mirror of
https://github.com/taigrr/arduinolibs
synced 2025-01-18 04:33:12 -08:00
698 lines
90 KiB
HTML
698 lines
90 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: Acorn128.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_58d2f659e0f0f847cf173d02114010b9.html">CryptoLW</a></li><li class="navelem"><a class="el" href="dir_5317e98f2689b9014cdaec1c78a27590.html">src</a></li> </ul>
|
|
</div>
|
|
</div><!-- top -->
|
|
<div class="header">
|
|
<div class="headertitle">
|
|
<div class="title">Acorn128.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) 2018 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 "Acorn128.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/EndianUtil.h"</span></div>
|
|
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <string.h></span></div>
|
|
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
|
|
<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classAcorn128.html#af42823fb01dcbdeb8a93fa4103edebf2"> 46</a></span> <a class="code" href="classAcorn128.html#af42823fb01dcbdeb8a93fa4103edebf2">Acorn128::Acorn128</a>()</div>
|
|
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> {</div>
|
|
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  state.authDone = 0;</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="l00054"></a><span class="lineno"><a class="line" href="classAcorn128.html#a170c189599a1cf332db5496dd6bc1df4"> 54</a></span> <a class="code" href="classAcorn128.html#a170c189599a1cf332db5496dd6bc1df4">Acorn128::~Acorn128</a>()</div>
|
|
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> {</div>
|
|
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  clean(state);</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="l00064"></a><span class="lineno"><a class="line" href="classAcorn128.html#af13cffd088e6ec25f9f781bea22fba12"> 64</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classAcorn128.html#af13cffd088e6ec25f9f781bea22fba12">Acorn128::keySize</a>()<span class="keyword"> const</span></div>
|
|
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keyword"></span>{</div>
|
|
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">return</span> 16;</div>
|
|
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> }</div>
|
|
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
|
|
<div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="classAcorn128.html#a4141564021e8233727beb5b9f645dc4e"> 77</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classAcorn128.html#a4141564021e8233727beb5b9f645dc4e">Acorn128::ivSize</a>()<span class="keyword"> const</span></div>
|
|
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="keyword"></span>{</div>
|
|
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span> 16;</div>
|
|
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> }</div>
|
|
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
|
|
<div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="classAcorn128.html#a75c8953cea6b9cd59aa5034dfe739889"> 87</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classAcorn128.html#a75c8953cea6b9cd59aa5034dfe739889">Acorn128::tagSize</a>()<span class="keyword"> const</span></div>
|
|
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="keyword"></span>{</div>
|
|
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">return</span> 16;</div>
|
|
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }</div>
|
|
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
|
|
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment">// Acorn128 constants for ca and cb.</span></div>
|
|
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor">#define CA_0 ((uint32_t)0x00000000)</span></div>
|
|
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor"></span><span class="preprocessor">#define CA_1 ((uint32_t)0xFFFFFFFF)</span></div>
|
|
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor"></span><span class="preprocessor">#define CB_0 ((uint32_t)0x00000000)</span></div>
|
|
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor"></span><span class="preprocessor">#define CB_1 ((uint32_t)0xFFFFFFFF)</span></div>
|
|
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor"></span><span class="preprocessor">#define CA_0_BYTE ((uint8_t)0x00)</span></div>
|
|
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor"></span><span class="preprocessor">#define CA_1_BYTE ((uint8_t)0xFF)</span></div>
|
|
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor"></span><span class="preprocessor">#define CB_0_BYTE ((uint8_t)0x00)</span></div>
|
|
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor"></span><span class="preprocessor">#define CB_1_BYTE ((uint8_t)0xFF)</span></div>
|
|
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="preprocessor">#if defined(CRYPTO_ACORN128_DEFAULT) || defined(CRYPTO_DOC)</span></div>
|
|
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment">// maj() and ch() functions for mixing the state.</span></div>
|
|
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="preprocessor">#define maj(x, y, z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))</span></div>
|
|
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor"></span><span class="preprocessor">#define ch(x, y, z) (((x) & (y)) ^ ((~(x)) & (z)))</span></div>
|
|
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="keyword">static</span> uint8_t acornEncrypt8</div>
|
|
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  (Acorn128State *state, uint8_t plaintext, uint8_t ca, uint8_t cb)</div>
|
|
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> {</div>
|
|
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">// Extract out various sub-parts of the state as 8-bit bytes.</span></div>
|
|
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="preprocessor"> #define s_extract_8(name, shift) \</span></div>
|
|
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor"> ((uint8_t)(state->name##_l >> (shift)))</span></div>
|
|
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="preprocessor"></span> uint8_t s244 = s_extract_8(s6, 14);</div>
|
|
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  uint8_t s235 = s_extract_8(s6, 5);</div>
|
|
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  uint8_t s196 = s_extract_8(s5, 3);</div>
|
|
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  uint8_t s160 = s_extract_8(s4, 6);</div>
|
|
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  uint8_t s111 = s_extract_8(s3, 4);</div>
|
|
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  uint8_t s66 = s_extract_8(s2, 5);</div>
|
|
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  uint8_t s23 = s_extract_8(s1, 23);</div>
|
|
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  uint8_t s12 = s_extract_8(s1, 12);</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">// Update the LFSR's.</span></div>
|
|
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  uint8_t s7_l = state->s7 ^ s235 ^ state->s6_l;</div>
|
|
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  state->s6_l ^= s196 ^ ((uint8_t)(state->s5_l));</div>
|
|
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  state->s5_l ^= s160 ^ ((uint8_t)(state->s4_l));</div>
|
|
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  state->s4_l ^= s111 ^ ((uint8_t)(state->s3_l));</div>
|
|
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  state->s3_l ^= s66 ^ ((uint8_t)(state->s2_l));</div>
|
|
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  state->s2_l ^= s23 ^ ((uint8_t)(state->s1_l));</div>
|
|
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
|
|
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// Generate the next 8 keystream bits.</span></div>
|
|
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="comment">// k = S[12] ^ S[154] ^ maj(S[235], S[61], S[193])</span></div>
|
|
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// ^ ch(S[230], S[111], S[66])</span></div>
|
|
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  uint8_t ks = s12 ^ state->s4_l ^</div>
|
|
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  maj(s235, state->s2_l, state->s5_l) ^</div>
|
|
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  ch(state->s6_l, s111, s66);</div>
|
|
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div>
|
|
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="comment">// Generate the next 8 non-linear feedback bits.</span></div>
|
|
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// f = S[0] ^ ~S[107] ^ maj(S[244], S[23], S[160])</span></div>
|
|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// ^ (ca & S[196]) ^ (cb & ks)</span></div>
|
|
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="comment">// f ^= plaintext</span></div>
|
|
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  uint8_t f = state->s1_l ^ (~state->s3_l) ^</div>
|
|
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  maj(s244, s23, s160) ^ (ca & s196) ^ (cb & ks);</div>
|
|
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  f ^= plaintext;</div>
|
|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">// Shift the state downwards by 8 bits.</span></div>
|
|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="preprocessor"> #define s_shift_8(name1, name2, shift) \</span></div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="preprocessor"> (state->name1##_l = (state->name1##_l >> 8) | \</span></div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="preprocessor"> (((uint32_t)(state->name1##_h)) << 24), \</span></div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="preprocessor"> state->name1##_h = (state->name1##_h >> 8) | \</span></div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="preprocessor"> ((state->name2##_l & 0xFF) << ((shift) - 40)))</span></div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="preprocessor"></span><span class="preprocessor"> #define s_shift_8_mixed(name1, name2, shift) \</span></div>
|
|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="preprocessor"> (state->name1##_l = (state->name1##_l >> 8) | \</span></div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="preprocessor"> (((uint32_t)(state->name1##_h)) << 24) | \</span></div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="preprocessor"> (state->name2##_l << ((shift) - 8)), \</span></div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="preprocessor"> state->name1##_h = ((state->name2##_l & 0xFF) >> (40 - (shift))))</span></div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="preprocessor"></span> s7_l ^= (f << 4);</div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  state->s7 = f >> 4;</div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  s_shift_8(s1, s2, 61);</div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  s_shift_8(s2, s3, 46);</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  s_shift_8(s3, s4, 47);</div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  s_shift_8_mixed(s4, s5, 39);</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  s_shift_8_mixed(s5, s6, 37);</div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  state->s6_l = (state->s6_l >> 8) | (state->s6_h << 24);</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  state->s6_h = (state->s6_h >> 8) | (((uint32_t)s7_l) << 19);</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="comment">// Return the ciphertext byte to the caller.</span></div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">return</span> plaintext ^ ks;</div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> }</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="keyword">static</span> uint32_t acornEncrypt32</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  (Acorn128State *state, uint32_t plaintext, uint32_t ca, uint32_t cb)</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> {</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="comment">// Extract out various sub-parts of the state as 32-bit words.</span></div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="preprocessor"> #define s_extract_32(name, shift) \</span></div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="preprocessor"> ((state->name##_l >> (shift)) | \</span></div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="preprocessor"> (((uint32_t)(state->name##_h)) << (32 - (shift))))</span></div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="preprocessor"></span> uint32_t s244 = s_extract_32(s6, 14);</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  uint32_t s235 = s_extract_32(s6, 5);</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  uint32_t s196 = s_extract_32(s5, 3);</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  uint32_t s160 = s_extract_32(s4, 6);</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  uint32_t s111 = s_extract_32(s3, 4);</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  uint32_t s66 = s_extract_32(s2, 5);</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  uint32_t s23 = s_extract_32(s1, 23);</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  uint32_t s12 = s_extract_32(s1, 12);</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">// Update the LFSR's.</span></div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  uint32_t s7_l = state->s7 ^ s235 ^ state->s6_l;</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  state->s6_l ^= s196 ^ state->s5_l;</div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  state->s5_l ^= s160 ^ state->s4_l;</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  state->s4_l ^= s111 ^ state->s3_l;</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  state->s3_l ^= s66 ^ state->s2_l;</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  state->s2_l ^= s23 ^ state->s1_l;</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>  <span class="comment">// Generate the next 32 keystream bits.</span></div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="comment">// k = S[12] ^ S[154] ^ maj(S[235], S[61], S[193])</span></div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="comment">// ^ ch(S[230], S[111], S[66])</span></div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  uint32_t ks = s12 ^ state->s4_l ^</div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  maj(s235, state->s2_l, state->s5_l) ^</div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  ch(state->s6_l, s111, s66);</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>  <span class="comment">// Generate the next 32 non-linear feedback bits.</span></div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="comment">// f = S[0] ^ ~S[107] ^ maj(S[244], S[23], S[160])</span></div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="comment">// ^ (ca & S[196]) ^ (cb & ks)</span></div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="comment">// f ^= plaintext</span></div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  uint32_t f = state->s1_l ^ (~state->s3_l) ^</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  maj(s244, s23, s160) ^ (ca & s196) ^ (cb & ks);</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  f ^= plaintext;</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="comment">// Shift the state downwards by 32 bits.</span></div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="preprocessor"> #define s_shift_32(name1, name2, shift) \</span></div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="preprocessor"> (state->name1##_l = state->name1##_h | (state->name2##_l << (shift)), \</span></div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="preprocessor"> state->name1##_h = (state->name2##_l >> (32 - (shift))))</span></div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="preprocessor"></span> s7_l ^= (f << 4);</div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  state->s7 = (uint8_t)(f >> 28);</div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  s_shift_32(s1, s2, 29);</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  s_shift_32(s2, s3, 14);</div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  s_shift_32(s3, s4, 15);</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  s_shift_32(s4, s5, 7);</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  s_shift_32(s5, s6, 5);</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  state->s6_l = state->s6_h | (s7_l << 27);</div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  state->s6_h = s7_l >> 5;</div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div>
|
|
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="comment">// Return the ciphertext word to the caller.</span></div>
|
|
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">return</span> plaintext ^ ks;</div>
|
|
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> }</div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> </div>
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="keyword">static</span> <span class="keyword">inline</span> uint32_t acornEncrypt32Fast</div>
|
|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  (Acorn128State *state, uint32_t plaintext)</div>
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> {</div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="comment">// Extract out various sub-parts of the state as 32-bit words.</span></div>
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="preprocessor"> #define s_extract_32(name, shift) \</span></div>
|
|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="preprocessor"> ((state->name##_l >> (shift)) | \</span></div>
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="preprocessor"> (((uint32_t)(state->name##_h)) << (32 - (shift))))</span></div>
|
|
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="preprocessor"></span> uint32_t s244 = s_extract_32(s6, 14);</div>
|
|
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  uint32_t s235 = s_extract_32(s6, 5);</div>
|
|
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  uint32_t s196 = s_extract_32(s5, 3);</div>
|
|
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  uint32_t s160 = s_extract_32(s4, 6);</div>
|
|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  uint32_t s111 = s_extract_32(s3, 4);</div>
|
|
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  uint32_t s66 = s_extract_32(s2, 5);</div>
|
|
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  uint32_t s23 = s_extract_32(s1, 23);</div>
|
|
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  uint32_t s12 = s_extract_32(s1, 12);</div>
|
|
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> </div>
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="comment">// Update the LFSR's.</span></div>
|
|
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  uint32_t s7_l = state->s7 ^ s235 ^ state->s6_l;</div>
|
|
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  state->s6_l ^= s196 ^ state->s5_l;</div>
|
|
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  state->s5_l ^= s160 ^ state->s4_l;</div>
|
|
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  state->s4_l ^= s111 ^ state->s3_l;</div>
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  state->s3_l ^= s66 ^ state->s2_l;</div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  state->s2_l ^= s23 ^ state->s1_l;</div>
|
|
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div>
|
|
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="comment">// Generate the next 32 keystream bits.</span></div>
|
|
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">// k = S[12] ^ S[154] ^ maj(S[235], S[61], S[193])</span></div>
|
|
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// ^ ch(S[230], S[111], S[66])</span></div>
|
|
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  uint32_t ks = s12 ^ state->s4_l ^</div>
|
|
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  maj(s235, state->s2_l, state->s5_l) ^</div>
|
|
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  ch(state->s6_l, s111, s66);</div>
|
|
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div>
|
|
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="comment">// Generate the next 32 non-linear feedback bits.</span></div>
|
|
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="comment">// f = S[0] ^ ~S[107] ^ maj(S[244], S[23], S[160])</span></div>
|
|
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="comment">// ^ (ca & S[196]) ^ (cb & ks)</span></div>
|
|
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// f ^= plaintext</span></div>
|
|
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="comment">// Note: ca will always be 1 and cb will always be 0.</span></div>
|
|
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  uint32_t f = state->s1_l ^ (~state->s3_l) ^ maj(s244, s23, s160) ^ s196;</div>
|
|
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  f ^= plaintext;</div>
|
|
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div>
|
|
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="comment">// Shift the state downwards by 32 bits.</span></div>
|
|
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="preprocessor"> #define s_shift_32(name1, name2, shift) \</span></div>
|
|
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="preprocessor"> (state->name1##_l = state->name1##_h | (state->name2##_l << (shift)), \</span></div>
|
|
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="preprocessor"> state->name1##_h = (state->name2##_l >> (32 - (shift))))</span></div>
|
|
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="preprocessor"></span> s7_l ^= (f << 4);</div>
|
|
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  state->s7 = (uint8_t)(f >> 28);</div>
|
|
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  s_shift_32(s1, s2, 29);</div>
|
|
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  s_shift_32(s2, s3, 14);</div>
|
|
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  s_shift_32(s3, s4, 15);</div>
|
|
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  s_shift_32(s4, s5, 7);</div>
|
|
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  s_shift_32(s5, s6, 5);</div>
|
|
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  state->s6_l = state->s6_h | (s7_l << 27);</div>
|
|
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  state->s6_h = s7_l >> 5;</div>
|
|
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> </div>
|
|
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="comment">// Return the ciphertext word to the caller.</span></div>
|
|
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">return</span> plaintext ^ ks;</div>
|
|
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> }</div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div>
|
|
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="keyword">static</span> <span class="keyword">inline</span> uint8_t acornDecrypt8(Acorn128State *state, uint8_t ciphertext)</div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> {</div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">// Extract out various sub-parts of the state as 8-bit bytes.</span></div>
|
|
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> <span class="preprocessor"> #define s_extract_8(name, shift) \</span></div>
|
|
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="preprocessor"> ((uint8_t)(state->name##_l >> (shift)))</span></div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> <span class="preprocessor"></span> uint8_t s244 = s_extract_8(s6, 14);</div>
|
|
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  uint8_t s235 = s_extract_8(s6, 5);</div>
|
|
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  uint8_t s196 = s_extract_8(s5, 3);</div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  uint8_t s160 = s_extract_8(s4, 6);</div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  uint8_t s111 = s_extract_8(s3, 4);</div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  uint8_t s66 = s_extract_8(s2, 5);</div>
|
|
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  uint8_t s23 = s_extract_8(s1, 23);</div>
|
|
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  uint8_t s12 = s_extract_8(s1, 12);</div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> </div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">// Update the LFSR's.</span></div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  uint8_t s7_l = state->s7 ^ s235 ^ state->s6_l;</div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  state->s6_l ^= s196 ^ ((uint8_t)(state->s5_l));</div>
|
|
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  state->s5_l ^= s160 ^ ((uint8_t)(state->s4_l));</div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  state->s4_l ^= s111 ^ ((uint8_t)(state->s3_l));</div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  state->s3_l ^= s66 ^ ((uint8_t)(state->s2_l));</div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  state->s2_l ^= s23 ^ ((uint8_t)(state->s1_l));</div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> </div>
|
|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="comment">// Generate the next 8 keystream bits and decrypt the ciphertext.</span></div>
|
|
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="comment">// k = S[12] ^ S[154] ^ maj(S[235], S[61], S[193])</span></div>
|
|
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="comment">// ^ ch(S[230], S[111], S[66])</span></div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  uint8_t ks = s12 ^ state->s4_l ^</div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  maj(s235, state->s2_l, state->s5_l) ^</div>
|
|
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  ch(state->s6_l, s111, s66);</div>
|
|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  uint8_t plaintext = ciphertext ^ ks;</div>
|
|
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div>
|
|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="comment">// Generate the next 8 non-linear feedback bits.</span></div>
|
|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="comment">// f = S[0] ^ ~S[107] ^ maj(S[244], S[23], S[160])</span></div>
|
|
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="comment">// ^ (ca & S[196]) ^ (cb & ks)</span></div>
|
|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">// f ^= plaintext</span></div>
|
|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="comment">// Note: ca will always be 1 and cb will always be 0.</span></div>
|
|
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  uint8_t f = state->s1_l ^ (~state->s3_l) ^ maj(s244, s23, s160) ^ s196;</div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  f ^= plaintext;</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>  <span class="comment">// Shift the state downwards by 8 bits.</span></div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="preprocessor"> #define s_shift_8(name1, name2, shift) \</span></div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="preprocessor"> (state->name1##_l = (state->name1##_l >> 8) | \</span></div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="preprocessor"> (((uint32_t)(state->name1##_h)) << 24), \</span></div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="preprocessor"> state->name1##_h = (state->name1##_h >> 8) | \</span></div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="preprocessor"> ((state->name2##_l & 0xFF) << ((shift) - 40)))</span></div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="preprocessor"></span><span class="preprocessor"> #define s_shift_8_mixed(name1, name2, shift) \</span></div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="preprocessor"> (state->name1##_l = (state->name1##_l >> 8) | \</span></div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="preprocessor"> (((uint32_t)(state->name1##_h)) << 24) | \</span></div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="preprocessor"> (state->name2##_l << ((shift) - 8)), \</span></div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="preprocessor"> state->name1##_h = ((state->name2##_l & 0xFF) >> (40 - (shift))))</span></div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="preprocessor"></span> s7_l ^= (f << 4);</div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  state->s7 = f >> 4;</div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  s_shift_8(s1, s2, 61);</div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  s_shift_8(s2, s3, 46);</div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  s_shift_8(s3, s4, 47);</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  s_shift_8_mixed(s4, s5, 39);</div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  s_shift_8_mixed(s5, s6, 37);</div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  state->s6_l = (state->s6_l >> 8) | (state->s6_h << 24);</div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  state->s6_h = (state->s6_h >> 8) | (((uint32_t)s7_l) << 19);</div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> </div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="comment">// Return the plaintext byte to the caller.</span></div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">return</span> plaintext;</div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> }</div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> </div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="keyword">static</span> <span class="keyword">inline</span> uint32_t acornDecrypt32(Acorn128State *state, uint32_t ciphertext)</div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> {</div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="comment">// Extract out various sub-parts of the state as 32-bit words.</span></div>
|
|
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="preprocessor"> #define s_extract_32(name, shift) \</span></div>
|
|
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> <span class="preprocessor"> ((state->name##_l >> (shift)) | \</span></div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span> <span class="preprocessor"> (((uint32_t)(state->name##_h)) << (32 - (shift))))</span></div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="preprocessor"></span> uint32_t s244 = s_extract_32(s6, 14);</div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  uint32_t s235 = s_extract_32(s6, 5);</div>
|
|
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  uint32_t s196 = s_extract_32(s5, 3);</div>
|
|
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  uint32_t s160 = s_extract_32(s4, 6);</div>
|
|
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  uint32_t s111 = s_extract_32(s3, 4);</div>
|
|
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  uint32_t s66 = s_extract_32(s2, 5);</div>
|
|
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  uint32_t s23 = s_extract_32(s1, 23);</div>
|
|
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  uint32_t s12 = s_extract_32(s1, 12);</div>
|
|
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span> </div>
|
|
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="comment">// Update the LFSR's.</span></div>
|
|
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  uint32_t s7_l = state->s7 ^ s235 ^ state->s6_l;</div>
|
|
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  state->s6_l ^= s196 ^ state->s5_l;</div>
|
|
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  state->s5_l ^= s160 ^ state->s4_l;</div>
|
|
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  state->s4_l ^= s111 ^ state->s3_l;</div>
|
|
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  state->s3_l ^= s66 ^ state->s2_l;</div>
|
|
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  state->s2_l ^= s23 ^ state->s1_l;</div>
|
|
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> </div>
|
|
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="comment">// Generate the next 32 keystream bits and decrypt the ciphertext.</span></div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="comment">// k = S[12] ^ S[154] ^ maj(S[235], S[61], S[193])</span></div>
|
|
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="comment">// ^ ch(S[230], S[111], S[66])</span></div>
|
|
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  uint32_t ks = s12 ^ state->s4_l ^</div>
|
|
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  maj(s235, state->s2_l, state->s5_l) ^</div>
|
|
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  ch(state->s6_l, s111, s66);</div>
|
|
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  uint32_t plaintext = ciphertext ^ ks;</div>
|
|
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div>
|
|
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="comment">// Generate the next 32 non-linear feedback bits.</span></div>
|
|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="comment">// f = S[0] ^ ~S[107] ^ maj(S[244], S[23], S[160])</span></div>
|
|
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="comment">// ^ (ca & S[196]) ^ (cb & ks)</span></div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="comment">// f ^= plaintext</span></div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="comment">// Note: ca will always be 1 and cb will always be 0.</span></div>
|
|
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  uint32_t f = state->s1_l ^ (~state->s3_l) ^ maj(s244, s23, s160) ^ s196;</div>
|
|
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  f ^= plaintext;</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>  <span class="comment">// Shift the state downwards by 32 bits.</span></div>
|
|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span> <span class="preprocessor"> #define s_shift_32(name1, name2, shift) \</span></div>
|
|
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> <span class="preprocessor"> (state->name1##_l = state->name1##_h | (state->name2##_l << (shift)), \</span></div>
|
|
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> <span class="preprocessor"> state->name1##_h = (state->name2##_l >> (32 - (shift))))</span></div>
|
|
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span> <span class="preprocessor"></span> s7_l ^= (f << 4);</div>
|
|
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  state->s7 = (uint8_t)(f >> 28);</div>
|
|
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  s_shift_32(s1, s2, 29);</div>
|
|
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  s_shift_32(s2, s3, 14);</div>
|
|
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  s_shift_32(s3, s4, 15);</div>
|
|
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  s_shift_32(s4, s5, 7);</div>
|
|
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  s_shift_32(s5, s6, 5);</div>
|
|
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  state->s6_l = state->s6_h | (s7_l << 27);</div>
|
|
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  state->s6_h = s7_l >> 5;</div>
|
|
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span> </div>
|
|
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="comment">// Return the plaintext word to the caller.</span></div>
|
|
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keywordflow">return</span> plaintext;</div>
|
|
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span> }</div>
|
|
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> </div>
|
|
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="preprocessor">#elif defined(CRYPTO_ACORN128_AVR)</span></div>
|
|
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="comment">// Import definitions from Acorn128AVR.cpp</span></div>
|
|
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="keyword">extern</span> uint32_t acornEncrypt32</div>
|
|
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  (Acorn128State *state, uint32_t plaintext, uint32_t ca, uint32_t cb);</div>
|
|
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> </div>
|
|
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span> <span class="preprocessor">#endif // CRYPTO_ACORN128_AVR</span></div>
|
|
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="keywordtype">void</span> acornPad(Acorn128State *state, uint32_t cb)</div>
|
|
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span> {</div>
|
|
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  acornEncrypt32(state, 1, CA_1, cb);</div>
|
|
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  acornEncrypt32(state, 0, CA_1, cb);</div>
|
|
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  acornEncrypt32(state, 0, CA_1, cb);</div>
|
|
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  acornEncrypt32(state, 0, CA_1, cb);</div>
|
|
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  acornEncrypt32(state, 0, CA_0, cb);</div>
|
|
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  acornEncrypt32(state, 0, CA_0, cb);</div>
|
|
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  acornEncrypt32(state, 0, CA_0, cb);</div>
|
|
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  acornEncrypt32(state, 0, CA_0, cb);</div>
|
|
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span> }</div>
|
|
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span> </div>
|
|
<div class="line"><a name="l00477"></a><span class="lineno"><a class="line" href="classAcorn128.html#a2a2b2285ffc4d0ed57d661d739d22302"> 477</a></span> <span class="keywordtype">bool</span> <a class="code" href="classAcorn128.html#a2a2b2285ffc4d0ed57d661d739d22302">Acorn128::setKey</a>(<span class="keyword">const</span> uint8_t *key, <span class="keywordtype">size_t</span> len)</div>
|
|
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> {</div>
|
|
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="comment">// We cannot initialize the key block until we also have the IV.</span></div>
|
|
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="comment">// So we simply validate the length and save the key away for later.</span></div>
|
|
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keywordflow">if</span> (len == 16) {</div>
|
|
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  memcpy(state.k, key, 16);</div>
|
|
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> <span class="preprocessor">#if !defined(CRYPTO_LITTLE_ENDIAN)</span></div>
|
|
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> <span class="preprocessor"></span> state.k[0] = le32toh(state.k[0]);</div>
|
|
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  state.k[1] = le32toh(state.k[1]);</div>
|
|
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  state.k[2] = le32toh(state.k[2]);</div>
|
|
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  state.k[3] = le32toh(state.k[3]);</div>
|
|
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  }</div>
|
|
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span> }</div>
|
|
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span> </div>
|
|
<div class="line"><a name="l00495"></a><span class="lineno"><a class="line" href="classAcorn128.html#ae4e9ecf2030c4d2e3f32a19f937de845"> 495</a></span> <span class="keywordtype">bool</span> <a class="code" href="classAcorn128.html#ae4e9ecf2030c4d2e3f32a19f937de845">Acorn128::setIV</a>(<span class="keyword">const</span> uint8_t *iv, <span class="keywordtype">size_t</span> len)</div>
|
|
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> {</div>
|
|
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keywordflow">if</span> (len != 16)</div>
|
|
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span> </div>
|
|
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="comment">// Unpack the iv into four 32-bit words.</span></div>
|
|
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  uint32_t ivwords[4];</div>
|
|
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  memcpy(ivwords, iv, 16);</div>
|
|
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="preprocessor">#if !defined(CRYPTO_LITTLE_ENDIAN)</span></div>
|
|
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="preprocessor"></span> ivwords[0] = le32toh(ivwords[0]);</div>
|
|
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  ivwords[1] = le32toh(ivwords[1]);</div>
|
|
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  ivwords[2] = le32toh(ivwords[2]);</div>
|
|
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  ivwords[3] = le32toh(ivwords[3]);</div>
|
|
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="comment">// Initialize the state to zero.</span></div>
|
|
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  state.s1_l = 0;</div>
|
|
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  state.s1_h = 0;</div>
|
|
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  state.s2_l = 0;</div>
|
|
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  state.s2_h = 0;</div>
|
|
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  state.s3_h = 0;</div>
|
|
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  state.s3_l = 0;</div>
|
|
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  state.s4_l = 0;</div>
|
|
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  state.s4_h = 0;</div>
|
|
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  state.s5_h = 0;</div>
|
|
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  state.s5_l = 0;</div>
|
|
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  state.s6_l = 0;</div>
|
|
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  state.s6_h = 0;</div>
|
|
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  state.s7 = 0;</div>
|
|
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  state.authDone = 0;</div>
|
|
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span> </div>
|
|
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="comment">// Run the cipher for 1792 steps, 32 at a time,</span></div>
|
|
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="comment">// which mixes the key and IV into the cipher state.</span></div>
|
|
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  acornEncrypt32(&state, state.k[0], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  acornEncrypt32(&state, state.k[1], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  acornEncrypt32(&state, state.k[2], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  acornEncrypt32(&state, state.k[3], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  acornEncrypt32(&state, ivwords[0], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  acornEncrypt32(&state, ivwords[1], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  acornEncrypt32(&state, ivwords[2], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  acornEncrypt32(&state, ivwords[3], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  acornEncrypt32(&state, state.k[0] ^ 0x00000001, CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  acornEncrypt32(&state, state.k[1], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  acornEncrypt32(&state, state.k[2], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  acornEncrypt32(&state, state.k[3], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <span class="keywordflow">for</span> (uint8_t i = 0; i < 11; ++i) {</div>
|
|
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  acornEncrypt32(&state, state.k[0], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  acornEncrypt32(&state, state.k[1], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  acornEncrypt32(&state, state.k[2], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  acornEncrypt32(&state, state.k[3], CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  }</div>
|
|
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span> </div>
|
|
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="comment">// Clean up and exit.</span></div>
|
|
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  clean(ivwords);</div>
|
|
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span> }</div>
|
|
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span> </div>
|
|
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="preprocessor">#if defined(CRYPTO_ACORN128_DEFAULT) || defined(CRYPTO_DOC)</span></div>
|
|
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00554"></a><span class="lineno"><a class="line" href="classAcorn128.html#a4273a0b1eb880d98e34f2f9123fa167b"> 554</a></span> <span class="keywordtype">void</span> <a class="code" href="classAcorn128.html#a4273a0b1eb880d98e34f2f9123fa167b">Acorn128::encrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len)</div>
|
|
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span> {</div>
|
|
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="keywordflow">if</span> (!state.authDone) {</div>
|
|
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  acornPad(&state, CB_1);</div>
|
|
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  state.authDone = 1;</div>
|
|
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  }</div>
|
|
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <span class="keywordflow">while</span> (len >= 4) {</div>
|
|
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  uint32_t temp = ((uint32_t)input[0]) |</div>
|
|
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  (((uint32_t)input[1]) << 8) |</div>
|
|
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  (((uint32_t)input[2]) << 16) |</div>
|
|
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  (((uint32_t)input[3]) << 24);</div>
|
|
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  temp = acornEncrypt32Fast(&state, temp);</div>
|
|
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  output[0] = (uint8_t)temp;</div>
|
|
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  output[1] = (uint8_t)(temp >> 8);</div>
|
|
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  output[2] = (uint8_t)(temp >> 16);</div>
|
|
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  output[3] = (uint8_t)(temp >> 24);</div>
|
|
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  input += 4;</div>
|
|
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  output += 4;</div>
|
|
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  len -= 4;</div>
|
|
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  }</div>
|
|
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <span class="keywordflow">while</span> (len > 0) {</div>
|
|
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  *output++ = acornEncrypt8(&state, *input++, CA_1_BYTE, CB_0_BYTE);</div>
|
|
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  --len;</div>
|
|
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  }</div>
|
|
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span> }</div>
|
|
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span> </div>
|
|
<div class="line"><a name="l00580"></a><span class="lineno"><a class="line" href="classAcorn128.html#a7eacfc496f19b691207f64ba58b4c14a"> 580</a></span> <span class="keywordtype">void</span> <a class="code" href="classAcorn128.html#a7eacfc496f19b691207f64ba58b4c14a">Acorn128::decrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len)</div>
|
|
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span> {</div>
|
|
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <span class="keywordflow">if</span> (!state.authDone) {</div>
|
|
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  acornPad(&state, CB_1);</div>
|
|
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  state.authDone = 1;</div>
|
|
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  }</div>
|
|
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="keywordflow">while</span> (len >= 4) {</div>
|
|
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  uint32_t temp = ((uint32_t)input[0]) |</div>
|
|
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  (((uint32_t)input[1]) << 8) |</div>
|
|
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  (((uint32_t)input[2]) << 16) |</div>
|
|
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  (((uint32_t)input[3]) << 24);</div>
|
|
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  temp = acornDecrypt32(&state, temp);</div>
|
|
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  output[0] = (uint8_t)temp;</div>
|
|
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  output[1] = (uint8_t)(temp >> 8);</div>
|
|
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  output[2] = (uint8_t)(temp >> 16);</div>
|
|
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  output[3] = (uint8_t)(temp >> 24);</div>
|
|
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  input += 4;</div>
|
|
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  output += 4;</div>
|
|
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  len -= 4;</div>
|
|
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  }</div>
|
|
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <span class="keywordflow">while</span> (len > 0) {</div>
|
|
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  *output++ = acornDecrypt8(&state, *input++);</div>
|
|
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  --len;</div>
|
|
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  }</div>
|
|
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span> }</div>
|
|
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span> </div>
|
|
<div class="line"><a name="l00606"></a><span class="lineno"><a class="line" href="classAcorn128.html#a9a893539010c729c7d93a7acfd76ae67"> 606</a></span> <span class="keywordtype">void</span> <a class="code" href="classAcorn128.html#a9a893539010c729c7d93a7acfd76ae67">Acorn128::addAuthData</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="l00607"></a><span class="lineno"> 607</span> {</div>
|
|
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <span class="comment">// Cannot add any more auth data if we've started to encrypt or decrypt.</span></div>
|
|
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  <span class="keywordflow">if</span> (state.authDone)</div>
|
|
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span> </div>
|
|
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  <span class="comment">// Encrypt the auth data with ca = 1, cb = 1.</span></div>
|
|
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="keyword">const</span> uint8_t *input = (<span class="keyword">const</span> uint8_t *)data;</div>
|
|
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  <span class="keywordflow">while</span> (len >= 4) {</div>
|
|
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  uint32_t temp = ((uint32_t)input[0]) |</div>
|
|
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  (((uint32_t)input[1]) << 8) |</div>
|
|
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  (((uint32_t)input[2]) << 16) |</div>
|
|
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  (((uint32_t)input[3]) << 24);</div>
|
|
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  acornEncrypt32(&state, temp, CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  input += 4;</div>
|
|
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  len -= 4;</div>
|
|
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  }</div>
|
|
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  <span class="keywordflow">while</span> (len > 0) {</div>
|
|
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  acornEncrypt8(&state, *input++, CA_1_BYTE, CB_1_BYTE);</div>
|
|
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  --len;</div>
|
|
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  }</div>
|
|
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span> }</div>
|
|
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span> </div>
|
|
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span> <span class="preprocessor">#endif // CRYPTO_ACORN128_DEFAULT</span></div>
|
|
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00631"></a><span class="lineno"><a class="line" href="classAcorn128.html#a333c98509f0ba55dff684d54781c0242"> 631</a></span> <span class="keywordtype">void</span> <a class="code" href="classAcorn128.html#a333c98509f0ba55dff684d54781c0242">Acorn128::computeTag</a>(<span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len)</div>
|
|
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span> {</div>
|
|
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="comment">// Finalize the data and apply padding.</span></div>
|
|
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  <span class="keywordflow">if</span> (!state.authDone)</div>
|
|
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  acornPad(&state, CB_1);</div>
|
|
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  acornPad(&state, CB_0);</div>
|
|
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span> </div>
|
|
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <span class="comment">// Encrypt 768 zero bits and extract the last 128 for the tag.</span></div>
|
|
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  uint32_t temp[4];</div>
|
|
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="keywordflow">for</span> (uint8_t i = 0; i < 20; ++i)</div>
|
|
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  acornEncrypt32(&state, 0, CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  temp[0] = acornEncrypt32(&state, 0, CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  temp[1] = acornEncrypt32(&state, 0, CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  temp[2] = acornEncrypt32(&state, 0, CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  temp[3] = acornEncrypt32(&state, 0, CA_1, CB_1);</div>
|
|
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span> <span class="preprocessor">#if !defined(CRYPTO_LITTLE_ENDIAN)</span></div>
|
|
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span> <span class="preprocessor"></span> temp[0] = htole32(temp[0]);</div>
|
|
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  temp[1] = htole32(temp[1]);</div>
|
|
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  temp[2] = htole32(temp[2]);</div>
|
|
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  temp[3] = htole32(temp[3]);</div>
|
|
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="comment">// Truncate to the requested length and return the value.</span></div>
|
|
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="keywordflow">if</span> (len > 16)</div>
|
|
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  len = 16;</div>
|
|
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  memcpy(tag, temp, len);</div>
|
|
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  clean(temp);</div>
|
|
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span> }</div>
|
|
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span> </div>
|
|
<div class="line"><a name="l00660"></a><span class="lineno"><a class="line" href="classAcorn128.html#a0a1c914c76d15af00bbb348f160bbacb"> 660</a></span> <span class="keywordtype">bool</span> <a class="code" href="classAcorn128.html#a0a1c914c76d15af00bbb348f160bbacb">Acorn128::checkTag</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len)</div>
|
|
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span> {</div>
|
|
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <span class="comment">// Can never match if the expected tag length is too long.</span></div>
|
|
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="keywordflow">if</span> (len > 16)</div>
|
|
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span> </div>
|
|
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <span class="comment">// Compute the authentication tag and check it.</span></div>
|
|
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  uint8_t temp[16];</div>
|
|
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  <a class="code" href="classAcorn128.html#a333c98509f0ba55dff684d54781c0242">computeTag</a>(temp, len);</div>
|
|
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  <span class="keywordtype">bool</span> equal = secure_compare(temp, tag, len);</div>
|
|
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  clean(temp);</div>
|
|
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="keywordflow">return</span> equal;</div>
|
|
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span> }</div>
|
|
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span> </div>
|
|
<div class="line"><a name="l00677"></a><span class="lineno"><a class="line" href="classAcorn128.html#ac98fa6f3ad9f12b090d678d94ffff56f"> 677</a></span> <span class="keywordtype">void</span> <a class="code" href="classAcorn128.html#ac98fa6f3ad9f12b090d678d94ffff56f">Acorn128::clear</a>()</div>
|
|
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span> {</div>
|
|
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  clean(state);</div>
|
|
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span> }</div>
|
|
<div class="ttc" id="classAcorn128_html_af13cffd088e6ec25f9f781bea22fba12"><div class="ttname"><a href="classAcorn128.html#af13cffd088e6ec25f9f781bea22fba12">Acorn128::keySize</a></div><div class="ttdeci">size_t keySize() const </div><div class="ttdoc">Gets the size of the Acorn128 key in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00064">Acorn128.cpp:64</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_a4273a0b1eb880d98e34f2f9123fa167b"><div class="ttname"><a href="classAcorn128.html#a4273a0b1eb880d98e34f2f9123fa167b">Acorn128::encrypt</a></div><div class="ttdeci">void encrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Encrypts an input buffer and writes the ciphertext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00554">Acorn128.cpp:554</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_ac98fa6f3ad9f12b090d678d94ffff56f"><div class="ttname"><a href="classAcorn128.html#ac98fa6f3ad9f12b090d678d94ffff56f">Acorn128::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this cipher object. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00677">Acorn128.cpp:677</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_a333c98509f0ba55dff684d54781c0242"><div class="ttname"><a href="classAcorn128.html#a333c98509f0ba55dff684d54781c0242">Acorn128::computeTag</a></div><div class="ttdeci">void computeTag(void *tag, size_t len)</div><div class="ttdoc">Finalizes the encryption process and computes the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00631">Acorn128.cpp:631</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_a7eacfc496f19b691207f64ba58b4c14a"><div class="ttname"><a href="classAcorn128.html#a7eacfc496f19b691207f64ba58b4c14a">Acorn128::decrypt</a></div><div class="ttdeci">void decrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Decrypts an input buffer and writes the plaintext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00580">Acorn128.cpp:580</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_a170c189599a1cf332db5496dd6bc1df4"><div class="ttname"><a href="classAcorn128.html#a170c189599a1cf332db5496dd6bc1df4">Acorn128::~Acorn128</a></div><div class="ttdeci">virtual ~Acorn128()</div><div class="ttdoc">Destroys this Acorn128 authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00054">Acorn128.cpp:54</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_a2a2b2285ffc4d0ed57d661d739d22302"><div class="ttname"><a href="classAcorn128.html#a2a2b2285ffc4d0ed57d661d739d22302">Acorn128::setKey</a></div><div class="ttdeci">bool setKey(const uint8_t *key, size_t len)</div><div class="ttdoc">Sets the key to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00477">Acorn128.cpp:477</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_a4141564021e8233727beb5b9f645dc4e"><div class="ttname"><a href="classAcorn128.html#a4141564021e8233727beb5b9f645dc4e">Acorn128::ivSize</a></div><div class="ttdeci">size_t ivSize() const </div><div class="ttdoc">Gets the size of the Acorn128 initialization vector in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00077">Acorn128.cpp:77</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_a0a1c914c76d15af00bbb348f160bbacb"><div class="ttname"><a href="classAcorn128.html#a0a1c914c76d15af00bbb348f160bbacb">Acorn128::checkTag</a></div><div class="ttdeci">bool checkTag(const void *tag, size_t len)</div><div class="ttdoc">Finalizes the decryption process and checks the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00660">Acorn128.cpp:660</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_ae4e9ecf2030c4d2e3f32a19f937de845"><div class="ttname"><a href="classAcorn128.html#ae4e9ecf2030c4d2e3f32a19f937de845">Acorn128::setIV</a></div><div class="ttdeci">bool setIV(const uint8_t *iv, size_t len)</div><div class="ttdoc">Sets the initialization vector to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00495">Acorn128.cpp:495</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_af42823fb01dcbdeb8a93fa4103edebf2"><div class="ttname"><a href="classAcorn128.html#af42823fb01dcbdeb8a93fa4103edebf2">Acorn128::Acorn128</a></div><div class="ttdeci">Acorn128()</div><div class="ttdoc">Constructs a new Acorn128 authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00046">Acorn128.cpp:46</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_a75c8953cea6b9cd59aa5034dfe739889"><div class="ttname"><a href="classAcorn128.html#a75c8953cea6b9cd59aa5034dfe739889">Acorn128::tagSize</a></div><div class="ttdeci">size_t tagSize() const </div><div class="ttdoc">Gets the size of the Acorn128 authentication tag in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00087">Acorn128.cpp:87</a></div></div>
|
|
<div class="ttc" id="classAcorn128_html_a9a893539010c729c7d93a7acfd76ae67"><div class="ttname"><a href="classAcorn128.html#a9a893539010c729c7d93a7acfd76ae67">Acorn128::addAuthData</a></div><div class="ttdeci">void addAuthData(const void *data, size_t len)</div><div class="ttdoc">Adds extra data that will be authenticated but not encrypted. </div><div class="ttdef"><b>Definition:</b> <a href="Acorn128_8cpp_source.html#l00606">Acorn128.cpp:606</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>
|