user');
     * // => 'fred'
     */
    function findWhere(collection, source) {
      return find(collection, baseMatches(source));
    }

    /**
     * Iterates over elements of `collection` invoking `iteratee` for each element.
     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection). Iteratee functions may exit iteration early
     * by explicitly returning `false`.
     *
     * **Note:** As with other "Collections" methods, objects with a "length" property
     * are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn`
     * may be used for object iteration.
     *
     * @static
     * @memberOf _
     * @alias each
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array|Object|string} Returns `collection`.
     * @example
     *
     * _([1, 2]).forEach(function(n) {
     *   console.log(n);
     * }).value();
     * // => logs each value from left to right and returns the array
     *
     * _.forEach({ 'a': 1, 'b': 2 }, function(n, key) {
     *   console.log(n, key);
     * });
     * // => logs each value-key pair and returns the object (iteration order is not guaranteed)
     */
    var forEach = createForEach(arrayEach, baseEach);

    /**
     * This method is like `_.forEach` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @alias eachRight
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array|Object|string} Returns `collection`.
     * @example
     *
     * _([1, 2]).forEachRight(function(n) {
     *   console.log(n);
     * }).value();
     * // => logs each value from right to left and returns the array
     */
    var forEachRight = createForEach(arrayEachRight, baseEachRight);

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` through `iteratee`. The corresponding value
     * of each key is an array of the elements responsible for generating the key.
     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.groupBy([4.2, 6.1, 6.4], function(n) {
     *   return Math.floor(n);
     * });
     * // => { '4': [4.2], '6': [6.1, 6.4] }
     *
     * _.groupBy([4.2, 6.1, 6.4], function(n) {
     *   return this.floor(n);
     * }, Math);
     * // => { '4': [4.2], '6': [6.1, 6.4] }
     *
     * // using the `_.property` callback shorthand
     * _.groupBy(['one', 'two', 'three'], 'length');
     * // => { '3': ['one', 'two'], '5': ['three'] }
     */
    var groupBy = createAggregator(function(result, value, key) {
      if (hasOwnProperty.call(result, key)) {
        result[key].push(value);
      } else {
        result[key] = [value];
      }
    });

    /**
     * Checks if `value` is in `collection` using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons. If `fromIndex` is negative, it is used as the offset
     * from the end of `collection`.
     *
     * @static
     * @memberOf _
     * @alias contains, include
     * @category Collection
     * @param {Array|Object|string} collection The collection to search.
     * @param {*} target The value to search for.
     * @param {number} [fromIndex=0] The index to search from.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
     * @returns {boolean} Returns `true` if a matching element is found, else `false`.
     * @example
     *
     * _.includes([1, 2, 3], 1);
     * // => true
     *
     * _.includes([1, 2, 3], 1, 2);
     * // => false
     *
     * _.includes({ 'user': 'fred', 'age': 40 }, 'fred');
     * // => true
     *
     * _.includes('pebbles', 'eb');
     * // => true
     */
    function includes(collection, target, fromIndex, guard) {
      var length = collection ? getLength(collection) : 0;
      if (!isLength(length)) {
        collection = values(collection);
        length = collection.length;
      }
      if (typeof fromIndex != 'number' || (guard && isIterateeCall(target, fromIndex, guard))) {
        fromIndex = 0;
      } else {
        fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0);
      }
      return (typeof collection == 'string' || !isArray(collection) && isString(collection))
        ? (fromIndex <= length && collection.indexOf(target, fromIndex) > -1)
        : (!!length && getIndexOf(collection, target, fromIndex) > -1);
    }

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` through `iteratee`. The corresponding value
     * of each key is the last element responsible for generating the key. The
     * iteratee function is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * var keyData = [
     *   { 'dir': 'left', 'code': 97 },
     *   { 'dir': 'right', 'code': 100 }
     * ];
     *
     * _.indexBy(keyData, 'dir');
     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
     *
     * _.indexBy(keyData, function(object) {
     *   return String.fromCharCode(object.code);
     * });
     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
     *
     * _.indexBy(keyData, function(object) {
     *   return this.fromCharCode(object.code);
     * }, String);
     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
     */
    var indexBy = createAggregator(function(result, value, key) {
      result[key] = value;
    });

    /**
     * Invokes the method at `path` of each element in `collection`, returning
     * an array of the results of each invoked method. Any additional arguments
     * are provided to each invoked method. If `methodName` is a function it is
     * invoked for, and `this` bound to, each element in `collection`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Array|Function|string} path The path of the method to invoke or
     *  the function invoked per iteration.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * _.invoke([[5, 1, 7], [3, 2, 1]], 'sort');
     * // => [[1, 5, 7], [1, 2, 3]]
     *
     * _.invoke([123, 456], String.prototype.split, '');
     * // => [['1', '2', '3'], ['4', '5', '6']]
     */
    var invoke = restParam(function(collection, path, args) {
      var index = -1,
          isFunc = typeof path == 'function',
          isProp = isKey(path),
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value) {
        var func = isFunc ? path : ((isProp && value != null) ? value[path] : undefined);
        result[++index] = func ? func.apply(value, args) : invokePath(value, path, args);
      });
      return result;
    });

    /**
     * Creates an array of values by running each element in `collection` through
     * `iteratee`. The `iteratee` is bound to `thisArg` and invoked with three
     * arguments: (value, index|key, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
     *
     * The guarded methods are:
     * `ary`, `callback`, `chunk`, `clone`, `create`, `curry`, `curryRight`,
     * `drop`, `dropRight`, `every`, `fill`, `flatten`, `invert`, `max`, `min`,
     * `parseInt`, `slice`, `sortBy`, `take`, `takeRight`, `template`, `trim`,
     * `trimLeft`, `trimRight`, `trunc`, `random`, `range`, `sample`, `some`,
     * `sum`, `uniq`, and `words`
     *
     * @static
     * @memberOf _
     * @alias collect
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the new mapped array.
     * @example
     *
     * function timesThree(n) {
     *   return n * 3;
     * }
     *
     * _.map([1, 2], timesThree);
     * // => [3, 6]
     *
     * _.map({ 'a': 1, 'b': 2 }, timesThree);
     * // => [3, 6] (iteration order is not guaranteed)
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * // using the `_.property` callback shorthand
     * _.map(users, 'user');
     * // => ['barney', 'fred']
     */
    function map(collection, iteratee, thisArg) {
      var func = isArray(collection) ? arrayMap : baseMap;
      iteratee = getCallback(iteratee, thisArg, 3);
      return func(collection, iteratee);
    }

    /**
     * Creates an array of elements split into two groups, the first of which
     * contains elements `predicate` returns truthy for, while the second of which
     * contains elements `predicate` returns falsey for. The predicate is bound
     * to `thisArg` and invoked with three arguments: (value, index|key, collection).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the array of grouped elements.
     * @example
     *
     * _.partition([1, 2, 3], function(n) {
     *   return n % 2;
     * });
     * // => [[1, 3], [2]]
     *
     * _.partition([1.2, 2.3, 3.4], function(n) {
     *   return this.floor(n) % 2;
     * }, Math);
     * // => [[1.2, 3.4], [2.3]]
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': false },
     *   { 'user': 'fred',    'age': 40, 'active': true },
     *   { 'user': 'pebbles', 'age': 1,  'active': false }
     * ];
     *
     * var mapper = function(array) {
     *   return _.pluck(array, 'user');
     * };
     *
     * // using the `_.matches` callback shorthand
     * _.map(_.partition(users, { 'age': 1, 'active': false }), mapper);
     * // => [['pebbles'], ['barney', 'fred']]
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.map(_.partition(users, 'active', false), mapper);
     * // => [['barney', 'pebbles'], ['fred']]
     *
     * // using the `_.property` callback shorthand
     * _.map(_.partition(users, 'active'), mapper);
     * // => [['fred'], ['barney', 'pebbles']]
     */
    var partition = createAggregator(function(result, value, key) {
      result[key ? 0 : 1].push(value);
    }, function() { return [[], []]; });

    /**
     * Gets the property value of `path` from all elements in `collection`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Array|string} path The path of the property to pluck.
     * @returns {Array} Returns the property values.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * _.pluck(users, 'user');
     * // => ['barney', 'fred']
     *
     * var userIndex = _.indexBy(users, 'user');
     * _.pluck(userIndex, 'age');
     * // => [36, 40] (iteration order is not guaranteed)
     */
    function pluck(collection, path) {
      return map(collection, property(path));
    }

    /**
     * Reduces `collection` to a value which is the accumulated result of running
     * each element in `collection` through `iteratee`, where each successive
     * invocation is supplied the return value of the previous. If `accumulator`
     * is not provided the first element of `collection` is used as the initial
     * value. The `iteratee` is bound to `thisArg` and invoked with four arguments:
     * (accumulator, value, index|key, collection).
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.reduce`, `_.reduceRight`, and `_.transform`.
     *
     * The guarded methods are:
     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `sortByAll`,
     * and `sortByOrder`
     *
     * @static
     * @memberOf _
     * @alias foldl, inject
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {*} Returns the accumulated value.
     * @example
     *
     * _.reduce([1, 2], function(total, n) {
     *   return total + n;
     * });
     * // => 3
     *
     * _.reduce({ 'a': 1, 'b': 2 }, function(result, n, key) {
     *   result[key] = n * 3;
     *   return result;
     * }, {});
     * // => { 'a': 3, 'b': 6 } (iteration order is not guaranteed)
     */
    var reduce = createReduce(arrayReduce, baseEach);

    /**
     * This method is like `_.reduce` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @alias foldr
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {*} Returns the accumulated value.
     * @example
     *
     * var array = [[0, 1], [2, 3], [4, 5]];
     *
     * _.reduceRight(array, function(flattened, other) {
     *   return flattened.concat(other);
     * }, []);
     * // => [4, 5, 2, 3, 0, 1]
     */
    var reduceRight = createReduce(arrayReduceRight, baseEachRight);

    /**
     * The opposite of `_.filter`; this method returns the elements of `collection`
     * that `predicate` does **not** return truthy for.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the new filtered array.
     * @example
     *
     * _.reject([1, 2, 3, 4], function(n) {
     *   return n % 2 == 0;
     * });
     * // => [1, 3]
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false },
     *   { 'user': 'fred',   'age': 40, 'active': true }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.reject(users, { 'age': 40, 'active': true }), 'user');
     * // => ['barney']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.reject(users, 'active', false), 'user');
     * // => ['fred']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.reject(users, 'active'), 'user');
     * // => ['barney']
     */
    function reject(collection, predicate, thisArg) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      predicate = getCallback(predicate, thisArg, 3);
      return func(collection, function(value, index, collection) {
        return !predicate(value, index, collection);
      });
    }

    /**
     * Gets a random element or `n` random elements from a collection.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to sample.
     * @param {number} [n] The number of elements to sample.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {*} Returns the random sample(s).
     * @example
     *
     * _.sample([1, 2, 3, 4]);
     * // => 2
     *
     * _.sample([1, 2, 3, 4], 2);
     * // => [3, 1]
     */
    function sample(collection, n, guard) {
      if (guard ? isIterateeCall(collection, n, guard) : n == null) {
        collection = toIterable(collection);
        var length = collection.length;
        return length > 0 ? collection[baseRandom(0, length - 1)] : undefined;
      }
      var index = -1,
          result = toArray(collection),
          length = result.length,
          lastIndex = length - 1;

      n = nativeMin(n < 0 ? 0 : (+n || 0), length);
      while (++index < n) {
        var rand = baseRandom(index, lastIndex),
            value = result[rand];

        result[rand] = result[index];
        result[index] = value;
      }
      result.length = n;
      return result;
    }

    /**
     * Creates an array of shuffled values, using a version of the
     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to shuffle.
     * @returns {Array} Returns the new shuffled array.
     * @example
     *
     * _.shuffle([1, 2, 3, 4]);
     * // => [4, 1, 3, 2]
     */
    function shuffle(collection) {
      return sample(collection, POSITIVE_INFINITY);
    }

    /**
     * Gets the size of `collection` by returning its length for array-like
     * values or the number of own enumerable properties for objects.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to inspect.
     * @returns {number} Returns the size of `collection`.
     * @example
     *
     * _.size([1, 2, 3]);
     * // => 3
     *
     * _.size({ 'a': 1, 'b': 2 });
     * // => 2
     *
     * _.size('pebbles');
     * // => 7
     */
    function size(collection) {
      var length = collection ? getLength(collection) : 0;
      return isLength(length) ? length : keys(collection).length;
    }

    /**
     * Checks if `predicate` returns truthy for **any** element of `collection`.
     * The function returns as soon as it finds a passing value and does not iterate
     * over the entire collection. The predicate is bound to `thisArg` and invoked
     * with three arguments: (value, index|key, collection).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @alias any
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     * @example
     *
     * _.some([null, 0, 'yes', false], Boolean);
     * // => true
     *
     * var users = [
     *   { 'user': 'barney', 'active': true },
     *   { 'user': 'fred',   'active': false }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.some(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.some(users, 'active', false);
     * // => true
     *
     * // using the `_.property` callback shorthand
     * _.some(users, 'active');
     * // => true
     */
    function some(collection, predicate, thisArg) {
      var func = isArray(collection) ? arraySome : baseSome;
      if (thisArg && isIterateeCall(collection, predicate, thisArg)) {
        predicate = undefined;
      }
      if (typeof predicate != 'function' || thisArg !== undefined) {
        predicate = getCallback(predicate, thisArg, 3);
      }
      return func(collection, predicate);
    }

    /**
     * Creates an array of elements, sorted in ascending order by the results of
     * running each element in a collection through `iteratee`. This method performs
     * a stable sort, that is, it preserves the original sort order of equal elements.
     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * _.sortBy([1, 2, 3], function(n) {
     *   return Math.sin(n);
     * });
     * // => [3, 1, 2]
     *
     * _.sortBy([1, 2, 3], function(n) {
     *   return this.sin(n);
     * }, Math);
     * // => [3, 1, 2]
     *
     * var users = [
     *   { 'user': 'fred' },
     *   { 'user': 'pebbles' },
     *   { 'user': 'barney' }
     * ];
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.sortBy(users, 'user'), 'user');
     * // => ['barney', 'fred', 'pebbles']
     */
    function sortBy(collection, iteratee, thisArg) {
      if (collection == null) {
        return [];
      }
      if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
        iteratee = undefined;
      }
      var index = -1;
      iteratee = getCallback(iteratee, thisArg, 3);

      var result = baseMap(collection, function(value, key, collection) {
        return { 'criteria': iteratee(value, key, collection), 'index': ++index, 'value': value };
      });
      return baseSortBy(result, compareAscending);
    }

    /**
     * This method is like `_.sortBy` except that it can sort by multiple iteratees
     * or property names.
     *
     * If a property name is provided for an iteratee the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If an object is provided for an iteratee the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {...(Function|Function[]|Object|Object[]|string|string[])} iteratees
     *  The iteratees to sort by, specified as individual values or arrays of values.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 42 },
     *   { 'user': 'barney', 'age': 34 }
     * ];
     *
     * _.map(_.sortByAll(users, ['user', 'age']), _.values);
     * // => [['barney', 34], ['barney', 36], ['fred', 42], ['fred', 48]]
     *
     * _.map(_.sortByAll(users, 'user', function(chr) {
     *   return Math.floor(chr.age / 10);
     * }), _.values);
     * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]]
     */
    var sortByAll = restParam(function(collection, iteratees) {
      if (collection == null) {
        return [];
      }
      var guard = iteratees[2];
      if (guard && isIterateeCall(iteratees[0], iteratees[1], guard)) {
        iteratees.length = 1;
      }
      return baseSortByOrder(collection, baseFlatten(iteratees), []);
    });

    /**
     * This method is like `_.sortByAll` except that it allows specifying the
     * sort orders of the iteratees to sort by. If `orders` is unspecified, all
     * values are sorted in ascending order. Otherwise, a value is sorted in
     * ascending order if its corresponding order is "asc", and descending if "desc".
     *
     * If a property name is provided for an iteratee the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If an object is provided for an iteratee the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
     * @param {boolean[]} [orders] The sort orders of `iteratees`.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 34 },
     *   { 'user': 'fred',   'age': 42 },
     *   { 'user': 'barney', 'age': 36 }
     * ];
     *
     * // sort by `user` in ascending order and by `age` in descending order
     * _.map(_.sortByOrder(users, ['user', 'age'], ['asc', 'desc']), _.values);
     * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]]
     */
    function sortByOrder(collection, iteratees, orders, guard) {
      if (collection == null) {
        return [];
      }
      if (guard && isIterateeCall(iteratees, orders, guard)) {
        orders = undefined;
      }
      if (!isArray(iteratees)) {
        iteratees = iteratees == null ? [] : [iteratees];
      }
      if (!isArray(orders)) {
        orders = orders == null ? [] : [orders];
      }
      return baseSortByOrder(collection, iteratees, orders);
    }

    /**
     * Performs a deep comparison between each element in `collection` and the
     * source object, returning an array of all elements that have equivalent
     * property values.
     *
     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
     * numbers, `Object` objects, regexes, and strings. Objects are compared by
     * their own, not inherited, enumerable properties. For comparing a single
     * own or inherited property value see `_.matchesProperty`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to search.
     * @param {Object} source The object of property values to match.
     * @returns {Array} Returns the new filtered array.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false, 'pets': ['hoppy'] },
     *   { 'user': 'fred',   'age': 40, 'active': true, 'pets': ['baby puss', 'dino'] }
     * ];
     *
     * _.pluck(_.where(users, { 'age': 36, 'active': false }), 'user');
     * // => ['barney']
     *
     * _.pluck(_.where(users, { 'pets': ['dino'] }), 'user');
     * // => ['fred']
     */
    function where(collection, source) {
      return filter(collection, baseMatches(source));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Gets the number of milliseconds that have elapsed since the Unix epoch
     * (1 January 1970 00:00:00 UTC).
     *
     * @static
     * @memberOf _
     * @category Date
     * @example
     *
     * _.defer(function(stamp) {
     *   console.log(_.now() - stamp);
     * }, _.now());
     * // => logs the number of milliseconds it took for the deferred function to be invoked
     */
    var now = nativeNow || function() {
      return new Date().getTime();
    };

    /*------------------------------------------------------------------------*/

    /**
     * The opposite of `_.before`; this method creates a function that invokes
     * `func` once it is called `n` or more times.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {number} n The number of calls before `func` is invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var saves = ['profile', 'settings'];
     *
     * var done = _.after(saves.length, function() {
     *   console.log('done saving!');
     * });
     *
     * _.forEach(saves, function(type) {
     *   asyncSave({ 'type': type, 'complete': done });
     * });
     * // => logs 'done saving!' after the two async saves have completed
     */
    function after(n, func) {
      if (typeof func != 'function') {
        if (typeof n == 'function') {
          var temp = n;
          n = func;
          func = temp;
        } else {
          throw new TypeError(FUNC_ERROR_TEXT);
        }
      }
      n = nativeIsFinite(n = +n) ? n : 0;
      return function() {
        if (--n < 1) {
          return func.apply(this, arguments);
        }
      };
    }

    /**
     * Creates a function that accepts up to `n` arguments ignoring any
     * additional arguments.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to cap arguments for.
     * @param {number} [n=func.length] The arity cap.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Function} Returns the new function.
     * @example
     *
     * _.map(['6', '8', '10'], _.ary(parseInt, 1));
     * // => [6, 8, 10]
     */
    function ary(func, n, guard) {
      if (guard && isIterateeCall(func, n, guard)) {
        n = undefined;
      }
      n = (func && n == null) ? func.length : nativeMax(+n || 0, 0);
      return createWrapper(func, ARY_FLAG, undefined, undefined, undefined, undefined, n);
    }

    /**
     * Creates a function that invokes `func`, with the `this` binding and arguments
     * of the created function, while it is called less than `n` times. Subsequent
     * calls to the created function return the result of the last `func` invocation.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {number} n The number of calls at which `func` is no longer invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * jQuery('#add').on('click', _.before(5, addContactToList));
     * // => allows adding up to 4 contacts to the list
     */
    function before(n, func) {
      var result;
      if (typeof func != 'function') {
        if (typeof n == 'function') {
          var temp = n;
          n = func;
          func = temp;
        } else {
          throw new TypeError(FUNC_ERROR_TEXT);
        }
      }
      return function() {
        if (--n > 0) {
          result = func.apply(this, arguments);
        }
        if (n <= 1) {
          func = undefined;
        }
        return result;
      };
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of `thisArg`
     * and prepends any additional `_.bind` arguments to those provided to the
     * bound function.
     *
     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for partially applied arguments.
     *
     * **Note:** Unlike native `Function#bind` this method does not set the "length"
     * property of bound functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to bind.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * var greet = function(greeting, punctuation) {
     *   return greeting + ' ' + this.user + punctuation;
     * };
     *
     * var object = { 'user': 'fred' };
     *
     * var bound = _.bind(greet, object, 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * // using placeholders
     * var bound = _.bind(greet, object, _, '!');
     * bound('hi');
     * // => 'hi fred!'
     */
    var bind = restParam(function(func, thisArg, partials) {
      var bitmask = BIND_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, bind.placeholder);
        bitmask |= PARTIAL_FLAG;
      }
      return createWrapper(func, bitmask, thisArg, partials, holders);
    });

    /**
     * Binds methods of an object to the object itself, overwriting the existing
     * method. Method names may be specified as individual arguments or as arrays
     * of method names. If no method names are provided all enumerable function
     * properties, own and inherited, of `object` are bound.
     *
     * **Note:** This method does not set the "length" property of bound functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Object} object The object to bind and assign the bound methods to.
     * @param {...(string|string[])} [methodNames] The object method names to bind,
     *  specified as individual method names or arrays of method names.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var view = {
     *   'label': 'docs',
     *   'onClick': function() {
     *     console.log('clicked ' + this.label);
     *   }
     * };
     *
     * _.bindAll(view);
     * jQuery('#docs').on('click', view.onClick);
     * // => logs 'clicked docs' when the element is clicked
     */
    var bindAll = restParam(function(object, methodNames) {
      methodNames = methodNames.length ? baseFlatten(methodNames) : functions(object);

      var index = -1,
          length = methodNames.length;

      while (++index < length) {
        var key = methodNames[index];
        object[key] = createWrapper(object[key], BIND_FLAG, object);
      }
      return object;
    });

    /**
     * Creates a function that invokes the method at `object[key]` and prepends
     * any additional `_.bindKey` arguments to those provided to the bound function.
     *
     * This method differs from `_.bind` by allowing bound functions to reference
     * methods that may be redefined or don't yet exist.
     * See [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
     * for more details.
     *
     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Object} object The object the method belongs to.
     * @param {string} key The key of the method.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * var object = {
     *   'user': 'fred',
     *   'greet': function(greeting, punctuation) {
     *     return greeting + ' ' + this.user + punctuation;
     *   }
     * };
     *
     * var bound = _.bindKey(object, 'greet', 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * object.greet = function(greeting, punctuation) {
     *   return greeting + 'ya ' + this.user + punctuation;
     * };
     *
     * bound('!');
     * // => 'hiya fred!'
     *
     * // using placeholders
     * var bound = _.bindKey(object, 'greet', _, '!');
     * bound('hi');
     * // => 'hiya fred!'
     */
    var bindKey = restParam(function(object, key, partials) {
      var bitmask = BIND_FLAG | BIND_KEY_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, bindKey.placeholder);
        bitmask |= PARTIAL_FLAG;
      }
      return createWrapper(key, bitmask, object, partials, holders);
    });

    /**
     * Creates a function that accepts one or more arguments of `func` that when
     * called either invokes `func` returning its result, if all `func` arguments
     * have been provided, or returns a function that accepts one or more of the
     * remaining `func` arguments, and so on. The arity of `func` may be specified
     * if `func.length` is not sufficient.
     *
     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for provided arguments.
     *
     * **Note:** This method does not set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curry(abc);
     *
     * curried(1)(2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // using placeholders
     * curried(1)(_, 3)(2);
     * // => [1, 2, 3]
     */
    var curry = createCurry(CURRY_FLAG);

    /**
     * This method is like `_.curry` except that arguments are applied to `func`
     * in the manner of `_.partialRight` instead of `_.partial`.
     *
     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for provided arguments.
     *
     * **Note:** This method does not set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curryRight(abc);
     *
     * curried(3)(2)(1);
     * // => [1, 2, 3]
     *
     * curried(2, 3)(1);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // using placeholders
     * curried(3)(1, _)(2);
     * // => [1, 2, 3]
     */
    var curryRight = createCurry(CURRY_RIGHT_FLAG);

    /**
     * Creates a debounced function that delays invoking `func` until after `wait`
     * milliseconds have elapsed since the last time the debounced function was
     * invoked. The debounced function comes with a `cancel` method to cancel
     * delayed invocations. Provide an options object to indicate that `func`
     * should be invoked on the leading and/or trailing edge of the `wait` timeout.
     * Subsequent calls to the debounced function return the result of the last
     * `func` invocation.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
     * on the trailing edge of the timeout only if the the debounced function is
     * invoked more than once during the `wait` timeout.
     *
     * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
     * for details over the differences between `_.debounce` and `_.throttle`.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to debounce.
     * @param {number} [wait=0] The number of milliseconds to delay.
     * @param {Object} [options] The options object.
     * @param {boolean} [options.leading=false] Specify invoking on the leading
     *  edge of the timeout.
     * @param {number} [options.maxWait] The maximum time `func` is allowed to be
     *  delayed before it is invoked.
     * @param {boolean} [options.trailing=true] Specify invoking on the trailing
     *  edge of the timeout.
     * @returns {Function} Returns the new debounced function.
     * @example
     *
     * // avoid costly calculations while the window size is in flux
     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
     *
     * // invoke `sendMail` when the click event is fired, debouncing subsequent calls
     * jQuery('#postbox').on('click', _.debounce(sendMail, 300, {
     *   'leading': true,
     *   'trailing': false
     * }));
     *
     * // ensure `batchLog` is invoked once after 1 second of debounced calls
     * var source = new EventSource('/stream');
     * jQuery(source).on('message', _.debounce(batchLog, 250, {
     *   'maxWait': 1000
     * }));
     *
     * // cancel a debounced call
     * var todoChanges = _.debounce(batchLog, 1000);
     * Object.observe(models.todo, todoChanges);
     *
     * Object.observe(models, function(changes) {
     *   if (_.find(changes, { 'user': 'todo', 'type': 'delete'})) {
     *     todoChanges.cancel();
     *   }
     * }, ['delete']);
     *
     * // ...at some point `models.todo` is changed
     * models.todo.completed = true;
     *
     * // ...before 1 second has passed `models.todo` is deleted
     * // which cancels the debounced `todoChanges` call
     * delete models.todo;
     */
    function debounce(func, wait, options) {
      var args,
          maxTimeoutId,
          result,
          stamp,
          thisArg,
          timeoutId,
          trailingCall,
          lastCalled = 0,
          maxWait = false,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      wait = wait < 0 ? 0 : (+wait || 0);
      if (options === true) {
        var leading = true;
        trailing = false;
      } else if (isObject(options)) {
        leading = !!options.leading;
        maxWait = 'maxWait' in options && nativeMax(+options.maxWait || 0, wait);
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }

      function cancel() {
        if (timeoutId) {
          clearTimeout(timeoutId);
        }
        if (maxTimeoutId) {
          clearTimeout(maxTimeoutId);
        }
        lastCalled = 0;
        maxTimeoutId = timeoutId = trailingCall = undefined;
      }

      function complete(isCalled, id) {
        if (id) {
          clearTimeout(id);
        }
        maxTimeoutId = timeoutId = trailingCall = undefined;
        if (isCalled) {
          lastCalled = now();
          result = func.apply(thisArg, args);
          if (!timeoutId && !maxTimeoutId) {
            args = thisArg = undefined;
          }
        }
      }

      function delayed() {
        var remaining = wait - (now() - stamp);
        if (remaining <= 0 || remaining > wait) {
          complete(trailingCall, maxTimeoutId);
        } else {
          timeoutId = setTimeout(delayed, remaining);
        }
      }

      function maxDelayed() {
        complete(trailing, timeoutId);
      }

      function debounced() {
        args = arguments;
        stamp = now();
        thisArg = this;
        trailingCall = trailing && (timeoutId || !leading);

        if (maxWait === false) {
          var leadingCall = leading && !timeoutId;
        } else {
          if (!maxTimeoutId && !leading) {
            lastCalled = stamp;
          }
          var remaining = maxWait - (stamp - lastCalled),
              isCalled = remaining <= 0 || remaining > maxWait;

          if (isCalled) {
            if (maxTimeoutId) {
              maxTimeoutId = clearTimeout(maxTimeoutId);
            }
            lastCalled = stamp;
            result = func.apply(thisArg, args);
          }
          else if (!maxTimeoutId) {
            maxTimeoutId = setTimeout(maxDelayed, remaining);
          }
        }
        if (isCalled && timeoutId) {
          timeoutId = clearTimeout(timeoutId);
        }
        else if (!timeoutId && wait !== maxWait) {
          timeoutId = setTimeout(delayed, wait);
        }
        if (leadingCall) {
          isCalled = true;
          result = func.apply(thisArg, args);
        }
        if (isCalled && !timeoutId && !maxTimeoutId) {
          args = thisArg = undefined;
        }
        return result;
      }
      debounced.cancel = cancel;
      return debounced;
    }

    /**
     * Defers invoking the `func` until the current call stack has cleared. Any
     * additional arguments are provided to `func` when it is invoked.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to defer.
     * @param {...*} [args] The arguments to invoke the function with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.defer(function(text) {
     *   console.log(text);
     * }, 'deferred');
     * // logs 'deferred' after one or more milliseconds
     */
    var defer = restParam(function(func, args) {
      return baseDelay(func, 1, args);
    });

    /**
     * Invokes `func` after `wait` milliseconds. Any additional arguments are
     * provided to `func` when it is invoked.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {...*} [args] The arguments to invoke the function with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.delay(function(text) {
     *   console.log(text);
     * }, 1000, 'later');
     * // => logs 'later' after one second
     */
    var delay = restParam(function(func, wait, args) {
      return baseDelay(func, wait, args);
    });

    /**
     * Creates a function that returns the result of invoking the provided
     * functions with the `this` binding of the created function, where each
     * successive invocation is supplied the return value of the previous.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {...Function} [funcs] Functions to invoke.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flow(_.add, square);
     * addSquare(1, 2);
     * // => 9
     */
    var flow = createFlow();

    /**
     * This method is like `_.flow` except that it creates a function that
     * invokes the provided functions from right to left.
     *
     * @static
     * @memberOf _
     * @alias backflow, compose
     * @category Function
     * @param {...Function} [funcs] Functions to invoke.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flowRight(square, _.add);
     * addSquare(1, 2);
     * // => 9
     */
    var flowRight = createFlow(true);

    /**
     * Creates a function that memoizes the result of `func`. If `resolver` is
     * provided it determines the cache key for storing the result based on the
     * arguments provided to the memoized function. By default, the first argument
     * provided to the memoized function is coerced to a string and used as the
     * cache key. The `func` is invoked with the `this` binding of the memoized
     * function.
     *
     * **Note:** The cache is exposed as the `cache` property on the memoized
     * function. Its creation may be customized by replacing the `_.memoize.Cache`
     * constructor with one whose instances implement the [`Map`](http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-map-prototype-object)
     * method interface of `get`, `has`, and `set`.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to have its output memoized.
     * @param {Function} [resolver] The function to resolve the cache key.
     * @returns {Function} Returns the new memoizing function.
     * @example
     *
     * var upperCase = _.memoize(function(string) {
     *   return string.toUpperCase();
     * });
     *
     * upperCase('fred');
     * // => 'FRED'
     *
     * // modifying the result cache
     * upperCase.cache.set('fred', 'BARNEY');
     * upperCase('fred');
     * // => 'BARNEY'
     *
     * // replacing `_.memoize.Cache`
     * var object = { 'user': 'fred' };
     * var other = { 'user': 'barney' };
     * var identity = _.memoize(_.identity);
     *
     * identity(object);
     * // => { 'user': 'fred' }
     * identity(other);
     * // => { 'user': 'fred' }
     *
     * _.memoize.Cache = WeakMap;
     * var identity = _.memoize(_.identity);
     *
     * identity(object);
     * // => { 'user': 'fred' }
     * identity(other);
     * // => { 'user': 'barney' }
     */
    function memoize(func, resolver) {
      if (typeof func != 'function' || (resolver && typeof resolver != 'function')) {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var memoized = function() {
        var args = arguments,
            key = resolver ? resolver.apply(this, args) : args[0],
            cache = memoized.cache;

        if (cache.has(key)) {
          return cache.get(key);
        }
        var result = func.apply(this, args);
        memoized.cache = cache.set(key, result);
        return result;
      };
      memoized.cache = new memoize.Cache;
      return memoized;
    }

    /**
     * Creates a function that runs each argument through a corresponding
     * transform function.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to wrap.
     * @param {...(Function|Function[])} [transforms] The functions to transform
     * arguments, specified as individual functions or arrays of functions.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function doubled(n) {
     *   return n * 2;
     * }
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var modded = _.modArgs(function(x, y) {
     *   return [x, y];
     * }, square, doubled);
     *
     * modded(1, 2);
     * // => [1, 4]
     *
     * modded(5, 10);
     * // => [25, 20]
     */
    var modArgs = restParam(function(func, transforms) {
      transforms = baseFlatten(transforms);
      if (typeof func != 'function' || !arrayEvery(transforms, baseIsFunction)) {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var length = transforms.length;
      return restParam(function(args) {
        var index = nativeMin(args.length, length);
        while (index--) {
          args[index] = transforms[index](args[index]);
        }
        return func.apply(this, args);
      });
    });

    /**
     * Creates a function that negates the result of the predicate `func`. The
     * `func` predicate is invoked with the `this` binding and arguments of the
     * created function.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} predicate The predicate to negate.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function isEven(n) {
     *   return n % 2 == 0;
     * }
     *
     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
     * // => [1, 3, 5]
     */
    function negate(predicate) {
      if (typeof predicate != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return function() {
        return !predicate.apply(this, arguments);
      };
    }

    /**
     * Creates a function that is restricted to invoking `func` once. Repeat calls
     * to the function return the value of the first call. The `func` is invoked
     * with the `this` binding and arguments of the created function.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var initialize = _.once(createApplication);
     * initialize();
     * initialize();
     * // `initialize` invokes `createApplication` once
     */
    function once(func) {
      return before(2, func);
    }

    /**
     * Creates a function that invokes `func` with `partial` arguments prepended
     * to those provided to the new function. This method is like `_.bind` except
     * it does **not** alter the `this` binding.
     *
     * The `_.partial.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method does not set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * var greet = function(greeting, name) {
     *   return greeting + ' ' + name;
     * };
     *
     * var sayHelloTo = _.partial(greet, 'hello');
     * sayHelloTo('fred');
     * // => 'hello fred'
     *
     * // using placeholders
     * var greetFred = _.partial(greet, _, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     */
    var partial = createPartial(PARTIAL_FLAG);

    /**
     * This method is like `_.partial` except that partially applied arguments
     * are appended to those provided to the new function.
     *
     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method does not set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * var greet = function(greeting, name) {
     *   return greeting + ' ' + name;
     * };
     *
     * var greetFred = _.partialRight(greet, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     *
     * // using placeholders
     * var sayHelloTo = _.partialRight(greet, 'hello', _);
     * sayHelloTo('fred');
     * // => 'hello fred'
     */
    var partialRight = createPartial(PARTIAL_RIGHT_FLAG);

    /**
     * Creates a function that invokes `func` with arguments arranged according
     * to the specified indexes where the argument value at the first index is
     * provided as the first argument, the argument value at the second index is
     * provided as the second argument, and so on.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to rearrange arguments for.
     * @param {...(number|number[])} indexes The arranged argument indexes,
     *  specified as individual indexes or arrays of indexes.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var rearged = _.rearg(function(a, b, c) {
     *   return [a, b, c];
     * }, 2, 0, 1);
     *
     * rearged('b', 'c', 'a')
     * // => ['a', 'b', 'c']
     *
     * var map = _.rearg(_.map, [1, 0]);
     * map(function(n) {
     *   return n * 3;
     * }, [1, 2, 3]);
     * // => [3, 6, 9]
     */
    var rearg = restParam(function(func, indexes) {
      return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes));
    });

    /**
     * Creates a function that invokes `func` with the `this` binding of the
     * created function and arguments from `start` and beyond provided as an array.
     *
     * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters).
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.restParam(function(what, names) {
     *   return what + ' ' + _.initial(names).join(', ') +
     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
     * });
     *
     * say('hello', 'fred', 'barney', 'pebbles');
     * // => 'hello fred, barney, & pebbles'
     */
    function restParam(func, start) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0);
      return function() {
        var args = arguments,
            index = -1,
            length = nativeMax(args.length - start, 0),
            rest = Array(length);

        while (++index < length) {
          rest[index] = args[start + index];
        }
        switch (start) {
          case 0: return func.call(this, rest);
          case 1: return func.call(this, args[0], rest);
          case 2: return func.call(this, args[0], args[1], rest);
        }
        var otherArgs = Array(start + 1);
        index = -1;
        while (++index < start) {
          otherArgs[index] = args[index];
        }
        otherArgs[start] = rest;
        return func.apply(this, otherArgs);
      };
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of the created
     * function and an array of arguments much like [`Function#apply`](https://es5.github.io/#x15.3.4.3).
     *
     * **Note:** This method is based on the [spread operator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator).
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to spread arguments over.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.spread(function(who, what) {
     *   return who + ' says ' + what;
     * });
     *
     * say(['fred', 'hello']);
     * // => 'fred says hello'
     *
     * // with a Promise
     * var numbers = Promise.all([
     *   Promise.resolve(40),
     *   Promise.resolve(36)
     * ]);
     *
     * numbers.then(_.spread(function(x, y) {
     *   return x + y;
     * }));
     * // => a Promise of 76
     */
    function spread(func) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return function(array) {
        return func.apply(this, array);
      };
    }

    /**
     * Creates a throttled function that only invokes `func` at most once per
     * every `wait` milliseconds. The throttled function comes with a `cancel`
     * method to cancel delayed invocations. Provide an options object to indicate
     * that `func` should be invoked on the leading and/or trailing edge of the
     * `wait` timeout. Subsequent calls to the throttled function return the
     * result of the last `func` call.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
     * on the trailing edge of the timeout only if the the throttled function is
     * invoked more than once during the `wait` timeout.
     *
     * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
     * for details over the differences between `_.throttle` and `_.debounce`.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to throttle.
     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
     * @param {Object} [options] The options object.
     * @param {boolean} [options.leading=true] Specify invoking on the leading
     *  edge of the timeout.
     * @param {boolean} [options.trailing=true] Specify invoking on the trailing
     *  edge of the timeout.
     * @returns {Function} Returns the new throttled function.
     * @example
     *
     * // avoid excessively updating the position while scrolling
     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
     *
     * // invoke `renewToken` when the click event is fired, but not more than once every 5 minutes
     * jQuery('.interactive').on('click', _.throttle(renewToken, 300000, {
     *   'trailing': false
     * }));
     *
     * // cancel a trailing throttled call
     * jQuery(window).on('popstate', throttled.cancel);
     */
    function throttle(func, wait, options) {
      var leading = true,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      if (options === false) {
        leading = false;
      } else if (isObject(options)) {
        leading = 'leading' in options ? !!options.leading : leading;
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }
      return debounce(func, wait, { 'leading': leading, 'maxWait': +wait, 'trailing': trailing });
    }

    /**
     * Creates a function that provides `value` to the wrapper function as its
     * first argument. Any additional arguments provided to the function are
     * appended to those provided to the wrapper function. The wrapper is invoked
     * with the `this` binding of the created function.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {*} value The value to wrap.
     * @param {Function} wrapper The wrapper function.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var p = _.wrap(_.escape, function(func, text) {
     *   return '<p>' + func(text) + '</p>';
     * });
     *
     * p('fred, barney, & pebbles');
     * // => '<p>fred, barney, &amp; pebbles</p>'
     */
    function wrap(value, wrapper) {
      wrapper = wrapper == null ? identity : wrapper;
      return createWrapper(wrapper, PARTIAL_FLAG, undefined, [value], []);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates a clone of `value`. If `isDeep` is `true` nested objects are cloned,
     * otherwise they are assigned by reference. If `customizer` is provided it is
     * invoked to produce the cloned values. If `customizer` returns `undefined`
     * cloning is handled by the method instead. The `customizer` is bound to
     * `thisArg` and invoked with two argument; (value [, index|key, object]).
     *
     * **Note:** This method is loosely based on the
     * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm).
     * The enumerable properties of `arguments` objects and objects created by
     * constructors other than `Object` are cloned to plain `Object` objects. An
     * empty object is returned for uncloneable values such as functions, DOM nodes,
     * Maps, Sets, and WeakMaps.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @param {Function} [customizer] The function to customize cloning values.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {*} Returns the cloned value.
     * @example
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * var shallow = _.clone(users);
     * shallow[0] === users[0];
     * // => true
     *
     * var deep = _.clone(users, true);
     * deep[0] === users[0];
     * // => false
     *
     * // using a customizer callback
     * var el = _.clone(document.body, function(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(false);
     *   }
     * });
     *
     * el === document.body
     * // => false
     * el.nodeName
     * // => BODY
     * el.childNodes.length;
     * // => 0
     */
    function clone(value, isDeep, customizer, thisArg) {
      if (isDeep && typeof isDeep != 'boolean' && isIterateeCall(value, isDeep, customizer)) {
        isDeep = false;
      }
      else if (typeof isDeep == 'function') {
        thisArg = customizer;
        customizer = isDeep;
        isDeep = false;
      }
      return typeof customizer == 'function'
        ? baseClone(value, isDeep, bindCallback(customizer, thisArg, 1))
        : baseClone(value, isDeep);
    }

    /**
     * Creates a deep clone of `value`. If `customizer` is provided it is invoked
     * to produce the cloned values. If `customizer` returns `undefined` cloning
     * is handled by the method instead. The `customizer` is bound to `thisArg`
     * and invoked with two argument; (value [, index|key, object]).
     *
     * **Note:** This method is loosely based on the
     * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm).
     * The enumerable properties of `arguments` objects and objects created by
     * constructors other than `Object` are cloned to plain `Object` objects. An
     * empty object is returned for uncloneable values such as functions, DOM nodes,
     * Maps, Sets, and WeakMaps.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to deep clone.
     * @param {Function} [customizer] The function to customize cloning values.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {*} Returns the deep cloned value.
     * @example
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * var deep = _.cloneDeep(users);
     * deep[0] === users[0];
     * // => false
     *
     * // using a customizer callback
     * var el = _.cloneDeep(document.body, function(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(true);
     *   }
     * });
     *
     * el === document.body
     * // => false
     * el.nodeName
     * // => BODY
     * el.childNodes.length;
     * // => 20
     */
    function cloneDeep(value, customizer, thisArg) {
      return typeof customizer == 'function'
        ? baseClone(value, true, bindCallback(customizer, thisArg, 1))
        : baseClone(value, true);
    }

    /**
     * Checks if `value` is greater than `other`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than `other`, else `false`.
     * @example
     *
     * _.gt(3, 1);
     * // => true
     *
     * _.gt(3, 3);
     * // => false
     *
     * _.gt(1, 3);
     * // => false
     */
    function gt(value, other) {
      return value > other;
    }

    /**
     * Checks if `value` is greater than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than or equal to `other`, else `false`.
     * @example
     *
     * _.gte(3, 1);
     * // => true
     *
     * _.gte(3, 3);
     * // => true
     *
     * _.gte(1, 3);
     * // => false
     */
    function gte(value, other) {
      return value >= other;
    }

    /**
     * Checks if `value` is classified as an `arguments` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isArguments(function() { return arguments; }());
     * // => true
     *
     * _.isArguments([1, 2, 3]);
     * // => false
     */
    function isArguments(value) {
      return isObjectLike(value) && isArrayLike(value) &&
        hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');
    }

    /**
     * Checks if `value` is classified as an `Array` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isArray([1, 2, 3]);
     * // => true
     *
     * _.isArray(function() { return arguments; }());
     * // => false
     */
    var isArray = nativeIsArray || function(value) {
      return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;
    };

    /**
     * Checks if `value` is classified as a boolean primitive or object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isBoolean(false);
     * // => true
     *
     * _.isBoolean(null);
     * // => false
     */
    function isBoolean(value) {
      return value === true || value === false || (isObjectLike(value) && objToString.call(value) == boolTag);
    }

    /**
     * Checks if `value` is classified as a `Date` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isDate(new Date);
     * // => true
     *
     * _.isDate('Mon April 23 2012');
     * // => false
     */
    function isDate(value) {
      return isObjectLike(value) && objToString.call(value) == dateTag;
    }

    /**
     * Checks if `value` is a DOM element.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
     * @example
     *
     * _.isElement(document.body);
     * // => true
     *
     * _.isElement('<body>');
     * // => false
     */
    function isElement(value) {
      return !!value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value);
    }

    /**
     * Checks if `value` is empty. A value is considered empty unless it is an
     * `arguments` object, array, string, or jQuery-like collection with a length
     * greater than `0` or an object with own enumerable properties.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {Array|Object|string} value The value to inspect.
     * @returns {boolean} Returns `true` if `value` is empty, else `false`.
     * @example
     *
     * _.isEmpty(null);
     * // => true
     *
     * _.isEmpty(true);
     * // => true
     *
     * _.isEmpty(1);
     * // => true
     *
     * _.isEmpty([1, 2, 3]);
     * // => false
     *
     * _.isEmpty({ 'a': 1 });
     * // => false
     */
    function isEmpty(value) {
      if (value == null) {
        return true;
      }
      if (isArrayLike(value) && (isArray(value) || isString(value) || isArguments(value) ||
          (isObjectLike(value) && isFunction(value.splice)))) {
        return !value.length;
      }
      return !keys(value).length;
    }

    /**
     * Performs a deep comparison between two values to determine if they are
     * equivalent. If `customizer` is provided it is invoked to compare values.
     * If `customizer` returns `undefined` comparisons are handled by the method
     * instead. The `customizer` is bound to `thisArg` and invoked with three
     * arguments: (value, other [, index|key]).
     *
     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
     * numbers, `Object` objects, regexes, and strings. Objects are compared by
     * their own, not inherited, enumerable properties. Functions and DOM nodes
     * are **not** supported. Provide a customizer function to extend support
     * for comparing other values.
     *
     * @static
     * @memberOf _
     * @alias eq
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {Function} [customizer] The function to customize value comparisons.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * var object = { 'user': 'fred' };
     * var other = { 'user': 'fred' };
     *
     * object == other;
     * // => false
     *
     * _.isEqual(object, other);
     * // => true
     *
     * // using a customizer callback
     * var array = ['hello', 'goodbye'];
     * var other = ['hi', 'goodbye'];
     *
     * _.isEqual(array, other, function(value, other) {
     *   if (_.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/)) {
     *     return true;
     *   }
     * });
     * // => true
     */
    function isEqual(value, other, customizer, thisArg) {
      customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
      var result = customizer ? customizer(value, other) : undefined;
      return  result === undefined ? baseIsEqual(value, other, customizer) : !!result;
    }

    /**
     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
     * `SyntaxError`, `TypeError`, or `URIError` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
     * @example
     *
     * _.isError(new Error);
     * // => true
     *
     * _.isError(Error);
     * // => false
     */
    function isError(value) {
      return isObjectLike(value) && typeof value.message == 'string' && objToString.call(value) == errorTag;
    }

    /**
     * Checks if `value` is a finite primitive number.
     *
     * **Note:** This method is based on [`Number.isFinite`](http://ecma-international.org/ecma-262/6.0/#sec-number.isfinite).
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
     * @example
     *
     * _.isFinite(10);
     * // => true
     *
     * _.isFinite('10');
     * // => false
     *
     * _.isFinite(true);
     * // => false
     *
     * _.isFinite(Object(10));
     * // => false
     *
     * _.isFinite(Infinity);
     * // => false
     */
    function isFinite(value) {
      return typeof value == 'number' && nativeIsFinite(value);
    }

    /**
     * Checks if `value` is classified as a `Function` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isFunction(_);
     * // => true
     *
     * _.isFunction(/abc/);
     * // => false
     */
    function isFunction(value) {
      // The use of `Object#toString` avoids issues with the `typeof` operator
      // in older versions of Chrome and Safari which return 'function' for regexes
      // and Safari 8 equivalents which return 'object' for typed array constructors.
      return isObject(value) && objToString.call(value) == funcTag;
    }

    /**
     * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
     * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an object, else `false`.
     * @example
     *
     * _.isObject({});
     * // => true
     *
     * _.isObject([1, 2, 3]);
     * // => true
     *
     * _.isObject(1);
     * // => false
     */
    function isObject(value) {
      // Avoid a V8 JIT bug in Chrome 19-20.
      // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
      var type = typeof value;
      return !!value && (type == 'object' || type == 'function');
    }

    /**
     * Performs a deep comparison between `object` and `source` to determine if
     * `object` contains equivalent property values. If `customizer` is provided
     * it is invoked to compare values. If `customizer` returns `undefined`
     * comparisons are handled by the method instead. The `customizer` is bound
     * to `thisArg` and invoked with three arguments: (value, other, index|key).
     *
     * **Note:** This method supports comparing properties of arrays, booleans,
     * `Date` objects, numbers, `Object` objects, regexes, and strings. Functions
     * and DOM nodes are **not** supported. Provide a customizer function to extend
     * support for comparing other values.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @param {Function} [customizer] The function to customize value comparisons.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     * @example
     *
     * var object = { 'user': 'fred', 'age': 40 };
     *
     * _.isMatch(object, { 'age': 40 });
     * // => true
     *
     * _.isMatch(object, { 'age': 36 });
     * // => false
     *
     * // using a customizer callback
     * var object = { 'greeting': 'hello' };
     * var source = { 'greeting': 'hi' };
     *
     * _.isMatch(object, source, function(value, other) {
     *   return _.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/) || undefined;
     * });
     * // => true
     */
    function isMatch(object, source, customizer, thisArg) {
      customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
      return baseIsMatch(object, getMatchData(source), customizer);
    }

    /**
     * Checks if `value` is `NaN`.
     *
     * **Note:** This method is not the same as [`isNaN`](https://es5.github.io/#x15.1.2.4)
     * which returns `true` for `undefined` and other non-numeric values.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
     * @example
     *
     * _.isNaN(NaN);
     * // => true
     *
     * _.isNaN(new Number(NaN));
     * // => true
     *
     * isNaN(undefined);
     * // => true
     *
     * _.isNaN(undefined);
     * // => false
     */
    function isNaN(value) {
      // An `NaN` primitive is the only value that is not equal to itself.
      // Perform the `toStringTag` check first to avoid errors with some host objects in IE.
      return isNumber(value) && value != +value;
    }

    /**
     * Checks if `value` is a native function.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
     * @example
     *
     * _.isNative(Array.prototype.push);
     * // => true
     *
     * _.isNative(_);
     * // => false
     */
    function isNative(value) {
      if (value == null) {
        return false;
      }
      if (isFunction(value)) {
        return reIsNative.test(fnToString.call(value));
      }
      return isObjectLike(value) && reIsHostCtor.test(value);
    }

    /**
     * Checks if `value` is `null`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
     * @example
     *
     * _.isNull(null);
     * // => true
     *
     * _.isNull(void 0);
     * // => false
     */
    function isNull(value) {
      return value === null;
    }

    /**
     * Checks if `value` is classified as a `Number` primitive or object.
     *
     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are classified
     * as numbers, use the `_.isFinite` method.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isNumber(8.4);
     * // => true
     *
     * _.isNumber(NaN);
     * // => true
     *
     * _.isNumber('8.4');
     * // => false
     */
    function isNumber(value) {
      return typeof value == 'number' || (isObjectLike(value) && objToString.call(value) == numberTag);
    }

    /**
     * Checks if `value` is a plain object, that is, an object created by the
     * `Object` constructor or one with a `[[Prototype]]` of `null`.
     *
     * **Note:** This method assumes objects created by the `Object` constructor
     * have no inherited enumerable properties.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * _.isPlainObject(new Foo);
     * // => false
     *
     * _.isPlainObject([1, 2, 3]);
     * // => false
     *
     * _.isPlainObject({ 'x': 0, 'y': 0 });
     * // => true
     *
     * _.isPlainObject(Object.create(null));
     * // => true
     */
    function isPlainObject(value) {
      var Ctor;

      // Exit early for non `Object` objects.
      if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||
          (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {
        return false;
      }
      // IE < 9 iterates inherited properties before own properties. If the first
      // iterated property is an object's own property then there are no inherited
      // enumerable properties.
      var result;
      // In most environments an object's own properties are iterated before
      // its inherited properties. If the last iterated property is an object's
      // own property then there are no inherited enumerable properties.
      baseForIn(value, function(subValue, key) {
        result = key;
      });
      return result === undefined || hasOwnProperty.call(value, result);
    }

    /**
     * Checks if `value` is classified as a `RegExp` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isRegExp(/abc/);
     * // => true
     *
     * _.isRegExp('/abc/');
     * // => false
     */
    function isRegExp(value) {
      return isObject(value) && objToString.call(value) == regexpTag;
    }

    /**
     * Checks if `value` is classified as a `String` primitive or object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isString('abc');
     * // => true
     *
     * _.isString(1);
     * // => false
     */
    function isString(value) {
      return typeof value == 'string' || (isObjectLike(value) && objToString.call(value) == stringTag);
    }

    /**
     * Checks if `value` is classified as a typed array.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isTypedArray(new Uint8Array);
     * // => true
     *
     * _.isTypedArray([]);
     * // => false
     */
    function isTypedArray(value) {
      return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];
    }

    /**
     * Checks if `value` is `undefined`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
     * @example
     *
     * _.isUndefined(void 0);
     * // => true
     *
     * _.isUndefined(null);
     * // => false
     */
    function isUndefined(value) {
      return value === undefined;
    }

    /**
     * Checks if `value` is less than `other`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than `other`, else `false`.
     * @example
     *
     * _.lt(1, 3);
     * // => true
     *
     * _.lt(3, 3);
     * // => false
     *
     * _.lt(3, 1);
     * // => false
     */
    function lt(value, other) {
      return value < other;
    }

    /**
     * Checks if `value` is less than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than or equal to `other`, else `false`.
     * @example
     *
     * _.lte(1, 3);
     * // => true
     *
     * _.lte(3, 3);
     * // => true
     *
     * _.lte(3, 1);
     * // => false
     */
    function lte(value, other) {
      return value <= other;
    }

    /**
     * Converts `value` to an array.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Array} Returns the converted array.
     * @example
     *
     * (function() {
     *   return _.toArray(arguments).slice(1);
     * }(1, 2, 3));
     * // => [2, 3]
     */
    function toArray(value) {
      var length = value ? getLength(value) : 0;
      if (!isLength(length)) {
        return values(value);
      }
      if (!length) {
        return [];
      }
      return arrayCopy(value);
    }

    /**
     * Converts `value` to a plain object flattening inherited enumerable
     * properties of `value` to own properties of the plain object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Object} Returns the converted plain object.
     * @example
     *
     * function Foo() {
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.assign({ 'a': 1 }, new Foo);
     * // => { 'a': 1, 'b': 2 }
     *
     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
     * // => { 'a': 1, 'b': 2, 'c': 3 }
     */
    function toPlainObject(value) {
      return baseCopy(value, keysIn(value));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Recursively merges own enumerable properties of the source object(s), that
     * don't resolve to `undefined` into the destination object. Subsequent sources
     * overwrite property assignments of previous sources. If `customizer` is
     * provided it is invoked to produce the merged values of the destination and
     * source properties. If `customizer` returns `undefined` merging is handled
     * by the method instead. The `customizer` is bound to `thisArg` and invoked
     * with five arguments: (objectValue, sourceValue, key, object, source).
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var users = {
     *   'data': [{ 'user': 'barney' }, { 'user': 'fred' }]
     * };
     *
     * var ages = {
     *   'data': [{ 'age': 36 }, { 'age': 40 }]
     * };
     *
     * _.merge(users, ages);
     * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }
     *
     * // using a customizer callback
     * var object = {
     *   'fruits': ['apple'],
     *   'vegetables': ['beet']
     * };
     *
     * var other = {
     *   'fruits': ['banana'],
     *   'vegetables': ['carrot']
     * };
     *
     * _.merge(object, other, function(a, b) {
     *   if (_.isArray(a)) {
     *     return a.concat(b);
     *   }
     * });
     * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }
     */
    var merge = createAssigner(baseMerge);

    /**
     * Assigns own enumerable properties of source object(s) to the destination
     * object. Subsequent sources overwrite property assignments of previous sources.
     * If `customizer` is provided it is invoked to produce the assigned values.
     * The `customizer` is bound to `thisArg` and invoked with five arguments:
     * (objectValue, sourceValue, key, object, source).
     *
     * **Note:** This method mutates `object` and is based on
     * [`Object.assign`](http://ecma-international.org/ecma-262/6.0/#sec-object.assign).
     *
     * @static
     * @memberOf _
     * @alias extend
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * _.assign({ 'user': 'barney' }, { 'age': 40 }, { 'user': 'fred' });
     * // => { 'user': 'fred', 'age': 40 }
     *
     * // using a customizer callback
     * var defaults = _.partialRight(_.assign, function(value, other) {
     *   return _.isUndefined(value) ? other : value;
     * });
     *
     * defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
     * // => { 'user': 'barney', 'age': 36 }
     */
    var assign = createAssigner(function(object, source, customizer) {
      return customizer
        ? assignWith(object, source, customizer)
        : baseAssign(object, source);
    });

    /**
     * Creates an object that inherits from the given `prototype` object. If a
     * `properties` object is provided its own enumerable properties are assigned
     * to the created object.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} prototype The object to inherit from.
     * @param {Object} [properties] The properties to assign to the object.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Object} Returns the new object.
     * @example
     *
     * function Shape() {
     *   this.x = 0;
     *   this.y = 0;
     * }
     *
     * function Circle() {
     *   Shape.call(this);
     * }
     *
     * Circle.prototype = _.create(Shape.prototype, {
     *   'constructor': Circle
     * });
     *
     * var circle = new Circle;
     * circle instanceof Circle;
     * // => true
     *
     * circle instanceof Shape;
     * // => true
     */
    function create(prototype, properties, guard) {
      var result = baseCreate(prototype);
      if (guard && isIterateeCall(prototype, properties, guard)) {
        properties = undefined;
      }
      return properties ? baseAssign(result, properties) : result;
    }

    /**
     * Assigns own enumerable properties of source object(s) to the destination
     * object for all destination properties that resolve to `undefined`. Once a
     * property is set, additional values of the same property are ignored.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @example
     *
     * _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
     * // => { 'user': 'barney', 'age': 36 }
     */
    var defaults = createDefaults(assign, assignDefaults);

    /**
     * This method is like `_.defaults` except that it recursively assigns
     * default properties.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @example
     *
     * _.defaultsDeep({ 'user': { 'name': 'barney' } }, { 'user': { 'name': 'fred', 'age': 36 } });
     * // => { 'user': { 'name': 'barney', 'age': 36 } }
     *
     */
    var defaultsDeep = createDefaults(merge, mergeDefaults);

    /**
     * This method is like `_.find` except that it returns the key of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {string|undefined} Returns the key of the matched element, else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findKey(users, function(chr) {
     *   return chr.age < 40;
     * });
     * // => 'barney' (iteration order is not guaranteed)
     *
     * // using the `_.matches` callback shorthand
     * _.findKey(users, { 'age': 1, 'active': true });
     * // => 'pebbles'
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.findKey(users, 'active', false);
     * // => 'fred'
     *
     * // using the `_.property` callback shorthand
     * _.findKey(users, 'active');
     * // => 'barney'
     */
    var findKey = createFindKey(baseForOwn);

    /**
     * This method is like `_.findKey` except that it iterates over elements of
     * a collection in the opposite order.
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {string|undefined} Returns the key of the matched element, else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findLastKey(users, function(chr) {
     *   return chr.age < 40;
     * });
     * // => returns `pebbles` assuming `_.findKey` returns `barney`
     *
     * // using the `_.matches` callback shorthand
     * _.findLastKey(users, { 'age': 36, 'active': true });
     * // => 'barney'
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.findLastKey(users, 'active', false);
     * // => 'fred'
     *
     * // using the `_.property` callback shorthand
     * _.findLastKey(users, 'active');
     * // => 'pebbles'
     */
    var findLastKey = createFindKey(baseForOwnRight);

    /**
     * Iterates over own and inherited enumerable properties of an object invoking
     * `iteratee` for each property. The `iteratee` is bound to `thisArg` and invoked
     * with three arguments: (value, key, object). Iteratee functions may exit
     * iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forIn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => logs 'a', 'b', and 'c' (iteration order is not guaranteed)
     */
    var forIn = createForIn(baseFor);

    /**
     * This method is like `_.forIn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forInRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => logs 'c', 'b', and 'a' assuming `_.forIn ` logs 'a', 'b', and 'c'
     */
    var forInRight = createForIn(baseForRight);

    /**
     * Iterates over own enumerable properties of an object invoking `iteratee`
     * for each property. The `iteratee` is bound to `thisArg` and invoked with
     * three arguments: (value, key, object). Iteratee functions may exit iteration
     * early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => logs 'a' and 'b' (iteration order is not guaranteed)
     */
    var forOwn = createForOwn(baseForOwn);

    /**
     * This method is like `_.forOwn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwnRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => logs 'b' and 'a' assuming `_.forOwn` logs 'a' and 'b'
     */
    var forOwnRight = createForOwn(baseForOwnRight);

    /**
     * Creates an array of function property names from all enumerable properties,
     * own and inherited, of `object`.
     *
     * @static
     * @memberOf _
     * @alias methods
     * @category Object
     * @param {Object} object The object to inspect.
     * @returns {Array} Returns the new array of property names.
     * @example
     *
     * _.functions(_);
     * // => ['after', 'ary', 'assign', ...]
     */
    function functions(object) {
      return baseFunctions(object, keysIn(object));
    }

    /**
     * Gets the property value at `path` of `object`. If the resolved value is
     * `undefined` the `defaultValue` is used in its place.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to get.
     * @param {*} [defaultValue] The value returned if the resolved value is `undefined`.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.get(object, 'a[0].b.c');
     * // => 3
     *
     * _.get(object, ['a', '0', 'b', 'c']);
     * // => 3
     *
     * _.get(object, 'a.b.c', 'default');
     * // => 'default'
     */
    function get(object, path, defaultValue) {
      var result = object == null ? undefined : baseGet(object, toPath(path), path + '');
      return result === undefined ? defaultValue : result;
    }

    /**
     * Checks if `path` is a direct property.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @returns {boolean} Returns `true` if `path` is a direct property, else `false`.
     * @example
     *
     * var object = { 'a': { 'b': { 'c': 3 } } };
     *
     * _.has(object, 'a');
     * // => true
     *
     * _.has(object, 'a.b.c');
     * // => true
     *
     * _.has(object, ['a', 'b', 'c']);
     * // => true
     */
    function has(object, path) {
      if (object == null) {
        return false;
      }
      var result = hasOwnProperty.call(object, path);
      if (!result && !isKey(path)) {
        path = toPath(path);
        object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
        if (object == null) {
          return false;
        }
        path = last(path);
        result = hasOwnProperty.call(object, path);
      }
      return result || (isLength(object.length) && isIndex(path, object.length) &&
        (isArray(object) || isArguments(object)));
    }

    /**
     * Creates an object composed of the inverted keys and values of `object`.
     * If `object` contains duplicate values, subsequent values overwrite property
     * assignments of previous values unless `multiValue` is `true`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to invert.
     * @param {boolean} [multiValue] Allow multiple values per key.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Object} Returns the new inverted object.
     * @example
     *
     * var object = { 'a': 1, 'b': 2, 'c': 1 };
     *
     * _.invert(object);
     * // => { '1': 'c', '2': 'b' }
     *
     * // with `multiValue`
     * _.invert(object, true);
     * // => { '1': ['a', 'c'], '2': ['b'] }
     */
    function invert(object, multiValue, guard) {
      if (guard && isIterateeCall(object, multiValue, guard)) {
        multiValue = undefined;
      }
      var index = -1,
          props = keys(object),
          length = props.length,
          result = {};

      while (++index < length) {
        var key = props[index],
            value = object[key];

        if (multiValue) {
          if (hasOwnProperty.call(result, value)) {
            result[value].push(key);
          } else {
            result[value] = [key];
          }
        }
        else {
          result[value] = key;
        }
      }
      return result;
    }

    /**
     * Creates an array of the own enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects. See the
     * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
     * for more details.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keys(new Foo);
     * // => ['a', 'b'] (iteration order is not guaranteed)
     *
     * _.keys('hi');
     * // => ['0', '1']
     */
    var keys = !nativeKeys ? shimKeys : function(object) {
      var Ctor = object == null ? undefined : object.constructor;
      if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
          (typeof object != 'function' && isArrayLike(object))) {
        return shimKeys(object);
      }
      return isObject(object) ? nativeKeys(object) : [];
    };

    /**
     * Creates an array of the own and inherited enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keysIn(new Foo);
     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
     */
    function keysIn(object) {
      if (object == null) {
        return [];
      }
      if (!isObject(object)) {
        object = Object(object);
      }
      var length = object.length;
      length = (length && isLength(length) &&
        (isArray(object) || isArguments(object)) && length) || 0;

      var Ctor = object.constructor,
          index = -1,
          isProto = typeof Ctor == 'function' && Ctor.prototype === object,
          result = Array(length),
          skipIndexes = length > 0;

      while (++index < length) {
        result[index] = (index + '');
      }
      for (var key in object) {
        if (!(skipIndexes && isIndex(key, length)) &&
            !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * The opposite of `_.mapValues`; this method creates an object with the
     * same values as `object` and keys generated by running each own enumerable
     * property of `object` through `iteratee`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns the new mapped object.
     * @example
     *
     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
     *   return key + value;
     * });
     * // => { 'a1': 1, 'b2': 2 }
     */
    var mapKeys = createObjectMapper(true);

    /**
     * Creates an object with the same keys as `object` and values generated by
     * running each own enumerable property of `object` through `iteratee`. The
     * iteratee function is bound to `thisArg` and invoked with three arguments:
     * (value, key, object).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns the new mapped object.
     * @example
     *
     * _.mapValues({ 'a': 1, 'b': 2 }, function(n) {
     *   return n * 3;
     * });
     * // => { 'a': 3, 'b': 6 }
     *
     * var users = {
     *   'fred':    { 'user': 'fred',    'age': 40 },
     *   'pebbles': { 'user': 'pebbles', 'age': 1 }
     * };
     *
     * // using the `_.property` callback shorthand
     * _.mapValues(users, 'age');
     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
     */
    var mapValues = createObjectMapper();

    /**
     * The opposite of `_.pick`; this method creates an object composed of the
     * own and inherited enumerable properties of `object` that are not omitted.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {Function|...(string|string[])} [predicate] The function invoked per
     *  iteration or property names to omit, specified as individual property
     *  names or arrays of property names.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'user': 'fred', 'age': 40 };
     *
     * _.omit(object, 'age');
     * // => { 'user': 'fred' }
     *
     * _.omit(object, _.isNumber);
     * // => { 'user': 'fred' }
     */
    var omit = restParam(function(object, props) {
      if (object == null) {
        return {};
      }
      if (typeof props[0] != 'function') {
        var props = arrayMap(baseFlatten(props), String);
        return pickByArray(object, baseDifference(keysIn(object), props));
      }
      var predicate = bindCallback(props[0], props[1], 3);
      return pickByCallback(object, function(value, key, object) {
        return !predicate(value, key, object);
      });
    });

    /**
     * Creates a two dimensional array of the key-value pairs for `object`,
     * e.g. `[[key1, value1], [key2, value2]]`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the new array of key-value pairs.
     * @example
     *
     * _.pairs({ 'barney': 36, 'fred': 40 });
     * // => [['barney', 36], ['fred', 40]] (iteration order is not guaranteed)
     */
    function pairs(object) {
      object = toObject(object);

      var index = -1,
          props = keys(object),
          length = props.length,
          result = Array(length);

      while (++index < length) {
        var key = props[index];
        result[index] = [key, object[key]];
      }
      return result;
    }

    /**
     * Creates an object composed of the picked `object` properties. Property
     * names may be specified as individual arguments or as arrays of property
     * names. If `predicate` is provided it is invoked for each property of `object`
     * picking the properties `predicate` returns truthy for. The predicate is
     * bound to `thisArg` and invoked with three arguments: (value, key, object).
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {Function|...(string|string[])} [predicate] The function invoked per
     *  iteration or property names to pick, specified as individual property
     *  names or arrays of property names.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'user': 'fred', 'age': 40 };
     *
     * _.pick(object, 'user');
     * // => { 'user': 'fred' }
     *
     * _.pick(object, _.isString);
     * // => { 'user': 'fred' }
     */
    var pick = restParam(function(object, props) {
      if (object == null) {
        return {};
      }
      return typeof props[0] == 'function'
        ? pickByCallback(object, bindCallback(props[0], props[1], 3))
        : pickByArray(object, baseFlatten(props));
    });

    /**
     * This method is like `_.get` except that if the resolved value is a function
     * it is invoked with the `this` binding of its parent object and its result
     * is returned.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to resolve.
     * @param {*} [defaultValue] The value returned if the resolved value is `undefined`.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
     *
     * _.result(object, 'a[0].b.c1');
     * // => 3
     *
     * _.result(object, 'a[0].b.c2');
     * // => 4
     *
     * _.result(object, 'a.b.c', 'default');
     * // => 'default'
     *
     * _.result(object, 'a.b.c', _.constant('default'));
     * // => 'default'
     */
    function result(object, path, defaultValue) {
      var result = object == null ? undefined : object[path];
      if (result === undefined) {
        if (object != null && !isKey(path, object)) {
          path = toPath(path);
          object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
          result = object == null ? undefined : object[last(path)];
        }
        result = result === undefined ? defaultValue : result;
      }
      return isFunction(result) ? result.call(object) : result;
    }

    /**
     * Sets the property value of `path` on `object`. If a portion of `path`
     * does not exist it is created.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to augment.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.set(object, 'a[0].b.c', 4);
     * console.log(object.a[0].b.c);
     * // => 4
     *
     * _.set(object, 'x[0].y.z', 5);
     * console.log(object.x[0].y.z);
     * // => 5
     */
    function set(object, path, value) {
      if (object == null) {
        return object;
      }
      var pathKey = (path + '');
      path = (object[pathKey] != null || isKey(path, object)) ? [pathKey] : toPath(path);

      var index = -1,
          length = path.length,
          lastIndex = length - 1,
          nested = object;

      while (nested != null && ++index < length) {
        var key = path[index];
        if (isObject(nested)) {
          if (index == lastIndex) {
            nested[key] = value;
          } else if (nested[key] == null) {
            nested[key] = isIndex(path[index + 1]) ? [] : {};
          }
        }
        nested = nested[key];
      }
      return object;
    }

    /**
     * An alternative to `_.reduce`; this method transforms `object` to a new
     * `accumulator` object which is the result of running each of its own enumerable
     * properties through `iteratee`, with each invocation potentially mutating
     * the `accumulator` object. The `iteratee` is bound to `thisArg` and invoked
     * with four arguments: (accumulator, value, key, object). Iteratee functions
     * may exit iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Array|Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The custom accumulator value.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {*} Returns the accumulated value.
     * @example
     *
     * _.transform([2, 3, 4], function(result, n) {
     *   result.push(n *= n);
     *   return n % 2 == 0;
     * });
     * // => [4, 9]
     *
     * _.transform({ 'a': 1, 'b': 2 }, function(result, n, key) {
     *   result[key] = n * 3;
     * });
     * // => { 'a': 3, 'b': 6 }
     */
    function transform(object, iteratee, accumulator, thisArg) {
      var isArr = isArray(object) || isTypedArray(object);
      iteratee = getCallback(iteratee, thisArg, 4);

      if (accumulator == null) {
        if (isArr || isObject(object)) {
          var Ctor = object.constructor;
          if (isArr) {
            accumulator = isArray(object) ? new Ctor : [];
          } else {
            accumulator = baseCreate(isFunction(Ctor) ? Ctor.prototype : undefined);
          }
        } else {
          accumulator = {};
        }
      }
      (isArr ? arrayEach : baseForOwn)(object, function(value, index, object) {
        return iteratee(accumulator, value, index, object);
      });
      return accumulator;
    }

    /**
     * Creates an array of the own enumerable property values of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.values(new Foo);
     * // => [1, 2] (iteration order is not guaranteed)
     *
     * _.values('hi');
     * // => ['h', 'i']
     */
    function values(object) {
      return baseValues(object, keys(object));
    }

    /**
     * Creates an array of the own and inherited enumerable property values
     * of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.valuesIn(new Foo);
     * // => [1, 2, 3] (iteration order is not guaranteed)
     */
    function valuesIn(object) {
      return baseValues(object, keysIn(object));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Checks if `n` is between `start` and up to but not including, `end`. If
     * `end` is not specified it is set to `start` with `start` then set to `0`.
     *
     * @static
     * @memberOf _
     * @category Number
     * @param {number} n The number to check.
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @returns {boolean} Returns `true` if `n` is in the range, else `false`.
     * @example
     *
     * _.inRange(3, 2, 4);
     * // => true
     *
     * _.inRange(4, 8);
     * // => true
     *
     * _.inRange(4, 2);
     * // => false
     *
     * _.inRange(2, 2);
     * // => false
     *
     * _.inRange(1.2, 2);
     * // => true
     *
     * _.inRange(5.2, 4);
     * // => false
     */
    function inRange(value, start, end) {
      start = +start || 0;
      if (end === undefined) {
        end = start;
        start = 0;
      } else {
        end = +end || 0;
      }
      return value >= nativeMin(start, end) && value < nativeMax(start, end);
    }

    /**
     * Produces a random number between `min` and `max` (inclusive). If only one
     * argument is provided a number between `0` and the given number is returned.
     * If `floating` is `true`, or either `min` or `max` are floats, a floating-point
     * number is returned instead of an integer.
     *
     * @static
     * @memberOf _
     * @category Number
     * @param {number} [min=0] The minimum possible value.
     * @param {number} [max=1] The maximum possible value.
     * @param {boolean} [floating] Specify returning a floating-point number.
     * @returns {number} Returns the random number.
     * @example
     *
     * _.random(0, 5);
     * // => an integer between 0 and 5
     *
     * _.random(5);
     * // => also an integer between 0 and 5
     *
     * _.random(5, true);
     * // => a floating-point number between 0 and 5
     *
     * _.random(1.2, 5.2);
     * // => a floating-point number between 1.2 and 5.2
     */
    function random(min, max, floating) {
      if (floating && isIterateeCall(min, max, floating)) {
        max = floating = undefined;
      }
      var noMin = min == null,
          noMax = max == null;

      if (floating == null) {
        if (noMax && typeof min == 'boolean') {
          floating = min;
          min = 1;
        }
        else if (typeof max == 'boolean') {
          floating = max;
          noMax = true;
        }
      }
      if (noMin && noMax) {
        max = 1;
        noMax = false;
      }
      min = +min || 0;
      if (noMax) {
        max = min;
        min = 0;
      } else {
        max = +max || 0;
      }
      if (floating || min % 1 || max % 1) {
        var rand = nativeRandom();
        return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand + '').length - 1)))), max);
      }
      return baseRandom(min, max);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the camel cased string.
     * @example
     *
     * _.camelCase('Foo Bar');
     * // => 'fooBar'
     *
     * _.camelCase('--foo-bar');
     * // => 'fooBar'
     *
     * _.camelCase('__foo_bar__');
     * // => 'fooBar'
     */
    var camelCase = createCompounder(function(result, word, index) {
      word = word.toLowerCase();
      return result + (index ? (word.charAt(0).toUpperCase() + word.slice(1)) : word);
    });

    /**
     * Capitalizes the first character of `string`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to capitalize.
     * @returns {string} Returns the capitalized string.
     * @example
     *
     * _.capitalize('fred');
     * // => 'Fred'
     */
    function capitalize(string) {
      string = baseToString(string);
      return string && (string.charAt(0).toUpperCase() + string.slice(1));
    }

    /**
     * Deburrs `string` by converting [latin-1 supplementary letters](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
     * to basic latin letters and removing [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to deburr.
     * @returns {string} Returns the deburred string.
     * @example
     *
     * _.deburr('déjà vu');
     * // => 'deja vu'
     */
    function deburr(string) {
      string = baseToString(string);
      return string && string.replace(reLatin1, deburrLetter).replace(reComboMark, '');
    }

    /**
     * Checks if `string` ends with the given target string.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to search.
     * @param {string} [target] The string to search for.
     * @param {number} [position=string.length] The position to search from.
     * @returns {boolean} Returns `true` if `string` ends with `target`, else `false`.
     * @example
     *
     * _.endsWith('abc', 'c');
     * // => true
     *
     * _.endsWith('abc', 'b');
     * // => false
     *
     * _.endsWith('abc', 'b', 2);
     * // => true
     */
    function endsWith(string, target, position) {
      string = baseToString(string);
      target = (target + '');

      var length = string.length;
      position = position === undefined
        ? length
        : nativeMin(position < 0 ? 0 : (+position || 0), length);

      position -= target.length;
      return position >= 0 && string.indexOf(target, position) == position;
    }

    /**
     * Converts the characters "&", "<", ">", '"', "'", and "\`", in `string` to
     * their corresponding HTML entities.
     *
     * **Note:** No other characters are escaped. To escape additional characters
     * use a third-party library like [_he_](https://mths.be/he).
     *
     * Though the ">" character is escaped for symmetry, characters like
     * ">" and "/" don't need escaping in HTML and have no special meaning
     * unless they're part of a tag or unquoted attribute value.
     * See [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
     * (under "semi-related fun fact") for more details.
     *
     * Backticks are escaped because in Internet Explorer < 9, they can break out
     * of attribute values or HTML comments. See [#59](https://html5sec.org/#59),
     * [#102](https://html5sec.org/#102), [#108](https://html5sec.org/#108), and
     * [#133](https://html5sec.org/#133) of the [HTML5 Security Cheatsheet](https://html5sec.org/)
     * for more details.
     *
     * When working with HTML you should always [quote attribute values](http://wonko.com/post/html-escaping)
     * to reduce XSS vectors.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escape('fred, barney, & pebbles');
     * // => 'fred, barney, &amp; pebbles'
     */
    function escape(string) {
      // Reset `lastIndex` because in IE < 9 `String#replace` does not.
      string = baseToString(string);
      return (string && reHasUnescapedHtml.test(string))
        ? string.replace(reUnescapedHtml, escapeHtmlChar)
        : string;
    }

    /**
     * Escapes the `RegExp` special characters "\", "/", "^", "$", ".", "|", "?",
     * "*", "+", "(", ")", "[", "]", "{" and "}" in `string`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escapeRegExp('[lodash](https://lodash.com/)');
     * // => '\[lodash\]\(https:\/\/lodash\.com\/\)'
     */
    function escapeRegExp(string) {
      string = baseToString(string);
      return (string && reHasRegExpChars.test(string))
        ? string.replace(reRegExpChars, escapeRegExpChar)
        : (string || '(?:)');
    }

    /**
     * Converts `string` to [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the kebab cased string.
     * @example
     *
     * _.kebabCase('Foo Bar');
     * // => 'foo-bar'
     *
     * _.kebabCase('fooBar');
     * // => 'foo-bar'
     *
     * _.kebabCase('__foo_bar__');
     * // => 'foo-bar'
     */
    var kebabCase = createCompounder(function(result, word, index) {
      return result + (index ? '-' : '') + word.toLowerCase();
    });

    /**
     * Pads `string` on the left and right sides if it's shorter than `length`.
     * Padding characters are truncated if they can't be evenly divided by `length`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.pad('abc', 8);
     * // => '  abc   '
     *
     * _.pad('abc', 8, '_-');
     * // => '_-abc_-_'
     *
     * _.pad('abc', 3);
     * // => 'abc'
     */
    function pad(string, length, chars) {
      string = baseToString(string);
      length = +length;

      var strLength = string.length;
      if (strLength >= length || !nativeIsFinite(length)) {
        return string;
      }
      var mid = (length - strLength) / 2,
          leftLength = nativeFloor(mid),
          rightLength = nativeCeil(mid);

      chars = createPadding('', rightLength, chars);
      return chars.slice(0, leftLength) + string + chars;
    }

    /**
     * Pads `string` on the left side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padLeft('abc', 6);
     * // => '   abc'
     *
     * _.padLeft('abc', 6, '_-');
     * // => '_-_abc'
     *
     * _.padLeft('abc', 3);
     * // => 'abc'
     */
    var padLeft = createPadDir();

    /**
     * Pads `string` on the right side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padRight('abc', 6);
     * // => 'abc   '
     *
     * _.padRight('abc', 6, '_-');
     * // => 'abc_-_'
     *
     * _.padRight('abc', 3);
     * // => 'abc'
     */
    var padRight = createPadDir(true);

    /**
     * Converts `string` to an integer of the specified radix. If `radix` is
     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a hexadecimal,
     * in which case a `radix` of `16` is used.
     *
     * **Note:** This method aligns with the [ES5 implementation](https://es5.github.io/#E)
     * of `parseInt`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} string The string to convert.
     * @param {number} [radix] The radix to interpret `value` by.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.parseInt('08');
     * // => 8
     *
     * _.map(['6', '08', '10'], _.parseInt);
     * // => [6, 8, 10]
     */
    function parseInt(string, radix, guard) {
      // Firefox < 21 and Opera < 15 follow ES3 for `parseInt`.
      // Chrome fails to trim leading <BOM> whitespace characters.
      // See https://code.google.com/p/v8/issues/detail?id=3109 for more details.
      if (guard ? isIterateeCall(string, radix, guard) : radix == null) {
        radix = 0;
      } else if (radix) {
        radix = +radix;
      }
      string = trim(string);
      return nativeParseInt(string, radix || (reHasHexPrefix.test(string) ? 16 : 10));
    }

    /**
     * Repeats the given string `n` times.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to repeat.
     * @param {number} [n=0] The number of times to repeat the string.
     * @returns {string} Returns the repeated string.
     * @example
     *
     * _.repeat('*', 3);
     * // => '***'
     *
     * _.repeat('abc', 2);
     * // => 'abcabc'
     *
     * _.repeat('abc', 0);
     * // => ''
     */
    function repeat(string, n) {
      var result = '';
      string = baseToString(string);
      n = +n;
      if (n < 1 || !string || !nativeIsFinite(n)) {
        return result;
      }
      // Leverage the exponentiation by squaring algorithm for a faster repeat.
      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
      do {
        if (n % 2) {
          result += string;
        }
        n = nativeFloor(n / 2);
        string += string;
      } while (n);

      return result;
    }

    /**
     * Converts `string` to [snake case](https://en.wikipedia.org/wiki/Snake_case).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the snake cased string.
     * @example
     *
     * _.snakeCase('Foo Bar');
     * // => 'foo_bar'
     *
     * _.snakeCase('fooBar');
     * // => 'foo_bar'
     *
     * _.snakeCase('--foo-bar');
     * // => 'foo_bar'
     */
    var snakeCase = createCompounder(function(result, word, index) {
      return result + (index ? '_' : '') + word.toLowerCase();
    });

    /**
     * Converts `string` to [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the start cased string.
     * @example
     *
     * _.startCase('--foo-bar');
     * // => 'Foo Bar'
     *
     * _.startCase('fooBar');
     * // => 'Foo Bar'
     *
     * _.startCase('__foo_bar__');
     * // => 'Foo Bar'
     */
    var startCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + (word.charAt(0).toUpperCase() + word.slice(1));
    });

    /**
     * Checks if `string` starts with the given target string.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to search.
     * @param {string} [target] The string to search for.
     * @param {number} [position=0] The position to search from.
     * @returns {boolean} Returns `true` if `string` starts with `target`, else `false`.
     * @example
     *
     * _.startsWith('abc', 'a');
     * // => true
     *
     * _.startsWith('abc', 'b');
     * // => false
     *
     * _.startsWith('abc', 'b', 1);
     * // => true
     */
    function startsWith(string, target, position) {
      string = baseToString(string);
      position = position == null
        ? 0
        : nativeMin(position < 0 ? 0 : (+position || 0), string.length);

      return string.lastIndexOf(target, position) == position;
    }

    /**
     * Creates a compiled template function that can interpolate data properties
     * in "interpolate" delimiters, HTML-escape interpolated data properties in
     * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
     * properties may be accessed as free variables in the template. If a setting
     * object is provided it takes precedence over `_.templateSettings` values.
     *
     * **Note:** In the development build `_.template` utilizes
     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
     * for easier debugging.
     *
     * For more information on precompiling templates see
     * [lodash's custom builds documentation](https://lodash.com/custom-builds).
     *
     * For more information on Chrome extension sandboxes see
     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The template string.
     * @param {Object} [options] The options object.
     * @param {RegExp} [options.escape] The HTML "escape" delimiter.
     * @param {RegExp} [options.evaluate] The "evaluate" delimiter.
     * @param {Object} [options.imports] An object to import into the template as free variables.
     * @param {RegExp} [options.interpolate] The "interpolate" delimiter.
     * @param {string} [options.sourceURL] The sourceURL of the template's compiled source.
     * @param {string} [options.variable] The data object variable name.
     * @param- {Object} [otherOptions] Enables the legacy `options` param signature.
     * @returns {Function} Returns the compiled template function.
     * @example
     *
     * // using the "interpolate" delimiter to create a compiled template
     * var compiled = _.template('hello <%= user %>!');
     * compiled({ 'user': 'fred' });
     * // => 'hello fred!'
     *
     * // using the HTML "escape" delimiter to escape data property values
     * var compiled = _.template('<b><%- value %></b>');
     * compiled({ 'value': '<script>' });
     * // => '<b>&lt;script&gt;</b>'
     *
     * // using the "evaluate" delimiter to execute JavaScript and generate HTML
     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // using the internal `print` function in "evaluate" delimiters
     * var compiled = _.template('<% print("hello " + user); %>!');
     * compiled({ 'user': 'barney' });
     * // => 'hello barney!'
     *
     * // using the ES delimiter as an alternative to the default "interpolate" delimiter
     * var compiled = _.template('hello ${ user }!');
     * compiled({ 'user': 'pebbles' });
     * // => 'hello pebbles!'
     *
     * // using custom template delimiters
     * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
     * var compiled = _.template('hello {{ user }}!');
     * compiled({ 'user': 'mustache' });
     * // => 'hello mustache!'
     *
     * // using backslashes to treat delimiters as plain text
     * var compiled = _.template('<%= "\\<%- value %\\>" %>');
     * compiled({ 'value': 'ignored' });
     * // => '<%- value %>'
     *
     * // using the `imports` option to import `jQuery` as `jq`
     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // using the `sourceURL` option to specify a custom sourceURL for the template
     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
     * compiled(data);
     * // => find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector
     *
     * // using the `variable` option to ensure a with-statement isn't used in the compiled template
     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
     * compiled.source;
     * // => function(data) {
     * //   var __t, __p = '';
     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
     * //   return __p;
     * // }
     *
     * // using the `source` property to inline compiled templates for meaningful
     * // line numbers in error messages and a stack trace
     * fs.writeFileSync(path.join(cwd, 'jst.js'), '\
     *   var JST = {\
     *     "main": ' + _.template(mainText).source + '\
     *   };\
     * ');
     */
    function template(string, options, otherOptions) {
      // Based on John Resig's `tmpl` implementation (http://ejohn.org/blog/javascript-micro-templating/)
      // and Laura Doktorova's doT.js (https://github.com/olado/doT).
      var settings = lodash.templateSettings;

      if (otherOptions && isIterateeCall(string, options, otherOptions)) {
        options = otherOptions = undefined;
      }
      string = baseToString(string);
      options = assignWith(baseAssign({}, otherOptions || options), settings, assignOwnDefaults);

      var imports = assignWith(baseAssign({}, options.imports), settings.imports, assignOwnDefaults),
          importsKeys = keys(imports),
          importsValues = baseValues(imports, importsKeys);

      var isEscaping,
          isEvaluating,
          index = 0,
          interpolate = options.interpolate || reNoMatch,
          source = "__p += '";

      // Compile the regexp to match each delimiter.
      var reDelimiters = RegExp(
        (options.escape || reNoMatch).source + '|' +
        interpolate.source + '|' +
        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
        (options.evaluate || reNoMatch).source + '|$'
      , 'g');

      // Use a sourceURL for easier debugging.
      var sourceURL = '//# sourceURL=' +
        ('sourceURL' in options
          ? options.sourceURL
          : ('lodash.templateSources[' + (++templateCounter) + ']')
        ) + '\n';

      string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
        interpolateValue || (interpolateValue = esTemplateValue);

        // Escape characters that can't be included in string literals.
        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);

        // Replace delimiters with snippets.
        if (escapeValue) {
          isEscaping = true;
          source += "' +\n__e(" + escapeValue + ") +\n'";
        }
        if (evaluateValue) {
          isEvaluating = true;
          source += "';\n" + evaluateValue + ";\n__p += '";
        }
        if (interpolateValue) {
          source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
        }
        index = offset + match.length;

        // The JS engine embedded in Adobe products requires returning the `match`
        // string in order to produce the correct `offset` value.
        return match;
      });

      source += "';\n";

      // If `variable` is not specified wrap a with-statement around the generated
      // code to add the data object to the top of the scope chain.
      var variable = options.variable;
      if (!variable) {
        source = 'with (obj) {\n' + source + '\n}\n';
      }
      // Cleanup code by stripping empty strings.
      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
        .replace(reEmptyStringMiddle, '$1')
        .replace(reEmptyStringTrailing, '$1;');

      // Frame code as the function body.
      source = 'function(' + (variable || 'obj') + ') {\n' +
        (variable
          ? ''
          : 'obj || (obj = {});\n'
        ) +
        "var __t, __p = ''" +
        (isEscaping
           ? ', __e = _.escape'
           : ''
        ) +
        (isEvaluating
          ? ', __j = Array.prototype.join;\n' +
            "function print() { __p += __j.call(arguments, '') }\n"
          : ';\n'
        ) +
        source +
        'return __p\n}';

      var result = attempt(function() {
        return Function(importsKeys, sourceURL + 'return ' + source).apply(undefined, importsValues);
      });

      // Provide the compiled function's source by its `toString` method or
      // the `source` property as a convenience for inlining compiled templates.
      result.source = source;
      if (isError(result)) {
        throw result;
      }
      return result;
    }

    /**
     * Removes leading and trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trim('  abc  ');
     * // => 'abc'
     *
     * _.trim('-_-abc-_-', '_-');
     * // => 'abc'
     *
     * _.map(['  foo  ', '  bar  '], _.trim);
     * // => ['foo', 'bar']
     */
    function trim(string, chars, guard) {
      var value = string;
      string = baseToString(string);
      if (!string) {
        return string;
      }
      if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
        return string.slice(trimmedLeftIndex(string), trimmedRightIndex(string) + 1);
      }
      chars = (chars + '');
      return string.slice(charsLeftIndex(string, chars), charsRightIndex(string, chars) + 1);
    }

    /**
     * Removes leading whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimLeft('  abc  ');
     * // => 'abc  '
     *
     * _.trimLeft('-_-abc-_-', '_-');
     * // => 'abc-_-'
     */
    function trimLeft(string, chars, guard) {
      var value = string;
      string = baseToString(string);
      if (!string) {
        return string;
      }
      if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
        return string.slice(trimmedLeftIndex(string));
      }
      return string.slice(charsLeftIndex(string, (chars + '')));
    }

    /**
     * Removes trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimRight('  abc  ');
     * // => '  abc'
     *
     * _.trimRight('-_-abc-_-', '_-');
     * // => '-_-abc'
     */
    function trimRight(string, chars, guard) {
      var value = string;
      string = baseToString(string);
      if (!string) {
        return string;
      }
      if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
        return string.slice(0, trimmedRightIndex(string) + 1);
      }
      return string.slice(0, charsRightIndex(string, (chars + '')) + 1);
    }

    /**
     * Truncates `string` if it's longer than the given maximum string length.
     * The last characters of the truncated string are replaced with the omission
     * string which defaults to "...".
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to truncate.
     * @param {Object|number} [options] The options object or maximum string length.
     * @param {number} [options.length=30] The maximum string length.
     * @param {string} [options.omission='...'] The string to indicate text is omitted.
     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {string} Returns the truncated string.
     * @example
     *
     * _.trunc('hi-diddly-ho there, neighborino');
     * // => 'hi-diddly-ho there, neighbo...'
     *
     * _.trunc('hi-diddly-ho there, neighborino', 24);
     * // => 'hi-diddly-ho there, n...'
     *
     * _.trunc('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': ' '
     * });
     * // => 'hi-diddly-ho there,...'
     *
     * _.trunc('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': /,? +/
     * });
     * // => 'hi-diddly-ho there...'
     *
     * _.trunc('hi-diddly-ho there, neighborino', {
     *   'omission': ' [...]'
     * });
     * // => 'hi-diddly-ho there, neig [...]'
     */
    function trunc(string, options, guard) {
      if (guard && isIterateeCall(string, options, guard)) {
        options = undefined;
      }
      var length = DEFAULT_TRUNC_LENGTH,
          omission = DEFAULT_TRUNC_OMISSION;

      if (options != null) {
        if (isObject(options)) {
          var separator = 'separator' in options ? options.separator : separator;
          length = 'length' in options ? (+options.length || 0) : length;
          omission = 'omission' in options ? baseToString(options.omission) : omission;
        } else {
          length = +options || 0;
        }
      }
      string = baseToString(string);
      if (length >= string.length) {
        return string;
      }
      var end = length - omission.length;
      if (end < 1) {
        return omission;
      }
      var result = string.slice(0, end);
      if (separator == null) {
        return result + omission;
      }
      if (isRegExp(separator)) {
        if (string.slice(end).search(separator)) {
          var match,
              newEnd,
              substring = string.slice(0, end);

          if (!separator.global) {
            separator = RegExp(separator.source, (reFlags.exec(separator) || '') + 'g');
          }
          separator.lastIndex = 0;
          while ((match = separator.exec(substring))) {
            newEnd = match.index;
          }
          result = result.slice(0, newEnd == null ? end : newEnd);
        }
      } else if (string.indexOf(separator, end) != end) {
        var index = result.lastIndexOf(separator);
        if (index > -1) {
          result = result.slice(0, index);
        }
      }
      return result + omission;
    }

    /**
     * The inverse of `_.escape`; this method converts the HTML entities
     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, `&#39;`, and `&#96;` in `string` to their
     * corresponding characters.
     *
     * **Note:** No other HTML entities are unescaped. To unescape additional HTML
     * entities use a third-party library like [_he_](https://mths.be/he).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to unescape.
     * @returns {string} Returns the unescaped string.
     * @example
     *
     * _.unescape('fred, barney, &amp; pebbles');
     * // => 'fred, barney, & pebbles'
     */
    function unescape(string) {
      string = baseToString(string);
      return (string && reHasEscapedHtml.test(string))
        ? string.replace(reEscapedHtml, unescapeHtmlChar)
        : string;
    }

    /**
     * Splits `string` into an array of its words.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {RegExp|string} [pattern] The pattern to match words.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the words of `string`.
     * @example
     *
     * _.words('fred, barney, & pebbles');
     * // => ['fred', 'barney', 'pebbles']
     *
     * _.words('fred, barney, & pebbles', /[^, ]+/g);
     * // => ['fred', 'barney', '&', 'pebbles']
     */
    function words(string, pattern, guard) {
      if (guard && isIterateeCall(string, pattern, guard)) {
        pattern = undefined;
      }
      string = baseToString(string);
      return string.match(pattern || reWords) || [];
    }

    /*------------------------------------------------------------------------*/

    /**
     * Attempts to invoke `func`, returning either the result or the caught error
     * object. Any additional arguments are provided to `func` when it is invoked.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Function} func The function to attempt.
     * @returns {*} Returns the `func` result or error object.
     * @example
     *
     * // avoid throwing errors for invalid selectors
     * var elements = _.attempt(function(selector) {
     *   return document.querySelectorAll(selector);
     * }, '>_>');
     *
     * if (_.isError(elements)) {
     *   elements = [];
     * }
     */
    var attempt = restParam(function(func, args) {
      try {
        return func.apply(undefined, args);
      } catch(e) {
        return isError(e) ? e : new Error(e);
      }
    });

    /**
     * Creates a function that invokes `func` with the `this` binding of `thisArg`
     * and arguments of the created function. If `func` is a property name the
     * created callback returns the property value for a given element. If `func`
     * is an object the created callback returns `true` for elements that contain
     * the equivalent object properties, otherwise it returns `false`.
     *
     * @static
     * @memberOf _
     * @alias iteratee
     * @category Utility
     * @param {*} [func=_.identity] The value to convert to a callback.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Function} Returns the callback.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * // wrap to create custom callback shorthands
     * _.callback = _.wrap(_.callback, function(callback, func, thisArg) {
     *   var match = /^(.+?)__([gl]t)(.+)$/.exec(func);
     *   if (!match) {
     *     return callback(func, thisArg);
     *   }
     *   return function(object) {
     *     return match[2] == 'gt'
     *       ? object[match[1]] > match[3]
     *       : object[match[1]] < match[3];
     *   };
     * });
     *
     * _.filter(users, 'age__gt36');
     * // => [{ 'user': 'fred', 'age': 40 }]
     */
    function callback(func, thisArg, guard) {
      if (guard && isIterateeCall(func, thisArg, guard)) {
        thisArg = undefined;
      }
      return isObjectLike(func)
        ? matches(func)
        : baseCallback(func, thisArg);
    }

    /**
     * Creates a function that returns `value`.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {*} value The value to return from the new function.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var object = { 'user': 'fred' };
     * var getter = _.constant(object);
     *
     * getter() === object;
     * // => true
     */
    function constant(value) {
      return function() {
        return value;
      };
    }

    /**
     * This method returns the first argument provided to it.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {*} value Any value.
     * @returns {*} Returns `value`.
     * @example
     *
     * var object = { 'user': 'fred' };
     *
     * _.identity(object) === object;
     * // => true
     */
    function identity(value) {
      return value;
    }

    /**
     * Creates a function that performs a deep comparison between a given object
     * and `source`, returning `true` if the given object has equivalent property
     * values, else `false`.
     *
     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
     * numbers, `Object` objects, regexes, and strings. Objects are compared by
     * their own, not inherited, enumerable properties. For comparing a single
     * own or inherited property value see `_.matchesProperty`.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * _.filter(users, _.matches({ 'age': 40, 'active': false }));
     * // => [{ 'user': 'fred', 'age': 40, 'active': false }]
     */
    function matches(source) {
      return baseMatches(baseClone(source, true));
    }

    /**
     * Creates a function that compares the property value of `path` on a given
     * object to `value`.
     *
     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
     * numbers, `Object` objects, regexes, and strings. Objects are compared by
     * their own, not inherited, enumerable properties.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Array|string} path The path of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * _.find(users, _.matchesProperty('user', 'fred'));
     * // => { 'user': 'fred' }
     */
    function matchesProperty(path, srcValue) {
      return baseMatchesProperty(path, baseClone(srcValue, true));
    }

    /**
     * Creates a function that invokes the method at `path` on a given object.
     * Any additional arguments are provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Array|string} path The path of the method to invoke.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': { 'c': _.constant(2) } } },
     *   { 'a': { 'b': { 'c': _.constant(1) } } }
     * ];
     *
     * _.map(objects, _.method('a.b.c'));
     * // => [2, 1]
     *
     * _.invoke(_.sortBy(objects, _.method(['a', 'b', 'c'])), 'a.b.c');
     * // => [1, 2]
     */
    var method = restParam(function(path, args) {
      return function(object) {
        return invokePath(object, path, args);
      };
    });

    /**
     * The opposite of `_.method`; this method creates a function that invokes
     * the method at a given path on `object`. Any additional arguments are
     * provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Object} object The object to query.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var array = _.times(3, _.constant),
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.methodOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));
     * // => [2, 0]
     */
    var methodOf = restParam(function(object, args) {
      return function(path) {
        return invokePath(object, path, args);
      };
    });

    /**
     * Adds all own enumerable function properties of a source object to the
     * destination object. If `object` is a function then methods are added to
     * its prototype as well.
     *
     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
     * avoid conflicts caused by modifying the original.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Function|Object} [object=lodash] The destination object.
     * @param {Object} source The object of functions to add.
     * @param {Object} [options] The options object.
     * @param {boolean} [options.chain=true] Specify whether the functions added
     *  are chainable.
     * @returns {Function|Object} Returns `object`.
     * @example
     *
     * function vowels(string) {
     *   return _.filter(string, function(v) {
     *     return /[aeiou]/i.test(v);
     *   });
     * }
     *
     * _.mixin({ 'vowels': vowels });
     * _.vowels('fred');
     * // => ['e']
     *
     * _('fred').vowels().value();
     * // => ['e']
     *
     * _.mixin({ 'vowels': vowels }, { 'chain': false });
     * _('fred').vowels();
     * // => ['e']
     */
    function mixin(object, source, options) {
      if (options == null) {
        var isObj = isObject(source),
            props = isObj ? keys(source) : undefined,
            methodNames = (props && props.length) ? baseFunctions(source, props) : undefined;

        if (!(methodNames ? methodNames.length : isObj)) {
          methodNames = false;
          options = source;
          source = object;
          object = this;
        }
      }
      if (!methodNames) {
        methodNames = baseFunctions(source, keys(source));
      }
      var chain = true,
          index = -1,
          isFunc = isFunction(object),
          length = methodNames.length;

      if (options === false) {
        chain = false;
      } else if (isObject(options) && 'chain' in options) {
        chain = options.chain;
      }
      while (++index < length) {
        var methodName = methodNames[index],
            func = source[methodName];

        object[methodName] = func;
        if (isFunc) {
          object.prototype[methodName] = (function(func) {
            return function() {
              var chainAll = this.__chain__;
              if (chain || chainAll) {
                var result = object(this.__wrapped__),
                    actions = result.__actions__ = arrayCopy(this.__actions__);

                actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
                result.__chain__ = chainAll;
                return result;
              }
              return func.apply(object, arrayPush([this.value()], arguments));
            };
          }(func));
        }
      }
      return object;
    }

    /**
     * Reverts the `_` variable to its previous value and returns a reference to
     * the `lodash` function.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @returns {Function} Returns the `lodash` function.
     * @example
     *
     * var lodash = _.noConflict();
     */
    function noConflict() {
      root._ = oldDash;
      return this;
    }

    /**
     * A no-operation function that returns `undefined` regardless of the
     * arguments it receives.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @example
     *
     * var object = { 'user': 'fred' };
     *
     * _.noop(object) === undefined;
     * // => true
     */
    function noop() {
      // No operation performed.
    }

    /**
     * Creates a function that returns the property value at `path` on a
     * given object.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': { 'c': 2 } } },
     *   { 'a': { 'b': { 'c': 1 } } }
     * ];
     *
     * _.map(objects, _.property('a.b.c'));
     * // => [2, 1]
     *
     * _.pluck(_.sortBy(objects, _.property(['a', 'b', 'c'])), 'a.b.c');
     * // => [1, 2]
     */
    function property(path) {
      return isKey(path) ? baseProperty(path) : basePropertyDeep(path);
    }

    /**
     * The opposite of `_.property`; this method creates a function that returns
     * the property value at a given path on `object`.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Object} object The object to query.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var array = [0, 1, 2],
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
     * // => [2, 0]
     */
    function propertyOf(object) {
      return function(path) {
        return baseGet(object, toPath(path), path + '');
      };
    }

    /**
     * Creates an array of numbers (positive and/or negative) progressing from
     * `start` up to, but not including, `end`. If `end` is not specified it is
     * set to `start` with `start` then set to `0`. If `end` is less than `start`
     * a zero-length range is created unless a negative `step` is specified.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @param {number} [step=1] The value to increment or decrement by.
     * @returns {Array} Returns the new array of numbers.
     * @example
     *
     * _.range(4);
     * // => [0, 1, 2, 3]
     *
     * _.range(1, 5);
     * // => [1, 2, 3, 4]
     *
     * _.range(0, 20, 5);
     * // => [0, 5, 10, 15]
     *
     * _.range(0, -4, -1);
     * // => [0, -1, -2, -3]
     *
     * _.range(1, 4, 0);
     * // => [1, 1, 1]
     *
     * _.range(0);
     * // => []
     */
    function range(start, end, step) {
      if (step && isIterateeCall(start, end, step)) {
        end = step = undefined;
      }
      start = +start || 0;
      step = step == null ? 1 : (+step || 0);

      if (end == null) {
        end = start;
        start = 0;
      } else {
        end = +end || 0;
      }
      // Use `Array(length)` so engines like Chakra and V8 avoid slower modes.
      // See https://youtu.be/XAqIpGU8ZZk#t=17m25s for more details.
      var index = -1,
          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
          result = Array(length);

      while (++index < length) {
        result[index] = start;
        start += step;
      }
      return result;
    }

    /**
     * Invokes the iteratee function `n` times, returning an array of the results
     * of each invocation. The `iteratee` is bound to `thisArg` and invoked with
     * one argument; (index).
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {number} n The number of times to invoke `iteratee`.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * var diceRolls = _.times(3, _.partial(_.random, 1, 6, false));
     * // => [3, 6, 4]
     *
     * _.times(3, function(n) {
     *   mage.castSpell(n);
     * });
     * // => invokes `mage.castSpell(n)` three times with `n` of `0`, `1`, and `2`
     *
     * _.times(3, function(n) {
     *   this.cast(n);
     * }, mage);
     * // => also invokes `mage.castSpell(n)` three times
     */
    function times(n, iteratee, thisArg) {
      n = nativeFloor(n);

      // Exit early to avoid a JSC JIT bug in Safari 8
      // where `Array(0)` is treated as `Array(1)`.
      if (n < 1 || !nativeIsFinite(n)) {
        return [];
      }
      var index = -1,
          result = Array(nativeMin(n, MAX_ARRAY_LENGTH));

      iteratee = bindCallback(iteratee, thisArg, 1);
      while (++index < n) {
        if (index < MAX_ARRAY_LENGTH) {
          result[index] = iteratee(index);
        } else {
          iteratee(index);
        }
      }
      return result;
    }

    /**
     * Generates a unique ID. If `prefix` is provided the ID is appended to it.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {string} [prefix] The value to prefix the ID with.
     * @returns {string} Returns the unique ID.
     * @example
     *
     * _.uniqueId('contact_');
     * // => 'contact_104'
     *
     * _.uniqueId();
     * // => '105'
     */
    function uniqueId(prefix) {
      var id = ++idCounter;
      return baseToString(prefix) + id;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Adds two numbers.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {number} augend The first number to add.
     * @param {number} addend The second number to add.
     * @returns {number} Returns the sum.
     * @example
     *
     * _.add(6, 4);
     * // => 10
     */
    function add(augend, addend) {
      return (+augend || 0) + (+addend || 0);
    }

    /**
     * Calculates `n` rounded up to `precision`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {number} n The number to round up.
     * @param {number} [precision=0] The precision to round up to.
     * @returns {number} Returns the rounded up number.
     * @example
     *
     * _.ceil(4.006);
     * // => 5
     *
     * _.ceil(6.004, 2);
     * // => 6.01
     *
     * _.ceil(6040, -2);
     * // => 6100
     */
    var ceil = createRound('ceil');

    /**
     * Calculates `n` rounded down to `precision`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {number} n The number to round down.
     * @param {number} [precision=0] The precision to round down to.
     * @returns {number} Returns the rounded down number.
     * @example
     *
     * _.floor(4.006);
     * // => 4
     *
     * _.floor(0.046, 2);
     * // => 0.04
     *
     * _.floor(4060, -2);
     * // => 4000
     */
    var floor = createRound('floor');

    /**
     * Gets the maximum value of `collection`. If `collection` is empty or falsey
     * `-Infinity` is returned. If an iteratee function is provided it is invoked
     * for each value in `collection` to generate the criterion by which the value
     * is ranked. The `iteratee` is bound to `thisArg` and invoked with three
     * arguments: (value, index, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {*} Returns the maximum value.
     * @example
     *
     * _.max([4, 2, 8, 6]);
     * // => 8
     *
     * _.max([]);
     * // => -Infinity
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * _.max(users, function(chr) {
     *   return chr.age;
     * });
     * // => { 'user': 'fred', 'age': 40 }
     *
     * // using the `_.property` callback shorthand
     * _.max(users, 'age');
     * // => { 'user': 'fred', 'age': 40 }
     */
    var max = createExtremum(gt, NEGATIVE_INFINITY);

    /**
     * Gets the minimum value of `collection`. If `collection` is empty or falsey
     * `Infinity` is returned. If an iteratee function is provided it is invoked
     * for each value in `collection` to generate the criterion by which the value
     * is ranked. The `iteratee` is bound to `thisArg` and invoked with three
     * arguments: (value, index, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {*} Returns the minimum value.
     * @example
     *
     * _.min([4, 2, 8, 6]);
     * // => 2
     *
     * _.min([]);
     * // => Infinity
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * _.min(users, function(chr) {
     *   return chr.age;
     * });
     * // => { 'user': 'barney', 'age': 36 }
     *
     * // using the `_.property` callback shorthand
     * _.min(users, 'age');
     * // => { 'user': 'barney', 'age': 36 }
     */
    var min = createExtremum(lt, POSITIVE_INFINITY);

    /**
     * Calculates `n` rounded to `precision`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {number} n The number to round.
     * @param {number} [precision=0] The precision to round to.
     * @returns {number} Returns the rounded number.
     * @example
     *
     * _.round(4.006);
     * // => 4
     *
     * _.round(4.006, 2);
     * // => 4.01
     *
     * _.round(4060, -2);
     * // => 4100
     */
    var round = createRound('round');

    /**
     * Gets the sum of the values in `collection`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {number} Returns the sum.
     * @example
     *
     * _.sum([4, 6]);
     * // => 10
     *
     * _.sum({ 'a': 4, 'b': 6 });
     * // => 10
     *
     * var objects = [
     *   { 'n': 4 },
     *   { 'n': 6 }
     * ];
     *
     * _.sum(objects, function(object) {
     *   return object.n;
     * });
     * // => 10
     *
     * // using the `_.property` callback shorthand
     * _.sum(objects, 'n');
     * // => 10
     */
    function sum(collection, iteratee, thisArg) {
      if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
        iteratee = undefined;
      }
      iteratee = getCallback(iteratee, thisArg, 3);
      return iteratee.length == 1
        ? arraySum(isArray(collection) ? collection : toIterable(collection), iteratee)
        : baseSum(collection, iteratee);
    }

    /*------------------------------------------------------------------------*/

    // Ensure wrappers are instances of `baseLodash`.
    lodash.prototype = baseLodash.prototype;

    LodashWrapper.prototype = baseCreate(baseLodash.prototype);
    LodashWrapper.prototype.constructor = LodashWrapper;

    LazyWrapper.prototype = baseCreate(baseLodash.prototype);
    LazyWrapper.prototype.constructor = LazyWrapper;

    // Add functions to the `Map` cache.
    MapCache.prototype['delete'] = mapDelete;
    MapCache.prototype.get = mapGet;
    MapCache.prototype.has = mapHas;
    MapCache.prototype.set = mapSet;

    // Add functions to the `Set` cache.
    SetCache.prototype.push = cachePush;

    // Assign cache to `_.memoize`.
    memoize.Cache = MapCache;

    // Add functions that return wrapped values when chaining.
    lodash.after = after;
    lodash.ary = ary;
    lodash.assign = assign;
    lodash.at = at;
    lodash.before = before;
    lodash.bind = bind;
    lodash.bindAll = bindAll;
    lodash.bindKey = bindKey;
    lodash.callback = callback;
    lodash.chain = chain;
    lodash.chunk = chunk;
    lodash.compact = compact;
    lodash.constant = constant;
    lodash.countBy = countBy;
    lodash.create = create;
    lodash.curry = curry;
    lodash.curryRight = curryRight;
    lodash.debounce = debounce;
    lodash.defaults = defaults;
    lodash.defaultsDeep = defaultsDeep;
    lodash.defer = defer;
    lodash.delay = delay;
    lodash.difference = difference;
    lodash.drop = drop;
    lodash.dropRight = dropRight;
    lodash.dropRightWhile = dropRightWhile;
    lodash.dropWhile = dropWhile;
    lodash.fill = fill;
    lodash.filter = filter;
    lodash.flatten = flatten;
    lodash.flattenDeep = flattenDeep;
    lodash.flow = flow;
    lodash.flowRight = flowRight;
    lodash.forEach = forEach;
    lodash.forEachRight = forEachRight;
    lodash.forIn = forIn;
    lodash.forInRight = forInRight;
    lodash.forOwn = forOwn;
    lodash.forOwnRight = forOwnRight;
    lodash.functions = functions;
    lodash.groupBy = groupBy;
    lodash.indexBy = indexBy;
    lodash.initial = initial;
    lodash.intersection = intersection;
    lodash.invert = invert;
    lodash.invoke = invoke;
    lodash.keys = keys;
    lodash.keysIn = keysIn;
    lodash.map = map;
    lodash.mapKeys = mapKeys;
    lodash.mapValues = mapValues;
    lodash.matches = matches;
    lodash.matchesProperty = matchesProperty;
    lodash.memoize = memoize;
    lodash.merge = merge;
    lodash.method = method;
    lodash.methodOf = methodOf;
    lodash.mixin = mixin;
    lodash.modArgs = modArgs;
    lodash.negate = negate;
    lodash.omit = omit;
    lodash.once = once;
    lodash.pairs = pairs;
    lodash.partial = partial;
    lodash.partialRight = partialRight;
    lodash.partition = partition;
    lodash.pick = pick;
    lodash.pluck = pluck;
    lodash.property = property;
    lodash.propertyOf = propertyOf;
    lodash.pull = pull;
    lodash.pullAt = pullAt;
    lodash.range = range;
    lodash.rearg = rearg;
    lodash.reject = reject;
    lodash.remove = remove;
    lodash.rest = rest;
    lodash.restParam = restParam;
    lodash.set = set;
    lodash.shuffle = shuffle;
    lodash.slice = slice;
    lodash.sortBy = sortBy;
    lodash.sortByAll = sortByAll;
    lodash.sortByOrder = sortByOrder;
    lodash.spread = spread;
    lodash.take = take;
    lodash.takeRight = takeRight;
    lodash.takeRightWhile = takeRightWhile;
    lodash.takeWhile = takeWhile;
    lodash.tap = tap;
    lodash.throttle = throttle;
    lodash.thru = thru;
    lodash.times = times;
    lodash.toArray = toArray;
    lodash.toPlainObject = toPlainObject;
    lodash.transform = transform;
    lodash.union = union;
    lodash.uniq = uniq;
    lodash.unzip = unzip;
    lodash.unzipWith = unzipWith;
    lodash.values = values;
    lodash.valuesIn = valuesIn;
    lodash.where = where;
    lodash.without = without;
    lodash.wrap = wrap;
    lodash.xor = xor;
    lodash.zip = zip;
    lodash.zipObject = zipObject;
    lodash.zipWith = zipWith;

    // Add aliases.
    lodash.backflow = flowRight;
    lodash.collect = map;
    lodash.compose = flowRight;
    lodash.each = forEach;
    lodash.eachRight = forEachRight;
    lodash.extend = assign;
    lodash.iteratee = callback;
    lodash.methods = functions;
    lodash.object = zipObject;
    lodash.select = filter;
    lodash.tail = rest;
    lodash.unique = uniq;

    // Add functions to `lodash.prototype`.
    mixin(lodash, lodash);

    /*------------------------------------------------------------------------*/

    // Add functions that return unwrapped values when chaining.
    lodash.add = add;
    lodash.attempt = attempt;
    lodash.camelCase = camelCase;
    lodash.capitalize = capitalize;
    lodash.ceil = ceil;
    lodash.clone = clone;
    lodash.cloneDeep = cloneDeep;
    lodash.deburr = deburr;
    lodash.endsWith = endsWith;
    lodash.escape = escape;
    lodash.escapeRegExp = escapeRegExp;
    lodash.every = every;
    lodash.find = find;
    lodash.findIndex = findIndex;
    lodash.findKey = findKey;
    lodash.findLast = findLast;
    lodash.findLastIndex = findLastIndex;
    lodash.findLastKey = findLastKey;
    lodash.findWhere = findWhere;
    lodash.first = first;
    lodash.floor = floor;
    lodash.get = get;
    lodash.gt = gt;
    lodash.gte = gte;
    lodash.has = has;
    lodash.identity = identity;
    lodash.includes = includes;
    lodash.indexOf = indexOf;
    lodash.inRange = inRange;
    lodash.isArguments = isArguments;
    lodash.isArray = isArray;
    lodash.isBoolean = isBoolean;
    lodash.isDate = isDate;
    lodash.isElement = isElement;
    lodash.isEmpty = isEmpty;
    lodash.isEqual = isEqual;
    lodash.isError = isError;
    lodash.isFinite = isFinite;
    lodash.isFunction = isFunction;
    lodash.isMatch = isMatch;
    lodash.isNaN = isNaN;
    lodash.isNative = isNative;
    lodash.isNull = isNull;
    lodash.isNumber = isNumber;
    lodash.isObject = isObject;
    lodash.isPlainObject = isPlainObject;
    lodash.isRegExp = isRegExp;
    lodash.isString = isString;
    lodash.isTypedArray = isTypedArray;
    lodash.isUndefined = isUndefined;
    lodash.kebabCase = kebabCase;
    lodash.last = last;
    lodash.lastIndexOf = lastIndexOf;
    lodash.lt = lt;
    lodash.lte = lte;
    lodash.max = max;
    lodash.min = min;
    lodash.noConflict = noConflict;
    lodash.noop = noop;
    lodash.now = now;
    lodash.pad = pad;
    lodash.padLeft = padLeft;
    lodash.padRight = padRight;
    lodash.parseInt = parseInt;
    lodash.random = random;
    lodash.reduce = reduce;
    lodash.reduceRight = reduceRight;
    lodash.repeat = repeat;
    lodash.result = result;
    lodash.round = round;
    lodash.runInContext = runInContext;
    lodash.size = size;
    lodash.snakeCase = snakeCase;
    lodash.some = some;
    lodash.sortedIndex = sortedIndex;
    lodash.sortedLastIndex = sortedLastIndex;
    lodash.startCase = startCase;
    lodash.startsWith = startsWith;
    lodash.sum = sum;
    lodash.template = template;
    lodash.trim = trim;
    lodash.trimLeft = trimLeft;
    lodash.trimRight = trimRight;
    lodash.trunc = trunc;
    lodash.unescape = unescape;
    lodash.uniqueId = uniqueId;
    lodash.words = words;

    // Add aliases.
    lodash.all = every;
    lodash.any = some;
    lodash.contains = includes;
    lodash.eq = isEqual;
    lodash.detect = find;
    lodash.foldl = reduce;
    lodash.foldr = reduceRight;
    lodash.head = first;
    lodash.include = includes;
    lodash.inject = reduce;

    mixin(lodash, (function() {
      var source = {};
      baseForOwn(lodash, function(func, methodName) {
        if (!lodash.prototype[methodName]) {
          source[methodName] = func;
        }
      });
      return source;
    }()), false);

    /*------------------------------------------------------------------------*/

    // Add functions capable of returning wrapped and unwrapped values when chaining.
    lodash.sample = sample;

    lodash.prototype.sample = function(n) {
      if (!this.__chain__ && n == null) {
        return sample(this.value());
      }
      return this.thru(function(value) {
        return sample(value, n);
      });
    };

    /*------------------------------------------------------------------------*/

    /**
     * The semantic version number.
     *
     * @static
     * @memberOf _
     * @type string
     */
    lodash.VERSION = VERSION;

    // Assign default placeholders.
    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
      lodash[methodName].placeholder = lodash;
    });

    // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
    arrayEach(['drop', 'take'], function(methodName, index) {
      LazyWrapper.prototype[methodName] = function(n) {
        var filtered = this.__filtered__;
        if (filtered && !index) {
          return new LazyWrapper(this);
        }
        n = n == null ? 1 : nativeMax(nativeFloor(n) || 0, 0);

        var result = this.clone();
        if (filtered) {
          result.__takeCount__ = nativeMin(result.__takeCount__, n);
        } else {
          result.__views__.push({ 'size': n, 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') });
        }
        return result;
      };

      LazyWrapper.prototype[methodName + 'Right'] = function(n) {
        return this.reverse()[methodName](n).reverse();
      };
    });

    // Add `LazyWrapper` methods that accept an `iteratee` value.
    arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
      var type = index + 1,
          isFilter = type != LAZY_MAP_FLAG;

      LazyWrapper.prototype[methodName] = function(iteratee, thisArg) {
        var result = this.clone();
        result.__iteratees__.push({ 'iteratee': getCallback(iteratee, thisArg, 1), 'type': type });
        result.__filtered__ = result.__filtered__ || isFilter;
        return result;
      };
    });

    // Add `LazyWrapper` methods for `_.first` and `_.last`.
    arrayEach(['first', 'last'], function(methodName, index) {
      var takeName = 'take' + (index ? 'Right' : '');

      LazyWrapper.prototype[methodName] = function() {
        return this[takeName](1).value()[0];
      };
    });

    // Add `LazyWrapper` methods for `_.initial` and `_.rest`.
    arrayEach(['initial', 'rest'], function(methodName, index) {
      var dropName = 'drop' + (index ? '' : 'Right');

      LazyWrapper.prototype[methodName] = function() {
        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
      };
    });

    // Add `LazyWrapper` methods for `_.pluck` and `_.where`.
    arrayEach(['pluck', 'where'], function(methodName, index) {
      var operationName = index ? 'filter' : 'map',
          createCallback = index ? baseMatches : property;

      LazyWrapper.prototype[methodName] = function(value) {
        return this[operationName](createCallback(value));
      };
    });

    LazyWrapper.prototype.compact = function() {
      return this.filter(identity);
    };

    LazyWrapper.prototype.reject = function(predicate, thisArg) {
      predicate = getCallback(predicate, thisArg, 1);
      return this.filter(function(value) {
        return !predicate(value);
      });
    };

    LazyWrapper.prototype.slice = function(start, end) {
      start = start == null ? 0 : (+start || 0);

      var result = this;
      if (result.__filtered__ && (start > 0 || end < 0)) {
        return new LazyWrapper(result);
      }
      if (start < 0) {
        result = result.takeRight(-start);
      } else if (start) {
        result = result.drop(start);
      }
      if (end !== undefined) {
        end = (+end || 0);
        result = end < 0 ? result.dropRight(-end) : result.take(end - start);
      }
      return result;
    };

    LazyWrapper.prototype.takeRightWhile = function(predicate, thisArg) {
      return this.reverse().takeWhile(predicate, thisArg).reverse();
    };

    LazyWrapper.prototype.toArray = function() {
      return this.take(POSITIVE_INFINITY);
    };

    // Add `LazyWrapper` methods to `lodash.prototype`.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var checkIteratee = /^(?:filter|map|reject)|While$/.test(methodName),
          retUnwrapped = /^(?:first|last)$/.test(methodName),
          lodashFunc = lodash[retUnwrapped ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName];

      if (!lodashFunc) {
        return;
      }
      lodash.prototype[methodName] = function() {
        var args = retUnwrapped ? [1] : arguments,
            chainAll = this.__chain__,
            value = this.__wrapped__,
            isHybrid = !!this.__actions__.length,
            isLazy = value instanceof LazyWrapper,
            iteratee = args[0],
            useLazy = isLazy || isArray(value);

        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
          // Avoid lazy use if the iteratee has a "length" value other than `1`.
          isLazy = useLazy = false;
        }
        var interceptor = function(value) {
          return (retUnwrapped && chainAll)
            ? lodashFunc(value, 1)[0]
            : lodashFunc.apply(undefined, arrayPush([value], args));
        };

        var action = { 'func': thru, 'args': [interceptor], 'thisArg': undefined },
            onlyLazy = isLazy && !isHybrid;

        if (retUnwrapped && !chainAll) {
          if (onlyLazy) {
            value = value.clone();
            value.__actions__.push(action);
            return func.call(value);
          }
          return lodashFunc.call(undefined, this.value())[0];
        }
        if (!retUnwrapped && useLazy) {
          value = onlyLazy ? value : new LazyWrapper(this);
          var result = func.apply(value, args);
          result.__actions__.push(action);
          return new LodashWrapper(result, chainAll);
        }
        return this.thru(interceptor);
      };
    });

    // Add `Array` and `String` methods to `lodash.prototype`.
    arrayEach(['join', 'pop', 'push', 'replace', 'shift', 'sort', 'splice', 'split', 'unshift'], function(methodName) {
      var func = (/^(?:replace|split)$/.test(methodName) ? stringProto : arrayProto)[methodName],
          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
          retUnwrapped = /^(?:join|pop|replace|shift)$/.test(methodName);

      lodash.prototype[methodName] = function() {
        var args = arguments;
        if (retUnwrapped && !this.__chain__) {
          return func.apply(this.value(), args);
        }
        return this[chainName](function(value) {
          return func.apply(value, args);
        });
      };
    });

    // Map minified function names to their real names.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var lodashFunc = lodash[methodName];
      if (lodashFunc) {
        var key = lodashFunc.name,
            names = realNames[key] || (realNames[key] = []);

        names.push({ 'name': methodName, 'func': lodashFunc });
      }
    });

    realNames[createHybridWrapper(undefined, BIND_KEY_FLAG).name] = [{ 'name': 'wrapper', 'func': undefined }];

    // Add functions to the lazy wrapper.
    LazyWrapper.prototype.clone = lazyClone;
    LazyWrapper.prototype.reverse = lazyReverse;
    LazyWrapper.prototype.value = lazyValue;

    // Add chaining functions to the `lodash` wrapper.
    lodash.prototype.chain = wrapperChain;
    lodash.prototype.commit = wrapperCommit;
    lodash.prototype.concat = wrapperConcat;
    lodash.prototype.plant = wrapperPlant;
    lodash.prototype.reverse = wrapperReverse;
    lodash.prototype.toString = wrapperToString;
    lodash.prototype.run = lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;

    // Add function aliases to the `lodash` wrapper.
    lodash.prototype.collect = lodash.prototype.map;
    lodash.prototype.head = lodash.prototype.first;
    lodash.prototype.select = lodash.prototype.filter;
    lodash.prototype.tail = lodash.prototype.rest;

    return lodash;
  }

  /*--------------------------------------------------------------------------*/

  // Export lodash.
  var _ = runInContext();

  // Some AMD build optimizers like r.js check for condition patterns like the following:
  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
    // Expose lodash to the global object when an AMD loader is present to avoid
    // errors in cases where lodash is loaded by a script tag and not intended
    // as an AMD module. See http://requirejs.org/docs/errors.html#mismatch for
    // more details.
    root._ = _;

    // Define as an anonymous module so, through path mapping, it can be
    // referenced as the "underscore" module.
    define(function() {
      return _;
    });
  }
  // Check for `exports` after `define` in case a build optimizer adds an `exports` object.
  else if (freeExports && freeModule) {
    // Export for Node.js or RingoJS.
    if (moduleExports) {
      (freeModule.exports = _)._ = _;
    }
    // Export for Rhino with CommonJS support.
    else {
      freeExports._ = _;
    }
  }
  else {
    // Export for a browser or Rhino.
    root._ = _;
  }
}.call(this));

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],143:[function(require,module,exports){
var bn = require('bn.js');
var brorand = require('brorand');

function MillerRabin(rand) {
  this.rand = rand || new brorand.Rand();
}
module.exports = MillerRabin;

MillerRabin.create = function create(rand) {
  return new MillerRabin(rand);
};

MillerRabin.prototype._rand = function _rand(n) {
  var len = n.bitLength();
  var buf = this.rand.generate(Math.ceil(len / 8));

  // Set low bits
  buf[0] |= 3;

  // Mask high bits
  var mask = len & 0x7;
  if (mask !== 0)
    buf[buf.length - 1] >>= 7 - mask;

  return new bn(buf);
}

MillerRabin.prototype.test = function test(n, k, cb) {
  var len = n.bitLength();
  var red = bn.mont(n);
  var rone = new bn(1).toRed(red);

  if (!k)
    k = Math.max(1, (len / 48) | 0);

  // Find d and s, (n - 1) = (2 ^ s) * d;
  var n1 = n.subn(1);
  var n2 = n1.subn(1);
  for (var s = 0; !n1.testn(s); s++) {}
  var d = n.shrn(s);

  var rn1 = n1.toRed(red);

  var prime = true;
  for (; k > 0; k--) {
    var a = this._rand(n2);
    if (cb)
      cb(a);

    var x = a.toRed(red).redPow(d);
    if (x.cmp(rone) === 0 || x.cmp(rn1) === 0)
      continue;

    for (var i = 1; i < s; i++) {
      x = x.redSqr();

      if (x.cmp(rone) === 0)
        return false;
      if (x.cmp(rn1) === 0)
        break;
    }

    if (i === s)
      return false;
  }

  return prime;
};

MillerRabin.prototype.getDivisor = function getDivisor(n, k) {
  var len = n.bitLength();
  var red = bn.mont(n);
  var rone = new bn(1).toRed(red);

  if (!k)
    k = Math.max(1, (len / 48) | 0);

  // Find d and s, (n - 1) = (2 ^ s) * d;
  var n1 = n.subn(1);
  var n2 = n1.subn(1);
  for (var s = 0; !n1.testn(s); s++) {}
  var d = n.shrn(s);

  var rn1 = n1.toRed(red);

  for (; k > 0; k--) {
    var a = this._rand(n2);

    var g = n.gcd(a);
    if (g.cmpn(1) !== 0)
      return g;

    var x = a.toRed(red).redPow(d);
    if (x.cmp(rone) === 0 || x.cmp(rn1) === 0)
      continue;

    for (var i = 1; i < s; i++) {
      x = x.redSqr();

      if (x.cmp(rone) === 0)
        return x.fromRed().subn(1).gcd(n);
      if (x.cmp(rn1) === 0)
        break;
    }

    if (i === s) {
      x = x.redSqr();
      return x.fromRed().subn(1).gcd(n);
    }
  }

  return false;
};

},{"bn.js":65,"brorand":66}],144:[function(require,module,exports){
module.exports = assert;

function assert(val, msg) {
  if (!val)
    throw new Error(msg || 'Assertion failed');
}

assert.equal = function assertEqual(l, r, msg) {
  if (l != r)
    throw new Error(msg || ('Assertion failed: ' + l + ' != ' + r));
};

},{}],145:[function(require,module,exports){
module.exports={"2.16.840.1.101.3.4.1.1": "aes-128-ecb",
"2.16.840.1.101.3.4.1.2": "aes-128-cbc",
"2.16.840.1.101.3.4.1.3": "aes-128-ofb",
"2.16.840.1.101.3.4.1.4": "aes-128-cfb",
"2.16.840.1.101.3.4.1.21": "aes-192-ecb",
"2.16.840.1.101.3.4.1.22": "aes-192-cbc",
"2.16.840.1.101.3.4.1.23": "aes-192-ofb",
"2.16.840.1.101.3.4.1.24": "aes-192-cfb",
"2.16.840.1.101.3.4.1.41": "aes-256-ecb",
"2.16.840.1.101.3.4.1.42": "aes-256-cbc",
"2.16.840.1.101.3.4.1.43": "aes-256-ofb",
"2.16.840.1.101.3.4.1.44": "aes-256-cfb"
}
},{}],146:[function(require,module,exports){
// from https://github.com/indutny/self-signed/blob/gh-pages/lib/asn1.js
// Fedor, you are amazing.

var asn1 = require('asn1.js')

var RSAPrivateKey = asn1.define('RSAPrivateKey', function () {
  this.seq().obj(
    this.key('version').int(),
    this.key('modulus').int(),
    this.key('publicExponent').int(),
    this.key('privateExponent').int(),
    this.key('prime1').int(),
    this.key('prime2').int(),
    this.key('exponent1').int(),
    this.key('exponent2').int(),
    this.key('coefficient').int()
  )
})
exports.RSAPrivateKey = RSAPrivateKey

var RSAPublicKey = asn1.define('RSAPublicKey', function () {
  this.seq().obj(
    this.key('modulus').int(),
    this.key('publicExponent').int()
  )
})
exports.RSAPublicKey = RSAPublicKey

var PublicKey = asn1.define('SubjectPublicKeyInfo', function () {
  this.seq().obj(
    this.key('algorithm').use(AlgorithmIdentifier),
    this.key('subjectPublicKey').bitstr()
  )
})
exports.PublicKey = PublicKey

var AlgorithmIdentifier = asn1.define('AlgorithmIdentifier', function () {
  this.seq().obj(
    this.key('algorithm').objid(),
    this.key('none').null_().optional(),
    this.key('curve').objid().optional(),
    this.key('params').seq().obj(
      this.key('p').int(),
      this.key('q').int(),
      this.key('g').int()
    ).optional()
  )
})

var PrivateKeyInfo = asn1.define('PrivateKeyInfo', function () {
  this.seq().obj(
    this.key('version').int(),
    this.key('algorithm').use(AlgorithmIdentifier),
    this.key('subjectPrivateKey').octstr()
  )
})
exports.PrivateKey = PrivateKeyInfo
var EncryptedPrivateKeyInfo = asn1.define('EncryptedPrivateKeyInfo', function () {
  this.seq().obj(
    this.key('algorithm').seq().obj(
      this.key('id').objid(),
      this.key('decrypt').seq().obj(
        this.key('kde').seq().obj(
          this.key('id').objid(),
          this.key('kdeparams').seq().obj(
            this.key('salt').octstr(),
            this.key('iters').int()
          )
        ),
        this.key('cipher').seq().obj(
          this.key('algo').objid(),
          this.key('iv').octstr()
        )
      )
    ),
    this.key('subjectPrivateKey').octstr()
  )
})

exports.EncryptedPrivateKey = EncryptedPrivateKeyInfo

var DSAPrivateKey = asn1.define('DSAPrivateKey', function () {
  this.seq().obj(
    this.key('version').int(),
    this.key('p').int(),
    this.key('q').int(),
    this.key('g').int(),
    this.key('pub_key').int(),
    this.key('priv_key').int()
  )
})
exports.DSAPrivateKey = DSAPrivateKey

exports.DSAparam = asn1.define('DSAparam', function () {
  this.int()
})
var ECPrivateKey = asn1.define('ECPrivateKey', function () {
  this.seq().obj(
    this.key('version').int(),
    this.key('privateKey').octstr(),
    this.key('parameters').optional().explicit(0).use(ECParameters),
    this.key('publicKey').optional().explicit(1).bitstr()
  )
})
exports.ECPrivateKey = ECPrivateKey
var ECParameters = asn1.define('ECParameters', function () {
  this.choice({
    namedCurve: this.objid()
  })
})

exports.signature = asn1.define('signature', function () {
  this.seq().obj(
    this.key('r').int(),
    this.key('s').int()
  )
})

},{"asn1.js":49}],147:[function(require,module,exports){
(function (Buffer){
// adapted from https://github.com/apatil/pemstrip
var findProc = /Proc-Type: 4,ENCRYPTED\r?\nDEK-Info: AES-((?:128)|(?:192)|(?:256))-CBC,([0-9A-H]+)\r?\n\r?\n([0-9A-z\n\r\+\/\=]+)\r?\n/m
var startRegex = /^-----BEGIN (.*) KEY-----\r?\n/m
var fullRegex = /^-----BEGIN (.*) KEY-----\r?\n([0-9A-z\n\r\+\/\=]+)\r?\n-----END \1 KEY-----$/m
var evp = require('evp_bytestokey')
var ciphers = require('browserify-aes')
module.exports = function (okey, password) {
  var key = okey.toString()
  var match = key.match(findProc)
  var decrypted
  if (!match) {
    var match2 = key.match(fullRegex)
    decrypted = new Buffer(match2[2].replace(/\r?\n/g, ''), 'base64')
  } else {
    var suite = 'aes' + match[1]
    var iv = new Buffer(match[2], 'hex')
    var cipherText = new Buffer(match[3].replace(/\r?\n/g, ''), 'base64')
    var cipherKey = evp(password, iv.slice(0, 8), parseInt(match[1], 10)).key
    var out = []
    var cipher = ciphers.createDecipheriv(suite, cipherKey, iv)
    out.push(cipher.update(cipherText))
    out.push(cipher.final())
    decrypted = Buffer.concat(out)
  }
  var tag = key.match(startRegex)[1] + ' KEY'
  return {
    tag: tag,
    data: decrypted
  }
}

}).call(this,require("buffer").Buffer)
},{"browserify-aes":70,"buffer":95,"evp_bytestokey":136}],148:[function(require,module,exports){
(function (Buffer){
var asn1 = require('./asn1')
var aesid = require('./aesid.json')
var fixProc = require('./fixProc')
var ciphers = require('browserify-aes')
var compat = require('pbkdf2')
module.exports = parseKeys

function parseKeys (buffer) {
  var password
  if (typeof buffer === 'object' && !Buffer.isBuffer(buffer)) {
    password = buffer.passphrase
    buffer = buffer.key
  }
  if (typeof buffer === 'string') {
    buffer = new Buffer(buffer)
  }

  var stripped = fixProc(buffer, password)

  var type = stripped.tag
  var data = stripped.data
  var subtype, ndata
  switch (type) {
    case 'PUBLIC KEY':
      ndata = asn1.PublicKey.decode(data, 'der')
      subtype = ndata.algorithm.algorithm.join('.')
      switch (subtype) {
        case '1.2.840.113549.1.1.1':
          return asn1.RSAPublicKey.decode(ndata.subjectPublicKey.data, 'der')
        case '1.2.840.10045.2.1':
          ndata.subjectPrivateKey = ndata.subjectPublicKey
          return {
            type: 'ec',
            data: ndata
          }
        case '1.2.840.10040.4.1':
          ndata.algorithm.params.pub_key = asn1.DSAparam.decode(ndata.subjectPublicKey.data, 'der')
          return {
            type: 'dsa',
            data: ndata.algorithm.params
          }
        default: throw new Error('unknown key id ' + subtype)
      }
      throw new Error('unknown key type ' + type)
    case 'ENCRYPTED PRIVATE KEY':
      data = asn1.EncryptedPrivateKey.decode(data, 'der')
      data = decrypt(data, password)
      // falls through
    case 'PRIVATE KEY':
      ndata = asn1.PrivateKey.decode(data, 'der')
      subtype = ndata.algorithm.algorithm.join('.')
      switch (subtype) {
        case '1.2.840.113549.1.1.1':
          return asn1.RSAPrivateKey.decode(ndata.subjectPrivateKey, 'der')
        case '1.2.840.10045.2.1':
          return {
            curve: ndata.algorithm.curve,
            privateKey: asn1.ECPrivateKey.decode(ndata.subjectPrivateKey, 'der').privateKey
          }
        case '1.2.840.10040.4.1':
          ndata.algorithm.params.priv_key = asn1.DSAparam.decode(ndata.subjectPrivateKey, 'der')
          return {
            type: 'dsa',
            params: ndata.algorithm.params
          }
        default: throw new Error('unknown key id ' + subtype)
      }
      throw new Error('unknown key type ' + type)
    case 'RSA PUBLIC KEY':
      return asn1.RSAPublicKey.decode(data, 'der')
    case 'RSA PRIVATE KEY':
      return asn1.RSAPrivateKey.decode(data, 'der')
    case 'DSA PRIVATE KEY':
      return {
        type: 'dsa',
        params: asn1.DSAPrivateKey.decode(data, 'der')
      }
    case 'EC PRIVATE KEY':
      data = asn1.ECPrivateKey.decode(data, 'der')
      return {
        curve: data.parameters.value,
        privateKey: data.privateKey
      }
    default: throw new Error('unknown key type ' + type)
  }
}
parseKeys.signature = asn1.signature
function decrypt (data, password) {
  var salt = data.algorithm.decrypt.kde.kdeparams.salt
  var iters = parseInt(data.algorithm.decrypt.kde.kdeparams.iters.toString(), 10)
  var algo = aesid[data.algorithm.decrypt.cipher.algo.join('.')]
  var iv = data.algorithm.decrypt.cipher.iv
  var cipherText = data.subjectPrivateKey
  var keylen = parseInt(algo.split('-')[1], 10) / 8
  var key = compat.pbkdf2Sync(password, salt, iters, keylen)
  var cipher = ciphers.createDecipheriv(algo, key, iv)
  var out = []
  out.push(cipher.update(cipherText))
  out.push(cipher.final())
  return Buffer.concat(out)
}

}).call(this,require("buffer").Buffer)
},{"./aesid.json":145,"./asn1":146,"./fixProc":147,"browserify-aes":70,"buffer":95,"pbkdf2":149}],149:[function(require,module,exports){
(function (process,Buffer){
var createHmac = require('create-hmac')
var checkParameters = require('./precondition')

exports.pbkdf2 = function (password, salt, iterations, keylen, digest, callback) {
  if (typeof digest === 'function') {
    callback = digest
    digest = undefined
  }

  checkParameters(iterations, keylen)
  if (typeof callback !== 'function') throw new Error('No callback provided to pbkdf2')

  setTimeout(function () {
    callback(null, exports.pbkdf2Sync(password, salt, iterations, keylen, digest))
  })
}

var defaultEncoding
if (process.browser) {
  defaultEncoding = 'utf-8'
} else {
  var pVersionMajor = parseInt(process.version.split('.')[0].slice(1), 10)

  defaultEncoding = pVersionMajor >= 6 ? 'utf-8' : 'binary'
}

exports.pbkdf2Sync = function (password, salt, iterations, keylen, digest) {
  if (!Buffer.isBuffer(password)) password = new Buffer(password, defaultEncoding)
  if (!Buffer.isBuffer(salt)) salt = new Buffer(salt, defaultEncoding)

  checkParameters(iterations, keylen)

  digest = digest || 'sha1'

  var hLen
  var l = 1
  var DK = new Buffer(keylen)
  var block1 = new Buffer(salt.length + 4)
  salt.copy(block1, 0, 0, salt.length)

  var r
  var T

  for (var i = 1; i <= l; i++) {
    block1.writeUInt32BE(i, salt.length)
    var U = createHmac(digest, password).update(block1).digest()

    if (!hLen) {
      hLen = U.length
      T = new Buffer(hLen)
      l = Math.ceil(keylen / hLen)
      r = keylen - (l - 1) * hLen
    }

    U.copy(T, 0, 0, hLen)

    for (var j = 1; j < iterations; j++) {
      U = createHmac(digest, password).update(U).digest()
      for (var k = 0; k < hLen; k++) T[k] ^= U[k]
    }

    var destPos = (i - 1) * hLen
    var len = (i === l ? r : hLen)
    T.copy(DK, destPos, 0, len)
  }

  return DK
}

}).call(this,require('_process'),require("buffer").Buffer)
},{"./precondition":150,"_process":152,"buffer":95,"create-hmac":102}],150:[function(require,module,exports){
var MAX_ALLOC = Math.pow(2, 30) - 1 // default in iojs
module.exports = function (iterations, keylen) {
  if (typeof iterations !== 'number') {
    throw new TypeError('Iterations not a number')
  }

  if (iterations < 0) {
    throw new TypeError('Bad iterations')
  }

  if (typeof keylen !== 'number') {
    throw new TypeError('Key length not a number')
  }

  if (keylen < 0 || keylen > MAX_ALLOC || keylen !== keylen) { /* eslint no-self-compare: 0 */
    throw new TypeError('Bad key length')
  }
}

},{}],151:[function(require,module,exports){
(function (process){
'use strict';

if (!process.version ||
    process.version.indexOf('v0.') === 0 ||
    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
  module.exports = nextTick;
} else {
  module.exports = process.nextTick;
}

function nextTick(fn, arg1, arg2, arg3) {
  if (typeof fn !== 'function') {
    throw new TypeError('"callback" argument must be a function');
  }
  var len = arguments.length;
  var args, i;
  switch (len) {
  case 0:
  case 1:
    return process.nextTick(fn);
  case 2:
    return process.nextTick(function afterTickOne() {
      fn.call(null, arg1);
    });
  case 3:
    return process.nextTick(function afterTickTwo() {
      fn.call(null, arg1, arg2);
    });
  case 4:
    return process.nextTick(function afterTickThree() {
      fn.call(null, arg1, arg2, arg3);
    });
  default:
    args = new Array(len - 1);
    i = 0;
    while (i < args.length) {
      args[i++] = arguments[i];
    }
    return process.nextTick(function afterTick() {
      fn.apply(null, args);
    });
  }
}

}).call(this,require('_process'))
},{"_process":152}],152:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};

// cached from whatever global is present so that test runners that stub it
// don't break things.  But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals.  It's inside a
// function because try/catches deoptimize in certain engines.

var cachedSetTimeout;
var cachedClearTimeout;

function defaultSetTimout() {
    throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
    throw new Error('clearTimeout has not been defined');
}
(function () {
    try {
        if (typeof setTimeout === 'function') {
            cachedSetTimeout = setTimeout;
        } else {
            cachedSetTimeout = defaultSetTimout;
        }
    } catch (e) {
        cachedSetTimeout = defaultSetTimout;
    }
    try {
        if (typeof clearTimeout === 'function') {
            cachedClearTimeout = clearTimeout;
        } else {
            cachedClearTimeout = defaultClearTimeout;
        }
    } catch (e) {
        cachedClearTimeout = defaultClearTimeout;
    }
} ())
function runTimeout(fun) {
    if (cachedSetTimeout === setTimeout) {
        //normal enviroments in sane situations
        return setTimeout(fun, 0);
    }
    // if setTimeout wasn't available but was latter defined
    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
        cachedSetTimeout = setTimeout;
        return setTimeout(fun, 0);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedSetTimeout(fun, 0);
    } catch(e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
            return cachedSetTimeout.call(null, fun, 0);
        } catch(e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
            return cachedSetTimeout.call(this, fun, 0);
        }
    }


}
function runClearTimeout(marker) {
    if (cachedClearTimeout === clearTimeout) {
        //normal enviroments in sane situations
        return clearTimeout(marker);
    }
    // if clearTimeout wasn't available but was latter defined
    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
        cachedClearTimeout = clearTimeout;
        return clearTimeout(marker);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedClearTimeout(marker);
    } catch (e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
            return cachedClearTimeout.call(null, marker);
        } catch (e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
            return cachedClearTimeout.call(this, marker);
        }
    }



}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    if (!draining || !currentQueue) {
        return;
    }
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = runTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            if (currentQueue) {
                currentQueue[queueIndex].run();
            }
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    runClearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        runTimeout(drainQueue);
    }
};

// v8 likes predictible objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],153:[function(require,module,exports){
exports.publicEncrypt = require('./publicEncrypt');
exports.privateDecrypt = require('./privateDecrypt');

exports.privateEncrypt = function privateEncrypt(key, buf) {
  return exports.publicEncrypt(key, buf, true);
};

exports.publicDecrypt = function publicDecrypt(key, buf) {
  return exports.privateDecrypt(key, buf, true);
};
},{"./privateDecrypt":155,"./publicEncrypt":156}],154:[function(require,module,exports){
(function (Buffer){
var createHash = require('create-hash');
module.exports = function (seed, len) {
  var t = new Buffer('');
  var  i = 0, c;
  while (t.length < len) {
    c = i2ops(i++);
    t = Buffer.concat([t, createHash('sha1').update(seed).update(c).digest()]);
  }
  return t.slice(0, len);
};

function i2ops(c) {
  var out = new Buffer(4);
  out.writeUInt32BE(c,0);
  return out;
}
}).call(this,require("buffer").Buffer)
},{"buffer":95,"create-hash":99}],155:[function(require,module,exports){
(function (Buffer){
var parseKeys = require('parse-asn1');
var mgf = require('./mgf');
var xor = require('./xor');
var bn = require('bn.js');
var crt = require('browserify-rsa');
var createHash = require('create-hash');
var withPublic = require('./withPublic');
module.exports = function privateDecrypt(private_key, enc, reverse) {
  var padding;
  if (private_key.padding) {
    padding = private_key.padding;
  } else if (reverse) {
    padding = 1;
  } else {
    padding = 4;
  }
  
  var key = parseKeys(private_key);
  var k = key.modulus.byteLength();
  if (enc.length > k || new bn(enc).cmp(key.modulus) >= 0) {
    throw new Error('decryption error');
  }
  var msg;
  if (reverse) {
    msg = withPublic(new bn(enc), key);
  } else {
    msg = crt(enc, key);
  }
  var zBuffer = new Buffer(k - msg.length);
  zBuffer.fill(0);
  msg = Buffer.concat([zBuffer, msg], k);
  if (padding === 4) {
    return oaep(key, msg);
  } else if (padding === 1) {
    return pkcs1(key, msg, reverse);
  } else if (padding === 3) {
    return msg;
  } else {
    throw new Error('unknown padding');
  }
};

function oaep(key, msg){
  var n = key.modulus;
  var k = key.modulus.byteLength();
  var mLen = msg.length;
  var iHash = createHash('sha1').update(new Buffer('')).digest();
  var hLen = iHash.length;
  var hLen2 = 2 * hLen;
  if (msg[0] !== 0) {
    throw new Error('decryption error');
  }
  var maskedSeed = msg.slice(1, hLen + 1);
  var maskedDb =  msg.slice(hLen + 1);
  var seed = xor(maskedSeed, mgf(maskedDb, hLen));
  var db = xor(maskedDb, mgf(seed, k - hLen - 1));
  if (compare(iHash, db.slice(0, hLen))) {
    throw new Error('decryption error');
  }
  var i = hLen;
  while (db[i] === 0) {
    i++;
  }
  if (db[i++] !== 1) {
    throw new Error('decryption error');
  }
  return db.slice(i);
}

function pkcs1(key, msg, reverse){
  var p1 = msg.slice(0, 2);
  var i = 2;
  var status = 0;
  while (msg[i++] !== 0) {
    if (i >= msg.length) {
      status++;
      break;
    }
  }
  var ps = msg.slice(2, i - 1);
  var p2 = msg.slice(i - 1, i);

  if ((p1.toString('hex') !== '0002' && !reverse) || (p1.toString('hex') !== '0001' && reverse)){
    status++;
  }
  if (ps.length < 8) {
    status++;
  }
  if (status) {
    throw new Error('decryption error');
  }
  return  msg.slice(i);
}
function compare(a, b){
  a = new Buffer(a);
  b = new Buffer(b);
  var dif = 0;
  var len = a.length;
  if (a.length !== b.length) {
    dif++;
    len = Math.min(a.length, b.length);
  }
  var i = -1;
  while (++i < len) {
    dif += (a[i] ^ b[i]);
  }
  return dif;
}
}).call(this,require("buffer").Buffer)
},{"./mgf":154,"./withPublic":157,"./xor":158,"bn.js":65,"browserify-rsa":86,"buffer":95,"create-hash":99,"parse-asn1":148}],156:[function(require,module,exports){
(function (Buffer){
var parseKeys = require('parse-asn1');
var randomBytes = require('randombytes');
var createHash = require('create-hash');
var mgf = require('./mgf');
var xor = require('./xor');
var bn = require('bn.js');
var withPublic = require('./withPublic');
var crt = require('browserify-rsa');

var constants = {
  RSA_PKCS1_OAEP_PADDING: 4,
  RSA_PKCS1_PADDIN: 1,
  RSA_NO_PADDING: 3
};

module.exports = function publicEncrypt(public_key, msg, reverse) {
  var padding;
  if (public_key.padding) {
    padding = public_key.padding;
  } else if (reverse) {
    padding = 1;
  } else {
    padding = 4;
  }
  var key = parseKeys(public_key);
  var paddedMsg;
  if (padding === 4) {
    paddedMsg = oaep(key, msg);
  } else if (padding === 1) {
    paddedMsg = pkcs1(key, msg, reverse);
  } else if (padding === 3) {
    paddedMsg = new bn(msg);
    if (paddedMsg.cmp(key.modulus) >= 0) {
      throw new Error('data too long for modulus');
    }
  } else {
    throw new Error('unknown padding');
  }
  if (reverse) {
    return crt(paddedMsg, key);
  } else {
    return withPublic(paddedMsg, key);
  }
};

function oaep(key, msg){
  var k = key.modulus.byteLength();
  var mLen = msg.length;
  var iHash = createHash('sha1').update(new Buffer('')).digest();
  var hLen = iHash.length;
  var hLen2 = 2 * hLen;
  if (mLen > k - hLen2 - 2) {
    throw new Error('message too long');
  }
  var ps = new Buffer(k - mLen - hLen2 - 2);
  ps.fill(0);
  var dblen = k - hLen - 1;
  var seed = randomBytes(hLen);
  var maskedDb = xor(Buffer.concat([iHash, ps, new Buffer([1]), msg], dblen), mgf(seed, dblen));
  var maskedSeed = xor(seed, mgf(maskedDb, hLen));
  return new bn(Buffer.concat([new Buffer([0]), maskedSeed, maskedDb], k));
}
function pkcs1(key, msg, reverse){
  var mLen = msg.length;
  var k = key.modulus.byteLength();
  if (mLen > k - 11) {
    throw new Error('message too long');
  }
  var ps;
  if (reverse) {
    ps = new Buffer(k - mLen - 3);
    ps.fill(0xff);
  } else {
    ps = nonZero(k - mLen - 3);
  }
  return new bn(Buffer.concat([new Buffer([0, reverse?1:2]), ps, new Buffer([0]), msg], k));
}
function nonZero(len, crypto) {
  var out = new Buffer(len);
  var i = 0;
  var cache = randomBytes(len*2);
  var cur = 0;
  var num;
  while (i < len) {
    if (cur === cache.length) {
      cache = randomBytes(len*2);
      cur = 0;
    }
    num = cache[cur++];
    if (num) {
      out[i++] = num;
    }
  }
  return out;
}
}).call(this,require("buffer").Buffer)
},{"./mgf":154,"./withPublic":157,"./xor":158,"bn.js":65,"browserify-rsa":86,"buffer":95,"create-hash":99,"parse-asn1":148,"randombytes":163}],157:[function(require,module,exports){
(function (Buffer){
var bn = require('bn.js');
function withPublic(paddedMsg, key) {
  return new Buffer(paddedMsg
    .toRed(bn.mont(key.modulus))
    .redPow(new bn(key.publicExponent))
    .fromRed()
    .toArray());
}

module.exports = withPublic;
}).call(this,require("buffer").Buffer)
},{"bn.js":65,"buffer":95}],158:[function(require,module,exports){
module.exports = function xor(a, b) {
  var len = a.length;
  var i = -1;
  while (++i < len) {
    a[i] ^= b[i];
  }
  return a
};
},{}],159:[function(require,module,exports){
(function (global){
/*! https://mths.be/punycode v1.4.1 by @mathias */
;(function(root) {

	/** Detect free variables */
	var freeExports = typeof exports == 'object' && exports &&
		!exports.nodeType && exports;
	var freeModule = typeof module == 'object' && module &&
		!module.nodeType && module;
	var freeGlobal = typeof global == 'object' && global;
	if (
		freeGlobal.global === freeGlobal ||
		freeGlobal.window === freeGlobal ||
		freeGlobal.self === freeGlobal
	) {
		root = freeGlobal;
	}

	/**
	 * The `punycode` object.
	 * @name punycode
	 * @type Object
	 */
	var punycode,

	/** Highest positive signed 32-bit float value */
	maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1

	/** Bootstring parameters */
	base = 36,
	tMin = 1,
	tMax = 26,
	skew = 38,
	damp = 700,
	initialBias = 72,
	initialN = 128, // 0x80
	delimiter = '-', // '\x2D'

	/** Regular expressions */
	regexPunycode = /^xn--/,
	regexNonASCII = /[^\x20-\x7E]/, // unprintable ASCII chars + non-ASCII chars
	regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g, // RFC 3490 separators

	/** Error messages */
	errors = {
		'overflow': 'Overflow: input needs wider integers to process',
		'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
		'invalid-input': 'Invalid input'
	},

	/** Convenience shortcuts */
	baseMinusTMin = base - tMin,
	floor = Math.floor,
	stringFromCharCode = String.fromCharCode,

	/** Temporary variable */
	key;

	/*--------------------------------------------------------------------------*/

	/**
	 * A generic error utility function.
	 * @private
	 * @param {String} type The error type.
	 * @returns {Error} Throws a `RangeError` with the applicable error message.
	 */
	function error(type) {
		throw new RangeError(errors[type]);
	}

	/**
	 * A generic `Array#map` utility function.
	 * @private
	 * @param {Array} array The array to iterate over.
	 * @param {Function} callback The function that gets called for every array
	 * item.
	 * @returns {Array} A new array of values returned by the callback function.
	 */
	function map(array, fn) {
		var length = array.length;
		var result = [];
		while (length--) {
			result[length] = fn(array[length]);
		}
		return result;
	}

	/**
	 * A simple `Array#map`-like wrapper to work with domain name strings or email
	 * addresses.
	 * @private
	 * @param {String} domain The domain name or email address.
	 * @param {Function} callback The function that gets called for every
	 * character.
	 * @returns {Array} A new string of characters returned by the callback
	 * function.
	 */
	function mapDomain(string, fn) {
		var parts = string.split('@');
		var result = '';
		if (parts.length > 1) {
			// In email addresses, only the domain name should be punycoded. Leave
			// the local part (i.e. everything up to `@`) intact.
			result = parts[0] + '@';
			string = parts[1];
		}
		// Avoid `split(regex)` for IE8 compatibility. See #17.
		string = string.replace(regexSeparators, '\x2E');
		var labels = string.split('.');
		var encoded = map(labels, fn).join('.');
		return result + encoded;
	}

	/**
	 * Creates an array containing the numeric code points of each Unicode
	 * character in the string. While JavaScript uses UCS-2 internally,
	 * this function will convert a pair of surrogate halves (each of which
	 * UCS-2 exposes as separate characters) into a single code point,
	 * matching UTF-16.
	 * @see `punycode.ucs2.encode`
	 * @see <https://mathiasbynens.be/notes/javascript-encoding>
	 * @memberOf punycode.ucs2
	 * @name decode
	 * @param {String} string The Unicode input string (UCS-2).
	 * @returns {Array} The new array of code points.
	 */
	function ucs2decode(string) {
		var output = [],
		    counter = 0,
		    length = string.length,
		    value,
		    extra;
		while (counter < length) {
			value = string.charCodeAt(counter++);
			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
				// high surrogate, and there is a next character
				extra = string.charCodeAt(counter++);
				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
				} else {
					// unmatched surrogate; only append this code unit, in case the next
					// code unit is the high surrogate of a surrogate pair
					output.push(value);
					counter--;
				}
			} else {
				output.push(value);
			}
		}
		return output;
	}

	/**
	 * Creates a string based on an array of numeric code points.
	 * @see `punycode.ucs2.decode`
	 * @memberOf punycode.ucs2
	 * @name encode
	 * @param {Array} codePoints The array of numeric code points.
	 * @returns {String} The new Unicode string (UCS-2).
	 */
	function ucs2encode(array) {
		return map(array, function(value) {
			var output = '';
			if (value > 0xFFFF) {
				value -= 0x10000;
				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
				value = 0xDC00 | value & 0x3FF;
			}
			output += stringFromCharCode(value);
			return output;
		}).join('');
	}

	/**
	 * Converts a basic code point into a digit/integer.
	 * @see `digitToBasic()`
	 * @private
	 * @param {Number} codePoint The basic numeric code point value.
	 * @returns {Number} The numeric value of a basic code point (for use in
	 * representing integers) in the range `0` to `base - 1`, or `base` if
	 * the code point does not represent a value.
	 */
	function basicToDigit(codePoint) {
		if (codePoint - 48 < 10) {
			return codePoint - 22;
		}
		if (codePoint - 65 < 26) {
			return codePoint - 65;
		}
		if (codePoint - 97 < 26) {
			return codePoint - 97;
		}
		return base;
	}

	/**
	 * Converts a digit/integer into a basic code point.
	 * @see `basicToDigit()`
	 * @private
	 * @param {Number} digit The numeric value of a basic code point.
	 * @returns {Number} The basic code point whose value (when used for
	 * representing integers) is `digit`, which needs to be in the range
	 * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
	 * used; else, the lowercase form is used. The behavior is undefined
	 * if `flag` is non-zero and `digit` has no uppercase form.
	 */
	function digitToBasic(digit, flag) {
		//  0..25 map to ASCII a..z or A..Z
		// 26..35 map to ASCII 0..9
		return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
	}

	/**
	 * Bias adaptation function as per section 3.4 of RFC 3492.
	 * https://tools.ietf.org/html/rfc3492#section-3.4
	 * @private
	 */
	function adapt(delta, numPoints, firstTime) {
		var k = 0;
		delta = firstTime ? floor(delta / damp) : delta >> 1;
		delta += floor(delta / numPoints);
		for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
			delta = floor(delta / baseMinusTMin);
		}
		return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
	}

	/**
	 * Converts a Punycode string of ASCII-only symbols to a string of Unicode
	 * symbols.
	 * @memberOf punycode
	 * @param {String} input The Punycode string of ASCII-only symbols.
	 * @returns {String} The resulting string of Unicode symbols.
	 */
	function decode(input) {
		// Don't use UCS-2
		var output = [],
		    inputLength = input.length,
		    out,
		    i = 0,
		    n = initialN,
		    bias = initialBias,
		    basic,
		    j,
		    index,
		    oldi,
		    w,
		    k,
		    digit,
		    t,
		    /** Cached calculation results */
		    baseMinusT;

		// Handle the basic code points: let `basic` be the number of input code
		// points before the last delimiter, or `0` if there is none, then copy
		// the first basic code points to the output.

		basic = input.lastIndexOf(delimiter);
		if (basic < 0) {
			basic = 0;
		}

		for (j = 0; j < basic; ++j) {
			// if it's not a basic code point
			if (input.charCodeAt(j) >= 0x80) {
				error('not-basic');
			}
			output.push(input.charCodeAt(j));
		}

		// Main decoding loop: start just after the last delimiter if any basic code
		// points were copied; start at the beginning otherwise.

		for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {

			// `index` is the index of the next character to be consumed.
			// Decode a generalized variable-length integer into `delta`,
			// which gets added to `i`. The overflow checking is easier
			// if we increase `i` as we go, then subtract off its starting
			// value at the end to obtain `delta`.
			for (oldi = i, w = 1, k = base; /* no condition */; k += base) {

				if (index >= inputLength) {
					error('invalid-input');
				}

				digit = basicToDigit(input.charCodeAt(index++));

				if (digit >= base || digit > floor((maxInt - i) / w)) {
					error('overflow');
				}

				i += digit * w;
				t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);

				if (digit < t) {
					break;
				}

				baseMinusT = base - t;
				if (w > floor(maxInt / baseMinusT)) {
					error('overflow');
				}

				w *= baseMinusT;

			}

			out = output.length + 1;
			bias = adapt(i - oldi, out, oldi == 0);

			// `i` was supposed to wrap around from `out` to `0`,
			// incrementing `n` each time, so we'll fix that now:
			if (floor(i / out) > maxInt - n) {
				error('overflow');
			}

			n += floor(i / out);
			i %= out;

			// Insert `n` at position `i` of the output
			output.splice(i++, 0, n);

		}

		return ucs2encode(output);
	}

	/**
	 * Converts a string of Unicode symbols (e.g. a domain name label) to a
	 * Punycode string of ASCII-only symbols.
	 * @memberOf punycode
	 * @param {String} input The string of Unicode symbols.
	 * @returns {String} The resulting Punycode string of ASCII-only symbols.
	 */
	function encode(input) {
		var n,
		    delta,
		    handledCPCount,
		    basicLength,
		    bias,
		    j,
		    m,
		    q,
		    k,
		    t,
		    currentValue,
		    output = [],
		    /** `inputLength` will hold the number of code points in `input`. */
		    inputLength,
		    /** Cached calculation results */
		    handledCPCountPlusOne,
		    baseMinusT,
		    qMinusT;

		// Convert the input in UCS-2 to Unicode
		input = ucs2decode(input);

		// Cache the length
		inputLength = input.length;

		// Initialize the state
		n = initialN;
		delta = 0;
		bias = initialBias;

		// Handle the basic code points
		for (j = 0; j < inputLength; ++j) {
			currentValue = input[j];
			if (currentValue < 0x80) {
				output.push(stringFromCharCode(currentValue));
			}
		}

		handledCPCount = basicLength = output.length;

		// `handledCPCount` is the number of code points that have been handled;
		// `basicLength` is the number of basic code points.

		// Finish the basic string - if it is not empty - with a delimiter
		if (basicLength) {
			output.push(delimiter);
		}

		// Main encoding loop:
		while (handledCPCount < inputLength) {

			// All non-basic code points < n have been handled already. Find the next
			// larger one:
			for (m = maxInt, j = 0; j < inputLength; ++j) {
				currentValue = input[j];
				if (currentValue >= n && currentValue < m) {
					m = currentValue;
				}
			}

			// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
			// but guard against overflow
			handledCPCountPlusOne = handledCPCount + 1;
			if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
				error('overflow');
			}

			delta += (m - n) * handledCPCountPlusOne;
			n = m;

			for (j = 0; j < inputLength; ++j) {
				currentValue = input[j];

				if (currentValue < n && ++delta > maxInt) {
					error('overflow');
				}

				if (currentValue == n) {
					// Represent delta as a generalized variable-length integer
					for (q = delta, k = base; /* no condition */; k += base) {
						t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
						if (q < t) {
							break;
						}
						qMinusT = q - t;
						baseMinusT = base - t;
						output.push(
							stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
						);
						q = floor(qMinusT / baseMinusT);
					}

					output.push(stringFromCharCode(digitToBasic(q, 0)));
					bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
					delta = 0;
					++handledCPCount;
				}
			}

			++delta;
			++n;

		}
		return output.join('');
	}

	/**
	 * Converts a Punycode string representing a domain name or an email address
	 * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
	 * it doesn't matter if you call it on a string that has already been
	 * converted to Unicode.
	 * @memberOf punycode
	 * @param {String} input The Punycoded domain name or email address to
	 * convert to Unicode.
	 * @returns {String} The Unicode representation of the given Punycode
	 * string.
	 */
	function toUnicode(input) {
		return mapDomain(input, function(string) {
			return regexPunycode.test(string)
				? decode(string.slice(4).toLowerCase())
				: string;
		});
	}

	/**
	 * Converts a Unicode string representing a domain name or an email address to
	 * Punycode. Only the non-ASCII parts of the domain name will be converted,
	 * i.e. it doesn't matter if you call it with a domain that's already in
	 * ASCII.
	 * @memberOf punycode
	 * @param {String} input The domain name or email address to convert, as a
	 * Unicode string.
	 * @returns {String} The Punycode representation of the given domain name or
	 * email address.
	 */
	function toASCII(input) {
		return mapDomain(input, function(string) {
			return regexNonASCII.test(string)
				? 'xn--' + encode(string)
				: string;
		});
	}

	/*--------------------------------------------------------------------------*/

	/** Define the public API */
	punycode = {
		/**
		 * A string representing the current Punycode.js version number.
		 * @memberOf punycode
		 * @type String
		 */
		'version': '1.4.1',
		/**
		 * An object of methods to convert from JavaScript's internal character
		 * representation (UCS-2) to Unicode code points, and back.
		 * @see <https://mathiasbynens.be/notes/javascript-encoding>
		 * @memberOf punycode
		 * @type Object
		 */
		'ucs2': {
			'decode': ucs2decode,
			'encode': ucs2encode
		},
		'decode': decode,
		'encode': encode,
		'toASCII': toASCII,
		'toUnicode': toUnicode
	};

	/** Expose `punycode` */
	// Some AMD build optimizers, like r.js, check for specific condition patterns
	// like the following:
	if (
		typeof define == 'function' &&
		typeof define.amd == 'object' &&
		define.amd
	) {
		define('punycode', function() {
			return punycode;
		});
	} else if (freeExports && freeModule) {
		if (module.exports == freeExports) {
			// in Node.js, io.js, or RingoJS v0.8.0+
			freeModule.exports = punycode;
		} else {
			// in Narwhal or RingoJS v0.7.0-
			for (key in punycode) {
				punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);
			}
		}
	} else {
		// in Rhino or a web browser
		root.punycode = punycode;
	}

}(this));

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],160:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

// If obj.hasOwnProperty has been overridden, then calling
// obj.hasOwnProperty(prop) will break.
// See: https://github.com/joyent/node/issues/1707
function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

module.exports = function(qs, sep, eq, options) {
  sep = sep || '&';
  eq = eq || '=';
  var obj = {};

  if (typeof qs !== 'string' || qs.length === 0) {
    return obj;
  }

  var regexp = /\+/g;
  qs = qs.split(sep);

  var maxKeys = 1000;
  if (options && typeof options.maxKeys === 'number') {
    maxKeys = options.maxKeys;
  }

  var len = qs.length;
  // maxKeys <= 0 means that we should not limit keys count
  if (maxKeys > 0 && len > maxKeys) {
    len = maxKeys;
  }

  for (var i = 0; i < len; ++i) {
    var x = qs[i].replace(regexp, '%20'),
        idx = x.indexOf(eq),
        kstr, vstr, k, v;

    if (idx >= 0) {
      kstr = x.substr(0, idx);
      vstr = x.substr(idx + 1);
    } else {
      kstr = x;
      vstr = '';
    }

    k = decodeURIComponent(kstr);
    v = decodeURIComponent(vstr);

    if (!hasOwnProperty(obj, k)) {
      obj[k] = v;
    } else if (isArray(obj[k])) {
      obj[k].push(v);
    } else {
      obj[k] = [obj[k], v];
    }
  }

  return obj;
};

var isArray = Array.isArray || function (xs) {
  return Object.prototype.toString.call(xs) === '[object Array]';
};

},{}],161:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

var stringifyPrimitive = function(v) {
  switch (typeof v) {
    case 'string':
      return v;

    case 'boolean':
      return v ? 'true' : 'false';

    case 'number':
      return isFinite(v) ? v : '';

    default:
      return '';
  }
};

module.exports = function(obj, sep, eq, name) {
  sep = sep || '&';
  eq = eq || '=';
  if (obj === null) {
    obj = undefined;
  }

  if (typeof obj === 'object') {
    return map(objectKeys(obj), function(k) {
      var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;
      if (isArray(obj[k])) {
        return map(obj[k], function(v) {
          return ks + encodeURIComponent(stringifyPrimitive(v));
        }).join(sep);
      } else {
        return ks + encodeURIComponent(stringifyPrimitive(obj[k]));
      }
    }).join(sep);

  }

  if (!name) return '';
  return encodeURIComponent(stringifyPrimitive(name)) + eq +
         encodeURIComponent(stringifyPrimitive(obj));
};

var isArray = Array.isArray || function (xs) {
  return Object.prototype.toString.call(xs) === '[object Array]';
};

function map (xs, f) {
  if (xs.map) return xs.map(f);
  var res = [];
  for (var i = 0; i < xs.length; i++) {
    res.push(f(xs[i], i));
  }
  return res;
}

var objectKeys = Object.keys || function (obj) {
  var res = [];
  for (var key in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, key)) res.push(key);
  }
  return res;
};

},{}],162:[function(require,module,exports){
'use strict';

exports.decode = exports.parse = require('./decode');
exports.encode = exports.stringify = require('./encode');

},{"./decode":160,"./encode":161}],163:[function(require,module,exports){
(function (process,global,Buffer){
'use strict'

function oldBrowser () {
  throw new Error('secure random number generation not supported by this browser\nuse chrome, FireFox or Internet Explorer 11')
}

var crypto = global.crypto || global.msCrypto

if (crypto && crypto.getRandomValues) {
  module.exports = randomBytes
} else {
  module.exports = oldBrowser
}

function randomBytes (size, cb) {
  // phantomjs needs to throw
  if (size > 65536) throw new Error('requested too many random bytes')
  // in case browserify  isn't using the Uint8Array version
  var rawBytes = new global.Uint8Array(size)

  // This will not work in older browsers.
  // See https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues
  if (size > 0) {  // getRandomValues fails on IE if size == 0
    crypto.getRandomValues(rawBytes)
  }
  // phantomjs doesn't like a buffer being passed here
  var bytes = new Buffer(rawBytes.buffer)

  if (typeof cb === 'function') {
    return process.nextTick(function () {
      cb(null, bytes)
    })
  }

  return bytes
}

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
},{"_process":152,"buffer":95}],164:[function(require,module,exports){
module.exports = require("./lib/_stream_duplex.js")

},{"./lib/_stream_duplex.js":165}],165:[function(require,module,exports){
// a duplex stream is just a stream that is both readable and writable.
// Since JS doesn't have multiple prototypal inheritance, this class
// prototypally inherits from Readable, and then parasitically from
// Writable.

'use strict';

/*<replacement>*/

var objectKeys = Object.keys || function (obj) {
  var keys = [];
  for (var key in obj) {
    keys.push(key);
  }return keys;
};
/*</replacement>*/

module.exports = Duplex;

/*<replacement>*/
var processNextTick = require('process-nextick-args');
/*</replacement>*/

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

var Readable = require('./_stream_readable');
var Writable = require('./_stream_writable');

util.inherits(Duplex, Readable);

var keys = objectKeys(Writable.prototype);
for (var v = 0; v < keys.length; v++) {
  var method = keys[v];
  if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
}

function Duplex(options) {
  if (!(this instanceof Duplex)) return new Duplex(options);

  Readable.call(this, options);
  Writable.call(this, options);

  if (options && options.readable === false) this.readable = false;

  if (options && options.writable === false) this.writable = false;

  this.allowHalfOpen = true;
  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;

  this.once('end', onend);
}

// the no-half-open enforcer
function onend() {
  // if we allow half-open state, or if the writable side ended,
  // then we're ok.
  if (this.allowHalfOpen || this._writableState.ended) return;

  // no more data can be written.
  // But allow more writes to happen in this tick.
  processNextTick(onEndNT, this);
}

function onEndNT(self) {
  self.end();
}

function forEach(xs, f) {
  for (var i = 0, l = xs.length; i < l; i++) {
    f(xs[i], i);
  }
}
},{"./_stream_readable":167,"./_stream_writable":169,"core-util-is":97,"inherits":139,"process-nextick-args":151}],166:[function(require,module,exports){
// a passthrough stream.
// basically just the most minimal sort of Transform stream.
// Every written chunk gets output as-is.

'use strict';

module.exports = PassThrough;

var Transform = require('./_stream_transform');

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

util.inherits(PassThrough, Transform);

function PassThrough(options) {
  if (!(this instanceof PassThrough)) return new PassThrough(options);

  Transform.call(this, options);
}

PassThrough.prototype._transform = function (chunk, encoding, cb) {
  cb(null, chunk);
};
},{"./_stream_transform":168,"core-util-is":97,"inherits":139}],167:[function(require,module,exports){
(function (process){
'use strict';

module.exports = Readable;

/*<replacement>*/
var processNextTick = require('process-nextick-args');
/*</replacement>*/

/*<replacement>*/
var isArray = require('isarray');
/*</replacement>*/

/*<replacement>*/
var Buffer = require('buffer').Buffer;
/*</replacement>*/

Readable.ReadableState = ReadableState;

var EE = require('events');

/*<replacement>*/
var EElistenerCount = function (emitter, type) {
  return emitter.listeners(type).length;
};
/*</replacement>*/

/*<replacement>*/
var Stream;
(function () {
  try {
    Stream = require('st' + 'ream');
  } catch (_) {} finally {
    if (!Stream) Stream = require('events').EventEmitter;
  }
})();
/*</replacement>*/

var Buffer = require('buffer').Buffer;

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

/*<replacement>*/
var debugUtil = require('util');
var debug = undefined;
if (debugUtil && debugUtil.debuglog) {
  debug = debugUtil.debuglog('stream');
} else {
  debug = function () {};
}
/*</replacement>*/

var StringDecoder;

util.inherits(Readable, Stream);

var Duplex;
function ReadableState(options, stream) {
  Duplex = Duplex || require('./_stream_duplex');

  options = options || {};

  // object stream flag. Used to make read(n) ignore n and to
  // make all the buffer merging and length checks go away
  this.objectMode = !!options.objectMode;

  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode;

  // the point at which it stops calling _read() to fill the buffer
  // Note: 0 is a valid value, means "don't call _read preemptively ever"
  var hwm = options.highWaterMark;
  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;

  // cast to ints.
  this.highWaterMark = ~ ~this.highWaterMark;

  this.buffer = [];
  this.length = 0;
  this.pipes = null;
  this.pipesCount = 0;
  this.flowing = null;
  this.ended = false;
  this.endEmitted = false;
  this.reading = false;

  // a flag to be able to tell if the onwrite cb is called immediately,
  // or on a later tick.  We set this to true at first, because any
  // actions that shouldn't happen until "later" should generally also
  // not happen before the first write call.
  this.sync = true;

  // whenever we return null, then we set a flag to say
  // that we're awaiting a 'readable' event emission.
  this.needReadable = false;
  this.emittedReadable = false;
  this.readableListening = false;
  this.resumeScheduled = false;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // when piping, we only care about 'readable' events that happen
  // after read()ing all the bytes and not getting any pushback.
  this.ranOut = false;

  // the number of writers that are awaiting a drain event in .pipe()s
  this.awaitDrain = 0;

  // if true, a maybeReadMore has been scheduled
  this.readingMore = false;

  this.decoder = null;
  this.encoding = null;
  if (options.encoding) {
    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
    this.decoder = new StringDecoder(options.encoding);
    this.encoding = options.encoding;
  }
}

var Duplex;
function Readable(options) {
  Duplex = Duplex || require('./_stream_duplex');

  if (!(this instanceof Readable)) return new Readable(options);

  this._readableState = new ReadableState(options, this);

  // legacy
  this.readable = true;

  if (options && typeof options.read === 'function') this._read = options.read;

  Stream.call(this);
}

// Manually shove something into the read() buffer.
// This returns true if the highWaterMark has not been hit yet,
// similar to how Writable.write() returns true if you should
// write() some more.
Readable.prototype.push = function (chunk, encoding) {
  var state = this._readableState;

  if (!state.objectMode && typeof chunk === 'string') {
    encoding = encoding || state.defaultEncoding;
    if (encoding !== state.encoding) {
      chunk = new Buffer(chunk, encoding);
      encoding = '';
    }
  }

  return readableAddChunk(this, state, chunk, encoding, false);
};

// Unshift should *always* be something directly out of read()
Readable.prototype.unshift = function (chunk) {
  var state = this._readableState;
  return readableAddChunk(this, state, chunk, '', true);
};

Readable.prototype.isPaused = function () {
  return this._readableState.flowing === false;
};

function readableAddChunk(stream, state, chunk, encoding, addToFront) {
  var er = chunkInvalid(state, chunk);
  if (er) {
    stream.emit('error', er);
  } else if (chunk === null) {
    state.reading = false;
    onEofChunk(stream, state);
  } else if (state.objectMode || chunk && chunk.length > 0) {
    if (state.ended && !addToFront) {
      var e = new Error('stream.push() after EOF');
      stream.emit('error', e);
    } else if (state.endEmitted && addToFront) {
      var e = new Error('stream.unshift() after end event');
      stream.emit('error', e);
    } else {
      var skipAdd;
      if (state.decoder && !addToFront && !encoding) {
        chunk = state.decoder.write(chunk);
        skipAdd = !state.objectMode && chunk.length === 0;
      }

      if (!addToFront) state.reading = false;

      // Don't add to the buffer if we've decoded to an empty string chunk and
      // we're not in object mode
      if (!skipAdd) {
        // if we want the data now, just emit it.
        if (state.flowing && state.length === 0 && !state.sync) {
          stream.emit('data', chunk);
          stream.read(0);
        } else {
          // update the buffer info.
          state.length += state.objectMode ? 1 : chunk.length;
          if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);

          if (state.needReadable) emitReadable(stream);
        }
      }

      maybeReadMore(stream, state);
    }
  } else if (!addToFront) {
    state.reading = false;
  }

  return needMoreData(state);
}

// if it's past the high water mark, we can push in some more.
// Also, if we have no data yet, we can stand some
// more bytes.  This is to work around cases where hwm=0,
// such as the repl.  Also, if the push() triggered a
// readable event, and the user called read(largeNumber) such that
// needReadable was set, then we ought to push more, so that another
// 'readable' event will be triggered.
function needMoreData(state) {
  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
}

// backwards compatibility.
Readable.prototype.setEncoding = function (enc) {
  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
  this._readableState.decoder = new StringDecoder(enc);
  this._readableState.encoding = enc;
  return this;
};

// Don't raise the hwm > 8MB
var MAX_HWM = 0x800000;
function computeNewHighWaterMark(n) {
  if (n >= MAX_HWM) {
    n = MAX_HWM;
  } else {
    // Get the next highest power of 2
    n--;
    n |= n >>> 1;
    n |= n >>> 2;
    n |= n >>> 4;
    n |= n >>> 8;
    n |= n >>> 16;
    n++;
  }
  return n;
}

function howMuchToRead(n, state) {
  if (state.length === 0 && state.ended) return 0;

  if (state.objectMode) return n === 0 ? 0 : 1;

  if (n === null || isNaN(n)) {
    // only flow one buffer at a time
    if (state.flowing && state.buffer.length) return state.buffer[0].length;else return state.length;
  }

  if (n <= 0) return 0;

  // If we're asking for more than the target buffer level,
  // then raise the water mark.  Bump up to the next highest
  // power of 2, to prevent increasing it excessively in tiny
  // amounts.
  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);

  // don't have that much.  return null, unless we've ended.
  if (n > state.length) {
    if (!state.ended) {
      state.needReadable = true;
      return 0;
    } else {
      return state.length;
    }
  }

  return n;
}

// you can override either this method, or the async _read(n) below.
Readable.prototype.read = function (n) {
  debug('read', n);
  var state = this._readableState;
  var nOrig = n;

  if (typeof n !== 'number' || n > 0) state.emittedReadable = false;

  // if we're doing read(0) to trigger a readable event, but we
  // already have a bunch of data in the buffer, then just trigger
  // the 'readable' event and move on.
  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
    debug('read: emitReadable', state.length, state.ended);
    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
    return null;
  }

  n = howMuchToRead(n, state);

  // if we've ended, and we're now clear, then finish it up.
  if (n === 0 && state.ended) {
    if (state.length === 0) endReadable(this);
    return null;
  }

  // All the actual chunk generation logic needs to be
  // *below* the call to _read.  The reason is that in certain
  // synthetic stream cases, such as passthrough streams, _read
  // may be a completely synchronous operation which may change
  // the state of the read buffer, providing enough data when
  // before there was *not* enough.
  //
  // So, the steps are:
  // 1. Figure out what the state of things will be after we do
  // a read from the buffer.
  //
  // 2. If that resulting state will trigger a _read, then call _read.
  // Note that this may be asynchronous, or synchronous.  Yes, it is
  // deeply ugly to write APIs this way, but that still doesn't mean
  // that the Readable class should behave improperly, as streams are
  // designed to be sync/async agnostic.
  // Take note if the _read call is sync or async (ie, if the read call
  // has returned yet), so that we know whether or not it's safe to emit
  // 'readable' etc.
  //
  // 3. Actually pull the requested chunks out of the buffer and return.

  // if we need a readable event, then we need to do some reading.
  var doRead = state.needReadable;
  debug('need readable', doRead);

  // if we currently have less than the highWaterMark, then also read some
  if (state.length === 0 || state.length - n < state.highWaterMark) {
    doRead = true;
    debug('length less than watermark', doRead);
  }

  // however, if we've ended, then there's no point, and if we're already
  // reading, then it's unnecessary.
  if (state.ended || state.reading) {
    doRead = false;
    debug('reading or ended', doRead);
  }

  if (doRead) {
    debug('do read');
    state.reading = true;
    state.sync = true;
    // if the length is currently zero, then we *need* a readable event.
    if (state.length === 0) state.needReadable = true;
    // call internal read method
    this._read(state.highWaterMark);
    state.sync = false;
  }

  // If _read pushed data synchronously, then `reading` will be false,
  // and we need to re-evaluate how much data we can return to the user.
  if (doRead && !state.reading) n = howMuchToRead(nOrig, state);

  var ret;
  if (n > 0) ret = fromList(n, state);else ret = null;

  if (ret === null) {
    state.needReadable = true;
    n = 0;
  }

  state.length -= n;

  // If we have nothing in the buffer, then we want to know
  // as soon as we *do* get something into the buffer.
  if (state.length === 0 && !state.ended) state.needReadable = true;

  // If we tried to read() past the EOF, then emit end on the next tick.
  if (nOrig !== n && state.ended && state.length === 0) endReadable(this);

  if (ret !== null) this.emit('data', ret);

  return ret;
};

function chunkInvalid(state, chunk) {
  var er = null;
  if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== null && chunk !== undefined && !state.objectMode) {
    er = new TypeError('Invalid non-string/buffer chunk');
  }
  return er;
}

function onEofChunk(stream, state) {
  if (state.ended) return;
  if (state.decoder) {
    var chunk = state.decoder.end();
    if (chunk && chunk.length) {
      state.buffer.push(chunk);
      state.length += state.objectMode ? 1 : chunk.length;
    }
  }
  state.ended = true;

  // emit 'readable' now to make sure it gets picked up.
  emitReadable(stream);
}

// Don't emit readable right away in sync mode, because this can trigger
// another read() call => stack overflow.  This way, it might trigger
// a nextTick recursion warning, but that's not so bad.
function emitReadable(stream) {
  var state = stream._readableState;
  state.needReadable = false;
  if (!state.emittedReadable) {
    debug('emitReadable', state.flowing);
    state.emittedReadable = true;
    if (state.sync) processNextTick(emitReadable_, stream);else emitReadable_(stream);
  }
}

function emitReadable_(stream) {
  debug('emit readable');
  stream.emit('readable');
  flow(stream);
}

// at this point, the user has presumably seen the 'readable' event,
// and called read() to consume some data.  that may have triggered
// in turn another _read(n) call, in which case reading = true if
// it's in progress.
// However, if we're not ended, or reading, and the length < hwm,
// then go ahead and try to read some more preemptively.
function maybeReadMore(stream, state) {
  if (!state.readingMore) {
    state.readingMore = true;
    processNextTick(maybeReadMore_, stream, state);
  }
}

function maybeReadMore_(stream, state) {
  var len = state.length;
  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
    debug('maybeReadMore read 0');
    stream.read(0);
    if (len === state.length)
      // didn't get any data, stop spinning.
      break;else len = state.length;
  }
  state.readingMore = false;
}

// abstract method.  to be overridden in specific implementation classes.
// call cb(er, data) where data is <= n in length.
// for virtual (non-string, non-buffer) streams, "length" is somewhat
// arbitrary, and perhaps not very meaningful.
Readable.prototype._read = function (n) {
  this.emit('error', new Error('not implemented'));
};

Readable.prototype.pipe = function (dest, pipeOpts) {
  var src = this;
  var state = this._readableState;

  switch (state.pipesCount) {
    case 0:
      state.pipes = dest;
      break;
    case 1:
      state.pipes = [state.pipes, dest];
      break;
    default:
      state.pipes.push(dest);
      break;
  }
  state.pipesCount += 1;
  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);

  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;

  var endFn = doEnd ? onend : cleanup;
  if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn);

  dest.on('unpipe', onunpipe);
  function onunpipe(readable) {
    debug('onunpipe');
    if (readable === src) {
      cleanup();
    }
  }

  function onend() {
    debug('onend');
    dest.end();
  }

  // when the dest drains, it reduces the awaitDrain counter
  // on the source.  This would be more elegant with a .once()
  // handler in flow(), but adding and removing repeatedly is
  // too slow.
  var ondrain = pipeOnDrain(src);
  dest.on('drain', ondrain);

  var cleanedUp = false;
  function cleanup() {
    debug('cleanup');
    // cleanup event handlers once the pipe is broken
    dest.removeListener('close', onclose);
    dest.removeListener('finish', onfinish);
    dest.removeListener('drain', ondrain);
    dest.removeListener('error', onerror);
    dest.removeListener('unpipe', onunpipe);
    src.removeListener('end', onend);
    src.removeListener('end', cleanup);
    src.removeListener('data', ondata);

    cleanedUp = true;

    // if the reader is waiting for a drain event from this
    // specific writer, then it would cause it to never start
    // flowing again.
    // So, if this is awaiting a drain, then we just call it now.
    // If we don't know, then assume that we are waiting for one.
    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
  }

  src.on('data', ondata);
  function ondata(chunk) {
    debug('ondata');
    var ret = dest.write(chunk);
    if (false === ret) {
      // If the user unpiped during `dest.write()`, it is possible
      // to get stuck in a permanently paused state if that write
      // also returned false.
      if (state.pipesCount === 1 && state.pipes[0] === dest && src.listenerCount('data') === 1 && !cleanedUp) {
        debug('false write response, pause', src._readableState.awaitDrain);
        src._readableState.awaitDrain++;
      }
      src.pause();
    }
  }

  // if the dest has an error, then stop piping into it.
  // however, don't suppress the throwing behavior for this.
  function onerror(er) {
    debug('onerror', er);
    unpipe();
    dest.removeListener('error', onerror);
    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
  }
  // This is a brutally ugly hack to make sure that our error handler
  // is attached before any userland ones.  NEVER DO THIS.
  if (!dest._events || !dest._events.error) dest.on('error', onerror);else if (isArray(dest._events.error)) dest._events.error.unshift(onerror);else dest._events.error = [onerror, dest._events.error];

  // Both close and finish should trigger unpipe, but only once.
  function onclose() {
    dest.removeListener('finish', onfinish);
    unpipe();
  }
  dest.once('close', onclose);
  function onfinish() {
    debug('onfinish');
    dest.removeListener('close', onclose);
    unpipe();
  }
  dest.once('finish', onfinish);

  function unpipe() {
    debug('unpipe');
    src.unpipe(dest);
  }

  // tell the dest that it's being piped to
  dest.emit('pipe', src);

  // start the flow if it hasn't been started already.
  if (!state.flowing) {
    debug('pipe resume');
    src.resume();
  }

  return dest;
};

function pipeOnDrain(src) {
  return function () {
    var state = src._readableState;
    debug('pipeOnDrain', state.awaitDrain);
    if (state.awaitDrain) state.awaitDrain--;
    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
      state.flowing = true;
      flow(src);
    }
  };
}

Readable.prototype.unpipe = function (dest) {
  var state = this._readableState;

  // if we're not piping anywhere, then do nothing.
  if (state.pipesCount === 0) return this;

  // just one destination.  most common case.
  if (state.pipesCount === 1) {
    // passed in one, but it's not the right one.
    if (dest && dest !== state.pipes) return this;

    if (!dest) dest = state.pipes;

    // got a match.
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;
    if (dest) dest.emit('unpipe', this);
    return this;
  }

  // slow case. multiple pipe destinations.

  if (!dest) {
    // remove all.
    var dests = state.pipes;
    var len = state.pipesCount;
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;

    for (var _i = 0; _i < len; _i++) {
      dests[_i].emit('unpipe', this);
    }return this;
  }

  // try to find the right one.
  var i = indexOf(state.pipes, dest);
  if (i === -1) return this;

  state.pipes.splice(i, 1);
  state.pipesCount -= 1;
  if (state.pipesCount === 1) state.pipes = state.pipes[0];

  dest.emit('unpipe', this);

  return this;
};

// set up data events if they are asked for
// Ensure readable listeners eventually get something
Readable.prototype.on = function (ev, fn) {
  var res = Stream.prototype.on.call(this, ev, fn);

  // If listening to data, and it has not explicitly been paused,
  // then call resume to start the flow of data on the next tick.
  if (ev === 'data' && false !== this._readableState.flowing) {
    this.resume();
  }

  if (ev === 'readable' && !this._readableState.endEmitted) {
    var state = this._readableState;
    if (!state.readableListening) {
      state.readableListening = true;
      state.emittedReadable = false;
      state.needReadable = true;
      if (!state.reading) {
        processNextTick(nReadingNextTick, this);
      } else if (state.length) {
        emitReadable(this, state);
      }
    }
  }

  return res;
};
Readable.prototype.addListener = Readable.prototype.on;

function nReadingNextTick(self) {
  debug('readable nexttick read 0');
  self.read(0);
}

// pause() and resume() are remnants of the legacy readable stream API
// If the user uses them, then switch into old mode.
Readable.prototype.resume = function () {
  var state = this._readableState;
  if (!state.flowing) {
    debug('resume');
    state.flowing = true;
    resume(this, state);
  }
  return this;
};

function resume(stream, state) {
  if (!state.resumeScheduled) {
    state.resumeScheduled = true;
    processNextTick(resume_, stream, state);
  }
}

function resume_(stream, state) {
  if (!state.reading) {
    debug('resume read 0');
    stream.read(0);
  }

  state.resumeScheduled = false;
  stream.emit('resume');
  flow(stream);
  if (state.flowing && !state.reading) stream.read(0);
}

Readable.prototype.pause = function () {
  debug('call pause flowing=%j', this._readableState.flowing);
  if (false !== this._readableState.flowing) {
    debug('pause');
    this._readableState.flowing = false;
    this.emit('pause');
  }
  return this;
};

function flow(stream) {
  var state = stream._readableState;
  debug('flow', state.flowing);
  if (state.flowing) {
    do {
      var chunk = stream.read();
    } while (null !== chunk && state.flowing);
  }
}

// wrap an old-style stream as the async data source.
// This is *not* part of the readable stream interface.
// It is an ugly unfortunate mess of history.
Readable.prototype.wrap = function (stream) {
  var state = this._readableState;
  var paused = false;

  var self = this;
  stream.on('end', function () {
    debug('wrapped end');
    if (state.decoder && !state.ended) {
      var chunk = state.decoder.end();
      if (chunk && chunk.length) self.push(chunk);
    }

    self.push(null);
  });

  stream.on('data', function (chunk) {
    debug('wrapped data');
    if (state.decoder) chunk = state.decoder.write(chunk);

    // don't skip over falsy values in objectMode
    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;

    var ret = self.push(chunk);
    if (!ret) {
      paused = true;
      stream.pause();
    }
  });

  // proxy all the other methods.
  // important when wrapping filters and duplexes.
  for (var i in stream) {
    if (this[i] === undefined && typeof stream[i] === 'function') {
      this[i] = function (method) {
        return function () {
          return stream[method].apply(stream, arguments);
        };
      }(i);
    }
  }

  // proxy certain important events.
  var events = ['error', 'close', 'destroy', 'pause', 'resume'];
  forEach(events, function (ev) {
    stream.on(ev, self.emit.bind(self, ev));
  });

  // when we try to consume some more bytes, simply unpause the
  // underlying stream.
  self._read = function (n) {
    debug('wrapped _read', n);
    if (paused) {
      paused = false;
      stream.resume();
    }
  };

  return self;
};

// exposed for testing purposes only.
Readable._fromList = fromList;

// Pluck off n bytes from an array of buffers.
// Length is the combined lengths of all the buffers in the list.
function fromList(n, state) {
  var list = state.buffer;
  var length = state.length;
  var stringMode = !!state.decoder;
  var objectMode = !!state.objectMode;
  var ret;

  // nothing in the list, definitely empty.
  if (list.length === 0) return null;

  if (length === 0) ret = null;else if (objectMode) ret = list.shift();else if (!n || n >= length) {
    // read it all, truncate the array.
    if (stringMode) ret = list.join('');else if (list.length === 1) ret = list[0];else ret = Buffer.concat(list, length);
    list.length = 0;
  } else {
    // read just some of it.
    if (n < list[0].length) {
      // just take a part of the first list item.
      // slice is the same for buffers and strings.
      var buf = list[0];
      ret = buf.slice(0, n);
      list[0] = buf.slice(n);
    } else if (n === list[0].length) {
      // first list is a perfect match
      ret = list.shift();
    } else {
      // complex case.
      // we have enough to cover it, but it spans past the first buffer.
      if (stringMode) ret = '';else ret = new Buffer(n);

      var c = 0;
      for (var i = 0, l = list.length; i < l && c < n; i++) {
        var buf = list[0];
        var cpy = Math.min(n - c, buf.length);

        if (stringMode) ret += buf.slice(0, cpy);else buf.copy(ret, c, 0, cpy);

        if (cpy < buf.length) list[0] = buf.slice(cpy);else list.shift();

        c += cpy;
      }
    }
  }

  return ret;
}

function endReadable(stream) {
  var state = stream._readableState;

  // If we get here before consuming all the bytes, then that is a
  // bug in node.  Should never happen.
  if (state.length > 0) throw new Error('endReadable called on non-empty stream');

  if (!state.endEmitted) {
    state.ended = true;
    processNextTick(endReadableNT, state, stream);
  }
}

function endReadableNT(state, stream) {
  // Check that we didn't get one last unshift.
  if (!state.endEmitted && state.length === 0) {
    state.endEmitted = true;
    stream.readable = false;
    stream.emit('end');
  }
}

function forEach(xs, f) {
  for (var i = 0, l = xs.length; i < l; i++) {
    f(xs[i], i);
  }
}

function indexOf(xs, x) {
  for (var i = 0, l = xs.length; i < l; i++) {
    if (xs[i] === x) return i;
  }
  return -1;
}
}).call(this,require('_process'))
},{"./_stream_duplex":165,"_process":152,"buffer":95,"core-util-is":97,"events":135,"inherits":139,"isarray":141,"process-nextick-args":151,"string_decoder/":190,"util":67}],168:[function(require,module,exports){
// a transform stream is a readable/writable stream where you do
// something with the data.  Sometimes it's called a "filter",
// but that's not a great name for it, since that implies a thing where
// some bits pass through, and others are simply ignored.  (That would
// be a valid example of a transform, of course.)
//
// While the output is causally related to the input, it's not a
// necessarily symmetric or synchronous transformation.  For example,
// a zlib stream might take multiple plain-text writes(), and then
// emit a single compressed chunk some time in the future.
//
// Here's how this works:
//
// The Transform stream has all the aspects of the readable and writable
// stream classes.  When you write(chunk), that calls _write(chunk,cb)
// internally, and returns false if there's a lot of pending writes
// buffered up.  When you call read(), that calls _read(n) until
// there's enough pending readable data buffered up.
//
// In a transform stream, the written data is placed in a buffer.  When
// _read(n) is called, it transforms the queued up data, calling the
// buffered _write cb's as it consumes chunks.  If consuming a single
// written chunk would result in multiple output chunks, then the first
// outputted bit calls the readcb, and subsequent chunks just go into
// the read buffer, and will cause it to emit 'readable' if necessary.
//
// This way, back-pressure is actually determined by the reading side,
// since _read has to be called to start processing a new chunk.  However,
// a pathological inflate type of transform can cause excessive buffering
// here.  For example, imagine a stream where every byte of input is
// interpreted as an integer from 0-255, and then results in that many
// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
// 1kb of data being output.  In this case, you could write a very small
// amount of input, and end up with a very large amount of output.  In
// such a pathological inflating mechanism, there'd be no way to tell
// the system to stop doing the transform.  A single 4MB write could
// cause the system to run out of memory.
//
// However, even in such a pathological case, only a single written chunk
// would be consumed, and then the rest would wait (un-transformed) until
// the results of the previous transformed chunk were consumed.

'use strict';

module.exports = Transform;

var Duplex = require('./_stream_duplex');

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

util.inherits(Transform, Duplex);

function TransformState(stream) {
  this.afterTransform = function (er, data) {
    return afterTransform(stream, er, data);
  };

  this.needTransform = false;
  this.transforming = false;
  this.writecb = null;
  this.writechunk = null;
  this.writeencoding = null;
}

function afterTransform(stream, er, data) {
  var ts = stream._transformState;
  ts.transforming = false;

  var cb = ts.writecb;

  if (!cb) return stream.emit('error', new Error('no writecb in Transform class'));

  ts.writechunk = null;
  ts.writecb = null;

  if (data !== null && data !== undefined) stream.push(data);

  cb(er);

  var rs = stream._readableState;
  rs.reading = false;
  if (rs.needReadable || rs.length < rs.highWaterMark) {
    stream._read(rs.highWaterMark);
  }
}

function Transform(options) {
  if (!(this instanceof Transform)) return new Transform(options);

  Duplex.call(this, options);

  this._transformState = new TransformState(this);

  // when the writable side finishes, then flush out anything remaining.
  var stream = this;

  // start out asking for a readable event once data is transformed.
  this._readableState.needReadable = true;

  // we have implemented the _read method, and done the other things
  // that Readable wants before the first _read call, so unset the
  // sync guard flag.
  this._readableState.sync = false;

  if (options) {
    if (typeof options.transform === 'function') this._transform = options.transform;

    if (typeof options.flush === 'function') this._flush = options.flush;
  }

  this.once('prefinish', function () {
    if (typeof this._flush === 'function') this._flush(function (er) {
      done(stream, er);
    });else done(stream);
  });
}

Transform.prototype.push = function (chunk, encoding) {
  this._transformState.needTransform = false;
  return Duplex.prototype.push.call(this, chunk, encoding);
};

// This is the part where you do stuff!
// override this function in implementation classes.
// 'chunk' is an input chunk.
//
// Call `push(newChunk)` to pass along transformed output
// to the readable side.  You may call 'push' zero or more times.
//
// Call `cb(err)` when you are done with this chunk.  If you pass
// an error, then that'll put the hurt on the whole operation.  If you
// never call cb(), then you'll never get another chunk.
Transform.prototype._transform = function (chunk, encoding, cb) {
  throw new Error('not implemented');
};

Transform.prototype._write = function (chunk, encoding, cb) {
  var ts = this._transformState;
  ts.writecb = cb;
  ts.writechunk = chunk;
  ts.writeencoding = encoding;
  if (!ts.transforming) {
    var rs = this._readableState;
    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
  }
};

// Doesn't matter what the args are here.
// _transform does all the work.
// That we got here means that the readable side wants more data.
Transform.prototype._read = function (n) {
  var ts = this._transformState;

  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
    ts.transforming = true;
    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
  } else {
    // mark that we need a transform, so that any data that comes in
    // will get processed, now that we've asked for it.
    ts.needTransform = true;
  }
};

function done(stream, er) {
  if (er) return stream.emit('error', er);

  // if there's nothing in the write buffer, then that means
  // that nothing more will ever be provided
  var ws = stream._writableState;
  var ts = stream._transformState;

  if (ws.length) throw new Error('calling transform done when ws.length != 0');

  if (ts.transforming) throw new Error('calling transform done when still transforming');

  return stream.push(null);
}
},{"./_stream_duplex":165,"core-util-is":97,"inherits":139}],169:[function(require,module,exports){
(function (process){
// A bit simpler than readable streams.
// Implement an async ._write(chunk, encoding, cb), and it'll handle all
// the drain event emission and buffering.

'use strict';

module.exports = Writable;

/*<replacement>*/
var processNextTick = require('process-nextick-args');
/*</replacement>*/

/*<replacement>*/
var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick;
/*</replacement>*/

/*<replacement>*/
var Buffer = require('buffer').Buffer;
/*</replacement>*/

Writable.WritableState = WritableState;

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

/*<replacement>*/
var internalUtil = {
  deprecate: require('util-deprecate')
};
/*</replacement>*/

/*<replacement>*/
var Stream;
(function () {
  try {
    Stream = require('st' + 'ream');
  } catch (_) {} finally {
    if (!Stream) Stream = require('events').EventEmitter;
  }
})();
/*</replacement>*/

var Buffer = require('buffer').Buffer;

util.inherits(Writable, Stream);

function nop() {}

function WriteReq(chunk, encoding, cb) {
  this.chunk = chunk;
  this.encoding = encoding;
  this.callback = cb;
  this.next = null;
}

var Duplex;
function WritableState(options, stream) {
  Duplex = Duplex || require('./_stream_duplex');

  options = options || {};

  // object stream flag to indicate whether or not this stream
  // contains buffers or objects.
  this.objectMode = !!options.objectMode;

  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode;

  // the point at which write() starts returning false
  // Note: 0 is a valid value, means that we always return false if
  // the entire buffer is not flushed immediately on write()
  var hwm = options.highWaterMark;
  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;

  // cast to ints.
  this.highWaterMark = ~ ~this.highWaterMark;

  this.needDrain = false;
  // at the start of calling end()
  this.ending = false;
  // when end() has been called, and returned
  this.ended = false;
  // when 'finish' is emitted
  this.finished = false;

  // should we decode strings into buffers before passing to _write?
  // this is here so that some node-core streams can optimize string
  // handling at a lower level.
  var noDecode = options.decodeStrings === false;
  this.decodeStrings = !noDecode;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // not an actual buffer we keep track of, but a measurement
  // of how much we're waiting to get pushed to some underlying
  // socket or file.
  this.length = 0;

  // a flag to see when we're in the middle of a write.
  this.writing = false;

  // when true all writes will be buffered until .uncork() call
  this.corked = 0;

  // a flag to be able to tell if the onwrite cb is called immediately,
  // or on a later tick.  We set this to true at first, because any
  // actions that shouldn't happen until "later" should generally also
  // not happen before the first write call.
  this.sync = true;

  // a flag to know if we're processing previously buffered items, which
  // may call the _write() callback in the same tick, so that we don't
  // end up in an overlapped onwrite situation.
  this.bufferProcessing = false;

  // the callback that's passed to _write(chunk,cb)
  this.onwrite = function (er) {
    onwrite(stream, er);
  };

  // the callback that the user supplies to write(chunk,encoding,cb)
  this.writecb = null;

  // the amount that is being written when _write is called.
  this.writelen = 0;

  this.bufferedRequest = null;
  this.lastBufferedRequest = null;

  // number of pending user-supplied write callbacks
  // this must be 0 before 'finish' can be emitted
  this.pendingcb = 0;

  // emit prefinish if the only thing we're waiting for is _write cbs
  // This is relevant for synchronous Transform streams
  this.prefinished = false;

  // True if the error was already emitted and should not be thrown again
  this.errorEmitted = false;

  // count buffered requests
  this.bufferedRequestCount = 0;

  // create the two objects needed to store the corked requests
  // they are not a linked list, as no new elements are inserted in there
  this.corkedRequestsFree = new CorkedRequest(this);
  this.corkedRequestsFree.next = new CorkedRequest(this);
}

WritableState.prototype.getBuffer = function writableStateGetBuffer() {
  var current = this.bufferedRequest;
  var out = [];
  while (current) {
    out.push(current);
    current = current.next;
  }
  return out;
};

(function () {
  try {
    Object.defineProperty(WritableState.prototype, 'buffer', {
      get: internalUtil.deprecate(function () {
        return this.getBuffer();
      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.')
    });
  } catch (_) {}
})();

var Duplex;
function Writable(options) {
  Duplex = Duplex || require('./_stream_duplex');

  // Writable ctor is applied to Duplexes, though they're not
  // instanceof Writable, they're instanceof Readable.
  if (!(this instanceof Writable) && !(this instanceof Duplex)) return new Writable(options);

  this._writableState = new WritableState(options, this);

  // legacy.
  this.writable = true;

  if (options) {
    if (typeof options.write === 'function') this._write = options.write;

    if (typeof options.writev === 'function') this._writev = options.writev;
  }

  Stream.call(this);
}

// Otherwise people can pipe Writable streams, which is just wrong.
Writable.prototype.pipe = function () {
  this.emit('error', new Error('Cannot pipe. Not readable.'));
};

function writeAfterEnd(stream, cb) {
  var er = new Error('write after end');
  // TODO: defer error events consistently everywhere, not just the cb
  stream.emit('error', er);
  processNextTick(cb, er);
}

// If we get something that is not a buffer, string, null, or undefined,
// and we're not in objectMode, then that's an error.
// Otherwise stream chunks are all considered to be of length=1, and the
// watermarks determine how many objects to keep in the buffer, rather than
// how many bytes or characters.
function validChunk(stream, state, chunk, cb) {
  var valid = true;

  if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== null && chunk !== undefined && !state.objectMode) {
    var er = new TypeError('Invalid non-string/buffer chunk');
    stream.emit('error', er);
    processNextTick(cb, er);
    valid = false;
  }
  return valid;
}

Writable.prototype.write = function (chunk, encoding, cb) {
  var state = this._writableState;
  var ret = false;

  if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (Buffer.isBuffer(chunk)) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;

  if (typeof cb !== 'function') cb = nop;

  if (state.ended) writeAfterEnd(this, cb);else if (validChunk(this, state, chunk, cb)) {
    state.pendingcb++;
    ret = writeOrBuffer(this, state, chunk, encoding, cb);
  }

  return ret;
};

Writable.prototype.cork = function () {
  var state = this._writableState;

  state.corked++;
};

Writable.prototype.uncork = function () {
  var state = this._writableState;

  if (state.corked) {
    state.corked--;

    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
  }
};

Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
  // node::ParseEncoding() requires lower case.
  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
  this._writableState.defaultEncoding = encoding;
};

function decodeChunk(state, chunk, encoding) {
  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
    chunk = new Buffer(chunk, encoding);
  }
  return chunk;
}

// if we're already writing something, then just put this
// in the queue, and wait our turn.  Otherwise, call _write
// If we return false, then we need a drain event, so set that flag.
function writeOrBuffer(stream, state, chunk, encoding, cb) {
  chunk = decodeChunk(state, chunk, encoding);

  if (Buffer.isBuffer(chunk)) encoding = 'buffer';
  var len = state.objectMode ? 1 : chunk.length;

  state.length += len;

  var ret = state.length < state.highWaterMark;
  // we must ensure that previous needDrain will not be reset to false.
  if (!ret) state.needDrain = true;

  if (state.writing || state.corked) {
    var last = state.lastBufferedRequest;
    state.lastBufferedRequest = new WriteReq(chunk, encoding, cb);
    if (last) {
      last.next = state.lastBufferedRequest;
    } else {
      state.bufferedRequest = state.lastBufferedRequest;
    }
    state.bufferedRequestCount += 1;
  } else {
    doWrite(stream, state, false, len, chunk, encoding, cb);
  }

  return ret;
}

function doWrite(stream, state, writev, len, chunk, encoding, cb) {
  state.writelen = len;
  state.writecb = cb;
  state.writing = true;
  state.sync = true;
  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
  state.sync = false;
}

function onwriteError(stream, state, sync, er, cb) {
  --state.pendingcb;
  if (sync) processNextTick(cb, er);else cb(er);

  stream._writableState.errorEmitted = true;
  stream.emit('error', er);
}

function onwriteStateUpdate(state) {
  state.writing = false;
  state.writecb = null;
  state.length -= state.writelen;
  state.writelen = 0;
}

function onwrite(stream, er) {
  var state = stream._writableState;
  var sync = state.sync;
  var cb = state.writecb;

  onwriteStateUpdate(state);

  if (er) onwriteError(stream, state, sync, er, cb);else {
    // Check if we're actually ready to finish, but don't emit yet
    var finished = needFinish(state);

    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
      clearBuffer(stream, state);
    }

    if (sync) {
      /*<replacement>*/
      asyncWrite(afterWrite, stream, state, finished, cb);
      /*</replacement>*/
    } else {
        afterWrite(stream, state, finished, cb);
      }
  }
}

function afterWrite(stream, state, finished, cb) {
  if (!finished) onwriteDrain(stream, state);
  state.pendingcb--;
  cb();
  finishMaybe(stream, state);
}

// Must force callback to be called on nextTick, so that we don't
// emit 'drain' before the write() consumer gets the 'false' return
// value, and has a chance to attach a 'drain' listener.
function onwriteDrain(stream, state) {
  if (state.length === 0 && state.needDrain) {
    state.needDrain = false;
    stream.emit('drain');
  }
}

// if there's something in the buffer waiting, then process it
function clearBuffer(stream, state) {
  state.bufferProcessing = true;
  var entry = state.bufferedRequest;

  if (stream._writev && entry && entry.next) {
    // Fast case, write everything using _writev()
    var l = state.bufferedRequestCount;
    var buffer = new Array(l);
    var holder = state.corkedRequestsFree;
    holder.entry = entry;

    var count = 0;
    while (entry) {
      buffer[count] = entry;
      entry = entry.next;
      count += 1;
    }

    doWrite(stream, state, true, state.length, buffer, '', holder.finish);

    // doWrite is always async, defer these to save a bit of time
    // as the hot path ends with doWrite
    state.pendingcb++;
    state.lastBufferedRequest = null;
    state.corkedRequestsFree = holder.next;
    holder.next = null;
  } else {
    // Slow case, write chunks one-by-one
    while (entry) {
      var chunk = entry.chunk;
      var encoding = entry.encoding;
      var cb = entry.callback;
      var len = state.objectMode ? 1 : chunk.length;

      doWrite(stream, state, false, len, chunk, encoding, cb);
      entry = entry.next;
      // if we didn't call the onwrite immediately, then
      // it means that we need to wait until it does.
      // also, that means that the chunk and cb are currently
      // being processed, so move the buffer counter past them.
      if (state.writing) {
        break;
      }
    }

    if (entry === null) state.lastBufferedRequest = null;
  }

  state.bufferedRequestCount = 0;
  state.bufferedRequest = entry;
  state.bufferProcessing = false;
}

Writable.prototype._write = function (chunk, encoding, cb) {
  cb(new Error('not implemented'));
};

Writable.prototype._writev = null;

Writable.prototype.end = function (chunk, encoding, cb) {
  var state = this._writableState;

  if (typeof chunk === 'function') {
    cb = chunk;
    chunk = null;
    encoding = null;
  } else if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);

  // .end() fully uncorks
  if (state.corked) {
    state.corked = 1;
    this.uncork();
  }

  // ignore unnecessary end() calls.
  if (!state.ending && !state.finished) endWritable(this, state, cb);
};

function needFinish(state) {
  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
}

function prefinish(stream, state) {
  if (!state.prefinished) {
    state.prefinished = true;
    stream.emit('prefinish');
  }
}

function finishMaybe(stream, state) {
  var need = needFinish(state);
  if (need) {
    if (state.pendingcb === 0) {
      prefinish(stream, state);
      state.finished = true;
      stream.emit('finish');
    } else {
      prefinish(stream, state);
    }
  }
  return need;
}

function endWritable(stream, state, cb) {
  state.ending = true;
  finishMaybe(stream, state);
  if (cb) {
    if (state.finished) processNextTick(cb);else stream.once('finish', cb);
  }
  state.ended = true;
  stream.writable = false;
}

// It seems a linked list but it is not
// there will be only 2 of these for each stream
function CorkedRequest(state) {
  var _this = this;

  this.next = null;
  this.entry = null;

  this.finish = function (err) {
    var entry = _this.entry;
    _this.entry = null;
    while (entry) {
      var cb = entry.callback;
      state.pendingcb--;
      cb(err);
      entry = entry.next;
    }
    if (state.corkedRequestsFree) {
      state.corkedRequestsFree.next = _this;
    } else {
      state.corkedRequestsFree = _this;
    }
  };
}
}).call(this,require('_process'))
},{"./_stream_duplex":165,"_process":152,"buffer":95,"core-util-is":97,"events":135,"inherits":139,"process-nextick-args":151,"util-deprecate":192}],170:[function(require,module,exports){
module.exports = require("./lib/_stream_passthrough.js")

},{"./lib/_stream_passthrough.js":166}],171:[function(require,module,exports){
var Stream = (function (){
  try {
    return require('st' + 'ream'); // hack to fix a circular dependency issue when used with browserify
  } catch(_){}
}());
exports = module.exports = require('./lib/_stream_readable.js');
exports.Stream = Stream || exports;
exports.Readable = exports;
exports.Writable = require('./lib/_stream_writable.js');
exports.Duplex = require('./lib/_stream_duplex.js');
exports.Transform = require('./lib/_stream_transform.js');
exports.PassThrough = require('./lib/_stream_passthrough.js');

},{"./lib/_stream_duplex.js":165,"./lib/_stream_passthrough.js":166,"./lib/_stream_readable.js":167,"./lib/_stream_transform.js":168,"./lib/_stream_writable.js":169}],172:[function(require,module,exports){
module.exports = require("./lib/_stream_transform.js")

},{"./lib/_stream_transform.js":168}],173:[function(require,module,exports){
module.exports = require("./lib/_stream_writable.js")

},{"./lib/_stream_writable.js":169}],174:[function(require,module,exports){
(function (Buffer){
/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
/** @preserve
(c) 2012 by Cédric Mesnil. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

    - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
    - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

// constants table
var zl = [
  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
]

var zr = [
  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
]

var sl = [
  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
]

var sr = [
  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
]

var hl = [0x00000000, 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xA953FD4E]
var hr = [0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x7A6D76E9, 0x00000000]

function bytesToWords (bytes) {
  var words = []
  for (var i = 0, b = 0; i < bytes.length; i++, b += 8) {
    words[b >>> 5] |= bytes[i] << (24 - b % 32)
  }
  return words
}

function wordsToBytes (words) {
  var bytes = []
  for (var b = 0; b < words.length * 32; b += 8) {
    bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF)
  }
  return bytes
}

function processBlock (H, M, offset) {
  // swap endian
  for (var i = 0; i < 16; i++) {
    var offset_i = offset + i
    var M_offset_i = M[offset_i]

    // Swap
    M[offset_i] = (
      (((M_offset_i << 8) | (M_offset_i >>> 24)) & 0x00ff00ff) |
      (((M_offset_i << 24) | (M_offset_i >>> 8)) & 0xff00ff00)
    )
  }

  // Working variables
  var al, bl, cl, dl, el
  var ar, br, cr, dr, er

  ar = al = H[0]
  br = bl = H[1]
  cr = cl = H[2]
  dr = dl = H[3]
  er = el = H[4]

  // computation
  var t
  for (i = 0; i < 80; i += 1) {
    t = (al + M[offset + zl[i]]) | 0
    if (i < 16) {
      t += f1(bl, cl, dl) + hl[0]
    } else if (i < 32) {
      t += f2(bl, cl, dl) + hl[1]
    } else if (i < 48) {
      t += f3(bl, cl, dl) + hl[2]
    } else if (i < 64) {
      t += f4(bl, cl, dl) + hl[3]
    } else {// if (i<80) {
      t += f5(bl, cl, dl) + hl[4]
    }
    t = t | 0
    t = rotl(t, sl[i])
    t = (t + el) | 0
    al = el
    el = dl
    dl = rotl(cl, 10)
    cl = bl
    bl = t

    t = (ar + M[offset + zr[i]]) | 0
    if (i < 16) {
      t += f5(br, cr, dr) + hr[0]
    } else if (i < 32) {
      t += f4(br, cr, dr) + hr[1]
    } else if (i < 48) {
      t += f3(br, cr, dr) + hr[2]
    } else if (i < 64) {
      t += f2(br, cr, dr) + hr[3]
    } else {// if (i<80) {
      t += f1(br, cr, dr) + hr[4]
    }

    t = t | 0
    t = rotl(t, sr[i])
    t = (t + er) | 0
    ar = er
    er = dr
    dr = rotl(cr, 10)
    cr = br
    br = t
  }

  // intermediate hash value
  t = (H[1] + cl + dr) | 0
  H[1] = (H[2] + dl + er) | 0
  H[2] = (H[3] + el + ar) | 0
  H[3] = (H[4] + al + br) | 0
  H[4] = (H[0] + bl + cr) | 0
  H[0] = t
}

function f1 (x, y, z) {
  return ((x) ^ (y) ^ (z))
}

function f2 (x, y, z) {
  return (((x) & (y)) | ((~x) & (z)))
}

function f3 (x, y, z) {
  return (((x) | (~(y))) ^ (z))
}

function f4 (x, y, z) {
  return (((x) & (z)) | ((y) & (~(z))))
}

function f5 (x, y, z) {
  return ((x) ^ ((y) | (~(z))))
}

function rotl (x, n) {
  return (x << n) | (x >>> (32 - n))
}

function ripemd160 (message) {
  var H = [0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0]

  if (typeof message === 'string') {
    message = new Buffer(message, 'utf8')
  }

  var m = bytesToWords(message)

  var nBitsLeft = message.length * 8
  var nBitsTotal = message.length * 8

  // Add padding
  m[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32)
  m[(((nBitsLeft + 64) >>> 9) << 4) + 14] = (
    (((nBitsTotal << 8) | (nBitsTotal >>> 24)) & 0x00ff00ff) |
    (((nBitsTotal << 24) | (nBitsTotal >>> 8)) & 0xff00ff00)
  )

  for (var i = 0; i < m.length; i += 16) {
    processBlock(H, m, i)
  }

  // swap endian
  for (i = 0; i < 5; i++) {
    // shortcut
    var H_i = H[i]

    // Swap
    H[i] = (((H_i << 8) | (H_i >>> 24)) & 0x00ff00ff) |
      (((H_i << 24) | (H_i >>> 8)) & 0xff00ff00)
  }

  var digestbytes = wordsToBytes(H)
  return new Buffer(digestbytes)
}

module.exports = ripemd160

}).call(this,require("buffer").Buffer)
},{"buffer":95}],175:[function(require,module,exports){
(function (Buffer){
// prototype class for hash functions
function Hash (blockSize, finalSize) {
  this._block = new Buffer(blockSize)
  this._finalSize = finalSize
  this._blockSize = blockSize
  this._len = 0
  this._s = 0
}

Hash.prototype.update = function (data, enc) {
  if (typeof data === 'string') {
    enc = enc || 'utf8'
    data = new Buffer(data, enc)
  }

  var l = this._len += data.length
  var s = this._s || 0
  var f = 0
  var buffer = this._block

  while (s < l) {
    var t = Math.min(data.length, f + this._blockSize - (s % this._blockSize))
    var ch = (t - f)

    for (var i = 0; i < ch; i++) {
      buffer[(s % this._blockSize) + i] = data[i + f]
    }

    s += ch
    f += ch

    if ((s % this._blockSize) === 0) {
      this._update(buffer)
    }
  }
  this._s = s

  return this
}

Hash.prototype.digest = function (enc) {
  // Suppose the length of the message M, in bits, is l
  var l = this._len * 8

  // Append the bit 1 to the end of the message
  this._block[this._len % this._blockSize] = 0x80

  // and then k zero bits, where k is the smallest non-negative solution to the equation (l + 1 + k) === finalSize mod blockSize
  this._block.fill(0, this._len % this._blockSize + 1)

  if (l % (this._blockSize * 8) >= this._finalSize * 8) {
    this._update(this._block)
    this._block.fill(0)
  }

  // to this append the block which is equal to the number l written in binary
  // TODO: handle case where l is > Math.pow(2, 29)
  this._block.writeInt32BE(l, this._blockSize - 4)

  var hash = this._update(this._block) || this._hash()

  return enc ? hash.toString(enc) : hash
}

Hash.prototype._update = function () {
  throw new Error('_update must be implemented by subclass')
}

module.exports = Hash

}).call(this,require("buffer").Buffer)
},{"buffer":95}],176:[function(require,module,exports){
var exports = module.exports = function SHA (algorithm) {
  algorithm = algorithm.toLowerCase()

  var Algorithm = exports[algorithm]
  if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')

  return new Algorithm()
}

exports.sha = require('./sha')
exports.sha1 = require('./sha1')
exports.sha224 = require('./sha224')
exports.sha256 = require('./sha256')
exports.sha384 = require('./sha384')
exports.sha512 = require('./sha512')

},{"./sha":177,"./sha1":178,"./sha224":179,"./sha256":180,"./sha384":181,"./sha512":182}],177:[function(require,module,exports){
(function (Buffer){
/*
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
 * in FIPS PUB 180-1
 * This source code is derived from sha1.js of the same repository.
 * The difference between SHA-0 and SHA-1 is just a bitwise rotate left
 * operation was added.
 */

var inherits = require('inherits')
var Hash = require('./hash')

var K = [
  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
]

var W = new Array(80)

function Sha () {
  this.init()
  this._w = W

  Hash.call(this, 64, 56)
}

inherits(Sha, Hash)

Sha.prototype.init = function () {
  this._a = 0x67452301
  this._b = 0xefcdab89
  this._c = 0x98badcfe
  this._d = 0x10325476
  this._e = 0xc3d2e1f0

  return this
}

function rotl5 (num) {
  return (num << 5) | (num >>> 27)
}

function rotl30 (num) {
  return (num << 30) | (num >>> 2)
}

function ft (s, b, c, d) {
  if (s === 0) return (b & c) | ((~b) & d)
  if (s === 2) return (b & c) | (b & d) | (c & d)
  return b ^ c ^ d
}

Sha.prototype._update = function (M) {
  var W = this._w

  var a = this._a | 0
  var b = this._b | 0
  var c = this._c | 0
  var d = this._d | 0
  var e = this._e | 0

  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
  for (; i < 80; ++i) W[i] = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]

  for (var j = 0; j < 80; ++j) {
    var s = ~~(j / 20)
    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0

    e = d
    d = c
    c = rotl30(b)
    b = a
    a = t
  }

  this._a = (a + this._a) | 0
  this._b = (b + this._b) | 0
  this._c = (c + this._c) | 0
  this._d = (d + this._d) | 0
  this._e = (e + this._e) | 0
}

Sha.prototype._hash = function () {
  var H = new Buffer(20)

  H.writeInt32BE(this._a | 0, 0)
  H.writeInt32BE(this._b | 0, 4)
  H.writeInt32BE(this._c | 0, 8)
  H.writeInt32BE(this._d | 0, 12)
  H.writeInt32BE(this._e | 0, 16)

  return H
}

module.exports = Sha

}).call(this,require("buffer").Buffer)
},{"./hash":175,"buffer":95,"inherits":139}],178:[function(require,module,exports){
(function (Buffer){
/*
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
 * in FIPS PUB 180-1
 * Version 2.1a Copyright Paul Johnston 2000 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for details.
 */

var inherits = require('inherits')
var Hash = require('./hash')

var K = [
  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
]

var W = new Array(80)

function Sha1 () {
  this.init()
  this._w = W

  Hash.call(this, 64, 56)
}

inherits(Sha1, Hash)

Sha1.prototype.init = function () {
  this._a = 0x67452301
  this._b = 0xefcdab89
  this._c = 0x98badcfe
  this._d = 0x10325476
  this._e = 0xc3d2e1f0

  return this
}

function rotl1 (num) {
  return (num << 1) | (num >>> 31)
}

function rotl5 (num) {
  return (num << 5) | (num >>> 27)
}

function rotl30 (num) {
  return (num << 30) | (num >>> 2)
}

function ft (s, b, c, d) {
  if (s === 0) return (b & c) | ((~b) & d)
  if (s === 2) return (b & c) | (b & d) | (c & d)
  return b ^ c ^ d
}

Sha1.prototype._update = function (M) {
  var W = this._w

  var a = this._a | 0
  var b = this._b | 0
  var c = this._c | 0
  var d = this._d | 0
  var e = this._e | 0

  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
  for (; i < 80; ++i) W[i] = rotl1(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16])

  for (var j = 0; j < 80; ++j) {
    var s = ~~(j / 20)
    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0

    e = d
    d = c
    c = rotl30(b)
    b = a
    a = t
  }

  this._a = (a + this._a) | 0
  this._b = (b + this._b) | 0
  this._c = (c + this._c) | 0
  this._d = (d + this._d) | 0
  this._e = (e + this._e) | 0
}

Sha1.prototype._hash = function () {
  var H = new Buffer(20)

  H.writeInt32BE(this._a | 0, 0)
  H.writeInt32BE(this._b | 0, 4)
  H.writeInt32BE(this._c | 0, 8)
  H.writeInt32BE(this._d | 0, 12)
  H.writeInt32BE(this._e | 0, 16)

  return H
}

module.exports = Sha1

}).call(this,require("buffer").Buffer)
},{"./hash":175,"buffer":95,"inherits":139}],179:[function(require,module,exports){
(function (Buffer){
/**
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
 * in FIPS 180-2
 * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 *
 */

var inherits = require('inherits')
var Sha256 = require('./sha256')
var Hash = require('./hash')

var W = new Array(64)

function Sha224 () {
  this.init()

  this._w = W // new Array(64)

  Hash.call(this, 64, 56)
}

inherits(Sha224, Sha256)

Sha224.prototype.init = function () {
  this._a = 0xc1059ed8
  this._b = 0x367cd507
  this._c = 0x3070dd17
  this._d = 0xf70e5939
  this._e = 0xffc00b31
  this._f = 0x68581511
  this._g = 0x64f98fa7
  this._h = 0xbefa4fa4

  return this
}

Sha224.prototype._hash = function () {
  var H = new Buffer(28)

  H.writeInt32BE(this._a, 0)
  H.writeInt32BE(this._b, 4)
  H.writeInt32BE(this._c, 8)
  H.writeInt32BE(this._d, 12)
  H.writeInt32BE(this._e, 16)
  H.writeInt32BE(this._f, 20)
  H.writeInt32BE(this._g, 24)

  return H
}

module.exports = Sha224

}).call(this,require("buffer").Buffer)
},{"./hash":175,"./sha256":180,"buffer":95,"inherits":139}],180:[function(require,module,exports){
(function (Buffer){
/**
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
 * in FIPS 180-2
 * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 *
 */

var inherits = require('inherits')
var Hash = require('./hash')

var K = [
  0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
  0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
  0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
  0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
  0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
  0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
  0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
  0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
  0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
  0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
  0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
  0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
  0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
  0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
  0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
  0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
]

var W = new Array(64)

function Sha256 () {
  this.init()

  this._w = W // new Array(64)

  Hash.call(this, 64, 56)
}

inherits(Sha256, Hash)

Sha256.prototype.init = function () {
  this._a = 0x6a09e667
  this._b = 0xbb67ae85
  this._c = 0x3c6ef372
  this._d = 0xa54ff53a
  this._e = 0x510e527f
  this._f = 0x9b05688c
  this._g = 0x1f83d9ab
  this._h = 0x5be0cd19

  return this
}

function ch (x, y, z) {
  return z ^ (x & (y ^ z))
}

function maj (x, y, z) {
  return (x & y) | (z & (x | y))
}

function sigma0 (x) {
  return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
}

function sigma1 (x) {
  return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
}

function gamma0 (x) {
  return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
}

function gamma1 (x) {
  return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
}

Sha256.prototype._update = function (M) {
  var W = this._w

  var a = this._a | 0
  var b = this._b | 0
  var c = this._c | 0
  var d = this._d | 0
  var e = this._e | 0
  var f = this._f | 0
  var g = this._g | 0
  var h = this._h | 0

  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
  for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0

  for (var j = 0; j < 64; ++j) {
    var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0
    var T2 = (sigma0(a) + maj(a, b, c)) | 0

    h = g
    g = f
    f = e
    e = (d + T1) | 0
    d = c
    c = b
    b = a
    a = (T1 + T2) | 0
  }

  this._a = (a + this._a) | 0
  this._b = (b + this._b) | 0
  this._c = (c + this._c) | 0
  this._d = (d + this._d) | 0
  this._e = (e + this._e) | 0
  this._f = (f + this._f) | 0
  this._g = (g + this._g) | 0
  this._h = (h + this._h) | 0
}

Sha256.prototype._hash = function () {
  var H = new Buffer(32)

  H.writeInt32BE(this._a, 0)
  H.writeInt32BE(this._b, 4)
  H.writeInt32BE(this._c, 8)
  H.writeInt32BE(this._d, 12)
  H.writeInt32BE(this._e, 16)
  H.writeInt32BE(this._f, 20)
  H.writeInt32BE(this._g, 24)
  H.writeInt32BE(this._h, 28)

  return H
}

module.exports = Sha256

}).call(this,require("buffer").Buffer)
},{"./hash":175,"buffer":95,"inherits":139}],181:[function(require,module,exports){
(function (Buffer){
var inherits = require('inherits')
var SHA512 = require('./sha512')
var Hash = require('./hash')

var W = new Array(160)

function Sha384 () {
  this.init()
  this._w = W

  Hash.call(this, 128, 112)
}

inherits(Sha384, SHA512)

Sha384.prototype.init = function () {
  this._ah = 0xcbbb9d5d
  this._bh = 0x629a292a
  this._ch = 0x9159015a
  this._dh = 0x152fecd8
  this._eh = 0x67332667
  this._fh = 0x8eb44a87
  this._gh = 0xdb0c2e0d
  this._hh = 0x47b5481d

  this._al = 0xc1059ed8
  this._bl = 0x367cd507
  this._cl = 0x3070dd17
  this._dl = 0xf70e5939
  this._el = 0xffc00b31
  this._fl = 0x68581511
  this._gl = 0x64f98fa7
  this._hl = 0xbefa4fa4

  return this
}

Sha384.prototype._hash = function () {
  var H = new Buffer(48)

  function writeInt64BE (h, l, offset) {
    H.writeInt32BE(h, offset)
    H.writeInt32BE(l, offset + 4)
  }

  writeInt64BE(this._ah, this._al, 0)
  writeInt64BE(this._bh, this._bl, 8)
  writeInt64BE(this._ch, this._cl, 16)
  writeInt64BE(this._dh, this._dl, 24)
  writeInt64BE(this._eh, this._el, 32)
  writeInt64BE(this._fh, this._fl, 40)

  return H
}

module.exports = Sha384

}).call(this,require("buffer").Buffer)
},{"./hash":175,"./sha512":182,"buffer":95,"inherits":139}],182:[function(require,module,exports){
(function (Buffer){
var inherits = require('inherits')
var Hash = require('./hash')

var K = [
  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
]

var W = new Array(160)

function Sha512 () {
  this.init()
  this._w = W

  Hash.call(this, 128, 112)
}

inherits(Sha512, Hash)

Sha512.prototype.init = function () {
  this._ah = 0x6a09e667
  this._bh = 0xbb67ae85
  this._ch = 0x3c6ef372
  this._dh = 0xa54ff53a
  this._eh = 0x510e527f
  this._fh = 0x9b05688c
  this._gh = 0x1f83d9ab
  this._hh = 0x5be0cd19

  this._al = 0xf3bcc908
  this._bl = 0x84caa73b
  this._cl = 0xfe94f82b
  this._dl = 0x5f1d36f1
  this._el = 0xade682d1
  this._fl = 0x2b3e6c1f
  this._gl = 0xfb41bd6b
  this._hl = 0x137e2179

  return this
}

function Ch (x, y, z) {
  return z ^ (x & (y ^ z))
}

function maj (x, y, z) {
  return (x & y) | (z & (x | y))
}

function sigma0 (x, xl) {
  return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
}

function sigma1 (x, xl) {
  return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
}

function Gamma0 (x, xl) {
  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
}

function Gamma0l (x, xl) {
  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
}

function Gamma1 (x, xl) {
  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
}

function Gamma1l (x, xl) {
  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
}

function getCarry (a, b) {
  return (a >>> 0) < (b >>> 0) ? 1 : 0
}

Sha512.prototype._update = function (M) {
  var W = this._w

  var ah = this._ah | 0
  var bh = this._bh | 0
  var ch = this._ch | 0
  var dh = this._dh | 0
  var eh = this._eh | 0
  var fh = this._fh | 0
  var gh = this._gh | 0
  var hh = this._hh | 0

  var al = this._al | 0
  var bl = this._bl | 0
  var cl = this._cl | 0
  var dl = this._dl | 0
  var el = this._el | 0
  var fl = this._fl | 0
  var gl = this._gl | 0
  var hl = this._hl | 0

  for (var i = 0; i < 32; i += 2) {
    W[i] = M.readInt32BE(i * 4)
    W[i + 1] = M.readInt32BE(i * 4 + 4)
  }
  for (; i < 160; i += 2) {
    var xh = W[i - 15 * 2]
    var xl = W[i - 15 * 2 + 1]
    var gamma0 = Gamma0(xh, xl)
    var gamma0l = Gamma0l(xl, xh)

    xh = W[i - 2 * 2]
    xl = W[i - 2 * 2 + 1]
    var gamma1 = Gamma1(xh, xl)
    var gamma1l = Gamma1l(xl, xh)

    // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
    var Wi7h = W[i - 7 * 2]
    var Wi7l = W[i - 7 * 2 + 1]

    var Wi16h = W[i - 16 * 2]
    var Wi16l = W[i - 16 * 2 + 1]

    var Wil = (gamma0l + Wi7l) | 0
    var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0
    Wil = (Wil + gamma1l) | 0
    Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0
    Wil = (Wil + Wi16l) | 0
    Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0

    W[i] = Wih
    W[i + 1] = Wil
  }

  for (var j = 0; j < 160; j += 2) {
    Wih = W[j]
    Wil = W[j + 1]

    var majh = maj(ah, bh, ch)
    var majl = maj(al, bl, cl)

    var sigma0h = sigma0(ah, al)
    var sigma0l = sigma0(al, ah)
    var sigma1h = sigma1(eh, el)
    var sigma1l = sigma1(el, eh)

    // t1 = h + sigma1 + ch + K[j] + W[j]
    var Kih = K[j]
    var Kil = K[j + 1]

    var chh = Ch(eh, fh, gh)
    var chl = Ch(el, fl, gl)

    var t1l = (hl + sigma1l) | 0
    var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0
    t1l = (t1l + chl) | 0
    t1h = (t1h + chh + getCarry(t1l, chl)) | 0
    t1l = (t1l + Kil) | 0
    t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0
    t1l = (t1l + Wil) | 0
    t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0

    // t2 = sigma0 + maj
    var t2l = (sigma0l + majl) | 0
    var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0

    hh = gh
    hl = gl
    gh = fh
    gl = fl
    fh = eh
    fl = el
    el = (dl + t1l) | 0
    eh = (dh + t1h + getCarry(el, dl)) | 0
    dh = ch
    dl = cl
    ch = bh
    cl = bl
    bh = ah
    bl = al
    al = (t1l + t2l) | 0
    ah = (t1h + t2h + getCarry(al, t1l)) | 0
  }

  this._al = (this._al + al) | 0
  this._bl = (this._bl + bl) | 0
  this._cl = (this._cl + cl) | 0
  this._dl = (this._dl + dl) | 0
  this._el = (this._el + el) | 0
  this._fl = (this._fl + fl) | 0
  this._gl = (this._gl + gl) | 0
  this._hl = (this._hl + hl) | 0

  this._ah = (this._ah + ah + getCarry(this._al, al)) | 0
  this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0
  this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0
  this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0
  this._eh = (this._eh + eh + getCarry(this._el, el)) | 0
  this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0
  this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0
  this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0
}

Sha512.prototype._hash = function () {
  var H = new Buffer(64)

  function writeInt64BE (h, l, offset) {
    H.writeInt32BE(h, offset)
    H.writeInt32BE(l, offset + 4)
  }

  writeInt64BE(this._ah, this._al, 0)
  writeInt64BE(this._bh, this._bl, 8)
  writeInt64BE(this._ch, this._cl, 16)
  writeInt64BE(this._dh, this._dl, 24)
  writeInt64BE(this._eh, this._el, 32)
  writeInt64BE(this._fh, this._fl, 40)
  writeInt64BE(this._gh, this._gl, 48)
  writeInt64BE(this._hh, this._hl, 56)

  return H
}

module.exports = Sha512

}).call(this,require("buffer").Buffer)
},{"./hash":175,"buffer":95,"inherits":139}],183:[function(require,module,exports){
(function (Buffer){
var WordArray = require('./word-array')

var Base = (function () {
  function F() {}

  return {
    /**
     * Creates a new object that inherits from this object.
     *
     * @param {Object} overrides Properties to copy into the new object.
     *
     * @return {Object} The new object.
     *
     * @static
     *
     * @example
     *
     *     var MyType = CryptoJS.lib.Base.extend({
     *         field: 'value',
     *
     *         method: function () {
     *         }
     *     });
     */
    extend: function (overrides) {
      // Spawn
      F.prototype = this;
      var subtype = new F();

      // Augment
      if (overrides) {
        subtype.mixIn(overrides);
      }

      // Create default initializer
      if (!subtype.hasOwnProperty('init')) {
        subtype.init = function () {
          subtype.$super.init.apply(this, arguments);
        };
      }

      // Initializer's prototype is the subtype object
      subtype.init.prototype = subtype;

      // Reference supertype
      subtype.$super = this;

      return subtype;
    },

    /**
     * Extends this object and runs the init method.
     * Arguments to create() will be passed to init().
     *
     * @return {Object} The new object.
     *
     * @static
     *
     * @example
     *
     *     var instance = MyType.create();
     */
    create: function () {
      var instance = this.extend();
      instance.init.apply(instance, arguments);

      return instance;
    },

    /**
     * Initializes a newly created object.
     * Override this method to add some logic when your objects are created.
     *
     * @example
     *
     *     var MyType = CryptoJS.lib.Base.extend({
     *         init: function () {
     *             // ...
     *         }
     *     });
     */
      init: function () {
    },


    mixIn: function (properties) {
      for (var propertyName in properties) {
        if (properties.hasOwnProperty(propertyName)) {
          this[propertyName] = properties[propertyName];
        }
      }

      // IE won't copy toString using the loop above
      if (properties.hasOwnProperty('toString')) {
        this.toString = properties.toString;
      }
    },


    clone: function () {
      return this.init.prototype.extend(this);
    }
  };
}());


/**
 * Abstract buffered block algorithm template.
 *
 * The property blockSize must be implemented in a concrete subtype.
 *
 * @property {number} _minBufferSize The number of blocks that should be kept unprocessed in the buffer. Default: 0
 */
var BufferedBlockAlgorithm = Base.extend({
  /**
   * Resets this block algorithm's data buffer to its initial state.
   *
   * @example
   *
   *     bufferedBlockAlgorithm.reset();
   */
    reset: function () {
      // Initial values
      this._data = new WordArray();
      this._nDataBytes = 0;
    },

    /**
     * Adds new data to this block algorithm's buffer.
     *
     * @param {WordArray|string} data The data to append. Strings are converted to a WordArray using UTF-8.
     *
     * @example
     *
     *     bufferedBlockAlgorithm._append('data');
     *     bufferedBlockAlgorithm._append(wordArray);
     */
    _append: function (data) {
      //console.dir(data)

      if (Buffer.isBuffer(data)) {
        data = WordArray.fromBuffer(data)
      }

      // Append
      this._data.concat(data);
      this._nDataBytes += data.sigBytes;
    },

    /**
     * Processes available data blocks.
     *
     * This method invokes _doProcessBlock(offset), which must be implemented by a concrete subtype.
     *
     * @param {boolean} doFlush Whether all blocks and partial blocks should be processed.
     *
     * @return {WordArray} The processed data.
     *
     * @example
     *
     *     var processedData = bufferedBlockAlgorithm._process();
     *     var processedData = bufferedBlockAlgorithm._process(!!'flush');
     */
    _process: function (doFlush) {
      // Shortcuts
      var data = this._data;
      var dataWords = data.words;
      var dataSigBytes = data.sigBytes;
      var blockSize = this.blockSize;
      var blockSizeBytes = blockSize * 4;

      // Count blocks ready
      var nBlocksReady = dataSigBytes / blockSizeBytes;
      if (doFlush) {
          // Round up to include partial blocks
          nBlocksReady = Math.ceil(nBlocksReady);
      } else {
          // Round down to include only full blocks,
          // less the number of blocks that must remain in the buffer
          nBlocksReady = Math.max((nBlocksReady | 0) - this._minBufferSize, 0);
      }

      // Count words ready
      var nWordsReady = nBlocksReady * blockSize;

      // Count bytes ready
      var nBytesReady = Math.min(nWordsReady * 4, dataSigBytes);

      // Process blocks
      if (nWordsReady) {
        for (var offset = 0; offset < nWordsReady; offset += blockSize) {
          // Perform concrete-algorithm logic
          this._doProcessBlock(dataWords, offset);
        }

        // Remove processed words
        var processedWords = dataWords.splice(0, nWordsReady);
        data.sigBytes -= nBytesReady;
      }

      // Return processed words
      return new WordArray(processedWords, nBytesReady);
    },

    /**
     * Creates a copy of this object.
     * @example
     *
     *     var clone = bufferedBlockAlgorithm.clone();
     */
    clone: function () {
      var clone = Base.clone.call(this);
      clone._data = this._data.clone();

      return clone;
    },

      _minBufferSize: 0
    });

/**
 * Abstract hasher template.
 *
 * @property {number} blockSize The number of 32-bit words this hasher operates on. Default: 16 (512 bits)
 */
var Hasher = BufferedBlockAlgorithm.extend({
  /**
   * Configuration options.
   */
  cfg: Base.extend(),

  /**
   * Initializes a newly created hasher.
   * @example
   *
   *     var hasher = CryptoJS.algo.SHA256.create();
   */
  init: function (cfg) {
    // Apply config defaults
    this.cfg = this.cfg.extend(cfg);

    // Set initial values
    this.reset();
  },

  reset: function () {
    // Reset data buffer
    BufferedBlockAlgorithm.reset.call(this);

    // Perform concrete-hasher logic
    this._doReset();
  },

  update: function (messageUpdate) {
    if (typeof messageUpdate == 'string')
      messageUpdate = WordArray.fromBuffer(new Buffer(messageUpdate, 'utf8'))

    if (Buffer.isBuffer(messageUpdate))
      messageUpdate = WordArray.fromBuffer(messageUpdate)

    // Append
    this._append(messageUpdate);

    // Update the hash
    this._process();

    // Chainable
    return this;
  },

  finalize: function (messageUpdate) {
    if (typeof messageUpdate == 'string')
      messageUpdate = WordArray.fromBuffer(new Buffer(messageUpdate, 'utf8'))

    if (Buffer.isBuffer(messageUpdate))
      messageUpdate = WordArray.fromBuffer(messageUpdate)


    // Final message update
    if (messageUpdate) {
      this._append(messageUpdate);
    }

    // Perform concrete-hasher logic
    var hash = this._doFinalize();

    return hash.toBuffer()
  },

  blockSize: 512/32,

  /** TODO: DELETE
   * Creates a shortcut function to a hasher's object interface.
   * @example
   *
   *     var SHA256 = CryptoJS.lib.Hasher._createHelper(CryptoJS.algo.SHA256);
   */
  _createHelper: function (hasher) {
    return function (message, cfg) {
      return new hasher.init(cfg).finalize(message);
    };
  }

});

module.exports.Hasher = Hasher



}).call(this,require("buffer").Buffer)
},{"./word-array":187,"buffer":95}],184:[function(require,module,exports){
(function (Buffer){
var sha512 = require('./sha512').sha512
var WordArray = require('./word-array')

function HMAC(key) {
  if (!(this instanceof HMAC))
    return new HMAC(key)

  // Init hasher
  var hasher = this._hasher = new sha512.init()//new hasher.init();

  // Convert string to WordArray, else assume WordArray already
  if (typeof key == 'string') {
    key = WordArray.fromBuffer(new Buffer(key, 'utf8'));
  }

  if (Buffer.isBuffer(key)) {
    key = WordArray.fromBuffer(key)
  }

  // Shortcuts
  var hasherBlockSize = hasher.blockSize;
  var hasherBlockSizeBytes = hasherBlockSize * 4;

  // Allow arbitrary length keys
  if (key.sigBytes > hasherBlockSizeBytes) {
      key = hasher.finalize(key);
  }

  // Clamp excess bits
  key.clamp();

  // Clone key for inner and outer pads
  var oKey = this._oKey = key.clone();
  var iKey = this._iKey = key.clone();

  // Shortcuts
  var oKeyWords = oKey.words;
  var iKeyWords = iKey.words;

  // XOR keys with pad constants
  for (var i = 0; i < hasherBlockSize; i++) {
    oKeyWords[i] ^= 0x5c5c5c5c;
    iKeyWords[i] ^= 0x36363636;
  }
  oKey.sigBytes = iKey.sigBytes = hasherBlockSizeBytes;

  // Set initial values
  this.reset();
}

HMAC.prototype.reset = function () {
  // Shortcut
  var hasher = this._hasher;

  // Reset
  hasher.reset();
  hasher.update(this._iKey);
}

HMAC.prototype.update = function (messageUpdate) {
  if (typeof messageUpdate == 'string')
    messageUpdate = WordArray.fromBuffer(new Buffer(messageUpdate, 'utf8'))

  if (Buffer.isBuffer(messageUpdate))
    messageUpdate = WordArray.fromBuffer(messageUpdate)

  this._hasher.update(messageUpdate);

  // Chainable
  return this;
}

HMAC.prototype.finalize = function (messageUpdate) {
   if (typeof messageUpdate == 'string')
    messageUpdate = WordArray.fromBuffer(new Buffer(messageUpdate, 'utf8'))

  if (Buffer.isBuffer(messageUpdate))
    messageUpdate = WordArray.fromBuffer(messageUpdate)

  // Shortcut
  var hasher = this._hasher;

  // Compute HMAC
  var innerHash = hasher.finalize(messageUpdate);
  hasher.reset();
  var hmac = hasher.finalize(this._oKey.clone().concat(innerHash));

  return hmac;
}
  

module.exports = HMAC

}).call(this,require("buffer").Buffer)
},{"./sha512":186,"./word-array":187,"buffer":95}],185:[function(require,module,exports){
module.exports = require('./sha512')
module.exports.hmac = require('./hmac')
},{"./hmac":184,"./sha512":186}],186:[function(require,module,exports){

var Hasher = require('./cryptojs').Hasher 

var C_x64 = require('./x64')
var X64Word = C_x64.Word;
var X64WordArray = C_x64.WordArray;

// Constants
var K = [
  X64Word(0x428a2f98, 0xd728ae22), X64Word(0x71374491, 0x23ef65cd),
  X64Word(0xb5c0fbcf, 0xec4d3b2f), X64Word(0xe9b5dba5, 0x8189dbbc),
  X64Word(0x3956c25b, 0xf348b538), X64Word(0x59f111f1, 0xb605d019),
  X64Word(0x923f82a4, 0xaf194f9b), X64Word(0xab1c5ed5, 0xda6d8118),
  X64Word(0xd807aa98, 0xa3030242), X64Word(0x12835b01, 0x45706fbe),
  X64Word(0x243185be, 0x4ee4b28c), X64Word(0x550c7dc3, 0xd5ffb4e2),
  X64Word(0x72be5d74, 0xf27b896f), X64Word(0x80deb1fe, 0x3b1696b1),
  X64Word(0x9bdc06a7, 0x25c71235), X64Word(0xc19bf174, 0xcf692694),
  X64Word(0xe49b69c1, 0x9ef14ad2), X64Word(0xefbe4786, 0x384f25e3),
  X64Word(0x0fc19dc6, 0x8b8cd5b5), X64Word(0x240ca1cc, 0x77ac9c65),
  X64Word(0x2de92c6f, 0x592b0275), X64Word(0x4a7484aa, 0x6ea6e483),
  X64Word(0x5cb0a9dc, 0xbd41fbd4), X64Word(0x76f988da, 0x831153b5),
  X64Word(0x983e5152, 0xee66dfab), X64Word(0xa831c66d, 0x2db43210),
  X64Word(0xb00327c8, 0x98fb213f), X64Word(0xbf597fc7, 0xbeef0ee4),
  X64Word(0xc6e00bf3, 0x3da88fc2), X64Word(0xd5a79147, 0x930aa725),
  X64Word(0x06ca6351, 0xe003826f), X64Word(0x14292967, 0x0a0e6e70),
  X64Word(0x27b70a85, 0x46d22ffc), X64Word(0x2e1b2138, 0x5c26c926),
  X64Word(0x4d2c6dfc, 0x5ac42aed), X64Word(0x53380d13, 0x9d95b3df),
  X64Word(0x650a7354, 0x8baf63de), X64Word(0x766a0abb, 0x3c77b2a8),
  X64Word(0x81c2c92e, 0x47edaee6), X64Word(0x92722c85, 0x1482353b),
  X64Word(0xa2bfe8a1, 0x4cf10364), X64Word(0xa81a664b, 0xbc423001),
  X64Word(0xc24b8b70, 0xd0f89791), X64Word(0xc76c51a3, 0x0654be30),
  X64Word(0xd192e819, 0xd6ef5218), X64Word(0xd6990624, 0x5565a910),
  X64Word(0xf40e3585, 0x5771202a), X64Word(0x106aa070, 0x32bbd1b8),
  X64Word(0x19a4c116, 0xb8d2d0c8), X64Word(0x1e376c08, 0x5141ab53),
  X64Word(0x2748774c, 0xdf8eeb99), X64Word(0x34b0bcb5, 0xe19b48a8),
  X64Word(0x391c0cb3, 0xc5c95a63), X64Word(0x4ed8aa4a, 0xe3418acb),
  X64Word(0x5b9cca4f, 0x7763e373), X64Word(0x682e6ff3, 0xd6b2b8a3),
  X64Word(0x748f82ee, 0x5defb2fc), X64Word(0x78a5636f, 0x43172f60),
  X64Word(0x84c87814, 0xa1f0ab72), X64Word(0x8cc70208, 0x1a6439ec),
  X64Word(0x90befffa, 0x23631e28), X64Word(0xa4506ceb, 0xde82bde9),
  X64Word(0xbef9a3f7, 0xb2c67915), X64Word(0xc67178f2, 0xe372532b),
  X64Word(0xca273ece, 0xea26619c), X64Word(0xd186b8c7, 0x21c0c207),
  X64Word(0xeada7dd6, 0xcde0eb1e), X64Word(0xf57d4f7f, 0xee6ed178),
  X64Word(0x06f067aa, 0x72176fba), X64Word(0x0a637dc5, 0xa2c898a6),
  X64Word(0x113f9804, 0xbef90dae), X64Word(0x1b710b35, 0x131c471b),
  X64Word(0x28db77f5, 0x23047d84), X64Word(0x32caab7b, 0x40c72493),
  X64Word(0x3c9ebe0a, 0x15c9bebc), X64Word(0x431d67c4, 0x9c100d4c),
  X64Word(0x4cc5d4be, 0xcb3e42b6), X64Word(0x597f299c, 0xfc657e2a),
  X64Word(0x5fcb6fab, 0x3ad6faec), X64Word(0x6c44198c, 0x4a475817)
];

// Reusable objects
var W = [];
(function () {
  for (var i = 0; i < 80; i++) {
    W[i] = X64Word();
  }
}());

/**
 * SHA-512 hash algorithm.
 */
var SHA512 = Hasher.extend({
  _doReset: function () {
    this._hash = new X64WordArray([
      X64Word(0x6a09e667, 0xf3bcc908), X64Word(0xbb67ae85, 0x84caa73b),
      X64Word(0x3c6ef372, 0xfe94f82b), X64Word(0xa54ff53a, 0x5f1d36f1),
      X64Word(0x510e527f, 0xade682d1), X64Word(0x9b05688c, 0x2b3e6c1f),
      X64Word(0x1f83d9ab, 0xfb41bd6b), X64Word(0x5be0cd19, 0x137e2179)
    ]);
  },

  _doProcessBlock: function (M, offset) {
    // Shortcuts
    var H = this._hash.words;

    var H0 = H[0]; var H1 = H[1]; var H2 = H[2];
    var H3 = H[3]; var H4 = H[4]; var H5 = H[5];
    var H6 = H[6]; var H7 = H[7];

    var H0h = H0.high; var H0l = H0.low;
    var H1h = H1.high; var H1l = H1.low;
    var H2h = H2.high; var H2l = H2.low;
    var H3h = H3.high; var H3l = H3.low;
    var H4h = H4.high; var H4l = H4.low;
    var H5h = H5.high; var H5l = H5.low;
    var H6h = H6.high; var H6l = H6.low;
    var H7h = H7.high; var H7l = H7.low;

    // Working variables
    var ah = H0h; var al = H0l;
    var bh = H1h; var bl = H1l;
    var ch = H2h; var cl = H2l;
    var dh = H3h; var dl = H3l;
    var eh = H4h; var el = H4l;
    var fh = H5h; var fl = H5l;
    var gh = H6h; var gl = H6l;
    var hh = H7h; var hl = H7l;

    // Rounds
    for (var i = 0; i < 80; i++) {
      // Shortcut
      var Wi = W[i];

      // Extend message
      if (i < 16) {
        var Wih = Wi.high = M[offset + i * 2]     | 0;
        var Wil = Wi.low  = M[offset + i * 2 + 1] | 0;
      } else {
        // Gamma0
        var gamma0x  = W[i - 15];
        var gamma0xh = gamma0x.high;
        var gamma0xl = gamma0x.low;
        var gamma0h  = ((gamma0xh >>> 1) | (gamma0xl << 31)) ^ ((gamma0xh >>> 8) | (gamma0xl << 24)) ^ (gamma0xh >>> 7);
        var gamma0l  = ((gamma0xl >>> 1) | (gamma0xh << 31)) ^ ((gamma0xl >>> 8) | (gamma0xh << 24)) ^ ((gamma0xl >>> 7) | (gamma0xh << 25));

        // Gamma1
        var gamma1x  = W[i - 2];
        var gamma1xh = gamma1x.high;
        var gamma1xl = gamma1x.low;
        var gamma1h  = ((gamma1xh >>> 19) | (gamma1xl << 13)) ^ ((gamma1xh << 3) | (gamma1xl >>> 29)) ^ (gamma1xh >>> 6);
        var gamma1l  = ((gamma1xl >>> 19) | (gamma1xh << 13)) ^ ((gamma1xl << 3) | (gamma1xh >>> 29)) ^ ((gamma1xl >>> 6) | (gamma1xh << 26));

        // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
        var Wi7  = W[i - 7];
        var Wi7h = Wi7.high;
        var Wi7l = Wi7.low;

        var Wi16  = W[i - 16];
        var Wi16h = Wi16.high;
        var Wi16l = Wi16.low;

        var Wil = gamma0l + Wi7l;
        var Wih = gamma0h + Wi7h + ((Wil >>> 0) < (gamma0l >>> 0) ? 1 : 0);
        var Wil = Wil + gamma1l;
        var Wih = Wih + gamma1h + ((Wil >>> 0) < (gamma1l >>> 0) ? 1 : 0);
        var Wil = Wil + Wi16l;
        var Wih = Wih + Wi16h + ((Wil >>> 0) < (Wi16l >>> 0) ? 1 : 0);

        Wi.high = Wih;
        Wi.low  = Wil;
      }

      var chh  = (eh & fh) ^ (~eh & gh);
      var chl  = (el & fl) ^ (~el & gl);
      var majh = (ah & bh) ^ (ah & ch) ^ (bh & ch);
      var majl = (al & bl) ^ (al & cl) ^ (bl & cl);

      var sigma0h = ((ah >>> 28) | (al << 4))  ^ ((ah << 30)  | (al >>> 2)) ^ ((ah << 25) | (al >>> 7));
      var sigma0l = ((al >>> 28) | (ah << 4))  ^ ((al << 30)  | (ah >>> 2)) ^ ((al << 25) | (ah >>> 7));
      var sigma1h = ((eh >>> 14) | (el << 18)) ^ ((eh >>> 18) | (el << 14)) ^ ((eh << 23) | (el >>> 9));
      var sigma1l = ((el >>> 14) | (eh << 18)) ^ ((el >>> 18) | (eh << 14)) ^ ((el << 23) | (eh >>> 9));

      // t1 = h + sigma1 + ch + K[i] + W[i]
      var Ki  = K[i];
      var Kih = Ki.high;
      var Kil = Ki.low;

      var t1l = hl + sigma1l;
      var t1h = hh + sigma1h + ((t1l >>> 0) < (hl >>> 0) ? 1 : 0);
      var t1l = t1l + chl;
      var t1h = t1h + chh + ((t1l >>> 0) < (chl >>> 0) ? 1 : 0);
      var t1l = t1l + Kil;
      var t1h = t1h + Kih + ((t1l >>> 0) < (Kil >>> 0) ? 1 : 0);
      var t1l = t1l + Wil;
      var t1h = t1h + Wih + ((t1l >>> 0) < (Wil >>> 0) ? 1 : 0);

      // t2 = sigma0 + maj
      var t2l = sigma0l + majl;
      var t2h = sigma0h + majh + ((t2l >>> 0) < (sigma0l >>> 0) ? 1 : 0);

      // Update working variables
      hh = gh; hl = gl;
      gh = fh; gl = fl;
      fh = eh; fl = el;
      el = (dl + t1l) | 0;
      eh = (dh + t1h + ((el >>> 0) < (dl >>> 0) ? 1 : 0)) | 0;
      dh = ch; dl = cl;
      ch = bh; cl = bl;
      bh = ah; bl = al;
      al = (t1l + t2l) | 0;
      ah = (t1h + t2h + ((al >>> 0) < (t1l >>> 0) ? 1 : 0)) | 0;
    }

    // Intermediate hash value
    H0l = H0.low  = (H0l + al);
    H0.high = (H0h + ah + ((H0l >>> 0) < (al >>> 0) ? 1 : 0));
    H1l = H1.low  = (H1l + bl);
    H1.high = (H1h + bh + ((H1l >>> 0) < (bl >>> 0) ? 1 : 0));
    H2l = H2.low  = (H2l + cl);
    H2.high = (H2h + ch + ((H2l >>> 0) < (cl >>> 0) ? 1 : 0));
    H3l = H3.low  = (H3l + dl);
    H3.high = (H3h + dh + ((H3l >>> 0) < (dl >>> 0) ? 1 : 0));
    H4l = H4.low  = (H4l + el);
    H4.high = (H4h + eh + ((H4l >>> 0) < (el >>> 0) ? 1 : 0));
    H5l = H5.low  = (H5l + fl);
    H5.high = (H5h + fh + ((H5l >>> 0) < (fl >>> 0) ? 1 : 0));
    H6l = H6.low  = (H6l + gl);
    H6.high = (H6h + gh + ((H6l >>> 0) < (gl >>> 0) ? 1 : 0));
    H7l = H7.low  = (H7l + hl);
    H7.high = (H7h + hh + ((H7l >>> 0) < (hl >>> 0) ? 1 : 0));
  },

  _doFinalize: function () {
    // Shortcuts
    var data = this._data;
    var dataWords = data.words;

    var nBitsTotal = this._nDataBytes * 8;
    var nBitsLeft = data.sigBytes * 8;

    // Add padding
    dataWords[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);
    dataWords[(((nBitsLeft + 128) >>> 10) << 5) + 30] = Math.floor(nBitsTotal / 0x100000000);
    dataWords[(((nBitsLeft + 128) >>> 10) << 5) + 31] = nBitsTotal;
    data.sigBytes = dataWords.length * 4;

    // Hash final blocks
    this._process();

    // Convert hash to 32-bit word array before returning
    var hash = this._hash.toX32();

    // Return final computed hash
    return hash;
  },

  clone: function () {
    var clone = Hasher.clone.call(this);
    clone._hash = this._hash.clone();

    return clone;
  },

  blockSize: 1024/32
});


module.exports = Hasher._createHelper(SHA512);
module.exports.sha512 = SHA512


},{"./cryptojs":183,"./x64":188}],187:[function(require,module,exports){
(function (process,Buffer){
module.exports = WordArray

/** An array of 32-bit words. */
function WordArray(words, sigBytes) {
  this.words = words || [];

  if (sigBytes != undefined) {
      this.sigBytes = sigBytes;
  } else {
      this.sigBytes = this.words.length * 4;
  }
}

/**
 * Concatenates a word array to this word array.
 *
 * @param {WordArray} wordArray The word array to append.
 *
 * @return {WordArray} This word array.
 *
 * @example
 *
 *     wordArray1.concat(wordArray2);
 */
WordArray.prototype.concat = function (wordArray) {
  if (Buffer.isBuffer(wordArray))
    wordArray = WordArray.fromBuffer(wordArray)

        // Shortcuts
        var thisWords = this.words;
        var thatWords = wordArray.words;
        var thisSigBytes = this.sigBytes;
        var thatSigBytes = wordArray.sigBytes;

        // Clamp excess bits
        this.clamp();

        // Concat
        if (thisSigBytes % 4) {
            // Copy one byte at a time
            for (var i = 0; i < thatSigBytes; i++) {
                var thatByte = (thatWords[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
                thisWords[(thisSigBytes + i) >>> 2] |= thatByte << (24 - ((thisSigBytes + i) % 4) * 8);
            }
        } else if (thatWords.length > 0xffff) {
            // Copy one word at a time
            for (var i = 0; i < thatSigBytes; i += 4) {
                thisWords[(thisSigBytes + i) >>> 2] = thatWords[i >>> 2];
            }
        } else {
            // Copy all words at once
            thisWords.push.apply(thisWords, thatWords);
        }
        this.sigBytes += thatSigBytes;

        // Chainable
        return this;
}

/**
 * Removes insignificant bits.
 *
 */
WordArray.prototype.clamp = function () {
  // Shortcuts
  var words = this.words;
  var sigBytes = this.sigBytes;

  // Clamp
  words[sigBytes >>> 2] &= 0xffffffff << (32 - (sigBytes % 4) * 8);
  words.length = Math.ceil(sigBytes / 4);
}

WordArray.prototype.clone = function() {
  var wa = new WordArray(this.words.slice(0))
  return wa
}

WordArray.prototype.toBuffer = function() {
  var buf = new Buffer(this.words.length * 4)
  for (var i = 0; i < this.words.length; ++i) {
    var w = this.words[i]
    buf.writeUInt32BE(w, i*4, true)
  }
  return buf 
}

WordArray.fromBuffer = function(buf) {
  var len = buf.length
  var dif = len % 4
  var w = []

  if (!process.browser) {
    for (var i = 0; i < len; i += 4) {
      var n = buf.readUInt32BE(i, true) 
      w.push(n)
    }
    return new WordArray(w, buf.length)
  } else { //bug in browserify / buffer
    for (var i = 0; i < len - dif; i += 4) {
      var n = buf.readUInt32BE(i)
      w.push(n)
    }
    var lw = 0x0
    var off = len - dif
    for (var j = 0; j < dif; j += 1) {
      lw |=  (buf.readUInt8(off + j) << ((3-j)*8))
    }
    if (dif > 0)
      w.push(lw)
    return new WordArray(w, buf.length)
  } 
}



}).call(this,require('_process'),require("buffer").Buffer)
},{"_process":152,"buffer":95}],188:[function(require,module,exports){
var X32WordArray = require('./word-array')


function X64Word(high, low) {
  if (!(this instanceof X64Word)) return new X64Word(high, low)
  this.high = high
  this.low = low
}

function X64WordArray (words) {
  this.words = words || [];
}

/**
 * Converts this 64-bit word array to a 32-bit word array.
 */
X64WordArray.prototype.toX32 = function () {
  // Shortcuts
  var x64Words = this.words;
  var x64WordsLength = x64Words.length;

  // Convert
  var x32Words = [];
  for (var i = 0; i < x64WordsLength; i++) {
      var x64Word = x64Words[i];
      x32Words.push(x64Word.high);
      x32Words.push(x64Word.low);
  }

  return new X32WordArray(x32Words, this.sigBytes);
}


module.exports.Word = X64Word
module.exports.WordArray = X64WordArray


},{"./word-array":187}],189:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

module.exports = Stream;

var EE = require('events').EventEmitter;
var inherits = require('inherits');

inherits(Stream, EE);
Stream.Readable = require('readable-stream/readable.js');
Stream.Writable = require('readable-stream/writable.js');
Stream.Duplex = require('readable-stream/duplex.js');
Stream.Transform = require('readable-stream/transform.js');
Stream.PassThrough = require('readable-stream/passthrough.js');

// Backwards-compat with node 0.4.x
Stream.Stream = Stream;



// old-style streams.  Note that the pipe method (the only relevant
// part of this class) is overridden in the Readable class.

function Stream() {
  EE.call(this);
}

Stream.prototype.pipe = function(dest, options) {
  var source = this;

  function ondata(chunk) {
    if (dest.writable) {
      if (false === dest.write(chunk) && source.pause) {
        source.pause();
      }
    }
  }

  source.on('data', ondata);

  function ondrain() {
    if (source.readable && source.resume) {
      source.resume();
    }
  }

  dest.on('drain', ondrain);

  // If the 'end' option is not supplied, dest.end() will be called when
  // source gets the 'end' or 'close' events.  Only dest.end() once.
  if (!dest._isStdio && (!options || options.end !== false)) {
    source.on('end', onend);
    source.on('close', onclose);
  }

  var didOnEnd = false;
  function onend() {
    if (didOnEnd) return;
    didOnEnd = true;

    dest.end();
  }


  function onclose() {
    if (didOnEnd) return;
    didOnEnd = true;

    if (typeof dest.destroy === 'function') dest.destroy();
  }

  // don't leave dangling pipes when there are errors.
  function onerror(er) {
    cleanup();
    if (EE.listenerCount(this, 'error') === 0) {
      throw er; // Unhandled stream error in pipe.
    }
  }

  source.on('error', onerror);
  dest.on('error', onerror);

  // remove all the event listeners that were added.
  function cleanup() {
    source.removeListener('data', ondata);
    dest.removeListener('drain', ondrain);

    source.removeListener('end', onend);
    source.removeListener('close', onclose);

    source.removeListener('error', onerror);
    dest.removeListener('error', onerror);

    source.removeListener('end', cleanup);
    source.removeListener('close', cleanup);

    dest.removeListener('close', cleanup);
  }

  source.on('end', cleanup);
  source.on('close', cleanup);

  dest.on('close', cleanup);

  dest.emit('pipe', source);

  // Allow for unix-like usage: A.pipe(B).pipe(C)
  return dest;
};

},{"events":135,"inherits":139,"readable-stream/duplex.js":164,"readable-stream/passthrough.js":170,"readable-stream/readable.js":171,"readable-stream/transform.js":172,"readable-stream/writable.js":173}],190:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var Buffer = require('buffer').Buffer;

var isBufferEncoding = Buffer.isEncoding
  || function(encoding) {
       switch (encoding && encoding.toLowerCase()) {
         case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true;
         default: return false;
       }
     }


function assertEncoding(encoding) {
  if (encoding && !isBufferEncoding(encoding)) {
    throw new Error('Unknown encoding: ' + encoding);
  }
}

// StringDecoder provides an interface for efficiently splitting a series of
// buffers into a series of JS strings without breaking apart multi-byte
// characters. CESU-8 is handled as part of the UTF-8 encoding.
//
// @TODO Handling all encodings inside a single object makes it very difficult
// to reason about this code, so it should be split up in the future.
// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code
// points as used by CESU-8.
var StringDecoder = exports.StringDecoder = function(encoding) {
  this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
  assertEncoding(encoding);
  switch (this.encoding) {
    case 'utf8':
      // CESU-8 represents each of Surrogate Pair by 3-bytes
      this.surrogateSize = 3;
      break;
    case 'ucs2':
    case 'utf16le':
      // UTF-16 represents each of Surrogate Pair by 2-bytes
      this.surrogateSize = 2;
      this.detectIncompleteChar = utf16DetectIncompleteChar;
      break;
    case 'base64':
      // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
      this.surrogateSize = 3;
      this.detectIncompleteChar = base64DetectIncompleteChar;
      break;
    default:
      this.write = passThroughWrite;
      return;
  }

  // Enough space to store all bytes of a single character. UTF-8 needs 4
  // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate).
  this.charBuffer = new Buffer(6);
  // Number of bytes received for the current incomplete multi-byte character.
  this.charReceived = 0;
  // Number of bytes expected for the current incomplete multi-byte character.
  this.charLength = 0;
};


// write decodes the given buffer and returns it as JS string that is
// guaranteed to not contain any partial multi-byte characters. Any partial
// character found at the end of the buffer is buffered up, and will be
// returned when calling write again with the remaining bytes.
//
// Note: Converting a Buffer containing an orphan surrogate to a String
// currently works, but converting a String to a Buffer (via `new Buffer`, or
// Buffer#write) will replace incomplete surrogates with the unicode
// replacement character. See https://codereview.chromium.org/121173009/ .
StringDecoder.prototype.write = function(buffer) {
  var charStr = '';
  // if our last write ended with an incomplete multibyte character
  while (this.charLength) {
    // determine how many remaining bytes this buffer has to offer for this char
    var available = (buffer.length >= this.charLength - this.charReceived) ?
        this.charLength - this.charReceived :
        buffer.length;

    // add the new bytes to the char buffer
    buffer.copy(this.charBuffer, this.charReceived, 0, available);
    this.charReceived += available;

    if (this.charReceived < this.charLength) {
      // still not enough chars in this buffer? wait for more ...
      return '';
    }

    // remove bytes belonging to the current character from the buffer
    buffer = buffer.slice(available, buffer.length);

    // get the character that was split
    charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);

    // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
    var charCode = charStr.charCodeAt(charStr.length - 1);
    if (charCode >= 0xD800 && charCode <= 0xDBFF) {
      this.charLength += this.surrogateSize;
      charStr = '';
      continue;
    }
    this.charReceived = this.charLength = 0;

    // if there are no more bytes in this buffer, just emit our char
    if (buffer.length === 0) {
      return charStr;
    }
    break;
  }

  // determine and set charLength / charReceived
  this.detectIncompleteChar(buffer);

  var end = buffer.length;
  if (this.charLength) {
    // buffer the incomplete character bytes we got
    buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end);
    end -= this.charReceived;
  }

  charStr += buffer.toString(this.encoding, 0, end);

  var end = charStr.length - 1;
  var charCode = charStr.charCodeAt(end);
  // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
  if (charCode >= 0xD800 && charCode <= 0xDBFF) {
    var size = this.surrogateSize;
    this.charLength += size;
    this.charReceived += size;
    this.charBuffer.copy(this.charBuffer, size, 0, size);
    buffer.copy(this.charBuffer, 0, 0, size);
    return charStr.substring(0, end);
  }

  // or just emit the charStr
  return charStr;
};

// detectIncompleteChar determines if there is an incomplete UTF-8 character at
// the end of the given buffer. If so, it sets this.charLength to the byte
// length that character, and sets this.charReceived to the number of bytes
// that are available for this character.
StringDecoder.prototype.detectIncompleteChar = function(buffer) {
  // determine how many bytes we have to check at the end of this buffer
  var i = (buffer.length >= 3) ? 3 : buffer.length;

  // Figure out if one of the last i bytes of our buffer announces an
  // incomplete char.
  for (; i > 0; i--) {
    var c = buffer[buffer.length - i];

    // See http://en.wikipedia.org/wiki/UTF-8#Description

    // 110XXXXX
    if (i == 1 && c >> 5 == 0x06) {
      this.charLength = 2;
      break;
    }

    // 1110XXXX
    if (i <= 2 && c >> 4 == 0x0E) {
      this.charLength = 3;
      break;
    }

    // 11110XXX
    if (i <= 3 && c >> 3 == 0x1E) {
      this.charLength = 4;
      break;
    }
  }
  this.charReceived = i;
};

StringDecoder.prototype.end = function(buffer) {
  var res = '';
  if (buffer && buffer.length)
    res = this.write(buffer);

  if (this.charReceived) {
    var cr = this.charReceived;
    var buf = this.charBuffer;
    var enc = this.encoding;
    res += buf.slice(0, cr).toString(enc);
  }

  return res;
};

function passThroughWrite(buffer) {
  return buffer.toString(this.encoding);
}

function utf16DetectIncompleteChar(buffer) {
  this.charReceived = buffer.length % 2;
  this.charLength = this.charReceived ? 2 : 0;
}

function base64DetectIncompleteChar(buffer) {
  this.charReceived = buffer.length % 3;
  this.charLength = this.charReceived ? 3 : 0;
}

},{"buffer":95}],191:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var punycode = require('punycode');

exports.parse = urlParse;
exports.resolve = urlResolve;
exports.resolveObject = urlResolveObject;
exports.format = urlFormat;

exports.Url = Url;

function Url() {
  this.protocol = null;
  this.slashes = null;
  this.auth = null;
  this.host = null;
  this.port = null;
  this.hostname = null;
  this.hash = null;
  this.search = null;
  this.query = null;
  this.pathname = null;
  this.path = null;
  this.href = null;
}

// Reference: RFC 3986, RFC 1808, RFC 2396

// define these here so at least they only have to be
// compiled once on the first module load.
var protocolPattern = /^([a-z0-9.+-]+:)/i,
    portPattern = /:[0-9]*$/,

    // RFC 2396: characters reserved for delimiting URLs.
    // We actually just auto-escape these.
    delims = ['<', '>', '"', '`', ' ', '\r', '\n', '\t'],

    // RFC 2396: characters not allowed for various reasons.
    unwise = ['{', '}', '|', '\\', '^', '`'].concat(delims),

    // Allowed by RFCs, but cause of XSS attacks.  Always escape these.
    autoEscape = ['\''].concat(unwise),
    // Characters that are never ever allowed in a hostname.
    // Note that any invalid chars are also handled, but these
    // are the ones that are *expected* to be seen, so we fast-path
    // them.
    nonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape),
    hostEndingChars = ['/', '?', '#'],
    hostnameMaxLen = 255,
    hostnamePartPattern = /^[a-z0-9A-Z_-]{0,63}$/,
    hostnamePartStart = /^([a-z0-9A-Z_-]{0,63})(.*)$/,
    // protocols that can allow "unsafe" and "unwise" chars.
    unsafeProtocol = {
      'javascript': true,
      'javascript:': true
    },
    // protocols that never have a hostname.
    hostlessProtocol = {
      'javascript': true,
      'javascript:': true
    },
    // protocols that always contain a // bit.
    slashedProtocol = {
      'http': true,
      'https': true,
      'ftp': true,
      'gopher': true,
      'file': true,
      'http:': true,
      'https:': true,
      'ftp:': true,
      'gopher:': true,
      'file:': true
    },
    querystring = require('querystring');

function urlParse(url, parseQueryString, slashesDenoteHost) {
  if (url && isObject(url) && url instanceof Url) return url;

  var u = new Url;
  u.parse(url, parseQueryString, slashesDenoteHost);
  return u;
}

Url.prototype.parse = function(url, parseQueryString, slashesDenoteHost) {
  if (!isString(url)) {
    throw new TypeError("Parameter 'url' must be a string, not " + typeof url);
  }

  var rest = url;

  // trim before proceeding.
  // This is to support parse stuff like "  http://foo.com  \n"
  rest = rest.trim();

  var proto = protocolPattern.exec(rest);
  if (proto) {
    proto = proto[0];
    var lowerProto = proto.toLowerCase();
    this.protocol = lowerProto;
    rest = rest.substr(proto.length);
  }

  // figure out if it's got a host
  // user@server is *always* interpreted as a hostname, and url
  // resolution will treat //foo/bar as host=foo,path=bar because that's
  // how the browser resolves relative URLs.
  if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
    var slashes = rest.substr(0, 2) === '//';
    if (slashes && !(proto && hostlessProtocol[proto])) {
      rest = rest.substr(2);
      this.slashes = true;
    }
  }

  if (!hostlessProtocol[proto] &&
      (slashes || (proto && !slashedProtocol[proto]))) {

    // there's a hostname.
    // the first instance of /, ?, ;, or # ends the host.
    //
    // If there is an @ in the hostname, then non-host chars *are* allowed
    // to the left of the last @ sign, unless some host-ending character
    // comes *before* the @-sign.
    // URLs are obnoxious.
    //
    // ex:
    // http://a@b@c/ => user:a@b host:c
    // http://a@b?@c => user:a host:c path:/?@c

    // v0.12 TODO(isaacs): This is not quite how Chrome does things.
    // Review our test case against browsers more comprehensively.

    // find the first instance of any hostEndingChars
    var hostEnd = -1;
    for (var i = 0; i < hostEndingChars.length; i++) {
      var hec = rest.indexOf(hostEndingChars[i]);
      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
        hostEnd = hec;
    }

    // at this point, either we have an explicit point where the
    // auth portion cannot go past, or the last @ char is the decider.
    var auth, atSign;
    if (hostEnd === -1) {
      // atSign can be anywhere.
      atSign = rest.lastIndexOf('@');
    } else {
      // atSign must be in auth portion.
      // http://a@b/c@d => host:b auth:a path:/c@d
      atSign = rest.lastIndexOf('@', hostEnd);
    }

    // Now we have a portion which is definitely the auth.
    // Pull that off.
    if (atSign !== -1) {
      auth = rest.slice(0, atSign);
      rest = rest.slice(atSign + 1);
      this.auth = decodeURIComponent(auth);
    }

    // the host is the remaining to the left of the first non-host char
    hostEnd = -1;
    for (var i = 0; i < nonHostChars.length; i++) {
      var hec = rest.indexOf(nonHostChars[i]);
      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
        hostEnd = hec;
    }
    // if we still have not hit it, then the entire thing is a host.
    if (hostEnd === -1)
      hostEnd = rest.length;

    this.host = rest.slice(0, hostEnd);
    rest = rest.slice(hostEnd);

    // pull out port.
    this.parseHost();

    // we've indicated that there is a hostname,
    // so even if it's empty, it has to be present.
    this.hostname = this.hostname || '';

    // if hostname begins with [ and ends with ]
    // assume that it's an IPv6 address.
    var ipv6Hostname = this.hostname[0] === '[' &&
        this.hostname[this.hostname.length - 1] === ']';

    // validate a little.
    if (!ipv6Hostname) {
      var hostparts = this.hostname.split(/\./);
      for (var i = 0, l = hostparts.length; i < l; i++) {
        var part = hostparts[i];
        if (!part) continue;
        if (!part.match(hostnamePartPattern)) {
          var newpart = '';
          for (var j = 0, k = part.length; j < k; j++) {
            if (part.charCodeAt(j) > 127) {
              // we replace non-ASCII char with a temporary placeholder
              // we need this to make sure size of hostname is not
              // broken by replacing non-ASCII by nothing
              newpart += 'x';
            } else {
              newpart += part[j];
            }
          }
          // we test again with ASCII char only
          if (!newpart.match(hostnamePartPattern)) {
            var validParts = hostparts.slice(0, i);
            var notHost = hostparts.slice(i + 1);
            var bit = part.match(hostnamePartStart);
            if (bit) {
              validParts.push(bit[1]);
              notHost.unshift(bit[2]);
            }
            if (notHost.length) {
              rest = '/' + notHost.join('.') + rest;
            }
            this.hostname = validParts.join('.');
            break;
          }
        }
      }
    }

    if (this.hostname.length > hostnameMaxLen) {
      this.hostname = '';
    } else {
      // hostnames are always lower case.
      this.hostname = this.hostname.toLowerCase();
    }

    if (!ipv6Hostname) {
      // IDNA Support: Returns a puny coded representation of "domain".
      // It only converts the part of the domain name that
      // has non ASCII characters. I.e. it dosent matter if
      // you call it with a domain that already is in ASCII.
      var domainArray = this.hostname.split('.');
      var newOut = [];
      for (var i = 0; i < domainArray.length; ++i) {
        var s = domainArray[i];
        newOut.push(s.match(/[^A-Za-z0-9_-]/) ?
            'xn--' + punycode.encode(s) : s);
      }
      this.hostname = newOut.join('.');
    }

    var p = this.port ? ':' + this.port : '';
    var h = this.hostname || '';
    this.host = h + p;
    this.href += this.host;

    // strip [ and ] from the hostname
    // the host field still retains them, though
    if (ipv6Hostname) {
      this.hostname = this.hostname.substr(1, this.hostname.length - 2);
      if (rest[0] !== '/') {
        rest = '/' + rest;
      }
    }
  }

  // now rest is set to the post-host stuff.
  // chop off any delim chars.
  if (!unsafeProtocol[lowerProto]) {

    // First, make 100% sure that any "autoEscape" chars get
    // escaped, even if encodeURIComponent doesn't think they
    // need to be.
    for (var i = 0, l = autoEscape.length; i < l; i++) {
      var ae = autoEscape[i];
      var esc = encodeURIComponent(ae);
      if (esc === ae) {
        esc = escape(ae);
      }
      rest = rest.split(ae).join(esc);
    }
  }


  // chop off from the tail first.
  var hash = rest.indexOf('#');
  if (hash !== -1) {
    // got a fragment string.
    this.hash = rest.substr(hash);
    rest = rest.slice(0, hash);
  }
  var qm = rest.indexOf('?');
  if (qm !== -1) {
    this.search = rest.substr(qm);
    this.query = rest.substr(qm + 1);
    if (parseQueryString) {
      this.query = querystring.parse(this.query);
    }
    rest = rest.slice(0, qm);
  } else if (parseQueryString) {
    // no query string, but parseQueryString still requested
    this.search = '';
    this.query = {};
  }
  if (rest) this.pathname = rest;
  if (slashedProtocol[lowerProto] &&
      this.hostname && !this.pathname) {
    this.pathname = '/';
  }

  //to support http.request
  if (this.pathname || this.search) {
    var p = this.pathname || '';
    var s = this.search || '';
    this.path = p + s;
  }

  // finally, reconstruct the href based on what has been validated.
  this.href = this.format();
  return this;
};

// format a parsed object into a url string
function urlFormat(obj) {
  // ensure it's an object, and not a string url.
  // If it's an obj, this is a no-op.
  // this way, you can call url_format() on strings
  // to clean up potentially wonky urls.
  if (isString(obj)) obj = urlParse(obj);
  if (!(obj instanceof Url)) return Url.prototype.format.call(obj);
  return obj.format();
}

Url.prototype.format = function() {
  var auth = this.auth || '';
  if (auth) {
    auth = encodeURIComponent(auth);
    auth = auth.replace(/%3A/i, ':');
    auth += '@';
  }

  var protocol = this.protocol || '',
      pathname = this.pathname || '',
      hash = this.hash || '',
      host = false,
      query = '';

  if (this.host) {
    host = auth + this.host;
  } else if (this.hostname) {
    host = auth + (this.hostname.indexOf(':') === -1 ?
        this.hostname :
        '[' + this.hostname + ']');
    if (this.port) {
      host += ':' + this.port;
    }
  }

  if (this.query &&
      isObject(this.query) &&
      Object.keys(this.query).length) {
    query = querystring.stringify(this.query);
  }

  var search = this.search || (query && ('?' + query)) || '';

  if (protocol && protocol.substr(-1) !== ':') protocol += ':';

  // only the slashedProtocols get the //.  Not mailto:, xmpp:, etc.
  // unless they had them to begin with.
  if (this.slashes ||
      (!protocol || slashedProtocol[protocol]) && host !== false) {
    host = '//' + (host || '');
    if (pathname && pathname.charAt(0) !== '/') pathname = '/' + pathname;
  } else if (!host) {
    host = '';
  }

  if (hash && hash.charAt(0) !== '#') hash = '#' + hash;
  if (search && search.charAt(0) !== '?') search = '?' + search;

  pathname = pathname.replace(/[?#]/g, function(match) {
    return encodeURIComponent(match);
  });
  search = search.replace('#', '%23');

  return protocol + host + pathname + search + hash;
};

function urlResolve(source, relative) {
  return urlParse(source, false, true).resolve(relative);
}

Url.prototype.resolve = function(relative) {
  return this.resolveObject(urlParse(relative, false, true)).format();
};

function urlResolveObject(source, relative) {
  if (!source) return relative;
  return urlParse(source, false, true).resolveObject(relative);
}

Url.prototype.resolveObject = function(relative) {
  if (isString(relative)) {
    var rel = new Url();
    rel.parse(relative, false, true);
    relative = rel;
  }

  var result = new Url();
  Object.keys(this).forEach(function(k) {
    result[k] = this[k];
  }, this);

  // hash is always overridden, no matter what.
  // even href="" will remove it.
  result.hash = relative.hash;

  // if the relative url is empty, then there's nothing left to do here.
  if (relative.href === '') {
    result.href = result.format();
    return result;
  }

  // hrefs like //foo/bar always cut to the protocol.
  if (relative.slashes && !relative.protocol) {
    // take everything except the protocol from relative
    Object.keys(relative).forEach(function(k) {
      if (k !== 'protocol')
        result[k] = relative[k];
    });

    //urlParse appends trailing / to urls like http://www.example.com
    if (slashedProtocol[result.protocol] &&
        result.hostname && !result.pathname) {
      result.path = result.pathname = '/';
    }

    result.href = result.format();
    return result;
  }

  if (relative.protocol && relative.protocol !== result.protocol) {
    // if it's a known url protocol, then changing
    // the protocol does weird things
    // first, if it's not file:, then we MUST have a host,
    // and if there was a path
    // to begin with, then we MUST have a path.
    // if it is file:, then the host is dropped,
    // because that's known to be hostless.
    // anything else is assumed to be absolute.
    if (!slashedProtocol[relative.protocol]) {
      Object.keys(relative).forEach(function(k) {
        result[k] = relative[k];
      });
      result.href = result.format();
      return result;
    }

    result.protocol = relative.protocol;
    if (!relative.host && !hostlessProtocol[relative.protocol]) {
      var relPath = (relative.pathname || '').split('/');
      while (relPath.length && !(relative.host = relPath.shift()));
      if (!relative.host) relative.host = '';
      if (!relative.hostname) relative.hostname = '';
      if (relPath[0] !== '') relPath.unshift('');
      if (relPath.length < 2) relPath.unshift('');
      result.pathname = relPath.join('/');
    } else {
      result.pathname = relative.pathname;
    }
    result.search = relative.search;
    result.query = relative.query;
    result.host = relative.host || '';
    result.auth = relative.auth;
    result.hostname = relative.hostname || relative.host;
    result.port = relative.port;
    // to support http.request
    if (result.pathname || result.search) {
      var p = result.pathname || '';
      var s = result.search || '';
      result.path = p + s;
    }
    result.slashes = result.slashes || relative.slashes;
    result.href = result.format();
    return result;
  }

  var isSourceAbs = (result.pathname && result.pathname.charAt(0) === '/'),
      isRelAbs = (
          relative.host ||
          relative.pathname && relative.pathname.charAt(0) === '/'
      ),
      mustEndAbs = (isRelAbs || isSourceAbs ||
                    (result.host && relative.pathname)),
      removeAllDots = mustEndAbs,
      srcPath = result.pathname && result.pathname.split('/') || [],
      relPath = relative.pathname && relative.pathname.split('/') || [],
      psychotic = result.protocol && !slashedProtocol[result.protocol];

  // if the url is a non-slashed url, then relative
  // links like ../.. should be able
  // to crawl up to the hostname, as well.  This is strange.
  // result.protocol has already been set by now.
  // Later on, put the first path part into the host field.
  if (psychotic) {
    result.hostname = '';
    result.port = null;
    if (result.host) {
      if (srcPath[0] === '') srcPath[0] = result.host;
      else srcPath.unshift(result.host);
    }
    result.host = '';
    if (relative.protocol) {
      relative.hostname = null;
      relative.port = null;
      if (relative.host) {
        if (relPath[0] === '') relPath[0] = relative.host;
        else relPath.unshift(relative.host);
      }
      relative.host = null;
    }
    mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === '');
  }

  if (isRelAbs) {
    // it's absolute.
    result.host = (relative.host || relative.host === '') ?
                  relative.host : result.host;
    result.hostname = (relative.hostname || relative.hostname === '') ?
                      relative.hostname : result.hostname;
    result.search = relative.search;
    result.query = relative.query;
    srcPath = relPath;
    // fall through to the dot-handling below.
  } else if (relPath.length) {
    // it's relative
    // throw away the existing file, and take the new path instead.
    if (!srcPath) srcPath = [];
    srcPath.pop();
    srcPath = srcPath.concat(relPath);
    result.search = relative.search;
    result.query = relative.query;
  } else if (!isNullOrUndefined(relative.search)) {
    // just pull out the search.
    // like href='?foo'.
    // Put this after the other two cases because it simplifies the booleans
    if (psychotic) {
      result.hostname = result.host = srcPath.shift();
      //occationaly the auth can get stuck only in host
      //this especialy happens in cases like
      //url.resolveObject('mailto:local1@domain1', 'local2@domain2')
      var authInHost = result.host && result.host.indexOf('@') > 0 ?
                       result.host.split('@') : false;
      if (authInHost) {
        result.auth = authInHost.shift();
        result.host = result.hostname = authInHost.shift();
      }
    }
    result.search = relative.search;
    result.query = relative.query;
    //to support http.request
    if (!isNull(result.pathname) || !isNull(result.search)) {
      result.path = (result.pathname ? result.pathname : '') +
                    (result.search ? result.search : '');
    }
    result.href = result.format();
    return result;
  }

  if (!srcPath.length) {
    // no path at all.  easy.
    // we've already handled the other stuff above.
    result.pathname = null;
    //to support http.request
    if (result.search) {
      result.path = '/' + result.search;
    } else {
      result.path = null;
    }
    result.href = result.format();
    return result;
  }

  // if a url ENDs in . or .., then it must get a trailing slash.
  // however, if it ends in anything else non-slashy,
  // then it must NOT get a trailing slash.
  var last = srcPath.slice(-1)[0];
  var hasTrailingSlash = (
      (result.host || relative.host) && (last === '.' || last === '..') ||
      last === '');

  // strip single dots, resolve double dots to parent dir
  // if the path tries to go above the root, `up` ends up > 0
  var up = 0;
  for (var i = srcPath.length; i >= 0; i--) {
    last = srcPath[i];
    if (last == '.') {
      srcPath.splice(i, 1);
    } else if (last === '..') {
      srcPath.splice(i, 1);
      up++;
    } else if (up) {
      srcPath.splice(i, 1);
      up--;
    }
  }

  // if the path is allowed to go above the root, restore leading ..s
  if (!mustEndAbs && !removeAllDots) {
    for (; up--; up) {
      srcPath.unshift('..');
    }
  }

  if (mustEndAbs && srcPath[0] !== '' &&
      (!srcPath[0] || srcPath[0].charAt(0) !== '/')) {
    srcPath.unshift('');
  }

  if (hasTrailingSlash && (srcPath.join('/').substr(-1) !== '/')) {
    srcPath.push('');
  }

  var isAbsolute = srcPath[0] === '' ||
      (srcPath[0] && srcPath[0].charAt(0) === '/');

  // put the host back
  if (psychotic) {
    result.hostname = result.host = isAbsolute ? '' :
                                    srcPath.length ? srcPath.shift() : '';
    //occationaly the auth can get stuck only in host
    //this especialy happens in cases like
    //url.resolveObject('mailto:local1@domain1', 'local2@domain2')
    var authInHost = result.host && result.host.indexOf('@') > 0 ?
                     result.host.split('@') : false;
    if (authInHost) {
      result.auth = authInHost.shift();
      result.host = result.hostname = authInHost.shift();
    }
  }

  mustEndAbs = mustEndAbs || (result.host && srcPath.length);

  if (mustEndAbs && !isAbsolute) {
    srcPath.unshift('');
  }

  if (!srcPath.length) {
    result.pathname = null;
    result.path = null;
  } else {
    result.pathname = srcPath.join('/');
  }

  //to support request.http
  if (!isNull(result.pathname) || !isNull(result.search)) {
    result.path = (result.pathname ? result.pathname : '') +
                  (result.search ? result.search : '');
  }
  result.auth = relative.auth || result.auth;
  result.slashes = result.slashes || relative.slashes;
  result.href = result.format();
  return result;
};

Url.prototype.parseHost = function() {
  var host = this.host;
  var port = portPattern.exec(host);
  if (port) {
    port = port[0];
    if (port !== ':') {
      this.port = port.substr(1);
    }
    host = host.substr(0, host.length - port.length);
  }
  if (host) this.hostname = host;
};

function isString(arg) {
  return typeof arg === "string";
}

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}

function isNull(arg) {
  return arg === null;
}
function isNullOrUndefined(arg) {
  return  arg == null;
}

},{"punycode":159,"querystring":162}],192:[function(require,module,exports){
(function (global){

/**
 * Module exports.
 */

module.exports = deprecate;

/**
 * Mark that a method should not be used.
 * Returns a modified function which warns once by default.
 *
 * If `localStorage.noDeprecation = true` is set, then it is a no-op.
 *
 * If `localStorage.throwDeprecation = true` is set, then deprecated functions
 * will throw an Error when invoked.
 *
 * If `localStorage.traceDeprecation = true` is set, then deprecated functions
 * will invoke `console.trace()` instead of `console.error()`.
 *
 * @param {Function} fn - the function to deprecate
 * @param {String} msg - the string to print to the console when `fn` is invoked
 * @returns {Function} a new "deprecated" version of `fn`
 * @api public
 */

function deprecate (fn, msg) {
  if (config('noDeprecation')) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (config('throwDeprecation')) {
        throw new Error(msg);
      } else if (config('traceDeprecation')) {
        console.trace(msg);
      } else {
        console.warn(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
}

/**
 * Checks `localStorage` for boolean values for the given `name`.
 *
 * @param {String} name
 * @returns {Boolean}
 * @api private
 */

function config (name) {
  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
  try {
    if (!global.localStorage) return false;
  } catch (_) {
    return false;
  }
  var val = global.localStorage[name];
  if (null == val) return false;
  return String(val).toLowerCase() === 'true';
}

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],193:[function(require,module,exports){
module.exports = function isBuffer(arg) {
  return arg && typeof arg === 'object'
    && typeof arg.copy === 'function'
    && typeof arg.fill === 'function'
    && typeof arg.readUInt8 === 'function';
}
},{}],194:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
  if (!isString(f)) {
    var objects = [];
    for (var i = 0; i < arguments.length; i++) {
      objects.push(inspect(arguments[i]));
    }
    return objects.join(' ');
  }

  var i = 1;
  var args = arguments;
  var len = args.length;
  var str = String(f).replace(formatRegExp, function(x) {
    if (x === '%%') return '%';
    if (i >= len) return x;
    switch (x) {
      case '%s': return String(args[i++]);
      case '%d': return Number(args[i++]);
      case '%j':
        try {
          return JSON.stringify(args[i++]);
        } catch (_) {
          return '[Circular]';
        }
      default:
        return x;
    }
  });
  for (var x = args[i]; i < len; x = args[++i]) {
    if (isNull(x) || !isObject(x)) {
      str += ' ' + x;
    } else {
      str += ' ' + inspect(x);
    }
  }
  return str;
};


// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
  // Allow for deprecating things in the process of starting up.
  if (isUndefined(global.process)) {
    return function() {
      return exports.deprecate(fn, msg).apply(this, arguments);
    };
  }

  if (process.noDeprecation === true) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (process.throwDeprecation) {
        throw new Error(msg);
      } else if (process.traceDeprecation) {
        console.trace(msg);
      } else {
        console.error(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
};


var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
  if (isUndefined(debugEnviron))
    debugEnviron = process.env.NODE_DEBUG || '';
  set = set.toUpperCase();
  if (!debugs[set]) {
    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
      var pid = process.pid;
      debugs[set] = function() {
        var msg = exports.format.apply(exports, arguments);
        console.error('%s %d: %s', set, pid, msg);
      };
    } else {
      debugs[set] = function() {};
    }
  }
  return debugs[set];
};


/**
 * Echos the value of a value. Trys to print the value out
 * in the best way possible given the different types.
 *
 * @param {Object} obj The object to print out.
 * @param {Object} opts Optional options object that alters the output.
 */
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
  // default options
  var ctx = {
    seen: [],
    stylize: stylizeNoColor
  };
  // legacy...
  if (arguments.length >= 3) ctx.depth = arguments[2];
  if (arguments.length >= 4) ctx.colors = arguments[3];
  if (isBoolean(opts)) {
    // legacy...
    ctx.showHidden = opts;
  } else if (opts) {
    // got an "options" object
    exports._extend(ctx, opts);
  }
  // set default options
  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
  if (isUndefined(ctx.depth)) ctx.depth = 2;
  if (isUndefined(ctx.colors)) ctx.colors = false;
  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
  if (ctx.colors) ctx.stylize = stylizeWithColor;
  return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;


// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
  'bold' : [1, 22],
  'italic' : [3, 23],
  'underline' : [4, 24],
  'inverse' : [7, 27],
  'white' : [37, 39],
  'grey' : [90, 39],
  'black' : [30, 39],
  'blue' : [34, 39],
  'cyan' : [36, 39],
  'green' : [32, 39],
  'magenta' : [35, 39],
  'red' : [31, 39],
  'yellow' : [33, 39]
};

// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
  'special': 'cyan',
  'number': 'yellow',
  'boolean': 'yellow',
  'undefined': 'grey',
  'null': 'bold',
  'string': 'green',
  'date': 'magenta',
  // "name": intentionally not styling
  'regexp': 'red'
};


function stylizeWithColor(str, styleType) {
  var style = inspect.styles[styleType];

  if (style) {
    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
           '\u001b[' + inspect.colors[style][1] + 'm';
  } else {
    return str;
  }
}


function stylizeNoColor(str, styleType) {
  return str;
}


function arrayToHash(array) {
  var hash = {};

  array.forEach(function(val, idx) {
    hash[val] = true;
  });

  return hash;
}


function formatValue(ctx, value, recurseTimes) {
  // Provide a hook for user-specified inspect functions.
  // Check that value is an object with an inspect function on it
  if (ctx.customInspect &&
      value &&
      isFunction(value.inspect) &&
      // Filter out the util module, it's inspect function is special
      value.inspect !== exports.inspect &&
      // Also filter out any prototype objects using the circular check.
      !(value.constructor && value.constructor.prototype === value)) {
    var ret = value.inspect(recurseTimes, ctx);
    if (!isString(ret)) {
      ret = formatValue(ctx, ret, recurseTimes);
    }
    return ret;
  }

  // Primitive types cannot have properties
  var primitive = formatPrimitive(ctx, value);
  if (primitive) {
    return primitive;
  }

  // Look up the keys of the object.
  var keys = Object.keys(value);
  var visibleKeys = arrayToHash(keys);

  if (ctx.showHidden) {
    keys = Object.getOwnPropertyNames(value);
  }

  // IE doesn't make error fields non-enumerable
  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
  if (isError(value)
      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
    return formatError(value);
  }

  // Some type of object without properties can be shortcutted.
  if (keys.length === 0) {
    if (isFunction(value)) {
      var name = value.name ? ': ' + value.name : '';
      return ctx.stylize('[Function' + name + ']', 'special');
    }
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    }
    if (isDate(value)) {
      return ctx.stylize(Date.prototype.toString.call(value), 'date');
    }
    if (isError(value)) {
      return formatError(value);
    }
  }

  var base = '', array = false, braces = ['{', '}'];

  // Make Array say that they are Array
  if (isArray(value)) {
    array = true;
    braces = ['[', ']'];
  }

  // Make functions say that they are functions
  if (isFunction(value)) {
    var n = value.name ? ': ' + value.name : '';
    base = ' [Function' + n + ']';
  }

  // Make RegExps say that they are RegExps
  if (isRegExp(value)) {
    base = ' ' + RegExp.prototype.toString.call(value);
  }

  // Make dates with properties first say the date
  if (isDate(value)) {
    base = ' ' + Date.prototype.toUTCString.call(value);
  }

  // Make error with message first say the error
  if (isError(value)) {
    base = ' ' + formatError(value);
  }

  if (keys.length === 0 && (!array || value.length == 0)) {
    return braces[0] + base + braces[1];
  }

  if (recurseTimes < 0) {
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    } else {
      return ctx.stylize('[Object]', 'special');
    }
  }

  ctx.seen.push(value);

  var output;
  if (array) {
    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
  } else {
    output = keys.map(function(key) {
      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
    });
  }

  ctx.seen.pop();

  return reduceToSingleString(output, base, braces);
}


function formatPrimitive(ctx, value) {
  if (isUndefined(value))
    return ctx.stylize('undefined', 'undefined');
  if (isString(value)) {
    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
                                             .replace(/'/g, "\\'")
                                             .replace(/\\"/g, '"') + '\'';
    return ctx.stylize(simple, 'string');
  }
  if (isNumber(value))
    return ctx.stylize('' + value, 'number');
  if (isBoolean(value))
    return ctx.stylize('' + value, 'boolean');
  // For some reason typeof null is "object", so special case here.
  if (isNull(value))
    return ctx.stylize('null', 'null');
}


function formatError(value) {
  return '[' + Error.prototype.toString.call(value) + ']';
}


function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
  var output = [];
  for (var i = 0, l = value.length; i < l; ++i) {
    if (hasOwnProperty(value, String(i))) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          String(i), true));
    } else {
      output.push('');
    }
  }
  keys.forEach(function(key) {
    if (!key.match(/^\d+$/)) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          key, true));
    }
  });
  return output;
}


function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
  var name, str, desc;
  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
  if (desc.get) {
    if (desc.set) {
      str = ctx.stylize('[Getter/Setter]', 'special');
    } else {
      str = ctx.stylize('[Getter]', 'special');
    }
  } else {
    if (desc.set) {
      str = ctx.stylize('[Setter]', 'special');
    }
  }
  if (!hasOwnProperty(visibleKeys, key)) {
    name = '[' + key + ']';
  }
  if (!str) {
    if (ctx.seen.indexOf(desc.value) < 0) {
      if (isNull(recurseTimes)) {
        str = formatValue(ctx, desc.value, null);
      } else {
        str = formatValue(ctx, desc.value, recurseTimes - 1);
      }
      if (str.indexOf('\n') > -1) {
        if (array) {
          str = str.split('\n').map(function(line) {
            return '  ' + line;
          }).join('\n').substr(2);
        } else {
          str = '\n' + str.split('\n').map(function(line) {
            return '   ' + line;
          }).join('\n');
        }
      }
    } else {
      str = ctx.stylize('[Circular]', 'special');
    }
  }
  if (isUndefined(name)) {
    if (array && key.match(/^\d+$/)) {
      return str;
    }
    name = JSON.stringify('' + key);
    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
      name = name.substr(1, name.length - 2);
      name = ctx.stylize(name, 'name');
    } else {
      name = name.replace(/'/g, "\\'")
                 .replace(/\\"/g, '"')
                 .replace(/(^"|"$)/g, "'");
      name = ctx.stylize(name, 'string');
    }
  }

  return name + ': ' + str;
}


function reduceToSingleString(output, base, braces) {
  var numLinesEst = 0;
  var length = output.reduce(function(prev, cur) {
    numLinesEst++;
    if (cur.indexOf('\n') >= 0) numLinesEst++;
    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
  }, 0);

  if (length > 60) {
    return braces[0] +
           (base === '' ? '' : base + '\n ') +
           ' ' +
           output.join(',\n  ') +
           ' ' +
           braces[1];
  }

  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}


// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
  return Array.isArray(ar);
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return isObject(e) &&
      (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = require('./support/isBuffer');

function objectToString(o) {
  return Object.prototype.toString.call(o);
}


function pad(n) {
  return n < 10 ? '0' + n.toString(10) : n.toString(10);
}


var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
              'Oct', 'Nov', 'Dec'];

// 26 Feb 16:19:34
function timestamp() {
  var d = new Date();
  var time = [pad(d.getHours()),
              pad(d.getMinutes()),
              pad(d.getSeconds())].join(':');
  return [d.getDate(), months[d.getMonth()], time].join(' ');
}


// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};


/**
 * Inherit the prototype methods from one constructor into another.
 *
 * The Function.prototype.inherits from lang.js rewritten as a standalone
 * function (not on Function.prototype). NOTE: If this file is to be loaded
 * during bootstrapping this function needs to be rewritten using some native
 * functions as prototype setup using normal JavaScript does not work as
 * expected during bootstrapping (see mirror.js in r114903).
 *
 * @param {function} ctor Constructor function which needs to inherit the
 *     prototype.
 * @param {function} superCtor Constructor function to inherit prototype from.
 */
exports.inherits = require('inherits');

exports._extend = function(origin, add) {
  // Don't do anything if add isn't an object
  if (!add || !isObject(add)) return origin;

  var keys = Object.keys(add);
  var i = keys.length;
  while (i--) {
    origin[keys[i]] = add[keys[i]];
  }
  return origin;
};

function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":193,"_process":152,"inherits":139}],195:[function(require,module,exports){
var indexOf = require('indexof');

var Object_keys = function (obj) {
    if (Object.keys) return Object.keys(obj)
    else {
        var res = [];
        for (var key in obj) res.push(key)
        return res;
    }
};

var forEach = function (xs, fn) {
    if (xs.forEach) return xs.forEach(fn)
    else for (var i = 0; i < xs.length; i++) {
        fn(xs[i], i, xs);
    }
};

var defineProp = (function() {
    try {
        Object.defineProperty({}, '_', {});
        return function(obj, name, value) {
            Object.defineProperty(obj, name, {
                writable: true,
                enumerable: false,
                configurable: true,
                value: value
            })
        };
    } catch(e) {
        return function(obj, name, value) {
            obj[name] = value;
        };
    }
}());

var globals = ['Array', 'Boolean', 'Date', 'Error', 'EvalError', 'Function',
'Infinity', 'JSON', 'Math', 'NaN', 'Number', 'Object', 'RangeError',
'ReferenceError', 'RegExp', 'String', 'SyntaxError', 'TypeError', 'URIError',
'decodeURI', 'decodeURIComponent', 'encodeURI', 'encodeURIComponent', 'escape',
'eval', 'isFinite', 'isNaN', 'parseFloat', 'parseInt', 'undefined', 'unescape'];

function Context() {}
Context.prototype = {};

var Script = exports.Script = function NodeScript (code) {
    if (!(this instanceof Script)) return new Script(code);
    this.code = code;
};

Script.prototype.runInContext = function (context) {
    if (!(context instanceof Context)) {
        throw new TypeError("needs a 'context' argument.");
    }
    
    var iframe = document.createElement('iframe');
    if (!iframe.style) iframe.style = {};
    iframe.style.display = 'none';
    
    document.body.appendChild(iframe);
    
    var win = iframe.contentWindow;
    var wEval = win.eval, wExecScript = win.execScript;

    if (!wEval && wExecScript) {
        // win.eval() magically appears when this is called in IE:
        wExecScript.call(win, 'null');
        wEval = win.eval;
    }
    
    forEach(Object_keys(context), function (key) {
        win[key] = context[key];
    });
    forEach(globals, function (key) {
        if (context[key]) {
            win[key] = context[key];
        }
    });
    
    var winKeys = Object_keys(win);

    var res = wEval.call(win, this.code);
    
    forEach(Object_keys(win), function (key) {
        // Avoid copying circular objects like `top` and `window` by only
        // updating existing context properties or new properties in the `win`
        // that was only introduced after the eval.
        if (key in context || indexOf(winKeys, key) === -1) {
            context[key] = win[key];
        }
    });

    forEach(globals, function (key) {
        if (!(key in context)) {
            defineProp(context, key, win[key]);
        }
    });
    
    document.body.removeChild(iframe);
    
    return res;
};

Script.prototype.runInThisContext = function () {
    return eval(this.code); // maybe...
};

Script.prototype.runInNewContext = function (context) {
    var ctx = Script.createContext(context);
    var res = this.runInContext(ctx);

    forEach(Object_keys(ctx), function (key) {
        context[key] = ctx[key];
    });

    return res;
};

forEach(Object_keys(Script.prototype), function (name) {
    exports[name] = Script[name] = function (code) {
        var s = Script(code);
        return s[name].apply(s, [].slice.call(arguments, 1));
    };
});

exports.createScript = function (code) {
    return exports.Script(code);
};

exports.createContext = Script.createContext = function (context) {
    var copy = new Context();
    if(typeof context === 'object') {
        forEach(Object_keys(context), function (key) {
            copy[key] = context[key];
        });
    }
    return copy;
};

},{"indexof":138}],196:[function(require,module,exports){
'use strict';

var blake = require('./lib/blake');
var keccak = require('./lib/keccak').keccak_512;
var skein = require('./lib/skein');
var luffa = require('./lib/luffa');
var simd = require('./lib/simd');
var shavite = require('./lib/shavite');
var cubehash = require('./lib/cubehash');
var jh = require('./lib/jh');
var echo = require('./lib/echo');
var groestl = require('./lib/groestl');
var bmw = require('./lib/bmw');
var h = require('./lib/helper');

var x11hash = module.exports;

module.exports.blake = function(str,format, output) {
  return blake(str,format,output);
}

module.exports.bmw = function(str,format, output) {
  return bmw(str,format,output);
}

module.exports.cubehash = function(str,format, output) {
  return cubehash(str,format,output);
}

module.exports.echo = function(str,format, output) {
  return echo(str,format,output);
}

module.exports.groestl = function(str,format, output) {
  return groestl(str,format,output);
}

module.exports.jh = function(str,format, output) {
  return jh(str,format,output);
}

module.exports.keccak = function(str,format, output) {
  var msg = str;
  if (format === 2) {
    msg = h.int32Buffer2Bytes(str);
  }
  if (output === 1) {
    return keccak['array'](msg);
  } else if (output === 2) {
    return h.bytes2Int32Buffer(keccak['array'](msg));
  } else {
    return keccak['hex'](msg);
  }
}

module.exports.luffa = function(str,format, output) {
  return luffa(str,format,output);
}

module.exports.shavite = function(str,format, output) {
  return shavite(str,format,output);
}

module.exports.simd = function(str,format, output) {
  return simd(str,format,output);
}

module.exports.skein = function(str,format, output) {
  return skein(str,format,output);
}


module.exports.digest = function(str,format, output) {
  var a = blake(str,format,2);
  a = bmw(a,2,2);
  a = groestl(a,2,2);
  a = skein(a,2,2);
  a = jh(a,2,2);
  a = this.keccak(a,2,1);
  a = luffa(a,1,2);
  a = cubehash(a,2,2);
  a = shavite(a,2,2);
  a = simd(a,2,2);
  a = echo(a,2,2);
  a = a.slice(0,8);
  if (output === 1) {
    return a;
  }
  else if (output === 2) {
    return h.int32Buffer2Bytes(a);
  }
  else {
    return h.int32ArrayToHexString(a);
  }
}

},{"./lib/blake":198,"./lib/bmw":199,"./lib/cubehash":200,"./lib/echo":201,"./lib/groestl":202,"./lib/helper":203,"./lib/jh":204,"./lib/keccak":205,"./lib/luffa":206,"./lib/shavite":208,"./lib/simd":209,"./lib/skein":210}],197:[function(require,module,exports){
var op = require('./op');

var AES0 = [
    0xA56363C6, 0x847C7CF8, 0x997777EE, 0x8D7B7BF6,
    0x0DF2F2FF, 0xBD6B6BD6, 0xB16F6FDE, 0x54C5C591,
    0x50303060, 0x03010102, 0xA96767CE, 0x7D2B2B56,
    0x19FEFEE7, 0x62D7D7B5, 0xE6ABAB4D, 0x9A7676EC,
    0x45CACA8F, 0x9D82821F, 0x40C9C989, 0x877D7DFA,
    0x15FAFAEF, 0xEB5959B2, 0xC947478E, 0x0BF0F0FB,
    0xECADAD41, 0x67D4D4B3, 0xFDA2A25F, 0xEAAFAF45,
    0xBF9C9C23, 0xF7A4A453, 0x967272E4, 0x5BC0C09B,
    0xC2B7B775, 0x1CFDFDE1, 0xAE93933D, 0x6A26264C,
    0x5A36366C, 0x413F3F7E, 0x02F7F7F5, 0x4FCCCC83,
    0x5C343468, 0xF4A5A551, 0x34E5E5D1, 0x08F1F1F9,
    0x937171E2, 0x73D8D8AB, 0x53313162, 0x3F15152A,
    0x0C040408, 0x52C7C795, 0x65232346, 0x5EC3C39D,
    0x28181830, 0xA1969637, 0x0F05050A, 0xB59A9A2F,
    0x0907070E, 0x36121224, 0x9B80801B, 0x3DE2E2DF,
    0x26EBEBCD, 0x6927274E, 0xCDB2B27F, 0x9F7575EA,
    0x1B090912, 0x9E83831D, 0x742C2C58, 0x2E1A1A34,
    0x2D1B1B36, 0xB26E6EDC, 0xEE5A5AB4, 0xFBA0A05B,
    0xF65252A4, 0x4D3B3B76, 0x61D6D6B7, 0xCEB3B37D,
    0x7B292952, 0x3EE3E3DD, 0x712F2F5E, 0x97848413,
    0xF55353A6, 0x68D1D1B9, 0x00000000, 0x2CEDEDC1,
    0x60202040, 0x1FFCFCE3, 0xC8B1B179, 0xED5B5BB6,
    0xBE6A6AD4, 0x46CBCB8D, 0xD9BEBE67, 0x4B393972,
    0xDE4A4A94, 0xD44C4C98, 0xE85858B0, 0x4ACFCF85,
    0x6BD0D0BB, 0x2AEFEFC5, 0xE5AAAA4F, 0x16FBFBED,
    0xC5434386, 0xD74D4D9A, 0x55333366, 0x94858511,
    0xCF45458A, 0x10F9F9E9, 0x06020204, 0x817F7FFE,
    0xF05050A0, 0x443C3C78, 0xBA9F9F25, 0xE3A8A84B,
    0xF35151A2, 0xFEA3A35D, 0xC0404080, 0x8A8F8F05,
    0xAD92923F, 0xBC9D9D21, 0x48383870, 0x04F5F5F1,
    0xDFBCBC63, 0xC1B6B677, 0x75DADAAF, 0x63212142,
    0x30101020, 0x1AFFFFE5, 0x0EF3F3FD, 0x6DD2D2BF,
    0x4CCDCD81, 0x140C0C18, 0x35131326, 0x2FECECC3,
    0xE15F5FBE, 0xA2979735, 0xCC444488, 0x3917172E,
    0x57C4C493, 0xF2A7A755, 0x827E7EFC, 0x473D3D7A,
    0xAC6464C8, 0xE75D5DBA, 0x2B191932, 0x957373E6,
    0xA06060C0, 0x98818119, 0xD14F4F9E, 0x7FDCDCA3,
    0x66222244, 0x7E2A2A54, 0xAB90903B, 0x8388880B,
    0xCA46468C, 0x29EEEEC7, 0xD3B8B86B, 0x3C141428,
    0x79DEDEA7, 0xE25E5EBC, 0x1D0B0B16, 0x76DBDBAD,
    0x3BE0E0DB, 0x56323264, 0x4E3A3A74, 0x1E0A0A14,
    0xDB494992, 0x0A06060C, 0x6C242448, 0xE45C5CB8,
    0x5DC2C29F, 0x6ED3D3BD, 0xEFACAC43, 0xA66262C4,
    0xA8919139, 0xA4959531, 0x37E4E4D3, 0x8B7979F2,
    0x32E7E7D5, 0x43C8C88B, 0x5937376E, 0xB76D6DDA,
    0x8C8D8D01, 0x64D5D5B1, 0xD24E4E9C, 0xE0A9A949,
    0xB46C6CD8, 0xFA5656AC, 0x07F4F4F3, 0x25EAEACF,
    0xAF6565CA, 0x8E7A7AF4, 0xE9AEAE47, 0x18080810,
    0xD5BABA6F, 0x887878F0, 0x6F25254A, 0x722E2E5C,
    0x241C1C38, 0xF1A6A657, 0xC7B4B473, 0x51C6C697,
    0x23E8E8CB, 0x7CDDDDA1, 0x9C7474E8, 0x211F1F3E,
    0xDD4B4B96, 0xDCBDBD61, 0x868B8B0D, 0x858A8A0F,
    0x907070E0, 0x423E3E7C, 0xC4B5B571, 0xAA6666CC,
    0xD8484890, 0x05030306, 0x01F6F6F7, 0x120E0E1C,
    0xA36161C2, 0x5F35356A, 0xF95757AE, 0xD0B9B969,
    0x91868617, 0x58C1C199, 0x271D1D3A, 0xB99E9E27,
    0x38E1E1D9, 0x13F8F8EB, 0xB398982B, 0x33111122,
    0xBB6969D2, 0x70D9D9A9, 0x898E8E07, 0xA7949433,
    0xB69B9B2D, 0x221E1E3C, 0x92878715, 0x20E9E9C9,
    0x49CECE87, 0xFF5555AA, 0x78282850, 0x7ADFDFA5,
    0x8F8C8C03, 0xF8A1A159, 0x80898909, 0x170D0D1A,
    0xDABFBF65, 0x31E6E6D7, 0xC6424284, 0xB86868D0,
    0xC3414182, 0xB0999929, 0x772D2D5A, 0x110F0F1E,
    0xCBB0B07B, 0xFC5454A8, 0xD6BBBB6D, 0x3A16162C
];

var AES1 = [
    0x6363C6A5, 0x7C7CF884, 0x7777EE99, 0x7B7BF68D,
    0xF2F2FF0D, 0x6B6BD6BD, 0x6F6FDEB1, 0xC5C59154,
    0x30306050, 0x01010203, 0x6767CEA9, 0x2B2B567D,
    0xFEFEE719, 0xD7D7B562, 0xABAB4DE6, 0x7676EC9A,
    0xCACA8F45, 0x82821F9D, 0xC9C98940, 0x7D7DFA87,
    0xFAFAEF15, 0x5959B2EB, 0x47478EC9, 0xF0F0FB0B,
    0xADAD41EC, 0xD4D4B367, 0xA2A25FFD, 0xAFAF45EA,
    0x9C9C23BF, 0xA4A453F7, 0x7272E496, 0xC0C09B5B,
    0xB7B775C2, 0xFDFDE11C, 0x93933DAE, 0x26264C6A,
    0x36366C5A, 0x3F3F7E41, 0xF7F7F502, 0xCCCC834F,
    0x3434685C, 0xA5A551F4, 0xE5E5D134, 0xF1F1F908,
    0x7171E293, 0xD8D8AB73, 0x31316253, 0x15152A3F,
    0x0404080C, 0xC7C79552, 0x23234665, 0xC3C39D5E,
    0x18183028, 0x969637A1, 0x05050A0F, 0x9A9A2FB5,
    0x07070E09, 0x12122436, 0x80801B9B, 0xE2E2DF3D,
    0xEBEBCD26, 0x27274E69, 0xB2B27FCD, 0x7575EA9F,
    0x0909121B, 0x83831D9E, 0x2C2C5874, 0x1A1A342E,
    0x1B1B362D, 0x6E6EDCB2, 0x5A5AB4EE, 0xA0A05BFB,
    0x5252A4F6, 0x3B3B764D, 0xD6D6B761, 0xB3B37DCE,
    0x2929527B, 0xE3E3DD3E, 0x2F2F5E71, 0x84841397,
    0x5353A6F5, 0xD1D1B968, 0x00000000, 0xEDEDC12C,
    0x20204060, 0xFCFCE31F, 0xB1B179C8, 0x5B5BB6ED,
    0x6A6AD4BE, 0xCBCB8D46, 0xBEBE67D9, 0x3939724B,
    0x4A4A94DE, 0x4C4C98D4, 0x5858B0E8, 0xCFCF854A,
    0xD0D0BB6B, 0xEFEFC52A, 0xAAAA4FE5, 0xFBFBED16,
    0x434386C5, 0x4D4D9AD7, 0x33336655, 0x85851194,
    0x45458ACF, 0xF9F9E910, 0x02020406, 0x7F7FFE81,
    0x5050A0F0, 0x3C3C7844, 0x9F9F25BA, 0xA8A84BE3,
    0x5151A2F3, 0xA3A35DFE, 0x404080C0, 0x8F8F058A,
    0x92923FAD, 0x9D9D21BC, 0x38387048, 0xF5F5F104,
    0xBCBC63DF, 0xB6B677C1, 0xDADAAF75, 0x21214263,
    0x10102030, 0xFFFFE51A, 0xF3F3FD0E, 0xD2D2BF6D,
    0xCDCD814C, 0x0C0C1814, 0x13132635, 0xECECC32F,
    0x5F5FBEE1, 0x979735A2, 0x444488CC, 0x17172E39,
    0xC4C49357, 0xA7A755F2, 0x7E7EFC82, 0x3D3D7A47,
    0x6464C8AC, 0x5D5DBAE7, 0x1919322B, 0x7373E695,
    0x6060C0A0, 0x81811998, 0x4F4F9ED1, 0xDCDCA37F,
    0x22224466, 0x2A2A547E, 0x90903BAB, 0x88880B83,
    0x46468CCA, 0xEEEEC729, 0xB8B86BD3, 0x1414283C,
    0xDEDEA779, 0x5E5EBCE2, 0x0B0B161D, 0xDBDBAD76,
    0xE0E0DB3B, 0x32326456, 0x3A3A744E, 0x0A0A141E,
    0x494992DB, 0x06060C0A, 0x2424486C, 0x5C5CB8E4,
    0xC2C29F5D, 0xD3D3BD6E, 0xACAC43EF, 0x6262C4A6,
    0x919139A8, 0x959531A4, 0xE4E4D337, 0x7979F28B,
    0xE7E7D532, 0xC8C88B43, 0x37376E59, 0x6D6DDAB7,
    0x8D8D018C, 0xD5D5B164, 0x4E4E9CD2, 0xA9A949E0,
    0x6C6CD8B4, 0x5656ACFA, 0xF4F4F307, 0xEAEACF25,
    0x6565CAAF, 0x7A7AF48E, 0xAEAE47E9, 0x08081018,
    0xBABA6FD5, 0x7878F088, 0x25254A6F, 0x2E2E5C72,
    0x1C1C3824, 0xA6A657F1, 0xB4B473C7, 0xC6C69751,
    0xE8E8CB23, 0xDDDDA17C, 0x7474E89C, 0x1F1F3E21,
    0x4B4B96DD, 0xBDBD61DC, 0x8B8B0D86, 0x8A8A0F85,
    0x7070E090, 0x3E3E7C42, 0xB5B571C4, 0x6666CCAA,
    0x484890D8, 0x03030605, 0xF6F6F701, 0x0E0E1C12,
    0x6161C2A3, 0x35356A5F, 0x5757AEF9, 0xB9B969D0,
    0x86861791, 0xC1C19958, 0x1D1D3A27, 0x9E9E27B9,
    0xE1E1D938, 0xF8F8EB13, 0x98982BB3, 0x11112233,
    0x6969D2BB, 0xD9D9A970, 0x8E8E0789, 0x949433A7,
    0x9B9B2DB6, 0x1E1E3C22, 0x87871592, 0xE9E9C920,
    0xCECE8749, 0x5555AAFF, 0x28285078, 0xDFDFA57A,
    0x8C8C038F, 0xA1A159F8, 0x89890980, 0x0D0D1A17,
    0xBFBF65DA, 0xE6E6D731, 0x424284C6, 0x6868D0B8,
    0x414182C3, 0x999929B0, 0x2D2D5A77, 0x0F0F1E11,
    0xB0B07BCB, 0x5454A8FC, 0xBBBB6DD6, 0x16162C3A
];

var AES2 = [
    0x63C6A563, 0x7CF8847C, 0x77EE9977, 0x7BF68D7B,
    0xF2FF0DF2, 0x6BD6BD6B, 0x6FDEB16F, 0xC59154C5,
    0x30605030, 0x01020301, 0x67CEA967, 0x2B567D2B,
    0xFEE719FE, 0xD7B562D7, 0xAB4DE6AB, 0x76EC9A76,
    0xCA8F45CA, 0x821F9D82, 0xC98940C9, 0x7DFA877D,
    0xFAEF15FA, 0x59B2EB59, 0x478EC947, 0xF0FB0BF0,
    0xAD41ECAD, 0xD4B367D4, 0xA25FFDA2, 0xAF45EAAF,
    0x9C23BF9C, 0xA453F7A4, 0x72E49672, 0xC09B5BC0,
    0xB775C2B7, 0xFDE11CFD, 0x933DAE93, 0x264C6A26,
    0x366C5A36, 0x3F7E413F, 0xF7F502F7, 0xCC834FCC,
    0x34685C34, 0xA551F4A5, 0xE5D134E5, 0xF1F908F1,
    0x71E29371, 0xD8AB73D8, 0x31625331, 0x152A3F15,
    0x04080C04, 0xC79552C7, 0x23466523, 0xC39D5EC3,
    0x18302818, 0x9637A196, 0x050A0F05, 0x9A2FB59A,
    0x070E0907, 0x12243612, 0x801B9B80, 0xE2DF3DE2,
    0xEBCD26EB, 0x274E6927, 0xB27FCDB2, 0x75EA9F75,
    0x09121B09, 0x831D9E83, 0x2C58742C, 0x1A342E1A,
    0x1B362D1B, 0x6EDCB26E, 0x5AB4EE5A, 0xA05BFBA0,
    0x52A4F652, 0x3B764D3B, 0xD6B761D6, 0xB37DCEB3,
    0x29527B29, 0xE3DD3EE3, 0x2F5E712F, 0x84139784,
    0x53A6F553, 0xD1B968D1, 0x00000000, 0xEDC12CED,
    0x20406020, 0xFCE31FFC, 0xB179C8B1, 0x5BB6ED5B,
    0x6AD4BE6A, 0xCB8D46CB, 0xBE67D9BE, 0x39724B39,
    0x4A94DE4A, 0x4C98D44C, 0x58B0E858, 0xCF854ACF,
    0xD0BB6BD0, 0xEFC52AEF, 0xAA4FE5AA, 0xFBED16FB,
    0x4386C543, 0x4D9AD74D, 0x33665533, 0x85119485,
    0x458ACF45, 0xF9E910F9, 0x02040602, 0x7FFE817F,
    0x50A0F050, 0x3C78443C, 0x9F25BA9F, 0xA84BE3A8,
    0x51A2F351, 0xA35DFEA3, 0x4080C040, 0x8F058A8F,
    0x923FAD92, 0x9D21BC9D, 0x38704838, 0xF5F104F5,
    0xBC63DFBC, 0xB677C1B6, 0xDAAF75DA, 0x21426321,
    0x10203010, 0xFFE51AFF, 0xF3FD0EF3, 0xD2BF6DD2,
    0xCD814CCD, 0x0C18140C, 0x13263513, 0xECC32FEC,
    0x5FBEE15F, 0x9735A297, 0x4488CC44, 0x172E3917,
    0xC49357C4, 0xA755F2A7, 0x7EFC827E, 0x3D7A473D,
    0x64C8AC64, 0x5DBAE75D, 0x19322B19, 0x73E69573,
    0x60C0A060, 0x81199881, 0x4F9ED14F, 0xDCA37FDC,
    0x22446622, 0x2A547E2A, 0x903BAB90, 0x880B8388,
    0x468CCA46, 0xEEC729EE, 0xB86BD3B8, 0x14283C14,
    0xDEA779DE, 0x5EBCE25E, 0x0B161D0B, 0xDBAD76DB,
    0xE0DB3BE0, 0x32645632, 0x3A744E3A, 0x0A141E0A,
    0x4992DB49, 0x060C0A06, 0x24486C24, 0x5CB8E45C,
    0xC29F5DC2, 0xD3BD6ED3, 0xAC43EFAC, 0x62C4A662,
    0x9139A891, 0x9531A495, 0xE4D337E4, 0x79F28B79,
    0xE7D532E7, 0xC88B43C8, 0x376E5937, 0x6DDAB76D,
    0x8D018C8D, 0xD5B164D5, 0x4E9CD24E, 0xA949E0A9,
    0x6CD8B46C, 0x56ACFA56, 0xF4F307F4, 0xEACF25EA,
    0x65CAAF65, 0x7AF48E7A, 0xAE47E9AE, 0x08101808,
    0xBA6FD5BA, 0x78F08878, 0x254A6F25, 0x2E5C722E,
    0x1C38241C, 0xA657F1A6, 0xB473C7B4, 0xC69751C6,
    0xE8CB23E8, 0xDDA17CDD, 0x74E89C74, 0x1F3E211F,
    0x4B96DD4B, 0xBD61DCBD, 0x8B0D868B, 0x8A0F858A,
    0x70E09070, 0x3E7C423E, 0xB571C4B5, 0x66CCAA66,
    0x4890D848, 0x03060503, 0xF6F701F6, 0x0E1C120E,
    0x61C2A361, 0x356A5F35, 0x57AEF957, 0xB969D0B9,
    0x86179186, 0xC19958C1, 0x1D3A271D, 0x9E27B99E,
    0xE1D938E1, 0xF8EB13F8, 0x982BB398, 0x11223311,
    0x69D2BB69, 0xD9A970D9, 0x8E07898E, 0x9433A794,
    0x9B2DB69B, 0x1E3C221E, 0x87159287, 0xE9C920E9,
    0xCE8749CE, 0x55AAFF55, 0x28507828, 0xDFA57ADF,
    0x8C038F8C, 0xA159F8A1, 0x89098089, 0x0D1A170D,
    0xBF65DABF, 0xE6D731E6, 0x4284C642, 0x68D0B868,
    0x4182C341, 0x9929B099, 0x2D5A772D, 0x0F1E110F,
    0xB07BCBB0, 0x54A8FC54, 0xBB6DD6BB, 0x162C3A16
];

var AES3 = [
    0xC6A56363, 0xF8847C7C, 0xEE997777, 0xF68D7B7B,
    0xFF0DF2F2, 0xD6BD6B6B, 0xDEB16F6F, 0x9154C5C5,
    0x60503030, 0x02030101, 0xCEA96767, 0x567D2B2B,
    0xE719FEFE, 0xB562D7D7, 0x4DE6ABAB, 0xEC9A7676,
    0x8F45CACA, 0x1F9D8282, 0x8940C9C9, 0xFA877D7D,
    0xEF15FAFA, 0xB2EB5959, 0x8EC94747, 0xFB0BF0F0,
    0x41ECADAD, 0xB367D4D4, 0x5FFDA2A2, 0x45EAAFAF,
    0x23BF9C9C, 0x53F7A4A4, 0xE4967272, 0x9B5BC0C0,
    0x75C2B7B7, 0xE11CFDFD, 0x3DAE9393, 0x4C6A2626,
    0x6C5A3636, 0x7E413F3F, 0xF502F7F7, 0x834FCCCC,
    0x685C3434, 0x51F4A5A5, 0xD134E5E5, 0xF908F1F1,
    0xE2937171, 0xAB73D8D8, 0x62533131, 0x2A3F1515,
    0x080C0404, 0x9552C7C7, 0x46652323, 0x9D5EC3C3,
    0x30281818, 0x37A19696, 0x0A0F0505, 0x2FB59A9A,
    0x0E090707, 0x24361212, 0x1B9B8080, 0xDF3DE2E2,
    0xCD26EBEB, 0x4E692727, 0x7FCDB2B2, 0xEA9F7575,
    0x121B0909, 0x1D9E8383, 0x58742C2C, 0x342E1A1A,
    0x362D1B1B, 0xDCB26E6E, 0xB4EE5A5A, 0x5BFBA0A0,
    0xA4F65252, 0x764D3B3B, 0xB761D6D6, 0x7DCEB3B3,
    0x527B2929, 0xDD3EE3E3, 0x5E712F2F, 0x13978484,
    0xA6F55353, 0xB968D1D1, 0x00000000, 0xC12CEDED,
    0x40602020, 0xE31FFCFC, 0x79C8B1B1, 0xB6ED5B5B,
    0xD4BE6A6A, 0x8D46CBCB, 0x67D9BEBE, 0x724B3939,
    0x94DE4A4A, 0x98D44C4C, 0xB0E85858, 0x854ACFCF,
    0xBB6BD0D0, 0xC52AEFEF, 0x4FE5AAAA, 0xED16FBFB,
    0x86C54343, 0x9AD74D4D, 0x66553333, 0x11948585,
    0x8ACF4545, 0xE910F9F9, 0x04060202, 0xFE817F7F,
    0xA0F05050, 0x78443C3C, 0x25BA9F9F, 0x4BE3A8A8,
    0xA2F35151, 0x5DFEA3A3, 0x80C04040, 0x058A8F8F,
    0x3FAD9292, 0x21BC9D9D, 0x70483838, 0xF104F5F5,
    0x63DFBCBC, 0x77C1B6B6, 0xAF75DADA, 0x42632121,
    0x20301010, 0xE51AFFFF, 0xFD0EF3F3, 0xBF6DD2D2,
    0x814CCDCD, 0x18140C0C, 0x26351313, 0xC32FECEC,
    0xBEE15F5F, 0x35A29797, 0x88CC4444, 0x2E391717,
    0x9357C4C4, 0x55F2A7A7, 0xFC827E7E, 0x7A473D3D,
    0xC8AC6464, 0xBAE75D5D, 0x322B1919, 0xE6957373,
    0xC0A06060, 0x19988181, 0x9ED14F4F, 0xA37FDCDC,
    0x44662222, 0x547E2A2A, 0x3BAB9090, 0x0B838888,
    0x8CCA4646, 0xC729EEEE, 0x6BD3B8B8, 0x283C1414,
    0xA779DEDE, 0xBCE25E5E, 0x161D0B0B, 0xAD76DBDB,
    0xDB3BE0E0, 0x64563232, 0x744E3A3A, 0x141E0A0A,
    0x92DB4949, 0x0C0A0606, 0x486C2424, 0xB8E45C5C,
    0x9F5DC2C2, 0xBD6ED3D3, 0x43EFACAC, 0xC4A66262,
    0x39A89191, 0x31A49595, 0xD337E4E4, 0xF28B7979,
    0xD532E7E7, 0x8B43C8C8, 0x6E593737, 0xDAB76D6D,
    0x018C8D8D, 0xB164D5D5, 0x9CD24E4E, 0x49E0A9A9,
    0xD8B46C6C, 0xACFA5656, 0xF307F4F4, 0xCF25EAEA,
    0xCAAF6565, 0xF48E7A7A, 0x47E9AEAE, 0x10180808,
    0x6FD5BABA, 0xF0887878, 0x4A6F2525, 0x5C722E2E,
    0x38241C1C, 0x57F1A6A6, 0x73C7B4B4, 0x9751C6C6,
    0xCB23E8E8, 0xA17CDDDD, 0xE89C7474, 0x3E211F1F,
    0x96DD4B4B, 0x61DCBDBD, 0x0D868B8B, 0x0F858A8A,
    0xE0907070, 0x7C423E3E, 0x71C4B5B5, 0xCCAA6666,
    0x90D84848, 0x06050303, 0xF701F6F6, 0x1C120E0E,
    0xC2A36161, 0x6A5F3535, 0xAEF95757, 0x69D0B9B9,
    0x17918686, 0x9958C1C1, 0x3A271D1D, 0x27B99E9E,
    0xD938E1E1, 0xEB13F8F8, 0x2BB39898, 0x22331111,
    0xD2BB6969, 0xA970D9D9, 0x07898E8E, 0x33A79494,
    0x2DB69B9B, 0x3C221E1E, 0x15928787, 0xC920E9E9,
    0x8749CECE, 0xAAFF5555, 0x50782828, 0xA57ADFDF,
    0x038F8C8C, 0x59F8A1A1, 0x09808989, 0x1A170D0D,
    0x65DABFBF, 0xD731E6E6, 0x84C64242, 0xD0B86868,
    0x82C34141, 0x29B09999, 0x5A772D2D, 0x1E110F0F,
    0x7BCBB0B0, 0xA8FC5454, 0x6DD6BBBB, 0x2C3A1616
];


module.exports.AES_ROUND_LE = function(X, K, Y) {
    (Y[0]) = AES0[(X[0]) & 0xFF] ^
        AES1[((X[1]) >>> 8) & 0xFF] ^
        AES2[((X[2]) >>> 16) & 0xFF] ^
        AES3[((X[3]) >>> 24) & 0xFF] ^ (K[0]);
    (Y[1]) = AES0[(X[1]) & 0xFF] ^
        AES1[((X[2]) >>> 8) & 0xFF] ^
        AES2[((X[3]) >>> 16) & 0xFF] ^
        AES3[((X[0]) >>> 24) & 0xFF] ^ (K[1]);
    (Y[2]) = AES0[(X[2]) & 0xFF] ^
        AES1[((X[3]) >>> 8) & 0xFF] ^
        AES2[((X[0]) >>> 16) & 0xFF] ^
        AES3[((X[1]) >>> 24) & 0xFF] ^ (K[2]);
    (Y[3]) = AES0[(X[3]) & 0xFF] ^
        AES1[((X[0]) >>> 8) & 0xFF] ^
        AES2[((X[1]) >>> 16) & 0xFF] ^
        AES3[((X[2]) >>> 24) & 0xFF] ^ (K[3]);
}

module.exports.AES_ROUND_NOKEY_LE = function(X, Y) {
    var K = new Array(4);
    op.bufferSet(K, 0, 0, 4);
    this.AES_ROUND_LE(X, K, Y);
}
},{"./op":207}],198:[function(require,module,exports){
/////////////////////////////////////
///////////////  Blake //////////////

//// Written by Quantum Explorer ////
////////// Dash Foundation //////////
/// Released under the MIT License //
/////////////////////////////////////

var op = require('./op');
var h = require('./helper');

var CB = [
  new op.u64(0x243f6a88, 0x85a308d3),
  new op.u64(0x13198a2e, 0x03707344),
  new op.u64(0xa4093822, 0x299f31d0),
  new op.u64(0x082efa98, 0xec4e6c89),
  new op.u64(0x452821e6, 0x38d01377),
  new op.u64(0xbe5466cf, 0x34e90c6c),
  new op.u64(0xc0ac29b7, 0xc97c50dd),
  new op.u64(0x3f84d5b5, 0xb5470917),
  new op.u64(0x9216d5d9, 0x8979fb1b),
  new op.u64(0xd1310ba6, 0x98dfb5ac),
  new op.u64(0x2ffd72db, 0xd01adfb7),
  new op.u64(0xb8e1afed, 0x6a267e96),
  new op.u64(0xba7c9045, 0xf12c7f99),
  new op.u64(0x24a19947, 0xb3916cf7),
  new op.u64(0x0801f2e2, 0x858efc16),
  new op.u64(0x636920d8, 0x71574e69)
];

var Z = [
  [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15],
  [14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3],
  [11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4],
  [7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8],
  [9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13],
  [2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9],
  [12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11],
  [13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10],
  [6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5],
  [10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0]
];

var Mx = function(M, r, i) {
  return M[Z[r][i]];
}

var CBx = function(r, i) {
  return CB[Z[r][i]];
}

var initialValues = [
  new op.u64(0x6a09e667, 0xf3bcc908),
  new op.u64(0xbb67ae85, 0x84caa73b),
  new op.u64(0x3c6ef372, 0xfe94f82b),
  new op.u64(0xa54ff53a, 0x5f1d36f1),
  new op.u64(0x510e527f, 0xade682d1),
  new op.u64(0x9b05688c, 0x2b3e6c1f),
  new op.u64(0x1f83d9ab, 0xfb41bd6b),
  new op.u64(0x5be0cd19, 0x137e2179)
];

var GB = function(m0, m1, c0, c1, a, b, c, d) {
  a.add(b.plus(m0.xor(c1)));
  var l = d.xor(a);
  d.set(d.xor(a).rotateRight(32));
  c.add(d);
  b.set(b.xor(c).rotateRight(25));
  a.add(b.plus(m1.xor(c0)));
  d.set(d.xor(a).rotateRight(16));
  c.add(d);
  b.set(b.xor(c).rotateRight(11));
}

var round = function(r, V, M) {
  GB(Mx(M, r, 0), Mx(M, r, 1), CBx(r, 0), CBx(r, 1), V[0], V[4], V[8], V[0xC]);
  GB(Mx(M, r, 2), Mx(M, r, 3), CBx(r, 2), CBx(r, 3), V[1], V[5], V[9], V[0xD]);
  GB(Mx(M, r, 4), Mx(M, r, 5), CBx(r, 4), CBx(r, 5), V[2], V[6], V[0xA], V[0xE]);
  GB(Mx(M, r, 6), Mx(M, r, 7), CBx(r, 6), CBx(r, 7), V[3], V[7], V[0xB], V[0xF]);
  GB(Mx(M, r, 8), Mx(M, r, 9), CBx(r, 8), CBx(r, 9), V[0], V[5], V[0xA], V[0xF]);
  GB(Mx(M, r, 0xA), Mx(M, r, 0xB), CBx(r, 0xA), CBx(r, 0xB), V[1], V[6], V[0xB], V[0xC]);
  GB(Mx(M, r, 0xC), Mx(M, r, 0xD), CBx(r, 0xC), CBx(r, 0xD), V[2], V[7], V[8], V[0xD]);
  GB(Mx(M, r, 0xE), Mx(M, r, 0xF), CBx(r, 0xE), CBx(r, 0xF), V[3], V[4], V[9], V[0xE]);
}

var compress = function(M, H, S, T0, T1) {
  var V = new Array(16);
  op.bufferInsert64(V, 0, H, 8);
  V[8] = S[0].xor(CB[0]);
  V[9] = S[1].xor(CB[1]);
  V[10] = S[2].xor(CB[2]);
  V[11] = S[3].xor(CB[3]);
  V[12] = T0.xor(CB[4]);
  V[13] = T0.xor(CB[5]);
  V[14] = T1.xor(CB[6]);
  V[15] = T1.xor(CB[7]);
  for (var i = 0; i < 16; i++) {
    round(i % 10, V, M);
  }
  for (var i = 0; i < 8; i++) {
    H[i] = op.xor64(H[i], S[i % 4], V[i], V[8 + i]);
  }
}

var blake = function(ctx, data, len) {
  var buf, ptr;
  //create a local copy of states
  var H = new Array(8);
  var S = new Array(4);
  var T0 = ctx.T0.clone();
  var T1 = ctx.T1.clone();
  buf = ctx.buffer;
  ptr = ctx.ptr;
  if (len < ctx.buffer.length - ptr) {
    op.bufferInsert(buf, ptr, data, data.length);
    ptr += data.length;
    ctx.ptr = ptr;
    return;
  }
  //perform a deep copy of current state
  op.bufferInsert(H, 0, ctx.state, 8);
  op.bufferInsert(S, 0, ctx.salt, 4);
  while (len > 0) {
    var clen = ctx.buffer.length - ptr;
    if (clen > len) clen = len;
    op.bufferInsert(buf, ptr, data, clen);
    ptr += clen;
    data = data.slice(clen);
    len -= clen;
    if (ptr === ctx.buffer.length) {
      T0.add(new op.u64(0, 1024));
      if (T0.hi < 0 || T0.lo < 1024)
        T1.addOne();
      var int64Buf = h.bytes2Int64Buffer(buf);
      compress(int64Buf, H, S, T0, T1);
      ptr = 0;
    }
  }
  ctx.state = H;
  ctx.salt = S;
  ctx.T0 = T0;
  ctx.T1 = T1;
  ctx.ptr = ptr;
}

var blakeClose = function(ctx) {
  var buf = new Array(128);
  var ptr = ctx.ptr;
  var bitLen = (new op.u64(0, ptr)).shiftLeft(3);
  var len = buf.length;
  var padLen;
  var count;
  var tl = ctx.T0.plus(bitLen);
  var th = ctx.T1.clone();
  buf[ptr] = 0x80;
  if (ptr === 0) {
    ctx.T0 = new op.u64(0xFFFFFFFF, 0xFFFFFC00);
    ctx.T1 = new op.u64(0xFFFFFFFF, 0xFFFFFFFF);
  }
  else if (ctx.T0.isZero()) {
    ctx.T0 = new op.u64(0xFFFFFFFF, 0xFFFFFC00).plus(bitLen);
    ctx.T1 = ctx.T1.minus(new op.u64(0, 1));
  }
  else {
    ctx.T0 = ctx.T0.minus(new op.u64(0, 1024).minus(bitLen));
  }
  if (bitLen.lo <= 894) {
    op.bufferSet(buf, ptr + 1, 0, 111 - ptr);
    buf[111] |= 1;
    h.bufferEncode64(buf, 112, th);
    h.bufferEncode64(buf, 120, tl);
    blake(ctx, buf.slice(ptr), 128 - ptr);
  }
  else {
    op.bufferSet(u.buf, ptr + 1, 0, 127 - ptr);
    blake(ctx, buf.slice(ptr), 128 - ptr);
    ctx.T0 = new op.u64(0xFFFFFFFFFFFFFC00);
    ctx.T1 = new op.u64(0xFFFFFFFFFFFFFFFF);
    op.bufferSet(buf, 0, 0, 112);
    buf[111] = 1;
    h.bufferEncode64(buf, 112, th);
    h.bufferEncode64(buf, 120, tl);
    blake(ctx, buf, 128);
  }
  var out = new Array(16);
  for (var u = 0; u < 8; u++) {
    out[2 * u] = ctx.state[u].hi;
    out[2 * u + 1] = ctx.state[u].lo;
  }
  return out;
}


module.exports = function(input, format, output) {
  var msg;
  if (format === 1) {
    msg = input;
  }
  else if (format === 2) {
    msg = h.int32Buffer2Bytes(input);
  }
  else {
    msg = h.string2bytes(input);
  }
  var ctx = {};
  ctx.state = op.clone64Array(initialValues);
  ctx.salt = [op.u64.prototype.zero(), op.u64.prototype.zero(), op.u64.prototype.zero(), op.u64.prototype.zero()];
  ctx.T0 = op.u64.prototype.zero();
  ctx.T1 = op.u64.prototype.zero();
  ctx.ptr = 0;
  ctx.buffer = new Array(128);
  blake(ctx, msg, msg.length);
  var r = blakeClose(ctx, 0, 0);
  var out;
  if (output === 2) {
    out = r;
  }
  else if (output === 1) {
    out = h.int32Buffer2Bytes(r)
  }
  else {
    out = h.int32ArrayToHexString(r)
  }
  return out;
}
},{"./helper":203,"./op":207}],199:[function(require,module,exports){
/////////////////////////////////////
//////////////  BMW /////////////////

//// Written by Quantum Explorer ////
////////// Dash Foundation //////////
/// Released under the MIT License //
/////////////////////////////////////

var op = require('./op');
var h = require('./helper');

var V_INIT = [
  new op.u64(0x80818283, 0x84858687), new op.u64(0x88898A8B, 0x8C8D8E8F),
  new op.u64(0x90919293, 0x94959697), new op.u64(0x98999A9B, 0x9C9D9E9F),
  new op.u64(0xA0A1A2A3, 0xA4A5A6A7), new op.u64(0xA8A9AAAB, 0xACADAEAF),
  new op.u64(0xB0B1B2B3, 0xB4B5B6B7), new op.u64(0xB8B9BABB, 0xBCBDBEBF),
  new op.u64(0xC0C1C2C3, 0xC4C5C6C7), new op.u64(0xC8C9CACB, 0xCCCDCECF),
  new op.u64(0xD0D1D2D3, 0xD4D5D6D7), new op.u64(0xD8D9DADB, 0xDCDDDEDF),
  new op.u64(0xE0E1E2E3, 0xE4E5E6E7), new op.u64(0xE8E9EAEB, 0xECEDEEEF),
  new op.u64(0xF0F1F2F3, 0xF4F5F6F7), new op.u64(0xF8F9FAFB, 0xFCFDFEFF)
];

var final = [
  new op.u64(0xaaaaaaaa, 0xaaaaaaa0), new op.u64(0xaaaaaaaa, 0xaaaaaaa1),
  new op.u64(0xaaaaaaaa, 0xaaaaaaa2), new op.u64(0xaaaaaaaa, 0xaaaaaaa3),
  new op.u64(0xaaaaaaaa, 0xaaaaaaa4), new op.u64(0xaaaaaaaa, 0xaaaaaaa5),
  new op.u64(0xaaaaaaaa, 0xaaaaaaa6), new op.u64(0xaaaaaaaa, 0xaaaaaaa7),
  new op.u64(0xaaaaaaaa, 0xaaaaaaa8), new op.u64(0xaaaaaaaa, 0xaaaaaaa9),
  new op.u64(0xaaaaaaaa, 0xaaaaaaaa), new op.u64(0xaaaaaaaa, 0xaaaaaaab),
  new op.u64(0xaaaaaaaa, 0xaaaaaaac), new op.u64(0xaaaaaaaa, 0xaaaaaaad),
  new op.u64(0xaaaaaaaa, 0xaaaaaaae), new op.u64(0xaaaaaaaa, 0xaaaaaaaf)
];

var sb_a = [1, 1, 2, 2, 1, 2];
var sb_b = [3, 2, 1, 2];
var sb_c = [4, 13, 19, 28];
var sb_d = [37, 43, 53, 59];

var I16 = new Array(16); //we are trying to start at 16;

I16.push([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]);
I16.push([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]);
I16.push([2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17]);
I16.push([3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18]);
I16.push([4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19]);
I16.push([5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]);
I16.push([6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21]);
I16.push([7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22]);
I16.push([8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23]);
I16.push([9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]);
I16.push([10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25]);
I16.push([11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26]);
I16.push([12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27]);
I16.push([13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28]);
I16.push([14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29]);
I16.push([15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30]);

var M16 = new Array(16);

M16.push([0, 1, 3, 4, 7, 10, 11]);
M16.push([1, 2, 4, 5, 8, 11, 12]);
M16.push([2, 3, 5, 6, 9, 12, 13]);
M16.push([3, 4, 6, 7, 10, 13, 14]);
M16.push([4, 5, 7, 8, 11, 14, 15]);
M16.push([5, 6, 8, 9, 12, 15, 16]);
M16.push([6, 7, 9, 10, 13, 0, 1]);
M16.push([7, 8, 10, 11, 14, 1, 2]);
M16.push([8, 9, 11, 12, 15, 2, 3]);
M16.push([9, 10, 12, 13, 0, 3, 4]);
M16.push([10, 11, 13, 14, 1, 4, 5]);
M16.push([11, 12, 14, 15, 2, 5, 6]);
M16.push([12, 13, 15, 16, 3, 6, 7]);
M16.push([13, 14, 0, 1, 4, 7, 8]);
M16.push([14, 15, 1, 2, 5, 8, 9]);
M16.push([15, 16, 2, 3, 6, 9, 10]);

var sb = function(n, x) {
  //xOriginal must be of type u64
  if (n < 4) {
    return op.xor64(x.shiftRight(sb_a[n]), x.shiftLeft(sb_b[n]), x.rotateLeft(sb_c[n]), x.rotateLeft(sb_d[n]));
  }
  else {
    return x.shiftRight(sb_a[n]).xor(x);
  }
}


var rbn = [0, 5, 11, 27, 32, 37, 43, 53];

var rb = function(n, x) {
  //x must be of type u64
  return x.rotateLeft(rbn[n]);
}

var makeW = function(M,H,i, op) {
  var a = M[i[0]].xor(H[i[0]]);
  var b = M[i[1]].xor(H[i[1]]);
  var c = M[i[2]].xor(H[i[2]]);
  var d = M[i[3]].xor(H[i[3]]);
  var e = M[i[4]].xor(H[i[4]]);
  var w = op[3](op[2](op[1](op[0](a,b),c),d),e);

  return w;
}

var wbn = [
  [5, 7, 10, 13, 14],
  [6, 8, 11, 14, 15],
  [0, 7, 9, 12, 15],
  [0, 1, 8, 10, 13],
  [1, 2, 9, 11, 14],
  [3, 2, 10, 12, 15],
  [4, 0, 3, 11, 13],
  [1, 4, 5, 12, 14],
  [2, 5, 6, 13, 15],
  [0, 3, 6, 7, 14],
  [8, 1, 4, 7, 15],
  [8, 0, 2, 5, 9],
  [1, 3, 6, 9, 10],
  [2, 4, 7, 10, 11],
  [3, 5, 8, 11, 12],
  [12, 4, 6, 9, 13],
];

var plus = function(a,b) {
  return a.plus(b);
}

var minus = function(a,b) {
  return a.minus(b);
}

var wboperators = [
  [minus, plus, plus, plus],
  [minus, plus, plus, minus],
  [plus, plus, minus, plus],
  [minus, plus, minus, plus],
  [plus, plus, minus, minus],
  [minus, plus, minus, plus],
  [minus, minus, minus, plus],
  [minus, minus, minus, minus],
  [minus, minus, plus, minus],
  [minus, plus, minus, plus],
  [minus, minus, minus, plus],
  [minus, minus, minus, plus],
  [plus, minus, minus, plus],
  [plus, plus, plus, plus],
  [minus, plus, minus, minus],
  [minus, minus, minus, plus],
]

var wb = function(M,H,i) {
  return makeW(M,H,wbn[i],wboperators[i]);
}

var kb = function(j) {
  var fives = new op.u64(0x05555555, 0x55555555);
  return fives.multiply(j);
}


var addElt = function(buffer64, state, mVars, i) {
  var k = kb(i);
  var elt =  buffer64[mVars[0]].rotateLeft(mVars[1])
     .add(buffer64[mVars[2]].rotateLeft(mVars[3]))
     .minus(buffer64[mVars[5]].rotateLeft(mVars[6]))
     .add(k)
     .xor(state[mVars[4]]);
    return elt;
}

var expand2Inner = function(qt, mf, state, i, iVars, mVars) {
  return qt[iVars[0]]
    .plus(rb(1, qt[iVars[1]]))
    .add(qt[iVars[2]])
    .add(rb(2, qt[iVars[3]]))
    .add(qt[iVars[4]])
    .add(rb(3, qt[iVars[5]]))
    .add(qt[iVars[6]])
    .add(rb(4, qt[iVars[7]]))
    .add(qt[iVars[8]])
    .add(rb(5, qt[iVars[9]]))
    .add(qt[iVars[10]])
    .add(rb(6, qt[iVars[11]]))
    .add(qt[iVars[12]])
    .add(rb(7, qt[iVars[13]]))
    .add(sb(4, qt[iVars[14]]))
    .add(sb(5, qt[iVars[15]]))
    .add(addElt(mf, state, mVars, i));
}

var expand1Inner = function(qt, mf, state, i, iVars, mVars) {
  return sb(1, qt[iVars[0]])
    .add(sb(2, qt[iVars[1]]))
    .add(sb(3, qt[iVars[2]]))
    .add(sb(0, qt[iVars[3]]))
    .add(sb(1, qt[iVars[4]]))
    .add(sb(2, qt[iVars[5]]))
    .add(sb(3, qt[iVars[6]]))
    .add(sb(0, qt[iVars[7]]))
    .add(sb(1, qt[iVars[8]]))
    .add(sb(2, qt[iVars[9]]))
    .add(sb(3, qt[iVars[10]]))
    .add(sb(0, qt[iVars[11]]))
    .add(sb(1, qt[iVars[12]]))
    .add(sb(2, qt[iVars[13]]))
    .add(sb(3, qt[iVars[14]]))
    .add(sb(0, qt[iVars[15]]))
    .add(addElt(mf, state, mVars, i));
}

var expand1b = function(qt, mf, state, i) {
  var iVars = I16[i];
  var mVars = M16[i];
  return expand1Inner(qt, mf, state, i, iVars, mVars);
}

var expand2b = function(qt, mf, state, i) {
  var iVars = I16[i];
  var mVars = M16[i];
  return expand2Inner(qt, mf, state, i, iVars, mVars);
}

var makeQ = function(mf, state) {
  var qt = new Array(32);
  for (var i = 0; i < 16; i++) {
    var w = wb(mf,state,i);
    var s = sb(i % 5, w);
    qt[i] = s.plus(state[(i + 1) % 16]);
  }
  qt[16] = expand1b(qt, mf, state, 16);
  qt[17] = expand1b(qt, mf, state, 17);
  for (var i = 18; i < 32; i++) {
    qt[i] = expand2b(qt, mf, state, i);
  }
  return qt;
}

var fold = function(int64Buffer, state) {
  var out = new Array(16);
  var qt = makeQ(int64Buffer, state);
  var xl = op.xor64(qt[16], qt[17], qt[18], qt[19], qt[20], qt[21], qt[22], qt[23]);
  var xh = op.xor64(xl, qt[24], qt[25], qt[26], qt[27], qt[28], qt[29], qt[30], qt[31]);
  out[0] = op.xor64(xh.shiftLeft(5), qt[16].shiftRight(5), int64Buffer[0]).add(op.xor64(xl, qt[24], qt[0]));
  out[1] = op.xor64(xh.shiftRight(7), qt[17].shiftLeft(8), int64Buffer[1]).add(op.xor64(xl, qt[25], qt[1]));
  out[2] = op.xor64(xh.shiftRight(5), qt[18].shiftLeft(5), int64Buffer[2]).add(op.xor64(xl, qt[26], qt[2]));
  out[3] = op.xor64(xh.shiftRight(1), qt[19].shiftLeft(5), int64Buffer[3]).add(op.xor64(xl, qt[27], qt[3]));
  out[4] = op.xor64(xh.shiftRight(3), qt[20], int64Buffer[4]).add(op.xor64(xl, qt[28], qt[4]));
  out[5] = op.xor64(xh.shiftLeft(6), qt[21].shiftRight(6), int64Buffer[5]).add(op.xor64(xl, qt[29], qt[5]));
  out[6] = op.xor64(xh.shiftRight(4), qt[22].shiftLeft(6), int64Buffer[6]).add(op.xor64(xl, qt[30], qt[6]));
  out[7] = op.xor64(xh.shiftRight(11), qt[23].shiftLeft(2), int64Buffer[7]).add(op.xor64(xl, qt[31], qt[7]));
  out[8] = out[4].rotateLeft(9).add(op.xor64(xh, qt[24], int64Buffer[8])).add(op.xor64(xl.shiftLeft(8), qt[23], qt[8]));
  out[9] = out[5].rotateLeft(10).add(op.xor64(xh, qt[25], int64Buffer[9])).add(op.xor64(xl.shiftRight(6), qt[16], qt[9]));
  out[10] = out[6].rotateLeft(11).add(op.xor64(xh, qt[26], int64Buffer[10])).add(op.xor64(xl.shiftLeft(6), qt[17], qt[10]));
  out[11] = out[7].rotateLeft(12).add(op.xor64(xh, qt[27], int64Buffer[11])).add(op.xor64(xl.shiftLeft(4), qt[18], qt[11]));
  out[12] = out[0].rotateLeft(13).add(op.xor64(xh, qt[28], int64Buffer[12])).add(op.xor64(xl.shiftRight(3), qt[19], qt[12]));
  out[13] = out[1].rotateLeft(14).add(op.xor64(xh, qt[29], int64Buffer[13])).add(op.xor64(xl.shiftRight(4), qt[20], qt[13]));
  out[14] = out[2].rotateLeft(15).add(op.xor64(xh, qt[30], int64Buffer[14])).add(op.xor64(xl.shiftRight(7), qt[21], qt[14]));
  out[15] = out[3].rotateLeft(16).add(op.xor64(xh, qt[31], int64Buffer[15])).add(op.xor64(xl.shiftRight(2), qt[22], qt[15]));
  return out;
}

var compress = function(buf, state) {
  var int64Buf = h.bytes2Int64BufferLeAligned(buf);
  return fold(int64Buf, state);
}

var bmw = function(ctx, data) {
  var htmp = new Array(16);
  var len = data.length;
  var lenL3 = new op.u64(0, len);
  lenL3 = lenL3.shiftLeft(3);
  ctx.bitCount.add(lenL3);
  var buf = ctx.buffer;
  var ptr = ctx.ptr;
  var h1 = ctx.state;
  var h2 = htmp;
  while (len > 0) {
    var clen = ctx.buffer.length - ptr;
    if (clen > len)
      clen = len;
    op.bufferInsert(buf, ptr, data, clen);
    data = data.slice(clen);
    len -= clen;
    ptr += clen;
    if (ptr === ctx.buffer.length) {
      var ht;
      h2 = compress(buf, h1);
      ht = h1;
      h1 = h2;
      h2 = ht;
      ptr = 0;
    }
  }
  ctx.ptr = ptr;
  if (h1 !== ctx.state)
    op.bufferInsert(ctx.state, 0, h1, ctx.state.length);
}

var bmwClose = function(ctx) {
  var h1;
  var h2 = new Array(16);

  var buf = ctx.buffer;
  var ptr = ctx.ptr;
  var len = buf.length;
  buf[ptr++] = 0x80;
  var hState = ctx.state;
  if (ptr > len - 8) {
    op.bufferSet(buf, ptr, 0, len - ptr);
    hState = compress(buf, hState);
    ptr = 0;
  }
  op.bufferSet(buf, ptr, 0, len - 8 - ptr);
  h.bufferEncode64leAligned(buf, len - 8, ctx.bitCount);
  h2 = compress(buf, hState);
  for (u = 0; u < 16; u++)
    h.bufferEncode64leAligned(buf, 8 * u, h2[u]);
  h1 = compress(buf, final);
  var out = new Array(16);
  for (var u = 0, v = 8; u < 8; u++, v++) {
    out[2 * u] = op.swap32(h1[v].lo);
    out[2 * u + 1] = op.swap32(h1[v].hi);
  }
  return out;
}

module.exports = function(input, format, output) {
  var msg;
  if (format === 1) {
    msg = input;
  }
  else if (format === 2) {
    msg = h.int32Buffer2Bytes(input);
  }
  else {
    msg = h.string2bytes(input);
  }
  var ctx = {};
  ctx.state = op.clone64Array(V_INIT);
  ctx.ptr = 0;
  ctx.bitCount = op.u64.prototype.zero();
  ctx.buffer = new Array(128);
  bmw(ctx, msg);
  var r = bmwClose(ctx, 0, 0);
  var out;
  if (output === 2) {
    out = r;
  }
  else if (output === 1) {
    out = h.int32Buffer2Bytes(r)
  }
  else {
    out = h.int32ArrayToHexString(r)
  }
  return out;
}
},{"./helper":203,"./op":207}],200:[function(require,module,exports){
/////////////////////////////////////
////////////  Cubehash //////////////

//// Written by Quantum Explorer ////
////////// Dash Foundation //////////
/// Released under the MIT License //
/////////////////////////////////////

var op = require('./op');
var h = require('./helper');

var Cubehash_BlockSize = 32;
var Cubehash_StateSize = 32;

var IV512 = [
	0x2AEA2A61, 0x50F494D4, 0x2D538B8B,
	0x4167D83E, 0x3FEE2313, 0xC701CF8C,
	0xCC39968E, 0x50AC5695, 0x4D42C787,
	0xA647A8B3, 0x97CF0BEF, 0x825B4537,
	0xEEF864D2, 0xF22090C4, 0xD0E5CD33,
	0xA23911AE, 0xFCD398D9, 0x148FE485,
	0x1B017BEF, 0xB6444532, 0x6A536159,
	0x2FF5781C, 0x91FA7934, 0x0DBADEA9,
	0xD65C8A2B, 0xA5A70E75, 0xB1C62456,
	0xBC796576, 0x1921C8F7, 0xE7989AF1,
	0x7795D246, 0xD43E3B44,
];

var ROUND_EVEN = function(x) {
	x[16] = 0xFFFFFFFF & (x[0] + x[16]);
	x[0] = op.rotl32(x[0], 7);
	x[17] = 0xFFFFFFFF & (x[1] + x[17]);
	x[1] = op.rotl32(x[1], 7);
	x[18] = 0xFFFFFFFF & (x[2] + x[18]);
	x[2] = op.rotl32(x[2], 7);
	x[19] = 0xFFFFFFFF & (x[3] + x[19]);
	x[3] = op.rotl32(x[3], 7);
	x[20] = 0xFFFFFFFF & (x[4] + x[20]);
	x[4] = op.rotl32(x[4], 7);
	x[21] = 0xFFFFFFFF & (x[5] + x[21]);
	x[5] = op.rotl32(x[5], 7);
	x[22] = 0xFFFFFFFF & (x[6] + x[22]);
	x[6] = op.rotl32(x[6], 7);
	x[23] = 0xFFFFFFFF & (x[7] + x[23]);
	x[7] = op.rotl32(x[7], 7);
	x[24] = 0xFFFFFFFF & (x[8] + x[24]);
	x[8] = op.rotl32(x[8], 7);
	x[25] = 0xFFFFFFFF & (x[9] + x[25]);
	x[9] = op.rotl32(x[9], 7);
	x[26] = 0xFFFFFFFF & (x[10] + x[26]);
	x[10] = op.rotl32(x[10], 7);
	x[27] = 0xFFFFFFFF & (x[11] + x[27]);
	x[11] = op.rotl32(x[11], 7);
	x[28] = 0xFFFFFFFF & (x[12] + x[28]);
	x[12] = op.rotl32(x[12], 7);
	x[29] = 0xFFFFFFFF & (x[13] + x[29]);
	x[13] = op.rotl32(x[13], 7);
	x[30] = 0xFFFFFFFF & (x[14] + x[30]);
	x[14] = op.rotl32(x[14], 7);
	x[31] = 0xFFFFFFFF & (x[15] + x[31]);
	x[15] = op.rotl32(x[15], 7);
	x[8] ^= x[16];
	x[9] ^= x[17];
	x[10] ^= x[18];
	x[11] ^= x[19];
	x[12] ^= x[20];
	x[13] ^= x[21];
	x[14] ^= x[22];
	x[15] ^= x[23];
	x[0] ^= x[24];
	x[1] ^= x[25];
	x[2] ^= x[26];
	x[3] ^= x[27];
	x[4] ^= x[28];
	x[5] ^= x[29];
	x[6] ^= x[30];
	x[7] ^= x[31];
	x[18] = 0xFFFFFFFF & (x[8] + x[18]);
	x[8] = op.rotl32(x[8], 11);
	x[19] = 0xFFFFFFFF & (x[9] + x[19]);
	x[9] = op.rotl32(x[9], 11);
	x[16] = 0xFFFFFFFF & (x[10] + x[16]);
	x[10] = op.rotl32(x[10], 11);
	x[17] = 0xFFFFFFFF & (x[11] + x[17]);
	x[11] = op.rotl32(x[11], 11);
	x[22] = 0xFFFFFFFF & (x[12] + x[22]);
	x[12] = op.rotl32(x[12], 11);
	x[23] = 0xFFFFFFFF & (x[13] + x[23]);
	x[13] = op.rotl32(x[13], 11);
	x[20] = 0xFFFFFFFF & (x[14] + x[20]);
	x[14] = op.rotl32(x[14], 11);
	x[21] = 0xFFFFFFFF & (x[15] + x[21]);
	x[15] = op.rotl32(x[15], 11);
	x[26] = 0xFFFFFFFF & (x[0] + x[26]);
	x[0] = op.rotl32(x[0], 11);
	x[27] = 0xFFFFFFFF & (x[1] + x[27]);
	x[1] = op.rotl32(x[1], 11);
	x[24] = 0xFFFFFFFF & (x[2] + x[24]);
	x[2] = op.rotl32(x[2], 11);
	x[25] = 0xFFFFFFFF & (x[3] + x[25]);
	x[3] = op.rotl32(x[3], 11);
	x[30] = 0xFFFFFFFF & (x[4] + x[30]);
	x[4] = op.rotl32(x[4], 11);
	x[31] = 0xFFFFFFFF & (x[5] + x[31]);
	x[5] = op.rotl32(x[5], 11);
	x[28] = 0xFFFFFFFF & (x[6] + x[28]);
	x[6] = op.rotl32(x[6], 11);
	x[29] = 0xFFFFFFFF & (x[7] + x[29]);
	x[7] = op.rotl32(x[7], 11);
	x[12] ^= x[18];
	x[13] ^= x[19];
	x[14] ^= x[16];
	x[15] ^= x[17];
	x[8] ^= x[22];
	x[9] ^= x[23];
	x[10] ^= x[20];
	x[11] ^= x[21];
	x[4] ^= x[26];
	x[5] ^= x[27];
	x[6] ^= x[24];
	x[7] ^= x[25];
	x[0] ^= x[30];
	x[1] ^= x[31];
	x[2] ^= x[28];
	x[3] ^= x[29];
}

var ROUND_ODD = function(x) {
	x[19] = 0xFFFFFFFF & (x[12] + x[19]);
	x[12] = op.rotl32(x[12], 7);
	x[18] = 0xFFFFFFFF & (x[13] + x[18]);
	x[13] = op.rotl32(x[13], 7);
	x[17] = 0xFFFFFFFF & (x[14] + x[17]);
	x[14] = op.rotl32(x[14], 7);
	x[16] = 0xFFFFFFFF & (x[15] + x[16]);
	x[15] = op.rotl32(x[15], 7);
	x[23] = 0xFFFFFFFF & (x[8] + x[23]);
	x[8] = op.rotl32(x[8], 7);
	x[22] = 0xFFFFFFFF & (x[9] + x[22]);
	x[9] = op.rotl32(x[9], 7);
	x[21] = 0xFFFFFFFF & (x[10] + x[21]);
	x[10] = op.rotl32(x[10], 7);
	x[20] = 0xFFFFFFFF & (x[11] + x[20]);
	x[11] = op.rotl32(x[11], 7);
	x[27] = 0xFFFFFFFF & (x[4] + x[27]);
	x[4] = op.rotl32(x[4], 7);
	x[26] = 0xFFFFFFFF & (x[5] + x[26]);
	x[5] = op.rotl32(x[5], 7);
	x[25] = 0xFFFFFFFF & (x[6] + x[25]);
	x[6] = op.rotl32(x[6], 7);
	x[24] = 0xFFFFFFFF & (x[7] + x[24]);
	x[7] = op.rotl32(x[7], 7);
	x[31] = 0xFFFFFFFF & (x[0] + x[31]);
	x[0] = op.rotl32(x[0], 7);
	x[30] = 0xFFFFFFFF & (x[1] + x[30]);
	x[1] = op.rotl32(x[1], 7);
	x[29] = 0xFFFFFFFF & (x[2] + x[29]);
	x[2] = op.rotl32(x[2], 7);
	x[28] = 0xFFFFFFFF & (x[3] + x[28]);
	x[3] = op.rotl32(x[3], 7);
	x[4] ^= x[19];
	x[5] ^= x[18];
	x[6] ^= x[17];
	x[7] ^= x[16];
	x[0] ^= x[23];
	x[1] ^= x[22];
	x[2] ^= x[21];
	x[3] ^= x[20];
	x[12] ^= x[27];
	x[13] ^= x[26];
	x[14] ^= x[25];
	x[15] ^= x[24];
	x[8] ^= x[31];
	x[9] ^= x[30];
	x[10] ^= x[29];
	x[11] ^= x[28];
	x[17] = 0xFFFFFFFF & (x[4] + x[17]);
	x[4] = op.rotl32(x[4], 11);
	x[16] = 0xFFFFFFFF & (x[5] + x[16]);
	x[5] = op.rotl32(x[5], 11);
	x[19] = 0xFFFFFFFF & (x[6] + x[19]);
	x[6] = op.rotl32(x[6], 11);
	x[18] = 0xFFFFFFFF & (x[7] + x[18]);
	x[7] = op.rotl32(x[7], 11);
	x[21] = 0xFFFFFFFF & (x[0] + x[21]);
	x[0] = op.rotl32(x[0], 11);
	x[20] = 0xFFFFFFFF & (x[1] + x[20]);
	x[1] = op.rotl32(x[1], 11);
	x[23] = 0xFFFFFFFF & (x[2] + x[23]);
	x[2] = op.rotl32(x[2], 11);
	x[22] = 0xFFFFFFFF & (x[3] + x[22]);
	x[3] = op.rotl32(x[3], 11);
	x[25] = 0xFFFFFFFF & (x[12] + x[25]);
	x[12] = op.rotl32(x[12], 11);
	x[24] = 0xFFFFFFFF & (x[13] + x[24]);
	x[13] = op.rotl32(x[13], 11);
	x[27] = 0xFFFFFFFF & (x[14] + x[27]);
	x[14] = op.rotl32(x[14], 11);
	x[26] = 0xFFFFFFFF & (x[15] + x[26]);
	x[15] = op.rotl32(x[15], 11);
	x[29] = 0xFFFFFFFF & (x[8] + x[29]);
	x[8] = op.rotl32(x[8], 11);
	x[28] = 0xFFFFFFFF & (x[9] + x[28]);
	x[9] = op.rotl32(x[9], 11);
	x[31] = 0xFFFFFFFF & (x[10] + x[31]);
	x[10] = op.rotl32(x[10], 11);
	x[30] = 0xFFFFFFFF & (x[11] + x[30]);
	x[11] = op.rotl32(x[11], 11);
	x[0] ^= x[17];
	x[1] ^= x[16];
	x[2] ^= x[19];
	x[3] ^= x[18];
	x[4] ^= x[21];
	x[5] ^= x[20];
	x[6] ^= x[23];
	x[7] ^= x[22];
	x[8] ^= x[25];
	x[9] ^= x[24];
	x[10] ^= x[27];
	x[11] ^= x[26];
	x[12] ^= x[29];
	x[13] ^= x[28];
	x[14] ^= x[31];
	x[15] ^= x[30];
}

var SIXTEEN_ROUNDS = function(x) {
	ROUND_EVEN(x);
	ROUND_ODD(x);
	ROUND_EVEN(x);
	ROUND_ODD(x);
	ROUND_EVEN(x);
	ROUND_ODD(x);
	ROUND_EVEN(x);
	ROUND_ODD(x);
	ROUND_EVEN(x);
	ROUND_ODD(x);
	ROUND_EVEN(x);
	ROUND_ODD(x);
	ROUND_EVEN(x);
	ROUND_ODD(x);
	ROUND_EVEN(x);
	ROUND_ODD(x);
}

var cubehash = function(ctx, data) {
	var buf, ptr;
	//create a local copy of states
	var x = new Array(Cubehash_StateSize);
	buf = ctx.buffer;
	ptr = ctx.ptr;
	var len = data.length;
	if (len < ctx.buffer.length - ptr) {
		op.bufferInsert(buf, ptr, data, data.length);
		ptr += data.length;
		ctx.ptr = ptr;
		return;
	}
	//perform a deep copy of current state
	for (var i = 0; i < Cubehash_StateSize; i++) {
		x[i] = ctx.state[i];
	}
	while (len > 0) {
		var clen = ctx.buffer.length - ptr;
		if (clen > len) clen = len;
		op.bufferInsert(buf, ptr, data, clen);
		ptr += clen;
		data = data.slice(clen);
		len -= clen;
		if (ptr === ctx.buffer.length) {
			var int32Buf = op.swap32Array(h.bytes2Int32Buffer(buf));
			op.bufferXORInsert(x, 0, int32Buf,0, 8)
			SIXTEEN_ROUNDS(x);
			ptr = 0;
		}
	}
	ctx.state = x;
	ctx.ptr = ptr;
}
var cubehashClose = function(ctx) {
	var buf = ctx.buffer;
	var ptr = ctx.ptr;
	var x = new Array(Cubehash_StateSize);
	buf[ptr++] = 0x80;
	op.bufferSet(buf, ptr, 0, ctx.buffer.length - ptr);
	for (var i = 0; i < Cubehash_StateSize; i++) {
		x[i] = ctx.state[i];
	}
	var int32Buf = op.swap32Array(h.bytes2Int32Buffer(buf));
	op.bufferXORInsert(x, 0, int32Buf,0, 8)
	for (i = 0; i < 11; i++) {
		SIXTEEN_ROUNDS(x);
		if (i == 0)
			x[31] ^= 0xFFFFFFFF & (1);
	}
	ctx.state = x;
	var out = new Array(16);
	for (var u = 0; u < 16; u++)
		out[u] = op.swap32(ctx.state[u]);
	return out;
}

module.exports = function(input, format, output) {
  var msg;
  if (format === 1) {
    msg = input;
  }
  else if (format === 2) {
    msg = h.int32Buffer2Bytes(input);
  }
  else {
    msg = h.string2bytes(input);
  }
	var ctx = {};
	ctx.state = IV512;
	ctx.ptr = 0;
	ctx.buffer = new Array(Cubehash_BlockSize);
	cubehash(ctx, msg);
	var r = cubehashClose(ctx);
  var out;
  if (output === 2) {
    out = r;
  }
  else if (output === 1) {
    out = h.int32Buffer2Bytes(r)
  }
  else {
    out = h.int32ArrayToHexString(r)
  }
  return out;
}
},{"./helper":203,"./op":207}],201:[function(require,module,exports){
/////////////////////////////////////
///////////////  Echo ///////////////

//// Written by Quantum Explorer ////
////////// Dash Foundation //////////
/// Released under the MIT License //
/////////////////////////////////////

var op = require('./op');
var h = require('./helper');
var aes = require('./aes');

var ECHO_BlockSize = 128;

var subWords = function(W, pK) {
  for (var n = 0; n < 16; n++) {
    var X = W[n];
    var Y = new Array(4);
    aes.AES_ROUND_LE(X, pK, Y);
    aes.AES_ROUND_NOKEY_LE(Y, X);
    if ((pK[0] = op.t32(pK[0] + 1)) === 0) {
      if ((pK[1] = op.t32(pK[1] + 1)) === 0)
        if ((pK[2] = op.t32(pK[2] + 1)) === 0)
          pK[3] = op.t32(pK[3] + 1);
    }
  }
}

var shiftRow1 = function(W, a, b, c, d) {
  var tmp;
  tmp = W[a][0];
  W[a][0] = W[b][0];
  W[b][0] = W[c][0];
  W[c][0] = W[d][0];
  W[d][0] = tmp;
  tmp = W[a][1];
  W[a][1] = W[b][1];
  W[b][1] = W[c][1];
  W[c][1] = W[d][1];
  W[d][1] = tmp;
  tmp = W[a][2];
  W[a][2] = W[b][2];
  W[b][2] = W[c][2];
  W[c][2] = W[d][2];
  W[d][2] = tmp;
  tmp = W[a][3];
  W[a][3] = W[b][3];
  W[b][3] = W[c][3];
  W[c][3] = W[d][3];
  W[d][3] = tmp;
}

var shiftRow2 = function(W, a, b, c, d) {
  var tmp;
  tmp = W[a][0];
  W[a][0] = W[c][0];
  W[c][0] = tmp;
  tmp = W[b][0];
  W[b][0] = W[d][0];
  W[d][0] = tmp;
  tmp = W[a][1];
  W[a][1] = W[c][1];
  W[c][1] = tmp;
  tmp = W[b][1];
  W[b][1] = W[d][1];
  W[d][1] = tmp;
  tmp = W[a][2];
  W[a][2] = W[c][2];
  W[c][2] = tmp;
  tmp = W[b][2];
  W[b][2] = W[d][2];
  W[d][2] = tmp;
  tmp = W[a][3];
  W[a][3] = W[c][3];
  W[c][3] = tmp;
  tmp = W[b][3];
  W[b][3] = W[d][3];
  W[d][3] = tmp;
}

var shiftRow3 = function(W, a, b, c, d) {
  shiftRow1(W, d, c, b, a);
}

var shiftRows = function(W) {
  shiftRow1(W, 1, 5, 9, 13);
  shiftRow2(W, 2, 6, 10, 14);
  shiftRow3(W, 3, 7, 11, 15);
}

var mixColumn = function(W, ia, ib, ic, id) {
  for (var n = 0; n < 4; n++) {
    var a = W[ia][n];
    var b = W[ib][n];
    var c = W[ic][n];
    var d = W[id][n];
    var ab = a ^ b;
    var bc = b ^ c;
    var cd = c ^ d;
    var abx = ((ab & (0x80808080)) >>> 7) * 27 ^
      ((ab & (0x7F7F7F7F)) << 1);
    var bcx = ((bc & (0x80808080)) >>> 7) * 27 ^
      ((bc & (0x7F7F7F7F)) << 1);
    var cdx = ((cd & (0x80808080)) >>> 7) * 27 ^
      ((cd & (0x7F7F7F7F)) << 1);
    W[ia][n] = abx ^ bc ^ d;
    W[ib][n] = bcx ^ a ^ cd;
    W[ic][n] = cdx ^ ab ^ d;
    W[id][n] = abx ^ bcx ^ cdx ^ ab ^ c;
  }
}

var finalize = function(ctx, W) {
  var int32Buf = op.swap32Array(h.bytes2Int32Buffer(ctx.buffer));
  for (var u = 0; u < 8; u++) {
    for (var v = 0; v < 4; v++) {
      ctx.state[u][v] ^= int32Buf[u * 4 + v] ^ W[u][v] ^ W[u + 8][v];
    }
  }
}

var inputBlock = function(ctx, W) {
  op.buffer2Insert(W, 0, 0, ctx.state, 8, 4);
  var int32Buf = op.swap32Array(h.bytes2Int32Buffer(ctx.buffer));
  for (var u = 0; u < 8; u++) {
    W[u + 8][0] = (int32Buf[4 * u]);
    W[u + 8][1] = (int32Buf[4 * u + 1]);
    W[u + 8][2] = (int32Buf[4 * u + 2]);
    W[u + 8][3] = (int32Buf[4 * u + 3]);
  }
}

var mixColumns = function(W) {
  mixColumn(W, 0, 1, 2, 3);
  mixColumn(W, 4, 5, 6, 7);
  mixColumn(W, 8, 9, 10, 11);
  mixColumn(W, 12, 13, 14, 15);
}

var ROUND = function(W,K) {
  subWords(W,K);
  shiftRows(W);
  mixColumns(W);
}

var compress = function(ctx) {
  var W = new Array(16);
  for (var i = 0; i < 16; i++) {
    W[i] = new Array(4);
  }
  var K = new Array(4);
  op.bufferInsert(K,0,ctx.C,4);
  inputBlock(ctx, W);
  for (var u = 0; u < 10; u++) {
    ROUND(W,K);
  }
  finalize(ctx,W);
}

var incrCounter = function(ctx, val) {
  ctx.C[0] = op.t32(ctx.C[0] + op.t32(val));
  if (ctx.C[0] < op.t32(val)) {
    if ((ctx.C[1] = op.t32(ctx.C[1] + 1)) === 0) {
      if ((ctx.C[2] = op.t32(ctx.C[2] + 1)) === 0) {
        ctx.C[3] = op.t32(ctx.C[3] + 1);
      }
    }
  }
}

var echoInit = function(ctx) {
  ctx.state = new Array(8);
  for (var i = 0; i < 8; i++) {
    ctx.state[i] = new Array(4);
  }
  ctx.state[0][0] = 512;
  ctx.state[0][1] = ctx.state[0][2] = ctx.state[0][3] = 0;
  ctx.state[1][0] = 512;
  ctx.state[1][1] = ctx.state[1][2] = ctx.state[1][3] = 0;
  ctx.state[2][0] = 512;
  ctx.state[2][1] = ctx.state[2][2] = ctx.state[2][3] = 0;
  ctx.state[3][0] = 512;
  ctx.state[3][1] = ctx.state[3][2] = ctx.state[3][3] = 0;
  ctx.state[4][0] = 512;
  ctx.state[4][1] = ctx.state[4][2] = ctx.state[4][3] = 0;
  ctx.state[5][0] = 512;
  ctx.state[5][1] = ctx.state[5][2] = ctx.state[5][3] = 0;
  ctx.state[6][0] = 512;
  ctx.state[6][1] = ctx.state[6][2] = ctx.state[6][3] = 0;
  ctx.state[7][0] = 512;
  ctx.state[7][1] = ctx.state[7][2] = ctx.state[7][3] = 0;
  ctx.ptr = 0;
  ctx.C = new Array(4);
  op.bufferSet(ctx.C,0,0,4);
  ctx.buffer = new Array(ECHO_BlockSize);
}

var echo = function(ctx, data) {
  var buf, ptr;
  buf = ctx.buffer;
  ptr = ctx.ptr;
  var len = data.length;
  if (len < ctx.buffer.length - ptr) {
    op.bufferInsert(buf, ptr, data, data.length);
    ptr += data.length;
    ctx.ptr = ptr;
    return;
  }
  while (len > 0) {
    var clen = ctx.buffer.length - ptr;
    if (clen > len) clen = len;
    op.bufferInsert(buf, ptr, data, clen);
    ptr += clen;
    data = data.slice(clen);
    len -= clen;
    if (ptr === ctx.buffer.length) {
      var int32Buf = h.bytes2Int32Buffer(buf);
      incrCounter(ctx, 1024);
      compress(ctx);
      ptr = 0;
    }
  }
  ctx.ptr = ptr;
}

var echoClose = function(ctx) {
  var out = new Array(16);
  var buf = ctx.buffer;
  var len = ctx.buffer.length;
  var ptr = ctx.ptr;
  var elen = (ptr << 3);
  incrCounter(ctx, elen);
  var cBytes = h.int32Buffer2Bytes(op.swap32Array(ctx.C));
  /*
   * If elen is zero, then this block actually contains no message
   * bit, only the first padding bit.
   */
  if (elen === 0) {
    ctx.C[0] = ctx.C[1] = ctx.C[2] = ctx.C[3] = 0;
  }
  buf[ptr++] = 0x80;
  
  op.bufferSet(buf,ptr, 0, len - ptr);
  if (ptr > (len - 18)) {
    compress(ctx);
    op.bufferSet(ctx.C,0,0,4);
    op.bufferSet(buf, 0, 0,len);
  }
  buf[len - 17] = 2;
  op.bufferInsert(buf,len - 16, cBytes, 16);
  compress(ctx);
  for (var u = 0; u < 4; u++) {
    for (var v = 0; v < 4; v++) {
      out[u*4 + v] = op.swap32(ctx.state[u][v]);
    }
  }
  return out;
}

module.exports = function(input, format, output) {
  var msg;
  if (format === 1) {
    msg = input;
  }
  else if (format === 2) {
    msg = h.int32Buffer2Bytes(input);
  }
  else {
    msg = h.string2bytes(input);
  }
  var ctx = {};
  echoInit(ctx);
  echo(ctx, msg);
  var r = echoClose(ctx);
  var out;
  if (output === 2) {
    out = r;
  }
  else if (output === 1) {
    out = h.int32Buffer2Bytes(r)
  }
  else {
    out = h.int32ArrayToHexString(r)
  }
  return out;
}
},{"./aes":197,"./helper":203,"./op":207}],202:[function(require,module,exports){
/////////////////////////////////////
////////////  groestl ///////////////

//// Written by Quantum Explorer ////
////////// Dash Foundation //////////
/// Released under the MIT License //
/////////////////////////////////////

var op = require('./op');
var h = require('./helper');

var T0 = [
  new op.u64(0xc632f4a5, 0xf497a5c6), new op.u64(0xf86f9784, 0x97eb84f8),
  new op.u64(0xee5eb099, 0xb0c799ee), new op.u64(0xf67a8c8d, 0x8cf78df6),
  new op.u64(0xffe8170d, 0x17e50dff), new op.u64(0xd60adcbd, 0xdcb7bdd6),
  new op.u64(0xde16c8b1, 0xc8a7b1de), new op.u64(0x916dfc54, 0xfc395491),
  new op.u64(0x6090f050, 0xf0c05060), new op.u64(0x02070503, 0x05040302),
  new op.u64(0xce2ee0a9, 0xe087a9ce), new op.u64(0x56d1877d, 0x87ac7d56),
  new op.u64(0xe7cc2b19, 0x2bd519e7), new op.u64(0xb513a662, 0xa67162b5),
  new op.u64(0x4d7c31e6, 0x319ae64d), new op.u64(0xec59b59a, 0xb5c39aec),
  new op.u64(0x8f40cf45, 0xcf05458f), new op.u64(0x1fa3bc9d, 0xbc3e9d1f),
  new op.u64(0x8949c040, 0xc0094089), new op.u64(0xfa689287, 0x92ef87fa),
  new op.u64(0xefd03f15, 0x3fc515ef), new op.u64(0xb29426eb, 0x267febb2),
  new op.u64(0x8ece40c9, 0x4007c98e), new op.u64(0xfbe61d0b, 0x1ded0bfb),
  new op.u64(0x416e2fec, 0x2f82ec41), new op.u64(0xb31aa967, 0xa97d67b3),
  new op.u64(0x5f431cfd, 0x1cbefd5f), new op.u64(0x456025ea, 0x258aea45),
  new op.u64(0x23f9dabf, 0xda46bf23), new op.u64(0x535102f7, 0x02a6f753),
  new op.u64(0xe445a196, 0xa1d396e4), new op.u64(0x9b76ed5b, 0xed2d5b9b),
  new op.u64(0x75285dc2, 0x5deac275), new op.u64(0xe1c5241c, 0x24d91ce1),
  new op.u64(0x3dd4e9ae, 0xe97aae3d), new op.u64(0x4cf2be6a, 0xbe986a4c),
  new op.u64(0x6c82ee5a, 0xeed85a6c), new op.u64(0x7ebdc341, 0xc3fc417e),
  new op.u64(0xf5f30602, 0x06f102f5), new op.u64(0x8352d14f, 0xd11d4f83),
  new op.u64(0x688ce45c, 0xe4d05c68), new op.u64(0x515607f4, 0x07a2f451),
  new op.u64(0xd18d5c34, 0x5cb934d1), new op.u64(0xf9e11808, 0x18e908f9),
  new op.u64(0xe24cae93, 0xaedf93e2), new op.u64(0xab3e9573, 0x954d73ab),
  new op.u64(0x6297f553, 0xf5c45362), new op.u64(0x2a6b413f, 0x41543f2a),
  new op.u64(0x081c140c, 0x14100c08), new op.u64(0x9563f652, 0xf6315295),
  new op.u64(0x46e9af65, 0xaf8c6546), new op.u64(0x9d7fe25e, 0xe2215e9d),
  new op.u64(0x30487828, 0x78602830), new op.u64(0x37cff8a1, 0xf86ea137),
  new op.u64(0x0a1b110f, 0x11140f0a), new op.u64(0x2febc4b5, 0xc45eb52f),
  new op.u64(0x0e151b09, 0x1b1c090e), new op.u64(0x247e5a36, 0x5a483624),
  new op.u64(0x1badb69b, 0xb6369b1b), new op.u64(0xdf98473d, 0x47a53ddf),
  new op.u64(0xcda76a26, 0x6a8126cd), new op.u64(0x4ef5bb69, 0xbb9c694e),
  new op.u64(0x7f334ccd, 0x4cfecd7f), new op.u64(0xea50ba9f, 0xbacf9fea),
  new op.u64(0x123f2d1b, 0x2d241b12), new op.u64(0x1da4b99e, 0xb93a9e1d),
  new op.u64(0x58c49c74, 0x9cb07458), new op.u64(0x3446722e, 0x72682e34),
  new op.u64(0x3641772d, 0x776c2d36), new op.u64(0xdc11cdb2, 0xcda3b2dc),
  new op.u64(0xb49d29ee, 0x2973eeb4), new op.u64(0x5b4d16fb, 0x16b6fb5b),
  new op.u64(0xa4a501f6, 0x0153f6a4), new op.u64(0x76a1d74d, 0xd7ec4d76),
  new op.u64(0xb714a361, 0xa37561b7), new op.u64(0x7d3449ce, 0x49face7d),
  new op.u64(0x52df8d7b, 0x8da47b52), new op.u64(0xdd9f423e, 0x42a13edd),
  new op.u64(0x5ecd9371, 0x93bc715e), new op.u64(0x13b1a297, 0xa2269713),
  new op.u64(0xa6a204f5, 0x0457f5a6), new op.u64(0xb901b868, 0xb86968b9),
  new op.u64(0x00000000, 0x00000000), new op.u64(0xc1b5742c, 0x74992cc1),
  new op.u64(0x40e0a060, 0xa0806040), new op.u64(0xe3c2211f, 0x21dd1fe3),
  new op.u64(0x793a43c8, 0x43f2c879), new op.u64(0xb69a2ced, 0x2c77edb6),
  new op.u64(0xd40dd9be, 0xd9b3bed4), new op.u64(0x8d47ca46, 0xca01468d),
  new op.u64(0x671770d9, 0x70ced967), new op.u64(0x72afdd4b, 0xdde44b72),
  new op.u64(0x94ed79de, 0x7933de94), new op.u64(0x98ff67d4, 0x672bd498),
  new op.u64(0xb09323e8, 0x237be8b0), new op.u64(0x855bde4a, 0xde114a85),
  new op.u64(0xbb06bd6b, 0xbd6d6bbb), new op.u64(0xc5bb7e2a, 0x7e912ac5),
  new op.u64(0x4f7b34e5, 0x349ee54f), new op.u64(0xedd73a16, 0x3ac116ed),
  new op.u64(0x86d254c5, 0x5417c586), new op.u64(0x9af862d7, 0x622fd79a),
  new op.u64(0x6699ff55, 0xffcc5566), new op.u64(0x11b6a794, 0xa7229411),
  new op.u64(0x8ac04acf, 0x4a0fcf8a), new op.u64(0xe9d93010, 0x30c910e9),
  new op.u64(0x040e0a06, 0x0a080604), new op.u64(0xfe669881, 0x98e781fe),
  new op.u64(0xa0ab0bf0, 0x0b5bf0a0), new op.u64(0x78b4cc44, 0xccf04478),
  new op.u64(0x25f0d5ba, 0xd54aba25), new op.u64(0x4b753ee3, 0x3e96e34b),
  new op.u64(0xa2ac0ef3, 0x0e5ff3a2), new op.u64(0x5d4419fe, 0x19bafe5d),
  new op.u64(0x80db5bc0, 0x5b1bc080), new op.u64(0x0580858a, 0x850a8a05),
  new op.u64(0x3fd3ecad, 0xec7ead3f), new op.u64(0x21fedfbc, 0xdf42bc21),
  new op.u64(0x70a8d848, 0xd8e04870), new op.u64(0xf1fd0c04, 0x0cf904f1),
  new op.u64(0x63197adf, 0x7ac6df63), new op.u64(0x772f58c1, 0x58eec177),
  new op.u64(0xaf309f75, 0x9f4575af), new op.u64(0x42e7a563, 0xa5846342),
  new op.u64(0x20705030, 0x50403020), new op.u64(0xe5cb2e1a, 0x2ed11ae5),
  new op.u64(0xfdef120e, 0x12e10efd), new op.u64(0xbf08b76d, 0xb7656dbf),
  new op.u64(0x8155d44c, 0xd4194c81), new op.u64(0x18243c14, 0x3c301418),
  new op.u64(0x26795f35, 0x5f4c3526), new op.u64(0xc3b2712f, 0x719d2fc3),
  new op.u64(0xbe8638e1, 0x3867e1be), new op.u64(0x35c8fda2, 0xfd6aa235),
  new op.u64(0x88c74fcc, 0x4f0bcc88), new op.u64(0x2e654b39, 0x4b5c392e),
  new op.u64(0x936af957, 0xf93d5793), new op.u64(0x55580df2, 0x0daaf255),
  new op.u64(0xfc619d82, 0x9de382fc), new op.u64(0x7ab3c947, 0xc9f4477a),
  new op.u64(0xc827efac, 0xef8bacc8), new op.u64(0xba8832e7, 0x326fe7ba),
  new op.u64(0x324f7d2b, 0x7d642b32), new op.u64(0xe642a495, 0xa4d795e6),
  new op.u64(0xc03bfba0, 0xfb9ba0c0), new op.u64(0x19aab398, 0xb3329819),
  new op.u64(0x9ef668d1, 0x6827d19e), new op.u64(0xa322817f, 0x815d7fa3),
  new op.u64(0x44eeaa66, 0xaa886644), new op.u64(0x54d6827e, 0x82a87e54),
  new op.u64(0x3bdde6ab, 0xe676ab3b), new op.u64(0x0b959e83, 0x9e16830b),
  new op.u64(0x8cc945ca, 0x4503ca8c), new op.u64(0xc7bc7b29, 0x7b9529c7),
  new op.u64(0x6b056ed3, 0x6ed6d36b), new op.u64(0x286c443c, 0x44503c28),
  new op.u64(0xa72c8b79, 0x8b5579a7), new op.u64(0xbc813de2, 0x3d63e2bc),
  new op.u64(0x1631271d, 0x272c1d16), new op.u64(0xad379a76, 0x9a4176ad),
  new op.u64(0xdb964d3b, 0x4dad3bdb), new op.u64(0x649efa56, 0xfac85664),
  new op.u64(0x74a6d24e, 0xd2e84e74), new op.u64(0x1436221e, 0x22281e14),
  new op.u64(0x92e476db, 0x763fdb92), new op.u64(0x0c121e0a, 0x1e180a0c),
  new op.u64(0x48fcb46c, 0xb4906c48), new op.u64(0xb88f37e4, 0x376be4b8),
  new op.u64(0x9f78e75d, 0xe7255d9f), new op.u64(0xbd0fb26e, 0xb2616ebd),
  new op.u64(0x43692aef, 0x2a86ef43), new op.u64(0xc435f1a6, 0xf193a6c4),
  new op.u64(0x39dae3a8, 0xe372a839), new op.u64(0x31c6f7a4, 0xf762a431),
  new op.u64(0xd38a5937, 0x59bd37d3), new op.u64(0xf274868b, 0x86ff8bf2),
  new op.u64(0xd5835632, 0x56b132d5), new op.u64(0x8b4ec543, 0xc50d438b),
  new op.u64(0x6e85eb59, 0xebdc596e), new op.u64(0xda18c2b7, 0xc2afb7da),
  new op.u64(0x018e8f8c, 0x8f028c01), new op.u64(0xb11dac64, 0xac7964b1),
  new op.u64(0x9cf16dd2, 0x6d23d29c), new op.u64(0x49723be0, 0x3b92e049),
  new op.u64(0xd81fc7b4, 0xc7abb4d8), new op.u64(0xacb915fa, 0x1543faac),
  new op.u64(0xf3fa0907, 0x09fd07f3), new op.u64(0xcfa06f25, 0x6f8525cf),
  new op.u64(0xca20eaaf, 0xea8fafca), new op.u64(0xf47d898e, 0x89f38ef4),
  new op.u64(0x476720e9, 0x208ee947), new op.u64(0x10382818, 0x28201810),
  new op.u64(0x6f0b64d5, 0x64ded56f), new op.u64(0xf0738388, 0x83fb88f0),
  new op.u64(0x4afbb16f, 0xb1946f4a), new op.u64(0x5cca9672, 0x96b8725c),
  new op.u64(0x38546c24, 0x6c702438), new op.u64(0x575f08f1, 0x08aef157),
  new op.u64(0x732152c7, 0x52e6c773), new op.u64(0x9764f351, 0xf3355197),
  new op.u64(0xcbae6523, 0x658d23cb), new op.u64(0xa125847c, 0x84597ca1),
  new op.u64(0xe857bf9c, 0xbfcb9ce8), new op.u64(0x3e5d6321, 0x637c213e),
  new op.u64(0x96ea7cdd, 0x7c37dd96), new op.u64(0x611e7fdc, 0x7fc2dc61),
  new op.u64(0x0d9c9186, 0x911a860d), new op.u64(0x0f9b9485, 0x941e850f),
  new op.u64(0xe04bab90, 0xabdb90e0), new op.u64(0x7cbac642, 0xc6f8427c),
  new op.u64(0x712657c4, 0x57e2c471), new op.u64(0xcc29e5aa, 0xe583aacc),
  new op.u64(0x90e373d8, 0x733bd890), new op.u64(0x06090f05, 0x0f0c0506),
  new op.u64(0xf7f40301, 0x03f501f7), new op.u64(0x1c2a3612, 0x3638121c),
  new op.u64(0xc23cfea3, 0xfe9fa3c2), new op.u64(0x6a8be15f, 0xe1d45f6a),
  new op.u64(0xaebe10f9, 0x1047f9ae), new op.u64(0x69026bd0, 0x6bd2d069),
  new op.u64(0x17bfa891, 0xa82e9117), new op.u64(0x9971e858, 0xe8295899),
  new op.u64(0x3a536927, 0x6974273a), new op.u64(0x27f7d0b9, 0xd04eb927),
  new op.u64(0xd9914838, 0x48a938d9), new op.u64(0xebde3513, 0x35cd13eb),
  new op.u64(0x2be5ceb3, 0xce56b32b), new op.u64(0x22775533, 0x55443322),
  new op.u64(0xd204d6bb, 0xd6bfbbd2), new op.u64(0xa9399070, 0x904970a9),
  new op.u64(0x07878089, 0x800e8907), new op.u64(0x33c1f2a7, 0xf266a733),
  new op.u64(0x2decc1b6, 0xc15ab62d), new op.u64(0x3c5a6622, 0x6678223c),
  new op.u64(0x15b8ad92, 0xad2a9215), new op.u64(0xc9a96020, 0x608920c9),
  new op.u64(0x875cdb49, 0xdb154987), new op.u64(0xaab01aff, 0x1a4fffaa),
  new op.u64(0x50d88878, 0x88a07850), new op.u64(0xa52b8e7a, 0x8e517aa5),
  new op.u64(0x03898a8f, 0x8a068f03), new op.u64(0x594a13f8, 0x13b2f859),
  new op.u64(0x09929b80, 0x9b128009), new op.u64(0x1a233917, 0x3934171a),
  new op.u64(0x651075da, 0x75cada65), new op.u64(0xd7845331, 0x53b531d7),
  new op.u64(0x84d551c6, 0x5113c684), new op.u64(0xd003d3b8, 0xd3bbb8d0),
  new op.u64(0x82dc5ec3, 0x5e1fc382), new op.u64(0x29e2cbb0, 0xcb52b029),
  new op.u64(0x5ac39977, 0x99b4775a), new op.u64(0x1e2d3311, 0x333c111e),
  new op.u64(0x7b3d46cb, 0x46f6cb7b), new op.u64(0xa8b71ffc, 0x1f4bfca8),
  new op.u64(0x6d0c61d6, 0x61dad66d), new op.u64(0x2c624e3a, 0x4e583a2c)
];

var T1 = [
  new op.u64(0xc6c632f4, 0xa5f497a5), new op.u64(0xf8f86f97, 0x8497eb84),
  new op.u64(0xeeee5eb0, 0x99b0c799), new op.u64(0xf6f67a8c, 0x8d8cf78d),
  new op.u64(0xffffe817, 0xd17e50d), new op.u64(0xd6d60adc, 0xbddcb7bd),
  new op.u64(0xdede16c8, 0xb1c8a7b1), new op.u64(0x91916dfc, 0x54fc3954),
  new op.u64(0x606090f0, 0x50f0c050), new op.u64(0x2020705, 0x3050403),
  new op.u64(0xcece2ee0, 0xa9e087a9), new op.u64(0x5656d187, 0x7d87ac7d),
  new op.u64(0xe7e7cc2b, 0x192bd519), new op.u64(0xb5b513a6, 0x62a67162),
  new op.u64(0x4d4d7c31, 0xe6319ae6), new op.u64(0xecec59b5, 0x9ab5c39a),
  new op.u64(0x8f8f40cf, 0x45cf0545), new op.u64(0x1f1fa3bc, 0x9dbc3e9d),
  new op.u64(0x898949c0, 0x40c00940), new op.u64(0xfafa6892, 0x8792ef87),
  new op.u64(0xefefd03f, 0x153fc515), new op.u64(0xb2b29426, 0xeb267feb),
  new op.u64(0x8e8ece40, 0xc94007c9), new op.u64(0xfbfbe61d, 0xb1ded0b),
  new op.u64(0x41416e2f, 0xec2f82ec), new op.u64(0xb3b31aa9, 0x67a97d67),
  new op.u64(0x5f5f431c, 0xfd1cbefd), new op.u64(0x45456025, 0xea258aea),
  new op.u64(0x2323f9da, 0xbfda46bf), new op.u64(0x53535102, 0xf702a6f7),
  new op.u64(0xe4e445a1, 0x96a1d396), new op.u64(0x9b9b76ed, 0x5bed2d5b),
  new op.u64(0x7575285d, 0xc25deac2), new op.u64(0xe1e1c524, 0x1c24d91c),
  new op.u64(0x3d3dd4e9, 0xaee97aae), new op.u64(0x4c4cf2be, 0x6abe986a),
  new op.u64(0x6c6c82ee, 0x5aeed85a), new op.u64(0x7e7ebdc3, 0x41c3fc41),
  new op.u64(0xf5f5f306, 0x206f102), new op.u64(0x838352d1, 0x4fd11d4f),
  new op.u64(0x68688ce4, 0x5ce4d05c), new op.u64(0x51515607, 0xf407a2f4),
  new op.u64(0xd1d18d5c, 0x345cb934), new op.u64(0xf9f9e118, 0x818e908),
  new op.u64(0xe2e24cae, 0x93aedf93), new op.u64(0xabab3e95, 0x73954d73),
  new op.u64(0x626297f5, 0x53f5c453), new op.u64(0x2a2a6b41, 0x3f41543f),
  new op.u64(0x8081c14, 0xc14100c), new op.u64(0x959563f6, 0x52f63152),
  new op.u64(0x4646e9af, 0x65af8c65), new op.u64(0x9d9d7fe2, 0x5ee2215e),
  new op.u64(0x30304878, 0x28786028), new op.u64(0x3737cff8, 0xa1f86ea1),
  new op.u64(0xa0a1b11, 0xf11140f), new op.u64(0x2f2febc4, 0xb5c45eb5),
  new op.u64(0xe0e151b, 0x91b1c09), new op.u64(0x24247e5a, 0x365a4836),
  new op.u64(0x1b1badb6, 0x9bb6369b), new op.u64(0xdfdf9847, 0x3d47a53d),
  new op.u64(0xcdcda76a, 0x266a8126), new op.u64(0x4e4ef5bb, 0x69bb9c69),
  new op.u64(0x7f7f334c, 0xcd4cfecd), new op.u64(0xeaea50ba, 0x9fbacf9f),
  new op.u64(0x12123f2d, 0x1b2d241b), new op.u64(0x1d1da4b9, 0x9eb93a9e),
  new op.u64(0x5858c49c, 0x749cb074), new op.u64(0x34344672, 0x2e72682e),
  new op.u64(0x36364177, 0x2d776c2d), new op.u64(0xdcdc11cd, 0xb2cda3b2),
  new op.u64(0xb4b49d29, 0xee2973ee), new op.u64(0x5b5b4d16, 0xfb16b6fb),
  new op.u64(0xa4a4a501, 0xf60153f6), new op.u64(0x7676a1d7, 0x4dd7ec4d),
  new op.u64(0xb7b714a3, 0x61a37561), new op.u64(0x7d7d3449, 0xce49face),
  new op.u64(0x5252df8d, 0x7b8da47b), new op.u64(0xdddd9f42, 0x3e42a13e),
  new op.u64(0x5e5ecd93, 0x7193bc71), new op.u64(0x1313b1a2, 0x97a22697),
  new op.u64(0xa6a6a204, 0xf50457f5), new op.u64(0xb9b901b8, 0x68b86968),
  new op.u64(0x0, 0x0), new op.u64(0xc1c1b574, 0x2c74992c),
  new op.u64(0x4040e0a0, 0x60a08060), new op.u64(0xe3e3c221, 0x1f21dd1f),
  new op.u64(0x79793a43, 0xc843f2c8), new op.u64(0xb6b69a2c, 0xed2c77ed),
  new op.u64(0xd4d40dd9, 0xbed9b3be), new op.u64(0x8d8d47ca, 0x46ca0146),
  new op.u64(0x67671770, 0xd970ced9), new op.u64(0x7272afdd, 0x4bdde44b),
  new op.u64(0x9494ed79, 0xde7933de), new op.u64(0x9898ff67, 0xd4672bd4),
  new op.u64(0xb0b09323, 0xe8237be8), new op.u64(0x85855bde, 0x4ade114a),
  new op.u64(0xbbbb06bd, 0x6bbd6d6b), new op.u64(0xc5c5bb7e, 0x2a7e912a),
  new op.u64(0x4f4f7b34, 0xe5349ee5), new op.u64(0xededd73a, 0x163ac116),
  new op.u64(0x8686d254, 0xc55417c5), new op.u64(0x9a9af862, 0xd7622fd7),
  new op.u64(0x666699ff, 0x55ffcc55), new op.u64(0x1111b6a7, 0x94a72294),
  new op.u64(0x8a8ac04a, 0xcf4a0fcf), new op.u64(0xe9e9d930, 0x1030c910),
  new op.u64(0x4040e0a, 0x60a0806), new op.u64(0xfefe6698, 0x8198e781),
  new op.u64(0xa0a0ab0b, 0xf00b5bf0), new op.u64(0x7878b4cc, 0x44ccf044),
  new op.u64(0x2525f0d5, 0xbad54aba), new op.u64(0x4b4b753e, 0xe33e96e3),
  new op.u64(0xa2a2ac0e, 0xf30e5ff3), new op.u64(0x5d5d4419, 0xfe19bafe),
  new op.u64(0x8080db5b, 0xc05b1bc0), new op.u64(0x5058085, 0x8a850a8a),
  new op.u64(0x3f3fd3ec, 0xadec7ead), new op.u64(0x2121fedf, 0xbcdf42bc),
  new op.u64(0x7070a8d8, 0x48d8e048), new op.u64(0xf1f1fd0c, 0x40cf904),
  new op.u64(0x6363197a, 0xdf7ac6df), new op.u64(0x77772f58, 0xc158eec1),
  new op.u64(0xafaf309f, 0x759f4575), new op.u64(0x4242e7a5, 0x63a58463),
  new op.u64(0x20207050, 0x30504030), new op.u64(0xe5e5cb2e, 0x1a2ed11a),
  new op.u64(0xfdfdef12, 0xe12e10e), new op.u64(0xbfbf08b7, 0x6db7656d),
  new op.u64(0x818155d4, 0x4cd4194c), new op.u64(0x1818243c, 0x143c3014),
  new op.u64(0x2626795f, 0x355f4c35), new op.u64(0xc3c3b271, 0x2f719d2f),
  new op.u64(0xbebe8638, 0xe13867e1), new op.u64(0x3535c8fd, 0xa2fd6aa2),
  new op.u64(0x8888c74f, 0xcc4f0bcc), new op.u64(0x2e2e654b, 0x394b5c39),
  new op.u64(0x93936af9, 0x57f93d57), new op.u64(0x5555580d, 0xf20daaf2),
  new op.u64(0xfcfc619d, 0x829de382), new op.u64(0x7a7ab3c9, 0x47c9f447),
  new op.u64(0xc8c827ef, 0xacef8bac), new op.u64(0xbaba8832, 0xe7326fe7),
  new op.u64(0x32324f7d, 0x2b7d642b), new op.u64(0xe6e642a4, 0x95a4d795),
  new op.u64(0xc0c03bfb, 0xa0fb9ba0), new op.u64(0x1919aab3, 0x98b33298),
  new op.u64(0x9e9ef668, 0xd16827d1), new op.u64(0xa3a32281, 0x7f815d7f),
  new op.u64(0x4444eeaa, 0x66aa8866), new op.u64(0x5454d682, 0x7e82a87e),
  new op.u64(0x3b3bdde6, 0xabe676ab), new op.u64(0xb0b959e, 0x839e1683),
  new op.u64(0x8c8cc945, 0xca4503ca), new op.u64(0xc7c7bc7b, 0x297b9529),
  new op.u64(0x6b6b056e, 0xd36ed6d3), new op.u64(0x28286c44, 0x3c44503c),
  new op.u64(0xa7a72c8b, 0x798b5579), new op.u64(0xbcbc813d, 0xe23d63e2),
  new op.u64(0x16163127, 0x1d272c1d), new op.u64(0xadad379a, 0x769a4176),
  new op.u64(0xdbdb964d, 0x3b4dad3b), new op.u64(0x64649efa, 0x56fac856),
  new op.u64(0x7474a6d2, 0x4ed2e84e), new op.u64(0x14143622, 0x1e22281e),
  new op.u64(0x9292e476, 0xdb763fdb), new op.u64(0xc0c121e, 0xa1e180a),
  new op.u64(0x4848fcb4, 0x6cb4906c), new op.u64(0xb8b88f37, 0xe4376be4),
  new op.u64(0x9f9f78e7, 0x5de7255d), new op.u64(0xbdbd0fb2, 0x6eb2616e),
  new op.u64(0x4343692a, 0xef2a86ef), new op.u64(0xc4c435f1, 0xa6f193a6),
  new op.u64(0x3939dae3, 0xa8e372a8), new op.u64(0x3131c6f7, 0xa4f762a4),
  new op.u64(0xd3d38a59, 0x3759bd37), new op.u64(0xf2f27486, 0x8b86ff8b),
  new op.u64(0xd5d58356, 0x3256b132), new op.u64(0x8b8b4ec5, 0x43c50d43),
  new op.u64(0x6e6e85eb, 0x59ebdc59), new op.u64(0xdada18c2, 0xb7c2afb7),
  new op.u64(0x1018e8f, 0x8c8f028c), new op.u64(0xb1b11dac, 0x64ac7964),
  new op.u64(0x9c9cf16d, 0xd26d23d2), new op.u64(0x4949723b, 0xe03b92e0),
  new op.u64(0xd8d81fc7, 0xb4c7abb4), new op.u64(0xacacb915, 0xfa1543fa),
  new op.u64(0xf3f3fa09, 0x709fd07), new op.u64(0xcfcfa06f, 0x256f8525),
  new op.u64(0xcaca20ea, 0xafea8faf), new op.u64(0xf4f47d89, 0x8e89f38e),
  new op.u64(0x47476720, 0xe9208ee9), new op.u64(0x10103828, 0x18282018),
  new op.u64(0x6f6f0b64, 0xd564ded5), new op.u64(0xf0f07383, 0x8883fb88),
  new op.u64(0x4a4afbb1, 0x6fb1946f), new op.u64(0x5c5cca96, 0x7296b872),
  new op.u64(0x3838546c, 0x246c7024), new op.u64(0x57575f08, 0xf108aef1),
  new op.u64(0x73732152, 0xc752e6c7), new op.u64(0x979764f3, 0x51f33551),
  new op.u64(0xcbcbae65, 0x23658d23), new op.u64(0xa1a12584, 0x7c84597c),
  new op.u64(0xe8e857bf, 0x9cbfcb9c), new op.u64(0x3e3e5d63, 0x21637c21),
  new op.u64(0x9696ea7c, 0xdd7c37dd), new op.u64(0x61611e7f, 0xdc7fc2dc),
  new op.u64(0xd0d9c91, 0x86911a86), new op.u64(0xf0f9b94, 0x85941e85),
  new op.u64(0xe0e04bab, 0x90abdb90), new op.u64(0x7c7cbac6, 0x42c6f842),
  new op.u64(0x71712657, 0xc457e2c4), new op.u64(0xcccc29e5, 0xaae583aa),
  new op.u64(0x9090e373, 0xd8733bd8), new op.u64(0x606090f, 0x50f0c05),
  new op.u64(0xf7f7f403, 0x103f501), new op.u64(0x1c1c2a36, 0x12363812),
  new op.u64(0xc2c23cfe, 0xa3fe9fa3), new op.u64(0x6a6a8be1, 0x5fe1d45f),
  new op.u64(0xaeaebe10, 0xf91047f9), new op.u64(0x6969026b, 0xd06bd2d0),
  new op.u64(0x1717bfa8, 0x91a82e91), new op.u64(0x999971e8, 0x58e82958),
  new op.u64(0x3a3a5369, 0x27697427), new op.u64(0x2727f7d0, 0xb9d04eb9),
  new op.u64(0xd9d99148, 0x3848a938), new op.u64(0xebebde35, 0x1335cd13),
  new op.u64(0x2b2be5ce, 0xb3ce56b3), new op.u64(0x22227755, 0x33554433),
  new op.u64(0xd2d204d6, 0xbbd6bfbb), new op.u64(0xa9a93990, 0x70904970),
  new op.u64(0x7078780, 0x89800e89), new op.u64(0x3333c1f2, 0xa7f266a7),
  new op.u64(0x2d2decc1, 0xb6c15ab6), new op.u64(0x3c3c5a66, 0x22667822),
  new op.u64(0x1515b8ad, 0x92ad2a92), new op.u64(0xc9c9a960, 0x20608920),
  new op.u64(0x87875cdb, 0x49db1549), new op.u64(0xaaaab01a, 0xff1a4fff),
  new op.u64(0x5050d888, 0x7888a078), new op.u64(0xa5a52b8e, 0x7a8e517a),
  new op.u64(0x303898a, 0x8f8a068f), new op.u64(0x59594a13, 0xf813b2f8),
  new op.u64(0x909929b, 0x809b1280), new op.u64(0x1a1a2339, 0x17393417),
  new op.u64(0x65651075, 0xda75cada), new op.u64(0xd7d78453, 0x3153b531),
  new op.u64(0x8484d551, 0xc65113c6), new op.u64(0xd0d003d3, 0xb8d3bbb8),
  new op.u64(0x8282dc5e, 0xc35e1fc3), new op.u64(0x2929e2cb, 0xb0cb52b0),
  new op.u64(0x5a5ac399, 0x7799b477), new op.u64(0x1e1e2d33, 0x11333c11),
  new op.u64(0x7b7b3d46, 0xcb46f6cb), new op.u64(0xa8a8b71f, 0xfc1f4bfc),
  new op.u64(0x6d6d0c61, 0xd661dad6), new op.u64(0x2c2c624e, 0x3a4e583a)
];

var T2 = [
  new op.u64(0xa5c6c632, 0xf4a5f497), new op.u64(0x84f8f86f, 0x978497eb),
  new op.u64(0x99eeee5e, 0xb099b0c7), new op.u64(0x8df6f67a, 0x8c8d8cf7),
  new op.u64(0xdffffe8, 0x170d17e5), new op.u64(0xbdd6d60a, 0xdcbddcb7),
  new op.u64(0xb1dede16, 0xc8b1c8a7), new op.u64(0x5491916d, 0xfc54fc39),
  new op.u64(0x50606090, 0xf050f0c0), new op.u64(0x3020207, 0x5030504),
  new op.u64(0xa9cece2e, 0xe0a9e087), new op.u64(0x7d5656d1, 0x877d87ac),
  new op.u64(0x19e7e7cc, 0x2b192bd5), new op.u64(0x62b5b513, 0xa662a671),
  new op.u64(0xe64d4d7c, 0x31e6319a), new op.u64(0x9aecec59, 0xb59ab5c3),
  new op.u64(0x458f8f40, 0xcf45cf05), new op.u64(0x9d1f1fa3, 0xbc9dbc3e),
  new op.u64(0x40898949, 0xc040c009), new op.u64(0x87fafa68, 0x928792ef),
  new op.u64(0x15efefd0, 0x3f153fc5), new op.u64(0xebb2b294, 0x26eb267f),
  new op.u64(0xc98e8ece, 0x40c94007), new op.u64(0xbfbfbe6, 0x1d0b1ded),
  new op.u64(0xec41416e, 0x2fec2f82), new op.u64(0x67b3b31a, 0xa967a97d),
  new op.u64(0xfd5f5f43, 0x1cfd1cbe), new op.u64(0xea454560, 0x25ea258a),
  new op.u64(0xbf2323f9, 0xdabfda46), new op.u64(0xf7535351, 0x2f702a6),
  new op.u64(0x96e4e445, 0xa196a1d3), new op.u64(0x5b9b9b76, 0xed5bed2d),
  new op.u64(0xc2757528, 0x5dc25dea), new op.u64(0x1ce1e1c5, 0x241c24d9),
  new op.u64(0xae3d3dd4, 0xe9aee97a), new op.u64(0x6a4c4cf2, 0xbe6abe98),
  new op.u64(0x5a6c6c82, 0xee5aeed8), new op.u64(0x417e7ebd, 0xc341c3fc),
  new op.u64(0x2f5f5f3, 0x60206f1), new op.u64(0x4f838352, 0xd14fd11d),
  new op.u64(0x5c68688c, 0xe45ce4d0), new op.u64(0xf4515156, 0x7f407a2),
  new op.u64(0x34d1d18d, 0x5c345cb9), new op.u64(0x8f9f9e1, 0x180818e9),
  new op.u64(0x93e2e24c, 0xae93aedf), new op.u64(0x73abab3e, 0x9573954d),
  new op.u64(0x53626297, 0xf553f5c4), new op.u64(0x3f2a2a6b, 0x413f4154),
  new op.u64(0xc08081c, 0x140c1410), new op.u64(0x52959563, 0xf652f631),
  new op.u64(0x654646e9, 0xaf65af8c), new op.u64(0x5e9d9d7f, 0xe25ee221),
  new op.u64(0x28303048, 0x78287860), new op.u64(0xa13737cf, 0xf8a1f86e),
  new op.u64(0xf0a0a1b, 0x110f1114), new op.u64(0xb52f2feb, 0xc4b5c45e),
  new op.u64(0x90e0e15, 0x1b091b1c), new op.u64(0x3624247e, 0x5a365a48),
  new op.u64(0x9b1b1bad, 0xb69bb636), new op.u64(0x3ddfdf98, 0x473d47a5),
  new op.u64(0x26cdcda7, 0x6a266a81), new op.u64(0x694e4ef5, 0xbb69bb9c),
  new op.u64(0xcd7f7f33, 0x4ccd4cfe), new op.u64(0x9feaea50, 0xba9fbacf),
  new op.u64(0x1b12123f, 0x2d1b2d24), new op.u64(0x9e1d1da4, 0xb99eb93a),
  new op.u64(0x745858c4, 0x9c749cb0), new op.u64(0x2e343446, 0x722e7268),
  new op.u64(0x2d363641, 0x772d776c), new op.u64(0xb2dcdc11, 0xcdb2cda3),
  new op.u64(0xeeb4b49d, 0x29ee2973), new op.u64(0xfb5b5b4d, 0x16fb16b6),
  new op.u64(0xf6a4a4a5, 0x1f60153), new op.u64(0x4d7676a1, 0xd74dd7ec),
  new op.u64(0x61b7b714, 0xa361a375), new op.u64(0xce7d7d34, 0x49ce49fa),
  new op.u64(0x7b5252df, 0x8d7b8da4), new op.u64(0x3edddd9f, 0x423e42a1),
  new op.u64(0x715e5ecd, 0x937193bc), new op.u64(0x971313b1, 0xa297a226),
  new op.u64(0xf5a6a6a2, 0x4f50457), new op.u64(0x68b9b901, 0xb868b869),
  new op.u64(0x0, 0x0), new op.u64(0x2cc1c1b5, 0x742c7499),
  new op.u64(0x604040e0, 0xa060a080), new op.u64(0x1fe3e3c2, 0x211f21dd),
  new op.u64(0xc879793a, 0x43c843f2), new op.u64(0xedb6b69a, 0x2ced2c77),
  new op.u64(0xbed4d40d, 0xd9bed9b3), new op.u64(0x468d8d47, 0xca46ca01),
  new op.u64(0xd9676717, 0x70d970ce), new op.u64(0x4b7272af, 0xdd4bdde4),
  new op.u64(0xde9494ed, 0x79de7933), new op.u64(0xd49898ff, 0x67d4672b),
  new op.u64(0xe8b0b093, 0x23e8237b), new op.u64(0x4a85855b, 0xde4ade11),
  new op.u64(0x6bbbbb06, 0xbd6bbd6d), new op.u64(0x2ac5c5bb, 0x7e2a7e91),
  new op.u64(0xe54f4f7b, 0x34e5349e), new op.u64(0x16ededd7, 0x3a163ac1),
  new op.u64(0xc58686d2, 0x54c55417), new op.u64(0xd79a9af8, 0x62d7622f),
  new op.u64(0x55666699, 0xff55ffcc), new op.u64(0x941111b6, 0xa794a722),
  new op.u64(0xcf8a8ac0, 0x4acf4a0f), new op.u64(0x10e9e9d9, 0x301030c9),
  new op.u64(0x604040e, 0xa060a08), new op.u64(0x81fefe66, 0x988198e7),
  new op.u64(0xf0a0a0ab, 0xbf00b5b), new op.u64(0x447878b4, 0xcc44ccf0),
  new op.u64(0xba2525f0, 0xd5bad54a), new op.u64(0xe34b4b75, 0x3ee33e96),
  new op.u64(0xf3a2a2ac, 0xef30e5f), new op.u64(0xfe5d5d44, 0x19fe19ba),
  new op.u64(0xc08080db, 0x5bc05b1b), new op.u64(0x8a050580, 0x858a850a),
  new op.u64(0xad3f3fd3, 0xecadec7e), new op.u64(0xbc2121fe, 0xdfbcdf42),
  new op.u64(0x487070a8, 0xd848d8e0), new op.u64(0x4f1f1fd, 0xc040cf9),
  new op.u64(0xdf636319, 0x7adf7ac6), new op.u64(0xc177772f, 0x58c158ee),
  new op.u64(0x75afaf30, 0x9f759f45), new op.u64(0x634242e7, 0xa563a584),
  new op.u64(0x30202070, 0x50305040), new op.u64(0x1ae5e5cb, 0x2e1a2ed1),
  new op.u64(0xefdfdef, 0x120e12e1), new op.u64(0x6dbfbf08, 0xb76db765),
  new op.u64(0x4c818155, 0xd44cd419), new op.u64(0x14181824, 0x3c143c30),
  new op.u64(0x35262679, 0x5f355f4c), new op.u64(0x2fc3c3b2, 0x712f719d),
  new op.u64(0xe1bebe86, 0x38e13867), new op.u64(0xa23535c8, 0xfda2fd6a),
  new op.u64(0xcc8888c7, 0x4fcc4f0b), new op.u64(0x392e2e65, 0x4b394b5c),
  new op.u64(0x5793936a, 0xf957f93d), new op.u64(0xf2555558, 0xdf20daa),
  new op.u64(0x82fcfc61, 0x9d829de3), new op.u64(0x477a7ab3, 0xc947c9f4),
  new op.u64(0xacc8c827, 0xefacef8b), new op.u64(0xe7baba88, 0x32e7326f),
  new op.u64(0x2b32324f, 0x7d2b7d64), new op.u64(0x95e6e642, 0xa495a4d7),
  new op.u64(0xa0c0c03b, 0xfba0fb9b), new op.u64(0x981919aa, 0xb398b332),
  new op.u64(0xd19e9ef6, 0x68d16827), new op.u64(0x7fa3a322, 0x817f815d),
  new op.u64(0x664444ee, 0xaa66aa88), new op.u64(0x7e5454d6, 0x827e82a8),
  new op.u64(0xab3b3bdd, 0xe6abe676), new op.u64(0x830b0b95, 0x9e839e16),
  new op.u64(0xca8c8cc9, 0x45ca4503), new op.u64(0x29c7c7bc, 0x7b297b95),
  new op.u64(0xd36b6b05, 0x6ed36ed6), new op.u64(0x3c28286c, 0x443c4450),
  new op.u64(0x79a7a72c, 0x8b798b55), new op.u64(0xe2bcbc81, 0x3de23d63),
  new op.u64(0x1d161631, 0x271d272c), new op.u64(0x76adad37, 0x9a769a41),
  new op.u64(0x3bdbdb96, 0x4d3b4dad), new op.u64(0x5664649e, 0xfa56fac8),
  new op.u64(0x4e7474a6, 0xd24ed2e8), new op.u64(0x1e141436, 0x221e2228),
  new op.u64(0xdb9292e4, 0x76db763f), new op.u64(0xa0c0c12, 0x1e0a1e18),
  new op.u64(0x6c4848fc, 0xb46cb490), new op.u64(0xe4b8b88f, 0x37e4376b),
  new op.u64(0x5d9f9f78, 0xe75de725), new op.u64(0x6ebdbd0f, 0xb26eb261),
  new op.u64(0xef434369, 0x2aef2a86), new op.u64(0xa6c4c435, 0xf1a6f193),
  new op.u64(0xa83939da, 0xe3a8e372), new op.u64(0xa43131c6, 0xf7a4f762),
  new op.u64(0x37d3d38a, 0x593759bd), new op.u64(0x8bf2f274, 0x868b86ff),
  new op.u64(0x32d5d583, 0x563256b1), new op.u64(0x438b8b4e, 0xc543c50d),
  new op.u64(0x596e6e85, 0xeb59ebdc), new op.u64(0xb7dada18, 0xc2b7c2af),
  new op.u64(0x8c01018e, 0x8f8c8f02), new op.u64(0x64b1b11d, 0xac64ac79),
  new op.u64(0xd29c9cf1, 0x6dd26d23), new op.u64(0xe0494972, 0x3be03b92),
  new op.u64(0xb4d8d81f, 0xc7b4c7ab), new op.u64(0xfaacacb9, 0x15fa1543),
  new op.u64(0x7f3f3fa, 0x90709fd), new op.u64(0x25cfcfa0, 0x6f256f85),
  new op.u64(0xafcaca20, 0xeaafea8f), new op.u64(0x8ef4f47d, 0x898e89f3),
  new op.u64(0xe9474767, 0x20e9208e), new op.u64(0x18101038, 0x28182820),
  new op.u64(0xd56f6f0b, 0x64d564de), new op.u64(0x88f0f073, 0x838883fb),
  new op.u64(0x6f4a4afb, 0xb16fb194), new op.u64(0x725c5cca, 0x967296b8),
  new op.u64(0x24383854, 0x6c246c70), new op.u64(0xf157575f, 0x8f108ae),
  new op.u64(0xc7737321, 0x52c752e6), new op.u64(0x51979764, 0xf351f335),
  new op.u64(0x23cbcbae, 0x6523658d), new op.u64(0x7ca1a125, 0x847c8459),
  new op.u64(0x9ce8e857, 0xbf9cbfcb), new op.u64(0x213e3e5d, 0x6321637c),
  new op.u64(0xdd9696ea, 0x7cdd7c37), new op.u64(0xdc61611e, 0x7fdc7fc2),
  new op.u64(0x860d0d9c, 0x9186911a), new op.u64(0x850f0f9b, 0x9485941e),
  new op.u64(0x90e0e04b, 0xab90abdb), new op.u64(0x427c7cba, 0xc642c6f8),
  new op.u64(0xc4717126, 0x57c457e2), new op.u64(0xaacccc29, 0xe5aae583),
  new op.u64(0xd89090e3, 0x73d8733b), new op.u64(0x5060609, 0xf050f0c),
  new op.u64(0x1f7f7f4, 0x30103f5), new op.u64(0x121c1c2a, 0x36123638),
  new op.u64(0xa3c2c23c, 0xfea3fe9f), new op.u64(0x5f6a6a8b, 0xe15fe1d4),
  new op.u64(0xf9aeaebe, 0x10f91047), new op.u64(0xd0696902, 0x6bd06bd2),
  new op.u64(0x911717bf, 0xa891a82e), new op.u64(0x58999971, 0xe858e829),
  new op.u64(0x273a3a53, 0x69276974), new op.u64(0xb92727f7, 0xd0b9d04e),
  new op.u64(0x38d9d991, 0x483848a9), new op.u64(0x13ebebde, 0x351335cd),
  new op.u64(0xb32b2be5, 0xceb3ce56), new op.u64(0x33222277, 0x55335544),
  new op.u64(0xbbd2d204, 0xd6bbd6bf), new op.u64(0x70a9a939, 0x90709049),
  new op.u64(0x89070787, 0x8089800e), new op.u64(0xa73333c1, 0xf2a7f266),
  new op.u64(0xb62d2dec, 0xc1b6c15a), new op.u64(0x223c3c5a, 0x66226678),
  new op.u64(0x921515b8, 0xad92ad2a), new op.u64(0x20c9c9a9, 0x60206089),
  new op.u64(0x4987875c, 0xdb49db15), new op.u64(0xffaaaab0, 0x1aff1a4f),
  new op.u64(0x785050d8, 0x887888a0), new op.u64(0x7aa5a52b, 0x8e7a8e51),
  new op.u64(0x8f030389, 0x8a8f8a06), new op.u64(0xf859594a, 0x13f813b2),
  new op.u64(0x80090992, 0x9b809b12), new op.u64(0x171a1a23, 0x39173934),
  new op.u64(0xda656510, 0x75da75ca), new op.u64(0x31d7d784, 0x533153b5),
  new op.u64(0xc68484d5, 0x51c65113), new op.u64(0xb8d0d003, 0xd3b8d3bb),
  new op.u64(0xc38282dc, 0x5ec35e1f), new op.u64(0xb02929e2, 0xcbb0cb52),
  new op.u64(0x775a5ac3, 0x997799b4), new op.u64(0x111e1e2d, 0x3311333c),
  new op.u64(0xcb7b7b3d, 0x46cb46f6), new op.u64(0xfca8a8b7, 0x1ffc1f4b),
  new op.u64(0xd66d6d0c, 0x61d661da), new op.u64(0x3a2c2c62, 0x4e3a4e58)
];

var T3 = [
  new op.u64(0x97a5c6c6, 0x32f4a5f4), new op.u64(0xeb84f8f8, 0x6f978497),
  new op.u64(0xc799eeee, 0x5eb099b0), new op.u64(0xf78df6f6, 0x7a8c8d8c),
  new op.u64(0xe50dffff, 0xe8170d17), new op.u64(0xb7bdd6d6, 0xadcbddc),
  new op.u64(0xa7b1dede, 0x16c8b1c8), new op.u64(0x39549191, 0x6dfc54fc),
  new op.u64(0xc0506060, 0x90f050f0), new op.u64(0x4030202, 0x7050305),
  new op.u64(0x87a9cece, 0x2ee0a9e0), new op.u64(0xac7d5656, 0xd1877d87),
  new op.u64(0xd519e7e7, 0xcc2b192b), new op.u64(0x7162b5b5, 0x13a662a6),
  new op.u64(0x9ae64d4d, 0x7c31e631), new op.u64(0xc39aecec, 0x59b59ab5),
  new op.u64(0x5458f8f, 0x40cf45cf), new op.u64(0x3e9d1f1f, 0xa3bc9dbc),
  new op.u64(0x9408989, 0x49c040c0), new op.u64(0xef87fafa, 0x68928792),
  new op.u64(0xc515efef, 0xd03f153f), new op.u64(0x7febb2b2, 0x9426eb26),
  new op.u64(0x7c98e8e, 0xce40c940), new op.u64(0xed0bfbfb, 0xe61d0b1d),
  new op.u64(0x82ec4141, 0x6e2fec2f), new op.u64(0x7d67b3b3, 0x1aa967a9),
  new op.u64(0xbefd5f5f, 0x431cfd1c), new op.u64(0x8aea4545, 0x6025ea25),
  new op.u64(0x46bf2323, 0xf9dabfda), new op.u64(0xa6f75353, 0x5102f702),
  new op.u64(0xd396e4e4, 0x45a196a1), new op.u64(0x2d5b9b9b, 0x76ed5bed),
  new op.u64(0xeac27575, 0x285dc25d), new op.u64(0xd91ce1e1, 0xc5241c24),
  new op.u64(0x7aae3d3d, 0xd4e9aee9), new op.u64(0x986a4c4c, 0xf2be6abe),
  new op.u64(0xd85a6c6c, 0x82ee5aee), new op.u64(0xfc417e7e, 0xbdc341c3),
  new op.u64(0xf102f5f5, 0xf3060206), new op.u64(0x1d4f8383, 0x52d14fd1),
  new op.u64(0xd05c6868, 0x8ce45ce4), new op.u64(0xa2f45151, 0x5607f407),
  new op.u64(0xb934d1d1, 0x8d5c345c), new op.u64(0xe908f9f9, 0xe1180818),
  new op.u64(0xdf93e2e2, 0x4cae93ae), new op.u64(0x4d73abab, 0x3e957395),
  new op.u64(0xc4536262, 0x97f553f5), new op.u64(0x543f2a2a, 0x6b413f41),
  new op.u64(0x100c0808, 0x1c140c14), new op.u64(0x31529595, 0x63f652f6),
  new op.u64(0x8c654646, 0xe9af65af), new op.u64(0x215e9d9d, 0x7fe25ee2),
  new op.u64(0x60283030, 0x48782878), new op.u64(0x6ea13737, 0xcff8a1f8),
  new op.u64(0x140f0a0a, 0x1b110f11), new op.u64(0x5eb52f2f, 0xebc4b5c4),
  new op.u64(0x1c090e0e, 0x151b091b), new op.u64(0x48362424, 0x7e5a365a),
  new op.u64(0x369b1b1b, 0xadb69bb6), new op.u64(0xa53ddfdf, 0x98473d47),
  new op.u64(0x8126cdcd, 0xa76a266a), new op.u64(0x9c694e4e, 0xf5bb69bb),
  new op.u64(0xfecd7f7f, 0x334ccd4c), new op.u64(0xcf9feaea, 0x50ba9fba),
  new op.u64(0x241b1212, 0x3f2d1b2d), new op.u64(0x3a9e1d1d, 0xa4b99eb9),
  new op.u64(0xb0745858, 0xc49c749c), new op.u64(0x682e3434, 0x46722e72),
  new op.u64(0x6c2d3636, 0x41772d77), new op.u64(0xa3b2dcdc, 0x11cdb2cd),
  new op.u64(0x73eeb4b4, 0x9d29ee29), new op.u64(0xb6fb5b5b, 0x4d16fb16),
  new op.u64(0x53f6a4a4, 0xa501f601), new op.u64(0xec4d7676, 0xa1d74dd7),
  new op.u64(0x7561b7b7, 0x14a361a3), new op.u64(0xface7d7d, 0x3449ce49),
  new op.u64(0xa47b5252, 0xdf8d7b8d), new op.u64(0xa13edddd, 0x9f423e42),
  new op.u64(0xbc715e5e, 0xcd937193), new op.u64(0x26971313, 0xb1a297a2),
  new op.u64(0x57f5a6a6, 0xa204f504), new op.u64(0x6968b9b9, 0x1b868b8),
  new op.u64(0x0, 0x0), new op.u64(0x992cc1c1, 0xb5742c74),
  new op.u64(0x80604040, 0xe0a060a0), new op.u64(0xdd1fe3e3, 0xc2211f21),
  new op.u64(0xf2c87979, 0x3a43c843), new op.u64(0x77edb6b6, 0x9a2ced2c),
  new op.u64(0xb3bed4d4, 0xdd9bed9), new op.u64(0x1468d8d, 0x47ca46ca),
  new op.u64(0xced96767, 0x1770d970), new op.u64(0xe44b7272, 0xafdd4bdd),
  new op.u64(0x33de9494, 0xed79de79), new op.u64(0x2bd49898, 0xff67d467),
  new op.u64(0x7be8b0b0, 0x9323e823), new op.u64(0x114a8585, 0x5bde4ade),
  new op.u64(0x6d6bbbbb, 0x6bd6bbd), new op.u64(0x912ac5c5, 0xbb7e2a7e),
  new op.u64(0x9ee54f4f, 0x7b34e534), new op.u64(0xc116eded, 0xd73a163a),
  new op.u64(0x17c58686, 0xd254c554), new op.u64(0x2fd79a9a, 0xf862d762),
  new op.u64(0xcc556666, 0x99ff55ff), new op.u64(0x22941111, 0xb6a794a7),
  new op.u64(0xfcf8a8a, 0xc04acf4a), new op.u64(0xc910e9e9, 0xd9301030),
  new op.u64(0x8060404, 0xe0a060a), new op.u64(0xe781fefe, 0x66988198),
  new op.u64(0x5bf0a0a0, 0xab0bf00b), new op.u64(0xf0447878, 0xb4cc44cc),
  new op.u64(0x4aba2525, 0xf0d5bad5), new op.u64(0x96e34b4b, 0x753ee33e),
  new op.u64(0x5ff3a2a2, 0xac0ef30e), new op.u64(0xbafe5d5d, 0x4419fe19),
  new op.u64(0x1bc08080, 0xdb5bc05b), new op.u64(0xa8a0505, 0x80858a85),
  new op.u64(0x7ead3f3f, 0xd3ecadec), new op.u64(0x42bc2121, 0xfedfbcdf),
  new op.u64(0xe0487070, 0xa8d848d8), new op.u64(0xf904f1f1, 0xfd0c040c),
  new op.u64(0xc6df6363, 0x197adf7a), new op.u64(0xeec17777, 0x2f58c158),
  new op.u64(0x4575afaf, 0x309f759f), new op.u64(0x84634242, 0xe7a563a5),
  new op.u64(0x40302020, 0x70503050), new op.u64(0xd11ae5e5, 0xcb2e1a2e),
  new op.u64(0xe10efdfd, 0xef120e12), new op.u64(0x656dbfbf, 0x8b76db7),
  new op.u64(0x194c8181, 0x55d44cd4), new op.u64(0x30141818, 0x243c143c),
  new op.u64(0x4c352626, 0x795f355f), new op.u64(0x9d2fc3c3, 0xb2712f71),
  new op.u64(0x67e1bebe, 0x8638e138), new op.u64(0x6aa23535, 0xc8fda2fd),
  new op.u64(0xbcc8888, 0xc74fcc4f), new op.u64(0x5c392e2e, 0x654b394b),
  new op.u64(0x3d579393, 0x6af957f9), new op.u64(0xaaf25555, 0x580df20d),
  new op.u64(0xe382fcfc, 0x619d829d), new op.u64(0xf4477a7a, 0xb3c947c9),
  new op.u64(0x8bacc8c8, 0x27efacef), new op.u64(0x6fe7baba, 0x8832e732),
  new op.u64(0x642b3232, 0x4f7d2b7d), new op.u64(0xd795e6e6, 0x42a495a4),
  new op.u64(0x9ba0c0c0, 0x3bfba0fb), new op.u64(0x32981919, 0xaab398b3),
  new op.u64(0x27d19e9e, 0xf668d168), new op.u64(0x5d7fa3a3, 0x22817f81),
  new op.u64(0x88664444, 0xeeaa66aa), new op.u64(0xa87e5454, 0xd6827e82),
  new op.u64(0x76ab3b3b, 0xdde6abe6), new op.u64(0x16830b0b, 0x959e839e),
  new op.u64(0x3ca8c8c, 0xc945ca45), new op.u64(0x9529c7c7, 0xbc7b297b),
  new op.u64(0xd6d36b6b, 0x56ed36e), new op.u64(0x503c2828, 0x6c443c44),
  new op.u64(0x5579a7a7, 0x2c8b798b), new op.u64(0x63e2bcbc, 0x813de23d),
  new op.u64(0x2c1d1616, 0x31271d27), new op.u64(0x4176adad, 0x379a769a),
  new op.u64(0xad3bdbdb, 0x964d3b4d), new op.u64(0xc8566464, 0x9efa56fa),
  new op.u64(0xe84e7474, 0xa6d24ed2), new op.u64(0x281e1414, 0x36221e22),
  new op.u64(0x3fdb9292, 0xe476db76), new op.u64(0x180a0c0c, 0x121e0a1e),
  new op.u64(0x906c4848, 0xfcb46cb4), new op.u64(0x6be4b8b8, 0x8f37e437),
  new op.u64(0x255d9f9f, 0x78e75de7), new op.u64(0x616ebdbd, 0xfb26eb2),
  new op.u64(0x86ef4343, 0x692aef2a), new op.u64(0x93a6c4c4, 0x35f1a6f1),
  new op.u64(0x72a83939, 0xdae3a8e3), new op.u64(0x62a43131, 0xc6f7a4f7),
  new op.u64(0xbd37d3d3, 0x8a593759), new op.u64(0xff8bf2f2, 0x74868b86),
  new op.u64(0xb132d5d5, 0x83563256), new op.u64(0xd438b8b, 0x4ec543c5),
  new op.u64(0xdc596e6e, 0x85eb59eb), new op.u64(0xafb7dada, 0x18c2b7c2),
  new op.u64(0x28c0101, 0x8e8f8c8f), new op.u64(0x7964b1b1, 0x1dac64ac),
  new op.u64(0x23d29c9c, 0xf16dd26d), new op.u64(0x92e04949, 0x723be03b),
  new op.u64(0xabb4d8d8, 0x1fc7b4c7), new op.u64(0x43faacac, 0xb915fa15),
  new op.u64(0xfd07f3f3, 0xfa090709), new op.u64(0x8525cfcf, 0xa06f256f),
  new op.u64(0x8fafcaca, 0x20eaafea), new op.u64(0xf38ef4f4, 0x7d898e89),
  new op.u64(0x8ee94747, 0x6720e920), new op.u64(0x20181010, 0x38281828),
  new op.u64(0xded56f6f, 0xb64d564), new op.u64(0xfb88f0f0, 0x73838883),
  new op.u64(0x946f4a4a, 0xfbb16fb1), new op.u64(0xb8725c5c, 0xca967296),
  new op.u64(0x70243838, 0x546c246c), new op.u64(0xaef15757, 0x5f08f108),
  new op.u64(0xe6c77373, 0x2152c752), new op.u64(0x35519797, 0x64f351f3),
  new op.u64(0x8d23cbcb, 0xae652365), new op.u64(0x597ca1a1, 0x25847c84),
  new op.u64(0xcb9ce8e8, 0x57bf9cbf), new op.u64(0x7c213e3e, 0x5d632163),
  new op.u64(0x37dd9696, 0xea7cdd7c), new op.u64(0xc2dc6161, 0x1e7fdc7f),
  new op.u64(0x1a860d0d, 0x9c918691), new op.u64(0x1e850f0f, 0x9b948594),
  new op.u64(0xdb90e0e0, 0x4bab90ab), new op.u64(0xf8427c7c, 0xbac642c6),
  new op.u64(0xe2c47171, 0x2657c457), new op.u64(0x83aacccc, 0x29e5aae5),
  new op.u64(0x3bd89090, 0xe373d873), new op.u64(0xc050606, 0x90f050f),
  new op.u64(0xf501f7f7, 0xf4030103), new op.u64(0x38121c1c, 0x2a361236),
  new op.u64(0x9fa3c2c2, 0x3cfea3fe), new op.u64(0xd45f6a6a, 0x8be15fe1),
  new op.u64(0x47f9aeae, 0xbe10f910), new op.u64(0xd2d06969, 0x26bd06b),
  new op.u64(0x2e911717, 0xbfa891a8), new op.u64(0x29589999, 0x71e858e8),
  new op.u64(0x74273a3a, 0x53692769), new op.u64(0x4eb92727, 0xf7d0b9d0),
  new op.u64(0xa938d9d9, 0x91483848), new op.u64(0xcd13ebeb, 0xde351335),
  new op.u64(0x56b32b2b, 0xe5ceb3ce), new op.u64(0x44332222, 0x77553355),
  new op.u64(0xbfbbd2d2, 0x4d6bbd6), new op.u64(0x4970a9a9, 0x39907090),
  new op.u64(0xe890707, 0x87808980), new op.u64(0x66a73333, 0xc1f2a7f2),
  new op.u64(0x5ab62d2d, 0xecc1b6c1), new op.u64(0x78223c3c, 0x5a662266),
  new op.u64(0x2a921515, 0xb8ad92ad), new op.u64(0x8920c9c9, 0xa9602060),
  new op.u64(0x15498787, 0x5cdb49db), new op.u64(0x4fffaaaa, 0xb01aff1a),
  new op.u64(0xa0785050, 0xd8887888), new op.u64(0x517aa5a5, 0x2b8e7a8e),
  new op.u64(0x68f0303, 0x898a8f8a), new op.u64(0xb2f85959, 0x4a13f813),
  new op.u64(0x12800909, 0x929b809b), new op.u64(0x34171a1a, 0x23391739),
  new op.u64(0xcada6565, 0x1075da75), new op.u64(0xb531d7d7, 0x84533153),
  new op.u64(0x13c68484, 0xd551c651), new op.u64(0xbbb8d0d0, 0x3d3b8d3),
  new op.u64(0x1fc38282, 0xdc5ec35e), new op.u64(0x52b02929, 0xe2cbb0cb),
  new op.u64(0xb4775a5a, 0xc3997799), new op.u64(0x3c111e1e, 0x2d331133),
  new op.u64(0xf6cb7b7b, 0x3d46cb46), new op.u64(0x4bfca8a8, 0xb71ffc1f),
  new op.u64(0xdad66d6d, 0xc61d661), new op.u64(0x583a2c2c, 0x624e3a4e)
]

var T4 = [
  new op.u64(0xf497a5c6, 0xc632f4a5), new op.u64(0x97eb84f8, 0xf86f9784),
  new op.u64(0xb0c799ee, 0xee5eb099), new op.u64(0x8cf78df6, 0xf67a8c8d),
  new op.u64(0x17e50dff, 0xffe8170d), new op.u64(0xdcb7bdd6, 0xd60adcbd),
  new op.u64(0xc8a7b1de, 0xde16c8b1), new op.u64(0xfc395491, 0x916dfc54),
  new op.u64(0xf0c05060, 0x6090f050), new op.u64(0x05040302, 0x02070503),
  new op.u64(0xe087a9ce, 0xce2ee0a9), new op.u64(0x87ac7d56, 0x56d1877d),
  new op.u64(0x2bd519e7, 0xe7cc2b19), new op.u64(0xa67162b5, 0xb513a662),
  new op.u64(0x319ae64d, 0x4d7c31e6), new op.u64(0xb5c39aec, 0xec59b59a),
  new op.u64(0xcf05458f, 0x8f40cf45), new op.u64(0xbc3e9d1f, 0x1fa3bc9d),
  new op.u64(0xc0094089, 0x8949c040), new op.u64(0x92ef87fa, 0xfa689287),
  new op.u64(0x3fc515ef, 0xefd03f15), new op.u64(0x267febb2, 0xb29426eb),
  new op.u64(0x4007c98e, 0x8ece40c9), new op.u64(0x1ded0bfb, 0xfbe61d0b),
  new op.u64(0x2f82ec41, 0x416e2fec), new op.u64(0xa97d67b3, 0xb31aa967),
  new op.u64(0x1cbefd5f, 0x5f431cfd), new op.u64(0x258aea45, 0x456025ea),
  new op.u64(0xda46bf23, 0x23f9dabf), new op.u64(0x02a6f753, 0x535102f7),
  new op.u64(0xa1d396e4, 0xe445a196), new op.u64(0xed2d5b9b, 0x9b76ed5b),
  new op.u64(0x5deac275, 0x75285dc2), new op.u64(0x24d91ce1, 0xe1c5241c),
  new op.u64(0xe97aae3d, 0x3dd4e9ae), new op.u64(0xbe986a4c, 0x4cf2be6a),
  new op.u64(0xeed85a6c, 0x6c82ee5a), new op.u64(0xc3fc417e, 0x7ebdc341),
  new op.u64(0x06f102f5, 0xf5f30602), new op.u64(0xd11d4f83, 0x8352d14f),
  new op.u64(0xe4d05c68, 0x688ce45c), new op.u64(0x07a2f451, 0x515607f4),
  new op.u64(0x5cb934d1, 0xd18d5c34), new op.u64(0x18e908f9, 0xf9e11808),
  new op.u64(0xaedf93e2, 0xe24cae93), new op.u64(0x954d73ab, 0xab3e9573),
  new op.u64(0xf5c45362, 0x6297f553), new op.u64(0x41543f2a, 0x2a6b413f),
  new op.u64(0x14100c08, 0x081c140c), new op.u64(0xf6315295, 0x9563f652),
  new op.u64(0xaf8c6546, 0x46e9af65), new op.u64(0xe2215e9d, 0x9d7fe25e),
  new op.u64(0x78602830, 0x30487828), new op.u64(0xf86ea137, 0x37cff8a1),
  new op.u64(0x11140f0a, 0x0a1b110f), new op.u64(0xc45eb52f, 0x2febc4b5),
  new op.u64(0x1b1c090e, 0x0e151b09), new op.u64(0x5a483624, 0x247e5a36),
  new op.u64(0xb6369b1b, 0x1badb69b), new op.u64(0x47a53ddf, 0xdf98473d),
  new op.u64(0x6a8126cd, 0xcda76a26), new op.u64(0xbb9c694e, 0x4ef5bb69),
  new op.u64(0x4cfecd7f, 0x7f334ccd), new op.u64(0xbacf9fea, 0xea50ba9f),
  new op.u64(0x2d241b12, 0x123f2d1b), new op.u64(0xb93a9e1d, 0x1da4b99e),
  new op.u64(0x9cb07458, 0x58c49c74), new op.u64(0x72682e34, 0x3446722e),
  new op.u64(0x776c2d36, 0x3641772d), new op.u64(0xcda3b2dc, 0xdc11cdb2),
  new op.u64(0x2973eeb4, 0xb49d29ee), new op.u64(0x16b6fb5b, 0x5b4d16fb),
  new op.u64(0x0153f6a4, 0xa4a501f6), new op.u64(0xd7ec4d76, 0x76a1d74d),
  new op.u64(0xa37561b7, 0xb714a361), new op.u64(0x49face7d, 0x7d3449ce),
  new op.u64(0x8da47b52, 0x52df8d7b), new op.u64(0x42a13edd, 0xdd9f423e),
  new op.u64(0x93bc715e, 0x5ecd9371), new op.u64(0xa2269713, 0x13b1a297),
  new op.u64(0x0457f5a6, 0xa6a204f5), new op.u64(0xb86968b9, 0xb901b868),
  new op.u64(0x00000000, 0x00000000), new op.u64(0x74992cc1, 0xc1b5742c),
  new op.u64(0xa0806040, 0x40e0a060), new op.u64(0x21dd1fe3, 0xe3c2211f),
  new op.u64(0x43f2c879, 0x793a43c8), new op.u64(0x2c77edb6, 0xb69a2ced),
  new op.u64(0xd9b3bed4, 0xd40dd9be), new op.u64(0xca01468d, 0x8d47ca46),
  new op.u64(0x70ced967, 0x671770d9), new op.u64(0xdde44b72, 0x72afdd4b),
  new op.u64(0x7933de94, 0x94ed79de), new op.u64(0x672bd498, 0x98ff67d4),
  new op.u64(0x237be8b0, 0xb09323e8), new op.u64(0xde114a85, 0x855bde4a),
  new op.u64(0xbd6d6bbb, 0xbb06bd6b), new op.u64(0x7e912ac5, 0xc5bb7e2a),
  new op.u64(0x349ee54f, 0x4f7b34e5), new op.u64(0x3ac116ed, 0xedd73a16),
  new op.u64(0x5417c586, 0x86d254c5), new op.u64(0x622fd79a, 0x9af862d7),
  new op.u64(0xffcc5566, 0x6699ff55), new op.u64(0xa7229411, 0x11b6a794),
  new op.u64(0x4a0fcf8a, 0x8ac04acf), new op.u64(0x30c910e9, 0xe9d93010),
  new op.u64(0x0a080604, 0x040e0a06), new op.u64(0x98e781fe, 0xfe669881),
  new op.u64(0x0b5bf0a0, 0xa0ab0bf0), new op.u64(0xccf04478, 0x78b4cc44),
  new op.u64(0xd54aba25, 0x25f0d5ba), new op.u64(0x3e96e34b, 0x4b753ee3),
  new op.u64(0x0e5ff3a2, 0xa2ac0ef3), new op.u64(0x19bafe5d, 0x5d4419fe),
  new op.u64(0x5b1bc080, 0x80db5bc0), new op.u64(0x850a8a05, 0x0580858a),
  new op.u64(0xec7ead3f, 0x3fd3ecad), new op.u64(0xdf42bc21, 0x21fedfbc),
  new op.u64(0xd8e04870, 0x70a8d848), new op.u64(0x0cf904f1, 0xf1fd0c04),
  new op.u64(0x7ac6df63, 0x63197adf), new op.u64(0x58eec177, 0x772f58c1),
  new op.u64(0x9f4575af, 0xaf309f75), new op.u64(0xa5846342, 0x42e7a563),
  new op.u64(0x50403020, 0x20705030), new op.u64(0x2ed11ae5, 0xe5cb2e1a),
  new op.u64(0x12e10efd, 0xfdef120e), new op.u64(0xb7656dbf, 0xbf08b76d),
  new op.u64(0xd4194c81, 0x8155d44c), new op.u64(0x3c301418, 0x18243c14),
  new op.u64(0x5f4c3526, 0x26795f35), new op.u64(0x719d2fc3, 0xc3b2712f),
  new op.u64(0x3867e1be, 0xbe8638e1), new op.u64(0xfd6aa235, 0x35c8fda2),
  new op.u64(0x4f0bcc88, 0x88c74fcc), new op.u64(0x4b5c392e, 0x2e654b39),
  new op.u64(0xf93d5793, 0x936af957), new op.u64(0x0daaf255, 0x55580df2),
  new op.u64(0x9de382fc, 0xfc619d82), new op.u64(0xc9f4477a, 0x7ab3c947),
  new op.u64(0xef8bacc8, 0xc827efac), new op.u64(0x326fe7ba, 0xba8832e7),
  new op.u64(0x7d642b32, 0x324f7d2b), new op.u64(0xa4d795e6, 0xe642a495),
  new op.u64(0xfb9ba0c0, 0xc03bfba0), new op.u64(0xb3329819, 0x19aab398),
  new op.u64(0x6827d19e, 0x9ef668d1), new op.u64(0x815d7fa3, 0xa322817f),
  new op.u64(0xaa886644, 0x44eeaa66), new op.u64(0x82a87e54, 0x54d6827e),
  new op.u64(0xe676ab3b, 0x3bdde6ab), new op.u64(0x9e16830b, 0x0b959e83),
  new op.u64(0x4503ca8c, 0x8cc945ca), new op.u64(0x7b9529c7, 0xc7bc7b29),
  new op.u64(0x6ed6d36b, 0x6b056ed3), new op.u64(0x44503c28, 0x286c443c),
  new op.u64(0x8b5579a7, 0xa72c8b79), new op.u64(0x3d63e2bc, 0xbc813de2),
  new op.u64(0x272c1d16, 0x1631271d), new op.u64(0x9a4176ad, 0xad379a76),
  new op.u64(0x4dad3bdb, 0xdb964d3b), new op.u64(0xfac85664, 0x649efa56),
  new op.u64(0xd2e84e74, 0x74a6d24e), new op.u64(0x22281e14, 0x1436221e),
  new op.u64(0x763fdb92, 0x92e476db), new op.u64(0x1e180a0c, 0x0c121e0a),
  new op.u64(0xb4906c48, 0x48fcb46c), new op.u64(0x376be4b8, 0xb88f37e4),
  new op.u64(0xe7255d9f, 0x9f78e75d), new op.u64(0xb2616ebd, 0xbd0fb26e),
  new op.u64(0x2a86ef43, 0x43692aef), new op.u64(0xf193a6c4, 0xc435f1a6),
  new op.u64(0xe372a839, 0x39dae3a8), new op.u64(0xf762a431, 0x31c6f7a4),
  new op.u64(0x59bd37d3, 0xd38a5937), new op.u64(0x86ff8bf2, 0xf274868b),
  new op.u64(0x56b132d5, 0xd5835632), new op.u64(0xc50d438b, 0x8b4ec543),
  new op.u64(0xebdc596e, 0x6e85eb59), new op.u64(0xc2afb7da, 0xda18c2b7),
  new op.u64(0x8f028c01, 0x018e8f8c), new op.u64(0xac7964b1, 0xb11dac64),
  new op.u64(0x6d23d29c, 0x9cf16dd2), new op.u64(0x3b92e049, 0x49723be0),
  new op.u64(0xc7abb4d8, 0xd81fc7b4), new op.u64(0x1543faac, 0xacb915fa),
  new op.u64(0x09fd07f3, 0xf3fa0907), new op.u64(0x6f8525cf, 0xcfa06f25),
  new op.u64(0xea8fafca, 0xca20eaaf), new op.u64(0x89f38ef4, 0xf47d898e),
  new op.u64(0x208ee947, 0x476720e9), new op.u64(0x28201810, 0x10382818),
  new op.u64(0x64ded56f, 0x6f0b64d5), new op.u64(0x83fb88f0, 0xf0738388),
  new op.u64(0xb1946f4a, 0x4afbb16f), new op.u64(0x96b8725c, 0x5cca9672),
  new op.u64(0x6c702438, 0x38546c24), new op.u64(0x08aef157, 0x575f08f1),
  new op.u64(0x52e6c773, 0x732152c7), new op.u64(0xf3355197, 0x9764f351),
  new op.u64(0x658d23cb, 0xcbae6523), new op.u64(0x84597ca1, 0xa125847c),
  new op.u64(0xbfcb9ce8, 0xe857bf9c), new op.u64(0x637c213e, 0x3e5d6321),
  new op.u64(0x7c37dd96, 0x96ea7cdd), new op.u64(0x7fc2dc61, 0x611e7fdc),
  new op.u64(0x911a860d, 0x0d9c9186), new op.u64(0x941e850f, 0x0f9b9485),
  new op.u64(0xabdb90e0, 0xe04bab90), new op.u64(0xc6f8427c, 0x7cbac642),
  new op.u64(0x57e2c471, 0x712657c4), new op.u64(0xe583aacc, 0xcc29e5aa),
  new op.u64(0x733bd890, 0x90e373d8), new op.u64(0x0f0c0506, 0x06090f05),
  new op.u64(0x03f501f7, 0xf7f40301), new op.u64(0x3638121c, 0x1c2a3612),
  new op.u64(0xfe9fa3c2, 0xc23cfea3), new op.u64(0xe1d45f6a, 0x6a8be15f),
  new op.u64(0x1047f9ae, 0xaebe10f9), new op.u64(0x6bd2d069, 0x69026bd0),
  new op.u64(0xa82e9117, 0x17bfa891), new op.u64(0xe8295899, 0x9971e858),
  new op.u64(0x6974273a, 0x3a536927), new op.u64(0xd04eb927, 0x27f7d0b9),
  new op.u64(0x48a938d9, 0xd9914838), new op.u64(0x35cd13eb, 0xebde3513),
  new op.u64(0xce56b32b, 0x2be5ceb3), new op.u64(0x55443322, 0x22775533),
  new op.u64(0xd6bfbbd2, 0xd204d6bb), new op.u64(0x904970a9, 0xa9399070),
  new op.u64(0x800e8907, 0x07878089), new op.u64(0xf266a733, 0x33c1f2a7),
  new op.u64(0xc15ab62d, 0x2decc1b6), new op.u64(0x6678223c, 0x3c5a6622),
  new op.u64(0xad2a9215, 0x15b8ad92), new op.u64(0x608920c9, 0xc9a96020),
  new op.u64(0xdb154987, 0x875cdb49), new op.u64(0x1a4fffaa, 0xaab01aff),
  new op.u64(0x88a07850, 0x50d88878), new op.u64(0x8e517aa5, 0xa52b8e7a),
  new op.u64(0x8a068f03, 0x03898a8f), new op.u64(0x13b2f859, 0x594a13f8),
  new op.u64(0x9b128009, 0x09929b80), new op.u64(0x3934171a, 0x1a233917),
  new op.u64(0x75cada65, 0x651075da), new op.u64(0x53b531d7, 0xd7845331),
  new op.u64(0x5113c684, 0x84d551c6), new op.u64(0xd3bbb8d0, 0xd003d3b8),
  new op.u64(0x5e1fc382, 0x82dc5ec3), new op.u64(0xcb52b029, 0x29e2cbb0),
  new op.u64(0x99b4775a, 0x5ac39977), new op.u64(0x333c111e, 0x1e2d3311),
  new op.u64(0x46f6cb7b, 0x7b3d46cb), new op.u64(0x1f4bfca8, 0xa8b71ffc),
  new op.u64(0x61dad66d, 0x6d0c61d6), new op.u64(0x4e583a2c, 0x2c624e3a)
];

var T5 = [
  new op.u64(0xa5f497a5, 0xc6c632f4), new op.u64(0x8497eb84, 0xf8f86f97),
  new op.u64(0x99b0c799, 0xeeee5eb0), new op.u64(0x8d8cf78d, 0xf6f67a8c),
  new op.u64(0xd17e50d, 0xffffe817), new op.u64(0xbddcb7bd, 0xd6d60adc),
  new op.u64(0xb1c8a7b1, 0xdede16c8), new op.u64(0x54fc3954, 0x91916dfc),
  new op.u64(0x50f0c050, 0x606090f0), new op.u64(0x3050403, 0x2020705),
  new op.u64(0xa9e087a9, 0xcece2ee0), new op.u64(0x7d87ac7d, 0x5656d187),
  new op.u64(0x192bd519, 0xe7e7cc2b), new op.u64(0x62a67162, 0xb5b513a6),
  new op.u64(0xe6319ae6, 0x4d4d7c31), new op.u64(0x9ab5c39a, 0xecec59b5),
  new op.u64(0x45cf0545, 0x8f8f40cf), new op.u64(0x9dbc3e9d, 0x1f1fa3bc),
  new op.u64(0x40c00940, 0x898949c0), new op.u64(0x8792ef87, 0xfafa6892),
  new op.u64(0x153fc515, 0xefefd03f), new op.u64(0xeb267feb, 0xb2b29426),
  new op.u64(0xc94007c9, 0x8e8ece40), new op.u64(0xb1ded0b, 0xfbfbe61d),
  new op.u64(0xec2f82ec, 0x41416e2f), new op.u64(0x67a97d67, 0xb3b31aa9),
  new op.u64(0xfd1cbefd, 0x5f5f431c), new op.u64(0xea258aea, 0x45456025),
  new op.u64(0xbfda46bf, 0x2323f9da), new op.u64(0xf702a6f7, 0x53535102),
  new op.u64(0x96a1d396, 0xe4e445a1), new op.u64(0x5bed2d5b, 0x9b9b76ed),
  new op.u64(0xc25deac2, 0x7575285d), new op.u64(0x1c24d91c, 0xe1e1c524),
  new op.u64(0xaee97aae, 0x3d3dd4e9), new op.u64(0x6abe986a, 0x4c4cf2be),
  new op.u64(0x5aeed85a, 0x6c6c82ee), new op.u64(0x41c3fc41, 0x7e7ebdc3),
  new op.u64(0x206f102, 0xf5f5f306), new op.u64(0x4fd11d4f, 0x838352d1),
  new op.u64(0x5ce4d05c, 0x68688ce4), new op.u64(0xf407a2f4, 0x51515607),
  new op.u64(0x345cb934, 0xd1d18d5c), new op.u64(0x818e908, 0xf9f9e118),
  new op.u64(0x93aedf93, 0xe2e24cae), new op.u64(0x73954d73, 0xabab3e95),
  new op.u64(0x53f5c453, 0x626297f5), new op.u64(0x3f41543f, 0x2a2a6b41),
  new op.u64(0xc14100c, 0x8081c14), new op.u64(0x52f63152, 0x959563f6),
  new op.u64(0x65af8c65, 0x4646e9af), new op.u64(0x5ee2215e, 0x9d9d7fe2),
  new op.u64(0x28786028, 0x30304878), new op.u64(0xa1f86ea1, 0x3737cff8),
  new op.u64(0xf11140f, 0xa0a1b11), new op.u64(0xb5c45eb5, 0x2f2febc4),
  new op.u64(0x91b1c09, 0xe0e151b), new op.u64(0x365a4836, 0x24247e5a),
  new op.u64(0x9bb6369b, 0x1b1badb6), new op.u64(0x3d47a53d, 0xdfdf9847),
  new op.u64(0x266a8126, 0xcdcda76a), new op.u64(0x69bb9c69, 0x4e4ef5bb),
  new op.u64(0xcd4cfecd, 0x7f7f334c), new op.u64(0x9fbacf9f, 0xeaea50ba),
  new op.u64(0x1b2d241b, 0x12123f2d), new op.u64(0x9eb93a9e, 0x1d1da4b9),
  new op.u64(0x749cb074, 0x5858c49c), new op.u64(0x2e72682e, 0x34344672),
  new op.u64(0x2d776c2d, 0x36364177), new op.u64(0xb2cda3b2, 0xdcdc11cd),
  new op.u64(0xee2973ee, 0xb4b49d29), new op.u64(0xfb16b6fb, 0x5b5b4d16),
  new op.u64(0xf60153f6, 0xa4a4a501), new op.u64(0x4dd7ec4d, 0x7676a1d7),
  new op.u64(0x61a37561, 0xb7b714a3), new op.u64(0xce49face, 0x7d7d3449),
  new op.u64(0x7b8da47b, 0x5252df8d), new op.u64(0x3e42a13e, 0xdddd9f42),
  new op.u64(0x7193bc71, 0x5e5ecd93), new op.u64(0x97a22697, 0x1313b1a2),
  new op.u64(0xf50457f5, 0xa6a6a204), new op.u64(0x68b86968, 0xb9b901b8),
  new op.u64(0x0, 0x0), new op.u64(0x2c74992c, 0xc1c1b574),
  new op.u64(0x60a08060, 0x4040e0a0), new op.u64(0x1f21dd1f, 0xe3e3c221),
  new op.u64(0xc843f2c8, 0x79793a43), new op.u64(0xed2c77ed, 0xb6b69a2c),
  new op.u64(0xbed9b3be, 0xd4d40dd9), new op.u64(0x46ca0146, 0x8d8d47ca),
  new op.u64(0xd970ced9, 0x67671770), new op.u64(0x4bdde44b, 0x7272afdd),
  new op.u64(0xde7933de, 0x9494ed79), new op.u64(0xd4672bd4, 0x9898ff67),
  new op.u64(0xe8237be8, 0xb0b09323), new op.u64(0x4ade114a, 0x85855bde),
  new op.u64(0x6bbd6d6b, 0xbbbb06bd), new op.u64(0x2a7e912a, 0xc5c5bb7e),
  new op.u64(0xe5349ee5, 0x4f4f7b34), new op.u64(0x163ac116, 0xededd73a),
  new op.u64(0xc55417c5, 0x8686d254), new op.u64(0xd7622fd7, 0x9a9af862),
  new op.u64(0x55ffcc55, 0x666699ff), new op.u64(0x94a72294, 0x1111b6a7),
  new op.u64(0xcf4a0fcf, 0x8a8ac04a), new op.u64(0x1030c910, 0xe9e9d930),
  new op.u64(0x60a0806, 0x4040e0a), new op.u64(0x8198e781, 0xfefe6698),
  new op.u64(0xf00b5bf0, 0xa0a0ab0b), new op.u64(0x44ccf044, 0x7878b4cc),
  new op.u64(0xbad54aba, 0x2525f0d5), new op.u64(0xe33e96e3, 0x4b4b753e),
  new op.u64(0xf30e5ff3, 0xa2a2ac0e), new op.u64(0xfe19bafe, 0x5d5d4419),
  new op.u64(0xc05b1bc0, 0x8080db5b), new op.u64(0x8a850a8a, 0x5058085),
  new op.u64(0xadec7ead, 0x3f3fd3ec), new op.u64(0xbcdf42bc, 0x2121fedf),
  new op.u64(0x48d8e048, 0x7070a8d8), new op.u64(0x40cf904, 0xf1f1fd0c),
  new op.u64(0xdf7ac6df, 0x6363197a), new op.u64(0xc158eec1, 0x77772f58),
  new op.u64(0x759f4575, 0xafaf309f), new op.u64(0x63a58463, 0x4242e7a5),
  new op.u64(0x30504030, 0x20207050), new op.u64(0x1a2ed11a, 0xe5e5cb2e),
  new op.u64(0xe12e10e, 0xfdfdef12), new op.u64(0x6db7656d, 0xbfbf08b7),
  new op.u64(0x4cd4194c, 0x818155d4), new op.u64(0x143c3014, 0x1818243c),
  new op.u64(0x355f4c35, 0x2626795f), new op.u64(0x2f719d2f, 0xc3c3b271),
  new op.u64(0xe13867e1, 0xbebe8638), new op.u64(0xa2fd6aa2, 0x3535c8fd),
  new op.u64(0xcc4f0bcc, 0x8888c74f), new op.u64(0x394b5c39, 0x2e2e654b),
  new op.u64(0x57f93d57, 0x93936af9), new op.u64(0xf20daaf2, 0x5555580d),
  new op.u64(0x829de382, 0xfcfc619d), new op.u64(0x47c9f447, 0x7a7ab3c9),
  new op.u64(0xacef8bac, 0xc8c827ef), new op.u64(0xe7326fe7, 0xbaba8832),
  new op.u64(0x2b7d642b, 0x32324f7d), new op.u64(0x95a4d795, 0xe6e642a4),
  new op.u64(0xa0fb9ba0, 0xc0c03bfb), new op.u64(0x98b33298, 0x1919aab3),
  new op.u64(0xd16827d1, 0x9e9ef668), new op.u64(0x7f815d7f, 0xa3a32281),
  new op.u64(0x66aa8866, 0x4444eeaa), new op.u64(0x7e82a87e, 0x5454d682),
  new op.u64(0xabe676ab, 0x3b3bdde6), new op.u64(0x839e1683, 0xb0b959e),
  new op.u64(0xca4503ca, 0x8c8cc945), new op.u64(0x297b9529, 0xc7c7bc7b),
  new op.u64(0xd36ed6d3, 0x6b6b056e), new op.u64(0x3c44503c, 0x28286c44),
  new op.u64(0x798b5579, 0xa7a72c8b), new op.u64(0xe23d63e2, 0xbcbc813d),
  new op.u64(0x1d272c1d, 0x16163127), new op.u64(0x769a4176, 0xadad379a),
  new op.u64(0x3b4dad3b, 0xdbdb964d), new op.u64(0x56fac856, 0x64649efa),
  new op.u64(0x4ed2e84e, 0x7474a6d2), new op.u64(0x1e22281e, 0x14143622),
  new op.u64(0xdb763fdb, 0x9292e476), new op.u64(0xa1e180a, 0xc0c121e),
  new op.u64(0x6cb4906c, 0x4848fcb4), new op.u64(0xe4376be4, 0xb8b88f37),
  new op.u64(0x5de7255d, 0x9f9f78e7), new op.u64(0x6eb2616e, 0xbdbd0fb2),
  new op.u64(0xef2a86ef, 0x4343692a), new op.u64(0xa6f193a6, 0xc4c435f1),
  new op.u64(0xa8e372a8, 0x3939dae3), new op.u64(0xa4f762a4, 0x3131c6f7),
  new op.u64(0x3759bd37, 0xd3d38a59), new op.u64(0x8b86ff8b, 0xf2f27486),
  new op.u64(0x3256b132, 0xd5d58356), new op.u64(0x43c50d43, 0x8b8b4ec5),
  new op.u64(0x59ebdc59, 0x6e6e85eb), new op.u64(0xb7c2afb7, 0xdada18c2),
  new op.u64(0x8c8f028c, 0x1018e8f), new op.u64(0x64ac7964, 0xb1b11dac),
  new op.u64(0xd26d23d2, 0x9c9cf16d), new op.u64(0xe03b92e0, 0x4949723b),
  new op.u64(0xb4c7abb4, 0xd8d81fc7), new op.u64(0xfa1543fa, 0xacacb915),
  new op.u64(0x709fd07, 0xf3f3fa09), new op.u64(0x256f8525, 0xcfcfa06f),
  new op.u64(0xafea8faf, 0xcaca20ea), new op.u64(0x8e89f38e, 0xf4f47d89),
  new op.u64(0xe9208ee9, 0x47476720), new op.u64(0x18282018, 0x10103828),
  new op.u64(0xd564ded5, 0x6f6f0b64), new op.u64(0x8883fb88, 0xf0f07383),
  new op.u64(0x6fb1946f, 0x4a4afbb1), new op.u64(0x7296b872, 0x5c5cca96),
  new op.u64(0x246c7024, 0x3838546c), new op.u64(0xf108aef1, 0x57575f08),
  new op.u64(0xc752e6c7, 0x73732152), new op.u64(0x51f33551, 0x979764f3),
  new op.u64(0x23658d23, 0xcbcbae65), new op.u64(0x7c84597c, 0xa1a12584),
  new op.u64(0x9cbfcb9c, 0xe8e857bf), new op.u64(0x21637c21, 0x3e3e5d63),
  new op.u64(0xdd7c37dd, 0x9696ea7c), new op.u64(0xdc7fc2dc, 0x61611e7f),
  new op.u64(0x86911a86, 0xd0d9c91), new op.u64(0x85941e85, 0xf0f9b94),
  new op.u64(0x90abdb90, 0xe0e04bab), new op.u64(0x42c6f842, 0x7c7cbac6),
  new op.u64(0xc457e2c4, 0x71712657), new op.u64(0xaae583aa, 0xcccc29e5),
  new op.u64(0xd8733bd8, 0x9090e373), new op.u64(0x50f0c05, 0x606090f),
  new op.u64(0x103f501, 0xf7f7f403), new op.u64(0x12363812, 0x1c1c2a36),
  new op.u64(0xa3fe9fa3, 0xc2c23cfe), new op.u64(0x5fe1d45f, 0x6a6a8be1),
  new op.u64(0xf91047f9, 0xaeaebe10), new op.u64(0xd06bd2d0, 0x6969026b),
  new op.u64(0x91a82e91, 0x1717bfa8), new op.u64(0x58e82958, 0x999971e8),
  new op.u64(0x27697427, 0x3a3a5369), new op.u64(0xb9d04eb9, 0x2727f7d0),
  new op.u64(0x3848a938, 0xd9d99148), new op.u64(0x1335cd13, 0xebebde35),
  new op.u64(0xb3ce56b3, 0x2b2be5ce), new op.u64(0x33554433, 0x22227755),
  new op.u64(0xbbd6bfbb, 0xd2d204d6), new op.u64(0x70904970, 0xa9a93990),
  new op.u64(0x89800e89, 0x7078780), new op.u64(0xa7f266a7, 0x3333c1f2),
  new op.u64(0xb6c15ab6, 0x2d2decc1), new op.u64(0x22667822, 0x3c3c5a66),
  new op.u64(0x92ad2a92, 0x1515b8ad), new op.u64(0x20608920, 0xc9c9a960),
  new op.u64(0x49db1549, 0x87875cdb), new op.u64(0xff1a4fff, 0xaaaab01a),
  new op.u64(0x7888a078, 0x5050d888), new op.u64(0x7a8e517a, 0xa5a52b8e),
  new op.u64(0x8f8a068f, 0x303898a), new op.u64(0xf813b2f8, 0x59594a13),
  new op.u64(0x809b1280, 0x909929b), new op.u64(0x17393417, 0x1a1a2339),
  new op.u64(0xda75cada, 0x65651075), new op.u64(0x3153b531, 0xd7d78453),
  new op.u64(0xc65113c6, 0x8484d551), new op.u64(0xb8d3bbb8, 0xd0d003d3),
  new op.u64(0xc35e1fc3, 0x8282dc5e), new op.u64(0xb0cb52b0, 0x2929e2cb),
  new op.u64(0x7799b477, 0x5a5ac399), new op.u64(0x11333c11, 0x1e1e2d33),
  new op.u64(0xcb46f6cb, 0x7b7b3d46), new op.u64(0xfc1f4bfc, 0xa8a8b71f),
  new op.u64(0xd661dad6, 0x6d6d0c61), new op.u64(0x3a4e583a, 0x2c2c624e)
];

var T6 = [
  new op.u64(0xf4a5f497, 0xa5c6c632), new op.u64(0x978497eb, 0x84f8f86f),
  new op.u64(0xb099b0c7, 0x99eeee5e), new op.u64(0x8c8d8cf7, 0x8df6f67a),
  new op.u64(0x170d17e5, 0xdffffe8), new op.u64(0xdcbddcb7, 0xbdd6d60a),
  new op.u64(0xc8b1c8a7, 0xb1dede16), new op.u64(0xfc54fc39, 0x5491916d),
  new op.u64(0xf050f0c0, 0x50606090), new op.u64(0x5030504, 0x3020207),
  new op.u64(0xe0a9e087, 0xa9cece2e), new op.u64(0x877d87ac, 0x7d5656d1),
  new op.u64(0x2b192bd5, 0x19e7e7cc), new op.u64(0xa662a671, 0x62b5b513),
  new op.u64(0x31e6319a, 0xe64d4d7c), new op.u64(0xb59ab5c3, 0x9aecec59),
  new op.u64(0xcf45cf05, 0x458f8f40), new op.u64(0xbc9dbc3e, 0x9d1f1fa3),
  new op.u64(0xc040c009, 0x40898949), new op.u64(0x928792ef, 0x87fafa68),
  new op.u64(0x3f153fc5, 0x15efefd0), new op.u64(0x26eb267f, 0xebb2b294),
  new op.u64(0x40c94007, 0xc98e8ece), new op.u64(0x1d0b1ded, 0xbfbfbe6),
  new op.u64(0x2fec2f82, 0xec41416e), new op.u64(0xa967a97d, 0x67b3b31a),
  new op.u64(0x1cfd1cbe, 0xfd5f5f43), new op.u64(0x25ea258a, 0xea454560),
  new op.u64(0xdabfda46, 0xbf2323f9), new op.u64(0x2f702a6, 0xf7535351),
  new op.u64(0xa196a1d3, 0x96e4e445), new op.u64(0xed5bed2d, 0x5b9b9b76),
  new op.u64(0x5dc25dea, 0xc2757528), new op.u64(0x241c24d9, 0x1ce1e1c5),
  new op.u64(0xe9aee97a, 0xae3d3dd4), new op.u64(0xbe6abe98, 0x6a4c4cf2),
  new op.u64(0xee5aeed8, 0x5a6c6c82), new op.u64(0xc341c3fc, 0x417e7ebd),
  new op.u64(0x60206f1, 0x2f5f5f3), new op.u64(0xd14fd11d, 0x4f838352),
  new op.u64(0xe45ce4d0, 0x5c68688c), new op.u64(0x7f407a2, 0xf4515156),
  new op.u64(0x5c345cb9, 0x34d1d18d), new op.u64(0x180818e9, 0x8f9f9e1),
  new op.u64(0xae93aedf, 0x93e2e24c), new op.u64(0x9573954d, 0x73abab3e),
  new op.u64(0xf553f5c4, 0x53626297), new op.u64(0x413f4154, 0x3f2a2a6b),
  new op.u64(0x140c1410, 0xc08081c), new op.u64(0xf652f631, 0x52959563),
  new op.u64(0xaf65af8c, 0x654646e9), new op.u64(0xe25ee221, 0x5e9d9d7f),
  new op.u64(0x78287860, 0x28303048), new op.u64(0xf8a1f86e, 0xa13737cf),
  new op.u64(0x110f1114, 0xf0a0a1b), new op.u64(0xc4b5c45e, 0xb52f2feb),
  new op.u64(0x1b091b1c, 0x90e0e15), new op.u64(0x5a365a48, 0x3624247e),
  new op.u64(0xb69bb636, 0x9b1b1bad), new op.u64(0x473d47a5, 0x3ddfdf98),
  new op.u64(0x6a266a81, 0x26cdcda7), new op.u64(0xbb69bb9c, 0x694e4ef5),
  new op.u64(0x4ccd4cfe, 0xcd7f7f33), new op.u64(0xba9fbacf, 0x9feaea50),
  new op.u64(0x2d1b2d24, 0x1b12123f), new op.u64(0xb99eb93a, 0x9e1d1da4),
  new op.u64(0x9c749cb0, 0x745858c4), new op.u64(0x722e7268, 0x2e343446),
  new op.u64(0x772d776c, 0x2d363641), new op.u64(0xcdb2cda3, 0xb2dcdc11),
  new op.u64(0x29ee2973, 0xeeb4b49d), new op.u64(0x16fb16b6, 0xfb5b5b4d),
  new op.u64(0x1f60153, 0xf6a4a4a5), new op.u64(0xd74dd7ec, 0x4d7676a1),
  new op.u64(0xa361a375, 0x61b7b714), new op.u64(0x49ce49fa, 0xce7d7d34),
  new op.u64(0x8d7b8da4, 0x7b5252df), new op.u64(0x423e42a1, 0x3edddd9f),
  new op.u64(0x937193bc, 0x715e5ecd), new op.u64(0xa297a226, 0x971313b1),
  new op.u64(0x4f50457, 0xf5a6a6a2), new op.u64(0xb868b869, 0x68b9b901),
  new op.u64(0x0, 0x0), new op.u64(0x742c7499, 0x2cc1c1b5),
  new op.u64(0xa060a080, 0x604040e0), new op.u64(0x211f21dd, 0x1fe3e3c2),
  new op.u64(0x43c843f2, 0xc879793a), new op.u64(0x2ced2c77, 0xedb6b69a),
  new op.u64(0xd9bed9b3, 0xbed4d40d), new op.u64(0xca46ca01, 0x468d8d47),
  new op.u64(0x70d970ce, 0xd9676717), new op.u64(0xdd4bdde4, 0x4b7272af),
  new op.u64(0x79de7933, 0xde9494ed), new op.u64(0x67d4672b, 0xd49898ff),
  new op.u64(0x23e8237b, 0xe8b0b093), new op.u64(0xde4ade11, 0x4a85855b),
  new op.u64(0xbd6bbd6d, 0x6bbbbb06), new op.u64(0x7e2a7e91, 0x2ac5c5bb),
  new op.u64(0x34e5349e, 0xe54f4f7b), new op.u64(0x3a163ac1, 0x16ededd7),
  new op.u64(0x54c55417, 0xc58686d2), new op.u64(0x62d7622f, 0xd79a9af8),
  new op.u64(0xff55ffcc, 0x55666699), new op.u64(0xa794a722, 0x941111b6),
  new op.u64(0x4acf4a0f, 0xcf8a8ac0), new op.u64(0x301030c9, 0x10e9e9d9),
  new op.u64(0xa060a08, 0x604040e), new op.u64(0x988198e7, 0x81fefe66),
  new op.u64(0xbf00b5b, 0xf0a0a0ab), new op.u64(0xcc44ccf0, 0x447878b4),
  new op.u64(0xd5bad54a, 0xba2525f0), new op.u64(0x3ee33e96, 0xe34b4b75),
  new op.u64(0xef30e5f, 0xf3a2a2ac), new op.u64(0x19fe19ba, 0xfe5d5d44),
  new op.u64(0x5bc05b1b, 0xc08080db), new op.u64(0x858a850a, 0x8a050580),
  new op.u64(0xecadec7e, 0xad3f3fd3), new op.u64(0xdfbcdf42, 0xbc2121fe),
  new op.u64(0xd848d8e0, 0x487070a8), new op.u64(0xc040cf9, 0x4f1f1fd),
  new op.u64(0x7adf7ac6, 0xdf636319), new op.u64(0x58c158ee, 0xc177772f),
  new op.u64(0x9f759f45, 0x75afaf30), new op.u64(0xa563a584, 0x634242e7),
  new op.u64(0x50305040, 0x30202070), new op.u64(0x2e1a2ed1, 0x1ae5e5cb),
  new op.u64(0x120e12e1, 0xefdfdef), new op.u64(0xb76db765, 0x6dbfbf08),
  new op.u64(0xd44cd419, 0x4c818155), new op.u64(0x3c143c30, 0x14181824),
  new op.u64(0x5f355f4c, 0x35262679), new op.u64(0x712f719d, 0x2fc3c3b2),
  new op.u64(0x38e13867, 0xe1bebe86), new op.u64(0xfda2fd6a, 0xa23535c8),
  new op.u64(0x4fcc4f0b, 0xcc8888c7), new op.u64(0x4b394b5c, 0x392e2e65),
  new op.u64(0xf957f93d, 0x5793936a), new op.u64(0xdf20daa, 0xf2555558),
  new op.u64(0x9d829de3, 0x82fcfc61), new op.u64(0xc947c9f4, 0x477a7ab3),
  new op.u64(0xefacef8b, 0xacc8c827), new op.u64(0x32e7326f, 0xe7baba88),
  new op.u64(0x7d2b7d64, 0x2b32324f), new op.u64(0xa495a4d7, 0x95e6e642),
  new op.u64(0xfba0fb9b, 0xa0c0c03b), new op.u64(0xb398b332, 0x981919aa),
  new op.u64(0x68d16827, 0xd19e9ef6), new op.u64(0x817f815d, 0x7fa3a322),
  new op.u64(0xaa66aa88, 0x664444ee), new op.u64(0x827e82a8, 0x7e5454d6),
  new op.u64(0xe6abe676, 0xab3b3bdd), new op.u64(0x9e839e16, 0x830b0b95),
  new op.u64(0x45ca4503, 0xca8c8cc9), new op.u64(0x7b297b95, 0x29c7c7bc),
  new op.u64(0x6ed36ed6, 0xd36b6b05), new op.u64(0x443c4450, 0x3c28286c),
  new op.u64(0x8b798b55, 0x79a7a72c), new op.u64(0x3de23d63, 0xe2bcbc81),
  new op.u64(0x271d272c, 0x1d161631), new op.u64(0x9a769a41, 0x76adad37),
  new op.u64(0x4d3b4dad, 0x3bdbdb96), new op.u64(0xfa56fac8, 0x5664649e),
  new op.u64(0xd24ed2e8, 0x4e7474a6), new op.u64(0x221e2228, 0x1e141436),
  new op.u64(0x76db763f, 0xdb9292e4), new op.u64(0x1e0a1e18, 0xa0c0c12),
  new op.u64(0xb46cb490, 0x6c4848fc), new op.u64(0x37e4376b, 0xe4b8b88f),
  new op.u64(0xe75de725, 0x5d9f9f78), new op.u64(0xb26eb261, 0x6ebdbd0f),
  new op.u64(0x2aef2a86, 0xef434369), new op.u64(0xf1a6f193, 0xa6c4c435),
  new op.u64(0xe3a8e372, 0xa83939da), new op.u64(0xf7a4f762, 0xa43131c6),
  new op.u64(0x593759bd, 0x37d3d38a), new op.u64(0x868b86ff, 0x8bf2f274),
  new op.u64(0x563256b1, 0x32d5d583), new op.u64(0xc543c50d, 0x438b8b4e),
  new op.u64(0xeb59ebdc, 0x596e6e85), new op.u64(0xc2b7c2af, 0xb7dada18),
  new op.u64(0x8f8c8f02, 0x8c01018e), new op.u64(0xac64ac79, 0x64b1b11d),
  new op.u64(0x6dd26d23, 0xd29c9cf1), new op.u64(0x3be03b92, 0xe0494972),
  new op.u64(0xc7b4c7ab, 0xb4d8d81f), new op.u64(0x15fa1543, 0xfaacacb9),
  new op.u64(0x90709fd, 0x7f3f3fa), new op.u64(0x6f256f85, 0x25cfcfa0),
  new op.u64(0xeaafea8f, 0xafcaca20), new op.u64(0x898e89f3, 0x8ef4f47d),
  new op.u64(0x20e9208e, 0xe9474767), new op.u64(0x28182820, 0x18101038),
  new op.u64(0x64d564de, 0xd56f6f0b), new op.u64(0x838883fb, 0x88f0f073),
  new op.u64(0xb16fb194, 0x6f4a4afb), new op.u64(0x967296b8, 0x725c5cca),
  new op.u64(0x6c246c70, 0x24383854), new op.u64(0x8f108ae, 0xf157575f),
  new op.u64(0x52c752e6, 0xc7737321), new op.u64(0xf351f335, 0x51979764),
  new op.u64(0x6523658d, 0x23cbcbae), new op.u64(0x847c8459, 0x7ca1a125),
  new op.u64(0xbf9cbfcb, 0x9ce8e857), new op.u64(0x6321637c, 0x213e3e5d),
  new op.u64(0x7cdd7c37, 0xdd9696ea), new op.u64(0x7fdc7fc2, 0xdc61611e),
  new op.u64(0x9186911a, 0x860d0d9c), new op.u64(0x9485941e, 0x850f0f9b),
  new op.u64(0xab90abdb, 0x90e0e04b), new op.u64(0xc642c6f8, 0x427c7cba),
  new op.u64(0x57c457e2, 0xc4717126), new op.u64(0xe5aae583, 0xaacccc29),
  new op.u64(0x73d8733b, 0xd89090e3), new op.u64(0xf050f0c, 0x5060609),
  new op.u64(0x30103f5, 0x1f7f7f4), new op.u64(0x36123638, 0x121c1c2a),
  new op.u64(0xfea3fe9f, 0xa3c2c23c), new op.u64(0xe15fe1d4, 0x5f6a6a8b),
  new op.u64(0x10f91047, 0xf9aeaebe), new op.u64(0x6bd06bd2, 0xd0696902),
  new op.u64(0xa891a82e, 0x911717bf), new op.u64(0xe858e829, 0x58999971),
  new op.u64(0x69276974, 0x273a3a53), new op.u64(0xd0b9d04e, 0xb92727f7),
  new op.u64(0x483848a9, 0x38d9d991), new op.u64(0x351335cd, 0x13ebebde),
  new op.u64(0xceb3ce56, 0xb32b2be5), new op.u64(0x55335544, 0x33222277),
  new op.u64(0xd6bbd6bf, 0xbbd2d204), new op.u64(0x90709049, 0x70a9a939),
  new op.u64(0x8089800e, 0x89070787), new op.u64(0xf2a7f266, 0xa73333c1),
  new op.u64(0xc1b6c15a, 0xb62d2dec), new op.u64(0x66226678, 0x223c3c5a),
  new op.u64(0xad92ad2a, 0x921515b8), new op.u64(0x60206089, 0x20c9c9a9),
  new op.u64(0xdb49db15, 0x4987875c), new op.u64(0x1aff1a4f, 0xffaaaab0),
  new op.u64(0x887888a0, 0x785050d8), new op.u64(0x8e7a8e51, 0x7aa5a52b),
  new op.u64(0x8a8f8a06, 0x8f030389), new op.u64(0x13f813b2, 0xf859594a),
  new op.u64(0x9b809b12, 0x80090992), new op.u64(0x39173934, 0x171a1a23),
  new op.u64(0x75da75ca, 0xda656510), new op.u64(0x533153b5, 0x31d7d784),
  new op.u64(0x51c65113, 0xc68484d5), new op.u64(0xd3b8d3bb, 0xb8d0d003),
  new op.u64(0x5ec35e1f, 0xc38282dc), new op.u64(0xcbb0cb52, 0xb02929e2),
  new op.u64(0x997799b4, 0x775a5ac3), new op.u64(0x3311333c, 0x111e1e2d),
  new op.u64(0x46cb46f6, 0xcb7b7b3d), new op.u64(0x1ffc1f4b, 0xfca8a8b7),
  new op.u64(0x61d661da, 0xd66d6d0c), new op.u64(0x4e3a4e58, 0x3a2c2c62)
];

var T7 = [
  new op.u64(0x32f4a5f4, 0x97a5c6c6), new op.u64(0x6f978497, 0xeb84f8f8),
  new op.u64(0x5eb099b0, 0xc799eeee), new op.u64(0x7a8c8d8c, 0xf78df6f6),
  new op.u64(0xe8170d17, 0xe50dffff), new op.u64(0xadcbddc, 0xb7bdd6d6),
  new op.u64(0x16c8b1c8, 0xa7b1dede), new op.u64(0x6dfc54fc, 0x39549191),
  new op.u64(0x90f050f0, 0xc0506060), new op.u64(0x7050305, 0x4030202),
  new op.u64(0x2ee0a9e0, 0x87a9cece), new op.u64(0xd1877d87, 0xac7d5656),
  new op.u64(0xcc2b192b, 0xd519e7e7), new op.u64(0x13a662a6, 0x7162b5b5),
  new op.u64(0x7c31e631, 0x9ae64d4d), new op.u64(0x59b59ab5, 0xc39aecec),
  new op.u64(0x40cf45cf, 0x5458f8f), new op.u64(0xa3bc9dbc, 0x3e9d1f1f),
  new op.u64(0x49c040c0, 0x9408989), new op.u64(0x68928792, 0xef87fafa),
  new op.u64(0xd03f153f, 0xc515efef), new op.u64(0x9426eb26, 0x7febb2b2),
  new op.u64(0xce40c940, 0x7c98e8e), new op.u64(0xe61d0b1d, 0xed0bfbfb),
  new op.u64(0x6e2fec2f, 0x82ec4141), new op.u64(0x1aa967a9, 0x7d67b3b3),
  new op.u64(0x431cfd1c, 0xbefd5f5f), new op.u64(0x6025ea25, 0x8aea4545),
  new op.u64(0xf9dabfda, 0x46bf2323), new op.u64(0x5102f702, 0xa6f75353),
  new op.u64(0x45a196a1, 0xd396e4e4), new op.u64(0x76ed5bed, 0x2d5b9b9b),
  new op.u64(0x285dc25d, 0xeac27575), new op.u64(0xc5241c24, 0xd91ce1e1),
  new op.u64(0xd4e9aee9, 0x7aae3d3d), new op.u64(0xf2be6abe, 0x986a4c4c),
  new op.u64(0x82ee5aee, 0xd85a6c6c), new op.u64(0xbdc341c3, 0xfc417e7e),
  new op.u64(0xf3060206, 0xf102f5f5), new op.u64(0x52d14fd1, 0x1d4f8383),
  new op.u64(0x8ce45ce4, 0xd05c6868), new op.u64(0x5607f407, 0xa2f45151),
  new op.u64(0x8d5c345c, 0xb934d1d1), new op.u64(0xe1180818, 0xe908f9f9),
  new op.u64(0x4cae93ae, 0xdf93e2e2), new op.u64(0x3e957395, 0x4d73abab),
  new op.u64(0x97f553f5, 0xc4536262), new op.u64(0x6b413f41, 0x543f2a2a),
  new op.u64(0x1c140c14, 0x100c0808), new op.u64(0x63f652f6, 0x31529595),
  new op.u64(0xe9af65af, 0x8c654646), new op.u64(0x7fe25ee2, 0x215e9d9d),
  new op.u64(0x48782878, 0x60283030), new op.u64(0xcff8a1f8, 0x6ea13737),
  new op.u64(0x1b110f11, 0x140f0a0a), new op.u64(0xebc4b5c4, 0x5eb52f2f),
  new op.u64(0x151b091b, 0x1c090e0e), new op.u64(0x7e5a365a, 0x48362424),
  new op.u64(0xadb69bb6, 0x369b1b1b), new op.u64(0x98473d47, 0xa53ddfdf),
  new op.u64(0xa76a266a, 0x8126cdcd), new op.u64(0xf5bb69bb, 0x9c694e4e),
  new op.u64(0x334ccd4c, 0xfecd7f7f), new op.u64(0x50ba9fba, 0xcf9feaea),
  new op.u64(0x3f2d1b2d, 0x241b1212), new op.u64(0xa4b99eb9, 0x3a9e1d1d),
  new op.u64(0xc49c749c, 0xb0745858), new op.u64(0x46722e72, 0x682e3434),
  new op.u64(0x41772d77, 0x6c2d3636), new op.u64(0x11cdb2cd, 0xa3b2dcdc),
  new op.u64(0x9d29ee29, 0x73eeb4b4), new op.u64(0x4d16fb16, 0xb6fb5b5b),
  new op.u64(0xa501f601, 0x53f6a4a4), new op.u64(0xa1d74dd7, 0xec4d7676),
  new op.u64(0x14a361a3, 0x7561b7b7), new op.u64(0x3449ce49, 0xface7d7d),
  new op.u64(0xdf8d7b8d, 0xa47b5252), new op.u64(0x9f423e42, 0xa13edddd),
  new op.u64(0xcd937193, 0xbc715e5e), new op.u64(0xb1a297a2, 0x26971313),
  new op.u64(0xa204f504, 0x57f5a6a6), new op.u64(0x1b868b8, 0x6968b9b9),
  new op.u64(0x0, 0x0), new op.u64(0xb5742c74, 0x992cc1c1),
  new op.u64(0xe0a060a0, 0x80604040), new op.u64(0xc2211f21, 0xdd1fe3e3),
  new op.u64(0x3a43c843, 0xf2c87979), new op.u64(0x9a2ced2c, 0x77edb6b6),
  new op.u64(0xdd9bed9, 0xb3bed4d4), new op.u64(0x47ca46ca, 0x1468d8d),
  new op.u64(0x1770d970, 0xced96767), new op.u64(0xafdd4bdd, 0xe44b7272),
  new op.u64(0xed79de79, 0x33de9494), new op.u64(0xff67d467, 0x2bd49898),
  new op.u64(0x9323e823, 0x7be8b0b0), new op.u64(0x5bde4ade, 0x114a8585),
  new op.u64(0x6bd6bbd, 0x6d6bbbbb), new op.u64(0xbb7e2a7e, 0x912ac5c5),
  new op.u64(0x7b34e534, 0x9ee54f4f), new op.u64(0xd73a163a, 0xc116eded),
  new op.u64(0xd254c554, 0x17c58686), new op.u64(0xf862d762, 0x2fd79a9a),
  new op.u64(0x99ff55ff, 0xcc556666), new op.u64(0xb6a794a7, 0x22941111),
  new op.u64(0xc04acf4a, 0xfcf8a8a), new op.u64(0xd9301030, 0xc910e9e9),
  new op.u64(0xe0a060a, 0x8060404), new op.u64(0x66988198, 0xe781fefe),
  new op.u64(0xab0bf00b, 0x5bf0a0a0), new op.u64(0xb4cc44cc, 0xf0447878),
  new op.u64(0xf0d5bad5, 0x4aba2525), new op.u64(0x753ee33e, 0x96e34b4b),
  new op.u64(0xac0ef30e, 0x5ff3a2a2), new op.u64(0x4419fe19, 0xbafe5d5d),
  new op.u64(0xdb5bc05b, 0x1bc08080), new op.u64(0x80858a85, 0xa8a0505),
  new op.u64(0xd3ecadec, 0x7ead3f3f), new op.u64(0xfedfbcdf, 0x42bc2121),
  new op.u64(0xa8d848d8, 0xe0487070), new op.u64(0xfd0c040c, 0xf904f1f1),
  new op.u64(0x197adf7a, 0xc6df6363), new op.u64(0x2f58c158, 0xeec17777),
  new op.u64(0x309f759f, 0x4575afaf), new op.u64(0xe7a563a5, 0x84634242),
  new op.u64(0x70503050, 0x40302020), new op.u64(0xcb2e1a2e, 0xd11ae5e5),
  new op.u64(0xef120e12, 0xe10efdfd), new op.u64(0x8b76db7, 0x656dbfbf),
  new op.u64(0x55d44cd4, 0x194c8181), new op.u64(0x243c143c, 0x30141818),
  new op.u64(0x795f355f, 0x4c352626), new op.u64(0xb2712f71, 0x9d2fc3c3),
  new op.u64(0x8638e138, 0x67e1bebe), new op.u64(0xc8fda2fd, 0x6aa23535),
  new op.u64(0xc74fcc4f, 0xbcc8888), new op.u64(0x654b394b, 0x5c392e2e),
  new op.u64(0x6af957f9, 0x3d579393), new op.u64(0x580df20d, 0xaaf25555),
  new op.u64(0x619d829d, 0xe382fcfc), new op.u64(0xb3c947c9, 0xf4477a7a),
  new op.u64(0x27efacef, 0x8bacc8c8), new op.u64(0x8832e732, 0x6fe7baba),
  new op.u64(0x4f7d2b7d, 0x642b3232), new op.u64(0x42a495a4, 0xd795e6e6),
  new op.u64(0x3bfba0fb, 0x9ba0c0c0), new op.u64(0xaab398b3, 0x32981919),
  new op.u64(0xf668d168, 0x27d19e9e), new op.u64(0x22817f81, 0x5d7fa3a3),
  new op.u64(0xeeaa66aa, 0x88664444), new op.u64(0xd6827e82, 0xa87e5454),
  new op.u64(0xdde6abe6, 0x76ab3b3b), new op.u64(0x959e839e, 0x16830b0b),
  new op.u64(0xc945ca45, 0x3ca8c8c), new op.u64(0xbc7b297b, 0x9529c7c7),
  new op.u64(0x56ed36e, 0xd6d36b6b), new op.u64(0x6c443c44, 0x503c2828),
  new op.u64(0x2c8b798b, 0x5579a7a7), new op.u64(0x813de23d, 0x63e2bcbc),
  new op.u64(0x31271d27, 0x2c1d1616), new op.u64(0x379a769a, 0x4176adad),
  new op.u64(0x964d3b4d, 0xad3bdbdb), new op.u64(0x9efa56fa, 0xc8566464),
  new op.u64(0xa6d24ed2, 0xe84e7474), new op.u64(0x36221e22, 0x281e1414),
  new op.u64(0xe476db76, 0x3fdb9292), new op.u64(0x121e0a1e, 0x180a0c0c),
  new op.u64(0xfcb46cb4, 0x906c4848), new op.u64(0x8f37e437, 0x6be4b8b8),
  new op.u64(0x78e75de7, 0x255d9f9f), new op.u64(0xfb26eb2, 0x616ebdbd),
  new op.u64(0x692aef2a, 0x86ef4343), new op.u64(0x35f1a6f1, 0x93a6c4c4),
  new op.u64(0xdae3a8e3, 0x72a83939), new op.u64(0xc6f7a4f7, 0x62a43131),
  new op.u64(0x8a593759, 0xbd37d3d3), new op.u64(0x74868b86, 0xff8bf2f2),
  new op.u64(0x83563256, 0xb132d5d5), new op.u64(0x4ec543c5, 0xd438b8b),
  new op.u64(0x85eb59eb, 0xdc596e6e), new op.u64(0x18c2b7c2, 0xafb7dada),
  new op.u64(0x8e8f8c8f, 0x28c0101), new op.u64(0x1dac64ac, 0x7964b1b1),
  new op.u64(0xf16dd26d, 0x23d29c9c), new op.u64(0x723be03b, 0x92e04949),
  new op.u64(0x1fc7b4c7, 0xabb4d8d8), new op.u64(0xb915fa15, 0x43faacac),
  new op.u64(0xfa090709, 0xfd07f3f3), new op.u64(0xa06f256f, 0x8525cfcf),
  new op.u64(0x20eaafea, 0x8fafcaca), new op.u64(0x7d898e89, 0xf38ef4f4),
  new op.u64(0x6720e920, 0x8ee94747), new op.u64(0x38281828, 0x20181010),
  new op.u64(0xb64d564, 0xded56f6f), new op.u64(0x73838883, 0xfb88f0f0),
  new op.u64(0xfbb16fb1, 0x946f4a4a), new op.u64(0xca967296, 0xb8725c5c),
  new op.u64(0x546c246c, 0x70243838), new op.u64(0x5f08f108, 0xaef15757),
  new op.u64(0x2152c752, 0xe6c77373), new op.u64(0x64f351f3, 0x35519797),
  new op.u64(0xae652365, 0x8d23cbcb), new op.u64(0x25847c84, 0x597ca1a1),
  new op.u64(0x57bf9cbf, 0xcb9ce8e8), new op.u64(0x5d632163, 0x7c213e3e),
  new op.u64(0xea7cdd7c, 0x37dd9696), new op.u64(0x1e7fdc7f, 0xc2dc6161),
  new op.u64(0x9c918691, 0x1a860d0d), new op.u64(0x9b948594, 0x1e850f0f),
  new op.u64(0x4bab90ab, 0xdb90e0e0), new op.u64(0xbac642c6, 0xf8427c7c),
  new op.u64(0x2657c457, 0xe2c47171), new op.u64(0x29e5aae5, 0x83aacccc),
  new op.u64(0xe373d873, 0x3bd89090), new op.u64(0x90f050f, 0xc050606),
  new op.u64(0xf4030103, 0xf501f7f7), new op.u64(0x2a361236, 0x38121c1c),
  new op.u64(0x3cfea3fe, 0x9fa3c2c2), new op.u64(0x8be15fe1, 0xd45f6a6a),
  new op.u64(0xbe10f910, 0x47f9aeae), new op.u64(0x26bd06b, 0xd2d06969),
  new op.u64(0xbfa891a8, 0x2e911717), new op.u64(0x71e858e8, 0x29589999),
  new op.u64(0x53692769, 0x74273a3a), new op.u64(0xf7d0b9d0, 0x4eb92727),
  new op.u64(0x91483848, 0xa938d9d9), new op.u64(0xde351335, 0xcd13ebeb),
  new op.u64(0xe5ceb3ce, 0x56b32b2b), new op.u64(0x77553355, 0x44332222),
  new op.u64(0x4d6bbd6, 0xbfbbd2d2), new op.u64(0x39907090, 0x4970a9a9),
  new op.u64(0x87808980, 0xe890707), new op.u64(0xc1f2a7f2, 0x66a73333),
  new op.u64(0xecc1b6c1, 0x5ab62d2d), new op.u64(0x5a662266, 0x78223c3c),
  new op.u64(0xb8ad92ad, 0x2a921515), new op.u64(0xa9602060, 0x8920c9c9),
  new op.u64(0x5cdb49db, 0x15498787), new op.u64(0xb01aff1a, 0x4fffaaaa),
  new op.u64(0xd8887888, 0xa0785050), new op.u64(0x2b8e7a8e, 0x517aa5a5),
  new op.u64(0x898a8f8a, 0x68f0303), new op.u64(0x4a13f813, 0xb2f85959),
  new op.u64(0x929b809b, 0x12800909), new op.u64(0x23391739, 0x34171a1a),
  new op.u64(0x1075da75, 0xcada6565), new op.u64(0x84533153, 0xb531d7d7),
  new op.u64(0xd551c651, 0x13c68484), new op.u64(0x3d3b8d3, 0xbbb8d0d0),
  new op.u64(0xdc5ec35e, 0x1fc38282), new op.u64(0xe2cbb0cb, 0x52b02929),
  new op.u64(0xc3997799, 0xb4775a5a), new op.u64(0x2d331133, 0x3c111e1e),
  new op.u64(0x3d46cb46, 0xf6cb7b7b), new op.u64(0xb71ffc1f, 0x4bfca8a8),
  new op.u64(0xc61d661, 0xdad66d6d), new op.u64(0x624e3a4e, 0x583a2c2c)
];

var B64 = function(n, x) {
  return x.shiftRight(((7 - n) * 8)).lo & 0xFF;
}

var j64 = [new op.u64(0, 0), new op.u64(0, 0x10), new op.u64(0, 0x20), new op.u64(0, 0x30), new op.u64(0, 0x40), new op.u64(0, 0x50), new op.u64(0, 0x60),
  new op.u64(0, 0x70), new op.u64(0, 0x80), new op.u64(0, 0x90), new op.u64(0, 0xA0), new op.u64(0, 0xB0), new op.u64(0, 0xC0),
  new op.u64(0, 0xD0), new op.u64(0, 0xE0), new op.u64(0, 0xF0)
];

var nj64 = [new op.u64(0xFFFFFFFF, 0xFFFFFFFF), new op.u64(0xFFFFFFFF, 0xFFFFFFEF), new op.u64(0xFFFFFFFF, 0xFFFFFFDF), new op.u64(0xFFFFFFFF, 0xFFFFFFCF), new op.u64(0xFFFFFFFF, 0xFFFFFFBF), new op.u64(0xFFFFFFFF, 0xFFFFFFAF), new op.u64(0xFFFFFFFF, 0xFFFFFF9F),
  new op.u64(0xFFFFFFFF, 0xFFFFFF8F), new op.u64(0xFFFFFFFF, 0xFFFFFF7F), new op.u64(0xFFFFFFFF, 0xFFFFFF6F), new op.u64(0xFFFFFFFF, 0xFFFFFF5F), new op.u64(0xFFFFFFFF, 0xFFFFFF4F), new op.u64(0xFFFFFFFF, 0xFFFFFF3F),
  new op.u64(0xFFFFFFFF, 0xFFFFFF2F), new op.u64(0xFFFFFFFF, 0xFFFFFF1F), new op.u64(0xFFFFFFFF, 0xFFFFFF0F)
];

var r64 = [new op.u64(0, 0), new op.u64(0, 1), new op.u64(0, 2), new op.u64(0, 3), new op.u64(0, 4), new op.u64(0, 5), new op.u64(0, 6), new op.u64(0, 7),
  new op.u64(0, 8), new op.u64(0, 9), new op.u64(0, 10), new op.u64(0, 11), new op.u64(0, 12), new op.u64(0, 13)
];

var PC64 = function(j, r) {
  return j64[j].plus(r64[r]).shiftLeft(56);
}
var QC64 = function(j, r) {
  return r64[r].xor(nj64[j]);
}

var RBTT = function(t, d, a, b0, b1, b2, b3, b4, b5, b6, b7) {
  t[d] = op.xor64(T0[B64(0, a[b0])], T1[B64(1, a[b1])], T2[B64(2, a[b2])], T3[B64(3, a[b3])], T4[B64(4, a[b4])], T5[B64(5, a[b5])], T6[B64(6, a[b6])], T7[B64(7, a[b7])]);
}

var ROUND_BIG_P = function(a, r) {
  var t = new Array(16);
  for (var i = 0; i < 16; i++) {
    a[i].setxor64(PC64(i, r));
  }
  for (var u = 0; u < 16; u += 4) {
    RBTT(t, u, a, u, (u + 1) & 0xF,
      (u + 2) & 0xF, (u + 3) & 0xF, (u + 4) & 0xF,
      (u + 5) & 0xF, (u + 6) & 0xF, (u + 11) & 0xF);
    RBTT(t, u + 1, a, u + 1, (u + 2) & 0xF,
      (u + 3) & 0xF, (u + 4) & 0xF, (u + 5) & 0xF,
      (u + 6) & 0xF, (u + 7) & 0xF, (u + 12) & 0xF);
    RBTT(t, u + 2, a, u + 2, (u + 3) & 0xF,
      (u + 4) & 0xF, (u + 5) & 0xF, (u + 6) & 0xF,
      (u + 7) & 0xF, (u + 8) & 0xF, (u + 13) & 0xF);
    RBTT(t, u + 3, a, u + 3, (u + 4) & 0xF,
      (u + 5) & 0xF, (u + 6) & 0xF, (u + 7) & 0xF,
      (u + 8) & 0xF, (u + 9) & 0xF, (u + 14) & 0xF);
  }
  op.bufferInsert(a, 0, t, 16);
}

var ROUND_BIG_Q = function(a, r) {
  var t = new Array(16);
  for (var i = 0; i < 16; i++) {
    a[i].setxor64(QC64(i, r));
  }
  for (var u = 0; u < 16; u += 4) {
    RBTT(t, u + 0, a, (u + 1) & 0xF, (u + 3) & 0xF,
      (u + 5) & 0xF, (u + 11) & 0xF, (u + 0) & 0xF,
      (u + 2) & 0xF, (u + 4) & 0xF, (u + 6) & 0xF);
    RBTT(t, u + 1, a, (u + 2) & 0xF, (u + 4) & 0xF,
      (u + 6) & 0xF, (u + 12) & 0xF, (u + 1) & 0xF,
      (u + 3) & 0xF, (u + 5) & 0xF, (u + 7) & 0xF);
    RBTT(t, u + 2, a, (u + 3) & 0xF, (u + 5) & 0xF,
      (u + 7) & 0xF, (u + 13) & 0xF, (u + 2) & 0xF,
      (u + 4) & 0xF, (u + 6) & 0xF, (u + 8) & 0xF);
    RBTT(t, u + 3, a, (u + 4) & 0xF, (u + 6) & 0xF,
      (u + 8) & 0xF, (u + 14) & 0xF, (u + 3) & 0xF,
      (u + 5) & 0xF, (u + 7) & 0xF, (u + 9) & 0xF);
  }
  op.bufferInsert(a, 0, t, 16);
}

var PERM_BIG_P = function(a) {
  for (var r = 0; r < 14; r ++) {
    ROUND_BIG_P(a, r);
  }
}

var PERM_BIG_Q = function(a) {
  for (var r = 0; r < 14; r ++) {
    ROUND_BIG_Q(a, r);
  }
}


var compress = function(int64buf, state) {
  var g = new Array(16);
  var m = new Array(16);
  for (var u = 0; u < 16; u++) {
    m[u] = int64buf[u];
    g[u] = m[u].xor(state[u]);
  }
  PERM_BIG_P(g);
  PERM_BIG_Q(m);
  for (var u = 0; u < 16; u++) {
    state[u].setxor64(g[u], m[u]);
  }
}

var final = function(state) {
  var x = new Array(16);
  op.bufferInsert64(x, 0, state, 16);
  PERM_BIG_P(x);
  for (var u = 0; u < 16; u++)
    state[u].setxor64(x[u]);
}

var groestl = function(ctx, data, len) {
  var buf, ptr;
  //create a local copy of states
  var V = new Array(16);
  buf = ctx.buffer;
  ptr = ctx.ptr;
  if (len < ctx.buffer.length - ptr) {
    op.bufferInsert(buf, ptr, data, data.length);
    ptr += data.length;
    ctx.ptr = ptr;
    return;
  }
  //perform a deep copy of current state
  op.bufferInsert(V, 0, ctx.state, 16);
  while (len > 0) {
    var clen = ctx.buffer.length - ptr;
    if (clen > len) clen = len;
    op.bufferInsert(buf, ptr, data, clen);
    ptr += clen;
    data = data.slice(clen);
    len -= clen;
    if (ptr === ctx.buffer.length) {
      var int64Buf = h.bytes2Int64Buffer(buf);
      compress(int64Buf, V);
      ctx.count.addOne();
      ptr = 0;
    }
  }
  ctx.state = V;
  ctx.ptr = ptr;
}

var groestlClose = function(ctx) {
  var buf = ctx.buffer;
  var ptr = ctx.ptr;
  var pad = new Array(136);
  var len = buf.length;
  var padLen;
  var count;
  pad[0] = 0x80;
  if (ptr < 120) {
    padLen = 128 - ptr;
    count = ctx.count.plus(new op.u64(0, 1));
  }
  else {
    padLen = 256 - ptr;
    count = ctx.count.plus(new op.u64(0, 2));
  }
  op.bufferSet(pad, 1, 0, padLen - 9);
  h.bufferEncode64(pad, padLen - 8, count);
  groestl(ctx, pad, padLen);
  final(ctx.state);
  var out = new Array(16);
  for (var u = 0, v = 8; u < 8; u++, v++) {
    out[2 * u] = ctx.state[v].hi;
    out[2 * u + 1] = ctx.state[v].lo;
  }
  return out;
}

module.exports = function(input, format, output) {
  var msg;
  if (format === 1) {
    msg = input;
  }
  else if (format === 2) {
    msg = h.int32Buffer2Bytes(input);
  }
  else {
    msg = h.string2bytes(input);
  }
  var ctx = {};
  ctx.state = new Array(16);
  for (var i = 0; i < 15; i++) {
    ctx.state[i] = new op.u64(0, 0);
  }
  ctx.state[15] = new op.u64(0, 512);
  ctx.ptr = 0;
  ctx.count = op.u64.prototype.zero();
  ctx.buffer = new Array(128);
  groestl(ctx, msg, msg.length);
  var r = groestlClose(ctx, 0, 0);
  var out;
  if (output === 2) {
    out = r;
  }
  else if (output === 1) {
    out = h.int32Buffer2Bytes(r)
  }
  else {
    out = h.int32ArrayToHexString(r)
  }
  return out;
}
},{"./helper":203,"./op":207}],203:[function(require,module,exports){
'use strict';
// String functions

var op = require('./op.js');

module.exports.int8ArrayToHexString = function toString(array) {
	var string = '';
	for (var i in array) {
		if (array[i] < 16) {
			string += '0' + array[i].toString(16);
		}
		else {
			string += array[i].toString(16);
		}
	}
	return string;
}

module.exports.int32ArrayToHexString = function toString(array) {
	var string = '';
	for (var i in array) {
		var s = array[i];
		if (s < 0) {
			s = 0xFFFFFFFF + array[i] + 1;
		}
		var l = s.toString(16);
		var padding = 8;
		while (l.length < padding) {
			l = "0" + l;
		}
		string += l;
	}
	return string;
}

module.exports.hex2string = function toString(s) {
	for (var c = [], len = s.length, i = 0; i < len; i += 2)
		c.push(String.fromCharCode(parseInt(s.substring(i, i + 2), 16)));
	return c.join('');
}

module.exports.hex2bytes = function toString(s) {
	for (var c = [], len = s.length, i = 0; i < len; i += 2)
		c.push(parseInt(s.substring(i, i + 2), 16));
	return c;
}

module.exports.string2hex = function toString(s) {
	for (var p = [], len = s.length, i = 0; i < len; i++) {
		p.push((256 + s.charCodeAt(i)).toString(16).substring(1));
	}
	return p.join('');
}

module.exports.string2bytes = function (s) {
	for (var b = [], i = 0; i < s.length; i++) b[i] = s.charCodeAt(i);
	return b;
}

module.exports.bytes2Int16Buffer = function(b) {
	var len = b.length;
	var bufferLength = len?(((len - 1) >>> 1) + 1):0;
	var buffer = new Array(bufferLength);
	var i = 0;
	var j = 0;
	while (i<len) {
		buffer[j] = (buffer[j] << 8) | b[i];
		i++;
		if (!(i%2)) j++;
	}
	return buffer;
}

module.exports.bytes2Int32Buffer = function(b) {
	var len = b.length;
	if (!len) return [];
	var bufferLength = len?(((len - 1) >>> 2) + 1):0;
	var buffer = new Array(bufferLength);
	for (var j = 0;j<bufferLength;j++) {
		buffer[j] = (b[j*4] << 24) | (b[j*4 + 1] << 16) | (b[j*4 + 2] << 8) | b[j*4 + 3];
	}
	return buffer;
}

module.exports.bytes2Int32BufferLeAligned = function(b) {
	var len = b.length;
	if (!len) return [];
	var bufferLength = len?(((len - 1) >>> 2) + 1):0;
	var buffer = new Array(bufferLength);
	for (var j = 0;j<bufferLength;j++) {
		buffer[j] = (b[j*4 + 3] << 24) | (b[j*4 + 2] << 16) | (b[j*4 + 1] << 8) | b[j*4];
	}
	return buffer;
}

module.exports.bytes2Int64Buffer = function(b) {
	var len = b.length;
	if (!len) return [];
	var bufferLength = len?(((len - 1) >>> 3) + 1):0;
	var buffer = new Array(bufferLength);
	for (var j = 0;j<bufferLength;j++) {
		buffer[j] = new op.u64((b[j*8] << 24) | (b[j*8 + 1] << 16) | (b[j*8 + 2] << 8) | b[j*8 + 3],(b[j*8 + 4] << 24) | (b[j*8 + 5] << 16) | (b[j*8 + 6] << 8) | b[j*8 + 7]);
	}
	return buffer;
}

module.exports.bytes2Int64BufferLeAligned = function(b) {
	var len = b.length;
	if (!len) return [];
	var bufferLength = len?(((len - 1) >>> 3) + 1):0;
	var buffer = new Array(bufferLength);
	for (var j = 0;j<bufferLength;j++) {
		buffer[j] = new op.u64((b[j*8 + 7] << 24) | (b[j*8 + 6] << 16) | (b[j*8 + 5] << 8) | b[j*8 + 4],(b[j*8 + 3] << 24) | (b[j*8 + 2] << 16) | (b[j*8 + 1] << 8) | b[j*8]);
	}
	return buffer;
}

module.exports.bufferEncode64leAligned = function(buffer,offset,uint64) {
	buffer[offset + 7] = uint64.hi >>> 24;
	buffer[offset + 6] = uint64.hi >>> 16 & 0xFF;
	buffer[offset + 5] = uint64.hi >>> 8 & 0xFF;
	buffer[offset + 4] = uint64.hi & 0xFF;
	buffer[offset + 3] = uint64.lo >>> 24;
	buffer[offset + 2] = uint64.lo >>> 16 & 0xFF;
	buffer[offset + 1] = uint64.lo >>> 8 & 0xFF;
	buffer[offset + 0] = uint64.lo & 0xFF;
}

module.exports.bufferEncode64 = function(buffer,offset,uint64) {
	buffer[offset] = uint64.hi >>> 24;
	buffer[offset + 1] = uint64.hi >>> 16 & 0xFF;
	buffer[offset + 2] = uint64.hi >>> 8 & 0xFF;
	buffer[offset + 3] = uint64.hi & 0xFF;
	buffer[offset + 4] = uint64.lo >>> 24;
	buffer[offset + 5] = uint64.lo >>> 16 & 0xFF;
	buffer[offset + 6] = uint64.lo >>> 8 & 0xFF;
	buffer[offset + 7] = uint64.lo & 0xFF;
}

module.exports.int32Buffer2Bytes = function(b) {
	var len = b.length;
	var bufferLength = len*4;
	var buffer = new Array(bufferLength);
	var i = 0;
	while (i<len) {
		buffer[i*4] = (b[i] & 0xFF000000) >>> 24;
		buffer[i*4 + 1] = (b[i] & 0x00FF0000) >>> 16;
		buffer[i*4 + 2] = (b[i] & 0x0000FF00) >>> 8;
		buffer[i*4 + 3] = (b[i] & 0x000000FF);
		i++;
	}
	return buffer;
}


module.exports.string2Int32Buffer = function (s) {
	return this.bytes2Int32Buffer(this.string2bytes(s));
}

},{"./op.js":207}],204:[function(require,module,exports){
/////////////////////////////////////
///////////////  Jh /////////////////

//// Written by Quantum Explorer ////
////////// Dash Foundation //////////
/// Released under the MIT License //
/////////////////////////////////////

var op = require('./op');
var helper = require('./helper');

var Jh_BlockSize = 64;
var Jh_StateSize = 32;

var JH_HX = 8;
var JH_HY = 4;

var IV512 = [
  (0x6fd14b96), (0x3e00aa17), (0x636a2e05), (0x7a15d543),
  (0x8a225e8d), (0x0c97ef0b), (0xe9341259), (0xf2b3c361),
  (0x891da0c1), (0x536f801e), (0x2aa9056b), (0xea2b6d80),
  (0x588eccdb), (0x2075baa6), (0xa90f3a76), (0xbaf83bf7),
  (0x0169e605), (0x41e34a69), (0x46b58a8e), (0x2e6fe65a),
  (0x1047a7d0), (0xc1843c24), (0x3b6e71b1), (0x2d5ac199),
  (0xcf57f6ec), (0x9db1f856), (0xa706887c), (0x5716b156),
  (0xe3c2fcdf), (0xe68517fb), (0x545a4678), (0xcc8cdd4b)
];

var C = [
  (0x72d5dea2), (0xdf15f867), (0x7b84150a),
  (0xb7231557), (0x81abd690), (0x4d5a87f6),
  (0x4e9f4fc5), (0xc3d12b40), (0xea983ae0),
  (0x5c45fa9c), (0x03c5d299), (0x66b2999a),
  (0x660296b4), (0xf2bb538a), (0xb556141a),
  (0x88dba231), (0x03a35a5c), (0x9a190edb),
  (0x403fb20a), (0x87c14410), (0x1c051980),
  (0x849e951d), (0x6f33ebad), (0x5ee7cddc),
  (0x10ba1392), (0x02bf6b41), (0xdc786515),
  (0xf7bb27d0), (0x0a2c8139), (0x37aa7850),
  (0x3f1abfd2), (0x410091d3), (0x422d5a0d),
  (0xf6cc7e90), (0xdd629f9c), (0x92c097ce),
  (0x185ca70b), (0xc72b44ac), (0xd1df65d6),
  (0x63c6fc23), (0x976e6c03), (0x9ee0b81a),
  (0x2105457e), (0x446ceca8), (0xeef103bb),
  (0x5d8e61fa), (0xfd9697b2), (0x94838197),
  (0x4a8e8537), (0xdb03302f), (0x2a678d2d),
  (0xfb9f6a95), (0x8afe7381), (0xf8b8696c),
  (0x8ac77246), (0xc07f4214), (0xc5f4158f),
  (0xbdc75ec4), (0x75446fa7), (0x8f11bb80),
  (0x52de75b7), (0xaee488bc), (0x82b8001e),
  (0x98a6a3f4), (0x8ef48f33), (0xa9a36315),
  (0xaa5f5624), (0xd5b7f989), (0xb6f1ed20),
  (0x7c5ae0fd), (0x36cae95a), (0x06422c36),
  (0xce293543), (0x4efe983d), (0x533af974),
  (0x739a4ba7), (0xd0f51f59), (0x6f4e8186),
  (0x0e9dad81), (0xafd85a9f), (0xa7050667),
  (0xee34626a), (0x8b0b28be), (0x6eb91727),
  (0x47740726), (0xc680103f), (0xe0a07e6f),
  (0xc67e487b), (0x0d550aa5), (0x4af8a4c0),
  (0x91e3e79f), (0x978ef19e), (0x86767281),
  (0x50608dd4), (0x7e9e5a41), (0xf3e5b062),
  (0xfc9f1fec), (0x4054207a), (0xe3e41a00),
  (0xcef4c984), (0x4fd794f5), (0x9dfa95d8),
  (0x552e7e11), (0x24c354a5), (0x5bdf7228),
  (0xbdfe6e28), (0x78f57fe2), (0x0fa5c4b2),
  (0x05897cef), (0xee49d32e), (0x447e9385),
  (0xeb28597f), (0x705f6937), (0xb324314a),
  (0x5e8628f1), (0x1dd6e465), (0xc71b7704),
  (0x51b920e7), (0x74fe43e8), (0x23d4878a),
  (0x7d29e8a3), (0x927694f2), (0xddcb7a09),
  (0x9b30d9c1), (0x1d1b30fb), (0x5bdc1be0),
  (0xda24494f), (0xf29c82bf), (0xa4e7ba31),
  (0xb470bfff), (0x0d324405), (0xdef8bc48),
  (0x3baefc32), (0x53bbd339), (0x459fc3c1),
  (0xe0298ba0), (0xe5c905fd), (0xf7ae090f),
  (0x94703412), (0x4290f134), (0xa271b701),
  (0xe344ed95), (0xe93b8e36), (0x4f2f984a),
  (0x88401d63), (0xa06cf615), (0x47c1444b),
  (0x8752afff), (0x7ebb4af1), (0xe20ac630),
  (0x4670b6c5), (0xcc6e8ce6), (0xa4d5a456),
  (0xbd4fca00), (0xda9d844b), (0xc83e18ae),
  (0x7357ce45), (0x3064d1ad), (0xe8a6ce68),
  (0x145c2567), (0xa3da8cf2), (0xcb0ee116),
  (0x33e90658), (0x9a94999a), (0x1f60b220),
  (0xc26f847b), (0xd1ceac7f), (0xa0d18518),
  (0x32595ba1), (0x8ddd19d3), (0x509a1cc0),
  (0xaaa5b446), (0x9f3d6367), (0xe4046bba),
  (0xf6ca19ab), (0x0b56ee7e), (0x1fb179ea),
  (0xa9282174), (0xe9bdf735), (0x3b3651ee),
  (0x1d57ac5a), (0x7550d376), (0x3a46c2fe),
  (0xa37d7001), (0xf735c1af), (0x98a4d842),
  (0x78edec20), (0x9e6b6779), (0x41836315),
  (0xea3adba8), (0xfac33b4d), (0x32832c83),
  (0xa7403b1f), (0x1c2747f3), (0x5940f034),
  (0xb72d769a), (0xe73e4e6c), (0xd2214ffd),
  (0xb8fd8d39), (0xdc5759ef), (0x8d9b0c49),
  (0x2b49ebda), (0x5ba2d749), (0x68f3700d),
  (0x7d3baed0), (0x7a8d5584), (0xf5a5e9f0),
  (0xe4f88e65), (0xa0b8a2f4), (0x36103b53),
  (0x0ca8079e), (0x753eec5a), (0x91689492),
  (0x56e8884f), (0x5bb05c55), (0xf8babc4c),
  (0xe3bb3b99), (0xf387947b), (0x75daf4d6),
  (0x726b1c5d), (0x64aeac28), (0xdc34b36d),
  (0x6c34a550), (0xb828db71), (0xf861e2f2),
  (0x108d512a), (0xe3db6433), (0x59dd75fc),
  (0x1cacbcf1), (0x43ce3fa2), (0x67bbd13c),
  (0x02e843b0), (0x330a5bca), (0x8829a175),
  (0x7f34194d), (0xb416535c), (0x923b94c3),
  (0x0e794d1e), (0x797475d7), (0xb6eeaf3f),
  (0xeaa8d4f7), (0xbe1a3921), (0x5cf47e09),
  (0x4c232751), (0x26a32453), (0xba323cd2),
  (0x44a3174a), (0x6da6d5ad), (0xb51d3ea6),
  (0xaff2c908), (0x83593d98), (0x916b3c56),
  (0x4cf87ca1), (0x7286604d), (0x46e23ecc),
  (0x086ec7f6), (0x2f9833b3), (0xb1bc765e),
  (0x2bd666a5), (0xefc4e62a), (0x06f4b6e8),
  (0xbec1d436), (0x74ee8215), (0xbcef2163),
  (0xfdc14e0d), (0xf453c969), (0xa77d5ac4),
  (0x06585826), (0x7ec11416), (0x06e0fa16),
  (0x7e90af3d), (0x28639d3f), (0xd2c9f2e3),
  (0x009bd20c), (0x5faace30), (0xb7d40c30),
  (0x742a5116), (0xf2e03298), (0x0deb30d8),
  (0xe3cef89a), (0x4bc59e7b), (0xb5f17992),
  (0xff51e66e), (0x048668d3), (0x9b234d57),
  (0xe6966731), (0xcce6a6f3), (0x170a7505),
  (0xb17681d9), (0x13326cce), (0x3c175284),
  (0xf805a262), (0xf42bcbb3), (0x78471547),
  (0xff465482), (0x23936a48), (0x38df5807),
  (0x4e5e6565), (0xf2fc7c89), (0xfc86508e),
  (0x31702e44), (0xd00bca86), (0xf04009a2),
  (0x3078474e), (0x65a0ee39), (0xd1f73883),
  (0xf75ee937), (0xe42c3abd), (0x2197b226),
  (0x0113f86f), (0xa344edd1), (0xef9fdee7),
  (0x8ba0df15), (0x762592d9), (0x3c85f7f6),
  (0x12dc42be), (0xd8a7ec7c), (0xab27b07e),
  (0x538d7dda), (0xaa3ea8de), (0xaa25ce93),
  (0xbd0269d8), (0x5af643fd), (0x1a7308f9),
  (0xc05fefda), (0x174a19a5), (0x974d6633),
  (0x4cfd216a), (0x35b49831), (0xdb411570),
  (0xea1e0fbb), (0xedcd549b), (0x9ad063a1),
  (0x51974072), (0xf6759dbf), (0x91476fe2)
];

var Sb = function(x, c) {
  x[3] = ~x[3];
  x[0] ^= (c) & ~x[2];
  var tmp = (c) ^ (x[0] & x[1]);
  x[0] ^= x[2] & x[3];
  x[3] ^= ~x[1] & x[2];
  x[1] ^= x[0] & x[2];
  x[2] ^= x[0] & ~x[3];
  x[0] ^= x[1] | x[3];
  x[3] ^= x[1] & x[2];
  x[1] ^= tmp & x[0];
  x[2] ^= tmp;
  return x;
}

var Lb = function(x) {
  x[4] ^= x[1];
  x[5] ^= x[2];
  x[6] ^= x[3] ^ x[0];
  x[7] ^= x[0];
  x[0] ^= x[5];
  x[1] ^= x[6];
  x[2] ^= x[7] ^ x[4];
  x[3] ^= x[4];
  return x;
}

var Ceven = function(n, r) {
  return op.swap32(C[((r) << 3) + 3 - n]);
}

var Codd = function(n, r) {
  return op.swap32(C[((r) << 3) + 7 - n]);
}

var S = function(x0, x1, x2, x3, cb, r) {
  var x = Sb([x0[3], x1[3], x2[3], x3[3]], cb(3, r));
  x0[3] = x[0];
  x1[3] = x[1];
  x2[3] = x[2];
  x3[3] = x[3];
  x = Sb([x0[2], x1[2], x2[2], x3[2]], cb(2, r));
  x0[2] = x[0];
  x1[2] = x[1];
  x2[2] = x[2];
  x3[2] = x[3];
  x = Sb([x0[1], x1[1], x2[1], x3[1]], cb(1, r));
  x0[1] = x[0];
  x1[1] = x[1];
  x2[1] = x[2];
  x3[1] = x[3];
  x = Sb([x0[0], x1[0], x2[0], x3[0]], cb(0, r));
  x0[0] = x[0];
  x1[0] = x[1];
  x2[0] = x[2];
  x3[0] = x[3];
}

var L = function(x0, x1, x2, x3, x4, x5, x6, x7) {
  var x = Lb([x0[3], x1[3], x2[3], x3[3], x4[3], x5[3], x6[3], x7[3]]);
  x0[3] = x[0];
  x1[3] = x[1];
  x2[3] = x[2];
  x3[3] = x[3];
  x4[3] = x[4];
  x5[3] = x[5];
  x6[3] = x[6];
  x7[3] = x[7];
  x = Lb([x0[2], x1[2], x2[2], x3[2], x4[2], x5[2], x6[2], x7[2]]);
  x0[2] = x[0];
  x1[2] = x[1];
  x2[2] = x[2];
  x3[2] = x[3];
  x4[2] = x[4];
  x5[2] = x[5];
  x6[2] = x[6];
  x7[2] = x[7];
  x = Lb([x0[1], x1[1], x2[1], x3[1], x4[1], x5[1], x6[1], x7[1]]);
  x0[1] = x[0];
  x1[1] = x[1];
  x2[1] = x[2];
  x3[1] = x[3];
  x4[1] = x[4];
  x5[1] = x[5];
  x6[1] = x[6];
  x7[1] = x[7];
  x = Lb([x0[0], x1[0], x2[0], x3[0], x4[0], x5[0], x6[0], x7[0]]);
  x0[0] = x[0];
  x1[0] = x[1];
  x2[0] = x[2];
  x3[0] = x[3];
  x4[0] = x[4];
  x5[0] = x[5];
  x6[0] = x[6];
  x7[0] = x[7];
}

var Wz = function(x, c, n) {
  var t = (x[3] & (c)) << (n);
  x[3] = ((x[3] >> (n)) & (c)) | t;
  t = (x[2] & (c)) << (n);
  x[2] = ((x[2] >> (n)) & (c)) | t;
  t = (x[1] & (c)) << (n);
  x[1] = ((x[1] >> (n)) & (c)) | t;
  t = (x[0] & (c)) << (n);
  x[0] = ((x[0] >> (n)) & (c)) | t;
}

var W = function(ro, x) {
  switch (ro) {
    case 0:
      return Wz(x, (0x55555555), 1);
    case 1:
      return Wz(x, (0x33333333), 2);
    case 2:
      return Wz(x, (0x0F0F0F0F), 4);
    case 3:
      return Wz(x, (0x00FF00FF), 8);
    case 4:
      return Wz(x, (0x0000FFFF), 16);
    case 5:
      {
        var t = x[3];
        x[3] = x[2];
        x[2] = t;
        t = x[1];
        x[1] = x[0];
        x[0] = t;
        return;
      }
    case 6:
      {
        var t = x[3];
        x[3] = x[1];
        x[1] = t;
        t = x[2];
        x[2] = x[0];
        x[0] = t;
        return;
      }
  }
}

var SL = function(h, r, ro) {
  S(h[0], h[2], h[4], h[6], Ceven, r);
  S(h[1], h[3], h[5], h[7], Codd, r);
  L(h[0], h[2], h[4], h[6], h[1], h[3], h[5], h[7]);
  W(ro, h[1]);
  W(ro, h[3]);
  W(ro, h[5]);
  W(ro, h[7]);
}

var READ_STATE = function(h, state) {
  h[0][3] = state[0];
  h[0][2] = state[1];
  h[0][1] = state[2];
  h[0][0] = state[3];
  h[1][3] = state[4];
  h[1][2] = state[5];
  h[1][1] = state[6];
  h[1][0] = state[7];
  h[2][3] = state[8];
  h[2][2] = state[9];
  h[2][1] = state[10];
  h[2][0] = state[11];
  h[3][3] = state[12];
  h[3][2] = state[13];
  h[3][1] = state[14];
  h[3][0] = state[15];
  h[4][3] = state[16];
  h[4][2] = state[17];
  h[4][1] = state[18];
  h[4][0] = state[19];
  h[5][3] = state[20];
  h[5][2] = state[21];
  h[5][1] = state[22];
  h[5][0] = state[23];
  h[6][3] = state[24];
  h[6][2] = state[25];
  h[6][1] = state[26];
  h[6][0] = state[27];
  h[7][3] = state[28];
  h[7][2] = state[29];
  h[7][1] = state[30];
  h[7][0] = state[31];
}

var WRITE_STATE = function(h, state) {
  state[0] = h[0][3];
  state[1] = h[0][2];
  state[2] = h[0][1];
  state[3] = h[0][0];
  state[4] = h[1][3];
  state[5] = h[1][2];
  state[6] = h[1][1];
  state[7] = h[1][0];
  state[8] = h[2][3];
  state[9] = h[2][2];
  state[10] = h[2][1];
  state[11] = h[2][0];
  state[12] = h[3][3];
  state[13] = h[3][2];
  state[14] = h[3][1];
  state[15] = h[3][0];
  state[16] = h[4][3];
  state[17] = h[4][2];
  state[18] = h[4][1];
  state[19] = h[4][0];
  state[20] = h[5][3];
  state[21] = h[5][2];
  state[22] = h[5][1];
  state[23] = h[5][0];
  state[24] = h[6][3];
  state[25] = h[6][2];
  state[26] = h[6][1];
  state[27] = h[6][0];
  state[28] = h[7][3];
  state[29] = h[7][2];
  state[30] = h[7][1];
  state[31] = h[7][0];
}

var E8 = function(h) {
  for (var r = 0; r < 42; r += 7) {
    SL(h, r + 0, 0);
    SL(h, r + 1, 1);
    SL(h, r + 2, 2);
    SL(h, r + 3, 3);
    SL(h, r + 4, 4);
    SL(h, r + 5, 5);
    SL(h, r + 6, 6);
  }
}

var bufferXORInsertBackwards = function(buffer, data, x, y, bufferOffsetX, bufferOffsetY) {
  if (!bufferOffsetX) bufferOffsetX = 0;
  if (!bufferOffsetY) bufferOffsetY = 0;
  for (var i = 0; i < x; i++) {
    for (var j = 0; j < x; j++) {
      var m = i + bufferOffsetX;
      var n = bufferOffsetY + y - 1 - j;
      var xOr = buffer[m][n] ^ data[i * 4 + j];
      buffer[m][n] = xOr;
    }
  }
}

var jh = function(ctx, data, len) {
  var buf, ptr;
  //create a local copy of states
  buf = ctx.buffer;
  ptr = ctx.ptr;
  if (!len) len = data.length;
  if (len < ctx.buffer.length - ptr) {
    op.bufferInsert(buf, ptr, data, data.length);
    ptr += data.length;
    ctx.ptr = ptr;
    return;
  }
  var V = new Array(JH_HX);
  for (var i = 0; i < JH_HX; i++) {
    V[i] = new Array(JH_HY);
  }
  READ_STATE(V, ctx.state);
  while (len > 0) {
    var clen = ctx.buffer.length - ptr;
    if (clen > len) clen = len;
    op.bufferInsert(buf, ptr, data, clen);
    ptr += clen;
    data = data.slice(clen);
    len -= clen;
    if (ptr === ctx.buffer.length) {
      var int32Buf = op.swap32Array(helper.bytes2Int32Buffer(buf));

      bufferXORInsertBackwards(V, int32Buf, 4, 4);
      E8(V);
      bufferXORInsertBackwards(V, int32Buf, 4, 4, 4, 0);
      if ((ctx.blockCountLow = op.t32(ctx.blockCountLow + 1)) == 0)
        ctx.blockCountHigh++;
      ptr = 0;
    }
  }
  WRITE_STATE(V, ctx.state);
  ctx.ptr = ptr;
}

var jhClose = function(ctx) {
  var z;
  var buf = new Array(128);
  var numz, u;
  var l = new Array(4);
  buf[0] = 0x80;
  if (ctx.ptr == 0) {
    numz = 47;
  }
  else {
    numz = 111 - ctx.ptr;
  }
  op.bufferSet(buf, 1, 0, numz);
  l[0] = op.t32(ctx.blockCountLow << 9) + (ctx.ptr << 3);
  l[1] = op.t32(ctx.blockCountLow >> 23) + op.t32(ctx.blockCountHigh << 9);
  l[2] = op.t32(ctx.blockCountHigh >> 23);
  l[3] = 0;
  var lBytes = helper.int32Buffer2Bytes(op.swap32Array(l));
  op.bufferInsertBackwards(buf, 1 + numz, lBytes, 16);
  jh(ctx, buf, numz + 17);
  var out = new Array(16);
  for (u = 0; u < 16; u++)
    out[u] = op.swap32(ctx.state[u + 16]);
  return out;
}

module.exports = function(input, format, output) {
  var msg;
  if (format === 1) {
    msg = input;
  }
  else if (format === 2) {
    msg = helper.int32Buffer2Bytes(input);
  }
  else {
    msg = helper.string2bytes(input);
  }
  var ctx = {};
  ctx.state = op.swap32Array(IV512);
  ctx.ptr = 0;
  ctx.buffer = new Array(Jh_BlockSize);
  ctx.blockCountHigh = 0;
  ctx.blockCountLow = 0;
  jh(ctx, msg);
  var r = jhClose(ctx);
  var out;
  if (output === 2) {
    out = r;
  }
  else if (output === 1) {
    out = helper.int32Buffer2Bytes(r)
  }
  else {
    out = helper.int32ArrayToHexString(r)
  }
  return out;
}
},{"./helper":203,"./op":207}],205:[function(require,module,exports){
// Copyright 2015-2016 Chen, Yi-Cyuan

// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:

// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

var HEX_CHARS = '0123456789abcdef'.split('');
var KECCAK_PADDING = [1, 256, 65536, 16777216];
var SHIFT = [0, 8, 16, 24];
var RC = [1, 0, 32898, 0, 32906, 2147483648, 2147516416, 2147483648, 32907, 0, 2147483649,
  0, 2147516545, 2147483648, 32777, 2147483648, 138, 0, 136, 0, 2147516425, 0,
  2147483658, 0, 2147516555, 0, 139, 2147483648, 32905, 2147483648, 32771,
  2147483648, 32770, 2147483648, 128, 2147483648, 32778, 0, 2147483658, 2147483648,
  2147516545, 2147483648, 32896, 2147483648, 2147483649, 0, 2147516424, 2147483648
];
var BITS = [512];
var OUTPUT_TYPES = ['hex', 'buffer', 'array'];

var h = require('./helper');

var createOutputMethod = function(bits, padding, outputType) {
  return function(message) {
    return new Keccak(bits, padding, bits).update(message)[outputType]();
  }
};

var createShakeOutputMethod = function(bits, padding, outputType) {
  return function(message, outputBits) {
    return new Keccak(bits, padding, outputBits).update(message)[outputType]();
  }
};

var createMethod = function(bits, padding) {
  var method = createOutputMethod(bits, padding, 'array');
  method.create = function() {
    return new Keccak(bits, padding, bits);
  };
  method.update = function(message) {
    return method.create().update(message);
  };
  for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
    var type = OUTPUT_TYPES[i];
    method[type] = createOutputMethod(bits, padding, type);
  }
  return method;
};

var algorithms = [{
  name: 'keccak',
  padding: KECCAK_PADDING,
  bits: BITS,
  createMethod: createMethod
}];

var methods = {};

for (var i = 0; i < algorithms.length; ++i) {
  var algorithm = algorithms[i];
  var bits = algorithm.bits;
  var createMethod = algorithm.createMethod;
  for (var j = 0; j < bits.length; ++j) {
    var method = algorithm.createMethod(bits[j], algorithm.padding);
    methods[algorithm.name + '_' + bits[j]] = method;
  }
}

function Keccak(bits, padding, outputBits) {
  this.blocks = [];
  this.s = [];
  this.padding = padding;
  this.outputBits = outputBits;
  this.reset = true;
  this.block = 0;
  this.start = 0;
  this.blockCount = (1600 - (bits << 1)) >> 5;
  this.byteCount = this.blockCount << 2;
  this.outputBlocks = outputBits >> 5;
  this.extraBytes = (outputBits & 31) >> 3;

  for (var i = 0; i < 50; ++i) {
    this.s[i] = 0;
  }
};

Keccak.prototype.update = function(message) {
  var notString = typeof(message) != 'string';
  if (notString && Object.prototype.toString.call(message.constructor) === "[object ArrayBuffer]") {
    message = h.string2bytes(message);
  }
  var length = message.length,
    blocks = this.blocks,
    byteCount = this.byteCount,
    blockCount = this.blockCount,
    index = 0,
    s = this.s,
    i, code;

  while (index < length) {
    if (this.reset) {
      this.reset = false;
      blocks[0] = this.block;
      for (i = 1; i < blockCount + 1; ++i) {
        blocks[i] = 0;
      }
    }
    if (notString) {
      for (i = this.start; index < length && i < byteCount; ++index) {
        blocks[i >> 2] |= message[index] << SHIFT[i++ & 3];
      }
    }
    else {
      for (i = this.start; index < length && i < byteCount; ++index) {
        code = message.charCodeAt(index);
        if (code < 0x80) {
          blocks[i >> 2] |= code << SHIFT[i++ & 3];
        }
        else if (code < 0x800) {
          blocks[i >> 2] |= (0xc0 | (code >> 6)) << SHIFT[i++ & 3];
          blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
        }
        else if (code < 0xd800 || code >= 0xe000) {
          blocks[i >> 2] |= (0xe0 | (code >> 12)) << SHIFT[i++ & 3];
          blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
          blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
        }
        else {
          code = 0x10000 + (((code & 0x3ff) << 10) | (message.charCodeAt(++index) & 0x3ff));
          blocks[i >> 2] |= (0xf0 | (code >> 18)) << SHIFT[i++ & 3];
          blocks[i >> 2] |= (0x80 | ((code >> 12) & 0x3f)) << SHIFT[i++ & 3];
          blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
          blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
        }
      }
    }
    this.lastByteIndex = i;
    if (i >= byteCount) {
      this.start = i - byteCount;
      this.block = blocks[blockCount];
      for (i = 0; i < blockCount; ++i) {
        s[i] ^= blocks[i];
      }
      f(s);
      this.reset = true;
    }
    else {
      this.start = i;
    }
  }
  return this;
};

Keccak.prototype.finalize = function() {
  var blocks = this.blocks,
    i = this.lastByteIndex,
    blockCount = this.blockCount,
    s = this.s;
  blocks[i >> 2] |= this.padding[i & 3];
  if (this.lastByteIndex == this.byteCount) {
    blocks[0] = blocks[blockCount];
    for (i = 1; i < blockCount + 1; ++i) {
      blocks[i] = 0;
    }
  }
  blocks[blockCount - 1] |= 0x80000000;
  for (i = 0; i < blockCount; ++i) {
    s[i] ^= blocks[i];
  }
  f(s);
};

Keccak.prototype.toString = Keccak.prototype.hex = function() {
  this.finalize();

  var blockCount = this.blockCount,
    s = this.s,
    outputBlocks = this.outputBlocks,
    extraBytes = this.extraBytes,
    i = 0,
    j = 0;
  var hex = '',
    block;
  while (j < outputBlocks) {
    for (i = 0; i < blockCount && j < outputBlocks; ++i, ++j) {
      block = s[i];
      hex += HEX_CHARS[(block >> 4) & 0x0F] + HEX_CHARS[block & 0x0F] +
        HEX_CHARS[(block >> 12) & 0x0F] + HEX_CHARS[(block >> 8) & 0x0F] +
        HEX_CHARS[(block >> 20) & 0x0F] + HEX_CHARS[(block >> 16) & 0x0F] +
        HEX_CHARS[(block >> 28) & 0x0F] + HEX_CHARS[(block >> 24) & 0x0F];
    }
    if (j % blockCount == 0) {
      f(s);
      i = 0;
    }
  }
  if (extraBytes) {
    block = s[i];
    if (extraBytes > 0) {
      hex += HEX_CHARS[(block >> 4) & 0x0F] + HEX_CHARS[block & 0x0F];
    }
    if (extraBytes > 1) {
      hex += HEX_CHARS[(block >> 12) & 0x0F] + HEX_CHARS[(block >> 8) & 0x0F];
    }
    if (extraBytes > 2) {
      hex += HEX_CHARS[(block >> 20) & 0x0F] + HEX_CHARS[(block >> 16) & 0x0F];
    }
  }
  return hex;
};

Keccak.prototype.buffer = function() {
  this.finalize();

  var blockCount = this.blockCount,
    s = this.s,
    outputBlocks = this.outputBlocks,
    extraBytes = this.extraBytes,
    i = 0,
    j = 0;
  var bytes = this.outputBits >> 3;
  var buffer;
  if (extraBytes) {
    buffer = new ArrayBuffer((outputBlocks + 1) << 2);
  }
  else {
    buffer = new ArrayBuffer(bytes);
  }
  var array = new Uint32Array(buffer);
  while (j < outputBlocks) {
    for (i = 0; i < blockCount && j < outputBlocks; ++i, ++j) {
      array[j] = s[i];
    }
    if (j % blockCount == 0) {
      f(s);
    }
  }
  if (extraBytes) {
    array[i] = s[i];
    buffer = buffer.slice(0, bytes);
  }
  return buffer;
};

Keccak.prototype.digest = Keccak.prototype.array = function() {
  this.finalize();

  var blockCount = this.blockCount,
    s = this.s,
    outputBlocks = this.outputBlocks,
    extraBytes = this.extraBytes,
    i = 0,
    j = 0;
  var array = [],
    offset, block;
  while (j < outputBlocks) {
    for (i = 0; i < blockCount && j < outputBlocks; ++i, ++j) {
      offset = j << 2;
      block = s[i];
      array[offset] = block & 0xFF;
      array[offset + 1] = (block >> 8) & 0xFF;
      array[offset + 2] = (block >> 16) & 0xFF;
      array[offset + 3] = (block >> 24) & 0xFF;
    }
    if (j % blockCount == 0) {
      f(s);
    }
  }
  if (extraBytes) {
    offset = j << 2;
    block = s[i];
    if (extraBytes > 0) {
      array[offset] = block & 0xFF;
    }
    if (extraBytes > 1) {
      array[offset + 1] = (block >> 8) & 0xFF;
    }
    if (extraBytes > 2) {
      array[offset + 2] = (block >> 16) & 0xFF;
    }
  }
  return array;
};

var f = function(s) {
  var h, l, n, c0, c1, c2, c3, c4, c5, c6, c7, c8, c9,
    b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11, b12, b13, b14, b15, b16, b17,
    b18, b19, b20, b21, b22, b23, b24, b25, b26, b27, b28, b29, b30, b31, b32, b33,
    b34, b35, b36, b37, b38, b39, b40, b41, b42, b43, b44, b45, b46, b47, b48, b49;
  for (n = 0; n < 48; n += 2) {
    c0 = s[0] ^ s[10] ^ s[20] ^ s[30] ^ s[40];
    c1 = s[1] ^ s[11] ^ s[21] ^ s[31] ^ s[41];
    c2 = s[2] ^ s[12] ^ s[22] ^ s[32] ^ s[42];
    c3 = s[3] ^ s[13] ^ s[23] ^ s[33] ^ s[43];
    c4 = s[4] ^ s[14] ^ s[24] ^ s[34] ^ s[44];
    c5 = s[5] ^ s[15] ^ s[25] ^ s[35] ^ s[45];
    c6 = s[6] ^ s[16] ^ s[26] ^ s[36] ^ s[46];
    c7 = s[7] ^ s[17] ^ s[27] ^ s[37] ^ s[47];
    c8 = s[8] ^ s[18] ^ s[28] ^ s[38] ^ s[48];
    c9 = s[9] ^ s[19] ^ s[29] ^ s[39] ^ s[49];

    h = c8 ^ ((c2 << 1) | (c3 >>> 31));
    l = c9 ^ ((c3 << 1) | (c2 >>> 31));
    s[0] ^= h;
    s[1] ^= l;
    s[10] ^= h;
    s[11] ^= l;
    s[20] ^= h;
    s[21] ^= l;
    s[30] ^= h;
    s[31] ^= l;
    s[40] ^= h;
    s[41] ^= l;
    h = c0 ^ ((c4 << 1) | (c5 >>> 31));
    l = c1 ^ ((c5 << 1) | (c4 >>> 31));
    s[2] ^= h;
    s[3] ^= l;
    s[12] ^= h;
    s[13] ^= l;
    s[22] ^= h;
    s[23] ^= l;
    s[32] ^= h;
    s[33] ^= l;
    s[42] ^= h;
    s[43] ^= l;
    h = c2 ^ ((c6 << 1) | (c7 >>> 31));
    l = c3 ^ ((c7 << 1) | (c6 >>> 31));
    s[4] ^= h;
    s[5] ^= l;
    s[14] ^= h;
    s[15] ^= l;
    s[24] ^= h;
    s[25] ^= l;
    s[34] ^= h;
    s[35] ^= l;
    s[44] ^= h;
    s[45] ^= l;
    h = c4 ^ ((c8 << 1) | (c9 >>> 31));
    l = c5 ^ ((c9 << 1) | (c8 >>> 31));
    s[6] ^= h;
    s[7] ^= l;
    s[16] ^= h;
    s[17] ^= l;
    s[26] ^= h;
    s[27] ^= l;
    s[36] ^= h;
    s[37] ^= l;
    s[46] ^= h;
    s[47] ^= l;
    h = c6 ^ ((c0 << 1) | (c1 >>> 31));
    l = c7 ^ ((c1 << 1) | (c0 >>> 31));
    s[8] ^= h;
    s[9] ^= l;
    s[18] ^= h;
    s[19] ^= l;
    s[28] ^= h;
    s[29] ^= l;
    s[38] ^= h;
    s[39] ^= l;
    s[48] ^= h;
    s[49] ^= l;

    b0 = s[0];
    b1 = s[1];
    b32 = (s[11] << 4) | (s[10] >>> 28);
    b33 = (s[10] << 4) | (s[11] >>> 28);
    b14 = (s[20] << 3) | (s[21] >>> 29);
    b15 = (s[21] << 3) | (s[20] >>> 29);
    b46 = (s[31] << 9) | (s[30] >>> 23);
    b47 = (s[30] << 9) | (s[31] >>> 23);
    b28 = (s[40] << 18) | (s[41] >>> 14);
    b29 = (s[41] << 18) | (s[40] >>> 14);
    b20 = (s[2] << 1) | (s[3] >>> 31);
    b21 = (s[3] << 1) | (s[2] >>> 31);
    b2 = (s[13] << 12) | (s[12] >>> 20);
    b3 = (s[12] << 12) | (s[13] >>> 20);
    b34 = (s[22] << 10) | (s[23] >>> 22);
    b35 = (s[23] << 10) | (s[22] >>> 22);
    b16 = (s[33] << 13) | (s[32] >>> 19);
    b17 = (s[32] << 13) | (s[33] >>> 19);
    b48 = (s[42] << 2) | (s[43] >>> 30);
    b49 = (s[43] << 2) | (s[42] >>> 30);
    b40 = (s[5] << 30) | (s[4] >>> 2);
    b41 = (s[4] << 30) | (s[5] >>> 2);
    b22 = (s[14] << 6) | (s[15] >>> 26);
    b23 = (s[15] << 6) | (s[14] >>> 26);
    b4 = (s[25] << 11) | (s[24] >>> 21);
    b5 = (s[24] << 11) | (s[25] >>> 21);
    b36 = (s[34] << 15) | (s[35] >>> 17);
    b37 = (s[35] << 15) | (s[34] >>> 17);
    b18 = (s[45] << 29) | (s[44] >>> 3);
    b19 = (s[44] << 29) | (s[45] >>> 3);
    b10 = (s[6] << 28) | (s[7] >>> 4);
    b11 = (s[7] << 28) | (s[6] >>> 4);
    b42 = (s[17] << 23) | (s[16] >>> 9);
    b43 = (s[16] << 23) | (s[17] >>> 9);
    b24 = (s[26] << 25) | (s[27] >>> 7);
    b25 = (s[27] << 25) | (s[26] >>> 7);
    b6 = (s[36] << 21) | (s[37] >>> 11);
    b7 = (s[37] << 21) | (s[36] >>> 11);
    b38 = (s[47] << 24) | (s[46] >>> 8);
    b39 = (s[46] << 24) | (s[47] >>> 8);
    b30 = (s[8] << 27) | (s[9] >>> 5);
    b31 = (s[9] << 27) | (s[8] >>> 5);
    b12 = (s[18] << 20) | (s[19] >>> 12);
    b13 = (s[19] << 20) | (s[18] >>> 12);
    b44 = (s[29] << 7) | (s[28] >>> 25);
    b45 = (s[28] << 7) | (s[29] >>> 25);
    b26 = (s[38] << 8) | (s[39] >>> 24);
    b27 = (s[39] << 8) | (s[38] >>> 24);
    b8 = (s[48] << 14) | (s[49] >>> 18);
    b9 = (s[49] << 14) | (s[48] >>> 18);

    s[0] = b0 ^ (~b2 & b4);
    s[1] = b1 ^ (~b3 & b5);
    s[10] = b10 ^ (~b12 & b14);
    s[11] = b11 ^ (~b13 & b15);
    s[20] = b20 ^ (~b22 & b24);
    s[21] = b21 ^ (~b23 & b25);
    s[30] = b30 ^ (~b32 & b34);
    s[31] = b31 ^ (~b33 & b35);
    s[40] = b40 ^ (~b42 & b44);
    s[41] = b41 ^ (~b43 & b45);
    s[2] = b2 ^ (~b4 & b6);
    s[3] = b3 ^ (~b5 & b7);
    s[12] = b12 ^ (~b14 & b16);
    s[13] = b13 ^ (~b15 & b17);
    s[22] = b22 ^ (~b24 & b26);
    s[23] = b23 ^ (~b25 & b27);
    s[32] = b32 ^ (~b34 & b36);
    s[33] = b33 ^ (~b35 & b37);
    s[42] = b42 ^ (~b44 & b46);
    s[43] = b43 ^ (~b45 & b47);
    s[4] = b4 ^ (~b6 & b8);
    s[5] = b5 ^ (~b7 & b9);
    s[14] = b14 ^ (~b16 & b18);
    s[15] = b15 ^ (~b17 & b19);
    s[24] = b24 ^ (~b26 & b28);
    s[25] = b25 ^ (~b27 & b29);
    s[34] = b34 ^ (~b36 & b38);
    s[35] = b35 ^ (~b37 & b39);
    s[44] = b44 ^ (~b46 & b48);
    s[45] = b45 ^ (~b47 & b49);
    s[6] = b6 ^ (~b8 & b0);
    s[7] = b7 ^ (~b9 & b1);
    s[16] = b16 ^ (~b18 & b10);
    s[17] = b17 ^ (~b19 & b11);
    s[26] = b26 ^ (~b28 & b20);
    s[27] = b27 ^ (~b29 & b21);
    s[36] = b36 ^ (~b38 & b30);
    s[37] = b37 ^ (~b39 & b31);
    s[46] = b46 ^ (~b48 & b40);
    s[47] = b47 ^ (~b49 & b41);
    s[8] = b8 ^ (~b0 & b2);
    s[9] = b9 ^ (~b1 & b3);
    s[18] = b18 ^ (~b10 & b12);
    s[19] = b19 ^ (~b11 & b13);
    s[28] = b28 ^ (~b20 & b22);
    s[29] = b29 ^ (~b21 & b23);
    s[38] = b38 ^ (~b30 & b32);
    s[39] = b39 ^ (~b31 & b33);
    s[48] = b48 ^ (~b40 & b42);
    s[49] = b49 ^ (~b41 & b43);

    s[0] ^= RC[n];
    s[1] ^= RC[n + 1];
  }
}
module.exports = methods;
//   if (!root.JS_SHA3_TEST && NODE_JS) {
//     module.exports = methods;
//   } else if (root) {
//     for (var key in methods) {
//       root[key] = methods[key];
//     }
//   }

// module.exports = function(input, format, output) {
//   var msg = input;
//   if (format === 1) {
//     msg = input;
//   }
//   else if (format === 2) {
//     msg = h.int32Buffer2Bytes(input);
//   }
//   else {
//     msg = h.string2bytes(input);
//   }
//   var ctx = {};
//   if (output === 1) {
//     return h.bytes2Int32Buffer(new Keccak().update(msg).array());
//   }
//   else if (output === 2) {
//     return new Keccak().update(msg).array();
//   }
//   else {
//     return new Keccak().update(msg).hex();
//   }
// }
},{"./helper":203}],206:[function(require,module,exports){
/////////////////////////////////////
//////////////  Luffa ///////////////

//// Written by Quantum Explorer ////
////////// Dash Foundation //////////
/// Released under the MIT License //
/////////////////////////////////////

var op = require('./op');
var h = require('./helper');

var Luffa_BlockSize = 32;
var Luffa_VX = 5;
var Luffa_VY = 8;

var V_INIT = [
  [
    0x6d251e69, 0x44b051e0,
    0x4eaa6fb4, 0xdbf78465,
    0x6e292011, 0x90152df4,
    0xee058139, 0xdef610bb
  ],
  [
    0xc3b44b95, 0xd9d2f256,
    0x70eee9a0, 0xde099fa3,
    0x5d9b0557, 0x8fc944b3,
    0xcf1ccf0e, 0x746cd581
  ],
  [
    0xf7efc89d, 0x5dba5781,
    0x04016ce5, 0xad659c05,
    0x0306194f, 0x666d1836,
    0x24aa230a, 0x8b264ae7
  ],
  [
    0x858075d5, 0x36d79cce,
    0xe571f7d7, 0x204b1f67,
    0x35870c6a, 0x57e9e923,
    0x14bcb808, 0x7cde72ce
  ],
  [
    0x6c68e9be, 0x5ec41e22,
    0xc825b7c7, 0xaffb4363,
    0xf5df3999, 0x0fc688f1,
    0xb07224cc, 0x03e86cea
  ]
];

var RC00 = [
  0x303994a6, 0xc0e65299,
  0x6cc33a12, 0xdc56983e,
  0x1e00108f, 0x7800423d,
  0x8f5b7882, 0x96e1db12
];

var RC04 = [
  0xe0337818, 0x441ba90d,
  0x7f34d442, 0x9389217f,
  0xe5a8bce6, 0x5274baf4,
  0x26889ba7, 0x9a226e9d
];

var RC10 = [
  0xb6de10ed, 0x70f47aae,
  0x0707a3d4, 0x1c1e8f51,
  0x707a3d45, 0xaeb28562,
  0xbaca1589, 0x40a46f3e
];

var RC14 = [
  0x01685f3d, 0x05a17cf4,
  0xbd09caca, 0xf4272b28,
  0x144ae5cc, 0xfaa7ae2b,
  0x2e48f1c1, 0xb923c704
];

var RC20 = [
  0xfc20d9d2, 0x34552e25,
  0x7ad8818f, 0x8438764a,
  0xbb6de032, 0xedb780c8,
  0xd9847356, 0xa2c78434
];

var RC24 = [
  0xe25e72c1, 0xe623bb72,
  0x5c58a4a4, 0x1e38e2e7,
  0x78e38b9d, 0x27586719,
  0x36eda57f, 0x703aace7
];

var RC30 = [
  0xb213afa5, 0xc84ebe95,
  0x4e608a22, 0x56d858fe,
  0x343b138f, 0xd0ec4e3d,
  0x2ceb4882, 0xb3ad2208
];

var RC34 = [
  0xe028c9bf, 0x44756f91,
  0x7e8fce32, 0x956548be,
  0xfe191be2, 0x3cb226e5,
  0x5944a28e, 0xa1c4c355
];

var RC40 = [
  0xf0d2e9e3, 0xac11d7fa,
  0x1bcb66f2, 0x6f2d9bc9,
  0x78602649, 0x8edae952,
  0x3b6ba548, 0xedae9520
];

var RC44 = [
  0x5090d577, 0x2d1925ab,
  0xb46496ac, 0xd1925ab0,
  0x29131ab6, 0x0fc053c3,
  0x3f014f0c, 0xfc053c31
];

var M2 = function(d, s) {
  var tmp = s[7];
  d[7] = s[6];
  d[6] = s[5];
  d[5] = s[4];
  d[4] = s[3] ^ tmp;
  d[3] = s[2] ^ tmp;
  d[2] = s[1];
  d[1] = s[0] ^ tmp;
  d[0] = tmp;
}

//V is a table of states
var MI5 = function(buf, V) {
  var M = Array(8);
  var a = Array(8);
  var b = Array(8);
  M[0] = buf[0];
  M[1] = buf[1];
  M[2] = buf[2];
  M[3] = buf[3];
  M[4] = buf[4];
  M[5] = buf[5];
  M[6] = buf[6];
  M[7] = buf[7];
  op.xORTable(a, V[0], V[1], 8);
  op.xORTable(b, V[2], V[3], 8);
  op.xORTable(a, a, b, 8);
  op.xORTable(a, a, V[4], 8);
  M2(a, a);
  op.xORTable(V[0], a, V[0], 8);
  op.xORTable(V[1], a, V[1], 8);
  op.xORTable(V[2], a, V[2], 8);
  op.xORTable(V[3], a, V[3], 8);
  op.xORTable(V[4], a, V[4], 8);
  M2(b, V[0]);
  op.xORTable(b, b, V[1], 8);
  M2(V[1], V[1]);
  op.xORTable(V[1], V[1], V[2], 8);
  M2(V[2], V[2]);
  op.xORTable(V[2], V[2], V[3], 8);
  M2(V[3], V[3]);
  op.xORTable(V[3], V[3], V[4], 8);
  M2(V[4], V[4]);
  op.xORTable(V[4], V[4], V[0], 8);
  M2(V[0], b);
  op.xORTable(V[0], V[0], V[4], 8);
  M2(V[4], V[4]);
  op.xORTable(V[4], V[4], V[3], 8);
  M2(V[3], V[3]);
  op.xORTable(V[3], V[3], V[2], 8);
  M2(V[2], V[2]);
  op.xORTable(V[2], V[2], V[1], 8);
  M2(V[1], V[1]);
  op.xORTable(V[1], V[1], b, 8);
  op.xORTable(V[0], V[0], M, 8);
  M2(M, M);
  op.xORTable(V[1], V[1], M, 8);
  M2(M, M);
  op.xORTable(V[2], V[2], M, 8);
  M2(M, M);
  op.xORTable(V[3], V[3], M, 8);
  M2(M, M);
  op.xORTable(V[4], V[4], M, 8);
}

var TWEAK5 = function(V) {
  V[1][4] = op.rotl32(V[1][4], 1);
  V[1][5] = op.rotl32(V[1][5], 1);
  V[1][6] = op.rotl32(V[1][6], 1);
  V[1][7] = op.rotl32(V[1][7], 1);
  V[2][4] = op.rotl32(V[2][4], 2);
  V[2][5] = op.rotl32(V[2][5], 2);
  V[2][6] = op.rotl32(V[2][6], 2);
  V[2][7] = op.rotl32(V[2][7], 2);
  V[3][4] = op.rotl32(V[3][4], 3);
  V[3][5] = op.rotl32(V[3][5], 3);
  V[3][6] = op.rotl32(V[3][6], 3);
  V[3][7] = op.rotl32(V[3][7], 3);
  V[4][4] = op.rotl32(V[4][4], 4);
  V[4][5] = op.rotl32(V[4][5], 4);
  V[4][6] = op.rotl32(V[4][6], 4);
  V[4][7] = op.rotl32(V[4][7], 4);
}

var SUB_CRUMB = function(a0, a1, a2, a3) {
  var tmp;
  tmp = (a0);
  (a0) |= (a1);
  (a2) ^= (a3);
  (a1) = op.t32(~(a1));
  (a0) ^= (a3);
  (a3) &= tmp;
  (a1) ^= (a3);
  (a3) ^= (a2);
  (a2) &= (a0);
  (a0) = op.t32(~(a0));
  (a2) ^= (a1);
  (a1) |= (a3);
  tmp ^= (a1);
  (a3) ^= (a2);
  (a2) &= (a1);
  (a1) ^= (a0);
  (a0) = tmp;
  return [a0, a1, a2, a3];
}

var MIX_WORD = function(u, v) {
  (v) ^= (u);
  (u) = op.rotl32((u), 2) ^ (v);
  (v) = op.rotl32((v), 14) ^ (u);
  (u) = op.rotl32((u), 10) ^ (v);
  (v) = op.rotl32((v), 1);
  return [u,v];
}

var P5 = function(V) {
  TWEAK5(V);
  var tmp;
  for (var r = 0; r < 8; r++) {
    tmp = SUB_CRUMB(V[0][0], V[0][1], V[0][2], V[0][3]);
    V[0][0] = tmp[0];
    V[0][1] = tmp[1];
    V[0][2] = tmp[2];
    V[0][3] = tmp[3];
    tmp = SUB_CRUMB(V[0][5], V[0][6], V[0][7], V[0][4]);
    V[0][5] = tmp[0];
    V[0][6] = tmp[1];
    V[0][7] = tmp[2];
    V[0][4] = tmp[3];
    tmp = MIX_WORD(V[0][0], V[0][4]);
    V[0][0] = tmp[0];
    V[0][4] = tmp[1];
    tmp = MIX_WORD(V[0][1], V[0][5]);
    V[0][1] = tmp[0];
    V[0][5] = tmp[1];
    tmp = MIX_WORD(V[0][2], V[0][6]);
    V[0][2] = tmp[0];
    V[0][6] = tmp[1];
    tmp = MIX_WORD(V[0][3], V[0][7]);
    V[0][3] = tmp[0];
    V[0][7] = tmp[1];
    V[0][0] ^= RC00[r];
    V[0][4] ^= RC04[r];
  }
  for (var r = 0; r < 8; r++) {
    tmp = SUB_CRUMB(V[1][0], V[1][1], V[1][2], V[1][3]);
    V[1][0] = tmp[0];
    V[1][1] = tmp[1];
    V[1][2] = tmp[2];
    V[1][3] = tmp[3];
    tmp = SUB_CRUMB(V[1][5], V[1][6], V[1][7], V[1][4]);
    V[1][5] = tmp[0];
    V[1][6] = tmp[1];
    V[1][7] = tmp[2];
    V[1][4] = tmp[3];
    tmp = MIX_WORD(V[1][0], V[1][4]);
    V[1][0] = tmp[0];
    V[1][4] = tmp[1];
    tmp = MIX_WORD(V[1][1], V[1][5]);
    V[1][1] = tmp[0];
    V[1][5] = tmp[1];
    tmp = MIX_WORD(V[1][2], V[1][6]);
    V[1][2] = tmp[0];
    V[1][6] = tmp[1];
    tmp = MIX_WORD(V[1][3], V[1][7]);
    V[1][3] = tmp[0];
    V[1][7] = tmp[1];
    V[1][0] ^= RC10[r];
    V[1][4] ^= RC14[r];
  }
  for (var r = 0; r < 8; r++) {
    tmp = SUB_CRUMB(V[2][0], V[2][1], V[2][2], V[2][3]);
    V[2][0] = tmp[0];
    V[2][1] = tmp[1];
    V[2][2] = tmp[2];
    V[2][3] = tmp[3];
    tmp = SUB_CRUMB(V[2][5], V[2][6], V[2][7], V[2][4]);
    V[2][5] = tmp[0];
    V[2][6] = tmp[1];
    V[2][7] = tmp[2];
    V[2][4] = tmp[3];
    tmp = MIX_WORD(V[2][0], V[2][4]);
    V[2][0] = tmp[0];
    V[2][4] = tmp[1];
    tmp = MIX_WORD(V[2][1], V[2][5]);
    V[2][1] = tmp[0];
    V[2][5] = tmp[1];
    tmp = MIX_WORD(V[2][2], V[2][6]);
    V[2][2] = tmp[0];
    V[2][6] = tmp[1];
    tmp = MIX_WORD(V[2][3], V[2][7]);
    V[2][3] = tmp[0];
    V[2][7] = tmp[1];
    V[2][0] ^= RC20[r];
    V[2][4] ^= RC24[r];
  }
  for (var r = 0; r < 8; r++) {
    tmp = SUB_CRUMB(V[3][0], V[3][1], V[3][2], V[3][3]);
    V[3][0] = tmp[0];
    V[3][1] = tmp[1];
    V[3][2] = tmp[2];
    V[3][3] = tmp[3];
    tmp = SUB_CRUMB(V[3][5], V[3][6], V[3][7], V[3][4]);
    V[3][5] = tmp[0];
    V[3][6] = tmp[1];
    V[3][7] = tmp[2];
    V[3][4] = tmp[3];
    tmp = MIX_WORD(V[3][0], V[3][4]);
    V[3][0] = tmp[0];
    V[3][4] = tmp[1];
    tmp = MIX_WORD(V[3][1], V[3][5]);
    V[3][1] = tmp[0];
    V[3][5] = tmp[1];
    tmp = MIX_WORD(V[3][2], V[3][6]);
    V[3][2] = tmp[0];
    V[3][6] = tmp[1];
    tmp = MIX_WORD(V[3][3], V[3][7]);
    V[3][3] = tmp[0];
    V[3][7] = tmp[1];
    V[3][0] ^= RC30[r];
    V[3][4] ^= RC34[r];
  }
  for (var r = 0; r < 8; r++) {
    tmp = SUB_CRUMB(V[4][0], V[4][1], V[4][2], V[4][3]);
    V[4][0] = tmp[0];
    V[4][1] = tmp[1];
    V[4][2] = tmp[2];
    V[4][3] = tmp[3];
    tmp = SUB_CRUMB(V[4][5], V[4][6], V[4][7], V[4][4]);
    V[4][5] = tmp[0];
    V[4][6] = tmp[1];
    V[4][7] = tmp[2];
    V[4][4] = tmp[3];
    tmp = MIX_WORD(V[4][0], V[4][4]);
    V[4][0] = tmp[0];
    V[4][4] = tmp[1];
    tmp = MIX_WORD(V[4][1], V[4][5]);
    V[4][1] = tmp[0];
    V[4][5] = tmp[1];
    tmp = MIX_WORD(V[4][2], V[4][6]);
    V[4][2] = tmp[0];
    V[4][6] = tmp[1];
    tmp = MIX_WORD(V[4][3], V[4][7]);
    V[4][3] = tmp[0];
    V[4][7] = tmp[1];
    V[4][0] ^= RC40[r];
    V[4][4] ^= RC44[r];
  }
}


var luffa5 = function(ctx, data) {
  var buf, ptr;
  //create a local copy of states
  var V = new Array(Luffa_VX);
  for (var i = 0; i < Luffa_VX; i++) {
    V[i] = new Array(Luffa_VY);
  }
  buf = ctx.buffer;
  ptr = ctx.ptr;
  var len = data.length;
  if (len < ctx.buffer.length - ptr) {
    op.bufferInsert(buf, ptr, data, data.length);
    ptr += data.length;
    ctx.ptr = ptr;
    return;
  }
  //perform a deep copy of current state
  for (var i = 0; i < Luffa_VX; i++) {
    for (var j = 0; j < Luffa_VY; j++) {
      V[i][j] = ctx.state[i][j];
    }
  }
  while (len > 0) {
    var clen = ctx.buffer.length - ptr;
    if (clen > len) clen = len;
    op.bufferInsert(buf, ptr, data, clen);
    ptr += clen;
    data = data.slice(clen);
    len -= clen;
    if (ptr === ctx.buffer.length) {
      var int32Buf = h.bytes2Int32Buffer(buf);
      MI5(int32Buf, V);
      P5(V);
      ptr = 0;
    }
  }
  ctx.state = V;
  ctx.ptr = ptr;
}

var luffa5Close = function(ctx, ub, n) {
  var buf, out, ptr, z, i;
  var V = new Array(Luffa_VX);
  for (var i = 0; i < Luffa_VX; i++) {
    V[i] = new Array(Luffa_VY);
  }
  buf = ctx.buffer;
  ptr = ctx.ptr;
  z = 0x80 >> n;
  buf[ptr++] = ((ub & -z) | z) & 0xFF;
  op.bufferSet(buf, ptr, 0, ctx.buffer.length - ptr);
  for (var i = 0; i < Luffa_VX; i++) {
    for (var j = 0; j < Luffa_VY; j++) {
      V[i][j] = ctx.state[i][j];
    }
  }
  var out = new Array(16);
  for (i = 0; i < 3; i++) {
    var int32Buf = h.bytes2Int32Buffer(buf);
    MI5(int32Buf, V);
    P5(V);
    switch (i) {
      case 0:
        op.bufferSet(buf, 0, 0, ctx.buffer.length);
        break;
      case 1:
        out[0] = V[0][0] ^ V[1][0] ^ V[2][0] ^ V[3][0] ^ V[4][0];
        out[1] = V[0][1] ^ V[1][1] ^ V[2][1] ^ V[3][1] ^ V[4][1];
        out[2] = V[0][2] ^ V[1][2] ^ V[2][2] ^ V[3][2] ^ V[4][2];
        out[3] = V[0][3] ^ V[1][3] ^ V[2][3] ^ V[3][3] ^ V[4][3];
        out[4] = V[0][4] ^ V[1][4] ^ V[2][4] ^ V[3][4] ^ V[4][4];
        out[5] = V[0][5] ^ V[1][5] ^ V[2][5] ^ V[3][5] ^ V[4][5];
        out[6] = V[0][6] ^ V[1][6] ^ V[2][6] ^ V[3][6] ^ V[4][6];
        out[7] = V[0][7] ^ V[1][7] ^ V[2][7] ^ V[3][7] ^ V[4][7];
        break;
      case 2:
        out[8] = V[0][0] ^ V[1][0] ^ V[2][0] ^ V[3][0] ^ V[4][0];
        out[9] = V[0][1] ^ V[1][1] ^ V[2][1] ^ V[3][1] ^ V[4][1];
        out[10] = V[0][2] ^ V[1][2] ^ V[2][2] ^ V[3][2] ^ V[4][2];
        out[11] = V[0][3] ^ V[1][3] ^ V[2][3] ^ V[3][3] ^ V[4][3];
        out[12] = V[0][4] ^ V[1][4] ^ V[2][4] ^ V[3][4] ^ V[4][4];
        out[13] = V[0][5] ^ V[1][5] ^ V[2][5] ^ V[3][5] ^ V[4][5];
        out[14] = V[0][6] ^ V[1][6] ^ V[2][6] ^ V[3][6] ^ V[4][6];
        out[15] = V[0][7] ^ V[1][7] ^ V[2][7] ^ V[3][7] ^ V[4][7];
        break;
    }
  }
  return out;
}

module.exports = function(input, format, output) {
  var msg;
  if (format === 1) {
    msg = input;
  }
  else if (format === 2) {
    msg = h.int32Buffer2Bytes(input);
  }
  else {
    msg = h.string2bytes(input);
  }
  var ctx = {};
  ctx.state = V_INIT;
  ctx.ptr = 0;
  ctx.buffer = new Array(Luffa_BlockSize);
  luffa5(ctx, msg);
  var r = luffa5Close(ctx, 0, 0);
  var out;
  if (output === 2) {
    out = r;
  }
  else if (output === 1) {
    out = h.int32Buffer2Bytes(r)
  }
  else {
    out = h.int32ArrayToHexString(r)
  }
  return out;
}
},{"./helper":203,"./op":207}],207:[function(require,module,exports){
'use strict';
//the right shift is important, it has to do with 32 bit operations in javascript, it will make things faster
function u64(h, l) {
  this.hi = h >>> 0;
  this.lo = l >>> 0;
}

u64.prototype.set = function(oWord) {
  this.lo = oWord.lo;
  this.hi = oWord.hi;
}

u64.prototype.add = function(oWord) {
  var lowest, lowMid, highMid, highest; //four parts of the whole 64 bit number..

  //need to add the respective parts from each number and the carry if on is present..
  lowest = (this.lo & 0XFFFF) + (oWord.lo & 0XFFFF);
  lowMid = (this.lo >>> 16) + (oWord.lo >>> 16) + (lowest >>> 16);
  highMid = (this.hi & 0XFFFF) + (oWord.hi & 0XFFFF) + (lowMid >>> 16);
  highest = (this.hi >>> 16) + (oWord.hi >>> 16) + (highMid >>> 16);

  //now set the hgih and the low accordingly..
  this.lo = (lowMid << 16) | (lowest & 0XFFFF);
  this.hi = (highest << 16) | (highMid & 0XFFFF);

  return this; //for chaining..
};

u64.prototype.addOne = function() {
  if (this.lo === -1 || this.lo === 0xFFFFFFFF) {
    this.lo = 0;
    this.hi++;
  } else {
    this.lo++;
  }
}

u64.prototype.plus = function(oWord) {
  var c = new u64(0, 0);
  var lowest, lowMid, highMid, highest; //four parts of the whole 64 bit number..

  //need to add the respective parts from each number and the carry if on is present..
  lowest = (this.lo & 0XFFFF) + (oWord.lo & 0XFFFF);
  lowMid = (this.lo >>> 16) + (oWord.lo >>> 16) + (lowest >>> 16);
  highMid = (this.hi & 0XFFFF) + (oWord.hi & 0XFFFF) + (lowMid >>> 16);
  highest = (this.hi >>> 16) + (oWord.hi >>> 16) + (highMid >>> 16);

  //now set the hgih and the low accordingly..
  c.lo = (lowMid << 16) | (lowest & 0XFFFF);
  c.hi = (highest << 16) | (highMid & 0XFFFF);

  return c; //for chaining..
};

u64.prototype.not = function() {
  return new u64(~this.hi, ~this.lo);
}

u64.prototype.one = function() {
  return new u64(0x0, 0x1);
}

u64.prototype.zero = function() {
  return new u64(0x0, 0x0);
}

u64.prototype.neg = function() {
  return this.not().plus(this.one());
}

u64.prototype.minus = function(oWord) {
  return this.plus(oWord.neg());
};

u64.prototype.isZero = function() {
  return (this.lo === 0) && (this.hi === 0);
}

function isLong(obj) {
  return (obj && obj["__isLong__"]) === true;
}

function fromNumber(value) {
  if (isNaN(value) || !isFinite(value))
    return this.zero();
  var pow32 = (1 << 32);
  return new u64((value % pow32) | 0, (value / pow32) | 0);
}

u64.prototype.multiply = function(multiplier) {
  if (this.isZero())
    return this.zero();
  if (!isLong(multiplier))
    multiplier = fromNumber(multiplier);
  if (multiplier.isZero())
    return this.zero();

  // Divide each long into 4 chunks of 16 bits, and then add up 4x4 products.
  // We can skip products that would overflow.

  var a48 = this.hi >>> 16;
  var a32 = this.hi & 0xFFFF;
  var a16 = this.lo >>> 16;
  var a00 = this.lo & 0xFFFF;

  var b48 = multiplier.hi >>> 16;
  var b32 = multiplier.hi & 0xFFFF;
  var b16 = multiplier.lo >>> 16;
  var b00 = multiplier.lo & 0xFFFF;

  var c48 = 0,
    c32 = 0,
    c16 = 0,
    c00 = 0;
  c00 += a00 * b00;
  c16 += c00 >>> 16;
  c00 &= 0xFFFF;
  c16 += a16 * b00;
  c32 += c16 >>> 16;
  c16 &= 0xFFFF;
  c16 += a00 * b16;
  c32 += c16 >>> 16;
  c16 &= 0xFFFF;
  c32 += a32 * b00;
  c48 += c32 >>> 16;
  c32 &= 0xFFFF;
  c32 += a16 * b16;
  c48 += c32 >>> 16;
  c32 &= 0xFFFF;
  c32 += a00 * b32;
  c48 += c32 >>> 16;
  c32 &= 0xFFFF;
  c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
  c48 &= 0xFFFF;
  return new u64((c48 << 16) | c32, (c16 << 16) | c00);
};

u64.prototype.shiftLeft = function(bits) {
  bits = bits % 64;
  var c = new u64(0, 0);
  if (bits === 0) {
    return this.clone();
  } else if (bits >= 32) {
    c.lo = 0;
    c.hi = this.lo << (bits - 32);
  }
  else {
    var toMoveUp = this.lo >>> 32 - bits;
    c.lo = this.lo << bits;
    c.hi = (this.hi << bits) | toMoveUp;
  }
  return c; //for chaining..
};
//Shifts this word by the given number of bits to the right (max 32)..
u64.prototype.shiftRight = function(bits) {
  bits = bits % 64;
  var c = new u64(0, 0);
  if (bits === 0) {
    return this.clone();
  } else if (bits >= 32) {
    c.hi = 0;
    c.lo = this.hi >>> (bits - 32);
  }
  else {
    var bitsOff32 = 32 - bits,
      toMoveDown = this.hi << bitsOff32 >>> bitsOff32;
    c.hi = this.hi >>> bits;
    c.lo = this.lo >>> bits | (toMoveDown << bitsOff32);
  }
  return c; //for chaining..
};
//Rotates the bits of this word round to the left (max 32)..
u64.prototype.rotateLeft = function(bits) {
  if (bits > 32) {
    return this.rotateRight(64 - bits);
  }
  var c = new u64(0, 0);
  var newHigh;
  if (bits === 0) {
    c.lo = this.lo >>> 0;
    c.hi = this.hi >>> 0;
  } else if (bits === 32) { //just switch high and low over in this case..
    newHigh = this.lo;
    c.lo = this.hi;
    c.hi = newHigh;
  }
  else {
    newHigh = (this.hi << bits) | (this.lo >>> (32 - bits));
    c.lo = (this.lo << bits) | (this.hi >>> (32 - bits));
    c.hi = newHigh;
  }
  return c; //for chaining..
};
//Rotates the bits of this word round to the right (max 32)..
u64.prototype.rotateRight = function(bits) {
  if (bits > 32) {
    return this.rotateLeft(64 - bits);
  }
  var c = new u64(0, 0);
  var newHigh;
  if (bits === 0) {
    c.lo = this.lo >>> 0;
    c.hi = this.hi >>> 0;
  } else if (bits === 32) { //just switch high and low over in this case..
    newHigh = this.lo;
    c.lo = this.hi;
    c.hi = newHigh;
  }
  else {
    newHigh = (this.lo << (32 - bits)) | (this.hi >>> bits);
    c.lo = (this.hi << (32 - bits)) | (this.lo >>> bits);
    c.hi = newHigh;
  }
  return c; //for chaining..
};
//Xors this word with the given other..
u64.prototype.xor = function(oWord) {
  var c = new u64(0, 0);
  c.hi = this.hi ^ oWord.hi;
  c.lo = this.lo ^ oWord.lo;
  return c; //for chaining..
};
//Ands this word with the given other..
u64.prototype.and = function(oWord) {
  var c = new u64(0, 0);
  c.hi = this.hi & oWord.hi;
  c.lo = this.lo & oWord.lo;
  return c; //for chaining..
};
//Converts this word to a string representing it's encoding as 4 UTF2 16 bit
//characters..
u64.prototype.toString = function() {
  var str = "",
    high = this.hi,
    low = this.lo;
  str += String.fromCharCode(high >>> 16);
  str += String.fromCharCode(high << 16 >>> 16);
  str += String.fromCharCode(low >>> 16);
  str += String.fromCharCode(low << 16 >>> 16);
  return str;
};

u64.prototype.toBinaryString = function(sep) {
  var str = "",
    high = this.hi,
    low = this.lo;
  var a = new Array(4);
  a[0] = (high >>> 16).toString(2);
  a[1] = (high << 16 >>> 16).toString(2);
  a[2] = (low >>> 16).toString(2);
  a[3] = (low << 16 >>> 16).toString(2);
  for (var i = 0; i < 4; i++) {
    while (a[i].length < 16) {
      a[i] = '0' + a[i];
    }
  }
  if (!sep) sep = '';
  return a.join(sep);
};
//Creates a deep copy of this Word..
u64.prototype.clone = function() {
  return new u64(this.hi, this.lo);
};
//Given a string a a starting index, returns a new Word which encodes the
//four characters starting from index up to index + 3.
u64.fromChars = function(str, index) {
  var low, high;
  //pairs of UTF2 chars need to be stored as one 32 bit int..
  high = (str.charCodeAt(index) << 16) + str.charCodeAt(index + 1);
  low = (str.charCodeAt(index + 2) << 16) + str.charCodeAt(index + 3);
  return new u64(high, low);
};

u64.prototype.setxor64 = function() {
  var a = arguments;
  for (var i = 0, len = a.length; i < len; i++) {
    this.hi ^= a[i].hi;
    this.lo ^= a[i].lo;
  }
  return this;
}

module.exports.u64 = u64;

module.exports.add64 = function(a, b) {
  var lowest, lowMid, highMid, highest; //four parts of the whole 64 bit number..

  //need to add the respective parts from each number and the carry if on is present..
  lowest = (a.lo & 0XFFFF) + (b.lo & 0XFFFF);
  lowMid = (a.lo >>> 16) + (b.lo >>> 16) + (lowest >>> 16);
  highMid = (a.hi & 0XFFFF) + (b.hi & 0XFFFF) + (lowMid >>> 16);
  highest = (a.hi >>> 16) + (b.hi >>> 16) + (highMid >>> 16);

  var r = new this.u64((highest << 16) | (highMid & 0XFFFF), (lowMid << 16) | (lowest & 0XFFFF));

  return r;
};

module.exports.xor64 = function() {
  var a = arguments,
    h = a[0].hi,
    l = a[0].lo;
  for (var i = 1, len = a.length; i < len; i++) {
    h ^= a[i].hi;
    l ^= a[i].lo;
  }
  return new this.u64(h, l);
}

module.exports.clone64Array = function(array) {
  var a = [];
  for (var i in array) {
    a.push(array[i].clone());
  }
  return a;
}

//this shouldn't be a problem, but who knows in the future javascript might support 64bits
module.exports.t32 = function(x) {
  return (x & 0xFFFFFFFF)
}

module.exports.rotl32 = function(x, c) {
  return (((x) << (c)) | ((x) >>> (32 - (c)))) & (0xFFFFFFFF);
}

module.exports.rotr32 = function(x, c) {
  return this.rotl32(x, (32 - (c)));
}

module.exports.swap32 = function(val) {
  return ((val & 0xFF) << 24) |
    ((val & 0xFF00) << 8) |
    ((val >>> 8) & 0xFF00) |
    ((val >>> 24) & 0xFF);
}

module.exports.swap32Array = function(a) {
  //can't do this with map because of support for IE8 (Don't hate me plz).
  var r = Array(a.length);
  for (var i in a) {
    r[i] = (this.swap32(a[i]));
  }
  return r;
}
//for skein

module.exports.rotl64 = function(x, c) {
  var h0 = 0,
    l0 = 0,
    h1 = 0,
    l1 = 0,
    c1 = 64 - c;

  // shift left
  if (c < 32) {
    h0 = (x.hi << c) | ((x.lo & (((1 << c) - 1) | 0) << (32 - c)) >>> (32 - c));
    l0 = x.lo << c;
  }
  else {
    h0 = x.lo << (c - 32);
  }

  // shift right
  if (c1 < 32) {
    h1 = x.hi >>> c1;
    l1 = (x.lo >>> c1) | (x.hi & (((1 << c1) - 1) | 0)) << (32 - c1);
  }
  else {
    l1 = x.hi >>> (c1 - 32);
  }

  return new this.u64(h0 | h1, l0 | l1);
}

module.exports.xnd64 = function(x, y, z) {
  return new this.u64(x.hi ^ ((~y.hi) & z.hi), x.lo ^ ((~y.lo) & z.lo));
}

module.exports.load64 = function(x, i) {
  var l = x[i] | (x[i + 1] << 8) | (x[i + 2] << 16) | (x[i + 3] << 24);
  var h = x[i + 4] | (x[i + 5] << 8) | (x[i + 6] << 16) | (x[i + 7] << 24);
  return new this.u64(h, l);
}

module.exports.bufferInsert = function(buffer, bufferOffset, data, len) {
  for (var i = 0; i < len; i++) {
    buffer[i + bufferOffset] = data[i];
  }
}

module.exports.bufferInsert64 = function(buffer, bufferOffset, data, len) {
  for (var i = len - 1; i >= 0; i--) {
    buffer[i + bufferOffset] = data[i].clone();
  }
}

module.exports.buffer2Insert = function(buffer, bufferOffset, bufferOffset2, data, len, len2) {
  for (var i = len - 1; i >= 0; i--) {
    for (var j = len2 - 1; j >= 0; j--) {
      buffer[i + bufferOffset][j + bufferOffset2] = data[i][j];
    }
  }
}


module.exports.bufferInsertBackwards = function(buffer, bufferOffset, data, len) {
  for (var i = len - 1; i >= 0; i--) {
    buffer[i + bufferOffset] = data[len - 1 - i];
  }
}

module.exports.bufferSet = function(buffer, bufferOffset, value, len) {
  for (var i = len - 1; i >= 0; i--) {
    buffer[i + bufferOffset] = value;
  }
}

module.exports.bufferXORInsert = function(buffer, bufferOffset, data, dataOffset, len) {
  for (var i = 0; i < len; i++) {
    buffer[i + bufferOffset] ^= data[i + dataOffset];
  }
}

module.exports.xORTable = function(d, s1, s2, len) {
  for (var i = 0; i < len; i++) {
    d[i] = s1[i] ^ s2[i];
  }
}
},{}],208:[function(require,module,exports){
/////////////////////////////////////
////////////  Shavite ///////////////

//// Written by Quantum Explorer ////
////////// Dash Foundation //////////
/// Released under the MIT License //
/////////////////////////////////////

var op = require('./op');
var h = require('./helper');
var aes = require('./aes');

var Shavite_BlockSize = 128;
var Simd_HSize = 4;

var IV512 = [
  0x72FCCDD8, 0x79CA4727, 0x128A077B, 0x40D55AEC,
  0xD1901A06, 0x430AE307, 0xB29F5CD1, 0xDF07FBFC,
  0x8E45D73D, 0x681AB538, 0xBDE86578, 0xDD577E47,
  0xE275EADE, 0x502D9FCD, 0xB9357178, 0x022A4B9A,
];

var AES_ROUND_NOKEY = function(x) {
  var t = new Array(4);
  op.bufferInsert(t, 0, x, 4);
  aes.AES_ROUND_NOKEY_LE(t, x);
  return x;
}

var KEY_EXPAND_ELT = function(k, start, end) {
  var kt = k.slice(start, end);
  var l = AES_ROUND_NOKEY([kt[1], kt[2], kt[3], kt[0]]);
  op.bufferInsert(k, start, l, end - start);
}

var c512 = function(ctx, msg) {
  var m = h.bytes2Int32Buffer(msg);
  var p = Array(16);
  var x = Array(4);
  var rk = Array(32);
  var r;

  op.bufferInsert(p, 0, ctx.h, 16);
  /* round 0 */
  rk[0] = op.swap32(m[0]);
  x[0] = p[4] ^ rk[0];
  rk[1] = op.swap32(m[1]);
  x[1] = p[5] ^ rk[1];
  rk[2] = op.swap32(m[2]);
  x[2] = p[6] ^ rk[2];
  rk[3] = op.swap32(m[3]);
  x[3] = p[7] ^ rk[3];
  AES_ROUND_NOKEY(x);
  rk[4] = op.swap32(m[4]);
  x[0] ^= rk[4];
  rk[5] = op.swap32(m[5]);
  x[1] ^= rk[5];
  rk[6] = op.swap32(m[6]);
  x[2] ^= rk[6];
  rk[7] = op.swap32(m[7]);
  x[3] ^= rk[7];
  AES_ROUND_NOKEY(x);
  rk[8] = op.swap32(m[8]);
  x[0] ^= rk[8];
  rk[9] = op.swap32(m[9]);
  x[1] ^= rk[9];
  rk[10] = op.swap32(m[10]);
  x[2] ^= rk[10];
  rk[11] = op.swap32(m[11]);
  x[3] ^= rk[11];
  AES_ROUND_NOKEY(x);
  rk[12] = op.swap32(m[12]);
  x[0] ^= rk[12];
  rk[13] = op.swap32(m[13]);
  x[1] ^= rk[13];
  rk[14] = op.swap32(m[14]);
  x[2] ^= rk[14];
  rk[15] = op.swap32(m[15]);
  x[3] ^= rk[15];
  AES_ROUND_NOKEY(x);
  p[0] ^= x[0];
  p[1] ^= x[1];
  p[2] ^= x[2];
  p[3] ^= x[3];
  rk[16] = op.swap32(m[16]);
  x[0] = p[12] ^ rk[16];
  rk[17] = op.swap32(m[17]);
  x[1] = p[13] ^ rk[17];
  rk[18] = op.swap32(m[18]);
  x[2] = p[14] ^ rk[18];
  rk[19] = op.swap32(m[19]);
  x[3] = p[15] ^ rk[19];
  AES_ROUND_NOKEY(x);
  rk[20] = op.swap32(m[20]);
  x[0] ^= rk[20];
  rk[21] = op.swap32(m[21]);
  x[1] ^= rk[21];
  rk[22] = op.swap32(m[22]);
  x[2] ^= rk[22];
  rk[23] = op.swap32(m[23]);
  x[3] ^= rk[23];
  AES_ROUND_NOKEY(x);
  rk[24] = op.swap32(m[24]);
  x[0] ^= rk[24];
  rk[25] = op.swap32(m[25]);
  x[1] ^= rk[25];
  rk[26] = op.swap32(m[26]);
  x[2] ^= rk[26];
  rk[27] = op.swap32(m[27]);
  x[3] ^= rk[27];
  AES_ROUND_NOKEY(x);
  rk[28] = op.swap32(m[28]);
  x[0] ^= rk[28];
  rk[29] = op.swap32(m[29]);
  x[1] ^= rk[29];
  rk[30] = op.swap32(m[30]);
  x[2] ^= rk[30];
  rk[31] = op.swap32(m[31]);
  x[3] ^= rk[31];
  AES_ROUND_NOKEY(x);
  p[8] ^= x[0];
  p[9] ^= x[1];
  p[10] ^= x[2];
  p[11] ^= x[3];

  for (r = 0; r < 3; r++) {
    /* round 1, 5, 9 */
    KEY_EXPAND_ELT(rk, 0, 4);
    rk[0] ^= rk[28];
    rk[1] ^= rk[29];
    rk[2] ^= rk[30];
    rk[3] ^= rk[31];
    if (r == 0) {
      rk[0] ^= ctx.count[0];
      rk[1] ^= ctx.count[1];
      rk[2] ^= ctx.count[2];
      rk[3] ^= op.t32(~ctx.count[3]);
    }
    x[0] = p[0] ^ rk[0];
    x[1] = p[1] ^ rk[1];
    x[2] = p[2] ^ rk[2];
    x[3] = p[3] ^ rk[3];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 4, 8);
    rk[4] ^= rk[0];
    rk[5] ^= rk[1];
    rk[6] ^= rk[2];
    rk[7] ^= rk[3];
    if (r == 1) {
      rk[4] ^= ctx.count[3];
      rk[5] ^= ctx.count[2];
      rk[6] ^= ctx.count[1];
      rk[7] ^= op.t32(~ctx.count[0]);
    }
    x[0] ^= rk[4];
    x[1] ^= rk[5];
    x[2] ^= rk[6];
    x[3] ^= rk[7];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 8, 12);
    rk[8] ^= rk[4];
    rk[9] ^= rk[5];
    rk[10] ^= rk[6];
    rk[11] ^= rk[7];
    x[0] ^= rk[8];
    x[1] ^= rk[9];
    x[2] ^= rk[10];
    x[3] ^= rk[11];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 12, 16);
    rk[12] ^= rk[8];
    rk[13] ^= rk[9];
    rk[14] ^= rk[10];
    rk[15] ^= rk[11];
    x[0] ^= rk[12];
    x[1] ^= rk[13];
    x[2] ^= rk[14];
    x[3] ^= rk[15];
    AES_ROUND_NOKEY(x);
    p[12] ^= x[0];
    p[13] ^= x[1];
    p[14] ^= x[2];
    p[15] ^= x[3];
    KEY_EXPAND_ELT(rk, 16, 20);
    rk[16] ^= rk[12];
    rk[17] ^= rk[13];
    rk[18] ^= rk[14];
    rk[19] ^= rk[15];
    x[0] = p[8] ^ rk[16];
    x[1] = p[9] ^ rk[17];
    x[2] = p[10] ^ rk[18];
    x[3] = p[11] ^ rk[19];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 20, 24);
    rk[20] ^= rk[16];
    rk[21] ^= rk[17];
    rk[22] ^= rk[18];
    rk[23] ^= rk[19];
    x[0] ^= rk[20];
    x[1] ^= rk[21];
    x[2] ^= rk[22];
    x[3] ^= rk[23];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 24, 28);
    rk[24] ^= rk[20];
    rk[25] ^= rk[21];
    rk[26] ^= rk[22];
    rk[27] ^= rk[23];
    x[0] ^= rk[24];
    x[1] ^= rk[25];
    x[2] ^= rk[26];
    x[3] ^= rk[27];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 28, 32);
    rk[28] ^= rk[24];
    rk[29] ^= rk[25];
    rk[30] ^= rk[26];
    rk[31] ^= rk[27];
    if (r == 2) {
      rk[28] ^= ctx.count[2];
      rk[29] ^= ctx.count[3];
      rk[30] ^= ctx.count[0];
      rk[31] ^= op.t32(~ctx.count[1]);
    }
    x[0] ^= rk[28];
    x[1] ^= rk[29];
    x[2] ^= rk[30];
    x[3] ^= rk[31];
    AES_ROUND_NOKEY(x);
    p[4] ^= x[0];
    p[5] ^= x[1];
    p[6] ^= x[2];
    p[7] ^= x[3];
    /* round 2, 6, 10 */
    rk[0] ^= rk[25];
    x[0] = p[12] ^ rk[0];
    rk[1] ^= rk[26];
    x[1] = p[13] ^ rk[1];
    rk[2] ^= rk[27];
    x[2] = p[14] ^ rk[2];
    rk[3] ^= rk[28];
    x[3] = p[15] ^ rk[3];
    AES_ROUND_NOKEY(x);
    rk[4] ^= rk[29];
    x[0] ^= rk[4];
    rk[5] ^= rk[30];
    x[1] ^= rk[5];
    rk[6] ^= rk[31];
    x[2] ^= rk[6];
    rk[7] ^= rk[0];
    x[3] ^= rk[7];
    AES_ROUND_NOKEY(x);
    rk[8] ^= rk[1];
    x[0] ^= rk[8];
    rk[9] ^= rk[2];
    x[1] ^= rk[9];
    rk[10] ^= rk[3];
    x[2] ^= rk[10];
    rk[11] ^= rk[4];
    x[3] ^= rk[11];
    AES_ROUND_NOKEY(x);
    rk[12] ^= rk[5];
    x[0] ^= rk[12];
    rk[13] ^= rk[6];
    x[1] ^= rk[13];
    rk[14] ^= rk[7];
    x[2] ^= rk[14];
    rk[15] ^= rk[8];
    x[3] ^= rk[15];
    AES_ROUND_NOKEY(x);
    p[8] ^= x[0];
    p[9] ^= x[1];
    p[10] ^= x[2];
    p[11] ^= x[3];
    rk[16] ^= rk[9];
    x[0] = p[4] ^ rk[16];
    rk[17] ^= rk[10];
    x[1] = p[5] ^ rk[17];
    rk[18] ^= rk[11];
    x[2] = p[6] ^ rk[18];
    rk[19] ^= rk[12];
    x[3] = p[7] ^ rk[19];
    AES_ROUND_NOKEY(x);
    rk[20] ^= rk[13];
    x[0] ^= rk[20];
    rk[21] ^= rk[14];
    x[1] ^= rk[21];
    rk[22] ^= rk[15];
    x[2] ^= rk[22];
    rk[23] ^= rk[16];
    x[3] ^= rk[23];
    AES_ROUND_NOKEY(x);
    rk[24] ^= rk[17];
    x[0] ^= rk[24];
    rk[25] ^= rk[18];
    x[1] ^= rk[25];
    rk[26] ^= rk[19];
    x[2] ^= rk[26];
    rk[27] ^= rk[20];
    x[3] ^= rk[27];
    AES_ROUND_NOKEY(x);
    rk[28] ^= rk[21];
    x[0] ^= rk[28];
    rk[29] ^= rk[22];
    x[1] ^= rk[29];
    rk[30] ^= rk[23];
    x[2] ^= rk[30];
    rk[31] ^= rk[24];
    x[3] ^= rk[31];
    AES_ROUND_NOKEY(x);
    p[0] ^= x[0];
    p[1] ^= x[1];
    p[2] ^= x[2];
    p[3] ^= x[3];
    /* round 3, 7, 11 */
    KEY_EXPAND_ELT(rk, 0, 4);
    rk[0] ^= rk[28];
    rk[1] ^= rk[29];
    rk[2] ^= rk[30];
    rk[3] ^= rk[31];
    x[0] = p[8] ^ rk[0];
    x[1] = p[9] ^ rk[1];
    x[2] = p[10] ^ rk[2];
    x[3] = p[11] ^ rk[3];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 4, 8);
    rk[4] ^= rk[0];
    rk[5] ^= rk[1];
    rk[6] ^= rk[2];
    rk[7] ^= rk[3];
    x[0] ^= rk[4];
    x[1] ^= rk[5];
    x[2] ^= rk[6];
    x[3] ^= rk[7];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 8, 12);
    rk[8] ^= rk[4];
    rk[9] ^= rk[5];
    rk[10] ^= rk[6];
    rk[11] ^= rk[7];
    x[0] ^= rk[8];
    x[1] ^= rk[9];
    x[2] ^= rk[10];
    x[3] ^= rk[11];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 12, 16);
    rk[12] ^= rk[8];
    rk[13] ^= rk[9];
    rk[14] ^= rk[10];
    rk[15] ^= rk[11];
    x[0] ^= rk[12];
    x[1] ^= rk[13];
    x[2] ^= rk[14];
    x[3] ^= rk[15];
    AES_ROUND_NOKEY(x);
    p[4] ^= x[0];
    p[5] ^= x[1];
    p[6] ^= x[2];
    p[7] ^= x[3];
    KEY_EXPAND_ELT(rk, 16, 20);
    rk[16] ^= rk[12];
    rk[17] ^= rk[13];
    rk[18] ^= rk[14];
    rk[19] ^= rk[15];
    x[0] = p[0] ^ rk[16];
    x[1] = p[1] ^ rk[17];
    x[2] = p[2] ^ rk[18];
    x[3] = p[3] ^ rk[19];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 20, 24);
    rk[20] ^= rk[16];
    rk[21] ^= rk[17];
    rk[22] ^= rk[18];
    rk[23] ^= rk[19];
    x[0] ^= rk[20];
    x[1] ^= rk[21];
    x[2] ^= rk[22];
    x[3] ^= rk[23];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 24, 28);
    rk[24] ^= rk[20];
    rk[25] ^= rk[21];
    rk[26] ^= rk[22];
    rk[27] ^= rk[23];
    x[0] ^= rk[24];
    x[1] ^= rk[25];
    x[2] ^= rk[26];
    x[3] ^= rk[27];
    AES_ROUND_NOKEY(x);
    KEY_EXPAND_ELT(rk, 28, 32);
    rk[28] ^= rk[24];
    rk[29] ^= rk[25];
    rk[30] ^= rk[26];
    rk[31] ^= rk[27];
    x[0] ^= rk[28];
    x[1] ^= rk[29];
    x[2] ^= rk[30];
    x[3] ^= rk[31];
    AES_ROUND_NOKEY(x);
    p[12] ^= x[0];
    p[13] ^= x[1];
    p[14] ^= x[2];
    p[15] ^= x[3];
    /* round 4, 8, 12 */
    rk[0] ^= rk[25];
    x[0] = p[4] ^ rk[0];
    rk[1] ^= rk[26];
    x[1] = p[5] ^ rk[1];
    rk[2] ^= rk[27];
    x[2] = p[6] ^ rk[2];
    rk[3] ^= rk[28];
    x[3] = p[7] ^ rk[3];
    AES_ROUND_NOKEY(x);
    rk[4] ^= rk[29];
    x[0] ^= rk[4];
    rk[5] ^= rk[30];
    x[1] ^= rk[5];
    rk[6] ^= rk[31];
    x[2] ^= rk[6];
    rk[7] ^= rk[0];
    x[3] ^= rk[7];
    AES_ROUND_NOKEY(x);
    rk[8] ^= rk[1];
    x[0] ^= rk[8];
    rk[9] ^= rk[2];
    x[1] ^= rk[9];
    rk[10] ^= rk[3];
    x[2] ^= rk[10];
    rk[11] ^= rk[4];
    x[3] ^= rk[11];
    AES_ROUND_NOKEY(x);
    rk[12] ^= rk[5];
    x[0] ^= rk[12];
    rk[13] ^= rk[6];
    x[1] ^= rk[13];
    rk[14] ^= rk[7];
    x[2] ^= rk[14];
    rk[15] ^= rk[8];
    x[3] ^= rk[15];
    AES_ROUND_NOKEY(x);
    p[0] ^= x[0];
    p[1] ^= x[1];
    p[2] ^= x[2];
    p[3] ^= x[3];
    rk[16] ^= rk[9];
    x[0] = p[12] ^ rk[16];
    rk[17] ^= rk[10];
    x[1] = p[13] ^ rk[17];
    rk[18] ^= rk[11];
    x[2] = p[14] ^ rk[18];
    rk[19] ^= rk[12];
    x[3] = p[15] ^ rk[19];
    AES_ROUND_NOKEY(x);
    rk[20] ^= rk[13];
    x[0] ^= rk[20];
    rk[21] ^= rk[14];
    x[1] ^= rk[21];
    rk[22] ^= rk[15];
    x[2] ^= rk[22];
    rk[23] ^= rk[16];
    x[3] ^= rk[23];
    AES_ROUND_NOKEY(x);
    rk[24] ^= rk[17];
    x[0] ^= rk[24];
    rk[25] ^= rk[18];
    x[1] ^= rk[25];
    rk[26] ^= rk[19];
    x[2] ^= rk[26];
    rk[27] ^= rk[20];
    x[3] ^= rk[27];
    AES_ROUND_NOKEY(x);
    rk[28] ^= rk[21];
    x[0] ^= rk[28];
    rk[29] ^= rk[22];
    x[1] ^= rk[29];
    rk[30] ^= rk[23];
    x[2] ^= rk[30];
    rk[31] ^= rk[24];
    x[3] ^= rk[31];
    AES_ROUND_NOKEY(x);
    p[8] ^= x[0];
    p[9] ^= x[1];
    p[10] ^= x[2];
    p[11] ^= x[3];
  }
  /* round 13 */
  KEY_EXPAND_ELT(rk, 0, 4);
  rk[0] ^= rk[28];
  rk[1] ^= rk[29];
  rk[2] ^= rk[30];
  rk[3] ^= rk[31];
  x[0] = p[0] ^ rk[0];
  x[1] = p[1] ^ rk[1];
  x[2] = p[2] ^ rk[2];
  x[3] = p[3] ^ rk[3];
  AES_ROUND_NOKEY(x);
  KEY_EXPAND_ELT(rk, 4, 8);
  rk[4] ^= rk[0];
  rk[5] ^= rk[1];
  rk[6] ^= rk[2];
  rk[7] ^= rk[3];
  x[0] ^= rk[4];
  x[1] ^= rk[5];
  x[2] ^= rk[6];
  x[3] ^= rk[7];
  AES_ROUND_NOKEY(x);
  KEY_EXPAND_ELT(rk, 8, 12);
  rk[8] ^= rk[4];
  rk[9] ^= rk[5];
  rk[10] ^= rk[6];
  rk[11] ^= rk[7];
  x[0] ^= rk[8];
  x[1] ^= rk[9];
  x[2] ^= rk[10];
  x[3] ^= rk[11];
  AES_ROUND_NOKEY(x);
  KEY_EXPAND_ELT(rk, 12, 16);
  rk[12] ^= rk[8];
  rk[13] ^= rk[9];
  rk[14] ^= rk[10];
  rk[15] ^= rk[11];
  x[0] ^= rk[12];
  x[1] ^= rk[13];
  x[2] ^= rk[14];
  x[3] ^= rk[15];
  AES_ROUND_NOKEY(x);
  p[12] ^= x[0];
  p[13] ^= x[1];
  p[14] ^= x[2];
  p[15] ^= x[3];
  KEY_EXPAND_ELT(rk, 16, 20);
  rk[16] ^= rk[12];
  rk[17] ^= rk[13];
  rk[18] ^= rk[14];
  rk[19] ^= rk[15];
  x[0] = p[8] ^ rk[16];
  x[1] = p[9] ^ rk[17];
  x[2] = p[10] ^ rk[18];
  x[3] = p[11] ^ rk[19];
  AES_ROUND_NOKEY(x);
  KEY_EXPAND_ELT(rk, 20, 24);
  rk[20] ^= rk[16];
  rk[21] ^= rk[17];
  rk[22] ^= rk[18];
  rk[23] ^= rk[19];
  x[0] ^= rk[20];
  x[1] ^= rk[21];
  x[2] ^= rk[22];
  x[3] ^= rk[23];
  AES_ROUND_NOKEY(x);
  KEY_EXPAND_ELT(rk, 24, 28);
  rk[24] ^= rk[20] ^ ctx.count[1];
  rk[25] ^= rk[21] ^ ctx.count[0];
  rk[26] ^= rk[22] ^ ctx.count[3];
  rk[27] ^= rk[23] ^ op.t32(~ctx.count[2]);
  x[0] ^= rk[24];
  x[1] ^= rk[25];
  x[2] ^= rk[26];
  x[3] ^= rk[27];
  AES_ROUND_NOKEY(x);
  KEY_EXPAND_ELT(rk, 28, 32);
  rk[28] ^= rk[24];
  rk[29] ^= rk[25];
  rk[30] ^= rk[26];
  rk[31] ^= rk[27];
  x[0] ^= rk[28];
  x[1] ^= rk[29];
  x[2] ^= rk[30];
  x[3] ^= rk[31];
  AES_ROUND_NOKEY(x);
  p[4] ^= x[0];
  p[5] ^= x[1];
  p[6] ^= x[2];
  p[7] ^= x[3];
  ctx.h[0] ^= p[8];
  ctx.h[1] ^= p[9];
  ctx.h[2] ^= p[10];
  ctx.h[3] ^= p[11];
  ctx.h[4] ^= p[12];
  ctx.h[5] ^= p[13];
  ctx.h[6] ^= p[14];
  ctx.h[7] ^= p[15];
  ctx.h[8] ^= p[0];
  ctx.h[9] ^= p[1];
  ctx.h[10] ^= p[2];
  ctx.h[11] ^= p[3];
  ctx.h[12] ^= p[4];
  ctx.h[13] ^= p[5];
  ctx.h[14] ^= p[6];
  ctx.h[15] ^= p[7];
}

var shavite = function(ctx, data) {
  var len = data.length;
  var buf = ctx.buffer;
  var ptr = ctx.ptr;
  while (len > 0) {
    var clen = ctx.buffer.length - ctx.ptr;
    if (clen > len) clen = len;
    op.bufferInsert(buf, ptr, data, clen);
    ptr += clen;
    data = data.slice(clen);
    len -= clen;
    if (ptr === ctx.buffer.length) {
      if ((ctx.count[0] = op.t32(ctx.count[0] + 1024)) == 0) {
        ctx.count[1] = op.t32(ctx.count[1] + 1);
        if (ctx.count[1] == 0) {
          ctx.count[2] = op.t32(ctx.count[2] + 1);
          if (ctx.count[2] == 0) {
            ctx.count[3] = op.t32(ctx.count[3] + 1);
          }
        }
      }
      c512(ctx, buf);
      ptr = 0;
    }
  }
  ctx.ptr = ptr;
}

var shaviteClose = function(ctx, ub, n) {
  var buf;
  var ptr, u;
  var z;
  var count = new Array(4);

  buf = ctx.buffer;
  ptr = ctx.ptr;
  count[0] = (ctx.count[0] += (ptr << 3) + n);
  count[1] = ctx.count[1];
  count[2] = ctx.count[2];
  count[3] = ctx.count[3];
  z = 0x80 >> n;
  z = ((ub & -z) | z) & 0xFF;
  if (ptr == 0 && n == 0) {
    buf[0] = 0x80;
    op.bufferSet(buf, 1, 0, 109);
    op.bufferSet(ctx.count, 0, 0, 4);
  }
  else if (ptr < 110) {
    buf[ptr++] = z;
    op.bufferSet(buf, ptr, 0, 110 - ptr);
  }
  else {
    buf[ptr++] = z;
    op.bufferSet(buf, ptr, 0, 128 - ptr);
    c512(ctx, buf);
    op.bufferSet(buf, 0, 0, 110);
    op.bufferSet(ctx.count, 0, 0, 4);
  }

  var countSwapped = op.swap32Array(count);
  var countBytes = h.int32Buffer2Bytes(countSwapped);
  op.bufferInsert(buf, 110, countBytes, 16);
  buf[126] = (16 << 5) & 0xFF; //just to copy the spec (doesn't make sense)
  buf[127] = 16 >>> 3;
  c512(ctx, buf);

  var out = new Array(16);
  for (u = 0; u < 16; u++)
    out[u] = op.swap32(ctx.h[u]);
  return out;
}

module.exports = function(input, format, output) {
  var msg;
  if (format === 1) {
    msg = input;
  }
  else if (format === 2) {
    msg = h.int32Buffer2Bytes(input);
  }
  else {
    msg = h.string2bytes(input);
  }
  var ctx = {};
  ctx.ptr = 0;
  ctx.count = new Array(4);
  op.bufferSet(ctx.count, 0, 0, 4);
  ctx.h = IV512.slice();
  ctx.buffer = new Array(Shavite_BlockSize);
  shavite(ctx, msg);
  var r = shaviteClose(ctx, 0, 0);
  var out;
  if (output === 2) {
    out = r;
  }
  else if (output === 1) {
    out = h.int32Buffer2Bytes(r)
  }
  else {
    out = h.int32ArrayToHexString(r)
  }
  return out;
}
},{"./aes":197,"./helper":203,"./op":207}],209:[function(require,module,exports){
/////////////////////////////////////
//////////////  Simd ///////////////

//// Written by Quantum Explorer ////
////////// Dash Foundation //////////
/// Released under the MIT License //
/////////////////////////////////////

var op = require('./op');
var h = require('./helper');

var Simd_BlockSize = 128;
var Simd_StateSize = 32;

var IV512 = [
  0x0BA16B95, 0x72F999AD, 0x9FECC2AE, 0xBA3264FC,
  0x5E894929, 0x8E9F30E5, 0x2F1DAA37, 0xF0F2C558,
  0xAC506643, 0xA90635A5, 0xE25B878B, 0xAAB7878F,
  0x88817F7A, 0x0A02892B, 0x559A7550, 0x598F657E,
  0x7EEF60A1, 0x6B70E3E8, 0x9C1714D1, 0xB958E2A8,
  0xAB02675E, 0xED1C014F, 0xCD8D65BB, 0xFDB7A257,
  0x09254899, 0xD699C7BC, 0x9019B6DC, 0x2B9022E4,
  0x8FA14956, 0x21BF9BD3, 0xB94D0943, 0x6FFDDC22,
];

/*
 * The powers of 41 modulo 257. We use exponents from 0 to 255, inclusive.
 */
var alpha_tab = [
  1, 41, 139, 45, 46, 87, 226, 14, 60, 147, 116, 130,
  190, 80, 196, 69, 2, 82, 21, 90, 92, 174, 195, 28,
  120, 37, 232, 3, 123, 160, 135, 138, 4, 164, 42, 180,
  184, 91, 133, 56, 240, 74, 207, 6, 246, 63, 13, 19,
  8, 71, 84, 103, 111, 182, 9, 112, 223, 148, 157, 12,
  235, 126, 26, 38, 16, 142, 168, 206, 222, 107, 18, 224,
  189, 39, 57, 24, 213, 252, 52, 76, 32, 27, 79, 155,
  187, 214, 36, 191, 121, 78, 114, 48, 169, 247, 104, 152,
  64, 54, 158, 53, 117, 171, 72, 125, 242, 156, 228, 96,
  81, 237, 208, 47, 128, 108, 59, 106, 234, 85, 144, 250,
  227, 55, 199, 192, 162, 217, 159, 94, 256, 216, 118, 212,
  211, 170, 31, 243, 197, 110, 141, 127, 67, 177, 61, 188,
  255, 175, 236, 167, 165, 83, 62, 229, 137, 220, 25, 254,
  134, 97, 122, 119, 253, 93, 215, 77, 73, 166, 124, 201,
  17, 183, 50, 251, 11, 194, 244, 238, 249, 186, 173, 154,
  146, 75, 248, 145, 34, 109, 100, 245, 22, 131, 231, 219,
  241, 115, 89, 51, 35, 150, 239, 33, 68, 218, 200, 233,
  44, 5, 205, 181, 225, 230, 178, 102, 70, 43, 221, 66,
  136, 179, 143, 209, 88, 10, 153, 105, 193, 203, 99, 204,
  140, 86, 185, 132, 15, 101, 29, 161, 176, 20, 49, 210,
  129, 149, 198, 151, 23, 172, 113, 7, 30, 202, 58, 65,
  95, 40, 98, 163
];

/*
 * beta^(255*i) mod 257
 */
var yoff_b_n = [
  1, 163, 98, 40, 95, 65, 58, 202, 30, 7, 113, 172,
  23, 151, 198, 149, 129, 210, 49, 20, 176, 161, 29, 101,
  15, 132, 185, 86, 140, 204, 99, 203, 193, 105, 153, 10,
  88, 209, 143, 179, 136, 66, 221, 43, 70, 102, 178, 230,
  225, 181, 205, 5, 44, 233, 200, 218, 68, 33, 239, 150,
  35, 51, 89, 115, 241, 219, 231, 131, 22, 245, 100, 109,
  34, 145, 248, 75, 146, 154, 173, 186, 249, 238, 244, 194,
  11, 251, 50, 183, 17, 201, 124, 166, 73, 77, 215, 93,
  253, 119, 122, 97, 134, 254, 25, 220, 137, 229, 62, 83,
  165, 167, 236, 175, 255, 188, 61, 177, 67, 127, 141, 110,
  197, 243, 31, 170, 211, 212, 118, 216, 256, 94, 159, 217,
  162, 192, 199, 55, 227, 250, 144, 85, 234, 106, 59, 108,
  128, 47, 208, 237, 81, 96, 228, 156, 242, 125, 72, 171,
  117, 53, 158, 54, 64, 152, 104, 247, 169, 48, 114, 78,
  121, 191, 36, 214, 187, 155, 79, 27, 32, 76, 52, 252,
  213, 24, 57, 39, 189, 224, 18, 107, 222, 206, 168, 142,
  16, 38, 26, 126, 235, 12, 157, 148, 223, 112, 9, 182,
  111, 103, 84, 71, 8, 19, 13, 63, 246, 6, 207, 74,
  240, 56, 133, 91, 184, 180, 42, 164, 4, 138, 135, 160,
  123, 3, 232, 37, 120, 28, 195, 174, 92, 90, 21, 82,
  2, 69, 196, 80, 190, 130, 116, 147, 60, 14, 226, 87,
  46, 45, 139, 41
];

/*
 * beta^(255*i) + beta^(253*i) mod 257
 */
var yoff_b_f = [
  2, 203, 156, 47, 118, 214, 107, 106, 45, 93, 212, 20,
  111, 73, 162, 251, 97, 215, 249, 53, 211, 19, 3, 89,
  49, 207, 101, 67, 151, 130, 223, 23, 189, 202, 178, 239,
  253, 127, 204, 49, 76, 236, 82, 137, 232, 157, 65, 79,
  96, 161, 176, 130, 161, 30, 47, 9, 189, 247, 61, 226,
  248, 90, 107, 64, 0, 88, 131, 243, 133, 59, 113, 115,
  17, 236, 33, 213, 12, 191, 111, 19, 251, 61, 103, 208,
  57, 35, 148, 248, 47, 116, 65, 119, 249, 178, 143, 40,
  189, 129, 8, 163, 204, 227, 230, 196, 205, 122, 151, 45,
  187, 19, 227, 72, 247, 125, 111, 121, 140, 220, 6, 107,
  77, 69, 10, 101, 21, 65, 149, 171, 255, 54, 101, 210,
  139, 43, 150, 151, 212, 164, 45, 237, 146, 184, 95, 6,
  160, 42, 8, 204, 46, 238, 254, 168, 208, 50, 156, 190,
  106, 127, 34, 234, 68, 55, 79, 18, 4, 130, 53, 208,
  181, 21, 175, 120, 25, 100, 192, 178, 161, 96, 81, 127,
  96, 227, 210, 248, 68, 10, 196, 31, 9, 167, 150, 193,
  0, 169, 126, 14, 124, 198, 144, 142, 240, 21, 224, 44,
  245, 66, 146, 238, 6, 196, 154, 49, 200, 222, 109, 9,
  210, 141, 192, 138, 8, 79, 114, 217, 68, 128, 249, 94,
  53, 30, 27, 61, 52, 135, 106, 212, 70, 238, 30, 185,
  10, 132, 146, 136, 117, 37, 251, 150, 180, 188, 247, 156,
  236, 192, 108, 86
];

var WB_DATA = [
  [
    [4, 0, 1, 185],
    [6, 0, 1, 185],
    [0, 0, 1, 185],
    [2, 0, 1, 185],
    [7, 0, 1, 185],
    [5, 0, 1, 185],
    [3, 0, 1, 185],
    [1, 0, 1, 185]
  ],
  [
    [15, 0, 1, 185],
    [11, 0, 1, 185],
    [12, 0, 1, 185],
    [8, 0, 1, 185],
    [9, 0, 1, 185],
    [13, 0, 1, 185],
    [10, 0, 1, 185],
    [14, 0, 1, 185]
  ],
  [
    [17, -256, -128, 233],
    [18, -256, -128, 233],
    [23, -256, -128, 233],
    [20, -256, -128, 233],
    [22, -256, -128, 233],
    [21, -256, -128, 233],
    [16, -256, -128, 233],
    [19, -256, -128, 233]
  ],
  [
    [30, -383, -255, 233],
    [24, -383, -255, 233],
    [25, -383, -255, 233],
    [31, -383, -255, 233],
    [27, -383, -255, 233],
    [29, -383, -255, 233],
    [28, -383, -255, 233],
    [26, -383, -255, 233]
  ]
];

var REDS1 = function(x) {
  return (((x) & 0xFF) - ((x) >> 8));
}
var REDS2 = function(x) {
  return (((x) & 0xFFFF) + ((x) >> 16));
}

var IF = function(x, y, z) {
  return ((((y) ^ (z)) & (x)) ^ (z));
}
var MAJ = function(x, y, z) {
  return (((x) & (y)) | (((x) | (y)) & (z)));
}

var FFT_LOOP = function(q, qOffset, hk, as) {
  var u, v;
  var m = q[(qOffset)];
  var n = q[(qOffset) + (hk)];
  q[(qOffset)] = m + n;
  q[(qOffset) + (hk)] = m - n;
  u = v = 0;
  var firstTime = true;
  for (; u < (hk); u += 4, v += 4 * (as)) {
    if (!firstTime) {
      var t;
      m = q[(qOffset) + u + 0];
      n = q[(qOffset) + u + 0 + (hk)];
      t = REDS2(n * alpha_tab[v + 0 * (as)]);
      q[(qOffset) + u + 0] = m + t;
      q[(qOffset) + u + 0 + (hk)] = m - t;
    }
    else {
      firstTime = false;
    }
    m = q[(qOffset) + u + 1];
    n = q[(qOffset) + u + 1 + (hk)];
    t = REDS2(n * alpha_tab[v + 1 * (as)]);
    q[(qOffset) + u + 1] = m + t;
    q[(qOffset) + u + 1 + (hk)] = m - t;
    m = q[(qOffset) + u + 2];
    n = q[(qOffset) + u + 2 + (hk)];
    t = REDS2(n * alpha_tab[v + 2 * (as)]);
    q[(qOffset) + u + 2] = m + t;
    q[(qOffset) + u + 2 + (hk)] = m - t;
    m = q[(qOffset) + u + 3];
    n = q[(qOffset) + u + 3 + (hk)];
    t = REDS2(n * alpha_tab[v + 3 * (as)]);
    q[(qOffset) + u + 3] = m + t;
    q[(qOffset) + u + 3 + (hk)] = m - t;
  }
}

var FFT8 = function(x, xOffset, xs, d) {
  var x0 = x[(xOffset)];
  var x1 = x[(xOffset) + (xs)];
  var x2 = x[(xOffset) + 2 * (xs)];
  var x3 = x[(xOffset) + 3 * (xs)];
  var a0 = x0 + x2;
  var a1 = x0 + (x2 << 4);
  var a2 = x0 - x2;
  var a3 = x0 - (x2 << 4);
  var b0 = x1 + x3;
  var b1 = REDS1((x1 << 2) + (x3 << 6));
  var b2 = (x1 << 4) - (x3 << 4);
  var b3 = REDS1((x1 << 6) + (x3 << 2));
  d[0] = a0 + b0;
  d[1] = a1 + b1;
  d[2] = a2 + b2;
  d[3] = a3 + b3;
  d[4] = a0 - b0;
  d[5] = a1 - b1;
  d[6] = a2 - b2;
  d[7] = a3 - b3;
}

var FFT16 = function(x, xOffset, q, qOffset, xs) {
  var d1 = new Array(8);
  var d2 = new Array(8);
  FFT8(x, xOffset, (xs) << 1, d1);
  FFT8(x, (xOffset) + (xs), (xs) << 1, d2);
  q[(qOffset) + 0] = d1[0] + d2[0];
  q[(qOffset) + 1] = d1[1] + (d2[1] << 1);
  q[(qOffset) + 2] = d1[2] + (d2[2] << 2);
  q[(qOffset) + 3] = d1[3] + (d2[3] << 3);
  q[(qOffset) + 4] = d1[4] + (d2[4] << 4);
  q[(qOffset) + 5] = d1[5] + (d2[5] << 5);
  q[(qOffset) + 6] = d1[6] + (d2[6] << 6);
  q[(qOffset) + 7] = d1[7] + (d2[7] << 7);
  q[(qOffset) + 8] = d1[0] - d2[0];
  q[(qOffset) + 9] = d1[1] - (d2[1] << 1);
  q[(qOffset) + 10] = d1[2] - (d2[2] << 2);
  q[(qOffset) + 11] = d1[3] - (d2[3] << 3);
  q[(qOffset) + 12] = d1[4] - (d2[4] << 4);
  q[(qOffset) + 13] = d1[5] - (d2[5] << 5);
  q[(qOffset) + 14] = d1[6] - (d2[6] << 6);
  q[(qOffset) + 15] = d1[7] - (d2[7] << 7);
}

var FFT32 = function(x, xOffset, q, qOffset, xs) {
  var xd = xs << 1;
  FFT16(x, xOffset, q, qOffset, xd);
  FFT16(x, xOffset + xs, q, qOffset + 16, xd);
  FFT_LOOP(q, qOffset, 16, 8);
}

var FFT64 = function(x, xOffset, q, qOffset, xs) {
  var xd = xs << 1;
  FFT32(x, xOffset, q, qOffset, xd);
  FFT32(x, xOffset + xs, q, qOffset + 32, xd);
  FFT_LOOP(q, qOffset, 32, 4);
}

var FFT256 = function(x, xOffset, q, qOffset, xs) {
  FFT64(x, xOffset, q, qOffset, (xs) << 2);
  FFT64(x, (xOffset) + ((xs) * 2), q, qOffset + 64, (xs) << 2);
  FFT_LOOP(q, qOffset, 64, 2);
  FFT64(x, (xOffset) + ((xs) * 1), q, qOffset + 128, (xs) << 2);
  FFT64(x, (xOffset) + ((xs) * 3), q, qOffset + 192, (xs) << 2);
  FFT_LOOP(q, qOffset + 128, 64, 2);
  FFT_LOOP(q, qOffset, 128, 1);
}

var READ_STATES = function(A, B, C, D, states) {
  A[0] = states[0];
  A[1] = states[1];
  A[2] = states[2];
  A[3] = states[3];
  A[4] = states[4];
  A[5] = states[5];
  A[6] = states[6];
  A[7] = states[7];
  B[0] = states[8];
  B[1] = states[9];
  B[2] = states[10];
  B[3] = states[11];
  B[4] = states[12];
  B[5] = states[13];
  B[6] = states[14];
  B[7] = states[15];
  C[0] = states[16];
  C[1] = states[17];
  C[2] = states[18];
  C[3] = states[19];
  C[4] = states[20];
  C[5] = states[21];
  C[6] = states[22];
  C[7] = states[23];
  D[0] = states[24];
  D[1] = states[25];
  D[2] = states[26];
  D[3] = states[27];
  D[4] = states[28];
  D[5] = states[29];
  D[6] = states[30];
  D[7] = states[31];
}

var WRITE_STATES = function(A, B, C, D, states) {
  states[0] = A[0];
  states[1] = A[1];
  states[2] = A[2];
  states[3] = A[3];
  states[4] = A[4];
  states[5] = A[5];
  states[6] = A[6];
  states[7] = A[7];
  states[8] = B[0];
  states[9] = B[1];
  states[10] = B[2];
  states[11] = B[3];
  states[12] = B[4];
  states[13] = B[5];
  states[14] = B[6];
  states[15] = B[7];
  states[16] = C[0];
  states[17] = C[1];
  states[18] = C[2];
  states[19] = C[3];
  states[20] = C[4];
  states[21] = C[5];
  states[22] = C[6];
  states[23] = C[7];
  states[24] = D[0];
  states[25] = D[1];
  states[26] = D[2];
  states[27] = D[3];
  states[28] = D[4];
  states[29] = D[5];
  states[30] = D[6];
  states[31] = D[7];
}

var PP8 = [
  [1, 0, 3, 2, 5, 4, 7, 6],
  [6, 7, 4, 5, 2, 3, 0, 1],
  [2, 3, 0, 1, 6, 7, 4, 5],
  [3, 2, 1, 0, 7, 6, 5, 4],
  [5, 4, 7, 6, 1, 0, 3, 2],
  [7, 6, 5, 4, 3, 2, 1, 0],
  [4, 5, 6, 7, 0, 1, 2, 3]
];


var M7 = [
  [0, 1, 2, 3],
  [1, 2, 3, 4],
  [2, 3, 4, 5],
  [3, 4, 5, 6],
  [4, 5, 6, 0],
  [5, 6, 0, 1],
  [6, 0, 1, 2],
  [0, 1, 2, 3]
];

var INNER = function(l, h, mm) {
  return (((l * mm) & 0xFFFF) + ((h * mm) << 16));
}

var W_BIG = function(sb, o1, o2, mm, q) {
  var r = new Array(8);
  r[0] = INNER(q[16 * (sb) + 2 * 0 + o1], q[16 * (sb) + 2 * 0 + o2], mm);
  r[1] = INNER(q[16 * (sb) + 2 * 1 + o1], q[16 * (sb) + 2 * 1 + o2], mm);
  r[2] = INNER(q[16 * (sb) + 2 * 2 + o1], q[16 * (sb) + 2 * 2 + o2], mm);
  r[3] = INNER(q[16 * (sb) + 2 * 3 + o1], q[16 * (sb) + 2 * 3 + o2], mm);
  r[4] = INNER(q[16 * (sb) + 2 * 4 + o1], q[16 * (sb) + 2 * 4 + o2], mm);
  r[5] = INNER(q[16 * (sb) + 2 * 5 + o1], q[16 * (sb) + 2 * 5 + o2], mm);
  r[6] = INNER(q[16 * (sb) + 2 * 6 + o1], q[16 * (sb) + 2 * 6 + o2], mm);
  r[7] = INNER(q[16 * (sb) + 2 * 7 + o1], q[16 * (sb) + 2 * 7 + o2], mm);
  return r;
}

var WB = function(x, y, q) {
  var wb = WB_DATA[x][y];
  return W_BIG(wb[0], wb[1], wb[2], wb[3], q);
}

var STEP_ELT = function(n, w, fun, s, ppb, tA, A, B, C, D) {
  var tt = op.t32(D[n] + (w) + fun(A[n], B[n], C[n]));
  A[n] = op.t32(op.rotl32(tt, s) + tA[ppb[n]]);
  D[n] = C[n];
  C[n] = B[n];
  B[n] = tA[n];
};

var STEP_BIG = function(w, fun, r, s, pp8b, A, B, C, D) {
  var tA = new Array(8);
  tA[0] = op.rotl32(A[0], r);
  tA[1] = op.rotl32(A[1], r);
  tA[2] = op.rotl32(A[2], r);
  tA[3] = op.rotl32(A[3], r);
  tA[4] = op.rotl32(A[4], r);
  tA[5] = op.rotl32(A[5], r);
  tA[6] = op.rotl32(A[6], r);
  tA[7] = op.rotl32(A[7], r);
  STEP_ELT(0, w[0], fun, s, pp8b, tA, A, B, C, D);
  STEP_ELT(1, w[1], fun, s, pp8b, tA, A, B, C, D);
  STEP_ELT(2, w[2], fun, s, pp8b, tA, A, B, C, D);
  STEP_ELT(3, w[3], fun, s, pp8b, tA, A, B, C, D);
  STEP_ELT(4, w[4], fun, s, pp8b, tA, A, B, C, D);
  STEP_ELT(5, w[5], fun, s, pp8b, tA, A, B, C, D);
  STEP_ELT(6, w[6], fun, s, pp8b, tA, A, B, C, D);
  STEP_ELT(7, w[7], fun, s, pp8b, tA, A, B, C, D);
}

var ONE_ROUND_BIG = function(ri, isp, p0, p1, p2, p3, A, B, C, D, q) {
  STEP_BIG(WB(ri, 0, q), IF, p0, p1, PP8[M7[0][isp]], A, B, C, D);
  STEP_BIG(WB(ri, 1, q), IF, p1, p2, PP8[M7[1][isp]], A, B, C, D);
  STEP_BIG(WB(ri, 2, q), IF, p2, p3, PP8[M7[2][isp]], A, B, C, D);
  STEP_BIG(WB(ri, 3, q), IF, p3, p0, PP8[M7[3][isp]], A, B, C, D);
  STEP_BIG(WB(ri, 4, q), MAJ, p0, p1, PP8[M7[4][isp]], A, B, C, D);
  STEP_BIG(WB(ri, 5, q), MAJ, p1, p2, PP8[M7[5][isp]], A, B, C, D);
  STEP_BIG(WB(ri, 6, q), MAJ, p2, p3, PP8[M7[6][isp]], A, B, C, D);
  STEP_BIG(WB(ri, 7, q), MAJ, p3, p0, PP8[M7[7][isp]], A, B, C, D);
}

var compress = function(ctx, last) {
  var q = new Array(256);
  var i;
  var A = new Array(8);
  var B = new Array(8);
  var C = new Array(8);
  var D = new Array(8);
  FFT256(ctx.buffer, 0, q, 0, 1);
  if (last) {
    for (i = 0; i < 256; i++) {
      var tq;

      tq = q[i] + yoff_b_f[i];
      tq = REDS2(tq);
      tq = REDS1(tq);
      tq = REDS1(tq);
      q[i] = (tq <= 128 ? tq : tq - 257);
    }
  }
  else {
    for (i = 0; i < 256; i++) {
      var tq;

      tq = q[i] + yoff_b_n[i];
      tq = REDS2(tq);
      tq = REDS1(tq);
      tq = REDS1(tq);
      q[i] = (tq <= 128 ? tq : tq - 257);
    }
  }
  READ_STATES(A, B, C, D, ctx.state);
  var x = op.swap32Array(h.bytes2Int32Buffer(ctx.buffer));
  op.bufferXORInsert(A,0,x,0,8);
  op.bufferXORInsert(B,0,x,8,8);
  op.bufferXORInsert(C,0,x,16,8);
  op.bufferXORInsert(D,0,x,24,8);

  ONE_ROUND_BIG(0, 0, 3, 23, 17, 27, A, B, C, D, q);
  ONE_ROUND_BIG(1, 1, 28, 19, 22, 7, A, B, C, D, q);
  ONE_ROUND_BIG(2, 2, 29, 9, 15, 5, A, B, C, D, q);
  ONE_ROUND_BIG(3, 3, 4, 13, 10, 25, A, B, C, D, q);

  STEP_BIG(ctx.state.slice(0, 8),IF, 4, 13, PP8[4],A,B,C,D);
  STEP_BIG(ctx.state.slice(8, 16),IF, 13, 10, PP8[5],A,B,C,D);
  STEP_BIG(ctx.state.slice(16, 24),IF, 10, 25, PP8[6],A,B,C,D);
  STEP_BIG(ctx.state.slice(24, 32),IF, 25, 4, PP8[0],A,B,C,D);
  WRITE_STATES(A, B, C, D, ctx.state);
}

var simd = function(ctx, data) {
  var len = data.length;
  while (len > 0) {
    var clen = ctx.buffer.length - ctx.ptr;
    if (clen > len) clen = len;
    op.bufferInsert(ctx.buffer, ctx.ptr, data, clen);
    ctx.ptr += clen;
    data = data.slice(clen);
    len -= clen;
    if (ctx.ptr === ctx.buffer.length) {
      compress(ctx, 0);
      ctx.ptr = 0;
      ctx.countLow = op.t32(ctx.countLow + 1);
      if (ctx.countLow == 0)
        ctx.countHigh++;
    }
  }
}

var encode_count = function(dst, offset, low, high, ptr, n) {
  low = op.t32(low << 10);
  high = op.t32(high << 10) + (low >> 22);
  low += (ptr << 3) + n;
  dst[offset] = low & 0xFF;
  dst[offset + 1] = (low & 0xFF00) >>> 8;
  dst[offset + 2] = (low & 0xFF0000) >>> 8;
  dst[offset + 3] = (low & 0xFF000000) >>> 8;
  dst[offset + 4] = high & 0xFF;
  dst[offset + 5] = (high & 0xFF00) >>> 8;
  dst[offset + 6] = (high & 0xFF0000) >>> 8;
  dst[offset + 7] = (high & 0xFF000000) >>> 8;
}

var simdClose = function(ctx, ub, n) {
  var buf = ctx.buffer;
  var ptr = ctx.ptr;
  var d;
  var u;

  if (ctx.ptr > 0 || n > 0) {
    op.bufferSet(buf, ptr, 0, buf.length - ptr);
    buf[ptr] = ub & (0xFF << (8 - n));
    compress(ctx, 0);
  }
  op.bufferSet(buf, 0, 0, buf.length);
  encode_count(buf, 0, ctx.countLow, ctx.countHigh, ctx.ptr, n);
  compress(ctx, 1);
  var out = new Array(16);
  for (u = 0; u < 16; u++)
    out[u] = op.swap32(ctx.state[u]);
  return out;
}

module.exports = function(input, format, output) {
  var msg;
  if (format === 1) {
    msg = input;
  }
  else if (format === 2) {
    msg = h.int32Buffer2Bytes(input);
  }
  else {
    msg = h.string2bytes(input);
  }
  var ctx = {};
  ctx.state = IV512.slice();
  ctx.ptr = 0;
  ctx.countLow = 0;
  ctx.countHigh = 0;
  ctx.buffer = new Array(Simd_BlockSize);
  simd(ctx, msg);
  var r = simdClose(ctx, 0, 0);
  var out;
  if (output === 2) {
    out = r;
  }
  else if (output === 1) {
    out = h.int32Buffer2Bytes(r)
  }
  else {
    out = h.int32ArrayToHexString(r)
  }
  return out;
}
},{"./helper":203,"./op":207}],210:[function(require,module,exports){
//from http://www.h2database.com/skein/
// Released under the public domain

var op = require('./op');
var h = require('./helper');

module.exports = function(input, format, output) {
	var msg;
	if (format === 1) {
		msg = input;
	}
	else if (format === 2) {
		msg = h.int32Buffer2Bytes(input);
	}
	else {
		msg = h.string2bytes(input);
	}
	// final: 0x80; first: 0x40; conf: 0x4; msg: 0x30; out: 0x3f
	var tweak = [
			[0, 32],
			[(0x80 + 0x40 + 0x4) << 24, 0]
		],
		c = [];
	var buff = h.string2bytes("SHA3\1\0\0\0\0\2");
	block(c, tweak, buff, 0);
	tweak = [
		[0, 0],
		[(0x40 + 0x30) << 24, 0]
	];
	var len = msg.length,
		pos = 0;
	for (; len > 64; len -= 64, pos += 64) {
		tweak[0][1] += 64;
		block(c, tweak, msg, pos);
		tweak[1][0] = 0x30 << 24;
	}
	tweak[0][1] += len;
	tweak[1][0] |= 0x80 << 24;
	block(c, tweak, msg, pos);
	tweak[0][1] = 8;
	tweak[1][0] = (0x80 + 0x40 + 0x3f) << 24;
	block(c, tweak, [], 0);
	for (var hash = [], i = 0; i < 64; i++) {
		var b = (shiftRight(c[i >> 3], (i & 7) * 8)[1] & 255);
		hash.push(b);
	}
	var out;
  if (output === 2) {
    out = h.bytes2Int32Buffer(hash);
  }
  else if (output === 1) {
    return out;
  }
  else {
    out = h.int8ArrayToHexString(hash);
  }
  return out;
}

function shiftLeft(x, n) {
	if (x == null) return [0, 0];
	if (n > 32) return [x[1] << (n - 32), 0];
	if (n == 32) return [x[1], 0];
	if (n == 0) return x;
	return [(x[0] << n) | (x[1] >>> (32 - n)), x[1] << n];
}

function shiftRight(x, n) {
	if (x == null) return [0, 0];
	if (n > 32) return [0, x[0] >>> (n - 32)];
	if (n == 32) return [0, x[0]];
	if (n == 0) return x;
	return [x[0] >>> n, (x[0] << (32 - n)) | (x[1] >>> n)];
}

function add(x, y) {
	if (y == null) return x;
	var lsw = (x[1] & 0xffff) + (y[1] & 0xffff);
	var msw = (x[1] >>> 16) + (y[1] >>> 16) + (lsw >>> 16);
	var lowOrder = ((msw & 0xffff) << 16) | (lsw & 0xffff);
	lsw = (x[0] & 0xffff) + (y[0] & 0xffff) + (msw >>> 16);
	msw = (x[0] >>> 16) + (y[0] >>> 16) + (lsw >>> 16);
	var highOrder = ((msw & 0xffff) << 16) | (lsw & 0xffff);
	return [highOrder, lowOrder];
}

function xor(a, b) {
	if (b == null) return a;
	return [a[0] ^ b[0], a[1] ^ b[1]];
}

function block(c, tweak, b, off) {
	var R = [46, 36, 19, 37, 33, 42, 14, 27, 17, 49, 36, 39, 44, 56, 54, 9,
		39, 30, 34, 24, 13, 17, 10, 50, 25, 29, 39, 43, 8, 22, 56, 35
	];
	var x = [],
		t = [];
	// c[8] = [0x55555555, 0x55555555];
	c[8] = [0x1BD11BDA, 0xA9FC1A22];
	for (var i = 0; i < 8; i++) {
		for (var j = 7, k = off + i * 8 + 7; j >= 0; j--, k--) {
			t[i] = shiftLeft(t[i], 8);
			t[i][1] |= b[k] & 255;
		}
		x[i] = add(t[i], c[i]);
		c[8] = xor(c[8], c[i]);
	}
	x[5] = add(x[5], tweak[0]);
	x[6] = add(x[6], tweak[1]);
	tweak[2] = xor(tweak[0], tweak[1]);
	for (var round = 1; round <= 18; round++) {
		var p = 16 - ((round & 1) << 4);
		for (var i = 0; i < 16; i++) {
			// m: 0, 2, 4, 6, 2, 0, 6, 4, 4, 6, 0, 2, 6, 4, 2, 0
			var m = 2 * ((i + (1 + i + i) * (i >> 2)) & 3);
			var n = (1 + i + i) & 7;
			var r = R[p + i];
			x[m] = add(x[m], x[n]);
			x[n] = xor(shiftLeft(x[n], r), shiftRight(x[n], 64 - r));
			x[n] = xor(x[n], x[m]);

		}
		for (var i = 0; i < 8; i++)
			x[i] = add(x[i], c[(round + i) % 9]);
		x[5] = add(x[5], tweak[round % 3]);
		x[6] = add(x[6], tweak[(round + 1) % 3]);
		x[7] = add(x[7], [0, round]);
	}
	for (var i = 0; i < 8; i++)
		c[i] = xor(t[i], x[i]);
}
},{"./helper":203,"./op":207}],211:[function(require,module,exports){
module.exports={
  "name": "bitcore-lib-dash",
  "version": "0.13.19",
  "description": "A pure and powerful JavaScript Dash library.",
  "author": "BitPay <dev@bitpay.com>",
  "main": "index.js",
  "scripts": {
    "lint": "gulp lint",
    "test": "gulp test",
    "coverage": "gulp coverage",
    "build": "gulp"
  },
  "contributors": [
    {
      "name": "Daniel Cousens",
      "email": "bitcoin@dcousens.com"
    },
    {
      "name": "Esteban Ordano",
      "email": "eordano@gmail.com"
    },
    {
      "name": "Gordon Hall",
      "email": "gordon@bitpay.com"
    },
    {
      "name": "Jeff Garzik",
      "email": "jgarzik@bitpay.com"
    },
    {
      "name": "Kyle Drake",
      "email": "kyle@kyledrake.net"
    },
    {
      "name": "Manuel Araoz",
      "email": "manuelaraoz@gmail.com"
    },
    {
      "name": "Matias Alejo Garcia",
      "email": "ematiu@gmail.com"
    },
    {
      "name": "Ryan X. Charles",
      "email": "ryanxcharles@gmail.com"
    },
    {
      "name": "Stefan Thomas",
      "email": "moon@justmoon.net"
    },
    {
      "name": "Stephen Pair",
      "email": "stephen@bitpay.com"
    },
    {
      "name": "Wei Lu",
      "email": "luwei.here@gmail.com"
    },
    {
      "name": "UdjinM6",
      "email": "UdjinM6@gmail.com"
    }
  ],
  "keywords": [
    "dash",
    "transaction",
    "address",
    "p2p",
    "ecies",
    "cryptocurrency",
    "blockchain",
    "payment",
    "bip21",
    "bip32",
    "bip37",
    "bip69",
    "bip70",
    "multisig"
  ],
  "repository": {
    "type": "git",
    "url": "https://github.com/dashpay/bitcore-lib-dash.git"
  },
  "browser": {
    "request": "browser-request"
  },
  "dependencies": {
    "bn.js": "=2.0.4",
    "bs58": "=2.0.0",
    "buffer-compare": "=1.0.0",
    "elliptic": "=3.0.3",
    "inherits": "=2.0.1",
    "lodash": "=3.10.1",
    "sha512": "=0.0.1",
    "x11-hash-js": "^1.0.0"
  },
  "devDependencies": {
    "bitcore-build-dash": "dashpay/bitcore-build-dash",
    "browserify": "latest",
    "brfs": "^1.2.0",
    "chai": "^1.10.0",
    "gulp": "^3.8.10",
    "sinon": "^1.13.0"
  },
  "license": "MIT"
}

},{}],"bitcore-lib-dash":[function(require,module,exports){
(function (global,Buffer){
'use strict';

var bitcore = module.exports;

// module information
bitcore.version = 'v' + require('./package.json').version;
bitcore.versionGuard = function(version) {
  if (version !== undefined) {
    var message = 'More than one instance of bitcore-lib found. ' + 
      'Please make sure to require bitcore-lib and check that submodules do' +
      ' not also include their own bitcore-lib dependency.';
    throw new Error(message);
  }
};
bitcore.versionGuard(global._bitcore);
global._bitcore = bitcore.version;

// crypto
bitcore.crypto = {};
bitcore.crypto.BN = require('./lib/crypto/bn');
bitcore.crypto.ECDSA = require('./lib/crypto/ecdsa');
bitcore.crypto.Hash = require('./lib/crypto/hash');
bitcore.crypto.Random = require('./lib/crypto/random');
bitcore.crypto.Point = require('./lib/crypto/point');
bitcore.crypto.Signature = require('./lib/crypto/signature');

// encoding
bitcore.encoding = {};
bitcore.encoding.Base58 = require('./lib/encoding/base58');
bitcore.encoding.Base58Check = require('./lib/encoding/base58check');
bitcore.encoding.BufferReader = require('./lib/encoding/bufferreader');
bitcore.encoding.BufferWriter = require('./lib/encoding/bufferwriter');
bitcore.encoding.Varint = require('./lib/encoding/varint');

// utilities
bitcore.util = {};
bitcore.util.buffer = require('./lib/util/buffer');
bitcore.util.js = require('./lib/util/js');
bitcore.util.preconditions = require('./lib/util/preconditions');

// errors thrown by the library
bitcore.errors = require('./lib/errors');

// main bitcoin library
bitcore.Address = require('./lib/address');
bitcore.Block = require('./lib/block');
bitcore.MerkleBlock = require('./lib/block/merkleblock');
bitcore.BlockHeader = require('./lib/block/blockheader');
bitcore.HDPrivateKey = require('./lib/hdprivatekey.js');
bitcore.HDPublicKey = require('./lib/hdpublickey.js');
bitcore.Networks = require('./lib/networks');
bitcore.Opcode = require('./lib/opcode');
bitcore.PrivateKey = require('./lib/privatekey');
bitcore.PublicKey = require('./lib/publickey');
bitcore.Script = require('./lib/script');
bitcore.Transaction = require('./lib/transaction');
bitcore.GovObject = require('./lib/govobject');
bitcore.URI = require('./lib/uri');
bitcore.Unit = require('./lib/unit');

// dependencies, subject to change
bitcore.deps = {};
bitcore.deps.bnjs = require('bn.js');
bitcore.deps.bs58 = require('bs58');
bitcore.deps.Buffer = Buffer;
bitcore.deps.elliptic = require('elliptic');
bitcore.deps._ = require('lodash');

// Internal usage, exposed for testing/advanced tweaking
bitcore._HDKeyCache = require('./lib/hdkeycache');
bitcore.Transaction.sighash = require('./lib/transaction/sighash');

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
},{"./lib/address":1,"./lib/block":4,"./lib/block/blockheader":3,"./lib/block/merkleblock":5,"./lib/crypto/bn":6,"./lib/crypto/ecdsa":7,"./lib/crypto/hash":8,"./lib/crypto/point":9,"./lib/crypto/random":10,"./lib/crypto/signature":11,"./lib/encoding/base58":12,"./lib/encoding/base58check":13,"./lib/encoding/bufferreader":14,"./lib/encoding/bufferwriter":15,"./lib/encoding/varint":16,"./lib/errors":17,"./lib/govobject":20,"./lib/hdkeycache":22,"./lib/hdprivatekey.js":23,"./lib/hdpublickey.js":24,"./lib/networks":25,"./lib/opcode":26,"./lib/privatekey":27,"./lib/publickey":28,"./lib/script":29,"./lib/transaction":32,"./lib/transaction/sighash":40,"./lib/unit":44,"./lib/uri":45,"./lib/util/buffer":46,"./lib/util/js":47,"./lib/util/preconditions":48,"./package.json":211,"bn.js":65,"bs58":92,"buffer":95,"elliptic":114,"lodash":142}]},{},[]);
