mirror of
https://github.com/taigrr/arduinolibs
synced 2025-01-18 04:33:12 -08:00
331 lines
39 KiB
HTML
331 lines
39 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 1.8.6"/>
|
|
<title>Arduino Cryptography Library: SHA1.cpp 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="search/search.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="search/search.js"></script>
|
|
<script type="text/javascript">
|
|
$(document).ready(function() { searchBox.OnSelectItem(0); });
|
|
</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 style="padding-left: 0.5em;">
|
|
<div id="projectname">Arduino Cryptography Library
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.8.6 -->
|
|
<script type="text/javascript">
|
|
var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
|
</script>
|
|
<div id="navrow1" class="tabs">
|
|
<ul class="tablist">
|
|
<li><a href="index.html"><span>Main Page</span></a></li>
|
|
<li><a href="pages.html"><span>Related Pages</span></a></li>
|
|
<li><a href="annotated.html"><span>Classes</span></a></li>
|
|
<li class="current"><a href="files.html"><span>Files</span></a></li>
|
|
<li>
|
|
<div id="MSearchBox" class="MSearchBoxInactive">
|
|
<span class="left">
|
|
<img id="MSearchSelect" src="search/mag_sel.png"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
alt=""/>
|
|
<input type="text" id="MSearchField" value="Search" accesskey="S"
|
|
onfocus="searchBox.OnSearchFieldFocus(true)"
|
|
onblur="searchBox.OnSearchFieldFocus(false)"
|
|
onkeyup="searchBox.OnSearchFieldChange(event)"/>
|
|
</span><span class="right">
|
|
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
|
|
</span>
|
|
</div>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
<div id="navrow2" class="tabs2">
|
|
<ul class="tablist">
|
|
<li><a href="files.html"><span>File List</span></a></li>
|
|
</ul>
|
|
</div>
|
|
<!-- window showing the filter options -->
|
|
<div id="MSearchSelectWindow"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
onkeydown="return searchBox.OnSearchSelectKey(event)">
|
|
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Pages</a></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 id="nav-path" class="navpath">
|
|
<ul>
|
|
<li class="navelem"><a class="el" href="dir_bc0718b08fb2015b8e59c47b2805f60c.html">libraries</a></li><li class="navelem"><a class="el" href="dir_d12c1dff49c89877a441c648bfd77d9b.html">CryptoLegacy</a></li><li class="navelem"><a class="el" href="dir_775347adf427fba7017dd40c1dad1e7c.html">src</a></li> </ul>
|
|
</div>
|
|
</div><!-- top -->
|
|
<div class="header">
|
|
<div class="headertitle">
|
|
<div class="title">SHA1.cpp</div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
<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) 2015 Southern Storm Software, Pty Ltd.</span></div>
|
|
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
|
|
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
|
|
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
|
|
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
|
|
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
|
|
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
|
|
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
|
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
|
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
|
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
|
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
|
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
|
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
|
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
|
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
|
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
|
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
|
|
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
|
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
|
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
|
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "SHA1.h"</span></div>
|
|
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "Crypto.h"</span></div>
|
|
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "utility/RotateUtil.h"</span></div>
|
|
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "utility/EndianUtil.h"</span></div>
|
|
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <string.h></span></div>
|
|
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
|
|
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="classSHA1.html#ad49a5108ffd6996b1133bf41224ff726"> 41</a></span> <a class="code" href="classSHA1.html#ad49a5108ffd6996b1133bf41224ff726">SHA1::SHA1</a>()</div>
|
|
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> {</div>
|
|
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <a class="code" href="classSHA1.html#ab71aaf39ed956320054861a2fbfa454f">reset</a>();</div>
|
|
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> }</div>
|
|
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
|
|
<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="classSHA1.html#a8485d7c14fa29286cd3c7acfe438606d"> 49</a></span> <a class="code" href="classSHA1.html#a8485d7c14fa29286cd3c7acfe438606d">SHA1::~SHA1</a>()</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>  clean(state);</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> </div>
|
|
<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="classSHA1.html#ab8cdb7233a8b81be07877049960ddfdd"> 54</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classSHA1.html#ab8cdb7233a8b81be07877049960ddfdd">SHA1::hashSize</a>()<span class="keyword"> const</span></div>
|
|
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keyword"></span>{</div>
|
|
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">return</span> 20;</div>
|
|
<div class="line"><a name="l00057"></a><span class="lineno"> 57</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="classSHA1.html#a816e3fd1a02cf1ecc67866cd8c7c309a"> 59</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classSHA1.html#a816e3fd1a02cf1ecc67866cd8c7c309a">SHA1::blockSize</a>()<span class="keyword"> const</span></div>
|
|
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword"></span>{</div>
|
|
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">return</span> 64;</div>
|
|
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> }</div>
|
|
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
|
|
<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classSHA1.html#ab71aaf39ed956320054861a2fbfa454f"> 64</a></span> <span class="keywordtype">void</span> <a class="code" href="classSHA1.html#ab71aaf39ed956320054861a2fbfa454f">SHA1::reset</a>()</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>  state.h[0] = 0x67452301;</div>
|
|
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  state.h[1] = 0xEFCDAB89;</div>
|
|
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  state.h[2] = 0x98BADCFE;</div>
|
|
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  state.h[3] = 0x10325476;</div>
|
|
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  state.h[4] = 0xC3D2E1F0;</div>
|
|
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  state.chunkSize = 0;</div>
|
|
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  state.length = 0;</div>
|
|
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> }</div>
|
|
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
|
|
<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="classSHA1.html#aec77fbc5015f82bbf7055e535085656a"> 75</a></span> <span class="keywordtype">void</span> <a class="code" href="classSHA1.html#aec77fbc5015f82bbf7055e535085656a">SHA1::update</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len)</div>
|
|
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> {</div>
|
|
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">// Update the total length (in bits, not bytes).</span></div>
|
|
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  state.length += ((uint64_t)len) << 3;</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">// Break the input up into 512-bit chunks and process each in turn.</span></div>
|
|
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">const</span> uint8_t *d = (<span class="keyword">const</span> uint8_t *)data;</div>
|
|
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">while</span> (len > 0) {</div>
|
|
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  uint8_t size = 64 - state.chunkSize;</div>
|
|
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">if</span> (size > len)</div>
|
|
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  size = len;</div>
|
|
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  memcpy(((uint8_t *)state.w) + state.chunkSize, d, size);</div>
|
|
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  state.chunkSize += size;</div>
|
|
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  len -= size;</div>
|
|
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  d += size;</div>
|
|
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">if</span> (state.chunkSize == 64) {</div>
|
|
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  processChunk();</div>
|
|
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  state.chunkSize = 0;</div>
|
|
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }</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> }</div>
|
|
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
|
|
<div class="line"><a name="l00097"></a><span class="lineno"><a class="line" href="classSHA1.html#a5a6a8a6169aa48e0bccadb22a149ab7c"> 97</a></span> <span class="keywordtype">void</span> <a class="code" href="classSHA1.html#a5a6a8a6169aa48e0bccadb22a149ab7c">SHA1::finalize</a>(<span class="keywordtype">void</span> *hash, <span class="keywordtype">size_t</span> len)</div>
|
|
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> {</div>
|
|
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// Pad the last chunk. We may need two padding chunks if there</span></div>
|
|
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// isn't enough room in the first for the padding and length.</span></div>
|
|
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  uint8_t *wbytes = (uint8_t *)state.w;</div>
|
|
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  if (state.chunkSize <= (64 - 9)) {</div>
|
|
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  wbytes[state.chunkSize] = 0x80;</div>
|
|
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  memset(wbytes + state.chunkSize + 1, 0x00, 64 - 8 - (state.chunkSize + 1));</div>
|
|
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  state.w[14] = htobe32((uint32_t)(state.length >> 32));</div>
|
|
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  state.w[15] = htobe32((uint32_t)state.length);</div>
|
|
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  processChunk();</div>
|
|
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  wbytes[state.chunkSize] = 0x80;</div>
|
|
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  memset(wbytes + state.chunkSize + 1, 0x00, 64 - (state.chunkSize + 1));</div>
|
|
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  processChunk();</div>
|
|
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  memset(wbytes, 0x00, 64 - 8);</div>
|
|
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  state.w[14] = htobe32((uint32_t)(state.length >> 32));</div>
|
|
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  state.w[15] = htobe32((uint32_t)state.length);</div>
|
|
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  processChunk();</div>
|
|
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</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>  <span class="comment">// Convert the result into big endian and return it.</span></div>
|
|
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">for</span> (uint8_t posn = 0; posn < 5; ++posn)</div>
|
|
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  state.w[posn] = htobe32(state.h[posn]);</div>
|
|
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
|
|
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">// Copy the hash to the caller's return buffer.</span></div>
|
|
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">if</span> (len > 20)</div>
|
|
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  len = 20;</div>
|
|
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  memcpy(hash, state.w, len);</div>
|
|
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> }</div>
|
|
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
|
|
<div class="line"><a name="l00128"></a><span class="lineno"><a class="line" href="classSHA1.html#a41a159d6565b04d3f620dcd720faaf3f"> 128</a></span> <span class="keywordtype">void</span> <a class="code" href="classSHA1.html#a41a159d6565b04d3f620dcd720faaf3f">SHA1::clear</a>()</div>
|
|
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> {</div>
|
|
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  clean(state);</div>
|
|
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="classSHA1.html#ab71aaf39ed956320054861a2fbfa454f">reset</a>();</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> </div>
|
|
<div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="classSHA1.html#ad0a09a5100d59ff90c04ed5d4071b606"> 134</a></span> <span class="keywordtype">void</span> <a class="code" href="classSHA1.html#ad0a09a5100d59ff90c04ed5d4071b606">SHA1::resetHMAC</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *key, <span class="keywordtype">size_t</span> keyLen)</div>
|
|
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> {</div>
|
|
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="classHash.html#ab6f40c9af91dc3d738d9fcce59af63cc">formatHMACKey</a>(state.w, key, keyLen, 0x36);</div>
|
|
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  state.length += 64 * 8;</div>
|
|
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  processChunk();</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> </div>
|
|
<div class="line"><a name="l00141"></a><span class="lineno"><a class="line" href="classSHA1.html#a791db53fe9d6cc0e383b25f1da0a97b8"> 141</a></span> <span class="keywordtype">void</span> <a class="code" href="classSHA1.html#a791db53fe9d6cc0e383b25f1da0a97b8">SHA1::finalizeHMAC</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *key, <span class="keywordtype">size_t</span> keyLen, <span class="keywordtype">void</span> *hash, <span class="keywordtype">size_t</span> hashLen)</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>  uint8_t temp[20];</div>
|
|
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="classSHA1.html#a5a6a8a6169aa48e0bccadb22a149ab7c">finalize</a>(temp, <span class="keyword">sizeof</span>(temp));</div>
|
|
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <a class="code" href="classHash.html#ab6f40c9af91dc3d738d9fcce59af63cc">formatHMACKey</a>(state.w, key, keyLen, 0x5C);</div>
|
|
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  state.length += 64 * 8;</div>
|
|
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  processChunk();</div>
|
|
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="classSHA1.html#aec77fbc5015f82bbf7055e535085656a">update</a>(temp, <span class="keyword">sizeof</span>(temp));</div>
|
|
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="classSHA1.html#a5a6a8a6169aa48e0bccadb22a149ab7c">finalize</a>(hash, hashLen);</div>
|
|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  clean(temp);</div>
|
|
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> }</div>
|
|
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="keywordtype">void</span> SHA1::processChunk()</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>  uint8_t index;</div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">// Convert the first 16 words from big endian to host byte order.</span></div>
|
|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">for</span> (index = 0; index < 16; ++index)</div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  state.w[index] = be32toh(state.w[index]);</div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="comment">// Initialize the hash value for this chunk.</span></div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  uint32_t a = state.h[0];</div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  uint32_t b = state.h[1];</div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  uint32_t c = state.h[2];</div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  uint32_t d = state.h[3];</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  uint32_t e = state.h[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">// Perform the first 16 rounds of the compression function main loop.</span></div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  uint32_t temp;</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">for</span> (index = 0; index < 16; ++index) {</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  temp = leftRotate5(a) + ((b & c) | ((~b) & d)) + e + 0x5A827999 + state.w[index];</div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  e = d;</div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  d = c;</div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  c = leftRotate30(b);</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  b = a;</div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  a = temp;</div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  }</div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// Perform the 64 remaining rounds. We expand the first 16 words to</span></div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// 80 in-place in the "w" array. This saves 256 bytes of memory</span></div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="comment">// that would have otherwise need to be allocated to the "w" array.</span></div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">for</span> (; index < 20; ++index) {</div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  temp = state.w[index & 0x0F] = leftRotate1</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  (state.w[(index - 3) & 0x0F] ^ state.w[(index - 8) & 0x0F] ^</div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  state.w[(index - 14) & 0x0F] ^ state.w[(index - 16) & 0x0F]);</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  temp = leftRotate5(a) + ((b & c) | ((~b) & d)) + e + 0x5A827999 + temp;</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  e = d;</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  d = c;</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  c = leftRotate30(b);</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  b = a;</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  a = temp;</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>  <span class="keywordflow">for</span> (; index < 40; ++index) {</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  temp = state.w[index & 0x0F] = leftRotate1</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  (state.w[(index - 3) & 0x0F] ^ state.w[(index - 8) & 0x0F] ^</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  state.w[(index - 14) & 0x0F] ^ state.w[(index - 16) & 0x0F]);</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  temp = leftRotate5(a) + (b ^ c ^ d) + e + 0x6ED9EBA1 + temp;</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  e = d;</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  d = c;</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  c = leftRotate30(b);</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  b = a;</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  a = temp;</div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">for</span> (; index < 60; ++index) {</div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  temp = state.w[index & 0x0F] = leftRotate1</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  (state.w[(index - 3) & 0x0F] ^ state.w[(index - 8) & 0x0F] ^</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  state.w[(index - 14) & 0x0F] ^ state.w[(index - 16) & 0x0F]);</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  temp = leftRotate5(a) + ((b & c) | (b & d) | (c & d)) + e + 0x8F1BBCDC + temp;</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  e = d;</div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  d = c;</div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  c = leftRotate30(b);</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  b = a;</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  a = temp;</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>  <span class="keywordflow">for</span> (; index < 80; ++index) {</div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  temp = state.w[index & 0x0F] = leftRotate1</div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  (state.w[(index - 3) & 0x0F] ^ state.w[(index - 8) & 0x0F] ^</div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  state.w[(index - 14) & 0x0F] ^ state.w[(index - 16) & 0x0F]);</div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  temp = leftRotate5(a) + (b ^ c ^ d) + e + 0xCA62C1D6 + temp;</div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  e = d;</div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  d = c;</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  c = leftRotate30(b);</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  b = a;</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  a = temp;</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> </div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="comment">// Add this chunk's hash to the result so far.</span></div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  state.h[0] += a;</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  state.h[1] += b;</div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  state.h[2] += c;</div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  state.h[3] += d;</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  state.h[4] += e;</div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="comment">// Attempt to clean up the stack.</span></div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  a = b = c = d = e = temp = 0;</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> }</div>
|
|
<div class="ttc" id="classSHA1_html_ad0a09a5100d59ff90c04ed5d4071b606"><div class="ttname"><a href="classSHA1.html#ad0a09a5100d59ff90c04ed5d4071b606">SHA1::resetHMAC</a></div><div class="ttdeci">void resetHMAC(const void *key, size_t keyLen)</div><div class="ttdoc">Resets the hash ready for a new HMAC hashing process. </div><div class="ttdef"><b>Definition:</b> <a href="SHA1_8cpp_source.html#l00134">SHA1.cpp:134</a></div></div>
|
|
<div class="ttc" id="classSHA1_html_a8485d7c14fa29286cd3c7acfe438606d"><div class="ttname"><a href="classSHA1.html#a8485d7c14fa29286cd3c7acfe438606d">SHA1::~SHA1</a></div><div class="ttdeci">virtual ~SHA1()</div><div class="ttdoc">Destroys this SHA-1 hash object after clearing sensitive information. </div><div class="ttdef"><b>Definition:</b> <a href="SHA1_8cpp_source.html#l00049">SHA1.cpp:49</a></div></div>
|
|
<div class="ttc" id="classSHA1_html_ab71aaf39ed956320054861a2fbfa454f"><div class="ttname"><a href="classSHA1.html#ab71aaf39ed956320054861a2fbfa454f">SHA1::reset</a></div><div class="ttdeci">void reset()</div><div class="ttdoc">Resets the hash ready for a new hashing process. </div><div class="ttdef"><b>Definition:</b> <a href="SHA1_8cpp_source.html#l00064">SHA1.cpp:64</a></div></div>
|
|
<div class="ttc" id="classSHA1_html_aec77fbc5015f82bbf7055e535085656a"><div class="ttname"><a href="classSHA1.html#aec77fbc5015f82bbf7055e535085656a">SHA1::update</a></div><div class="ttdeci">void update(const void *data, size_t len)</div><div class="ttdoc">Updates the hash with more data. </div><div class="ttdef"><b>Definition:</b> <a href="SHA1_8cpp_source.html#l00075">SHA1.cpp:75</a></div></div>
|
|
<div class="ttc" id="classSHA1_html_a41a159d6565b04d3f620dcd720faaf3f"><div class="ttname"><a href="classSHA1.html#a41a159d6565b04d3f620dcd720faaf3f">SHA1::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears the hash state, removing all sensitive data, and then resets the hash ready for a new hashing ...</div><div class="ttdef"><b>Definition:</b> <a href="SHA1_8cpp_source.html#l00128">SHA1.cpp:128</a></div></div>
|
|
<div class="ttc" id="classSHA1_html_a816e3fd1a02cf1ecc67866cd8c7c309a"><div class="ttname"><a href="classSHA1.html#a816e3fd1a02cf1ecc67866cd8c7c309a">SHA1::blockSize</a></div><div class="ttdeci">size_t blockSize() const </div><div class="ttdoc">Size of the internal block used by the hash algorithm. </div><div class="ttdef"><b>Definition:</b> <a href="SHA1_8cpp_source.html#l00059">SHA1.cpp:59</a></div></div>
|
|
<div class="ttc" id="classSHA1_html_a5a6a8a6169aa48e0bccadb22a149ab7c"><div class="ttname"><a href="classSHA1.html#a5a6a8a6169aa48e0bccadb22a149ab7c">SHA1::finalize</a></div><div class="ttdeci">void finalize(void *hash, size_t len)</div><div class="ttdoc">Finalizes the hashing process and returns the hash. </div><div class="ttdef"><b>Definition:</b> <a href="SHA1_8cpp_source.html#l00097">SHA1.cpp:97</a></div></div>
|
|
<div class="ttc" id="classSHA1_html_a791db53fe9d6cc0e383b25f1da0a97b8"><div class="ttname"><a href="classSHA1.html#a791db53fe9d6cc0e383b25f1da0a97b8">SHA1::finalizeHMAC</a></div><div class="ttdeci">void finalizeHMAC(const void *key, size_t keyLen, void *hash, size_t hashLen)</div><div class="ttdoc">Finalizes the HMAC hashing process and returns the hash. </div><div class="ttdef"><b>Definition:</b> <a href="SHA1_8cpp_source.html#l00141">SHA1.cpp:141</a></div></div>
|
|
<div class="ttc" id="classSHA1_html_ab8cdb7233a8b81be07877049960ddfdd"><div class="ttname"><a href="classSHA1.html#ab8cdb7233a8b81be07877049960ddfdd">SHA1::hashSize</a></div><div class="ttdeci">size_t hashSize() const </div><div class="ttdoc">Size of the hash result from finalize(). </div><div class="ttdef"><b>Definition:</b> <a href="SHA1_8cpp_source.html#l00054">SHA1.cpp:54</a></div></div>
|
|
<div class="ttc" id="classSHA1_html_ad49a5108ffd6996b1133bf41224ff726"><div class="ttname"><a href="classSHA1.html#ad49a5108ffd6996b1133bf41224ff726">SHA1::SHA1</a></div><div class="ttdeci">SHA1()</div><div class="ttdoc">Constructs a SHA-1 hash object. </div><div class="ttdef"><b>Definition:</b> <a href="SHA1_8cpp_source.html#l00041">SHA1.cpp:41</a></div></div>
|
|
<div class="ttc" id="classHash_html_ab6f40c9af91dc3d738d9fcce59af63cc"><div class="ttname"><a href="classHash.html#ab6f40c9af91dc3d738d9fcce59af63cc">Hash::formatHMACKey</a></div><div class="ttdeci">void formatHMACKey(void *block, const void *key, size_t len, uint8_t pad)</div><div class="ttdoc">Formats a HMAC key into a block. </div><div class="ttdef"><b>Definition:</b> <a href="Hash_8cpp_source.html#l00162">Hash.cpp:162</a></div></div>
|
|
</div><!-- fragment --></div><!-- contents -->
|
|
<!-- start footer part -->
|
|
<hr class="footer"/><address class="footer"><small>
|
|
Generated on Fri Apr 27 2018 12:01:32 for Arduino Cryptography Library by  <a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/>
|
|
</a> 1.8.6
|
|
</small></address>
|
|
</body>
|
|
</html>
|