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<div id="projectname">Crypto++
 <span id="projectnumber">7.0</span>
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<div id="projectbrief">Free C++ class library of cryptographic schemes</div>
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<div class="title">esign.cpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// esign.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> <span class="preprocessor">#include "<a class="code" href="config_8h.html">config.h</a>"</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> </div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// TODO: fix the C4589 warnings</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#if CRYPTOPP_MSC_VERSION</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor"># pragma warning(disable: 4589)</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#endif</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="esign_8h.html">esign.h</a>"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "<a class="code" href="modarith_8h.html">modarith.h</a>"</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="nbtheory_8h.html">nbtheory.h</a>"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "<a class="code" href="algparam_8h.html">algparam.h</a>"</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "<a class="code" href="sha_8h.html">sha.h</a>"</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "<a class="code" href="asn_8h.html">asn.h</a>"</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</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="preprocessor">#if defined(CRYPTOPP_DEBUG) && !defined(CRYPTOPP_DOXYGEN_PROCESSING)</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keywordtype">void</span> ESIGN_TestInstantiations()</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> {</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <a class="code" href="class_p_k___final_template.html">ESIGN<SHA1>::Verifier</a> x1(1, 1);</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <a class="code" href="class_p_k___final_template.html">ESIGN<SHA1>::Signer</a> x2(<a class="code" href="cryptlib_8h.html#a1e53479a6d427158247ac1ece3161a6d">NullRNG</a>(), 1);</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <a class="code" href="class_p_k___final_template.html">ESIGN<SHA1>::Verifier</a> x3(x2);</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <a class="code" href="class_p_k___final_template.html">ESIGN<SHA1>::Verifier</a> x4(x2.GetKey());</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <a class="code" href="class_p_k___final_template.html">ESIGN<SHA1>::Verifier</a> x5(x3);</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <a class="code" href="class_p_k___final_template.html">ESIGN<SHA1>::Signer</a> x6 = x2;</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  x6 = x2;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  x3 = <a class="code" href="class_t_f___s_s.html#aa62290f4d5dfcdaa5ab3bb790a96966c">ESIGN<SHA1>::Verifier</a>(x2);</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  x4 = x2.GetKey();</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="preprocessor">#endif</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="class_e_s_i_g_n_function.html#a6517cb00d59eb584c9ecf86d3dce6742"> 37</a></span> <span class="keywordtype">void</span> <a class="code" href="class_e_s_i_g_n_function.html#a6517cb00d59eb584c9ecf86d3dce6742">ESIGNFunction::BERDecode</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &bt)</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>  <a class="code" href="class_b_e_r_sequence_decoder.html">BERSequenceDecoder</a> seq(bt);</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  m_n.<a class="code" href="class_integer.html#a810fc0382f8928893fe192ab79b1972c">BERDecode</a>(seq);</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  m_e.<a class="code" href="class_integer.html#a810fc0382f8928893fe192ab79b1972c">BERDecode</a>(seq);</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  seq.MessageEnd();</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"><a class="line" href="class_e_s_i_g_n_function.html#a2b93474e204437265a68c8c8a1c910c9"> 45</a></span> <span class="keywordtype">void</span> <a class="code" href="class_e_s_i_g_n_function.html#a2b93474e204437265a68c8c8a1c910c9">ESIGNFunction::DEREncode</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &bt)<span class="keyword"> const</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword"></span>{</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="class_d_e_r_sequence_encoder.html">DERSequenceEncoder</a> seq(bt);</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  m_n.<a class="code" href="class_integer.html#a0671bd1dbe49e2eecdaaa65ffcb5b6ec">DEREncode</a>(seq);</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  m_e.<a class="code" href="class_integer.html#a0671bd1dbe49e2eecdaaa65ffcb5b6ec">DEREncode</a>(seq);</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  seq.MessageEnd();</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> }</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="class_e_s_i_g_n_function.html#ad7d9112f0e94caa37e815fb8d50e391a"> 53</a></span> <a class="code" href="class_integer.html">Integer</a> <a class="code" href="class_e_s_i_g_n_function.html#ad7d9112f0e94caa37e815fb8d50e391a">ESIGNFunction::ApplyFunction</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &x)<span class="keyword"> const</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keyword"></span>{</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="class_crypto_material.html#aa1da44802c5cf00946043922cb9e7e6e">DoQuickSanityCheck</a>();</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">return</span> <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(a_exp_b_mod_c(x, m_e, m_n) >> (2*GetK()+2), <a class="code" href="class_trapdoor_function_bounds.html#a9b505cf1a3494645998e7e0872b76a72">MaxImage</a>());</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> }</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div><div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="class_e_s_i_g_n_function.html#acc185d24c97a74543a6e5820219282bd"> 59</a></span> <span class="keywordtype">bool</span> <a class="code" href="class_e_s_i_g_n_function.html#acc185d24c97a74543a6e5820219282bd">ESIGNFunction::Validate</a>(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a>& rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> level)<span class="keyword"> const</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword"></span>{</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  CRYPTOPP_UNUSED(rng), CRYPTOPP_UNUSED(level);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">bool</span> pass = <span class="keyword">true</span>;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  pass = pass && m_n > <a class="code" href="class_integer.html#a8c070592581bf6c2f928c72bfa1c1638">Integer::One</a>() && m_n.<a class="code" href="class_integer.html#aed4bb7208a18b986ef3e1a7d92e06d1d">IsOdd</a>();</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(pass);</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  pass = pass && m_e >= 8 && m_e < m_n;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(pass);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> pass;</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> </div><div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="class_e_s_i_g_n_function.html#ae710b91b8682ad26bc9ff35b015ccc52"> 70</a></span> <span class="keywordtype">bool</span> <a class="code" href="class_e_s_i_g_n_function.html#ae710b91b8682ad26bc9ff35b015ccc52">ESIGNFunction::GetVoidValue</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> std::type_info &valueType, <span class="keywordtype">void</span> *pValue)<span class="keyword"> const</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="keyword"></span>{</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> GetValueHelper(<span class="keyword">this</span>, name, valueType, pValue).Assignable()</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  CRYPTOPP_GET_FUNCTION_ENTRY(<a class="code" href="namespace_name.html#a7e07afb1cbb505fa8cf1b93e67f4782d">Modulus</a>)</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  CRYPTOPP_GET_FUNCTION_ENTRY(<a class="code" href="namespace_name.html#acc52915312dfc2b01ec47df5066cf1ad">PublicExponent</a>)</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> }</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="class_e_s_i_g_n_function.html#a1ff8229ed7786a13a69d15e5a64e4d21"> 78</a></span> <span class="keywordtype">void</span> <a class="code" href="class_e_s_i_g_n_function.html#a1ff8229ed7786a13a69d15e5a64e4d21">ESIGNFunction::AssignFrom</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &source)</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>  AssignFromHelper(<span class="keyword">this</span>, source)</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  CRYPTOPP_SET_FUNCTION_ENTRY(<a class="code" href="namespace_name.html#a7e07afb1cbb505fa8cf1b93e67f4782d">Modulus</a>)</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  CRYPTOPP_SET_FUNCTION_ENTRY(<a class="code" href="namespace_name.html#acc52915312dfc2b01ec47df5066cf1ad">PublicExponent</a>)</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  ;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> }</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> <span class="comment">// *****************************************************************************</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="class_invertible_e_s_i_g_n_function.html#a241b733193f9f420f188ca6f57d49c27"> 88</a></span> <span class="keywordtype">void</span> <a class="code" href="class_invertible_e_s_i_g_n_function.html#a241b733193f9f420f188ca6f57d49c27">InvertibleESIGNFunction::GenerateRandom</a>(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &param)</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordtype">int</span> modulusSize = 1023*2;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  param.<a class="code" href="class_name_value_pairs.html#a94e5b19dc54625799797668ff8627c57">GetIntValue</a>(<span class="stringliteral">"ModulusSize"</span>, modulusSize) || param.<a class="code" href="class_name_value_pairs.html#a94e5b19dc54625799797668ff8627c57">GetIntValue</a>(<span class="stringliteral">"KeySize"</span>, modulusSize);</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span> (modulusSize < 24)</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">throw</span> <a class="code" href="class_invalid_argument.html">InvalidArgument</a>(<span class="stringliteral">"InvertibleESIGNFunction: specified modulus size is too small"</span>);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">if</span> (modulusSize % 3 != 0)</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">throw</span> <a class="code" href="class_invalid_argument.html">InvalidArgument</a>(<span class="stringliteral">"InvertibleESIGNFunction: modulus size must be divisible by 3"</span>);</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>  m_e = param.<a class="code" href="class_name_value_pairs.html#a4daf1ef67b547c6be96188a43e5ec05e">GetValueWithDefault</a>(<span class="stringliteral">"PublicExponent"</span>, <a class="code" href="class_integer.html">Integer</a>(32));</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">if</span> (m_e < 8)</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">throw</span> <a class="code" href="class_invalid_argument.html">InvalidArgument</a>(<span class="stringliteral">"InvertibleESIGNFunction: public exponents less than 8 may not be secure"</span>);</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>  <span class="comment">// VC70 workaround: putting these after primeParam causes overlapped stack allocation</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a> seedParam;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> seed;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> minP = <a class="code" href="class_integer.html">Integer</a>(204) << (modulusSize/3-8);</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> maxP = <a class="code" href="class_integer.html#ade53248f5dbb520273a70856b975417c">Integer::Power2</a>(modulusSize/3)-1;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="class_algorithm_parameters.html">AlgorithmParameters</a> primeParam = <a class="code" href="algparam_8h.html#aa13eee74de98cf8aaa7e83f4fae7f28b">MakeParameters</a>(<span class="stringliteral">"Min"</span>, minP)(<span class="stringliteral">"Max"</span>, maxP)(<span class="stringliteral">"RandomNumberType"</span>, <a class="code" href="class_integer.html#a9b4088ac01abf76b9ba60060abccb7a3afe686f55e5b6768b20009a12522bd0d9">Integer::PRIME</a>);</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">if</span> (param.<a class="code" href="class_name_value_pairs.html#a5357c3a09602e44671d1e42cb9a9408d">GetValue</a>(<span class="stringliteral">"Seed"</span>, seedParam))</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  {</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  seed.<a class="code" href="class_sec_block.html#af9e98d3f4a7af1156fcf3e6e68f4ae5a">resize</a>(seedParam.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>() + 4);</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  memcpy(seed + 4, seedParam.<a class="code" href="class_const_byte_array_parameter.html#ab89acc8dae383f2663dd3864651e8ef1">begin</a>(), seedParam.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>());</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>  <a class="code" href="misc_8h.html#aef6a8d35198f71ff68811bacd599c664">PutWord</a>(<span class="keyword">false</span>, <a class="code" href="cryptlib_8h.html#aaeb92d42f5a6e27b8ba19f18d69d142baf0c3bb6c718cc7ff0bffef4e8f178c57">BIG_ENDIAN_ORDER</a>, seed, (word32)0);</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  m_p.<a class="code" href="class_integer.html#a0d9a427fe64a454b11b24fe61c10dbeb">GenerateRandom</a>(rng, <a class="code" href="class_combined_name_value_pairs.html">CombinedNameValuePairs</a>(primeParam, <a class="code" href="algparam_8h.html#aa13eee74de98cf8aaa7e83f4fae7f28b">MakeParameters</a>(<span class="stringliteral">"Seed"</span>, <a class="code" href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a>(seed))));</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <a class="code" href="misc_8h.html#aef6a8d35198f71ff68811bacd599c664">PutWord</a>(<span class="keyword">false</span>, <a class="code" href="cryptlib_8h.html#aaeb92d42f5a6e27b8ba19f18d69d142baf0c3bb6c718cc7ff0bffef4e8f178c57">BIG_ENDIAN_ORDER</a>, seed, (word32)1);</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  m_q.<a class="code" href="class_integer.html#a0d9a427fe64a454b11b24fe61c10dbeb">GenerateRandom</a>(rng, <a class="code" href="class_combined_name_value_pairs.html">CombinedNameValuePairs</a>(primeParam, <a class="code" href="algparam_8h.html#aa13eee74de98cf8aaa7e83f4fae7f28b">MakeParameters</a>(<span class="stringliteral">"Seed"</span>, <a class="code" href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a>(seed))));</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="keywordflow">else</span></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>  m_p.<a class="code" href="class_integer.html#a0d9a427fe64a454b11b24fe61c10dbeb">GenerateRandom</a>(rng, primeParam);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  m_q.<a class="code" href="class_integer.html#a0d9a427fe64a454b11b24fe61c10dbeb">GenerateRandom</a>(rng, primeParam);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  m_n = m_p * m_p * m_q;</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>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_n.BitCount() == (<span class="keywordtype">unsigned</span> int)modulusSize);</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> }</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div><div class="line"><a name="l00133"></a><span class="lineno"><a class="line" href="class_invertible_e_s_i_g_n_function.html#a7e63d8fe66a25af6611f37bdaac982c4"> 133</a></span> <span class="keywordtype">void</span> <a class="code" href="class_invertible_e_s_i_g_n_function.html#a7e63d8fe66a25af6611f37bdaac982c4">InvertibleESIGNFunction::BERDecode</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &bt)</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> {</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <a class="code" href="class_b_e_r_sequence_decoder.html">BERSequenceDecoder</a> privateKey(bt);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  m_n.BERDecode(privateKey);</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  m_e.BERDecode(privateKey);</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  m_p.<a class="code" href="class_integer.html#a810fc0382f8928893fe192ab79b1972c">BERDecode</a>(privateKey);</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  m_q.<a class="code" href="class_integer.html#a810fc0382f8928893fe192ab79b1972c">BERDecode</a>(privateKey);</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  privateKey.MessageEnd();</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"><a class="line" href="class_invertible_e_s_i_g_n_function.html#a67cceb3b4d3d40b01d89c2053b8b258f"> 143</a></span> <span class="keywordtype">void</span> <a class="code" href="class_invertible_e_s_i_g_n_function.html#a67cceb3b4d3d40b01d89c2053b8b258f">InvertibleESIGNFunction::DEREncode</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &bt)<span class="keyword"> const</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="keyword"></span>{</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <a class="code" href="class_d_e_r_sequence_encoder.html">DERSequenceEncoder</a> privateKey(bt);</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  m_n.DEREncode(privateKey);</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  m_e.DEREncode(privateKey);</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  m_p.<a class="code" href="class_integer.html#a0671bd1dbe49e2eecdaaa65ffcb5b6ec">DEREncode</a>(privateKey);</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  m_q.<a class="code" href="class_integer.html#a0671bd1dbe49e2eecdaaa65ffcb5b6ec">DEREncode</a>(privateKey);</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  privateKey.MessageEnd();</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> }</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div><div class="line"><a name="l00153"></a><span class="lineno"><a class="line" href="class_invertible_e_s_i_g_n_function.html#a0eed8ac3efb7868aa7ae0a09ee785610"> 153</a></span> <a class="code" href="class_integer.html">Integer</a> <a class="code" href="class_invertible_e_s_i_g_n_function.html#a0eed8ac3efb7868aa7ae0a09ee785610">InvertibleESIGNFunction::CalculateRandomizedInverse</a>(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &x)<span class="keyword"> const</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="keyword"></span>{</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <a class="code" href="class_crypto_material.html#aa1da44802c5cf00946043922cb9e7e6e">DoQuickSanityCheck</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>  <a class="code" href="class_integer.html">Integer</a> pq = m_p * m_q;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <a class="code" href="class_integer.html">Integer</a> p2 = m_p * m_p;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <a class="code" href="class_integer.html">Integer</a> r, z, re, a, w0, w1;</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>  <span class="keywordflow">do</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>  r.<a class="code" href="class_integer.html#a62a8829c926b4e421183e76ea4233702">Randomize</a>(rng, <a class="code" href="class_integer.html#a19b7e6d48b1b57bd4846160ea2928175">Integer::Zero</a>(), pq);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  z = x << (2*GetK()+2);</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  re = a_exp_b_mod_c(r, m_e, m_n);</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  a = (z - re) % m_n;</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <a class="code" href="class_integer.html#a567c89aa176b354143c99d558d05a5fb">Integer::Divide</a>(w1, w0, a, pq);</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">if</span> (w1.<a class="code" href="class_integer.html#a5364029d13bf6d21e7b578127160dbed">NotZero</a>())</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>  ++w0;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  w1 = pq - w1;</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>  }</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">while</span> ((w1 >> (2*GetK()+1)).IsPositive());</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <a class="code" href="class_modular_arithmetic.html">ModularArithmetic</a> modp(m_p);</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <a class="code" href="class_integer.html">Integer</a> t = modp.<a class="code" href="class_modular_arithmetic.html#a584d214676856d1463e14c6407d1cd31">Divide</a>(w0 * r % m_p, m_e * re % m_p);</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <a class="code" href="class_integer.html">Integer</a> s = r + t*pq;</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(s < m_n);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="preprocessor">#if 0</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  cout << <span class="stringliteral">"f = "</span> << x << endl;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  cout << <span class="stringliteral">"r = "</span> << r << endl;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  cout << <span class="stringliteral">"z = "</span> << z << endl;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  cout << <span class="stringliteral">"a = "</span> << a << endl;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  cout << <span class="stringliteral">"w0 = "</span> << w0 << endl;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  cout << <span class="stringliteral">"w1 = "</span> << w1 << endl;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  cout << <span class="stringliteral">"t = "</span> << t << endl;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  cout << <span class="stringliteral">"s = "</span> << s << endl;</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">return</span> s;</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> </div><div class="line"><a name="l00194"></a><span class="lineno"><a class="line" href="class_invertible_e_s_i_g_n_function.html#a1c64c8101a488232cde43a5c473742b1"> 194</a></span> <span class="keywordtype">bool</span> <a class="code" href="class_invertible_e_s_i_g_n_function.html#a1c64c8101a488232cde43a5c473742b1">InvertibleESIGNFunction::Validate</a>(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> level)<span class="keyword"> const</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="keyword"></span>{</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordtype">bool</span> pass = <a class="code" href="class_e_s_i_g_n_function.html#acc185d24c97a74543a6e5820219282bd">ESIGNFunction::Validate</a>(rng, level);</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(pass);</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  pass = pass && m_p > <a class="code" href="class_integer.html#a8c070592581bf6c2f928c72bfa1c1638">Integer::One</a>() && m_p.<a class="code" href="class_integer.html#aed4bb7208a18b986ef3e1a7d92e06d1d">IsOdd</a>() && m_p < m_n;</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(pass);</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  pass = pass && m_q > <a class="code" href="class_integer.html#a8c070592581bf6c2f928c72bfa1c1638">Integer::One</a>() && m_q.<a class="code" href="class_integer.html#aed4bb7208a18b986ef3e1a7d92e06d1d">IsOdd</a>() && m_q < m_n;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(pass);</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  pass = pass && m_p.<a class="code" href="class_integer.html#a867356d88074424328d0ebb9bea63254">BitCount</a>() == m_q.<a class="code" href="class_integer.html#a867356d88074424328d0ebb9bea63254">BitCount</a>();</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(pass);</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">if</span> (level >= 1)</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  {</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  pass = pass && m_p * m_p * m_q == m_n;</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(pass);</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">if</span> (level >= 2)</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  {</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  pass = pass && <a class="code" href="nbtheory_8h.html#a633d17045e229eccc3614426df054463">VerifyPrime</a>(rng, m_p, level-2) && <a class="code" href="nbtheory_8h.html#a633d17045e229eccc3614426df054463">VerifyPrime</a>(rng, m_q, level-2);</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(pass);</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">return</span> pass;</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> }</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div><div class="line"><a name="l00217"></a><span class="lineno"><a class="line" href="class_invertible_e_s_i_g_n_function.html#a870d6ba6500b250ec400fdbb7ad47e08"> 217</a></span> <span class="keywordtype">bool</span> <a class="code" href="class_invertible_e_s_i_g_n_function.html#a870d6ba6500b250ec400fdbb7ad47e08">InvertibleESIGNFunction::GetVoidValue</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> std::type_info &valueType, <span class="keywordtype">void</span> *pValue)<span class="keyword"> const</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="keyword"></span>{</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">return</span> GetValueHelper<ESIGNFunction>(<span class="keyword">this</span>, name, valueType, pValue).Assignable()</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  CRYPTOPP_GET_FUNCTION_ENTRY(<a class="code" href="namespace_name.html#a6cdb26682afe9bb0e1f245a052924d52">Prime1</a>)</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  CRYPTOPP_GET_FUNCTION_ENTRY(<a class="code" href="namespace_name.html#afbc931235175c1df9b9826a0d88999d8">Prime2</a>)</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"> 224</span> </div><div class="line"><a name="l00225"></a><span class="lineno"><a class="line" href="class_invertible_e_s_i_g_n_function.html#aca870e350b30d04a47d452f21e903278"> 225</a></span> <span class="keywordtype">void</span> <a class="code" href="class_invertible_e_s_i_g_n_function.html#aca870e350b30d04a47d452f21e903278">InvertibleESIGNFunction::AssignFrom</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &source)</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>  AssignFromHelper<ESIGNFunction>(<span class="keyword">this</span>, source)</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  CRYPTOPP_SET_FUNCTION_ENTRY(<a class="code" href="namespace_name.html#a6cdb26682afe9bb0e1f245a052924d52">Prime1</a>)</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  CRYPTOPP_SET_FUNCTION_ENTRY(<a class="code" href="namespace_name.html#afbc931235175c1df9b9826a0d88999d8">Prime2</a>)</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  ;</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> }</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> NAMESPACE_END</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_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_integer_html_a5364029d13bf6d21e7b578127160dbed"><div class="ttname"><a href="class_integer.html#a5364029d13bf6d21e7b578127160dbed">Integer::NotZero</a></div><div class="ttdeci">bool NotZero() const</div><div class="ttdoc">Determines if the Integer is non-0. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00333">integer.h:333</a></div></div>
<div class="ttc" id="algparam_8h_html"><div class="ttname"><a href="algparam_8h.html">algparam.h</a></div><div class="ttdoc">Classes for working with NameValuePairs. </div></div>
<div class="ttc" id="class_modular_arithmetic_html_a584d214676856d1463e14c6407d1cd31"><div class="ttname"><a href="class_modular_arithmetic.html#a584d214676856d1463e14c6407d1cd31">ModularArithmetic::Divide</a></div><div class="ttdeci">const Integer & Divide(const Integer &a, const Integer &b) const</div><div class="ttdoc">Divides elements in the ring. </div><div class="ttdef"><b>Definition:</b> <a href="modarith_8h_source.html#l00202">modarith.h:202</a></div></div>
<div class="ttc" id="class_integer_html_a9b4088ac01abf76b9ba60060abccb7a3afe686f55e5b6768b20009a12522bd0d9"><div class="ttname"><a href="class_integer.html#a9b4088ac01abf76b9ba60060abccb7a3afe686f55e5b6768b20009a12522bd0d9">Integer::PRIME</a></div><div class="ttdoc">a number which is probabilistically prime </div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00095">integer.h:95</a></div></div>
<div class="ttc" id="namespace_name_html_afbc931235175c1df9b9826a0d88999d8"><div class="ttname"><a href="namespace_name.html#afbc931235175c1df9b9826a0d88999d8">Name::Prime2</a></div><div class="ttdeci">const char * Prime2()</div><div class="ttdoc">Integer. </div><div class="ttdef"><b>Definition:</b> <a href="argnames_8h_source.html#l00044">argnames.h:44</a></div></div>
<div class="ttc" id="class_name_value_pairs_html_a4daf1ef67b547c6be96188a43e5ec05e"><div class="ttname"><a href="class_name_value_pairs.html#a4daf1ef67b547c6be96188a43e5ec05e">NameValuePairs::GetValueWithDefault</a></div><div class="ttdeci">T GetValueWithDefault(const char *name, T defaultValue) const</div><div class="ttdoc">Get a named value. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00360">cryptlib.h:360</a></div></div>
<div class="ttc" id="class_integer_html_a0671bd1dbe49e2eecdaaa65ffcb5b6ec"><div class="ttname"><a href="class_integer.html#a0671bd1dbe49e2eecdaaa65ffcb5b6ec">Integer::DEREncode</a></div><div class="ttdeci">void DEREncode(BufferedTransformation &bt) const</div><div class="ttdoc">Encode in DER format. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l03405">integer.cpp:3405</a></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_t_f___s_s_html_aa62290f4d5dfcdaa5ab3bb790a96966c"><div class="ttname"><a href="class_t_f___s_s.html#aa62290f4d5dfcdaa5ab3bb790a96966c">TF_SS< ESIGN_Keys, STANDARD, H >::Verifier</a></div><div class="ttdeci">PK_FinalTemplate< TF_VerifierImpl< SchemeOptions > > Verifier</div><div class="ttdoc">implements PK_Verifier interface </div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l02265">pubkey.h:2265</a></div></div>
<div class="ttc" id="class_invertible_e_s_i_g_n_function_html_a67cceb3b4d3d40b01d89c2053b8b258f"><div class="ttname"><a href="class_invertible_e_s_i_g_n_function.html#a67cceb3b4d3d40b01d89c2053b8b258f">InvertibleESIGNFunction::DEREncode</a></div><div class="ttdeci">void DEREncode(BufferedTransformation &bt) const</div><div class="ttdoc">Encode this object into a BufferedTransformation. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00143">esign.cpp:143</a></div></div>
<div class="ttc" id="class_sec_block_html_af9e98d3f4a7af1156fcf3e6e68f4ae5a"><div class="ttname"><a href="class_sec_block.html#af9e98d3f4a7af1156fcf3e6e68f4ae5a">SecBlock::resize</a></div><div class="ttdeci">void resize(size_type newSize)</div><div class="ttdoc">Change size and preserve contents. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00795">secblock.h:795</a></div></div>
<div class="ttc" id="misc_8h_html_aef6a8d35198f71ff68811bacd599c664"><div class="ttname"><a href="misc_8h.html#aef6a8d35198f71ff68811bacd599c664">PutWord</a></div><div class="ttdeci">void PutWord(bool assumeAligned, ByteOrder order, byte *block, T value, const byte *xorBlock=NULL)</div><div class="ttdoc">Access a block of memory. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l02295">misc.h:2295</a></div></div>
<div class="ttc" id="class_invertible_e_s_i_g_n_function_html_a0eed8ac3efb7868aa7ae0a09ee785610"><div class="ttname"><a href="class_invertible_e_s_i_g_n_function.html#a0eed8ac3efb7868aa7ae0a09ee785610">InvertibleESIGNFunction::CalculateRandomizedInverse</a></div><div class="ttdeci">Integer CalculateRandomizedInverse(RandomNumberGenerator &rng, const Integer &x) const</div><div class="ttdoc">Applies the inverse of the trapdoor function, using random data if required. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00153">esign.cpp:153</a></div></div>
<div class="ttc" id="config_8h_html"><div class="ttname"><a href="config_8h.html">config.h</a></div><div class="ttdoc">Library configuration file. </div></div>
<div class="ttc" id="class_modular_arithmetic_html"><div class="ttname"><a href="class_modular_arithmetic.html">ModularArithmetic</a></div><div class="ttdoc">Ring of congruence classes modulo n. </div><div class="ttdef"><b>Definition:</b> <a href="modarith_8h_source.html#l00038">modarith.h:38</a></div></div>
<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdoc">STL namespace. </div></div>
<div class="ttc" id="class_random_number_generator_html"><div class="ttname"><a href="class_random_number_generator.html">RandomNumberGenerator</a></div><div class="ttdoc">Interface for random number generators. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l01330">cryptlib.h:1330</a></div></div>
<div class="ttc" id="class_integer_html_a62a8829c926b4e421183e76ea4233702"><div class="ttname"><a href="class_integer.html#a62a8829c926b4e421183e76ea4233702">Integer::Randomize</a></div><div class="ttdeci">void Randomize(RandomNumberGenerator &rng, size_t bitCount)</div><div class="ttdoc">Set this Integer to random integer. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l03476">integer.cpp:3476</a></div></div>
<div class="ttc" id="class_combined_name_value_pairs_html"><div class="ttname"><a href="class_combined_name_value_pairs.html">CombinedNameValuePairs</a></div><div class="ttdoc">Combines two sets of NameValuePairs. </div><div class="ttdef"><b>Definition:</b> <a href="algparam_8h_source.html#l00124">algparam.h:124</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_b_e_r_sequence_decoder_html"><div class="ttname"><a href="class_b_e_r_sequence_decoder.html">BERSequenceDecoder</a></div><div class="ttdoc">BER Sequence Decoder. </div><div class="ttdef"><b>Definition:</b> <a href="asn_8h_source.html#l00305">asn.h:305</a></div></div>
<div class="ttc" id="class_integer_html_a0d9a427fe64a454b11b24fe61c10dbeb"><div class="ttname"><a href="class_integer.html#a0d9a427fe64a454b11b24fe61c10dbeb">Integer::GenerateRandom</a></div><div class="ttdeci">void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &params=g_nullNameValuePairs)</div><div class="ttdoc">Generate a random number. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00484">integer.h:484</a></div></div>
<div class="ttc" id="class_buffered_transformation_html"><div class="ttname"><a href="class_buffered_transformation.html">BufferedTransformation</a></div><div class="ttdoc">Interface for buffered transformations. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l01545">cryptlib.h:1545</a></div></div>
<div class="ttc" id="class_integer_html_a8c070592581bf6c2f928c72bfa1c1638"><div class="ttname"><a href="class_integer.html#a8c070592581bf6c2f928c72bfa1c1638">Integer::One</a></div><div class="ttdeci">static const Integer & One()</div><div class="ttdoc">Integer representing 1. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l04824">integer.cpp:4824</a></div></div>
<div class="ttc" id="esign_8h_html"><div class="ttname"><a href="esign_8h.html">esign.h</a></div><div class="ttdoc">Classes providing ESIGN signature schemes as defined in IEEE P1363a. </div></div>
<div class="ttc" id="class_e_s_i_g_n_function_html_acc185d24c97a74543a6e5820219282bd"><div class="ttname"><a href="class_e_s_i_g_n_function.html#acc185d24c97a74543a6e5820219282bd">ESIGNFunction::Validate</a></div><div class="ttdeci">bool Validate(RandomNumberGenerator &rng, unsigned int level) const</div><div class="ttdoc">Check this object for errors. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00059">esign.cpp:59</a></div></div>
<div class="ttc" id="namespace_name_html_a6cdb26682afe9bb0e1f245a052924d52"><div class="ttname"><a href="namespace_name.html#a6cdb26682afe9bb0e1f245a052924d52">Name::Prime1</a></div><div class="ttdeci">const char * Prime1()</div><div class="ttdoc">Integer. </div><div class="ttdef"><b>Definition:</b> <a href="argnames_8h_source.html#l00043">argnames.h:43</a></div></div>
<div class="ttc" id="class_crypto_material_html_aa1da44802c5cf00946043922cb9e7e6e"><div class="ttname"><a href="class_crypto_material.html#aa1da44802c5cf00946043922cb9e7e6e">CryptoMaterial::DoQuickSanityCheck</a></div><div class="ttdeci">void DoQuickSanityCheck() const</div><div class="ttdoc">Perform a quick sanity check. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l02334">cryptlib.h:2334</a></div></div>
<div class="ttc" id="class_invertible_e_s_i_g_n_function_html_a7e63d8fe66a25af6611f37bdaac982c4"><div class="ttname"><a href="class_invertible_e_s_i_g_n_function.html#a7e63d8fe66a25af6611f37bdaac982c4">InvertibleESIGNFunction::BERDecode</a></div><div class="ttdeci">void BERDecode(BufferedTransformation &bt)</div><div class="ttdoc">Decode this object from a BufferedTransformation. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00133">esign.cpp:133</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="algparam_8h_html_aa13eee74de98cf8aaa7e83f4fae7f28b"><div class="ttname"><a href="algparam_8h.html#aa13eee74de98cf8aaa7e83f4fae7f28b">MakeParameters</a></div><div class="ttdeci">AlgorithmParameters MakeParameters(const char *name, const T &value, bool throwIfNotUsed=true)</div><div class="ttdoc">Create an object that implements NameValuePairs. </div><div class="ttdef"><b>Definition:</b> <a href="algparam_8h_source.html#l00502">algparam.h:502</a></div></div>
<div class="ttc" id="namespace_name_html_acc52915312dfc2b01ec47df5066cf1ad"><div class="ttname"><a href="namespace_name.html#acc52915312dfc2b01ec47df5066cf1ad">Name::PublicExponent</a></div><div class="ttdeci">const char * PublicExponent()</div><div class="ttdoc">Integer. </div><div class="ttdef"><b>Definition:</b> <a href="argnames_8h_source.html#l00034">argnames.h:34</a></div></div>
<div class="ttc" id="nbtheory_8h_html_a633d17045e229eccc3614426df054463"><div class="ttname"><a href="nbtheory_8h.html#a633d17045e229eccc3614426df054463">VerifyPrime</a></div><div class="ttdeci">bool VerifyPrime(RandomNumberGenerator &rng, const Integer &p, unsigned int level=1)</div><div class="ttdoc">Verifies a number is probably prime. </div><div class="ttdef"><b>Definition:</b> <a href="nbtheory_8cpp_source.html#l00247">nbtheory.cpp:247</a></div></div>
<div class="ttc" id="class_e_s_i_g_n_function_html_ad7d9112f0e94caa37e815fb8d50e391a"><div class="ttname"><a href="class_e_s_i_g_n_function.html#ad7d9112f0e94caa37e815fb8d50e391a">ESIGNFunction::ApplyFunction</a></div><div class="ttdeci">Integer ApplyFunction(const Integer &x) const</div><div class="ttdoc">Applies the trapdoor. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00053">esign.cpp:53</a></div></div>
<div class="ttc" id="class_invertible_e_s_i_g_n_function_html_aca870e350b30d04a47d452f21e903278"><div class="ttname"><a href="class_invertible_e_s_i_g_n_function.html#aca870e350b30d04a47d452f21e903278">InvertibleESIGNFunction::AssignFrom</a></div><div class="ttdeci">void AssignFrom(const NameValuePairs &source)</div><div class="ttdoc">Assign values to this object. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00225">esign.cpp:225</a></div></div>
<div class="ttc" id="class_trapdoor_function_bounds_html_a9b505cf1a3494645998e7e0872b76a72"><div class="ttname"><a href="class_trapdoor_function_bounds.html#a9b505cf1a3494645998e7e0872b76a72">TrapdoorFunctionBounds::MaxImage</a></div><div class="ttdeci">virtual Integer MaxImage() const</div><div class="ttdoc">Returns the maximum size of a message after the trapdoor function is applied bound to a public key...</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l00092">pubkey.h:92</a></div></div>
<div class="ttc" id="class_integer_html_ade53248f5dbb520273a70856b975417c"><div class="ttname"><a href="class_integer.html#ade53248f5dbb520273a70856b975417c">Integer::Power2</a></div><div class="ttdeci">static Integer Power2(size_t e)</div><div class="ttdoc">Exponentiates to a power of 2. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l03055">integer.cpp:3055</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="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="class_e_s_i_g_n_function_html_a6517cb00d59eb584c9ecf86d3dce6742"><div class="ttname"><a href="class_e_s_i_g_n_function.html#a6517cb00d59eb584c9ecf86d3dce6742">ESIGNFunction::BERDecode</a></div><div class="ttdeci">void BERDecode(BufferedTransformation &bt)</div><div class="ttdoc">Decode this object from a BufferedTransformation. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00037">esign.cpp:37</a></div></div>
<div class="ttc" id="cryptlib_8h_html_aaeb92d42f5a6e27b8ba19f18d69d142baf0c3bb6c718cc7ff0bffef4e8f178c57"><div class="ttname"><a href="cryptlib_8h.html#aaeb92d42f5a6e27b8ba19f18d69d142baf0c3bb6c718cc7ff0bffef4e8f178c57">BIG_ENDIAN_ORDER</a></div><div class="ttdoc">byte order is big-endian </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00144">cryptlib.h:144</a></div></div>
<div class="ttc" id="cryptlib_8h_html_a1e53479a6d427158247ac1ece3161a6d"><div class="ttname"><a href="cryptlib_8h.html#a1e53479a6d427158247ac1ece3161a6d">NullRNG</a></div><div class="ttdeci">RandomNumberGenerator & NullRNG()</div><div class="ttdoc">Random Number Generator that does not produce random numbers. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8cpp_source.html#l00406">cryptlib.cpp:406</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_integer_html_a567c89aa176b354143c99d558d05a5fb"><div class="ttname"><a href="class_integer.html#a567c89aa176b354143c99d558d05a5fb">Integer::Divide</a></div><div class="ttdeci">static void Divide(Integer &r, Integer &q, const Integer &a, const Integer &d)</div><div class="ttdoc">Extended Division. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l04152">integer.cpp:4152</a></div></div>
<div class="ttc" id="class_e_s_i_g_n_function_html_a2b93474e204437265a68c8c8a1c910c9"><div class="ttname"><a href="class_e_s_i_g_n_function.html#a2b93474e204437265a68c8c8a1c910c9">ESIGNFunction::DEREncode</a></div><div class="ttdeci">void DEREncode(BufferedTransformation &bt) const</div><div class="ttdoc">Encode this object into a BufferedTransformation. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00045">esign.cpp:45</a></div></div>
<div class="ttc" id="asn_8h_html"><div class="ttname"><a href="asn_8h.html">asn.h</a></div><div class="ttdoc">Classes and functions for working with ANS.1 objects. </div></div>
<div class="ttc" id="sha_8h_html"><div class="ttname"><a href="sha_8h.html">sha.h</a></div><div class="ttdoc">Classes for SHA-1 and SHA-2 family of message digests. </div></div>
<div class="ttc" id="class_integer_html_a867356d88074424328d0ebb9bea63254"><div class="ttname"><a href="class_integer.html#a867356d88074424328d0ebb9bea63254">Integer::BitCount</a></div><div class="ttdeci">unsigned int BitCount() const</div><div class="ttdoc">Determines the number of bits required to represent the Integer. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l03319">integer.cpp:3319</a></div></div>
<div class="ttc" id="nbtheory_8h_html"><div class="ttname"><a href="nbtheory_8h.html">nbtheory.h</a></div><div class="ttdoc">Classes and functions for number theoretic operations. </div></div>
<div class="ttc" id="class_e_s_i_g_n_function_html_ae710b91b8682ad26bc9ff35b015ccc52"><div class="ttname"><a href="class_e_s_i_g_n_function.html#ae710b91b8682ad26bc9ff35b015ccc52">ESIGNFunction::GetVoidValue</a></div><div class="ttdeci">bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const</div><div class="ttdoc">Get a named value. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00070">esign.cpp:70</a></div></div>
<div class="ttc" id="class_d_e_r_sequence_encoder_html"><div class="ttname"><a href="class_d_e_r_sequence_encoder.html">DERSequenceEncoder</a></div><div class="ttdoc">DER Sequence Encoder. </div><div class="ttdef"><b>Definition:</b> <a href="asn_8h_source.html#l00315">asn.h:315</a></div></div>
<div class="ttc" id="class_algorithm_parameters_html"><div class="ttname"><a href="class_algorithm_parameters.html">AlgorithmParameters</a></div><div class="ttdoc">An object that implements NameValuePairs. </div><div class="ttdef"><b>Definition:</b> <a href="algparam_8h_source.html#l00419">algparam.h:419</a></div></div>
<div class="ttc" id="namespace_name_html_a7e07afb1cbb505fa8cf1b93e67f4782d"><div class="ttname"><a href="namespace_name.html#a7e07afb1cbb505fa8cf1b93e67f4782d">Name::Modulus</a></div><div class="ttdeci">const char * Modulus()</div><div class="ttdoc">Integer. </div><div class="ttdef"><b>Definition:</b> <a href="argnames_8h_source.html#l00033">argnames.h:33</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="class_integer_html_a19b7e6d48b1b57bd4846160ea2928175"><div class="ttname"><a href="class_integer.html#a19b7e6d48b1b57bd4846160ea2928175">Integer::Zero</a></div><div class="ttdeci">static const Integer & Zero()</div><div class="ttdoc">Integer representing 0. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l04812">integer.cpp:4812</a></div></div>
<div class="ttc" id="class_integer_html_a810fc0382f8928893fe192ab79b1972c"><div class="ttname"><a href="class_integer.html#a810fc0382f8928893fe192ab79b1972c">Integer::BERDecode</a></div><div class="ttdeci">void BERDecode(const byte *input, size_t inputLen)</div><div class="ttdoc">Decode from BER format. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l03412">integer.cpp:3412</a></div></div>
<div class="ttc" id="class_e_s_i_g_n_function_html_a1ff8229ed7786a13a69d15e5a64e4d21"><div class="ttname"><a href="class_e_s_i_g_n_function.html#a1ff8229ed7786a13a69d15e5a64e4d21">ESIGNFunction::AssignFrom</a></div><div class="ttdeci">void AssignFrom(const NameValuePairs &source)</div><div class="ttdoc">Assign values to this object. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00078">esign.cpp:78</a></div></div>
<div class="ttc" id="modarith_8h_html"><div class="ttname"><a href="modarith_8h.html">modarith.h</a></div><div class="ttdoc">Class file for performing modular arithmetic. </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_invertible_e_s_i_g_n_function_html_a870d6ba6500b250ec400fdbb7ad47e08"><div class="ttname"><a href="class_invertible_e_s_i_g_n_function.html#a870d6ba6500b250ec400fdbb7ad47e08">InvertibleESIGNFunction::GetVoidValue</a></div><div class="ttdeci">bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const</div><div class="ttdoc">Get a named value. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00217">esign.cpp:217</a></div></div>
<div class="ttc" id="class_invertible_e_s_i_g_n_function_html_a241b733193f9f420f188ca6f57d49c27"><div class="ttname"><a href="class_invertible_e_s_i_g_n_function.html#a241b733193f9f420f188ca6f57d49c27">InvertibleESIGNFunction::GenerateRandom</a></div><div class="ttdeci">void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)</div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00088">esign.cpp:88</a></div></div>
<div class="ttc" id="class_name_value_pairs_html_a94e5b19dc54625799797668ff8627c57"><div class="ttname"><a href="class_name_value_pairs.html#a94e5b19dc54625799797668ff8627c57">NameValuePairs::GetIntValue</a></div><div class="ttdeci">bool GetIntValue(const char *name, int &value) const</div><div class="ttdoc">Get a named value with type int. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00383">cryptlib.h:383</a></div></div>
<div class="ttc" id="class_integer_html_aed4bb7208a18b986ef3e1a7d92e06d1d"><div class="ttname"><a href="class_integer.html#aed4bb7208a18b986ef3e1a7d92e06d1d">Integer::IsOdd</a></div><div class="ttdeci">bool IsOdd() const</div><div class="ttdoc">Determines if the Integer is odd parity. </div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00351">integer.h:351</a></div></div>
<div class="ttc" id="class_invertible_e_s_i_g_n_function_html_a1c64c8101a488232cde43a5c473742b1"><div class="ttname"><a href="class_invertible_e_s_i_g_n_function.html#a1c64c8101a488232cde43a5c473742b1">InvertibleESIGNFunction::Validate</a></div><div class="ttdeci">bool Validate(RandomNumberGenerator &rng, unsigned int level) const</div><div class="ttdoc">Check this object for errors. </div><div class="ttdef"><b>Definition:</b> <a href="esign_8cpp_source.html#l00194">esign.cpp:194</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 class="ttc" id="class_p_k___final_template_html"><div class="ttname"><a href="class_p_k___final_template.html">PK_FinalTemplate</a></div><div class="ttdoc">Template implementing constructors for public key algorithm classes. </div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l02134">pubkey.h:2134</a></div></div>
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