<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.14"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Crypto++: modes.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="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">Crypto++
 <span id="projectnumber">7.0</span>
</div>
<div id="projectbrief">Free C++ class library of cryptographic schemes</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.14 -->
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(function() {
initMenu('',false,false,'search.php','Search');
});
/* @license-end */</script>
<div id="main-nav"></div>
</div><!-- top -->
<div class="header">
<div class="headertitle">
<div class="title">modes.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">// modes.cpp - originally written and placed in the public domain by Wei Dai</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor">#include "<a class="code" href="pch_8h.html">pch.h</a>"</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> </div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#ifndef CRYPTOPP_IMPORTS</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "<a class="code" href="modes_8h.html">modes.h</a>"</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "<a class="code" href="misc_8h.html">misc.h</a>"</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#if defined(CRYPTOPP_DEBUG)</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "<a class="code" href="des_8h.html">des.h</a>"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#if defined(CRYPTOPP_DEBUG) && !defined(CRYPTOPP_DOXYGEN_PROCESSING)</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keywordtype">void</span> Modes_TestInstantiations()</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> {</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <a class="code" href="class_cipher_mode_final_template___cipher_holder.html">CFB_Mode<DES>::Encryption</a> m0;</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <a class="code" href="class_cipher_mode_final_template___cipher_holder.html">CFB_Mode<DES>::Decryption</a> m1;</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <a class="code" href="class_cipher_mode_final_template___cipher_holder.html">OFB_Mode<DES>::Encryption</a> m2;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <a class="code" href="class_cipher_mode_final_template___cipher_holder.html">CTR_Mode<DES>::Encryption</a> m3;</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <a class="code" href="class_cipher_mode_final_template___cipher_holder.html">ECB_Mode<DES>::Encryption</a> m4;</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <a class="code" href="class_cipher_mode_final_template___cipher_holder.html">CBC_Mode<DES>::Encryption</a> m5;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> }</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keywordtype">void</span> CipherModeBase::ResizeBuffers()</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  m_register.<a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">New</a>(m_cipher-><a class="code" href="class_block_transformation.html#adfdb78b033996020435c3dcffdca76ce">BlockSize</a>());</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> }</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keywordtype">void</span> CFB_ModePolicy::Iterate(byte *output, <span class="keyword">const</span> byte *input, <a class="code" href="cryptlib_8h.html#a353ccabf5ddc119a6a33e92f7b9961c7">CipherDir</a> dir, <span class="keywordtype">size_t</span> iterationCount)</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(input);</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(output);</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_cipher->IsForwardTransformation()); <span class="comment">// CFB mode needs the "encrypt" direction of the underlying block cipher, even to decrypt</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_feedbackSize == <a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>());</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> s = <a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>();</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">if</span> (dir == <a class="code" href="cryptlib_8h.html#a353ccabf5ddc119a6a33e92f7b9961c7a244e5e74f856cdd5aafc1005877a2f61">ENCRYPTION</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>  m_cipher->ProcessAndXorBlock(m_register, input, output);</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">if</span> (iterationCount > 1)</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  m_cipher->AdvancedProcessBlocks(output, input+s, output+s, (iterationCount-1)*s, 0);</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  memcpy(m_register, output+(iterationCount-1)*s, s);</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>  <span class="keywordflow">else</span></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>  memcpy(m_temp, input+(iterationCount-1)*s, s); <span class="comment">// make copy first in case of in-place decryption</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">if</span> (iterationCount > 1)</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  m_cipher->AdvancedProcessBlocks(input, input+s, output+s, (iterationCount-1)*s, <a class="code" href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352da4123a7839e78785bd6495ac651c06855">BlockTransformation::BT_ReverseDirection</a>);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  m_cipher->ProcessAndXorBlock(m_register, input, output);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  memcpy(m_register, m_temp, s);</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> }</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> <span class="keywordtype">void</span> CFB_ModePolicy::TransformRegister()</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_cipher->IsForwardTransformation()); <span class="comment">// CFB mode needs the "encrypt" direction of the underlying block cipher, even to decrypt</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  m_cipher->ProcessBlock(m_register, m_temp);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> updateSize = <a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>()-m_feedbackSize;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <a class="code" href="misc_8h.html#adb296eab4ca31ab5c0cf4a932488a8de">memmove_s</a>(m_register, m_register.size(), m_register+m_feedbackSize, updateSize);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="misc_8h.html#a5f6fcbaaf6f72fe46a6d911b033dfea0">memcpy_s</a>(m_register+updateSize, m_register.size()-updateSize, m_temp, m_feedbackSize);</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> </div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="keywordtype">void</span> CFB_ModePolicy::CipherResynchronize(<span class="keyword">const</span> byte *iv, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(length == <a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>());</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  CopyOrZero(m_register, m_register.size(), iv, length);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  TransformRegister();</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="keywordtype">void</span> CFB_ModePolicy::SetFeedbackSize(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> feedbackSize)</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> {</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (feedbackSize > <a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>())</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">throw</span> <a class="code" href="class_invalid_argument.html">InvalidArgument</a>(<span class="stringliteral">"CFB_Mode: invalid feedback size"</span>);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  m_feedbackSize = feedbackSize ? feedbackSize : <a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>();</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> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="keywordtype">void</span> CFB_ModePolicy::ResizeBuffers()</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> {</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  CipherModeBase::ResizeBuffers();</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  m_temp.<a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">New</a>(<a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>());</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> }</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keywordtype">void</span> OFB_ModePolicy::WriteKeystream(byte *keystreamBuffer, <span class="keywordtype">size_t</span> iterationCount)</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> {</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_cipher->IsForwardTransformation()); <span class="comment">// OFB mode needs the "encrypt" direction of the underlying block cipher, even to decrypt</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> s = <a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>();</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  m_cipher->ProcessBlock(m_register, keystreamBuffer);</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">if</span> (iterationCount > 1)</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  m_cipher->AdvancedProcessBlocks(keystreamBuffer, NULLPTR, keystreamBuffer+s, s*(iterationCount-1), 0);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  memcpy(m_register, keystreamBuffer+s*(iterationCount-1), s);</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"> 97</span> <span class="keywordtype">void</span> OFB_ModePolicy::CipherResynchronize(byte *keystreamBuffer, <span class="keyword">const</span> byte *iv, <span class="keywordtype">size_t</span> length)</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>  CRYPTOPP_UNUSED(keystreamBuffer), CRYPTOPP_UNUSED(length);</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(length == <a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>());</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  CopyOrZero(m_register, m_register.size(), iv, length);</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> }</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keywordtype">void</span> CTR_ModePolicy::SeekToIteration(lword iterationCount)</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> {</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">int</span> carry=0;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=<a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>()-1; i>=0; i--)</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  {</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sum = m_register[i] + byte(iterationCount) + carry;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  m_counterArray[i] = (byte) sum;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  carry = sum >> 8;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  iterationCount >>= 8;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  }</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> }</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> <span class="keywordtype">void</span> CTR_ModePolicy::IncrementCounterBy256()</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> {</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <a class="code" href="misc_8h.html#a44fad9d8c25e8aca3a7ee29345516f0a">IncrementCounterByOne</a>(m_counterArray, <a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>()-1);</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> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="keywordtype">void</span> CTR_ModePolicy::OperateKeystream(<a class="code" href="strciphr_8h.html#ab4a226527d2bd01ff19bfa14d0974227">KeystreamOperation</a> <span class="comment">/*operation*/</span>, byte *output, <span class="keyword">const</span> byte *input, <span class="keywordtype">size_t</span> iterationCount)</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> {</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_cipher->IsForwardTransformation()); <span class="comment">// CTR mode needs the "encrypt" direction of the underlying block cipher, even to decrypt</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> s = <a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>();</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> inputIncrement = input ? s : 0;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">while</span> (iterationCount)</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>  byte lsb = m_counterArray[s-1];</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">size_t</span> blocks = <a class="code" href="misc_8h.html#ac8391e7d9d613a6c401787d2cdab1f51">UnsignedMin</a>(iterationCount, 256U-lsb);</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  m_cipher->AdvancedProcessBlocks(m_counterArray, input, output, blocks*s, <a class="code" href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352da29b5a55fe327fe4764833fd427298deb">BlockTransformation::BT_InBlockIsCounter</a>|<a class="code" href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352dab263d9d3939b425f3f36b10e8990a525">BlockTransformation::BT_AllowParallel</a>);</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">if</span> ((m_counterArray[s-1] = lsb + (byte)blocks) == 0)</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  IncrementCounterBy256();</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>  output += blocks*s;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  input += blocks*inputIncrement;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  iterationCount -= blocks;</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"> 141</span> </div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="keywordtype">void</span> CTR_ModePolicy::CipherResynchronize(byte *keystreamBuffer, <span class="keyword">const</span> byte *iv, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> {</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  CRYPTOPP_UNUSED(keystreamBuffer), CRYPTOPP_UNUSED(length);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(length == <a class="code" href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">BlockSize</a>());</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  CopyOrZero(m_register, m_register.size(), iv, length);</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  m_counterArray = m_register;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> }</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div><div class="line"><a name="l00151"></a><span class="lineno"><a class="line" href="class_block_oriented_cipher_mode_base.html#a1d095f1ee08abb9f03f0ed16a32c6b04"> 151</a></span> <span class="keywordtype">void</span> <a class="code" href="class_block_oriented_cipher_mode_base.html#a1d095f1ee08abb9f03f0ed16a32c6b04">BlockOrientedCipherModeBase::UncheckedSetKey</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &params)</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> {</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  m_cipher->SetKey(key, length, params);</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  ResizeBuffers();</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (<a class="code" href="class_simple_keying_interface.html#a71039112353cc70e9859ebd95037cc1a">IsResynchronizable</a>())</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  {</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordtype">size_t</span> ivLength;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keyword">const</span> byte *iv = GetIVAndThrowIfInvalid(params, ivLength);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <a class="code" href="class_block_oriented_cipher_mode_base.html#af56879c9784d5f70120f46fb60941b9f">Resynchronize</a>(iv, (<span class="keywordtype">int</span>)ivLength);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> }</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="keywordtype">void</span> BlockOrientedCipherModeBase::ResizeBuffers()</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> {</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  CipherModeBase::ResizeBuffers();</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  m_buffer.<a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">New</a>(BlockSize());</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> }</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"><a class="line" href="class_e_c_b___one_way.html#a4d8c291d821d86f7f4caa3cf95d1834c"> 169</a></span> <span class="keywordtype">void</span> <a class="code" href="class_e_c_b___one_way.html#a4d8c291d821d86f7f4caa3cf95d1834c">ECB_OneWay::ProcessData</a>(byte *outString, <span class="keyword">const</span> byte *inString, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> {</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(length%BlockSize()==0);</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  m_cipher->AdvancedProcessBlocks(inString, NULLPTR, outString, length, <a class="code" href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352dab263d9d3939b425f3f36b10e8990a525">BlockTransformation::BT_AllowParallel</a>);</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> }</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> </div><div class="line"><a name="l00175"></a><span class="lineno"><a class="line" href="class_c_b_c___encryption.html#ad4efdd9fd6d832b234771754cd51d20a"> 175</a></span> <span class="keywordtype">void</span> <a class="code" href="class_c_b_c___encryption.html#ad4efdd9fd6d832b234771754cd51d20a">CBC_Encryption::ProcessData</a>(byte *outString, <span class="keyword">const</span> byte *inString, <span class="keywordtype">size_t</span> length)</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="keywordflow">if</span> (!length) <span class="keywordflow">return</span>;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(length%BlockSize()==0);</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>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> blockSize = BlockSize();</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  m_cipher->AdvancedProcessBlocks(inString, m_register, outString, blockSize, <a class="code" href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352da692d5da11e5444e32f6e4e091623eaab">BlockTransformation::BT_XorInput</a>);</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">if</span> (length > blockSize)</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  m_cipher->AdvancedProcessBlocks(inString+blockSize, outString, outString+blockSize, length-blockSize, <a class="code" href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352da692d5da11e5444e32f6e4e091623eaab">BlockTransformation::BT_XorInput</a>);</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  memcpy(m_register, outString + length - blockSize, blockSize);</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> }</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"><a class="line" href="class_c_b_c___c_t_s___encryption.html#a8c1cd02b169591b06956b15347a588c6"> 187</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_c_b_c___c_t_s___encryption.html#a8c1cd02b169591b06956b15347a588c6">CBC_CTS_Encryption::ProcessLastBlock</a>(byte *outString, <span class="keywordtype">size_t</span> outLength, <span class="keyword">const</span> byte *inString, <span class="keywordtype">size_t</span> inLength)</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> {</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  CRYPTOPP_UNUSED(outLength);</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordtype">size_t</span> used = inLength;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">if</span> (inLength <= BlockSize())</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  {</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">if</span> (!m_stolenIV)</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">throw</span> <a class="code" href="class_invalid_argument.html">InvalidArgument</a>(<span class="stringliteral">"CBC_Encryption: message is too short for ciphertext stealing"</span>);</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">// steal from IV</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  memcpy(outString, m_register, inLength);</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  outString = m_stolenIV;</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  {</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="comment">// steal from next to last block</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a>(m_register, inString, BlockSize());</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  m_cipher->ProcessBlock(m_register);</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  inString += BlockSize();</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  inLength -= BlockSize();</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  memcpy(outString+BlockSize(), m_register, inLength);</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> </div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// output last full ciphertext block</span></div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <a class="code" href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a>(m_register, inString, inLength);</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  m_cipher->ProcessBlock(m_register);</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  memcpy(outString, m_register, BlockSize());</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="keywordflow">return</span> used;</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> }</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="keywordtype">void</span> CBC_Decryption::ResizeBuffers()</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>  BlockOrientedCipherModeBase::ResizeBuffers();</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  m_temp.<a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">New</a>(BlockSize());</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> }</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div><div class="line"><a name="l00224"></a><span class="lineno"><a class="line" href="class_c_b_c___decryption.html#ad3dfde8d73d036dc144e8750a6a3b1d1"> 224</a></span> <span class="keywordtype">void</span> <a class="code" href="class_c_b_c___decryption.html#ad3dfde8d73d036dc144e8750a6a3b1d1">CBC_Decryption::ProcessData</a>(byte *outString, <span class="keyword">const</span> byte *inString, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> {</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">if</span> (!length)</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(length%BlockSize()==0);</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="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> blockSize = BlockSize();</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  memcpy(m_temp, inString+length-blockSize, blockSize); <span class="comment">// save copy now in case of in-place decryption</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">if</span> (length > blockSize)</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  m_cipher->AdvancedProcessBlocks(inString+blockSize, inString, outString+blockSize, length-blockSize, <a class="code" href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352da4123a7839e78785bd6495ac651c06855">BlockTransformation::BT_ReverseDirection</a>|<a class="code" href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352dab263d9d3939b425f3f36b10e8990a525">BlockTransformation::BT_AllowParallel</a>);</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  m_cipher->ProcessAndXorBlock(inString, m_register, outString);</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  m_register.swap(m_temp);</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span> }</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div><div class="line"><a name="l00238"></a><span class="lineno"><a class="line" href="class_c_b_c___c_t_s___decryption.html#acde5f7846361f888d0ad275e0e78c67a"> 238</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_c_b_c___c_t_s___decryption.html#acde5f7846361f888d0ad275e0e78c67a">CBC_CTS_Decryption::ProcessLastBlock</a>(byte *outString, <span class="keywordtype">size_t</span> outLength, <span class="keyword">const</span> byte *inString, <span class="keywordtype">size_t</span> inLength)</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> {</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  CRYPTOPP_UNUSED(outLength);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keyword">const</span> byte *pn1, *pn2;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordtype">bool</span> stealIV = inLength <= BlockSize();</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordtype">size_t</span> used = inLength;</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> </div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">if</span> (stealIV)</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>  pn1 = inString;</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  pn2 = m_register;</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  }</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  {</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  pn1 = inString + BlockSize();</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  pn2 = inString;</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  inLength -= BlockSize();</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  }</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="comment">// decrypt last partial plaintext block</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  memcpy(m_temp, pn2, BlockSize());</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  m_cipher->ProcessBlock(m_temp);</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <a class="code" href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a>(m_temp, pn1, inLength);</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">if</span> (stealIV)</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  {</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  memcpy(outString, m_temp, inLength);</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  }</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  {</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  memcpy(outString+BlockSize(), m_temp, inLength);</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="comment">// decrypt next to last plaintext block</span></div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  memcpy(m_temp, pn1, inLength);</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  m_cipher->ProcessBlock(m_temp);</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <a class="code" href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a>(outString, m_temp, m_register, BlockSize());</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> </div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">return</span> used;</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> }</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> </div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> NAMESPACE_END</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> </div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="class_block_transformation_html_adec6c003f0e1539c0a9da64e2d17352dab263d9d3939b425f3f36b10e8990a525"><div class="ttname"><a href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352dab263d9d3939b425f3f36b10e8990a525">BlockTransformation::BT_AllowParallel</a></div><div class="ttdoc">Allow parallel transformations. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00878">cryptlib.h:878</a></div></div>
<div class="ttc" id="class_invalid_argument_html"><div class="ttname"><a href="class_invalid_argument.html">InvalidArgument</a></div><div class="ttdoc">An invalid argument was detected. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00199">cryptlib.h:199</a></div></div>
<div class="ttc" id="class_c_b_c___decryption_html_ad3dfde8d73d036dc144e8750a6a3b1d1"><div class="ttname"><a href="class_c_b_c___decryption.html#ad3dfde8d73d036dc144e8750a6a3b1d1">CBC_Decryption::ProcessData</a></div><div class="ttdeci">void ProcessData(byte *outString, const byte *inString, size_t length)</div><div class="ttdoc">Encrypt or decrypt an array of bytes. </div><div class="ttdef"><b>Definition:</b> <a href="modes_8cpp_source.html#l00224">modes.cpp:224</a></div></div>
<div class="ttc" id="misc_8h_html_adb296eab4ca31ab5c0cf4a932488a8de"><div class="ttname"><a href="misc_8h.html#adb296eab4ca31ab5c0cf4a932488a8de">memmove_s</a></div><div class="ttdeci">void memmove_s(void *dest, size_t sizeInBytes, const void *src, size_t count)</div><div class="ttdoc">Bounds checking replacement for memmove() </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00428">misc.h:428</a></div></div>
<div class="ttc" id="class_block_oriented_cipher_mode_base_html_af56879c9784d5f70120f46fb60941b9f"><div class="ttname"><a href="class_block_oriented_cipher_mode_base.html#af56879c9784d5f70120f46fb60941b9f">BlockOrientedCipherModeBase::Resynchronize</a></div><div class="ttdeci">void Resynchronize(const byte *iv, int length=-1)</div><div class="ttdoc">Resynchronize with an IV. </div><div class="ttdef"><b>Definition:</b> <a href="modes_8h_source.html#l00199">modes.h:199</a></div></div>
<div class="ttc" id="misc_8h_html"><div class="ttname"><a href="misc_8h.html">misc.h</a></div><div class="ttdoc">Utility functions for the Crypto++ library. </div></div>
<div class="ttc" id="misc_8h_html_a44fad9d8c25e8aca3a7ee29345516f0a"><div class="ttname"><a href="misc_8h.html#a44fad9d8c25e8aca3a7ee29345516f0a">IncrementCounterByOne</a></div><div class="ttdeci">void IncrementCounterByOne(byte *inout, unsigned int size)</div><div class="ttdoc">Performs an addition with carry on a block of bytes. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l01108">misc.h:1108</a></div></div>
<div class="ttc" id="modes_8h_html"><div class="ttname"><a href="modes_8h.html">modes.h</a></div><div class="ttdoc">Classes for block cipher modes of operation. </div></div>
<div class="ttc" id="cryptlib_8h_html_a353ccabf5ddc119a6a33e92f7b9961c7"><div class="ttname"><a href="cryptlib_8h.html#a353ccabf5ddc119a6a33e92f7b9961c7">CipherDir</a></div><div class="ttdeci">CipherDir</div><div class="ttdoc">Specifies a direction for a cipher to operate. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00120">cryptlib.h:120</a></div></div>
<div class="ttc" id="misc_8h_html_a5f6fcbaaf6f72fe46a6d911b033dfea0"><div class="ttname"><a href="misc_8h.html#a5f6fcbaaf6f72fe46a6d911b033dfea0">memcpy_s</a></div><div class="ttdeci">void memcpy_s(void *dest, size_t sizeInBytes, const void *src, size_t count)</div><div class="ttdoc">Bounds checking replacement for memcpy() </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00383">misc.h:383</a></div></div>
<div class="ttc" id="class_sec_block_html_a90d46e577c951d81a2d25a4742a3e979"><div class="ttname"><a href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">SecBlock::New</a></div><div class="ttdeci">void New(size_type newSize)</div><div class="ttdoc">Change size without preserving contents. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00729">secblock.h:729</a></div></div>
<div class="ttc" id="class_c_b_c___c_t_s___encryption_html_a8c1cd02b169591b06956b15347a588c6"><div class="ttname"><a href="class_c_b_c___c_t_s___encryption.html#a8c1cd02b169591b06956b15347a588c6">CBC_CTS_Encryption::ProcessLastBlock</a></div><div class="ttdeci">size_t ProcessLastBlock(byte *outString, size_t outLength, const byte *inString, size_t inLength)</div><div class="ttdoc">Encrypt or decrypt the last block of data. </div><div class="ttdef"><b>Definition:</b> <a href="modes_8cpp_source.html#l00187">modes.cpp:187</a></div></div>
<div class="ttc" id="cryptlib_8h_html_a353ccabf5ddc119a6a33e92f7b9961c7a244e5e74f856cdd5aafc1005877a2f61"><div class="ttname"><a href="cryptlib_8h.html#a353ccabf5ddc119a6a33e92f7b9961c7a244e5e74f856cdd5aafc1005877a2f61">ENCRYPTION</a></div><div class="ttdoc">the cipher is performing encryption </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00122">cryptlib.h:122</a></div></div>
<div class="ttc" id="class_block_transformation_html_adfdb78b033996020435c3dcffdca76ce"><div class="ttname"><a href="class_block_transformation.html#adfdb78b033996020435c3dcffdca76ce">BlockTransformation::BlockSize</a></div><div class="ttdeci">virtual unsigned int BlockSize() const =0</div><div class="ttdoc">Provides the block size of the cipher. </div></div>
<div class="ttc" id="class_cipher_mode_final_template___cipher_holder_html"><div class="ttname"><a href="class_cipher_mode_final_template___cipher_holder.html">CipherModeFinalTemplate_CipherHolder</a></div><div class="ttdoc">Block cipher mode of operation aggregate. </div><div class="ttdef"><b>Definition:</b> <a href="modes_8h_source.html#l00284">modes.h:284</a></div></div>
<div class="ttc" id="class_c_b_c___c_t_s___decryption_html_acde5f7846361f888d0ad275e0e78c67a"><div class="ttname"><a href="class_c_b_c___c_t_s___decryption.html#acde5f7846361f888d0ad275e0e78c67a">CBC_CTS_Decryption::ProcessLastBlock</a></div><div class="ttdeci">size_t ProcessLastBlock(byte *outString, size_t outLength, const byte *inString, size_t inLength)</div><div class="ttdoc">Encrypt or decrypt the last block of data. </div><div class="ttdef"><b>Definition:</b> <a href="modes_8cpp_source.html#l00238">modes.cpp:238</a></div></div>
<div class="ttc" id="pch_8h_html"><div class="ttname"><a href="pch_8h.html">pch.h</a></div><div class="ttdoc">Precompiled header file. </div></div>
<div class="ttc" id="misc_8h_html_ac8391e7d9d613a6c401787d2cdab1f51"><div class="ttname"><a href="misc_8h.html#ac8391e7d9d613a6c401787d2cdab1f51">UnsignedMin</a></div><div class="ttdeci">const T1 UnsignedMin(const T1 &a, const T2 &b)</div><div class="ttdoc">Safe comparison of values that could be neagtive and incorrectly promoted. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00546">misc.h:546</a></div></div>
<div class="ttc" id="trap_8h_html_adf3b392588bc94cbeae9f415a78c7b95"><div class="ttname"><a href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a></div><div class="ttdeci">#define CRYPTOPP_ASSERT(exp)</div><div class="ttdoc">Debugging and diagnostic assertion. </div><div class="ttdef"><b>Definition:</b> <a href="trap_8h_source.html#l00060">trap.h:60</a></div></div>
<div class="ttc" id="namespace_name_html_aa93e40d0259a59959d270e6c82a9f1eb"><div class="ttname"><a href="namespace_name.html#aa93e40d0259a59959d270e6c82a9f1eb">Name::BlockSize</a></div><div class="ttdeci">const char * BlockSize()</div><div class="ttdoc">int, in bytes </div><div class="ttdef"><b>Definition:</b> <a href="argnames_8h_source.html#l00027">argnames.h:27</a></div></div>
<div class="ttc" id="des_8h_html"><div class="ttname"><a href="des_8h.html">des.h</a></div><div class="ttdoc">Classes for DES, 2-key Triple-DES, 3-key Triple-DES and DESX. </div></div>
<div class="ttc" id="misc_8h_html_a6aaae7768600b9d735a5e1b8192035f8"><div class="ttname"><a href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a></div><div class="ttdeci">void xorbuf(byte *buf, const byte *mask, size_t count)</div><div class="ttdoc">Performs an XOR of a buffer with a mask. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8cpp_source.html#l00032">misc.cpp:32</a></div></div>
<div class="ttc" id="class_block_transformation_html_adec6c003f0e1539c0a9da64e2d17352da692d5da11e5444e32f6e4e091623eaab"><div class="ttname"><a href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352da692d5da11e5444e32f6e4e091623eaab">BlockTransformation::BT_XorInput</a></div><div class="ttdoc">Xor inputs before transformation. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00874">cryptlib.h:874</a></div></div>
<div class="ttc" id="class_block_oriented_cipher_mode_base_html_a1d095f1ee08abb9f03f0ed16a32c6b04"><div class="ttname"><a href="class_block_oriented_cipher_mode_base.html#a1d095f1ee08abb9f03f0ed16a32c6b04">BlockOrientedCipherModeBase::UncheckedSetKey</a></div><div class="ttdeci">void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params)</div><div class="ttdoc">Sets the key for this object without performing parameter validation. </div><div class="ttdef"><b>Definition:</b> <a href="modes_8cpp_source.html#l00151">modes.cpp:151</a></div></div>
<div class="ttc" id="strciphr_8h_html_ab4a226527d2bd01ff19bfa14d0974227"><div class="ttname"><a href="strciphr_8h.html#ab4a226527d2bd01ff19bfa14d0974227">KeystreamOperation</a></div><div class="ttdeci">KeystreamOperation</div><div class="ttdoc">Keystream operation flags. </div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00088">strciphr.h:88</a></div></div>
<div class="ttc" id="class_block_transformation_html_adec6c003f0e1539c0a9da64e2d17352da4123a7839e78785bd6495ac651c06855"><div class="ttname"><a href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352da4123a7839e78785bd6495ac651c06855">BlockTransformation::BT_ReverseDirection</a></div><div class="ttdoc">perform the transformation in reverse </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00876">cryptlib.h:876</a></div></div>
<div class="ttc" id="namespace_crypto_p_p_html"><div class="ttname"><a href="namespace_crypto_p_p.html">CryptoPP</a></div><div class="ttdoc">Crypto++ library namespace. </div></div>
<div class="ttc" id="class_simple_keying_interface_html_a71039112353cc70e9859ebd95037cc1a"><div class="ttname"><a href="class_simple_keying_interface.html#a71039112353cc70e9859ebd95037cc1a">SimpleKeyingInterface::IsResynchronizable</a></div><div class="ttdeci">bool IsResynchronizable() const</div><div class="ttdoc">Determines if the object can be resynchronized. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00693">cryptlib.h:693</a></div></div>
<div class="ttc" id="class_c_b_c___encryption_html_ad4efdd9fd6d832b234771754cd51d20a"><div class="ttname"><a href="class_c_b_c___encryption.html#ad4efdd9fd6d832b234771754cd51d20a">CBC_Encryption::ProcessData</a></div><div class="ttdeci">void ProcessData(byte *outString, const byte *inString, size_t length)</div><div class="ttdoc">Encrypt or decrypt an array of bytes. </div><div class="ttdef"><b>Definition:</b> <a href="modes_8cpp_source.html#l00175">modes.cpp:175</a></div></div>
<div class="ttc" id="class_e_c_b___one_way_html_a4d8c291d821d86f7f4caa3cf95d1834c"><div class="ttname"><a href="class_e_c_b___one_way.html#a4d8c291d821d86f7f4caa3cf95d1834c">ECB_OneWay::ProcessData</a></div><div class="ttdeci">void ProcessData(byte *outString, const byte *inString, size_t length)</div><div class="ttdoc">Encrypt or decrypt an array of bytes. </div><div class="ttdef"><b>Definition:</b> <a href="modes_8cpp_source.html#l00169">modes.cpp:169</a></div></div>
<div class="ttc" id="class_block_transformation_html_adec6c003f0e1539c0a9da64e2d17352da29b5a55fe327fe4764833fd427298deb"><div class="ttname"><a href="class_block_transformation.html#adec6c003f0e1539c0a9da64e2d17352da29b5a55fe327fe4764833fd427298deb">BlockTransformation::BT_InBlockIsCounter</a></div><div class="ttdoc">inBlock is a counter </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00870">cryptlib.h:870</a></div></div>
<div class="ttc" id="class_name_value_pairs_html"><div class="ttname"><a href="class_name_value_pairs.html">NameValuePairs</a></div><div class="ttdoc">Interface for retrieving values given their names. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00290">cryptlib.h:290</a></div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated on Sun Sep 16 2018 07:57:57 for Crypto++ by  <a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.14
</small></address>
</body>
</html>
distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-release
>
by-pkgid
>
0a67b807a02637f2cae68649d519a89d
>
files
>
2443
