num_gmp_impl.h File Reference

#include <string.h>
#include <stdlib.h>
#include <gmp.h>
#include "util.h"
#include "num.h"

Go to the source code of this file.

Macros
#define	secp256k1_num_sanity(a)   do { } while(0)

Functions
static void	secp256k1_num_copy (secp256k1_num *r, const secp256k1_num *a)
static void	secp256k1_num_get_bin (unsigned char *r, unsigned int rlen, const secp256k1_num *a)
static void	secp256k1_num_set_bin (secp256k1_num *r, const unsigned char *a, unsigned int alen)
static void	secp256k1_num_add_abs (secp256k1_num *r, const secp256k1_num *a, const secp256k1_num *b)
static void	secp256k1_num_sub_abs (secp256k1_num *r, const secp256k1_num *a, const secp256k1_num *b)
static void	secp256k1_num_mod (secp256k1_num *r, const secp256k1_num *m)
static void	secp256k1_num_mod_inverse (secp256k1_num *r, const secp256k1_num *a, const secp256k1_num *m)
static int	secp256k1_num_is_zero (const secp256k1_num *a)
static int	secp256k1_num_is_neg (const secp256k1_num *a)
static int	secp256k1_num_cmp (const secp256k1_num *a, const secp256k1_num *b)
static int	secp256k1_num_eq (const secp256k1_num *a, const secp256k1_num *b)
static void	secp256k1_num_subadd (secp256k1_num *r, const secp256k1_num *a, const secp256k1_num *b, int bneg)
static void	secp256k1_num_add (secp256k1_num *r, const secp256k1_num *a, const secp256k1_num *b)
static void	secp256k1_num_sub (secp256k1_num *r, const secp256k1_num *a, const secp256k1_num *b)
static void	secp256k1_num_mul (secp256k1_num *r, const secp256k1_num *a, const secp256k1_num *b)
static void	secp256k1_num_shift (secp256k1_num *r, int bits)
static void	secp256k1_num_negate (secp256k1_num *r)

Macro Definition Documentation

secp256k1_num_sanity

#define secp256k1_num_sanity

(

a

)

do { } while(0)

Definition at line 22 of file num_gmp_impl.h.

Referenced by secp256k1_num_add(), secp256k1_num_mod(), secp256k1_num_mod_inverse(), secp256k1_num_mul(), and secp256k1_num_sub().

Function Documentation

secp256k1_num_add()

static void secp256k1_num_add ( secp256k1_num *  r, const secp256k1_num *  a, const secp256k1_num *  b  )

static

Definition at line 197 of file num_gmp_impl.h.

secp256k1_num_add_abs()

static void secp256k1_num_add_abs ( secp256k1_num *  r, const secp256k1_num *  a, const secp256k1_num *  b  )

static

Definition at line 62 of file num_gmp_impl.h.

Referenced by secp256k1_num_subadd().

secp256k1_num_cmp()

static int secp256k1_num_cmp ( const secp256k1_num *  a, const secp256k1_num *  b  )

static

Definition at line 155 of file num_gmp_impl.h.

Referenced by secp256k1_num_subadd().

secp256k1_num_copy()

static void secp256k1_num_copy ( secp256k1_num *  r, const secp256k1_num *  a  )

static

Definition at line 25 of file num_gmp_impl.h.

secp256k1_num_eq()

static int secp256k1_num_eq ( const secp256k1_num *  a, const secp256k1_num *  b  )

static

Definition at line 165 of file num_gmp_impl.h.

secp256k1_num_get_bin()

static void secp256k1_num_get_bin ( unsigned char *  r, unsigned int  rlen, const secp256k1_num *  a  )

static

Definition at line 29 of file num_gmp_impl.h.

secp256k1_num_is_neg()

static int secp256k1_num_is_neg ( const secp256k1_num *  a )

static

Definition at line 151 of file num_gmp_impl.h.

secp256k1_num_is_zero()

static int secp256k1_num_is_zero ( const secp256k1_num *  a )

static

Definition at line 147 of file num_gmp_impl.h.

Referenced by secp256k1_num_eq().

secp256k1_num_mod()

static void secp256k1_num_mod ( secp256k1_num *  r, const secp256k1_num *  m  )

static

Definition at line 81 of file num_gmp_impl.h.

secp256k1_num_mod_inverse()

static void secp256k1_num_mod_inverse ( secp256k1_num *  r, const secp256k1_num *  a, const secp256k1_num *  m  )

static

mpn_gcdext computes: (G,S) = gcdext(U,V), where

• G = gcd(U,V)
• G = U*S + V*T
• U has equal or more limbs than V, and V has no padding If we set U to be (a padded version of) a, and V = m: G = a*S + m*T G = a*S mod m Assuming G=1: S = 1/a mod m

Definition at line 101 of file num_gmp_impl.h.

secp256k1_num_mul()

static void secp256k1_num_mul ( secp256k1_num *  r, const secp256k1_num *  a, const secp256k1_num *  b  )

static

Definition at line 209 of file num_gmp_impl.h.

secp256k1_num_negate()

static void secp256k1_num_negate ( secp256k1_num *  r )

static

Definition at line 258 of file num_gmp_impl.h.

secp256k1_num_set_bin()

static void secp256k1_num_set_bin ( secp256k1_num *  r, const unsigned char *  a, unsigned int  alen  )

static

Definition at line 45 of file num_gmp_impl.h.

secp256k1_num_shift()

static void secp256k1_num_shift ( secp256k1_num *  r, int  bits  )

static

Definition at line 236 of file num_gmp_impl.h.

secp256k1_num_sub()

static void secp256k1_num_sub ( secp256k1_num *  r, const secp256k1_num *  a, const secp256k1_num *  b  )

static

Definition at line 203 of file num_gmp_impl.h.

secp256k1_num_sub_abs()

static void secp256k1_num_sub_abs ( secp256k1_num *  r, const secp256k1_num *  a, const secp256k1_num *  b  )

static

Definition at line 71 of file num_gmp_impl.h.

Referenced by secp256k1_num_mod(), and secp256k1_num_subadd().

secp256k1_num_subadd()

static void secp256k1_num_subadd ( secp256k1_num *  r, const secp256k1_num *  a, const secp256k1_num *  b, int  bneg  )

static

Definition at line 178 of file num_gmp_impl.h.

Referenced by secp256k1_num_add(), and secp256k1_num_sub().