<!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++: pwdbased.h Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="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">pwdbased.h</div> </div>
</div><!--header-->
<div class="contents">
<a href="pwdbased_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// pwdbased.h - 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> <span class="comment">// Cutover to KeyDerivationFunction interface by Uri Blumenthal</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Marcel Raad and Jeffrey Walton in March 2018.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"></span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">/// \file pwdbased.h</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">/// \brief Password based key derivation functions</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#ifndef CRYPTOPP_PWDBASED_H</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#define CRYPTOPP_PWDBASED_H</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "<a class="code" href="cryptlib_8h.html">cryptlib.h</a>"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "hrtimer.h"</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "<a class="code" href="integer_8h.html">integer.h</a>"</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "<a class="code" href="argnames_8h.html">argnames.h</a>"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "<a class="code" href="hmac_8h.html">hmac.h</a>"</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// ******************** PBKDF1 ********************</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">/// \brief PBKDF1 from PKCS #5</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"></span><span class="comment">/// \tparam T a HashTransformation class</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00024"></a><span class="lineno"><a class="line" href="class_p_k_c_s5___p_b_k_d_f1.html"> 24</a></span> <span class="keyword">class </span><a class="code" href="class_p_k_c_s5___p_b_k_d_f1.html">PKCS5_PBKDF1</a> : <span class="keyword">public</span> <a class="code" href="struct_password_based_key_derivation_function.html">PasswordBasedKeyDerivationFunction</a></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="keyword">public</span>:</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_p_k_c_s5___p_b_k_d_f1.html">PKCS5_PBKDF1</a>() {}</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">static</span> std::string StaticAlgorithmName () {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">const</span> std::string name(std::string(<span class="stringliteral">"PBKDF1("</span>) +</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  std::string(T::StaticAlgorithmName()) + std::string(<span class="stringliteral">")"</span>));</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">return</span> name;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  }</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>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="class_p_k_c_s5___p_b_k_d_f1.html#a7a12ab74625092343b438cf38c63928c"> 36</a></span>  std::string <a class="code" href="class_p_k_c_s5___p_b_k_d_f1.html#a7a12ab74625092343b438cf38c63928c">AlgorithmName</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">return</span> StaticAlgorithmName();</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  }</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="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordtype">size_t</span> MaxDerivedKeyLength()<span class="keyword"> const </span>{</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keywordtype">size_t</span><span class="keyword">></span>(T::DIGESTSIZE);</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  }</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f1.html#ac5ef9f47a5dcd83c686581ac1a18cff4">GetValidDerivedLength</a>(<span class="keywordtype">size_t</span> keylength) <span class="keyword">const</span>;</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="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">virtual</span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f1.html#a0a68829c5fa0558aa6f2484492923e66">DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen, <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen,</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a>& params = <a class="code" href="cryptlib_8h.html#a04be65ada92ccb1e6aac0d94b4cc394b">g_nullNameValuePairs</a>) <span class="keyword">const</span>;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"></span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> /// \brief Derive a key from a secret seed</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> /// \param derived the derived output buffer</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> /// \param derivedLen the size of the derived buffer, in bytes</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> /// \param purpose a purpose byte</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> /// \param secret the seed input buffer</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> /// \param secretLen the size of the secret buffer, in bytes</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> /// \param salt the salt input buffer</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> /// \param saltLen the size of the salt buffer, in bytes</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> /// \param iterations the number of iterations</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> /// \param timeInSeconds the in seconds</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> /// \returns the number of iterations performed</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> /// \throws InvalidDerivedLength if <tt>derivedLen</tt> is invalid for the scheme</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> /// \details DeriveKey() provides a standard interface to derive a key from</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> /// a seed and other parameters. Each class that derives from KeyDerivationFunction</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> /// provides an overload that accepts most parameters used by the derivation function.</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> /// \details If <tt>timeInSeconds</tt> is <tt>&gt; 0.0</tt> then DeriveKey will run for</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> /// the specified amount of time. If <tt>timeInSeconds</tt> is <tt>0.0</tt> then DeriveKey</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> /// will run for the specified number of iterations.</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> /// \details PKCS #5 says PBKDF1 should only take 8-byte salts. This implementation</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> /// allows salts of any length.</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f1.html#a0a68829c5fa0558aa6f2484492923e66">DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen, byte purpose, <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen, <span class="keyword">const</span> byte *salt, <span class="keywordtype">size_t</span> saltLen, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iterations, <span class="keywordtype">double</span> timeInSeconds=0) <span class="keyword">const</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="keyword">protected</span>:</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">const</span> <a class="code" href="class_algorithm.html">Algorithm</a> & GetAlgorithm()<span class="keyword"> const </span>{</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  }</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="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="class_p_k_c_s5___p_b_k_d_f1.html#ac5ef9f47a5dcd83c686581ac1a18cff4"> 82</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f1.html#ac5ef9f47a5dcd83c686581ac1a18cff4">PKCS5_PBKDF1<T>::GetValidDerivedLength</a>(<span class="keywordtype">size_t</span> keylength)<span class="keyword"> const</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="keyword"></span>{</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">if</span> (keylength > MaxDerivedLength())</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">return</span> MaxDerivedLength();</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> keylength;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }</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> <span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="class_p_k_c_s5___p_b_k_d_f1.html#a0a68829c5fa0558aa6f2484492923e66"> 90</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f1.html#a0a68829c5fa0558aa6f2484492923e66">PKCS5_PBKDF1<T>::DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen,</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a>& params)<span class="keyword"> const</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keyword"></span>{</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(secret <span class="comment">/*&& secretLen*/</span>);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derived && derivedLen);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derivedLen <= MaxDerivedLength());</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>  byte purpose = (byte)params.<a class="code" href="class_name_value_pairs.html#a7ddb654b7afcd1a04422a7b4b01366d9">GetIntValueWithDefault</a>(<span class="stringliteral">"Purpose"</span>, 0);</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iterations = (<span class="keywordtype">unsigned</span> int)params.<a class="code" href="class_name_value_pairs.html#a7ddb654b7afcd1a04422a7b4b01366d9">GetIntValueWithDefault</a>(<span class="stringliteral">"Iterations"</span>, 1);</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordtype">double</span> timeInSeconds = 0.0f;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  (void)params.<a class="code" href="class_name_value_pairs.html#a5357c3a09602e44671d1e42cb9a9408d">GetValue</a>(<span class="stringliteral">"TimeInSeconds"</span>, timeInSeconds);</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a> salt;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  (void)params.<a class="code" href="class_name_value_pairs.html#a5357c3a09602e44671d1e42cb9a9408d">GetValue</a>(<a class="code" href="namespace_name.html#a9a866180d2de15c1f9a4d8f8e85bc489">Name::Salt</a>(), salt);</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">return</span> DeriveKey(derived, derivedLen, purpose, secret, secretLen, salt.<a class="code" href="class_const_byte_array_parameter.html#ab89acc8dae383f2663dd3864651e8ef1">begin</a>(), salt.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>(), iterations, timeInSeconds);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> }</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="class_p_k_c_s5___p_b_k_d_f1.html#afb5caf82f49da6acf985a29bcf54fd19"> 110</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f1.html#a0a68829c5fa0558aa6f2484492923e66">PKCS5_PBKDF1<T>::DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen, byte purpose, <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen, <span class="keyword">const</span> byte *salt, <span class="keywordtype">size_t</span> saltLen, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iterations, <span class="keywordtype">double</span> timeInSeconds)<span class="keyword"> const</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="keyword"></span>{</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(secret <span class="comment">/*&& secretLen*/</span>);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derived && derivedLen);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derivedLen <= MaxDerivedLength());</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(iterations > 0 || timeInSeconds > 0);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  CRYPTOPP_UNUSED(purpose);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  ThrowIfInvalidDerivedLength(derivedLen);</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="comment">// Business logic</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">if</span> (!iterations) { iterations = 1; }</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  T hash;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  hash.Update(secret, secretLen);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  hash.Update(salt, saltLen);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> buffer(hash.DigestSize());</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  hash.Final(buffer);</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>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="class_thread_user_timer.html">ThreadUserTimer</a> timer;</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="keywordflow">if</span> (timeInSeconds)</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  timer.StartTimer();</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>  <span class="keywordflow">for</span> (i=1; i<iterations || (timeInSeconds && (i%128!=0 || timer.ElapsedTimeAsDouble() < timeInSeconds)); i++)</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  hash.CalculateDigest(buffer, buffer, buffer.size());</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  memcpy(derived, buffer, derivedLen);</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">return</span> i;</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> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment">// ******************** PKCS5_PBKDF2_HMAC ********************</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment"></span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment">/// \brief PBKDF2 from PKCS #5</span></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment">/// \tparam T a HashTransformation class</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00148"></a><span class="lineno"><a class="line" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html"> 148</a></span> <span class="keyword">class </span><a class="code" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html">PKCS5_PBKDF2_HMAC</a> : <span class="keyword">public</span> <a class="code" href="struct_password_based_key_derivation_function.html">PasswordBasedKeyDerivationFunction</a></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> <span class="keyword">public</span>:</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html">PKCS5_PBKDF2_HMAC</a>() {}</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>  <span class="keyword">static</span> std::string StaticAlgorithmName () {</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keyword">const</span> std::string name(std::string(<span class="stringliteral">"PBKDF2_HMAC("</span>) +</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  std::string(T::StaticAlgorithmName()) + std::string(<span class="stringliteral">")"</span>));</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">return</span> name;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00160"></a><span class="lineno"><a class="line" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#a3cbe4a7c550a8ba3a8366bea30eac557"> 160</a></span>  std::string <a class="code" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#a3cbe4a7c550a8ba3a8366bea30eac557">AlgorithmName</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">return</span> StaticAlgorithmName();</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> </div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="comment">// should multiply by T::DIGESTSIZE, but gets overflow that way</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">size_t</span> MaxDerivedKeyLength()<span class="keyword"> const </span>{</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">return</span> 0xffffffffU;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  }</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#a476cf0b4f00f590343d4db018039c57c">GetValidDerivedLength</a>(<span class="keywordtype">size_t</span> keylength) <span class="keyword">const</span>;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#ac3b81a978c1d59da9a2d21535e7d5b36">DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen, <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen,</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a>& params = <a class="code" href="cryptlib_8h.html#a04be65ada92ccb1e6aac0d94b4cc394b">g_nullNameValuePairs</a>) <span class="keyword">const</span>;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"></span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment"> /// \brief Derive a key from a secret seed</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment"> /// \param derived the derived output buffer</span></div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment"> /// \param derivedLen the size of the derived buffer, in bytes</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment"> /// \param purpose a purpose byte</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment"> /// \param secret the seed input buffer</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment"> /// \param secretLen the size of the secret buffer, in bytes</span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment"> /// \param salt the salt input buffer</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment"> /// \param saltLen the size of the salt buffer, in bytes</span></div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment"> /// \param iterations the number of iterations</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment"> /// \param timeInSeconds the in seconds</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment"> /// \returns the number of iterations performed</span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"> /// \throws InvalidDerivedLength if <tt>derivedLen</tt> is invalid for the scheme</span></div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment"> /// \details DeriveKey() provides a standard interface to derive a key from</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment"> /// a seed and other parameters. Each class that derives from KeyDerivationFunction</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment"> /// provides an overload that accepts most parameters used by the derivation function.</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment"> /// \details If <tt>timeInSeconds</tt> is <tt>&gt; 0.0</tt> then DeriveKey will run for</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment"> /// the specified amount of time. If <tt>timeInSeconds</tt> is <tt>0.0</tt> then DeriveKey</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment"> /// will run for the specified number of iterations.</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment"></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#ac3b81a978c1d59da9a2d21535e7d5b36">DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen, byte purpose, <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen,</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keyword">const</span> byte *salt, <span class="keywordtype">size_t</span> saltLen, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iterations, <span class="keywordtype">double</span> timeInSeconds=0) <span class="keyword">const</span>;</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keyword">const</span> <a class="code" href="class_algorithm.html">Algorithm</a> & GetAlgorithm()<span class="keyword"> const </span>{</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  }</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> };</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00206"></a><span class="lineno"><a class="line" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#a476cf0b4f00f590343d4db018039c57c"> 206</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#a476cf0b4f00f590343d4db018039c57c">PKCS5_PBKDF2_HMAC<T>::GetValidDerivedLength</a>(<span class="keywordtype">size_t</span> keylength)<span class="keyword"> const</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="keyword"></span>{</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">if</span> (keylength > MaxDerivedLength())</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">return</span> MaxDerivedLength();</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">return</span> keylength;</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> }</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00214"></a><span class="lineno"><a class="line" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#ac3b81a978c1d59da9a2d21535e7d5b36"> 214</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#ac3b81a978c1d59da9a2d21535e7d5b36">PKCS5_PBKDF2_HMAC<T>::DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen,</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a>& params)<span class="keyword"> const</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="keyword"></span>{</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(secret <span class="comment">/*&& secretLen*/</span>);</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derived && derivedLen);</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derivedLen <= MaxDerivedLength());</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  byte purpose = (byte)params.<a class="code" href="class_name_value_pairs.html#a7ddb654b7afcd1a04422a7b4b01366d9">GetIntValueWithDefault</a>(<span class="stringliteral">"Purpose"</span>, 0);</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iterations = (<span class="keywordtype">unsigned</span> int)params.<a class="code" href="class_name_value_pairs.html#a7ddb654b7afcd1a04422a7b4b01366d9">GetIntValueWithDefault</a>(<span class="stringliteral">"Iterations"</span>, 1);</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordtype">double</span> timeInSeconds = 0.0f;</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  (void)params.<a class="code" href="class_name_value_pairs.html#a5357c3a09602e44671d1e42cb9a9408d">GetValue</a>(<span class="stringliteral">"TimeInSeconds"</span>, timeInSeconds);</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <a class="code" href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a> salt;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  (void)params.<a class="code" href="class_name_value_pairs.html#a5357c3a09602e44671d1e42cb9a9408d">GetValue</a>(<a class="code" href="namespace_name.html#a9a866180d2de15c1f9a4d8f8e85bc489">Name::Salt</a>(), salt);</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="keywordflow">return</span> DeriveKey(derived, derivedLen, purpose, secret, secretLen, salt.<a class="code" href="class_const_byte_array_parameter.html#ab89acc8dae383f2663dd3864651e8ef1">begin</a>(), salt.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>(), iterations, timeInSeconds);</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> }</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00234"></a><span class="lineno"><a class="line" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#a7c1c1a55ac2a48aee85e3cbc8dd9396d"> 234</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#ac3b81a978c1d59da9a2d21535e7d5b36">PKCS5_PBKDF2_HMAC<T>::DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen, byte purpose, <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen, <span class="keyword">const</span> byte *salt, <span class="keywordtype">size_t</span> saltLen, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iterations, <span class="keywordtype">double</span> timeInSeconds)<span class="keyword"> const</span></div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="keyword"></span>{</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(secret <span class="comment">/*&& secretLen*/</span>);</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derived && derivedLen);</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derivedLen <= MaxDerivedLength());</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(iterations > 0 || timeInSeconds > 0);</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  CRYPTOPP_UNUSED(purpose);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  ThrowIfInvalidDerivedLength(derivedLen);</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">// Business logic</span></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">if</span> (!iterations) { iterations = 1; }</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>  <a class="code" href="class_h_m_a_c.html">HMAC<T></a> hmac(secret, secretLen);</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> buffer(hmac.<a class="code" href="class_h_m_a_c___base.html#ac47c7569f590e0a2ff2339d058c3337d">DigestSize</a>());</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <a class="code" href="class_thread_user_timer.html">ThreadUserTimer</a> timer;</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=1;</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">while</span> (derivedLen > 0)</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  {</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(salt, saltLen);</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> j;</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">for</span> (j=0; j<4; j++)</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  {</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  byte b = byte(i >> ((3-j)*8));</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(&b, 1);</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>  hmac.<a class="code" href="class_hash_transformation.html#aa0b8c7a110d8968268fd02ec32b9a8e8">Final</a>(buffer);</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="preprocessor">#if CRYPTOPP_MSC_VERSION</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> segmentLen = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(derivedLen, buffer.size());</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <a class="code" href="misc_8h.html#a5f6fcbaaf6f72fe46a6d911b033dfea0">memcpy_s</a>(derived, segmentLen, buffer, segmentLen);</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> segmentLen = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(derivedLen, buffer.size());</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  memcpy(derived, buffer, segmentLen);</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> </div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordflow">if</span> (timeInSeconds)</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  {</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  timeInSeconds = timeInSeconds / ((derivedLen + buffer.size() - 1) / buffer.size());</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  timer.StartTimer();</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  }</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>  <span class="keywordflow">for</span> (j=1; j<iterations || (timeInSeconds && (j%128!=0 || timer.ElapsedTimeAsDouble() < timeInSeconds)); j++)</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  {</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  hmac.<a class="code" href="class_hash_transformation.html#af8124c4fca23b74bbdc43660bdae692c">CalculateDigest</a>(buffer, buffer, buffer.size());</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <a class="code" href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a>(derived, buffer, segmentLen);</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> </div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keywordflow">if</span> (timeInSeconds)</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  {</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  iterations = j;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  timeInSeconds = 0;</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  }</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  derived += segmentLen;</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  derivedLen -= segmentLen;</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  i++;</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  }</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> </div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">return</span> iterations;</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> }</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">// ******************** PKCS12_PBKDF ********************</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="comment"></span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment">/// \brief PBKDF from PKCS #12, appendix B</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment">/// \tparam T a HashTransformation class</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00302"></a><span class="lineno"><a class="line" href="class_p_k_c_s12___p_b_k_d_f.html"> 302</a></span> <span class="keyword">class </span><a class="code" href="class_p_k_c_s12___p_b_k_d_f.html">PKCS12_PBKDF</a> : <span class="keyword">public</span> <a class="code" href="struct_password_based_key_derivation_function.html">PasswordBasedKeyDerivationFunction</a></div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span> {</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_p_k_c_s12___p_b_k_d_f.html">PKCS12_PBKDF</a>() {}</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span> </div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keyword">static</span> std::string StaticAlgorithmName () {</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keyword">const</span> std::string name(std::string(<span class="stringliteral">"PBKDF_PKCS12("</span>) +</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  std::string(T::StaticAlgorithmName()) + std::string(<span class="stringliteral">")"</span>));</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">return</span> name;</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  }</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> </div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00314"></a><span class="lineno"><a class="line" href="class_p_k_c_s12___p_b_k_d_f.html#a8abd0e12203a88a4251cef342e952fc6"> 314</a></span>  std::string <a class="code" href="class_p_k_c_s12___p_b_k_d_f.html#a8abd0e12203a88a4251cef342e952fc6">AlgorithmName</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">return</span> StaticAlgorithmName();</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  }</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> </div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="comment">// TODO - check this</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordtype">size_t</span> MaxDerivedKeyLength()<span class="keyword"> const </span>{</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keywordtype">size_t</span><span class="keyword">></span>(-1);</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  }</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s12___p_b_k_d_f.html#a964aa86a640bea9809b15d8b7f33e026">GetValidDerivedLength</a>(<span class="keywordtype">size_t</span> keylength) <span class="keyword">const</span>;</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span> </div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s12___p_b_k_d_f.html#a4adf0129a1902740714d35706e4fda44">DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen, <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen,</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a>& params = <a class="code" href="cryptlib_8h.html#a04be65ada92ccb1e6aac0d94b4cc394b">g_nullNameValuePairs</a>) <span class="keyword">const</span>;</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span> <span class="comment"></span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="comment"> /// \brief Derive a key from a secret seed</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="comment"> /// \param derived the derived output buffer</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="comment"> /// \param derivedLen the size of the derived buffer, in bytes</span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="comment"> /// \param purpose a purpose byte</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span> <span class="comment"> /// \param secret the seed input buffer</span></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="comment"> /// \param secretLen the size of the secret buffer, in bytes</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="comment"> /// \param salt the salt input buffer</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> <span class="comment"> /// \param saltLen the size of the salt buffer, in bytes</span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="comment"> /// \param iterations the number of iterations</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="comment"> /// \param timeInSeconds the in seconds</span></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="comment"> /// \returns the number of iterations performed</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span> <span class="comment"> /// \throws InvalidDerivedLength if <tt>derivedLen</tt> is invalid for the scheme</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="comment"> /// \details DeriveKey() provides a standard interface to derive a key from</span></div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="comment"> /// a seed and other parameters. Each class that derives from KeyDerivationFunction</span></div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> <span class="comment"> /// provides an overload that accepts most parameters used by the derivation function.</span></div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="comment"> /// \details If <tt>timeInSeconds</tt> is <tt>&gt; 0.0</tt> then DeriveKey will run for</span></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="comment"> /// the specified amount of time. If <tt>timeInSeconds</tt> is <tt>0.0</tt> then DeriveKey</span></div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="comment"> /// will run for the specified number of iterations.</span></div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="comment"></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s12___p_b_k_d_f.html#a4adf0129a1902740714d35706e4fda44">DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen, byte purpose, <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen,</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keyword">const</span> byte *salt, <span class="keywordtype">size_t</span> saltLen, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iterations, <span class="keywordtype">double</span> timeInSeconds) <span class="keyword">const</span>;</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span> </div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="comment">// KeyDerivationFunction interface</span></div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="keyword">const</span> <a class="code" href="class_algorithm.html">Algorithm</a> & GetAlgorithm()<span class="keyword"> const </span>{</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  }</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> };</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span> </div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00359"></a><span class="lineno"><a class="line" href="class_p_k_c_s12___p_b_k_d_f.html#a964aa86a640bea9809b15d8b7f33e026"> 359</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s12___p_b_k_d_f.html#a964aa86a640bea9809b15d8b7f33e026">PKCS12_PBKDF<T>::GetValidDerivedLength</a>(<span class="keywordtype">size_t</span> keylength)<span class="keyword"> const</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="keyword"></span>{</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">if</span> (keylength > MaxDerivedLength())</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">return</span> MaxDerivedLength();</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">return</span> keylength;</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span> }</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> </div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00367"></a><span class="lineno"><a class="line" href="class_p_k_c_s12___p_b_k_d_f.html#a4adf0129a1902740714d35706e4fda44"> 367</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s12___p_b_k_d_f.html#a4adf0129a1902740714d35706e4fda44">PKCS12_PBKDF<T>::DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen,</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a>& params)<span class="keyword"> const</span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="keyword"></span>{</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(secret <span class="comment">/*&& secretLen*/</span>);</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derived && derivedLen);</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derivedLen <= MaxDerivedLength());</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span> </div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  byte purpose = (byte)params.<a class="code" href="class_name_value_pairs.html#a7ddb654b7afcd1a04422a7b4b01366d9">GetIntValueWithDefault</a>(<span class="stringliteral">"Purpose"</span>, 0);</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iterations = (<span class="keywordtype">unsigned</span> int)params.<a class="code" href="class_name_value_pairs.html#a7ddb654b7afcd1a04422a7b4b01366d9">GetIntValueWithDefault</a>(<span class="stringliteral">"Iterations"</span>, 1);</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> </div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordtype">double</span> timeInSeconds = 0.0f;</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  (void)params.<a class="code" href="class_name_value_pairs.html#a5357c3a09602e44671d1e42cb9a9408d">GetValue</a>(<span class="stringliteral">"TimeInSeconds"</span>, timeInSeconds);</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="comment">// NULL or 0 length salt OK</span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <a class="code" href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a> salt;</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  (void)params.<a class="code" href="class_name_value_pairs.html#a5357c3a09602e44671d1e42cb9a9408d">GetValue</a>(<a class="code" href="namespace_name.html#a9a866180d2de15c1f9a4d8f8e85bc489">Name::Salt</a>(), salt);</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span> </div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordflow">return</span> DeriveKey(derived, derivedLen, purpose, secret, secretLen, salt.<a class="code" href="class_const_byte_array_parameter.html#ab89acc8dae383f2663dd3864651e8ef1">begin</a>(), salt.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>(), iterations, timeInSeconds);</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> }</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> </div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00388"></a><span class="lineno"><a class="line" href="class_p_k_c_s12___p_b_k_d_f.html#a29a7b3f34e198a847d9f781d1e489838"> 388</a></span> <span class="keywordtype">size_t</span> <a class="code" href="class_p_k_c_s12___p_b_k_d_f.html#a4adf0129a1902740714d35706e4fda44">PKCS12_PBKDF<T>::DeriveKey</a>(byte *derived, <span class="keywordtype">size_t</span> derivedLen, byte purpose, <span class="keyword">const</span> byte *secret, <span class="keywordtype">size_t</span> secretLen, <span class="keyword">const</span> byte *salt, <span class="keywordtype">size_t</span> saltLen, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iterations, <span class="keywordtype">double</span> timeInSeconds)<span class="keyword"> const</span></div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span> <span class="keyword"></span>{</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(secret <span class="comment">/*&& secretLen*/</span>);</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derived && derivedLen);</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(derivedLen <= MaxDerivedLength());</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(iterations > 0 || timeInSeconds > 0);</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span> </div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  ThrowIfInvalidDerivedLength(derivedLen);</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span> </div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="comment">// Business logic</span></div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordflow">if</span> (!iterations) { iterations = 1; }</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span> </div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> v = T::BLOCKSIZE; <span class="comment">// v is in bytes rather than bits as in PKCS #12</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> DLen = v, SLen = <a class="code" href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a>(saltLen, v);</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> PLen = <a class="code" href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a>(secretLen, v), ILen = SLen + PLen;</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> buffer(DLen + SLen + PLen);</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  byte *D = buffer, *S = buffer+DLen, *P = buffer+DLen+SLen, *I = S;</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span> </div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  memset(D, purpose, DLen);</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordtype">size_t</span> i;</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">for</span> (i=0; i<SLen; i++)</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  S[i] = salt[i % saltLen];</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keywordflow">for</span> (i=0; i<PLen; i++)</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  P[i] = secret[i % secretLen];</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span> </div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  T hash;</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> Ai(T::DIGESTSIZE), B(v);</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <a class="code" href="class_thread_user_timer.html">ThreadUserTimer</a> timer;</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="keywordflow">while</span> (derivedLen > 0)</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  {</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  hash.CalculateDigest(Ai, buffer, buffer.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> </div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">if</span> (timeInSeconds)</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  {</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  timeInSeconds = timeInSeconds / ((derivedLen + Ai.size() - 1) / Ai.size());</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  timer.StartTimer();</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  }</div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> </div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keywordflow">for</span> (i=1; i<iterations || (timeInSeconds && (i%128!=0 || timer.ElapsedTimeAsDouble() < timeInSeconds)); i++)</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  hash.CalculateDigest(Ai, Ai, Ai.size());</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span> </div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="keywordflow">if</span> (timeInSeconds)</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  {</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  iterations = (<span class="keywordtype">unsigned</span> int)i;</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  timeInSeconds = 0;</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  }</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="keywordflow">for</span> (i=0; i<B.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>(); i++)</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  B[i] = Ai[i % Ai.size()];</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span> </div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <a class="code" href="class_integer.html">Integer</a> B1(B, B.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  ++B1;</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keywordflow">for</span> (i=0; i<ILen; i+=v)</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  (<a class="code" href="class_integer.html">Integer</a>(I+i, v) + B1).Encode(I+i, v);</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span> </div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <span class="preprocessor">#if CRYPTOPP_MSC_VERSION</span></div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> segmentLen = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(derivedLen, Ai.size());</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <a class="code" href="misc_8h.html#a5f6fcbaaf6f72fe46a6d911b033dfea0">memcpy_s</a>(derived, segmentLen, Ai, segmentLen);</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> segmentLen = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(derivedLen, Ai.size());</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  std::memcpy(derived, Ai, segmentLen);</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span> </div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  derived += segmentLen;</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  derivedLen -= segmentLen;</div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  }</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keywordflow">return</span> iterations;</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span> }</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span> </div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span> NAMESPACE_END</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span> </div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="class_const_byte_array_parameter_html"><div class="ttname"><a href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a></div><div class="ttdoc">Used to pass byte array input as part of a NameValuePairs object. </div><div class="ttdef"><b>Definition:</b> <a href="algparam_8h_source.html#l00020">algparam.h:20</a></div></div>
<div class="ttc" id="class_name_value_pairs_html_a7ddb654b7afcd1a04422a7b4b01366d9"><div class="ttname"><a href="class_name_value_pairs.html#a7ddb654b7afcd1a04422a7b4b01366d9">NameValuePairs::GetIntValueWithDefault</a></div><div class="ttdeci">int GetIntValueWithDefault(const char *name, int defaultValue) const</div><div class="ttdoc">Get a named value with type int, with default. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00392">cryptlib.h:392</a></div></div>
<div class="ttc" id="argnames_8h_html"><div class="ttname"><a href="argnames_8h.html">argnames.h</a></div><div class="ttdoc">Standard names for retrieving values by name when working with NameValuePairs. </div></div>
<div class="ttc" id="class_const_byte_array_parameter_html_ab83dbf7e4d80c0304917a3cc1d3cf144"><div class="ttname"><a href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">ConstByteArrayParameter::size</a></div><div class="ttdeci">size_t size() const</div><div class="ttdoc">Length of the memory block. </div><div class="ttdef"><b>Definition:</b> <a href="algparam_8h_source.html#l00084">algparam.h:84</a></div></div>
<div class="ttc" id="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c_html_a3cbe4a7c550a8ba3a8366bea30eac557"><div class="ttname"><a href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#a3cbe4a7c550a8ba3a8366bea30eac557">PKCS5_PBKDF2_HMAC::AlgorithmName</a></div><div class="ttdeci">std::string AlgorithmName() const</div><div class="ttdoc">Provides the name of this algorithm. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00160">pwdbased.h:160</a></div></div>
<div class="ttc" id="class_h_m_a_c___base_html_ac47c7569f590e0a2ff2339d058c3337d"><div class="ttname"><a href="class_h_m_a_c___base.html#ac47c7569f590e0a2ff2339d058c3337d">HMAC_Base::DigestSize</a></div><div class="ttdeci">unsigned int DigestSize() const</div><div class="ttdoc">Provides the digest size of the hash. </div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00028">hmac.h:28</a></div></div>
<div class="ttc" id="cryptlib_8h_html"><div class="ttname"><a href="cryptlib_8h.html">cryptlib.h</a></div><div class="ttdoc">Abstract base classes that provide a uniform interface to this library. </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_p_k_c_s5___p_b_k_d_f2___h_m_a_c_html_a476cf0b4f00f590343d4db018039c57c"><div class="ttname"><a href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#a476cf0b4f00f590343d4db018039c57c">PKCS5_PBKDF2_HMAC::GetValidDerivedLength</a></div><div class="ttdeci">size_t GetValidDerivedLength(size_t keylength) const</div><div class="ttdoc">Returns a valid key length for the derivation function. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00206">pwdbased.h:206</a></div></div>
<div class="ttc" id="class_sec_byte_block_html"><div class="ttname"><a href="class_sec_byte_block.html">SecByteBlock</a></div><div class="ttdoc">SecBlock<byte> typedef. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00822">secblock.h:822</a></div></div>
<div class="ttc" id="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c_html"><div class="ttname"><a href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html">PKCS5_PBKDF2_HMAC</a></div><div class="ttdoc">PBKDF2 from PKCS #5. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00148">pwdbased.h:148</a></div></div>
<div class="ttc" id="class_p_k_c_s5___p_b_k_d_f1_html_ac5ef9f47a5dcd83c686581ac1a18cff4"><div class="ttname"><a href="class_p_k_c_s5___p_b_k_d_f1.html#ac5ef9f47a5dcd83c686581ac1a18cff4">PKCS5_PBKDF1::GetValidDerivedLength</a></div><div class="ttdeci">size_t GetValidDerivedLength(size_t keylength) const</div><div class="ttdoc">Returns a valid key length for the derivation function. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00082">pwdbased.h:82</a></div></div>
<div class="ttc" id="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c_html_ac3b81a978c1d59da9a2d21535e7d5b36"><div class="ttname"><a href="class_p_k_c_s5___p_b_k_d_f2___h_m_a_c.html#ac3b81a978c1d59da9a2d21535e7d5b36">PKCS5_PBKDF2_HMAC::DeriveKey</a></div><div class="ttdeci">size_t DeriveKey(byte *derived, size_t derivedLen, const byte *secret, size_t secretLen, const NameValuePairs &params=g_nullNameValuePairs) const</div><div class="ttdoc">Derive a key from a seed. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00214">pwdbased.h:214</a></div></div>
<div class="ttc" id="class_p_k_c_s5___p_b_k_d_f1_html"><div class="ttname"><a href="class_p_k_c_s5___p_b_k_d_f1.html">PKCS5_PBKDF1</a></div><div class="ttdoc">PBKDF1 from PKCS #5. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00024">pwdbased.h:24</a></div></div>
<div class="ttc" id="hmac_8h_html"><div class="ttname"><a href="hmac_8h.html">hmac.h</a></div><div class="ttdoc">Classes for HMAC message authentication codes. </div></div>
<div class="ttc" id="class_p_k_c_s12___p_b_k_d_f_html"><div class="ttname"><a href="class_p_k_c_s12___p_b_k_d_f.html">PKCS12_PBKDF</a></div><div class="ttdoc">PBKDF from PKCS #12, appendix B. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00302">pwdbased.h:302</a></div></div>
<div class="ttc" id="class_const_byte_array_parameter_html_ab89acc8dae383f2663dd3864651e8ef1"><div class="ttname"><a href="class_const_byte_array_parameter.html#ab89acc8dae383f2663dd3864651e8ef1">ConstByteArrayParameter::begin</a></div><div class="ttdeci">const byte * begin() const</div><div class="ttdoc">Pointer to the first byte in the memory block. </div><div class="ttdef"><b>Definition:</b> <a href="algparam_8h_source.html#l00080">algparam.h:80</a></div></div>
<div class="ttc" id="namespace_name_html_a9a866180d2de15c1f9a4d8f8e85bc489"><div class="ttname"><a href="namespace_name.html#a9a866180d2de15c1f9a4d8f8e85bc489">Name::Salt</a></div><div class="ttdeci">const char * Salt()</div><div class="ttdoc">ConstByteArrayParameter. </div><div class="ttdef"><b>Definition:</b> <a href="argnames_8h_source.html#l00087">argnames.h:87</a></div></div>
<div class="ttc" id="class_integer_html"><div class="ttname"><a href="class_integer.html">Integer</a></div><div class="ttdoc">Multiple precision integer with arithmetic operations. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00049">integer.h:49</a></div></div>
<div class="ttc" id="class_h_m_a_c___base_html_aefb8a1fb43ef8c9390ee89bbb41c83af"><div class="ttname"><a href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">HMAC_Base::Update</a></div><div class="ttdeci">void Update(const byte *input, size_t length)</div><div class="ttdoc">Updates a hash with additional input. </div><div class="ttdef"><b>Definition:</b> <a href="hmac_8cpp_source.html#l00060">hmac.cpp:60</a></div></div>
<div class="ttc" id="class_p_k_c_s12___p_b_k_d_f_html_a4adf0129a1902740714d35706e4fda44"><div class="ttname"><a href="class_p_k_c_s12___p_b_k_d_f.html#a4adf0129a1902740714d35706e4fda44">PKCS12_PBKDF::DeriveKey</a></div><div class="ttdeci">size_t DeriveKey(byte *derived, size_t derivedLen, const byte *secret, size_t secretLen, const NameValuePairs &params=g_nullNameValuePairs) const</div><div class="ttdoc">Derive a key from a seed. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00367">pwdbased.h:367</a></div></div>
<div class="ttc" id="class_p_k_c_s12___p_b_k_d_f_html_a8abd0e12203a88a4251cef342e952fc6"><div class="ttname"><a href="class_p_k_c_s12___p_b_k_d_f.html#a8abd0e12203a88a4251cef342e952fc6">PKCS12_PBKDF::AlgorithmName</a></div><div class="ttdeci">std::string AlgorithmName() const</div><div class="ttdoc">Provides the name of this algorithm. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00314">pwdbased.h:314</a></div></div>
<div class="ttc" id="misc_8h_html_abe412b0409249cb54899e97bc7d86424"><div class="ttname"><a href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a></div><div class="ttdeci">const T & STDMIN(const T &a, const T &b)</div><div class="ttdoc">Replacement function for std::min. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00507">misc.h:507</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="class_algorithm_html"><div class="ttname"><a href="class_algorithm.html">Algorithm</a></div><div class="ttdoc">Interface for all crypto algorithms. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00573">cryptlib.h:573</a></div></div>
<div class="ttc" id="class_hash_transformation_html_af8124c4fca23b74bbdc43660bdae692c"><div class="ttname"><a href="class_hash_transformation.html#af8124c4fca23b74bbdc43660bdae692c">HashTransformation::CalculateDigest</a></div><div class="ttdeci">virtual void CalculateDigest(byte *digest, const byte *input, size_t length)</div><div class="ttdoc">Updates the hash with additional input and computes the hash of the current message. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l01139">cryptlib.h:1139</a></div></div>
<div class="ttc" id="cryptlib_8h_html_a04be65ada92ccb1e6aac0d94b4cc394b"><div class="ttname"><a href="cryptlib_8h.html#a04be65ada92ccb1e6aac0d94b4cc394b">g_nullNameValuePairs</a></div><div class="ttdeci">const NameValuePairs g_nullNameValuePairs</div><div class="ttdoc">An empty set of name-value pairs. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00494">cryptlib.h:494</a></div></div>
<div class="ttc" id="class_p_k_c_s5___p_b_k_d_f1_html_a7a12ab74625092343b438cf38c63928c"><div class="ttname"><a href="class_p_k_c_s5___p_b_k_d_f1.html#a7a12ab74625092343b438cf38c63928c">PKCS5_PBKDF1::AlgorithmName</a></div><div class="ttdeci">std::string AlgorithmName() const</div><div class="ttdoc">Provides the name of this algorithm. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00036">pwdbased.h:36</a></div></div>
<div class="ttc" id="class_h_m_a_c_html"><div class="ttname"><a href="class_h_m_a_c.html">HMAC</a></div><div class="ttdoc">HMAC. </div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00050">hmac.h:50</a></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="struct_password_based_key_derivation_function_html"><div class="ttname"><a href="struct_password_based_key_derivation_function.html">PasswordBasedKeyDerivationFunction</a></div><div class="ttdoc">Interface for password based key derivation functions. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l01480">cryptlib.h:1480</a></div></div>
<div class="ttc" id="integer_8h_html"><div class="ttname"><a href="integer_8h.html">integer.h</a></div><div class="ttdoc">Multiple precision integer with arithmetic operations. </div></div>
<div class="ttc" id="misc_8h_html_a57a219d44f45272a1f3b3f17a656000a"><div class="ttname"><a href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a></div><div class="ttdeci">T1 RoundUpToMultipleOf(const T1 &n, const T2 &m)</div><div class="ttdoc">Rounds a value up to a multiple of a second value. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00971">misc.h:971</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_name_value_pairs_html_a5357c3a09602e44671d1e42cb9a9408d"><div class="ttname"><a href="class_name_value_pairs.html#a5357c3a09602e44671d1e42cb9a9408d">NameValuePairs::GetValue</a></div><div class="ttdeci">bool GetValue(const char *name, T &value) const</div><div class="ttdoc">Get a named value. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00347">cryptlib.h:347</a></div></div>
<div class="ttc" id="class_thread_user_timer_html"><div class="ttname"><a href="class_thread_user_timer.html">ThreadUserTimer</a></div><div class="ttdoc">Measure CPU time spent executing instructions of this thread (if supported by OS) ...</div><div class="ttdef"><b>Definition:</b> <a href="hrtimer_8h_source.html#l00046">hrtimer.h:46</a></div></div>
<div class="ttc" id="class_hash_transformation_html_aa0b8c7a110d8968268fd02ec32b9a8e8"><div class="ttname"><a href="class_hash_transformation.html#aa0b8c7a110d8968268fd02ec32b9a8e8">HashTransformation::Final</a></div><div class="ttdeci">virtual void Final(byte *digest)</div><div class="ttdoc">Computes the hash of the current message. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l01095">cryptlib.h:1095</a></div></div>
<div class="ttc" id="class_p_k_c_s5___p_b_k_d_f1_html_a0a68829c5fa0558aa6f2484492923e66"><div class="ttname"><a href="class_p_k_c_s5___p_b_k_d_f1.html#a0a68829c5fa0558aa6f2484492923e66">PKCS5_PBKDF1::DeriveKey</a></div><div class="ttdeci">virtual size_t DeriveKey(byte *derived, size_t derivedLen, const byte *secret, size_t secretLen, const NameValuePairs &params=g_nullNameValuePairs) const</div><div class="ttdoc">Derive a key from a seed. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00090">pwdbased.h:90</a></div></div>
<div class="ttc" id="class_p_k_c_s12___p_b_k_d_f_html_a964aa86a640bea9809b15d8b7f33e026"><div class="ttname"><a href="class_p_k_c_s12___p_b_k_d_f.html#a964aa86a640bea9809b15d8b7f33e026">PKCS12_PBKDF::GetValidDerivedLength</a></div><div class="ttdeci">size_t GetValidDerivedLength(size_t keylength) const</div><div class="ttdoc">Returns a valid key length for the derivation function. </div><div class="ttdef"><b>Definition:</b> <a href="pwdbased_8h_source.html#l00359">pwdbased.h:359</a></div></div>
<div class="ttc" id="class_sec_block_html_af5999bffe3193e62719cc0792b0282a7"><div class="ttname"><a href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">SecBlock::size</a></div><div class="ttdeci">size_type size() const</div><div class="ttdoc">Provides the count of elements in the SecBlock. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00561">secblock.h:561</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 07:58:00 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
>
2511
