mirror of
https://github.com/seigler/dash-docs
synced 2025-07-27 09:46:12 +00:00
145 lines
101 KiB
HTML
145 lines
101 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
|
|
<meta name="generator" content="Doxygen 1.8.14"/>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1"/>
|
|
<title>Dash Core: src/secp256k1/src/field_5x52_impl.h Source File</title>
|
|
<link href="tabs.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="jquery.js"></script>
|
|
<script type="text/javascript" src="dynsections.js"></script>
|
|
<link href="navtree.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="resize.js"></script>
|
|
<script type="text/javascript" src="navtreedata.js"></script>
|
|
<script type="text/javascript" src="navtree.js"></script>
|
|
<script type="text/javascript">
|
|
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
|
|
$(document).ready(initResizable);
|
|
/* @license-end */</script>
|
|
<link href="search/search.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="search/searchdata.js"></script>
|
|
<script type="text/javascript" src="search/search.js"></script>
|
|
<link href="doxygen.css" rel="stylesheet" type="text/css" />
|
|
</head>
|
|
<body>
|
|
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
|
|
<div id="titlearea">
|
|
<table cellspacing="0" cellpadding="0">
|
|
<tbody>
|
|
<tr style="height: 56px;">
|
|
<td id="projectlogo"><img alt="Logo" src="bitcoin_logo_doxygen.png"/></td>
|
|
<td id="projectalign" style="padding-left: 0.5em;">
|
|
<div id="projectname">Dash Core
|
|
 <span id="projectnumber">0.12.2.1</span>
|
|
</div>
|
|
<div id="projectbrief">P2P Digital Currency</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.8.14 -->
|
|
<script type="text/javascript">
|
|
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
|
|
var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
|
/* @license-end */
|
|
</script>
|
|
<script type="text/javascript" src="menudata.js"></script>
|
|
<script type="text/javascript" src="menu.js"></script>
|
|
<script type="text/javascript">
|
|
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
|
|
$(function() {
|
|
initMenu('',true,false,'search.php','Search');
|
|
$(document).ready(function() { init_search(); });
|
|
});
|
|
/* @license-end */</script>
|
|
<div id="main-nav"></div>
|
|
</div><!-- top -->
|
|
<div id="side-nav" class="ui-resizable side-nav-resizable">
|
|
<div id="nav-tree">
|
|
<div id="nav-tree-contents">
|
|
<div id="nav-sync" class="sync"></div>
|
|
</div>
|
|
</div>
|
|
<div id="splitbar" style="-moz-user-select:none;"
|
|
class="ui-resizable-handle">
|
|
</div>
|
|
</div>
|
|
<script type="text/javascript">
|
|
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
|
|
$(document).ready(function(){initNavTree('field__5x52__impl_8h_source.html','');});
|
|
/* @license-end */
|
|
</script>
|
|
<div id="doc-content">
|
|
<!-- window showing the filter options -->
|
|
<div id="MSearchSelectWindow"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
onkeydown="return searchBox.OnSearchSelectKey(event)">
|
|
</div>
|
|
|
|
<!-- iframe showing the search results (closed by default) -->
|
|
<div id="MSearchResultsWindow">
|
|
<iframe src="javascript:void(0)" frameborder="0"
|
|
name="MSearchResults" id="MSearchResults">
|
|
</iframe>
|
|
</div>
|
|
|
|
<div class="header">
|
|
<div class="headertitle">
|
|
<div class="title">field_5x52_impl.h</div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
<a href="field__5x52__impl_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/**********************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2013, 2014 Pieter Wuille *</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Distributed under the MIT software license, see the accompanying *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * file COPYING or http://www.opensource.org/licenses/mit-license.php.*</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> **********************************************************************/</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#ifndef _SECP256K1_FIELD_REPR_IMPL_H_</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#define _SECP256K1_FIELD_REPR_IMPL_H_</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#if defined HAVE_CONFIG_H</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "<a class="code" href="libsecp256k1-config_8h.html">libsecp256k1-config.h</a>"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <string.h></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "<a class="code" href="secp256k1_2src_2util_8h.html">util.h</a>"</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "<a class="code" href="num_8h.html">num.h</a>"</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "<a class="code" href="field_8h.html">field.h</a>"</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#if defined(USE_ASM_X86_64)</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "<a class="code" href="field__5x52__asm__impl_8h.html">field_5x52_asm_impl.h</a>"</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "<a class="code" href="field__5x52__int128__impl_8h.html">field_5x52_int128_impl.h</a>"</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a) {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">const</span> uint64_t *d = a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">int</span> <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> = a->normalized ? 1 : 2 * a->magnitude, r = 1;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="comment">/* secp256k1 'p' value defined in "Standards for Efficient Cryptography" (SEC2) 2.7.1. */</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  r &= (d[0] <= 0xFFFFFFFFFFFFFULL * <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>);</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  r &= (d[1] <= 0xFFFFFFFFFFFFFULL * <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>);</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  r &= (d[2] <= 0xFFFFFFFFFFFFFULL * <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>);</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  r &= (d[3] <= 0xFFFFFFFFFFFFFULL * <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>);</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  r &= (d[4] <= 0x0FFFFFFFFFFFFULL * <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>);</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  r &= (a->magnitude >= 0);</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  r &= (a->magnitude <= 2048);</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (a->normalized) {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  r &= (a->magnitude <= 1);</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">if</span> (r && (d[4] == 0x0FFFFFFFFFFFFULL) && ((d[3] & d[2] & d[1]) == 0xFFFFFFFFFFFFFULL)) {</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  r &= (d[0] < 0xFFFFEFFFFFC2FULL);</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  }</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(r == 1);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> }</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1"> 54</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a) {</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  (void)a;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> }</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div><div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a8e925e94d5a7330d2ae68f6642d0c7b9"> 59</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a8e925e94d5a7330d2ae68f6642d0c7b9">secp256k1_fe_normalize</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r) {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  uint64_t t0 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0], t1 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1], t2 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2], t3 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3], t4 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4];</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">/* Reduce t4 at the start so there will be at most a single carry from the first pass */</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  uint64_t <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  uint64_t x = t4 >> 48; t4 &= 0x0FFFFFFFFFFFFULL;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">/* The first pass ensures the magnitude is 1, ... */</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  t0 += x * 0x1000003D1ULL;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  t1 += (t0 >> 52); t0 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL; <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> = t1;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL; <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> &= t2;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL; <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> &= t3;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">/* ... except for a possible carry at bit 48 of t4 (i.e. bit 256 of the field element) */</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(t4 >> 49 == 0);</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">/* At most a single final reduction is needed; check if the value is >= the field characteristic */</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  x = (t4 >> 48) | ((t4 == 0x0FFFFFFFFFFFFULL) & (<a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> == 0xFFFFFFFFFFFFFULL)</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  & (t0 >= 0xFFFFEFFFFFC2FULL));</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">/* Apply the final reduction (for constant-time behaviour, we do it always) */</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  t0 += x * 0x1000003D1ULL;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  t1 += (t0 >> 52); t0 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">/* If t4 didn't carry to bit 48 already, then it should have after any final reduction */</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(t4 >> 48 == x);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">/* Mask off the possible multiple of 2^256 from the final reduction */</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  t4 &= 0x0FFFFFFFFFFFFULL;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] = t0; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] = t1; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] = t2; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] = t3; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] = t4;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  r->magnitude = 1;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  r->normalized = 1;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(r);</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> }</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a0aaec7df2f708a451a8e1f41a943d8b1"> 102</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a0aaec7df2f708a451a8e1f41a943d8b1">secp256k1_fe_normalize_weak</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r) {</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  uint64_t t0 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0], t1 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1], t2 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2], t3 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3], t4 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4];</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">/* Reduce t4 at the start so there will be at most a single carry from the first pass */</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  uint64_t x = t4 >> 48; t4 &= 0x0FFFFFFFFFFFFULL;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="comment">/* The first pass ensures the magnitude is 1, ... */</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  t0 += x * 0x1000003D1ULL;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  t1 += (t0 >> 52); t0 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="comment">/* ... except for a possible carry at bit 48 of t4 (i.e. bit 256 of the field element) */</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(t4 >> 49 == 0);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] = t0; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] = t1; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] = t2; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] = t3; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] = t4;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  r->magnitude = 1;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(r);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> }</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a2d45c987537eadb2923c93aa3af9db71"> 126</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a2d45c987537eadb2923c93aa3af9db71">secp256k1_fe_normalize_var</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r) {</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  uint64_t t0 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0], t1 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1], t2 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2], t3 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3], t4 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4];</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">/* Reduce t4 at the start so there will be at most a single carry from the first pass */</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  uint64_t <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  uint64_t x = t4 >> 48; t4 &= 0x0FFFFFFFFFFFFULL;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="comment">/* The first pass ensures the magnitude is 1, ... */</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  t0 += x * 0x1000003D1ULL;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  t1 += (t0 >> 52); t0 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL; <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> = t1;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL; <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> &= t2;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL; <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> &= t3;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="comment">/* ... except for a possible carry at bit 48 of t4 (i.e. bit 256 of the field element) */</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(t4 >> 49 == 0);</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">/* At most a single final reduction is needed; check if the value is >= the field characteristic */</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  x = (t4 >> 48) | ((t4 == 0x0FFFFFFFFFFFFULL) & (<a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> == 0xFFFFFFFFFFFFFULL)</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  & (t0 >= 0xFFFFEFFFFFC2FULL));</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">if</span> (x) {</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  t0 += 0x1000003D1ULL;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  t1 += (t0 >> 52); t0 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">/* If t4 didn't carry to bit 48 already, then it should have after any final reduction */</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(t4 >> 48 == x);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">/* Mask off the possible multiple of 2^256 from the final reduction */</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  t4 &= 0x0FFFFFFFFFFFFULL;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  }</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] = t0; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] = t1; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] = t2; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] = t3; r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] = t4;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  r->magnitude = 1;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  r->normalized = 1;</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(r);</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> }</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#ac91a9780fb4f20634c2d5040e9f44936"> 170</a></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="field__5x52__impl_8h.html#ac91a9780fb4f20634c2d5040e9f44936">secp256k1_fe_normalizes_to_zero</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r) {</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  uint64_t t0 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0], t1 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1], t2 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2], t3 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3], t4 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4];</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">/* z0 tracks a possible raw value of 0, z1 tracks a possible raw value of P */</span></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  uint64_t z0, z1;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">/* Reduce t4 at the start so there will be at most a single carry from the first pass */</span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  uint64_t x = t4 >> 48; t4 &= 0x0FFFFFFFFFFFFULL;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">/* The first pass ensures the magnitude is 1, ... */</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  t0 += x * 0x1000003D1ULL;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  t1 += (t0 >> 52); t0 &= 0xFFFFFFFFFFFFFULL; z0 = t0; z1 = t0 ^ 0x1000003D0ULL;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL; z0 |= t1; z1 &= t1;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL; z0 |= t2; z1 &= t2;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL; z0 |= t3; z1 &= t3;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  z0 |= t4; z1 &= t4 ^ 0xF000000000000ULL;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="comment">/* ... except for a possible carry at bit 48 of t4 (i.e. bit 256 of the field element) */</span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(t4 >> 49 == 0);</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">return</span> (z0 == 0) | (z1 == 0xFFFFFFFFFFFFFULL);</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> }</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div><div class="line"><a name="l00193"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a67adb176b8e6efd2d2475a9d0a199e18"> 193</a></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="field__5x52__impl_8h.html#a67adb176b8e6efd2d2475a9d0a199e18">secp256k1_fe_normalizes_to_zero_var</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r) {</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  uint64_t t0, t1, t2, t3, t4;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  uint64_t z0, z1;</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  uint64_t x;</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  t0 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0];</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  t4 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4];</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">/* Reduce t4 at the start so there will be at most a single carry from the first pass */</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  x = t4 >> 48;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="comment">/* The first pass ensures the magnitude is 1, ... */</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  t0 += x * 0x1000003D1ULL;</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="comment">/* z0 tracks a possible raw value of 0, z1 tracks a possible raw value of P */</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  z0 = t0 & 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  z1 = z0 ^ 0x1000003D0ULL;</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">/* Fast return path should catch the majority of cases */</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">if</span> ((z0 != 0ULL) & (z1 != 0xFFFFFFFFFFFFFULL)) {</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  }</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  t1 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1];</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  t2 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2];</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  t3 = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3];</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  t4 &= 0x0FFFFFFFFFFFFULL;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  t1 += (t0 >> 52);</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL; z0 |= t1; z1 &= t1;</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL; z0 |= t2; z1 &= t2;</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL; z0 |= t3; z1 &= t3;</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  z0 |= t4; z1 &= t4 ^ 0xF000000000000ULL;</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="comment">/* ... except for a possible carry at bit 48 of t4 (i.e. bit 256 of the field element) */</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(t4 >> 49 == 0);</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">return</span> (z0 == 0) | (z1 == 0xFFFFFFFFFFFFFULL);</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> }</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div><div class="line"><a name="l00234"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a09de0a9b9315eb138ba2fb9ae390c37b"> 234</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a09de0a9b9315eb138ba2fb9ae390c37b">secp256k1_fe_set_int</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r, <span class="keywordtype">int</span> a) {</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] = a;</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] = 0;</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  r->magnitude = 1;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  r->normalized = 1;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(r);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> }</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div><div class="line"><a name="l00244"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a26a8258f312903d18081c6c15a571140"> 244</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="field__5x52__impl_8h.html#a26a8258f312903d18081c6c15a571140">secp256k1_fe_is_zero</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a) {</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keyword">const</span> uint64_t *t = a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(a->normalized);</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(a);</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">return</span> (t[0] | t[1] | t[2] | t[3] | t[4]) == 0;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> }</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> </div><div class="line"><a name="l00253"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a9f95c862e02af8bab643984456ac5585"> 253</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="field__5x52__impl_8h.html#a9f95c862e02af8bab643984456ac5585">secp256k1_fe_is_odd</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a) {</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(a->normalized);</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(a);</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordflow">return</span> a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] & 1;</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> }</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div><div class="line"><a name="l00261"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#aa213f05a02544f894a8829f672b6e4ea"> 261</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#aa213f05a02544f894a8829f672b6e4ea">secp256k1_fe_clear</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a) {</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  a->magnitude = 0;</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  a->normalized = 1;</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordflow">for</span> (i=0; i<5; i++) {</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[i] = 0;</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  }</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> }</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> </div><div class="line"><a name="l00272"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#af372f2088796ef5338bb43dbb6dd5277"> 272</a></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="field__5x52__impl_8h.html#af372f2088796ef5338bb43dbb6dd5277">secp256k1_fe_cmp_var</a>(<span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a, <span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *b) {</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(a->normalized);</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(b->normalized);</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(a);</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(b);</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">for</span> (i = 4; i >= 0; i--) {</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">if</span> (a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[i] > b-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[i]) {</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  }</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">if</span> (a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[i] < b-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[i]) {</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">return</span> -1;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  }</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  }</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> }</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div><div class="line"><a name="l00291"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a5c86a65052e3b135919c00fe2233a43d"> 291</a></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="field__5x52__impl_8h.html#a5c86a65052e3b135919c00fe2233a43d">secp256k1_fe_set_b32</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *a) {</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] = r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] = 0;</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">for</span> (i=0; i<32; i++) {</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keywordtype">int</span> j;</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">for</span> (j=0; j<2; j++) {</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordtype">int</span> limb = (8*i+4*j)/52;</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordtype">int</span> shift = (8*i+4*j)%52;</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[limb] |= (uint64_t)((a[31-i] >> (4*j)) & 0xF) << shift;</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  }</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  }</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordflow">if</span> (r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] == 0x0FFFFFFFFFFFFULL && (r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] & r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] & r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1]) == 0xFFFFFFFFFFFFFULL && r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] >= 0xFFFFEFFFFFC2FULL) {</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  }</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  r->magnitude = 1;</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  r->normalized = 1;</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(r);</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> }</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> </div><div class="line"><a name="l00314"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#abb1017649be14b9ac1823be3c573e542"> 314</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#abb1017649be14b9ac1823be3c573e542">secp256k1_fe_get_b32</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a) {</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(a->normalized);</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(a);</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">for</span> (i=0; i<32; i++) {</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keywordtype">int</span> j;</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordtype">int</span> c = 0;</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">for</span> (j=0; j<2; j++) {</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordtype">int</span> limb = (8*i+4*j)/52;</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keywordtype">int</span> shift = (8*i+4*j)%52;</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  c |= ((a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[limb] >> shift) & 0xF) << (4 * j);</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  }</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  r[31-i] = c;</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  }</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> }</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span> </div><div class="line"><a name="l00332"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a83eb4b272cebe12d50cce564f6a7f86c"> 332</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a83eb4b272cebe12d50cce564f6a7f86c">secp256k1_fe_negate</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a, <span class="keywordtype">int</span> <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>) {</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(a->magnitude <= <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a>);</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(a);</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] = 0xFFFFEFFFFFC2FULL * 2 * (<a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> + 1) - a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0];</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] = 0xFFFFFFFFFFFFFULL * 2 * (<a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> + 1) - a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1];</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] = 0xFFFFFFFFFFFFFULL * 2 * (<a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> + 1) - a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2];</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] = 0xFFFFFFFFFFFFFULL * 2 * (<a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> + 1) - a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3];</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] = 0x0FFFFFFFFFFFFULL * 2 * (<a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> + 1) - a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4];</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> #ifdef VERIFY</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  r->magnitude = <a class="code" href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">m</a> + 1;</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  r->normalized = 0;</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(r);</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span> }</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> </div><div class="line"><a name="l00349"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a4cedb86cbf177037f187b4161f3a1c0e"> 349</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a4cedb86cbf177037f187b4161f3a1c0e">secp256k1_fe_mul_int</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r, <span class="keywordtype">int</span> a) {</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] *= a;</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] *= a;</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] *= a;</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] *= a;</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] *= a;</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  r->magnitude *= a;</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  r->normalized = 0;</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(r);</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span> }</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span> </div><div class="line"><a name="l00362"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#abe12bdeda73ed4f520046c4d462a2f60"> 362</a></span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#abe12bdeda73ed4f520046c4d462a2f60">secp256k1_fe_add</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a) {</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(a);</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] += a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0];</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] += a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1];</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] += a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2];</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] += a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3];</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] += a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4];</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  r->magnitude += a->magnitude;</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  r->normalized = 0;</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(r);</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> }</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div><div class="line"><a name="l00378"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a542b97d2574d9687c563d002587cf9a2"> 378</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a542b97d2574d9687c563d002587cf9a2">secp256k1_fe_mul</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a, <span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> * <a class="code" href="secp256k1_2src_2util_8h.html#ad3e284f8cb00286e85a753265f6b17b8">SECP256K1_RESTRICT</a> b) {</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(a->magnitude <= 8);</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(b->magnitude <= 8);</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(a);</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(b);</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(r != b);</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <a class="code" href="field__10x26__impl_8h.html#a58fd521434363c0f4e65ace40dd7fd16">secp256k1_fe_mul_inner</a>(r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>, a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>, b->n);</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  r->magnitude = 1;</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  r->normalized = 0;</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(r);</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span> }</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> </div><div class="line"><a name="l00394"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a6cbe550ca5eb35e683b1c8d68d8de26b"> 394</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a6cbe550ca5eb35e683b1c8d68d8de26b">secp256k1_fe_sqr</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a) {</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(a->magnitude <= 8);</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(a);</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <a class="code" href="field__10x26__impl_8h.html#a1fe3bc54e672c16e7473dcb1145edb29">secp256k1_fe_sqr_inner</a>(r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>, a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>);</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  r->magnitude = 1;</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  r->normalized = 0;</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <a class="code" href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a>(r);</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span> }</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span> </div><div class="line"><a name="l00407"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a6e3018657241b547badcdfe369a95eba"> 407</a></span> <span class="keyword">static</span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a6e3018657241b547badcdfe369a95eba">secp256k1_fe_cmov</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a, <span class="keywordtype">int</span> flag) {</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  uint64_t mask0, mask1;</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  mask0 = flag + ~((uint64_t)0);</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  mask1 = ~mask0;</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] = (r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] & mask0) | (a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] & mask1);</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] = (r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] & mask0) | (a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] & mask1);</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] = (r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] & mask0) | (a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] & mask1);</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] = (r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] & mask0) | (a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] & mask1);</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] = (r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] & mask0) | (a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] & mask1);</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keywordflow">if</span> (a->magnitude > r->magnitude) {</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  r->magnitude = a->magnitude;</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  }</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  r->normalized &= a->normalized;</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> }</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> </div><div class="line"><a name="l00424"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#a60b0cc43eca8db2069ecbbcca15b60cb"> 424</a></span> <span class="keyword">static</span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#a60b0cc43eca8db2069ecbbcca15b60cb">secp256k1_fe_storage_cmov</a>(<a class="code" href="structsecp256k1__fe__storage.html">secp256k1_fe_storage</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__fe__storage.html">secp256k1_fe_storage</a> *a, <span class="keywordtype">int</span> flag) {</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  uint64_t mask0, mask1;</div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  mask0 = flag + ~((uint64_t)0);</div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  mask1 = ~mask0;</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[0] = (r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[0] & mask0) | (a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[0] & mask1);</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[1] = (r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[1] & mask0) | (a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[1] & mask1);</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[2] = (r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[2] & mask0) | (a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[2] & mask1);</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[3] = (r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[3] & mask0) | (a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[3] & mask1);</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span> }</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span> </div><div class="line"><a name="l00434"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#ab2813c5c17c63e222d5a15a60f239b12"> 434</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#ab2813c5c17c63e222d5a15a60f239b12">secp256k1_fe_to_storage</a>(<a class="code" href="structsecp256k1__fe__storage.html">secp256k1_fe_storage</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *a) {</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <a class="code" href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a>(a->normalized);</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[0] = a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] | a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] << 52;</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[1] = a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] >> 12 | a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] << 40;</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[2] = a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] >> 24 | a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] << 28;</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  r-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[3] = a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] >> 36 | a-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] << 16;</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> }</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span> </div><div class="line"><a name="l00444"></a><span class="lineno"><a class="line" href="field__5x52__impl_8h.html#abaa30147599b55339c1f8005edb18fd7"> 444</a></span> <span class="keyword">static</span> <a class="code" href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a> <span class="keywordtype">void</span> <a class="code" href="field__5x52__impl_8h.html#abaa30147599b55339c1f8005edb18fd7">secp256k1_fe_from_storage</a>(<a class="code" href="structsecp256k1__fe.html">secp256k1_fe</a> *r, <span class="keyword">const</span> <a class="code" href="structsecp256k1__fe__storage.html">secp256k1_fe_storage</a> *a) {</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[0] = a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[0] & 0xFFFFFFFFFFFFFULL;</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[1] = a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[0] >> 52 | ((a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[1] << 12) & 0xFFFFFFFFFFFFFULL);</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[2] = a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[1] >> 40 | ((a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[2] << 24) & 0xFFFFFFFFFFFFFULL);</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[3] = a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[2] >> 28 | ((a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[3] << 36) & 0xFFFFFFFFFFFFFULL);</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  r-><a class="code" href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">n</a>[4] = a-><a class="code" href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">n</a>[3] >> 16;</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="preprocessor">#ifdef VERIFY</span></div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  r->magnitude = 1;</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  r->normalized = 1;</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span> }</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="secp256k1_2src_2util_8h_html_aca8ac5ae73fd966db106de59160a178b"><div class="ttname"><a href="secp256k1_2src_2util_8h.html#aca8ac5ae73fd966db106de59160a178b">VERIFY_CHECK</a></div><div class="ttdeci">#define VERIFY_CHECK(cond)</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_2src_2util_8h_source.html#l00064">util.h:64</a></div></div>
|
|
<div class="ttc" id="structsecp256k1__fe_html"><div class="ttname"><a href="structsecp256k1__fe.html">secp256k1_fe</a></div><div class="ttdef"><b>Definition:</b> <a href="field__10x26_8h_source.html#l00012">field_10x26.h:12</a></div></div>
|
|
<div class="ttc" id="field__10x26__impl_8h_html_a1fe3bc54e672c16e7473dcb1145edb29"><div class="ttname"><a href="field__10x26__impl_8h.html#a1fe3bc54e672c16e7473dcb1145edb29">secp256k1_fe_sqr_inner</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_fe_sqr_inner(uint32_t *r, const uint32_t *a)</div><div class="ttdef"><b>Definition:</b> <a href="field__10x26__impl_8h_source.html#l00767">field_10x26_impl.h:767</a></div></div>
|
|
<div class="ttc" id="libsecp256k1-config_8h_html"><div class="ttname"><a href="libsecp256k1-config_8h.html">libsecp256k1-config.h</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_abb1017649be14b9ac1823be3c573e542"><div class="ttname"><a href="field__5x52__impl_8h.html#abb1017649be14b9ac1823be3c573e542">secp256k1_fe_get_b32</a></div><div class="ttdeci">static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe *a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00314">field_5x52_impl.h:314</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a5c86a65052e3b135919c00fe2233a43d"><div class="ttname"><a href="field__5x52__impl_8h.html#a5c86a65052e3b135919c00fe2233a43d">secp256k1_fe_set_b32</a></div><div class="ttdeci">static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00291">field_5x52_impl.h:291</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a6e3018657241b547badcdfe369a95eba"><div class="ttname"><a href="field__5x52__impl_8h.html#a6e3018657241b547badcdfe369a95eba">secp256k1_fe_cmov</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00407">field_5x52_impl.h:407</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a6cbe550ca5eb35e683b1c8d68d8de26b"><div class="ttname"><a href="field__5x52__impl_8h.html#a6cbe550ca5eb35e683b1c8d68d8de26b">secp256k1_fe_sqr</a></div><div class="ttdeci">static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00394">field_5x52_impl.h:394</a></div></div>
|
|
<div class="ttc" id="structsecp256k1__fe__storage_html_a63f0548b6674a57ab1d2c6271008c037"><div class="ttname"><a href="structsecp256k1__fe__storage.html#a63f0548b6674a57ab1d2c6271008c037">secp256k1_fe_storage::n</a></div><div class="ttdeci">uint32_t n[8]</div><div class="ttdef"><b>Definition:</b> <a href="field__10x26_8h_source.html#l00042">field_10x26.h:42</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a8e925e94d5a7330d2ae68f6642d0c7b9"><div class="ttname"><a href="field__5x52__impl_8h.html#a8e925e94d5a7330d2ae68f6642d0c7b9">secp256k1_fe_normalize</a></div><div class="ttdeci">static void secp256k1_fe_normalize(secp256k1_fe *r)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00059">field_5x52_impl.h:59</a></div></div>
|
|
<div class="ttc" id="field__10x26__impl_8h_html_a58fd521434363c0f4e65ace40dd7fd16"><div class="ttname"><a href="field__10x26__impl_8h.html#a58fd521434363c0f4e65ace40dd7fd16">secp256k1_fe_mul_inner</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_fe_mul_inner(uint32_t *r, const uint32_t *a, const uint32_t *SECP256K1_RESTRICT b)</div><div class="ttdef"><b>Definition:</b> <a href="field__10x26__impl_8h_source.html#l00438">field_10x26_impl.h:438</a></div></div>
|
|
<div class="ttc" id="field__5x52__int128__impl_8h_html"><div class="ttname"><a href="field__5x52__int128__impl_8h.html">field_5x52_int128_impl.h</a></div></div>
|
|
<div class="ttc" id="namespacelinearize-data_html_af01cfbce273b138c21938509627f15aa"><div class="ttname"><a href="namespacelinearize-data.html#af01cfbce273b138c21938509627f15aa">linearize-data.m</a></div><div class="ttdeci">m</div><div class="ttdef"><b>Definition:</b> <a href="linearize-data_8py_source.html#l00260">linearize-data.py:260</a></div></div>
|
|
<div class="ttc" id="field__5x52__asm__impl_8h_html"><div class="ttname"><a href="field__5x52__asm__impl_8h.html">field_5x52_asm_impl.h</a></div></div>
|
|
<div class="ttc" id="secp256k1_8h_html_a7ddc487fd46aee88f21cabedb7268b1e"><div class="ttname"><a href="secp256k1_8h.html#a7ddc487fd46aee88f21cabedb7268b1e">SECP256K1_INLINE</a></div><div class="ttdeci">#define SECP256K1_INLINE</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_8h_source.html#l00116">secp256k1.h:116</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_ac91a9780fb4f20634c2d5040e9f44936"><div class="ttname"><a href="field__5x52__impl_8h.html#ac91a9780fb4f20634c2d5040e9f44936">secp256k1_fe_normalizes_to_zero</a></div><div class="ttdeci">static int secp256k1_fe_normalizes_to_zero(secp256k1_fe *r)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00170">field_5x52_impl.h:170</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a52fb44274d87bef8800379942f4424a1"><div class="ttname"><a href="field__5x52__impl_8h.html#a52fb44274d87bef8800379942f4424a1">secp256k1_fe_verify</a></div><div class="ttdeci">static void secp256k1_fe_verify(const secp256k1_fe *a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00054">field_5x52_impl.h:54</a></div></div>
|
|
<div class="ttc" id="secp256k1_2src_2util_8h_html_ad3e284f8cb00286e85a753265f6b17b8"><div class="ttname"><a href="secp256k1_2src_2util_8h.html#ad3e284f8cb00286e85a753265f6b17b8">SECP256K1_RESTRICT</a></div><div class="ttdeci">#define SECP256K1_RESTRICT</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_2src_2util_8h_source.html#l00086">util.h:86</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_ab2813c5c17c63e222d5a15a60f239b12"><div class="ttname"><a href="field__5x52__impl_8h.html#ab2813c5c17c63e222d5a15a60f239b12">secp256k1_fe_to_storage</a></div><div class="ttdeci">static void secp256k1_fe_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00434">field_5x52_impl.h:434</a></div></div>
|
|
<div class="ttc" id="secp256k1_2src_2util_8h_html"><div class="ttname"><a href="secp256k1_2src_2util_8h.html">util.h</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a60b0cc43eca8db2069ecbbcca15b60cb"><div class="ttname"><a href="field__5x52__impl_8h.html#a60b0cc43eca8db2069ecbbcca15b60cb">secp256k1_fe_storage_cmov</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_fe_storage_cmov(secp256k1_fe_storage *r, const secp256k1_fe_storage *a, int flag)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00424">field_5x52_impl.h:424</a></div></div>
|
|
<div class="ttc" id="structsecp256k1__fe_html_a4e7c00a989d1da635e7ffd33105d62df"><div class="ttname"><a href="structsecp256k1__fe.html#a4e7c00a989d1da635e7ffd33105d62df">secp256k1_fe::n</a></div><div class="ttdeci">uint32_t n[10]</div><div class="ttdef"><b>Definition:</b> <a href="field__10x26_8h_source.html#l00014">field_10x26.h:14</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a4cedb86cbf177037f187b4161f3a1c0e"><div class="ttname"><a href="field__5x52__impl_8h.html#a4cedb86cbf177037f187b4161f3a1c0e">secp256k1_fe_mul_int</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_fe_mul_int(secp256k1_fe *r, int a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00349">field_5x52_impl.h:349</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a67adb176b8e6efd2d2475a9d0a199e18"><div class="ttname"><a href="field__5x52__impl_8h.html#a67adb176b8e6efd2d2475a9d0a199e18">secp256k1_fe_normalizes_to_zero_var</a></div><div class="ttdeci">static int secp256k1_fe_normalizes_to_zero_var(secp256k1_fe *r)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00193">field_5x52_impl.h:193</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a83eb4b272cebe12d50cce564f6a7f86c"><div class="ttname"><a href="field__5x52__impl_8h.html#a83eb4b272cebe12d50cce564f6a7f86c">secp256k1_fe_negate</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00332">field_5x52_impl.h:332</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a0aaec7df2f708a451a8e1f41a943d8b1"><div class="ttname"><a href="field__5x52__impl_8h.html#a0aaec7df2f708a451a8e1f41a943d8b1">secp256k1_fe_normalize_weak</a></div><div class="ttdeci">static void secp256k1_fe_normalize_weak(secp256k1_fe *r)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00102">field_5x52_impl.h:102</a></div></div>
|
|
<div class="ttc" id="field_8h_html"><div class="ttname"><a href="field_8h.html">field.h</a></div></div>
|
|
<div class="ttc" id="num_8h_html"><div class="ttname"><a href="num_8h.html">num.h</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_aa213f05a02544f894a8829f672b6e4ea"><div class="ttname"><a href="field__5x52__impl_8h.html#aa213f05a02544f894a8829f672b6e4ea">secp256k1_fe_clear</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_fe_clear(secp256k1_fe *a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00261">field_5x52_impl.h:261</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a26a8258f312903d18081c6c15a571140"><div class="ttname"><a href="field__5x52__impl_8h.html#a26a8258f312903d18081c6c15a571140">secp256k1_fe_is_zero</a></div><div class="ttdeci">static SECP256K1_INLINE int secp256k1_fe_is_zero(const secp256k1_fe *a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00244">field_5x52_impl.h:244</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_af372f2088796ef5338bb43dbb6dd5277"><div class="ttname"><a href="field__5x52__impl_8h.html#af372f2088796ef5338bb43dbb6dd5277">secp256k1_fe_cmp_var</a></div><div class="ttdeci">static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00272">field_5x52_impl.h:272</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a542b97d2574d9687c563d002587cf9a2"><div class="ttname"><a href="field__5x52__impl_8h.html#a542b97d2574d9687c563d002587cf9a2">secp256k1_fe_mul</a></div><div class="ttdeci">static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe *SECP256K1_RESTRICT b)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00378">field_5x52_impl.h:378</a></div></div>
|
|
<div class="ttc" id="structsecp256k1__fe__storage_html"><div class="ttname"><a href="structsecp256k1__fe__storage.html">secp256k1_fe_storage</a></div><div class="ttdef"><b>Definition:</b> <a href="field__10x26_8h_source.html#l00041">field_10x26.h:41</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a2d45c987537eadb2923c93aa3af9db71"><div class="ttname"><a href="field__5x52__impl_8h.html#a2d45c987537eadb2923c93aa3af9db71">secp256k1_fe_normalize_var</a></div><div class="ttdeci">static void secp256k1_fe_normalize_var(secp256k1_fe *r)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00126">field_5x52_impl.h:126</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_abe12bdeda73ed4f520046c4d462a2f60"><div class="ttname"><a href="field__5x52__impl_8h.html#abe12bdeda73ed4f520046c4d462a2f60">secp256k1_fe_add</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00362">field_5x52_impl.h:362</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_abaa30147599b55339c1f8005edb18fd7"><div class="ttname"><a href="field__5x52__impl_8h.html#abaa30147599b55339c1f8005edb18fd7">secp256k1_fe_from_storage</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_fe_from_storage(secp256k1_fe *r, const secp256k1_fe_storage *a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00444">field_5x52_impl.h:444</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a9f95c862e02af8bab643984456ac5585"><div class="ttname"><a href="field__5x52__impl_8h.html#a9f95c862e02af8bab643984456ac5585">secp256k1_fe_is_odd</a></div><div class="ttdeci">static SECP256K1_INLINE int secp256k1_fe_is_odd(const secp256k1_fe *a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00253">field_5x52_impl.h:253</a></div></div>
|
|
<div class="ttc" id="field__5x52__impl_8h_html_a09de0a9b9315eb138ba2fb9ae390c37b"><div class="ttname"><a href="field__5x52__impl_8h.html#a09de0a9b9315eb138ba2fb9ae390c37b">secp256k1_fe_set_int</a></div><div class="ttdeci">static SECP256K1_INLINE void secp256k1_fe_set_int(secp256k1_fe *r, int a)</div><div class="ttdef"><b>Definition:</b> <a href="field__5x52__impl_8h_source.html#l00234">field_5x52_impl.h:234</a></div></div>
|
|
</div><!-- fragment --></div><!-- contents -->
|
|
</div><!-- doc-content -->
|
|
<!-- start footer part -->
|
|
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
|
|
<ul>
|
|
<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_44f34d1e62fda08bdb4ca69ab2d205ae.html">secp256k1</a></li><li class="navelem"><a class="el" href="dir_8db2ef784512d48b2a7d00369dfaac28.html">src</a></li><li class="navelem"><a class="el" href="field__5x52__impl_8h.html">field_5x52_impl.h</a></li>
|
|
<li class="footer">Generated on Thu Dec 14 2017 13:15:08 for Dash Core by
|
|
<a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.14 </li>
|
|
</ul>
|
|
</div>
|
|
</body>
|
|
</html>
|