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<a href="gfpcrypt_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">// gfpcrypt.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">// RFC6979 deterministic signatures added by Douglas Roark</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// ECGDSA added by Jeffrey Walton</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 gfpcrypt.h</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">/// \brief Classes and functions for schemes based on Discrete Logs (DL) over GF(p)</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_GFPCRYPT_H</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#define CRYPTOPP_GFPCRYPT_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="config_8h.html">config.h</a>"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#if CRYPTOPP_MSC_VERSION</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"># pragma warning(push)</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor"># pragma warning(disable: 4189 4231 4275)</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "<a class="code" href="cryptlib_8h.html">cryptlib.h</a>"</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "<a class="code" href="pubkey_8h.html">pubkey.h</a>"</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "<a class="code" href="integer_8h.html">integer.h</a>"</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "modexppc.h"</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "<a class="code" href="algparam_8h.html">algparam.h</a>"</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "<a class="code" href="smartptr_8h.html">smartptr.h</a>"</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "<a class="code" href="sha_8h.html">sha.h</a>"</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="asn_8h.html">asn.h</a>"</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="hmac_8h.html">hmac.h</a>"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="misc_8h.html">misc.h</a>"</span></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> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</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> CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<Integer></a>;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">/// \brief Integer-based GroupParameters specialization</span></div><div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based.html"> 34</a></span> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL CRYPTOPP_NO_VTABLE <a class="code" href="class_d_l___group_parameters___integer_based.html">DL_GroupParameters_IntegerBased</a> : <span class="keyword">public</span> <a class="code" href="class_a_s_n1_crypto_material.html">ASN1CryptoMaterial</a><DL_GroupParameters<Integer> ></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">typedef</span> <a class="code" href="class_d_l___group_parameters___integer_based.html">DL_GroupParameters_IntegerBased</a> <a class="code" href="class_d_l___group_parameters___integer_based.html">ThisClass</a>;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___group_parameters___integer_based.html">DL_GroupParameters_IntegerBased</a>() {}</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"></span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> /// \brief Initialize a group parameters over integers</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> /// \param params the group parameters</span></div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based.html#ac0a0277c8d9d397cc30722aac33ad1b6"> 43</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___group_parameters___integer_based.html#ac0a0277c8d9d397cc30722aac33ad1b6">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters___integer_based.html">DL_GroupParameters_IntegerBased</a> &params)</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  {Initialize(params.GetModulus(), params.<a class="code" href="class_d_l___group_parameters___integer_based.html#ae6eb7fd2937f5eee9740d0db173f0475">GetSubgroupOrder</a>(), params.<a class="code" href="class_d_l___group_parameters.html#a8537f155cb10263bf7014ad676d1c70b">GetSubgroupGenerator</a>());}</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"></span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> /// \brief Create a group parameters over integers</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> /// \param rng a RandomNumberGenerator derived class</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> /// \param pbits the size of p, in bits</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> /// \details This function overload of Initialize() creates a new private key because it</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> /// takes a RandomNumberGenerator() as a parameter. If you have an existing keypair,</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> /// then use one of the other Initialize() overloads.</span></div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based.html#a2ea22939c10623a4b76167a538ca7c76"> 52</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___group_parameters___integer_based.html#a2ea22939c10623a4b76167a538ca7c76">Initialize</a>(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pbits)</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  {GenerateRandom(rng, <a class="code" href="algparam_8h.html#aa13eee74de98cf8aaa7e83f4fae7f28b">MakeParameters</a>(<span class="stringliteral">"ModulusSize"</span>, (<span class="keywordtype">int</span>)pbits));}</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"></span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> /// \brief Initialize a group parameters over integers</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> /// \param p the modulus</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> /// \param g the generator</span></div><div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based.html#a25973fc93a80e0f199818633d63d205a"> 58</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___group_parameters___integer_based.html#a25973fc93a80e0f199818633d63d205a">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g)</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  {SetModulusAndSubgroupGenerator(p, g); SetSubgroupOrder(ComputeGroupOrder(p)/2);}</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"></span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> /// \brief Initialize a group parameters over integers</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> /// \param p the modulus</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> /// \param q the subgroup order</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> /// \param g the generator</span></div><div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based.html#ac55789bf312e004b6d7d67ec3124ec7e"> 65</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___group_parameters___integer_based.html#ac55789bf312e004b6d7d67ec3124ec7e">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g)</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  {SetModulusAndSubgroupGenerator(p, g); SetSubgroupOrder(q);}</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// ASN1Object interface</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">void</span> <a class="code" href="class_a_s_n1_object.html#a430af8c994bc78d996067247fa5a0770">BERDecode</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &bt);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">void</span> <a class="code" href="class_a_s_n1_object.html#a10e40187a6ba048dfc8a2c8ca5c6c2ec">DEREncode</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &bt) <span class="keyword">const</span>;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="comment">// GeneratibleCryptoMaterial interface</span><span class="comment"></span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> /*! parameters: (ModulusSize, SubgroupOrderSize (optional)) */</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">void</span> GenerateRandom(<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> &alg);</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">bool</span> GetVoidValue(<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="l00076"></a><span class="lineno"> 76</span>  <span class="keywordtype">void</span> AssignFrom(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &source);</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// DL_GroupParameters</span></div><div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based.html#ae6eb7fd2937f5eee9740d0db173f0475"> 79</a></span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> & <a class="code" href="class_d_l___group_parameters___integer_based.html#ae6eb7fd2937f5eee9740d0db173f0475">GetSubgroupOrder</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_q;}</div><div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based.html#a2aa2e513e93ac6110fafa7c26fd6dcd3"> 80</a></span>  <a class="code" href="class_integer.html">Integer</a> <a class="code" href="class_d_l___group_parameters___integer_based.html#a2aa2e513e93ac6110fafa7c26fd6dcd3">GetGroupOrder</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> GetFieldType() == 1 ? GetModulus()-<a class="code" href="class_integer.html#a8c070592581bf6c2f928c72bfa1c1638">Integer::One</a>() : GetModulus()+<a class="code" href="class_integer.html#a8c070592581bf6c2f928c72bfa1c1638">Integer::One</a>();}</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordtype">bool</span> ValidateGroup(<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="l00082"></a><span class="lineno"> 82</span>  <span class="keywordtype">bool</span> ValidateElement(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> level, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &element, <span class="keyword">const</span> <a class="code" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation<Integer></a> *precomp) <span class="keyword">const</span>;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">bool</span> FastSubgroupCheckAvailable()<span class="keyword"> const </span>{<span class="keywordflow">return</span> GetCofactor() == 2;}</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>  <span class="comment">// Cygwin i386 crash at -O3; see http://github.com/weidai11/cryptopp/issues/40.</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordtype">void</span> EncodeElement(<span class="keywordtype">bool</span> reversible, <span class="keyword">const</span> Element &element, <span class="keywordtype">byte</span> *encoded) <span class="keyword">const</span>;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetEncodedElementSize(<span class="keywordtype">bool</span> reversible) <span class="keyword">const</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>  <a class="code" href="class_integer.html">Integer</a> DecodeElement(<span class="keyword">const</span> <span class="keywordtype">byte</span> *encoded, <span class="keywordtype">bool</span> checkForGroupMembership) <span class="keyword">const</span>;</div><div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based.html#a7b5abc19e80f89d78e102de62a35f7f6"> 90</a></span>  <a class="code" href="class_integer.html">Integer</a> <a class="code" href="class_d_l___group_parameters___integer_based.html#a7b5abc19e80f89d78e102de62a35f7f6">ConvertElementToInteger</a>(<span class="keyword">const</span> Element &element)<span class="keyword"> const</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="keyword"> </span>{<span class="keywordflow">return</span> element;}</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="class_integer.html">Integer</a> GetMaxExponent() <span class="keyword">const</span>;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">static</span> std::string CRYPTOPP_API StaticAlgorithmNamePrefix() {<span class="keywordflow">return</span> <span class="stringliteral">""</span>;}</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="class_o_i_d.html">OID</a> GetAlgorithmID() <span class="keyword">const</span>;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">virtual</span> <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> & GetModulus() <span class="keyword">const</span> =0;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetModulusAndSubgroupGenerator(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g) =0;</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">void</span> SetSubgroupOrder(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q)</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  {m_q = q; ParametersChanged();}</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> <span class="keyword">protected</span>:</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="class_integer.html">Integer</a> ComputeGroupOrder(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &modulus)<span class="keyword"> const</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword"> </span>{<span class="keywordflow">return</span> modulus-(GetFieldType() == 1 ? 1 : -1);}</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// GF(p) = 1, GF(p^2) = 2</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span> GetFieldType() <span class="keyword">const</span> =0;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetDefaultSubgroupOrderSize(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> modulusSize) <span class="keyword">const</span>;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="class_integer.html">Integer</a> m_q;</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> <span class="comment"></span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment">/// \brief Integer-based GroupParameters default implementation</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment">/// \tparam GROUP_PRECOMP group parameters precomputation specialization</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment">/// \tparam BASE_PRECOMP base class precomputation specialization</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> GROUP_PRECOMP, <span class="keyword">class</span> BASE_PRECOMP = DL_FixedBasePrecomputationImpl<<span class="keyword">typename</span> GROUP_PRECOMP::Element> ></div><div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based_impl.html"> 119</a></span> <span class="keyword">class </span>CRYPTOPP_NO_VTABLE <a class="code" href="class_d_l___group_parameters___integer_based_impl.html">DL_GroupParameters_IntegerBasedImpl</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___group_parameters_impl.html">DL_GroupParametersImpl</a><GROUP_PRECOMP, BASE_PRECOMP, DL_GroupParameters_IntegerBased></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> {</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">typedef</span> <a class="code" href="class_d_l___group_parameters___integer_based_impl.html">DL_GroupParameters_IntegerBasedImpl<GROUP_PRECOMP, BASE_PRECOMP></a> <a class="code" href="class_d_l___group_parameters___integer_based.html">ThisClass</a>;</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> <span class="keyword">public</span>:</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> GROUP_PRECOMP::Element Element;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___group_parameters___integer_based_impl.html">DL_GroupParameters_IntegerBasedImpl</a>() {}</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// GeneratibleCryptoMaterial interface</span></div><div class="line"><a name="l00129"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based_impl.html#aa1ffeb20e890b31c3c3da0130bd73d46"> 129</a></span>  <span class="keywordtype">bool</span> <a class="code" href="class_d_l___group_parameters___integer_based_impl.html#aa1ffeb20e890b31c3c3da0130bd73d46">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="l00130"></a><span class="lineno"> 130</span> <span class="keyword"> </span>{<span class="keywordflow">return</span> GetValueHelper<DL_GroupParameters_IntegerBased>(<span class="keyword">this</span>, name, valueType, pValue).Assignable();}</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based_impl.html#a0d668d2148cf57078a93f3a5a4b4ac2a"> 132</a></span>  <span class="keywordtype">void</span> <a class="code" href="class_d_l___group_parameters___integer_based_impl.html#a0d668d2148cf57078a93f3a5a4b4ac2a">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="l00133"></a><span class="lineno"> 133</span>  {AssignFromHelper<DL_GroupParameters_IntegerBased>(<span class="keyword">this</span>, source);}</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>  <span class="comment">// DL_GroupParameters</span></div><div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based_impl.html#a3f87996b08487e46f26d2915881c10c9"> 136</a></span>  <span class="keyword">const</span> <a class="code" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation<Element></a> & <a class="code" href="class_d_l___group_parameters___integer_based_impl.html#a3f87996b08487e46f26d2915881c10c9">GetBasePrecomputation</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> this->m_gpc;}</div><div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___integer_based_impl.html#aa6f498af673543a7569d67e1c874e90c"> 137</a></span>  <a class="code" href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation<Element></a> & <a class="code" href="class_d_l___group_parameters___integer_based_impl.html#aa6f498af673543a7569d67e1c874e90c">AccessBasePrecomputation</a>() {<span class="keywordflow">return</span> this->m_gpc;}</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>  <span class="comment">// IntegerGroupParameters</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> & GetModulus()<span class="keyword"> const </span>{<span class="keywordflow">return</span> this->m_groupPrecomputation.GetModulus();}</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> & GetGenerator()<span class="keyword"> const </span>{<span class="keywordflow">return</span> this->m_gpc.GetBase(this-><a class="code" href="class_d_l___group_parameters_impl.html#a6d8848121098fc1e59a4148def34d449">GetGroupPrecomputation</a>());}</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="keywordtype">void</span> SetModulusAndSubgroupGenerator(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g) <span class="comment">// these have to be set together</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  {this->m_groupPrecomputation.SetModulus(p); this->m_gpc.SetBase(this-><a class="code" href="class_d_l___group_parameters_impl.html#a6d8848121098fc1e59a4148def34d449">GetGroupPrecomputation</a>(), g); this->ParametersChanged();}</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// non-inherited</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">bool</span> <a class="code" href="asn_8h.html#ab065716a8772762f9e717705901aa924">operator==</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters___integer_based_impl.html">DL_GroupParameters_IntegerBasedImpl<GROUP_PRECOMP, BASE_PRECOMP></a> &rhs)<span class="keyword"> const</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="keyword"> </span>{<span class="keywordflow">return</span> GetModulus() == rhs.GetModulus() && GetGenerator() == rhs.GetGenerator() && this->GetSubgroupOrder() == rhs.<a class="code" href="class_d_l___group_parameters___integer_based.html#ae6eb7fd2937f5eee9740d0db173f0475">GetSubgroupOrder</a>();}</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordtype">bool</span> <a class="code" href="asn_8h.html#acb32287cdfa32ecdb0a048aceb283f7d">operator!=</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters___integer_based_impl.html">DL_GroupParameters_IntegerBasedImpl<GROUP_PRECOMP, BASE_PRECOMP></a> &rhs)<span class="keyword"> const</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="keyword"> </span>{<span class="keywordflow">return</span> !<a class="code" href="asn_8h.html#ab065716a8772762f9e717705901aa924">operator==</a>(rhs);}</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"> 153</span> CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___group_parameters___integer_based_impl.html">DL_GroupParameters_IntegerBasedImpl<ModExpPrecomputation></a>;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment"></span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment">/// \brief GF(p) group parameters</span></div><div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___g_f_p.html"> 156</a></span> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL <a class="code" href="class_d_l___group_parameters___g_f_p.html">DL_GroupParameters_GFP</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___group_parameters___integer_based_impl.html">DL_GroupParameters_IntegerBasedImpl</a><ModExpPrecomputation></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> <span class="keyword">public</span>:</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___group_parameters___g_f_p.html">DL_GroupParameters_GFP</a>() {}</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="comment">// DL_GroupParameters</span></div><div class="line"><a name="l00162"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___g_f_p.html#a650fb0b1e1cf5fd895384cf38a2b1357"> 162</a></span>  <span class="keywordtype">bool</span> <a class="code" href="class_d_l___group_parameters___g_f_p.html#a650fb0b1e1cf5fd895384cf38a2b1357">IsIdentity</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &element)<span class="keyword"> const </span>{<span class="keywordflow">return</span> element == <a class="code" href="class_integer.html#a8c070592581bf6c2f928c72bfa1c1638">Integer::One</a>();}</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">void</span> <a class="code" href="class_d_l___group_parameters.html#ac11607926a66ce8ba8ae273a5b0464e7">SimultaneousExponentiate</a>(Element *results, <span class="keyword">const</span> Element &base, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> *exponents, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> exponentsCount) <span class="keyword">const</span>;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="comment">// NameValuePairs interface</span></div><div class="line"><a name="l00166"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___g_f_p.html#a54dfa60d5395860fe44fba4caed231b5"> 166</a></span>  <span class="keywordtype">bool</span> <a class="code" href="class_d_l___group_parameters___g_f_p.html#a54dfa60d5395860fe44fba4caed231b5">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="l00167"></a><span class="lineno"> 167</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> GetValueHelper<DL_GroupParameters_IntegerBased>(<span class="keyword">this</span>, name, valueType, pValue).Assignable();</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> </div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="comment">// used by MQV</span></div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  Element MultiplyElements(<span class="keyword">const</span> Element &a, <span class="keyword">const</span> Element &b) <span class="keyword">const</span>;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  Element CascadeExponentiate(<span class="keyword">const</span> Element &element1, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &exponent1, <span class="keyword">const</span> Element &element2, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &exponent2) <span class="keyword">const</span>;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> </div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordtype">int</span> GetFieldType()<span class="keyword"> const </span>{<span class="keywordflow">return</span> 1;}</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> };</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment"></span></div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment">/// \brief GF(p) group parameters that default to safe primes</span></div><div class="line"><a name="l00180"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___g_f_p___default_safe_prime.html"> 180</a></span> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL <a class="code" href="class_d_l___group_parameters___g_f_p___default_safe_prime.html">DL_GroupParameters_GFP_DefaultSafePrime</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___group_parameters___g_f_p.html">DL_GroupParameters_GFP</a></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> {</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">typedef</span> <a class="code" href="struct_enum_to_type.html">NoCofactorMultiplication</a> <a class="code" href="struct_enum_to_type.html">DefaultCofactorOption</a>;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___group_parameters___g_f_p___default_safe_prime.html">DL_GroupParameters_GFP_DefaultSafePrime</a>() {}</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetDefaultSubgroupOrderSize(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> modulusSize)<span class="keyword"> const </span>{<span class="keywordflow">return</span> modulusSize-1;}</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> };</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment"></span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment">/// \brief GDSA algorithm</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment">/// \tparam T FieldElement type or class</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00194"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___g_d_s_a.html"> 194</a></span> <span class="keyword">class </span><a class="code" href="class_d_l___algorithm___g_d_s_a.html">DL_Algorithm_GDSA</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___elgamal_like_signature_algorithm.html">DL_ElgamalLikeSignatureAlgorithm</a><T></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> {</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  CRYPTOPP_STATIC_CONSTEXPR <span class="keyword">const</span> <span class="keywordtype">char</span>* CRYPTOPP_API StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"DSA-1363"</span>;}</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___algorithm___g_d_s_a.html">DL_Algorithm_GDSA</a>() {}</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00201"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___g_d_s_a.html#ab487a0a58eb06bf8133efd360a639075"> 201</a></span>  <span class="keywordtype">void</span> <a class="code" href="class_d_l___algorithm___g_d_s_a.html#ab487a0a58eb06bf8133efd360a639075">Sign</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<T></a> &params, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &x, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &k, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &e, <a class="code" href="class_integer.html">Integer</a> &r, <a class="code" href="class_integer.html">Integer</a> &s)<span class="keyword"> const</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q = params.<a class="code" href="class_d_l___group_parameters.html#aeff4e59562d2c9b0ffc6b677e8ce409a">GetSubgroupOrder</a>();</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  r %= q;</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <a class="code" href="class_integer.html">Integer</a> kInv = k.<a class="code" href="class_integer.html#af805574831ce19221692966e6217e6e0">InverseMod</a>(q);</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  s = (kInv * (x*r + e)) % q;</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(!!r && !!s);</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div><div class="line"><a name="l00210"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___g_d_s_a.html#aa88f8827bab1adc8d61a2ba4f87941e7"> 210</a></span>  <span class="keywordtype">bool</span> <a class="code" href="class_d_l___algorithm___g_d_s_a.html#aa88f8827bab1adc8d61a2ba4f87941e7">Verify</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<T></a> &params, <span class="keyword">const</span> <a class="code" href="class_d_l___public_key.html">DL_PublicKey<T></a> &publicKey, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &e, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &r, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &s)<span class="keyword"> const</span></div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q = params.<a class="code" href="class_d_l___group_parameters.html#aeff4e59562d2c9b0ffc6b677e8ce409a">GetSubgroupOrder</a>();</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">if</span> (r>=q || r<1 || s>=q || s<1)</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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>  <a class="code" href="class_integer.html">Integer</a> w = s.<a class="code" href="class_integer.html#af805574831ce19221692966e6217e6e0">InverseMod</a>(q);</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <a class="code" href="class_integer.html">Integer</a> u1 = (e * w) % q;</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <a class="code" href="class_integer.html">Integer</a> u2 = (r * w) % q;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="comment">// verify r == (g^u1 * y^u2 mod p) mod q</span></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">return</span> r == params.<a class="code" href="class_d_l___group_parameters.html#afb36d983bb45fe3b8acb1767c0060700">ConvertElementToInteger</a>(publicKey.<a class="code" href="class_d_l___public_key.html#ac9f9cdb455c4a859e50d202f67008cb8">CascadeExponentiateBaseAndPublicElement</a>(u1, u2)) % q;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> };</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment"></span></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment">/// \brief DSA signature algorithm based on RFC 6979</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment">/// \tparam T FieldElement type or class</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment">/// \tparam H HashTransformation derived class</span></div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment">/// \sa <a href="http://tools.ietf.org/rfc/rfc6979.txt">RFC 6979, Deterministic Usage of the</span></div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment">/// Digital Signature Algorithm (DSA) and Elliptic Curve Digital Signature Algorithm (ECDSA)</a></span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment">/// \since Crypto++ 6.0</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> H></div><div class="line"><a name="l00231"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___d_s_a___r_f_c6979.html"> 231</a></span> <span class="keyword">class </span><a class="code" href="class_d_l___algorithm___d_s_a___r_f_c6979.html">DL_Algorithm_DSA_RFC6979</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___algorithm___g_d_s_a.html">DL_Algorithm_GDSA</a><T>, <span class="keyword">public</span> <a class="code" href="class_deterministic_signature_algorithm.html">DeterministicSignatureAlgorithm</a></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">public</span>:</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  CRYPTOPP_STATIC_CONSTEXPR <span class="keyword">const</span> <span class="keywordtype">char</span>* CRYPTOPP_API StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"DSA-RFC6979"</span>;}</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___algorithm___d_s_a___r_f_c6979.html">DL_Algorithm_DSA_RFC6979</a>() {}</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordtype">bool</span> IsProbabilistic()<span class="keyword"> const</span></div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="keyword"> </span>{<span class="keywordflow">return</span> <span class="keyword">false</span>;}</div><div class="line"><a name="l00240"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___d_s_a___r_f_c6979.html#ab58c98659b96786f1c8a823f0f251aee"> 240</a></span>  <span class="keywordtype">bool</span> <a class="code" href="class_d_l___algorithm___d_s_a___r_f_c6979.html#ab58c98659b96786f1c8a823f0f251aee">IsDeterministic</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="keyword"> </span>{<span class="keywordflow">return</span> <span class="keyword">true</span>;}</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="comment">// Deterministic K</span></div><div class="line"><a name="l00244"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___d_s_a___r_f_c6979.html#a4138d1f4d6c58e4465448c8e283b0d7f"> 244</a></span>  <a class="code" href="class_integer.html">Integer</a> <a class="code" href="class_d_l___algorithm___d_s_a___r_f_c6979.html#a4138d1f4d6c58e4465448c8e283b0d7f">GenerateRandom</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &x, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &e)<span class="keyword"> const</span></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">byte</span> zero = 0, one = 1;</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> qlen = q.<a class="code" href="class_integer.html#a867356d88074424328d0ebb9bea63254">BitCount</a>();</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> rlen = <a class="code" href="misc_8h.html#a7c5d30b17c9d4869fdc3458dd05c500d">BitsToBytes</a>(qlen);</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">// Step (a) - formatted E(m)</span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> BH(e.MinEncodedSize());</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  e.Encode(BH, BH.size());</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  BH = bits2octets(BH, q);</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> </div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="comment">// Step (a) - private key to byte array</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> BX(<a class="code" href="misc_8h.html#af1490597cb11989e78d5ba5b5f21266b">STDMAX</a>(rlen, x.MinEncodedSize()));</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  x.Encode(BX, BX.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="comment">// Step (b)</span></div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> V(H::DIGESTSIZE);</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  std::fill(V.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>(), V.<a class="code" href="class_sec_block.html#a11a05906688172579cd3520816799446">begin</a>()+H::DIGESTSIZE, one);</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="comment">// Step (c)</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> K(H::DIGESTSIZE);</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  std::fill(K.begin(), K.begin()+H::DIGESTSIZE, zero);</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> </div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="comment">// Step (d)</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  m_hmac.<a class="code" href="class_simple_keying_interface.html#adf3c29b3ef3af74788a58c7c49887fd7">SetKey</a>(K, K.size());</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(V, V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(&zero, 1);</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(BX, BX.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(BH, BH.size());</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#a5454c1446981ddee322b0521c6ebd375">TruncatedFinal</a>(K, K.size());</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> </div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="comment">// Step (e)</span></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  m_hmac.<a class="code" href="class_simple_keying_interface.html#adf3c29b3ef3af74788a58c7c49887fd7">SetKey</a>(K, K.size());</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(V, V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#a5454c1446981ddee322b0521c6ebd375">TruncatedFinal</a>(V, V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> </div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="comment">// Step (f)</span></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  m_hmac.<a class="code" href="class_simple_keying_interface.html#adf3c29b3ef3af74788a58c7c49887fd7">SetKey</a>(K, K.size());</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(V, V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(&one, 1);</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(BX, BX.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(BH, BH.size());</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#a5454c1446981ddee322b0521c6ebd375">TruncatedFinal</a>(K, K.size());</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>  <span class="comment">// Step (g)</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  m_hmac.<a class="code" href="class_simple_keying_interface.html#adf3c29b3ef3af74788a58c7c49887fd7">SetKey</a>(K, K.size());</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(V, V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#a5454c1446981ddee322b0521c6ebd375">TruncatedFinal</a>(V, V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</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>  <a class="code" href="class_integer.html">Integer</a> k;</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> temp(rlen);</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keywordflow">for</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">// We want qlen bits, but we support only hash functions with an output length</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="comment">// multiple of 8; hence, we will gather rlen bits, i.e., rolen octets.</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keywordtype">size_t</span> toff = 0;</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">while</span> (toff < rlen)</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  {</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(V, V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#a5454c1446981ddee322b0521c6ebd375">TruncatedFinal</a>(V, V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordtype">size_t</span> cc = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>(), temp.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>() - toff);</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <a class="code" href="misc_8h.html#a5f6fcbaaf6f72fe46a6d911b033dfea0">memcpy_s</a>(temp+toff, temp.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>() - toff, V, cc);</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  toff += cc;</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  }</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span> </div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  k = bits2int(temp, qlen);</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">if</span> (k > 0 && k < q)</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="comment">// k is not in the proper range; update K and V, and loop.</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(V, V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(&zero, 1);</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#a5454c1446981ddee322b0521c6ebd375">TruncatedFinal</a>(K, K.size());</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  m_hmac.<a class="code" href="class_simple_keying_interface.html#adf3c29b3ef3af74788a58c7c49887fd7">SetKey</a>(K, K.size());</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#aefb8a1fb43ef8c9390ee89bbb41c83af">Update</a>(V, V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  m_hmac.<a class="code" href="class_h_m_a_c___base.html#a5454c1446981ddee322b0521c6ebd375">TruncatedFinal</a>(V, V.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</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> </div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">return</span> k;</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> </div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <a class="code" href="class_integer.html">Integer</a> bits2int(<span class="keyword">const</span> <a class="code" href="class_sec_byte_block.html">SecByteBlock</a>& bits, <span class="keywordtype">size_t</span> qlen)<span class="keyword"> const</span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <a class="code" href="class_integer.html">Integer</a> ret(bits, bits.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>());</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="keywordtype">size_t</span> blen = bits.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>()*8;</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> </div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordflow">if</span> (blen > qlen)</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  ret >>= blen - qlen;</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> </div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  }</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> </div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="comment">// RFC 6979 support function. Takes an integer and converts it into bytes that</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="comment">// are the same length as an elliptic curve's order.</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> int2octets(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a>& val, <span class="keywordtype">size_t</span> rlen)<span class="keyword"> const</span></div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> block(val.<a class="code" href="class_integer.html#a82bf50f0f9011b2285cd13f181f04a5c">MinEncodedSize</a>());</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  val.<a class="code" href="class_integer.html#af7f7a3d1250efd10d84d51ba53297535">Encode</a>(block, val.<a class="code" href="class_integer.html#a82bf50f0f9011b2285cd13f181f04a5c">MinEncodedSize</a>());</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">if</span> (block.size() == rlen)</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">return</span> block;</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span> </div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="comment">// The least significant bytes are the ones we need to preserve.</span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> t(rlen);</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordflow">if</span> (block.size() > rlen)</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  {</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordtype">size_t</span> offset = block.size() - rlen;</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  std::memcpy(t, block + offset, rlen);</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>  <span class="keywordflow">else</span> <span class="comment">// block.size() < rlen</span></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  {</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordtype">size_t</span> offset = rlen - block.size();</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  memset(t, <span class="stringliteral">'\x00'</span>, offset);</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  std::memcpy(t + offset, block, rlen - offset);</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  }</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span> </div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">return</span> t;</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> </div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">// Turn a stream of bits into a set of bytes with the same length as an elliptic</span></div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="comment">// curve's order.</span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> bits2octets(<span class="keyword">const</span> <a class="code" href="class_sec_byte_block.html">SecByteBlock</a>& in, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a>& q)<span class="keyword"> const</span></div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <a class="code" href="class_integer.html">Integer</a> b2 = bits2int(in, q.<a class="code" href="class_integer.html#a867356d88074424328d0ebb9bea63254">BitCount</a>());</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <a class="code" href="class_integer.html">Integer</a> b1 = b2 - q;</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordflow">return</span> int2octets(b1.IsNegative() ? b2 : b1, q.<a class="code" href="class_integer.html#ae7ee3f1bbea2b3138c6d8f1ce1aa2bf9">ByteCount</a>());</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  }</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span> </div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keyword">mutable</span> H m_hash;</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keyword">mutable</span> <a class="code" href="class_h_m_a_c.html">HMAC<H></a> m_hmac;</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"></span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="comment">/// \brief German Digital Signature Algorithm</span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="comment">/// \tparam T FieldElement type or class</span></div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span> <span class="comment">/// \details The Digital Signature Scheme ECGDSA does not define the algorithm over integers. Rather, the</span></div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="comment">/// signature algorithm is only defined over elliptic curves. However, The library design is such that the</span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="comment">/// generic algorithm reside in <tt>gfpcrypt.h</tt>.</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="comment">/// \sa Erwin Hess, Marcus Schafheutle, and Pascale Serf <A HREF="http://www.teletrust.de/fileadmin/files/oid/ecgdsa_final.pdf"></span></div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="comment">/// The Digital Signature Scheme ECGDSA (October 24, 2006)</A></span></div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00389"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___g_d_s_a___i_s_o15946.html"> 389</a></span> <span class="keyword">class </span><a class="code" href="class_d_l___algorithm___g_d_s_a___i_s_o15946.html">DL_Algorithm_GDSA_ISO15946</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___elgamal_like_signature_algorithm.html">DL_ElgamalLikeSignatureAlgorithm</a><T></div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span> {</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  CRYPTOPP_STATIC_CONSTEXPR <span class="keyword">const</span> <span class="keywordtype">char</span>* CRYPTOPP_API StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"GDSA-ISO15946"</span>;}</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> </div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___algorithm___g_d_s_a___i_s_o15946.html">DL_Algorithm_GDSA_ISO15946</a>() {}</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span> </div><div class="line"><a name="l00396"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___g_d_s_a___i_s_o15946.html#a0b48dfce923265d593cf52d8e797f4f9"> 396</a></span>  <span class="keywordtype">void</span> <a class="code" href="class_d_l___algorithm___g_d_s_a___i_s_o15946.html#a0b48dfce923265d593cf52d8e797f4f9">Sign</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<T></a> &params, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &x, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &k, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &e, <a class="code" href="class_integer.html">Integer</a> &r, <a class="code" href="class_integer.html">Integer</a> &s)<span class="keyword"> const</span></div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q = params.<a class="code" href="class_d_l___group_parameters.html#aeff4e59562d2c9b0ffc6b677e8ce409a">GetSubgroupOrder</a>();</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="comment">// r = x(k * G) mod q</span></div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  r = params.<a class="code" href="class_d_l___group_parameters.html#afb36d983bb45fe3b8acb1767c0060700">ConvertElementToInteger</a>(params.<a class="code" href="class_d_l___group_parameters.html#ae5bf9692b8879e0ed5ad7e16a696818d">ExponentiateBase</a>(k)) % q;</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="comment">// s = (k * r - h(m)) * d_A mod q</span></div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  s = (k * r - e) * x % q;</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(!!r && !!s);</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  }</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span> </div><div class="line"><a name="l00406"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___g_d_s_a___i_s_o15946.html#ac2cf143d1bee155ee46c3f90a869e87b"> 406</a></span>  <span class="keywordtype">bool</span> <a class="code" href="class_d_l___algorithm___g_d_s_a___i_s_o15946.html#ac2cf143d1bee155ee46c3f90a869e87b">Verify</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<T></a> &params, <span class="keyword">const</span> <a class="code" href="class_d_l___public_key.html">DL_PublicKey<T></a> &publicKey, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &e, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &r, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &s)<span class="keyword"> const</span></div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q = params.<a class="code" href="class_d_l___group_parameters.html#aeff4e59562d2c9b0ffc6b677e8ce409a">GetSubgroupOrder</a>();</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="keywordflow">if</span> (r>=q || r<1 || s>=q || s<1)</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span> </div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a>& rInv = r.<a class="code" href="class_integer.html#af805574831ce19221692966e6217e6e0">InverseMod</a>(q);</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> u1 = (rInv * e) % q;</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> u2 = (rInv * s) % q;</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="comment">// verify x(G^u1 + P_A^u2) mod q</span></div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="keywordflow">return</span> r == params.<a class="code" href="class_d_l___group_parameters.html#afb36d983bb45fe3b8acb1767c0060700">ConvertElementToInteger</a>(publicKey.<a class="code" href="class_d_l___public_key.html#ac9f9cdb455c4a859e50d202f67008cb8">CascadeExponentiateBaseAndPublicElement</a>(u1, u2)) % q;</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  }</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> </div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___algorithm___g_d_s_a.html">DL_Algorithm_GDSA<Integer></a>;</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___algorithm___d_s_a___r_f_c6979.html">DL_Algorithm_DSA_RFC6979<Integer, SHA1></a>;</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___algorithm___d_s_a___r_f_c6979.html">DL_Algorithm_DSA_RFC6979<Integer, SHA224></a>;</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___algorithm___d_s_a___r_f_c6979.html">DL_Algorithm_DSA_RFC6979<Integer, SHA256></a>;</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span> CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___algorithm___d_s_a___r_f_c6979.html">DL_Algorithm_DSA_RFC6979<Integer, SHA384></a>;</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___algorithm___d_s_a___r_f_c6979.html">DL_Algorithm_DSA_RFC6979<Integer, SHA512></a>;</div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="comment"></span></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="comment">/// \brief NR algorithm</span></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="comment">/// \tparam T FieldElement type or class</span></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T></div><div class="line"><a name="l00430"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___n_r.html"> 430</a></span> <span class="keyword">class </span><a class="code" href="class_d_l___algorithm___n_r.html">DL_Algorithm_NR</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___elgamal_like_signature_algorithm.html">DL_ElgamalLikeSignatureAlgorithm</a><T></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> <span class="keyword">public</span>:</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  CRYPTOPP_STATIC_CONSTEXPR <span class="keyword">const</span> <span class="keywordtype">char</span>* CRYPTOPP_API StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"NR"</span>;}</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>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___algorithm___n_r.html">DL_Algorithm_NR</a>() {}</div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div><div class="line"><a name="l00437"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___n_r.html#a8d581a1b4a90f9ccb033f04551df3b51"> 437</a></span>  <span class="keywordtype">void</span> <a class="code" href="class_d_l___algorithm___n_r.html#a8d581a1b4a90f9ccb033f04551df3b51">Sign</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<T></a> &params, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &x, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &k, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &e, <a class="code" href="class_integer.html">Integer</a> &r, <a class="code" href="class_integer.html">Integer</a> &s)<span class="keyword"> const</span></div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q = params.<a class="code" href="class_d_l___group_parameters.html#aeff4e59562d2c9b0ffc6b677e8ce409a">GetSubgroupOrder</a>();</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  r = (r + e) % q;</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  s = (k - x*r) % q;</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(!!r);</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> </div><div class="line"><a name="l00445"></a><span class="lineno"><a class="line" href="class_d_l___algorithm___n_r.html#a1751a1111a3dc80e289eb522fc752747"> 445</a></span>  <span class="keywordtype">bool</span> <a class="code" href="class_d_l___algorithm___n_r.html#a1751a1111a3dc80e289eb522fc752747">Verify</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<T></a> &params, <span class="keyword">const</span> <a class="code" href="class_d_l___public_key.html">DL_PublicKey<T></a> &publicKey, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &e, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &r, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &s)<span class="keyword"> const</span></div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q = params.<a class="code" href="class_d_l___group_parameters.html#aeff4e59562d2c9b0ffc6b677e8ce409a">GetSubgroupOrder</a>();</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keywordflow">if</span> (r>=q || r<1 || s>=q)</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> </div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="comment">// check r == (m_g^s * m_y^r + m) mod m_q</span></div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">return</span> r == (params.<a class="code" href="class_d_l___group_parameters.html#afb36d983bb45fe3b8acb1767c0060700">ConvertElementToInteger</a>(publicKey.<a class="code" href="class_d_l___public_key.html#ac9f9cdb455c4a859e50d202f67008cb8">CascadeExponentiateBaseAndPublicElement</a>(s, r)) + e) % q;</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  }</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> <span class="comment"></span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="comment">/// \brief Discrete Log (DL) public key in GF(p) groups</span></div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span> <span class="comment">/// \tparam GP GroupParameters derived class</span></div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="comment">/// \details DSA public key format is defined in 7.3.3 of RFC 2459. The private key format is defined in 12.9 of PKCS #11 v2.10.</span></div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> GP></div><div class="line"><a name="l00460"></a><span class="lineno"><a class="line" href="class_d_l___public_key___g_f_p.html"> 460</a></span> <span class="keyword">class </span><a class="code" href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___public_key_impl.html">DL_PublicKeyImpl</a><GP></div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span> {</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP</a>() {}</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="comment"></span></div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="comment"> /// \brief Initialize a public key over GF(p)</span></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="comment"> /// \param params the group parameters</span></div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <span class="comment"> /// \param y the public element</span></div><div class="line"><a name="l00468"></a><span class="lineno"><a class="line" href="class_d_l___public_key___g_f_p.html#a06b9c78e45b40b6a5bdf3f3bb5a9b806"> 468</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___public_key___g_f_p.html#a06b9c78e45b40b6a5bdf3f3bb5a9b806">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters___integer_based.html">DL_GroupParameters_IntegerBased</a> &params, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &y)</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  {this->AccessGroupParameters().Initialize(params); this-><a class="code" href="class_d_l___public_key.html#a86cac45fc0ddaf07c057061b93cd8ce1">SetPublicElement</a>(y);}</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span> <span class="comment"></span></div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span> <span class="comment"> /// \brief Initialize a public key over GF(p)</span></div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="comment"> /// \param p the modulus</span></div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span> <span class="comment"> /// \param g the generator</span></div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span> <span class="comment"> /// \param y the public element</span></div><div class="line"><a name="l00475"></a><span class="lineno"><a class="line" href="class_d_l___public_key___g_f_p.html#a3488c76b9b7aa9b78ef83bc30b546c6d"> 475</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___public_key___g_f_p.html#a3488c76b9b7aa9b78ef83bc30b546c6d">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &y)</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  {this->AccessGroupParameters().Initialize(p, g); this-><a class="code" href="class_d_l___public_key.html#a86cac45fc0ddaf07c057061b93cd8ce1">SetPublicElement</a>(y);}</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span> <span class="comment"></span></div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <span class="comment"> /// \brief Initialize a public key over GF(p)</span></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="comment"> /// \param p the modulus</span></div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span> <span class="comment"> /// \param q the subgroup order</span></div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span> <span class="comment"> /// \param g the generator</span></div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span> <span class="comment"> /// \param y the public element</span></div><div class="line"><a name="l00483"></a><span class="lineno"><a class="line" href="class_d_l___public_key___g_f_p.html#adf536d6b1f23579db94bf563b8af45eb"> 483</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___public_key___g_f_p.html#adf536d6b1f23579db94bf563b8af45eb">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &y)</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  {this->AccessGroupParameters().Initialize(p, q, g); this-><a class="code" href="class_d_l___public_key.html#a86cac45fc0ddaf07c057061b93cd8ce1">SetPublicElement</a>(y);}</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span> </div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="comment">// X509PublicKey</span></div><div class="line"><a name="l00487"></a><span class="lineno"><a class="line" href="class_d_l___public_key___g_f_p.html#a9776ea4e0c4629e9e699145e0cf20d36"> 487</a></span>  <span class="keywordtype">void</span> <a class="code" href="class_d_l___public_key___g_f_p.html#a9776ea4e0c4629e9e699145e0cf20d36">BERDecodePublicKey</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &bt, <span class="keywordtype">bool</span>, <span class="keywordtype">size_t</span>)</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  {this-><a class="code" href="class_d_l___public_key.html#a86cac45fc0ddaf07c057061b93cd8ce1">SetPublicElement</a>(<a class="code" href="class_integer.html">Integer</a>(bt));}</div><div class="line"><a name="l00489"></a><span class="lineno"><a class="line" href="class_d_l___public_key___g_f_p.html#a522a9be5d350b0fce865e99e4045db01"> 489</a></span>  <span class="keywordtype">void</span> <a class="code" href="class_d_l___public_key___g_f_p.html#a522a9be5d350b0fce865e99e4045db01">DEREncodePublicKey</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &bt)<span class="keyword"> const</span></div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="keyword"> </span>{this-><a class="code" href="class_d_l___public_key.html#ab748086e14a92416ff49183f81f777c4">GetPublicElement</a>().DEREncode(bt);}</div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span> };</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="comment"></span></div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span> <span class="comment">/// \brief Discrete Log (DL) private key in GF(p) groups</span></div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span> <span class="comment">/// \tparam GP GroupParameters derived class</span></div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> GP></div><div class="line"><a name="l00496"></a><span class="lineno"><a class="line" href="class_d_l___private_key___g_f_p.html"> 496</a></span> <span class="keyword">class </span><a class="code" href="class_d_l___private_key___g_f_p.html">DL_PrivateKey_GFP</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___private_key_impl.html">DL_PrivateKeyImpl</a><GP></div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span> {</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___private_key___g_f_p.html">DL_PrivateKey_GFP</a>();</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="comment"></span></div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="comment"> /// \brief Create a private key</span></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="comment"> /// \param rng a RandomNumberGenerator derived class</span></div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="comment"> /// \param modulusBits the size of the modulus, in bits</span></div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="comment"> /// \details This function overload of Initialize() creates a new private key because it</span></div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span> <span class="comment"> /// takes a RandomNumberGenerator() as a parameter. If you have an existing keypair,</span></div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="comment"> /// then use one of the other Initialize() overloads.</span></div><div class="line"><a name="l00507"></a><span class="lineno"><a class="line" href="class_d_l___private_key___g_f_p.html#ad069712f5fa3ce6761d3f24d9c55b97d"> 507</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#ad069712f5fa3ce6761d3f24d9c55b97d">Initialize</a>(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> modulusBits)</div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  {this-><a class="code" href="class_generatable_crypto_material.html#a38d492343c32e530a5c2781b5797f755">GenerateRandomWithKeySize</a>(rng, modulusBits);}</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span> <span class="comment"></span></div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="comment"> /// \brief Create a private key</span></div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span> <span class="comment"> /// \param rng a RandomNumberGenerator derived class</span></div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span> <span class="comment"> /// \param p the modulus</span></div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span> <span class="comment"> /// \param g the generator</span></div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span> <span class="comment"> /// \details This function overload of Initialize() creates a new private key because it</span></div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span> <span class="comment"> /// takes a RandomNumberGenerator() as a parameter. If you have an existing keypair,</span></div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="comment"> /// then use one of the other Initialize() overloads.</span></div><div class="line"><a name="l00517"></a><span class="lineno"><a class="line" href="class_d_l___private_key___g_f_p.html#aa9a70c3bbfed80f78b2303f78c5cc65f"> 517</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#aa9a70c3bbfed80f78b2303f78c5cc65f">Initialize</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> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g)</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  {this-><a class="code" href="class_d_l___private_key_impl.html#ab80a3771a5ef623677775f7c5dddb1e0">GenerateRandom</a>(rng, <a class="code" href="algparam_8h.html#aa13eee74de98cf8aaa7e83f4fae7f28b">MakeParameters</a>(<span class="stringliteral">"Modulus"</span>, p)(<span class="stringliteral">"SubgroupGenerator"</span>, g));}</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <span class="comment"></span></div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span> <span class="comment"> /// \brief Create a private key</span></div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span> <span class="comment"> /// \param rng a RandomNumberGenerator derived class</span></div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span> <span class="comment"> /// \param p the modulus</span></div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span> <span class="comment"> /// \param q the subgroup order</span></div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span> <span class="comment"> /// \param g the generator</span></div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span> <span class="comment"> /// \details This function overload of Initialize() creates a new private key because it</span></div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span> <span class="comment"> /// takes a RandomNumberGenerator() as a parameter. If you have an existing keypair,</span></div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span> <span class="comment"> /// then use one of the other Initialize() overloads.</span></div><div class="line"><a name="l00528"></a><span class="lineno"><a class="line" href="class_d_l___private_key___g_f_p.html#a2783fbb6b0bf3d8984fa639260f9b1f2"> 528</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#a2783fbb6b0bf3d8984fa639260f9b1f2">Initialize</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> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g)</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  {this-><a class="code" href="class_d_l___private_key_impl.html#ab80a3771a5ef623677775f7c5dddb1e0">GenerateRandom</a>(rng, <a class="code" href="algparam_8h.html#aa13eee74de98cf8aaa7e83f4fae7f28b">MakeParameters</a>(<span class="stringliteral">"Modulus"</span>, p)(<span class="stringliteral">"SubgroupOrder"</span>, q)(<span class="stringliteral">"SubgroupGenerator"</span>, g));}</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span> <span class="comment"></span></div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span> <span class="comment"> /// \brief Initialize a private key over GF(p)</span></div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span> <span class="comment"> /// \param params the group parameters</span></div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span> <span class="comment"> /// \param x the private exponent</span></div><div class="line"><a name="l00534"></a><span class="lineno"><a class="line" href="class_d_l___private_key___g_f_p.html#af4fe22ddafeaf3f9c1ca455fe865ea02"> 534</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#af4fe22ddafeaf3f9c1ca455fe865ea02">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters___integer_based.html">DL_GroupParameters_IntegerBased</a> &params, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &x)</div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  {this->AccessGroupParameters().Initialize(params); this-><a class="code" href="class_d_l___private_key_impl.html#ad2756b046f9ee7f3c254c9fc2bb8be5d">SetPrivateExponent</a>(x);}</div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span> <span class="comment"></span></div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span> <span class="comment"> /// \brief Initialize a private key over GF(p)</span></div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span> <span class="comment"> /// \param p the modulus</span></div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span> <span class="comment"> /// \param g the generator</span></div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span> <span class="comment"> /// \param x the private exponent</span></div><div class="line"><a name="l00541"></a><span class="lineno"><a class="line" href="class_d_l___private_key___g_f_p.html#ae104770a2623183d9b7acd0147322532"> 541</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#ae104770a2623183d9b7acd0147322532">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &x)</div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  {this->AccessGroupParameters().Initialize(p, g); this-><a class="code" href="class_d_l___private_key_impl.html#ad2756b046f9ee7f3c254c9fc2bb8be5d">SetPrivateExponent</a>(x);}</div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="comment"></span></div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="comment"> /// \brief Initialize a private key over GF(p)</span></div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="comment"> /// \param p the modulus</span></div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span> <span class="comment"> /// \param q the subgroup order</span></div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="comment"> /// \param g the generator</span></div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <span class="comment"> /// \param x the private exponent</span></div><div class="line"><a name="l00549"></a><span class="lineno"><a class="line" href="class_d_l___private_key___g_f_p.html#ad81584c72391752ad51900e846bcca63"> 549</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#ad81584c72391752ad51900e846bcca63">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &x)</div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  {this->AccessGroupParameters().Initialize(p, q, g); this-><a class="code" href="class_d_l___private_key_impl.html#ad2756b046f9ee7f3c254c9fc2bb8be5d">SetPrivateExponent</a>(x);}</div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span> };</div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span> </div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="comment">// Out-of-line dtor due to AIX and GCC, http://github.com/weidai11/cryptopp/issues/499</span></div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span> <span class="keyword">template</span> <<span class="keyword">class</span> GP></div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span> <a class="code" href="class_d_l___private_key___g_f_p.html">DL_PrivateKey_GFP<GP>::~DL_PrivateKey_GFP</a>() {}</div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span> <span class="comment"></span></div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="comment">/// \brief Discrete Log (DL) signing/verification keys in GF(p) groups</span></div><div class="line"><a name="l00558"></a><span class="lineno"><a class="line" href="struct_d_l___signature_keys___g_f_p.html"> 558</a></span> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_d_l___signature_keys___g_f_p.html">DL_SignatureKeys_GFP</a></div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span> {</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <span class="keyword">typedef</span> <a class="code" href="class_d_l___group_parameters___g_f_p.html">DL_GroupParameters_GFP</a> <a class="code" href="class_d_l___group_parameters___g_f_p.html">GroupParameters</a>;</div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keyword">typedef</span> <a class="code" href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP<GroupParameters></a> <a class="code" href="class_d_l___public_key___g_f_p.html">PublicKey</a>;</div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <span class="keyword">typedef</span> <a class="code" href="class_d_l___private_key___g_f_p.html">DL_PrivateKey_GFP<GroupParameters></a> <a class="code" href="class_d_l___private_key___g_f_p.html">PrivateKey</a>;</div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span> };</div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span> <span class="comment"></span></div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span> <span class="comment">/// \brief Discrete Log (DL) encryption/decryption keys in GF(p) groups</span></div><div class="line"><a name="l00566"></a><span class="lineno"><a class="line" href="struct_d_l___crypto_keys___g_f_p.html"> 566</a></span> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_d_l___crypto_keys___g_f_p.html">DL_CryptoKeys_GFP</a></div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span> {</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keyword">typedef</span> <a class="code" href="class_d_l___group_parameters___g_f_p___default_safe_prime.html">DL_GroupParameters_GFP_DefaultSafePrime</a> <a class="code" href="class_d_l___group_parameters___g_f_p___default_safe_prime.html">GroupParameters</a>;</div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="keyword">typedef</span> <a class="code" href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP<GroupParameters></a> <a class="code" href="class_d_l___public_key___g_f_p.html">PublicKey</a>;</div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <span class="keyword">typedef</span> <a class="code" href="class_d_l___private_key___g_f_p.html">DL_PrivateKey_GFP<GroupParameters></a> <a class="code" href="class_d_l___private_key___g_f_p.html">PrivateKey</a>;</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span> };</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="comment"></span></div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="comment">/// \brief DSA signature scheme</span></div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="comment">/// \tparam H HashTransformation derived class</span></div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="comment">/// \sa <a href="http://www.weidai.com/scan-mirror/sig.html#DSA-1363">DSA-1363</a></span></div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="comment">/// \since Crypto++ 1.0 for DSA, Crypto++ 5.6.2 for DSA2</span></div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> H></div><div class="line"><a name="l00578"></a><span class="lineno"><a class="line" href="struct_g_d_s_a.html"> 578</a></span> <span class="keyword">struct </span><a class="code" href="struct_g_d_s_a.html">GDSA</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___s_s.html">DL_SS</a><</div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  DL_SignatureKeys_GFP,</div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  DL_Algorithm_GDSA<Integer>,</div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  DL_SignatureMessageEncodingMethod_DSA,</div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  H></div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span> {</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span> };</div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span> <span class="comment"></span></div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span> <span class="comment">/// \brief NR signature scheme</span></div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span> <span class="comment">/// \tparam H HashTransformation derived class</span></div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span> <span class="comment">/// \sa <a href="http://www.weidai.com/scan-mirror/sig.html#NR">NR</a></span></div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> H></div><div class="line"><a name="l00590"></a><span class="lineno"><a class="line" href="struct_n_r.html"> 590</a></span> <span class="keyword">struct </span><a class="code" href="struct_n_r.html">NR</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___s_s.html">DL_SS</a><</div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  DL_SignatureKeys_GFP,</div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  DL_Algorithm_NR<Integer>,</div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  DL_SignatureMessageEncodingMethod_NR,</div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  H></div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span> {</div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span> };</div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span> <span class="comment"></span></div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span> <span class="comment">/// \brief DSA group parameters</span></div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span> <span class="comment">/// \details These are GF(p) group parameters that are allowed by the DSA standard</span></div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span> <span class="comment">/// \sa DL_Keys_DSA</span></div><div class="line"><a name="l00601"></a><span class="lineno"><a class="line" href="class_d_l___group_parameters___d_s_a.html"> 601</a></span> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL <a class="code" href="class_d_l___group_parameters___d_s_a.html">DL_GroupParameters_DSA</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___group_parameters___g_f_p.html">DL_GroupParameters_GFP</a></div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span> {</div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___group_parameters___d_s_a.html">DL_GroupParameters_DSA</a>() {}</div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span> <span class="comment"></span></div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span> <span class="comment"> /*! also checks that the lengths of p and q are allowed by the DSA standard */</span></div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  <span class="keywordtype">bool</span> <a class="code" href="class_d_l___group_parameters___integer_based.html#abe42dee24455ea7aac8edee78012cbad">ValidateGroup</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>;<span class="comment"></span></div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="comment"> /*! parameters: (ModulusSize), or (Modulus, SubgroupOrder, SubgroupGenerator) */</span><span class="comment"></span></div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span> <span class="comment"> /*! ModulusSize must be between DSA::MIN_PRIME_LENGTH and DSA::MAX_PRIME_LENGTH, and divisible by DSA::PRIME_LENGTH_MULTIPLE */</span></div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  <span class="keywordtype">void</span> <a class="code" href="class_d_l___group_parameters___integer_based.html#a8c9a79c493a215ca37408bb7ddfb5533">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> &alg);</div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span> </div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> CRYPTOPP_API IsValidPrimeLength(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pbits)</div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  {<span class="keywordflow">return</span> pbits >= MIN_PRIME_LENGTH && pbits <= MAX_PRIME_LENGTH && pbits % PRIME_LENGTH_MULTIPLE == 0;}</div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span> </div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  <span class="keyword">enum</span> {MIN_PRIME_LENGTH = 1024, MAX_PRIME_LENGTH = 3072, PRIME_LENGTH_MULTIPLE = 1024};</div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span> };</div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span> </div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span> <span class="keyword">template</span> <<span class="keyword">class</span> H></div><div class="line"><a name="l00619"></a><span class="lineno"><a class="line" href="class_d_s_a2.html"> 619</a></span> <span class="keyword">class </span><a class="code" href="class_d_s_a2.html">DSA2</a>;</div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span> <span class="comment"></span></div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span> <span class="comment">/// \brief DSA keys</span></div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span> <span class="comment">/// \sa DL_GroupParameters_DSA</span></div><div class="line"><a name="l00623"></a><span class="lineno"><a class="line" href="struct_d_l___keys___d_s_a.html"> 623</a></span> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_d_l___keys___d_s_a.html">DL_Keys_DSA</a></div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span> {</div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="keyword">typedef</span> <a class="code" href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP<DL_GroupParameters_DSA></a> <a class="code" href="class_d_l___public_key___g_f_p.html">PublicKey</a>;</div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="keyword">typedef</span> <a class="code" href="class_d_l___private_key___with_signature_pairwise_consistency_test.html">DL_PrivateKey_WithSignaturePairwiseConsistencyTest<DL_PrivateKey_GFP<DL_GroupParameters_DSA></a>, <a class="code" href="class_d_s_a2.html">DSA2<SHA1></a> > <a class="code" href="class_d_l___private_key___with_signature_pairwise_consistency_test.html">PrivateKey</a>;</div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span> };</div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span> <span class="comment"></span></div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span> <span class="comment">/// \brief DSA signature scheme</span></div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span> <span class="comment">/// \tparam H HashTransformation derived class</span></div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span> <span class="comment">/// \details The class is named DSA2 instead of DSA for backwards compatibility because</span></div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="comment">/// DSA was a non-template class.</span></div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span> <span class="comment">/// \details DSA default method GenerateRandom uses a 2048-bit modulus and a 224-bit subgoup by default.</span></div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="comment">/// The modulus can be changed using the following code:</span></div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span> <span class="comment">/// <pre></span></div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span> <span class="comment">/// DSA::PrivateKey privateKey;</span></div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span> <span class="comment">/// privateKey.GenerateRandomWithKeySize(prng, 2048);</span></div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span> <span class="comment">/// </pre></span></div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span> <span class="comment">/// \details The subgroup order can be changed using the following code:</span></div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span> <span class="comment">/// <pre></span></div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span> <span class="comment">/// AlgorithmParameters params = MakeParameters</span></div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span> <span class="comment">/// (Name::ModulusSize(), 2048)</span></div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span> <span class="comment">/// (Name::SubgroupOrderSize(), 256);</span></div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span> <span class="comment">///</span></div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span> <span class="comment">/// DSA::PrivateKey privateKey;</span></div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span> <span class="comment">/// privateKey.GenerateRandom(prng, params);</span></div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span> <span class="comment">/// </pre></span></div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span> <span class="comment">/// \sa <a href="http://en.wikipedia.org/wiki/Digital_Signature_Algorithm">DSA</a>, as specified in FIPS 186-3,</span></div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span> <span class="comment">/// <a href="https://www.cryptopp.com/wiki/Digital_Signature_Algorithm">Digital Signature Algorithm</a> on the wiki, and</span></div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span> <span class="comment">/// <a href="https://www.cryptopp.com/wiki/NameValuePairs">NameValuePairs</a> on the wiki.</span></div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span> <span class="comment">/// \since Crypto++ 1.0 for DSA, Crypto++ 5.6.2 for DSA2, Crypto++ 6.1 for 2048-bit modulus.</span></div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> H></div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span> <span class="keyword">class </span><a class="code" href="class_d_s_a2.html">DSA2</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___s_s.html">DL_SS</a><</div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  DL_Keys_DSA,</div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  DL_Algorithm_GDSA<Integer>,</div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  DL_SignatureMessageEncodingMethod_DSA,</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  H,</div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  DSA2<H> ></div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span> {</div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="keyword">static</span> std::string CRYPTOPP_API StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"DSA/"</span> + (std::string)H::StaticAlgorithmName();}</div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span> };</div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span> <span class="comment"></span></div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span> <span class="comment">/// \brief DSA deterministic signature scheme</span></div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="comment">/// \tparam H HashTransformation derived class</span></div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="comment">/// \sa <a href="http://www.weidai.com/scan-mirror/sig.html#DSA-1363">DSA-1363</a></span></div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="comment">/// \since Crypto++ 1.0 for DSA, Crypto++ 5.6.2 for DSA2</span></div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> H></div><div class="line"><a name="l00669"></a><span class="lineno"><a class="line" href="struct_d_s_a___r_f_c6979.html"> 669</a></span> <span class="keyword">struct </span><a class="code" href="struct_d_s_a___r_f_c6979.html">DSA_RFC6979</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___s_s.html">DL_SS</a><</div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  DL_SignatureKeys_GFP,</div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  DL_Algorithm_DSA_RFC6979<Integer, H>,</div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  DL_SignatureMessageEncodingMethod_DSA,</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  H,</div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  DSA_RFC6979<H> ></div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span> {</div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <span class="keyword">static</span> std::string CRYPTOPP_API StaticAlgorithmName() {<span class="keywordflow">return</span> std::string(<span class="stringliteral">"DSA-RFC6979/"</span>) + H::StaticAlgorithmName();}</div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span> };</div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span> <span class="comment"></span></div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span> <span class="comment">/// DSA with SHA-1, typedef'd for backwards compatibility</span></div><div class="line"><a name="l00680"></a><span class="lineno"><a class="line" href="gfpcrypt_8h.html#a0d0e8e200445009c6707c9cbc3ee486c"> 680</a></span> <span class="comment"></span><span class="keyword">typedef</span> <a class="code" href="class_d_s_a2.html">DSA2<SHA1></a> <a class="code" href="gfpcrypt_8h.html#a0d0e8e200445009c6707c9cbc3ee486c">DSA</a>;</div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span> </div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span> CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP<DL_GroupParameters_DSA></a>;</div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span> CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___private_key___g_f_p.html">DL_PrivateKey_GFP<DL_GroupParameters_DSA></a>;</div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span> CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___private_key___with_signature_pairwise_consistency_test.html">DL_PrivateKey_WithSignaturePairwiseConsistencyTest<DL_PrivateKey_GFP<DL_GroupParameters_DSA></a>, <a class="code" href="class_d_s_a2.html">DSA2<SHA1></a> >;</div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span> <span class="comment"></span></div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span> <span class="comment">/// \brief P1363 based XOR Encryption Method</span></div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span> <span class="comment">/// \tparam MAC MessageAuthenticationCode derived class used for MAC computation</span></div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span> <span class="comment">/// \tparam DHAES_MODE flag indicating DHAES mode</span></div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span> <span class="comment">/// \tparam LABEL_OCTETS flag indicating the label is octet count</span></div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span> <span class="comment">/// \details DL_EncryptionAlgorithm_Xor is based on an early P1363 draft, which itself appears to be based on an</span></div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span> <span class="comment">/// early Certicom SEC-1 draft (or an early SEC-1 draft was based on a P1363 draft). Crypto++ 4.2 used it in its Integrated</span></div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span> <span class="comment">/// Ecryption Schemes with <tt>NoCofactorMultiplication</tt>, <tt>DHAES_MODE=false</tt> and <tt>LABEL_OCTETS=true</tt>.</span></div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span> <span class="comment">/// \details If you need this method for Crypto++ 4.2 compatibility, then use the ECIES template class with</span></div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span> <span class="comment">/// <tt>NoCofactorMultiplication</tt>, <tt>DHAES_MODE=false</tt> and <tt>LABEL_OCTETS=true</tt>.</span></div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span> <span class="comment">/// \details If you need this method for Bouncy Castle 1.54 and Botan 1.11 compatibility, then use the ECIES template class with</span></div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span> <span class="comment">/// <tt>NoCofactorMultiplication</tt>, <tt>DHAES_MODE=ture</tt> and <tt>LABEL_OCTETS=false</tt>.</span></div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span> <span class="comment">/// \details Bouncy Castle 1.54 and Botan 1.11 compatibility are the default template parameters.</span></div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span> <span class="comment">/// \since Crypto++ 4.0</span></div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> MAC, <span class="keywordtype">bool</span> DHAES_MODE, <span class="keywordtype">bool</span> LABEL_OCTETS=false></div><div class="line"><a name="l00700"></a><span class="lineno"><a class="line" href="class_d_l___encryption_algorithm___xor.html"> 700</a></span> <span class="keyword">class </span><a class="code" href="class_d_l___encryption_algorithm___xor.html">DL_EncryptionAlgorithm_Xor</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___symmetric_encryption_algorithm.html">DL_SymmetricEncryptionAlgorithm</a></div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span> {</div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___encryption_algorithm___xor.html">DL_EncryptionAlgorithm_Xor</a>() {}</div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span> </div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="keywordtype">bool</span> ParameterSupported(<span class="keyword">const</span> <span class="keywordtype">char</span> *name)<span class="keyword"> const </span>{<span class="keywordflow">return</span> strcmp(name, <a class="code" href="namespace_name.html#abfc2af8f8cc15abc866b9a48478c763f">Name::EncodingParameters</a>()) == 0;}</div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  <span class="keywordtype">size_t</span> GetSymmetricKeyLength(<span class="keywordtype">size_t</span> plaintextLength)<span class="keyword"> const</span></div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span> <span class="keyword"> </span>{<span class="keywordflow">return</span> plaintextLength + static_cast<size_t>(MAC::DIGESTSIZE);}</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  <span class="keywordtype">size_t</span> GetSymmetricCiphertextLength(<span class="keywordtype">size_t</span> plaintextLength)<span class="keyword"> const</span></div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span> <span class="keyword"> </span>{<span class="keywordflow">return</span> plaintextLength + static_cast<size_t>(MAC::DIGESTSIZE);}</div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  <span class="keywordtype">size_t</span> GetMaxSymmetricPlaintextLength(<span class="keywordtype">size_t</span> ciphertextLength)<span class="keyword"> const</span></div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span> <span class="keyword"> </span>{<span class="keywordflow">return</span> <a class="code" href="misc_8h.html#a30712a90999ad9d9152975f2e92d46b8">SaturatingSubtract</a>(ciphertextLength, static_cast<size_t>(MAC::DIGESTSIZE));}</div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  <span class="keywordtype">void</span> SymmetricEncrypt(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, <span class="keyword">const</span> <span class="keywordtype">byte</span> *key, <span class="keyword">const</span> <span class="keywordtype">byte</span> *plaintext, <span class="keywordtype">size_t</span> plaintextLength, <span class="keywordtype">byte</span> *ciphertext, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &parameters)<span class="keyword"> const</span></div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  CRYPTOPP_UNUSED(rng);</div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  <span class="keyword">const</span> <span class="keywordtype">byte</span> *cipherKey = NULLPTR, *macKey = NULLPTR;</div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  <span class="keywordflow">if</span> (DHAES_MODE)</div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  {</div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  macKey = key;</div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  cipherKey = key + MAC::DEFAULT_KEYLENGTH;</div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  }</div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  {</div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  cipherKey = key;</div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  macKey = key + plaintextLength;</div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  }</div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span> </div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <a class="code" href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a> encodingParameters;</div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  parameters.<a class="code" href="class_name_value_pairs.html#a5357c3a09602e44671d1e42cb9a9408d">GetValue</a>(<a class="code" href="namespace_name.html#abfc2af8f8cc15abc866b9a48478c763f">Name::EncodingParameters</a>(), encodingParameters);</div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span> </div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  <span class="keywordflow">if</span> (plaintextLength) <span class="comment">// Coverity finding</span></div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  <a class="code" href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a>(ciphertext, plaintext, cipherKey, plaintextLength);</div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span> </div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  MAC mac(macKey);</div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  mac.Update(ciphertext, plaintextLength);</div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  mac.Update(encodingParameters.<a class="code" href="class_const_byte_array_parameter.html#ab89acc8dae383f2663dd3864651e8ef1">begin</a>(), encodingParameters.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>());</div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <span class="keywordflow">if</span> (DHAES_MODE)</div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  {</div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  <span class="keywordtype">byte</span> L[8];</div><div class="line"><a name="l00739"></a><span class="lineno"> 739</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>, L, (LABEL_OCTETS ? word64(encodingParameters.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>()) : 8 * word64(encodingParameters.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>())));</div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  mac.Update(L, 8);</div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  }</div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  mac.Final(ciphertext + plaintextLength);</div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  }</div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  <a class="code" href="struct_decoding_result.html">DecodingResult</a> SymmetricDecrypt(<span class="keyword">const</span> <span class="keywordtype">byte</span> *key, <span class="keyword">const</span> <span class="keywordtype">byte</span> *ciphertext, <span class="keywordtype">size_t</span> ciphertextLength, <span class="keywordtype">byte</span> *plaintext, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &parameters)<span class="keyword"> const</span></div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  <span class="keywordtype">size_t</span> plaintextLength = GetMaxSymmetricPlaintextLength(ciphertextLength);</div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="keyword">const</span> <span class="keywordtype">byte</span> *cipherKey, *macKey;</div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <span class="keywordflow">if</span> (DHAES_MODE)</div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  {</div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  macKey = key;</div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  cipherKey = key + MAC::DEFAULT_KEYLENGTH;</div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  }</div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  {</div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  cipherKey = key;</div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  macKey = key + plaintextLength;</div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  }</div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span> </div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <a class="code" href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a> encodingParameters;</div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  parameters.<a class="code" href="class_name_value_pairs.html#a5357c3a09602e44671d1e42cb9a9408d">GetValue</a>(<a class="code" href="namespace_name.html#abfc2af8f8cc15abc866b9a48478c763f">Name::EncodingParameters</a>(), encodingParameters);</div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span> </div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  MAC mac(macKey);</div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  mac.Update(ciphertext, plaintextLength);</div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  mac.Update(encodingParameters.<a class="code" href="class_const_byte_array_parameter.html#ab89acc8dae383f2663dd3864651e8ef1">begin</a>(), encodingParameters.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>());</div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  <span class="keywordflow">if</span> (DHAES_MODE)</div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  {</div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  <span class="keywordtype">byte</span> L[8];</div><div class="line"><a name="l00768"></a><span class="lineno"> 768</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>, L, (LABEL_OCTETS ? word64(encodingParameters.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>()) : 8 * word64(encodingParameters.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>())));</div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  mac.Update(L, 8);</div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  }</div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  <span class="keywordflow">if</span> (!mac.Verify(ciphertext + plaintextLength))</div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <span class="keywordflow">return</span> <a class="code" href="struct_decoding_result.html">DecodingResult</a>();</div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span> </div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  <span class="keywordflow">if</span> (plaintextLength) <span class="comment">// Coverity finding</span></div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  <a class="code" href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a>(plaintext, ciphertext, cipherKey, plaintextLength);</div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span> </div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  <span class="keywordflow">return</span> <a class="code" href="struct_decoding_result.html">DecodingResult</a>(plaintextLength);</div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  }</div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span> };</div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span> <span class="comment"></span></div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span> <span class="comment">/// _</span></div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keywordtype">bool</span> DHAES_MODE, <span class="keyword">class</span> KDF></div><div class="line"><a name="l00783"></a><span class="lineno"><a class="line" href="class_d_l___key_derivation_algorithm___p1363.html"> 783</a></span> <span class="keyword">class </span><a class="code" href="class_d_l___key_derivation_algorithm___p1363.html">DL_KeyDerivationAlgorithm_P1363</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___key_derivation_algorithm.html">DL_KeyDerivationAlgorithm</a><T></div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span> {</div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_d_l___key_derivation_algorithm___p1363.html">DL_KeyDerivationAlgorithm_P1363</a>() {}</div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span> </div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  <span class="keywordtype">bool</span> ParameterSupported(<span class="keyword">const</span> <span class="keywordtype">char</span> *name)<span class="keyword"> const </span>{<span class="keywordflow">return</span> strcmp(name, <a class="code" href="namespace_name.html#a95aa7dfa33a469f783c9a988428927e9">Name::KeyDerivationParameters</a>()) == 0;}</div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  <span class="keywordtype">void</span> Derive(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<T></a> &params, <span class="keywordtype">byte</span> *derivedKey, <span class="keywordtype">size_t</span> derivedLength, <span class="keyword">const</span> T &agreedElement, <span class="keyword">const</span> T &ephemeralPublicKey, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &parameters)<span class="keyword"> const</span></div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <a class="code" href="class_sec_byte_block.html">SecByteBlock</a> agreedSecret;</div><div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  <span class="keywordflow">if</span> (DHAES_MODE)</div><div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  {</div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  agreedSecret.<a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">New</a>(params.<a class="code" href="class_d_l___group_parameters.html#a8ef60e89b4f1cc0b72f672c19ed43fc7">GetEncodedElementSize</a>(<span class="keyword">true</span>) + params.<a class="code" href="class_d_l___group_parameters.html#a8ef60e89b4f1cc0b72f672c19ed43fc7">GetEncodedElementSize</a>(<span class="keyword">false</span>));</div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  params.<a class="code" href="class_d_l___group_parameters.html#a71c6058bd5ddcd54bd36565b0ba0cae0">EncodeElement</a>(<span class="keyword">true</span>, ephemeralPublicKey, agreedSecret);</div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  params.<a class="code" href="class_d_l___group_parameters.html#a71c6058bd5ddcd54bd36565b0ba0cae0">EncodeElement</a>(<span class="keyword">false</span>, agreedElement, agreedSecret + params.<a class="code" href="class_d_l___group_parameters.html#a8ef60e89b4f1cc0b72f672c19ed43fc7">GetEncodedElementSize</a>(<span class="keyword">true</span>));</div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  }</div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  {</div><div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  agreedSecret.<a class="code" href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">New</a>(params.<a class="code" href="class_d_l___group_parameters.html#a8ef60e89b4f1cc0b72f672c19ed43fc7">GetEncodedElementSize</a>(<span class="keyword">false</span>));</div><div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  params.<a class="code" href="class_d_l___group_parameters.html#a71c6058bd5ddcd54bd36565b0ba0cae0">EncodeElement</a>(<span class="keyword">false</span>, agreedElement, agreedSecret);</div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  }</div><div class="line"><a name="l00803"></a><span class="lineno"> 803</span> </div><div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  <a class="code" href="class_const_byte_array_parameter.html">ConstByteArrayParameter</a> derivationParameters;</div><div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  parameters.<a class="code" href="class_name_value_pairs.html#a5357c3a09602e44671d1e42cb9a9408d">GetValue</a>(<a class="code" href="namespace_name.html#a95aa7dfa33a469f783c9a988428927e9">Name::KeyDerivationParameters</a>(), derivationParameters);</div><div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  KDF::DeriveKey(derivedKey, derivedLength, agreedSecret, agreedSecret.<a class="code" href="class_sec_block.html#af5999bffe3193e62719cc0792b0282a7">size</a>(), derivationParameters.<a class="code" href="class_const_byte_array_parameter.html#ab89acc8dae383f2663dd3864651e8ef1">begin</a>(), derivationParameters.<a class="code" href="class_const_byte_array_parameter.html#ab83dbf7e4d80c0304917a3cc1d3cf144">size</a>());</div><div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  }</div><div class="line"><a name="l00808"></a><span class="lineno"> 808</span> };</div><div class="line"><a name="l00809"></a><span class="lineno"> 809</span> <span class="comment"></span></div><div class="line"><a name="l00810"></a><span class="lineno"> 810</span> <span class="comment">/// \brief Discrete Log Integrated Encryption Scheme</span></div><div class="line"><a name="l00811"></a><span class="lineno"> 811</span> <span class="comment">/// \tparam COFACTOR_OPTION cofactor multiplication option</span></div><div class="line"><a name="l00812"></a><span class="lineno"> 812</span> <span class="comment">/// \tparam HASH HashTransformation derived class used for key drivation and MAC computation</span></div><div class="line"><a name="l00813"></a><span class="lineno"> 813</span> <span class="comment">/// \tparam DHAES_MODE flag indicating if the MAC includes addition context parameters such as the label</span></div><div class="line"><a name="l00814"></a><span class="lineno"> 814</span> <span class="comment">/// \tparam LABEL_OCTETS flag indicating if the label size is specified in octets or bits</span></div><div class="line"><a name="l00815"></a><span class="lineno"> 815</span> <span class="comment">/// \details DLIES is an Integer based Integrated Encryption Scheme (IES). The scheme combines a Key Encapsulation Method (KEM)</span></div><div class="line"><a name="l00816"></a><span class="lineno"> 816</span> <span class="comment">/// with a Data Encapsulation Method (DEM) and a MAC tag. The scheme is</span></div><div class="line"><a name="l00817"></a><span class="lineno"> 817</span> <span class="comment">/// <A HREF="http://en.wikipedia.org/wiki/ciphertext_indistinguishability">IND-CCA2</A>, which is a strong notion of security.</span></div><div class="line"><a name="l00818"></a><span class="lineno"> 818</span> <span class="comment">/// You should prefer an Integrated Encryption Scheme over homegrown schemes.</span></div><div class="line"><a name="l00819"></a><span class="lineno"> 819</span> <span class="comment">/// \details The library's original implementation is based on an early P1363 draft, which itself appears to be based on an early Certicom</span></div><div class="line"><a name="l00820"></a><span class="lineno"> 820</span> <span class="comment">/// SEC-1 draft (or an early SEC-1 draft was based on a P1363 draft). Crypto++ 4.2 used the early draft in its Integrated Ecryption</span></div><div class="line"><a name="l00821"></a><span class="lineno"> 821</span> <span class="comment">/// Schemes with <tt>NoCofactorMultiplication</tt>, <tt>DHAES_MODE=false</tt> and <tt>LABEL_OCTETS=true</tt>.</span></div><div class="line"><a name="l00822"></a><span class="lineno"> 822</span> <span class="comment">/// \details If you desire an Integrated Encryption Scheme with Crypto++ 4.2 compatibility, then use the DLIES template class with</span></div><div class="line"><a name="l00823"></a><span class="lineno"> 823</span> <span class="comment">/// <tt>NoCofactorMultiplication</tt>, <tt>DHAES_MODE=false</tt> and <tt>LABEL_OCTETS=true</tt>.</span></div><div class="line"><a name="l00824"></a><span class="lineno"> 824</span> <span class="comment">/// \details If you desire an Integrated Encryption Scheme with Bouncy Castle 1.54 and Botan 1.11 compatibility, then use the DLIES</span></div><div class="line"><a name="l00825"></a><span class="lineno"> 825</span> <span class="comment">/// template class with <tt>NoCofactorMultiplication</tt>, <tt>DHAES_MODE=true</tt> and <tt>LABEL_OCTETS=false</tt>.</span></div><div class="line"><a name="l00826"></a><span class="lineno"> 826</span> <span class="comment">/// \details The default template parameters ensure compatibility with Bouncy Castle 1.54 and Botan 1.11. The combination of</span></div><div class="line"><a name="l00827"></a><span class="lineno"> 827</span> <span class="comment">/// <tt>IncompatibleCofactorMultiplication</tt> and <tt>DHAES_MODE=true</tt> is recommended for best efficiency and security.</span></div><div class="line"><a name="l00828"></a><span class="lineno"> 828</span> <span class="comment">/// SHA1 is used for compatibility reasons, but it can be changed if desired. SHA-256 or another hash will likely improve the</span></div><div class="line"><a name="l00829"></a><span class="lineno"> 829</span> <span class="comment">/// security provided by the MAC. The hash is also used in the key derivation function as a PRF.</span></div><div class="line"><a name="l00830"></a><span class="lineno"> 830</span> <span class="comment">/// \details Below is an example of constructing a Crypto++ 4.2 compatible DLIES encryptor and decryptor.</span></div><div class="line"><a name="l00831"></a><span class="lineno"> 831</span> <span class="comment">/// <pre></span></div><div class="line"><a name="l00832"></a><span class="lineno"> 832</span> <span class="comment">/// AutoSeededRandomPool prng;</span></div><div class="line"><a name="l00833"></a><span class="lineno"> 833</span> <span class="comment">/// DL_PrivateKey_GFP<DL_GroupParameters_GFP> key;</span></div><div class="line"><a name="l00834"></a><span class="lineno"> 834</span> <span class="comment">/// key.Initialize(prng, 2048);</span></div><div class="line"><a name="l00835"></a><span class="lineno"> 835</span> <span class="comment">///</span></div><div class="line"><a name="l00836"></a><span class="lineno"> 836</span> <span class="comment">/// DLIES<SHA1,NoCofactorMultiplication,true,true>::Decryptor decryptor(key);</span></div><div class="line"><a name="l00837"></a><span class="lineno"> 837</span> <span class="comment">/// DLIES<SHA1,NoCofactorMultiplication,true,true>::Encryptor encryptor(decryptor);</span></div><div class="line"><a name="l00838"></a><span class="lineno"> 838</span> <span class="comment">/// </pre></span></div><div class="line"><a name="l00839"></a><span class="lineno"> 839</span> <span class="comment">/// \sa ECIES, <a href="http://www.weidai.com/scan-mirror/ca.html#DLIES">Discrete Log Integrated Encryption Scheme (DLIES)</a>,</span></div><div class="line"><a name="l00840"></a><span class="lineno"> 840</span> <span class="comment">/// Martínez, Encinas, and Ávila's <A HREF="http://digital.csic.es/bitstream/10261/32671/1/V2-I2-P7-13.pdf">A Survey of the Elliptic</span></div><div class="line"><a name="l00841"></a><span class="lineno"> 841</span> <span class="comment">/// Curve Integrated Encryption Schemes</A></span></div><div class="line"><a name="l00842"></a><span class="lineno"> 842</span> <span class="comment">/// \since Crypto++ 4.0, Crypto++ 5.7 for Bouncy Castle and Botan compatibility</span></div><div class="line"><a name="l00843"></a><span class="lineno"> 843</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> HASH = SHA1, <span class="keyword">class</span> COFACTOR_OPTION = NoCofactorMultiplication, <span class="keywordtype">bool</span> DHAES_MODE = true, <span class="keywordtype">bool</span> LABEL_OCTETS=false></div><div class="line"><a name="l00844"></a><span class="lineno"><a class="line" href="struct_d_l_i_e_s.html"> 844</a></span> <span class="keyword">struct </span><a class="code" href="struct_d_l_i_e_s.html">DLIES</a></div><div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  : <span class="keyword">public</span> <a class="code" href="class_d_l___e_s.html">DL_ES</a><</div><div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  DL_CryptoKeys_GFP,</div><div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  DL_KeyAgreementAlgorithm_DH<Integer, COFACTOR_OPTION>,</div><div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  DL_KeyDerivationAlgorithm_P1363<Integer, DHAES_MODE, P1363_KDF2<HASH> >,</div><div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  DL_EncryptionAlgorithm_Xor<HMAC<HASH>, DHAES_MODE, LABEL_OCTETS>,</div><div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  DLIES<> ></div><div class="line"><a name="l00851"></a><span class="lineno"> 851</span> {</div><div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  <span class="keyword">static</span> std::string CRYPTOPP_API StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"DLIES"</span>;} <span class="comment">// TODO: fix this after name is standardized</span></div><div class="line"><a name="l00853"></a><span class="lineno"> 853</span> };</div><div class="line"><a name="l00854"></a><span class="lineno"> 854</span> </div><div class="line"><a name="l00855"></a><span class="lineno"> 855</span> NAMESPACE_END</div><div class="line"><a name="l00856"></a><span class="lineno"> 856</span> </div><div class="line"><a name="l00857"></a><span class="lineno"> 857</span> <span class="preprocessor">#if CRYPTOPP_MSC_VERSION</span></div><div class="line"><a name="l00858"></a><span class="lineno"> 858</span> <span class="preprocessor"># pragma warning(pop)</span></div><div class="line"><a name="l00859"></a><span class="lineno"> 859</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00860"></a><span class="lineno"> 860</span> </div><div class="line"><a name="l00861"></a><span class="lineno"> 861</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_d_l___private_key___g_f_p_html_a2783fbb6b0bf3d8984fa639260f9b1f2"><div class="ttname"><a href="class_d_l___private_key___g_f_p.html#a2783fbb6b0bf3d8984fa639260f9b1f2">DL_PrivateKey_GFP::Initialize</a></div><div class="ttdeci">void Initialize(RandomNumberGenerator &rng, const Integer &p, const Integer &q, const Integer &g)</div><div class="ttdoc">Create a private key.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00528">gfpcrypt.h:528</a></div></div>
<div class="ttc" id="struct_d_l_i_e_s_html"><div class="ttname"><a href="struct_d_l_i_e_s.html">DLIES</a></div><div class="ttdoc">Discrete Log Integrated Encryption Scheme.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00844">gfpcrypt.h:844</a></div></div>
<div class="ttc" id="class_a_s_n1_object_html_a10e40187a6ba048dfc8a2c8ca5c6c2ec"><div class="ttname"><a href="class_a_s_n1_object.html#a10e40187a6ba048dfc8a2c8ca5c6c2ec">ASN1Object::DEREncode</a></div><div class="ttdeci">virtual void DEREncode(BufferedTransformation &bt) const =0</div><div class="ttdoc">Encode this object into a BufferedTransformation.</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_d_l___private_key_impl_html_ad2756b046f9ee7f3c254c9fc2bb8be5d"><div class="ttname"><a href="class_d_l___private_key_impl.html#ad2756b046f9ee7f3c254c9fc2bb8be5d">DL_PrivateKeyImpl::SetPrivateExponent</a></div><div class="ttdeci">void SetPrivateExponent(const Integer &x)</div><div class="ttdoc">Sets the private exponent.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01264">pubkey.h:1264</a></div></div>
<div class="ttc" id="misc_8h_html"><div class="ttname"><a href="misc_8h.html">misc.h</a></div><div class="ttdoc">Utility functions for the Crypto++ library.</div></div>
<div class="ttc" id="class_simple_keying_interface_html_adf3c29b3ef3af74788a58c7c49887fd7"><div class="ttname"><a href="class_simple_keying_interface.html#adf3c29b3ef3af74788a58c7c49887fd7">SimpleKeyingInterface::SetKey</a></div><div class="ttdeci">virtual void SetKey(const byte *key, size_t length, const NameValuePairs &params=g_nullNameValuePairs)</div><div class="ttdoc">Sets or reset the key of this object.</div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8cpp_source.html#l00064">cryptlib.cpp:64</a></div></div>
<div class="ttc" id="class_d_l___group_parameters_impl_html_a6d8848121098fc1e59a4148def34d449"><div class="ttname"><a href="class_d_l___group_parameters_impl.html#a6d8848121098fc1e59a4148def34d449">DL_GroupParametersImpl::GetGroupPrecomputation</a></div><div class="ttdeci">const DL_GroupPrecomputation< Element > & GetGroupPrecomputation() const</div><div class="ttdoc">Retrieves the group precomputation.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l00994">pubkey.h:994</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___g_f_p_html"><div class="ttname"><a href="class_d_l___group_parameters___g_f_p.html">DL_GroupParameters_GFP</a></div><div class="ttdoc">GF(p) group parameters.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00156">gfpcrypt.h:156</a></div></div>
<div class="ttc" id="class_d_l___public_key___g_f_p_html_a06b9c78e45b40b6a5bdf3f3bb5a9b806"><div class="ttname"><a href="class_d_l___public_key___g_f_p.html#a06b9c78e45b40b6a5bdf3f3bb5a9b806">DL_PublicKey_GFP::Initialize</a></div><div class="ttdeci">void Initialize(const DL_GroupParameters_IntegerBased &params, const Integer &y)</div><div class="ttdoc">Initialize a public key over GF(p)</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00468">gfpcrypt.h:468</a></div></div>
<div class="ttc" id="class_d_l___private_key___with_signature_pairwise_consistency_test_html"><div class="ttname"><a href="class_d_l___private_key___with_signature_pairwise_consistency_test.html">DL_PrivateKey_WithSignaturePairwiseConsistencyTest</a></div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01277">pubkey.h:1277</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___integer_based_html_a2aa2e513e93ac6110fafa7c26fd6dcd3"><div class="ttname"><a href="class_d_l___group_parameters___integer_based.html#a2aa2e513e93ac6110fafa7c26fd6dcd3">DL_GroupParameters_IntegerBased::GetGroupOrder</a></div><div class="ttdeci">Integer GetGroupOrder() const</div><div class="ttdoc">Retrieves the order of the group.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00080">gfpcrypt.h:80</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="misc_8h_html_a7c5d30b17c9d4869fdc3458dd05c500d"><div class="ttname"><a href="misc_8h.html#a7c5d30b17c9d4869fdc3458dd05c500d">BitsToBytes</a></div><div class="ttdeci">size_t BitsToBytes(size_t bitCount)</div><div class="ttdoc">Returns the number of 8-bit bytes or octets required for the specified number of bits.</div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00790">misc.h:790</a></div></div>
<div class="ttc" id="pubkey_8h_html"><div class="ttname"><a href="pubkey_8h.html">pubkey.h</a></div><div class="ttdoc">This file contains helper classes/functions for implementing public key algorithms.</div></div>
<div class="ttc" id="class_deterministic_signature_algorithm_html"><div class="ttname"><a href="class_deterministic_signature_algorithm.html">DeterministicSignatureAlgorithm</a></div><div class="ttdoc">Interface for deterministic signers.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01419">pubkey.h:1419</a></div></div>
<div class="ttc" id="class_d_l___algorithm___g_d_s_a_html_ab487a0a58eb06bf8133efd360a639075"><div class="ttname"><a href="class_d_l___algorithm___g_d_s_a.html#ab487a0a58eb06bf8133efd360a639075">DL_Algorithm_GDSA::Sign</a></div><div class="ttdeci">void Sign(const DL_GroupParameters< T > &params, const Integer &x, const Integer &k, const Integer &e, Integer &r, Integer &s) const</div><div class="ttdoc">Sign a message using a private key.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00201">gfpcrypt.h:201</a></div></div>
<div class="ttc" id="class_d_l___private_key___g_f_p_html_ad069712f5fa3ce6761d3f24d9c55b97d"><div class="ttname"><a href="class_d_l___private_key___g_f_p.html#ad069712f5fa3ce6761d3f24d9c55b97d">DL_PrivateKey_GFP::Initialize</a></div><div class="ttdeci">void Initialize(RandomNumberGenerator &rng, unsigned int modulusBits)</div><div class="ttdoc">Create a private key.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00507">gfpcrypt.h:507</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___g_f_p_html_a54dfa60d5395860fe44fba4caed231b5"><div class="ttname"><a href="class_d_l___group_parameters___g_f_p.html#a54dfa60d5395860fe44fba4caed231b5">DL_GroupParameters_GFP::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="gfpcrypt_8h_source.html#l00166">gfpcrypt.h:166</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_d_l___group_parameters___integer_based_html_a25973fc93a80e0f199818633d63d205a"><div class="ttname"><a href="class_d_l___group_parameters___integer_based.html#a25973fc93a80e0f199818633d63d205a">DL_GroupParameters_IntegerBased::Initialize</a></div><div class="ttdeci">void Initialize(const Integer &p, const Integer &g)</div><div class="ttdoc">Initialize a group parameters over integers.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00058">gfpcrypt.h:58</a></div></div>
<div class="ttc" id="class_d_l___group_parameters_html"><div class="ttname"><a href="class_d_l___group_parameters.html">DL_GroupParameters< Integer ></a></div></div>
<div class="ttc" id="class_d_l___encryption_algorithm___xor_html"><div class="ttname"><a href="class_d_l___encryption_algorithm___xor.html">DL_EncryptionAlgorithm_Xor</a></div><div class="ttdoc">P1363 based XOR Encryption Method.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00700">gfpcrypt.h:700</a></div></div>
<div class="ttc" id="struct_enum_to_type_html"><div class="ttname"><a href="struct_enum_to_type.html">EnumToType</a></div><div class="ttdoc">Converts an enumeration to a type suitable for use as a template parameter.</div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00132">cryptlib.h:132</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_d_l___group_parameters_html_afb36d983bb45fe3b8acb1767c0060700"><div class="ttname"><a href="class_d_l___group_parameters.html#afb36d983bb45fe3b8acb1767c0060700">DL_GroupParameters::ConvertElementToInteger</a></div><div class="ttdeci">virtual Integer ConvertElementToInteger(const Element &element) const =0</div><div class="ttdoc">Converts an element to an Integer.</div></div>
<div class="ttc" id="class_d_l___group_parameters___g_f_p___default_safe_prime_html"><div class="ttname"><a href="class_d_l___group_parameters___g_f_p___default_safe_prime.html">DL_GroupParameters_GFP_DefaultSafePrime</a></div><div class="ttdoc">GF(p) group parameters that default to safe primes.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00180">gfpcrypt.h:180</a></div></div>
<div class="ttc" id="class_d_l___key_derivation_algorithm_html"><div class="ttname"><a href="class_d_l___key_derivation_algorithm.html">DL_KeyDerivationAlgorithm</a></div><div class="ttdoc">Interface for key derivation algorithms used in DL cryptosystems.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01448">pubkey.h:1448</a></div></div>
<div class="ttc" id="smartptr_8h_html"><div class="ttname"><a href="smartptr_8h.html">smartptr.h</a></div><div class="ttdoc">Classes for automatic resource management.</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="struct_d_l___keys___d_s_a_html"><div class="ttname"><a href="struct_d_l___keys___d_s_a.html">DL_Keys_DSA</a></div><div class="ttdoc">DSA keys.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00623">gfpcrypt.h:623</a></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_d_l___group_parameters___integer_based_html_a2ea22939c10623a4b76167a538ca7c76"><div class="ttname"><a href="class_d_l___group_parameters___integer_based.html#a2ea22939c10623a4b76167a538ca7c76">DL_GroupParameters_IntegerBased::Initialize</a></div><div class="ttdeci">void Initialize(RandomNumberGenerator &rng, unsigned int pbits)</div><div class="ttdoc">Create a group parameters over integers.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00052">gfpcrypt.h:52</a></div></div>
<div class="ttc" id="class_sec_block_html_a90d46e577c951d81a2d25a4742a3e979"><div class="ttname"><a href="class_sec_block.html#a90d46e577c951d81a2d25a4742a3e979">SecBlock::New</a></div><div class="ttdeci">void New(size_type newSize)</div><div class="ttdoc">Change size without preserving contents.</div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00729">secblock.h:729</a></div></div>
<div class="ttc" id="class_integer_html_af805574831ce19221692966e6217e6e0"><div class="ttname"><a href="class_integer.html#af805574831ce19221692966e6217e6e0">Integer::InverseMod</a></div><div class="ttdeci">Integer InverseMod(const Integer &n) const</div><div class="ttdoc">Calculate multiplicative inverse.</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l04386">integer.cpp:4386</a></div></div>
<div class="ttc" id="class_d_l___e_s_html"><div class="ttname"><a href="class_d_l___e_s.html">DL_ES</a></div><div class="ttdoc">Discrete Log (DL) encryption scheme.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l02305">pubkey.h:2305</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_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="struct_g_d_s_a_html"><div class="ttname"><a href="struct_g_d_s_a.html">GDSA</a></div><div class="ttdoc">DSA signature scheme.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00578">gfpcrypt.h:578</a></div></div>
<div class="ttc" id="class_d_l___group_parameters_html_ae5bf9692b8879e0ed5ad7e16a696818d"><div class="ttname"><a href="class_d_l___group_parameters.html#ae5bf9692b8879e0ed5ad7e16a696818d">DL_GroupParameters::ExponentiateBase</a></div><div class="ttdeci">virtual Element ExponentiateBase(const Integer &exponent) const</div><div class="ttdoc">Exponentiates the base.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l00839">pubkey.h:839</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="asn_8h_html_ab065716a8772762f9e717705901aa924"><div class="ttname"><a href="asn_8h.html#ab065716a8772762f9e717705901aa924">operator==</a></div><div class="ttdeci">bool operator==(const OID &lhs, const OID &rhs)</div><div class="ttdoc">Compare two OIDs for equality.</div></div>
<div class="ttc" id="class_d_l___group_parameters___integer_based_html_abe42dee24455ea7aac8edee78012cbad"><div class="ttname"><a href="class_d_l___group_parameters___integer_based.html#abe42dee24455ea7aac8edee78012cbad">DL_GroupParameters_IntegerBased::ValidateGroup</a></div><div class="ttdeci">bool ValidateGroup(RandomNumberGenerator &rng, unsigned int level) const</div><div class="ttdoc">Check the group for errors.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8cpp_source.html#l00133">gfpcrypt.cpp:133</a></div></div>
<div class="ttc" id="class_d_l___public_key_html"><div class="ttname"><a href="class_d_l___public_key.html">DL_PublicKey</a></div><div class="ttdoc">Interface for Discrete Log (DL) public keys.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01028">pubkey.h:1028</a></div></div>
<div class="ttc" id="class_d_l___public_key___g_f_p_html_a522a9be5d350b0fce865e99e4045db01"><div class="ttname"><a href="class_d_l___public_key___g_f_p.html#a522a9be5d350b0fce865e99e4045db01">DL_PublicKey_GFP::DEREncodePublicKey</a></div><div class="ttdeci">void DEREncodePublicKey(BufferedTransformation &bt) const</div><div class="ttdoc">encode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00489">gfpcrypt.h:489</a></div></div>
<div class="ttc" id="class_d_l___public_key_html_a86cac45fc0ddaf07c057061b93cd8ce1"><div class="ttname"><a href="class_d_l___public_key.html#a86cac45fc0ddaf07c057061b93cd8ce1">DL_PublicKey< GP::Element >::SetPublicElement</a></div><div class="ttdeci">virtual void SetPublicElement(const Element &y)</div><div class="ttdoc">Sets the public element.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01063">pubkey.h:1063</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___integer_based_html_ac55789bf312e004b6d7d67ec3124ec7e"><div class="ttname"><a href="class_d_l___group_parameters___integer_based.html#ac55789bf312e004b6d7d67ec3124ec7e">DL_GroupParameters_IntegerBased::Initialize</a></div><div class="ttdeci">void Initialize(const Integer &p, const Integer &q, const Integer &g)</div><div class="ttdoc">Initialize a group parameters over integers.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00065">gfpcrypt.h:65</a></div></div>
<div class="ttc" id="class_d_l___s_s_html"><div class="ttname"><a href="class_d_l___s_s.html">DL_SS</a></div><div class="ttdoc">Discrete Log (DL) signature scheme.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l02282">pubkey.h:2282</a></div></div>
<div class="ttc" id="class_d_l___private_key___g_f_p_html_aa9a70c3bbfed80f78b2303f78c5cc65f"><div class="ttname"><a href="class_d_l___private_key___g_f_p.html#aa9a70c3bbfed80f78b2303f78c5cc65f">DL_PrivateKey_GFP::Initialize</a></div><div class="ttdeci">void Initialize(RandomNumberGenerator &rng, const Integer &p, const Integer &g)</div><div class="ttdoc">Create a private key.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00517">gfpcrypt.h:517</a></div></div>
<div class="ttc" id="class_integer_html_ae7ee3f1bbea2b3138c6d8f1ce1aa2bf9"><div class="ttname"><a href="class_integer.html#ae7ee3f1bbea2b3138c6d8f1ce1aa2bf9">Integer::ByteCount</a></div><div class="ttdeci">unsigned int ByteCount() const</div><div class="ttdoc">Determines the number of bytes required to represent the Integer.</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l03310">integer.cpp:3310</a></div></div>
<div class="ttc" id="asn_8h_html_acb32287cdfa32ecdb0a048aceb283f7d"><div class="ttname"><a href="asn_8h.html#acb32287cdfa32ecdb0a048aceb283f7d">operator!=</a></div><div class="ttdeci">bool operator!=(const OID &lhs, const OID &rhs)</div><div class="ttdoc">Compare two OIDs for inequality.</div></div>
<div class="ttc" id="class_d_l___algorithm___g_d_s_a___i_s_o15946_html_a0b48dfce923265d593cf52d8e797f4f9"><div class="ttname"><a href="class_d_l___algorithm___g_d_s_a___i_s_o15946.html#a0b48dfce923265d593cf52d8e797f4f9">DL_Algorithm_GDSA_ISO15946::Sign</a></div><div class="ttdeci">void Sign(const DL_GroupParameters< T > &params, const Integer &x, const Integer &k, const Integer &e, Integer &r, Integer &s) const</div><div class="ttdoc">Sign a message using a private key.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00396">gfpcrypt.h:396</a></div></div>
<div class="ttc" id="class_integer_html_a82bf50f0f9011b2285cd13f181f04a5c"><div class="ttname"><a href="class_integer.html#a82bf50f0f9011b2285cd13f181f04a5c">Integer::MinEncodedSize</a></div><div class="ttdeci">size_t MinEncodedSize(Signedness sign=UNSIGNED) const</div><div class="ttdoc">Minimum number of bytes to encode this integer.</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l03367">integer.cpp:3367</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___integer_based_impl_html_aa6f498af673543a7569d67e1c874e90c"><div class="ttname"><a href="class_d_l___group_parameters___integer_based_impl.html#aa6f498af673543a7569d67e1c874e90c">DL_GroupParameters_IntegerBasedImpl::AccessBasePrecomputation</a></div><div class="ttdeci">DL_FixedBasePrecomputation< Element > & AccessBasePrecomputation()</div><div class="ttdoc">Retrieves the group precomputation.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00137">gfpcrypt.h:137</a></div></div>
<div class="ttc" id="struct_decoding_result_html"><div class="ttname"><a href="struct_decoding_result.html">DecodingResult</a></div><div class="ttdoc">Returns a decoding results.</div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00252">cryptlib.h:252</a></div></div>
<div class="ttc" id="class_d_l___private_key_impl_html"><div class="ttname"><a href="class_d_l___private_key_impl.html">DL_PrivateKeyImpl</a></div><div class="ttdoc">Discrete Log (DL) private key base implementation.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01208">pubkey.h:1208</a></div></div>
<div class="ttc" id="gfpcrypt_8h_html_a0d0e8e200445009c6707c9cbc3ee486c"><div class="ttname"><a href="gfpcrypt_8h.html#a0d0e8e200445009c6707c9cbc3ee486c">DSA</a></div><div class="ttdeci">DSA2< SHA1 > DSA</div><div class="ttdoc">DSA with SHA-1, typedef'd for backwards compatibility.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00680">gfpcrypt.h:680</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_d_s_a2_html"><div class="ttname"><a href="class_d_s_a2.html">DSA2</a></div><div class="ttdoc">DSA signature scheme.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00619">gfpcrypt.h:619</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="class_d_l___group_parameters___integer_based_html_a7b5abc19e80f89d78e102de62a35f7f6"><div class="ttname"><a href="class_d_l___group_parameters___integer_based.html#a7b5abc19e80f89d78e102de62a35f7f6">DL_GroupParameters_IntegerBased::ConvertElementToInteger</a></div><div class="ttdeci">Integer ConvertElementToInteger(const Element &element) const</div><div class="ttdoc">Converts an element to an Integer.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00090">gfpcrypt.h:90</a></div></div>
<div class="ttc" id="class_d_l___elgamal_like_signature_algorithm_html"><div class="ttname"><a href="class_d_l___elgamal_like_signature_algorithm.html">DL_ElgamalLikeSignatureAlgorithm</a></div><div class="ttdoc">Interface for Elgamal-like signature algorithms.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01366">pubkey.h:1366</a></div></div>
<div class="ttc" id="class_a_s_n1_object_html_a430af8c994bc78d996067247fa5a0770"><div class="ttname"><a href="class_a_s_n1_object.html#a430af8c994bc78d996067247fa5a0770">ASN1Object::BERDecode</a></div><div class="ttdeci">virtual void BERDecode(BufferedTransformation &bt)=0</div><div class="ttdoc">Decode this object from a BufferedTransformation.</div></div>
<div class="ttc" id="class_d_l___public_key___g_f_p_html_a3488c76b9b7aa9b78ef83bc30b546c6d"><div class="ttname"><a href="class_d_l___public_key___g_f_p.html#a3488c76b9b7aa9b78ef83bc30b546c6d">DL_PublicKey_GFP::Initialize</a></div><div class="ttdeci">void Initialize(const Integer &p, const Integer &g, const Integer &y)</div><div class="ttdoc">Initialize a public key over GF(p)</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00475">gfpcrypt.h:475</a></div></div>
<div class="ttc" id="namespace_name_html_abfc2af8f8cc15abc866b9a48478c763f"><div class="ttname"><a href="namespace_name.html#abfc2af8f8cc15abc866b9a48478c763f">Name::EncodingParameters</a></div><div class="ttdeci">const char * EncodingParameters()</div><div class="ttdoc">ConstByteArrayParameter.</div><div class="ttdef"><b>Definition:</b> <a href="argnames_8h_source.html#l00066">argnames.h:66</a></div></div>
<div class="ttc" id="struct_d_l___signature_keys___g_f_p_html"><div class="ttname"><a href="struct_d_l___signature_keys___g_f_p.html">DL_SignatureKeys_GFP</a></div><div class="ttdoc">Discrete Log (DL) signing/verification keys in GF(p) groups.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00558">gfpcrypt.h:558</a></div></div>
<div class="ttc" id="struct_d_s_a___r_f_c6979_html"><div class="ttname"><a href="struct_d_s_a___r_f_c6979.html">DSA_RFC6979</a></div><div class="ttdoc">DSA deterministic signature scheme.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00669">gfpcrypt.h:669</a></div></div>
<div class="ttc" id="class_d_l___group_parameters_html_ac11607926a66ce8ba8ae273a5b0464e7"><div class="ttname"><a href="class_d_l___group_parameters.html#ac11607926a66ce8ba8ae273a5b0464e7">DL_GroupParameters< Integer >::SimultaneousExponentiate</a></div><div class="ttdeci">virtual void SimultaneousExponentiate(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const=0</div><div class="ttdoc">Exponentiates a base to multiple exponents.</div></div>
<div class="ttc" id="class_d_l___group_parameters_html_a8537f155cb10263bf7014ad676d1c70b"><div class="ttname"><a href="class_d_l___group_parameters.html#a8537f155cb10263bf7014ad676d1c70b">DL_GroupParameters::GetSubgroupGenerator</a></div><div class="ttdeci">virtual const Element & GetSubgroupGenerator() const</div><div class="ttdoc">Retrieves the subgroup generator.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l00829">pubkey.h:829</a></div></div>
<div class="ttc" id="struct_d_l___crypto_keys___g_f_p_html"><div class="ttname"><a href="struct_d_l___crypto_keys___g_f_p.html">DL_CryptoKeys_GFP</a></div><div class="ttdoc">Discrete Log (DL) encryption/decryption keys in GF(p) groups.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00566">gfpcrypt.h:566</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="struct_n_r_html"><div class="ttname"><a href="struct_n_r.html">NR</a></div><div class="ttdoc">NR signature scheme.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00590">gfpcrypt.h:590</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="misc_8h_html_a30712a90999ad9d9152975f2e92d46b8"><div class="ttname"><a href="misc_8h.html#a30712a90999ad9d9152975f2e92d46b8">SaturatingSubtract</a></div><div class="ttdeci">T1 SaturatingSubtract(const T1 &a, const T2 &b)</div><div class="ttdoc">Performs a saturating subtract clamped at 0.</div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00890">misc.h:890</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___integer_based_impl_html"><div class="ttname"><a href="class_d_l___group_parameters___integer_based_impl.html">DL_GroupParameters_IntegerBasedImpl</a></div><div class="ttdoc">Integer-based GroupParameters default implementation.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00119">gfpcrypt.h:119</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___integer_based_impl_html_a3f87996b08487e46f26d2915881c10c9"><div class="ttname"><a href="class_d_l___group_parameters___integer_based_impl.html#a3f87996b08487e46f26d2915881c10c9">DL_GroupParameters_IntegerBasedImpl::GetBasePrecomputation</a></div><div class="ttdeci">const DL_FixedBasePrecomputation< Element > & GetBasePrecomputation() const</div><div class="ttdoc">Retrieves the group precomputation.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00136">gfpcrypt.h:136</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___g_f_p_html_a650fb0b1e1cf5fd895384cf38a2b1357"><div class="ttname"><a href="class_d_l___group_parameters___g_f_p.html#a650fb0b1e1cf5fd895384cf38a2b1357">DL_GroupParameters_GFP::IsIdentity</a></div><div class="ttdeci">bool IsIdentity(const Integer &element) const</div><div class="ttdoc">Determines if an element is an identity.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00162">gfpcrypt.h:162</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___integer_based_html_a8c9a79c493a215ca37408bb7ddfb5533"><div class="ttname"><a href="class_d_l___group_parameters___integer_based.html#a8c9a79c493a215ca37408bb7ddfb5533">DL_GroupParameters_IntegerBased::GenerateRandom</a></div><div class="ttdeci">void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8cpp_source.html#l00204">gfpcrypt.cpp:204</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="class_d_l___algorithm___d_s_a___r_f_c6979_html_ab58c98659b96786f1c8a823f0f251aee"><div class="ttname"><a href="class_d_l___algorithm___d_s_a___r_f_c6979.html#ab58c98659b96786f1c8a823f0f251aee">DL_Algorithm_DSA_RFC6979::IsDeterministic</a></div><div class="ttdeci">bool IsDeterministic() const</div><div class="ttdoc">Signature scheme flag.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00240">gfpcrypt.h:240</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_h_m_a_c___base_html_a5454c1446981ddee322b0521c6ebd375"><div class="ttname"><a href="class_h_m_a_c___base.html#a5454c1446981ddee322b0521c6ebd375">HMAC_Base::TruncatedFinal</a></div><div class="ttdeci">void TruncatedFinal(byte *mac, size_t size)</div><div class="ttdoc">Computes the hash of the current message.</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8cpp_source.html#l00067">hmac.cpp:67</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___d_s_a_html"><div class="ttname"><a href="class_d_l___group_parameters___d_s_a.html">DL_GroupParameters_DSA</a></div><div class="ttdoc">DSA group parameters.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00601">gfpcrypt.h:601</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="class_d_l___fixed_base_precomputation_html"><div class="ttname"><a href="class_d_l___fixed_base_precomputation.html">DL_FixedBasePrecomputation< Integer ></a></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_d_l___private_key___g_f_p_html_ad81584c72391752ad51900e846bcca63"><div class="ttname"><a href="class_d_l___private_key___g_f_p.html#ad81584c72391752ad51900e846bcca63">DL_PrivateKey_GFP::Initialize</a></div><div class="ttdeci">void Initialize(const Integer &p, const Integer &q, const Integer &g, const Integer &x)</div><div class="ttdoc">Initialize a private key over GF(p)</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00549">gfpcrypt.h:549</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___integer_based_html_ac0a0277c8d9d397cc30722aac33ad1b6"><div class="ttname"><a href="class_d_l___group_parameters___integer_based.html#ac0a0277c8d9d397cc30722aac33ad1b6">DL_GroupParameters_IntegerBased::Initialize</a></div><div class="ttdeci">void Initialize(const DL_GroupParameters_IntegerBased &params)</div><div class="ttdoc">Initialize a group parameters over integers.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00043">gfpcrypt.h:43</a></div></div>
<div class="ttc" id="class_d_l___key_derivation_algorithm___p1363_html"><div class="ttname"><a href="class_d_l___key_derivation_algorithm___p1363.html">DL_KeyDerivationAlgorithm_P1363</a></div><div class="ttdoc">_</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00783">gfpcrypt.h:783</a></div></div>
<div class="ttc" id="class_d_l___public_key___g_f_p_html"><div class="ttname"><a href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP</a></div><div class="ttdoc">Discrete Log (DL) public key in GF(p) groups.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00460">gfpcrypt.h:460</a></div></div>
<div class="ttc" id="class_sec_block_html_a11a05906688172579cd3520816799446"><div class="ttname"><a href="class_sec_block.html#a11a05906688172579cd3520816799446">SecBlock::begin</a></div><div class="ttdeci">iterator begin()</div><div class="ttdoc">Provides an iterator pointing to the first element in the memory block.</div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00536">secblock.h:536</a></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="class_d_l___public_key_html_ac9f9cdb455c4a859e50d202f67008cb8"><div class="ttname"><a href="class_d_l___public_key.html#ac9f9cdb455c4a859e50d202f67008cb8">DL_PublicKey::CascadeExponentiateBaseAndPublicElement</a></div><div class="ttdeci">virtual Element CascadeExponentiateBaseAndPublicElement(const Integer &baseExp, const Integer &publicExp) const</div><div class="ttdoc">Exponentiates an element.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01080">pubkey.h:1080</a></div></div>
<div class="ttc" id="class_d_l___algorithm___d_s_a___r_f_c6979_html"><div class="ttname"><a href="class_d_l___algorithm___d_s_a___r_f_c6979.html">DL_Algorithm_DSA_RFC6979</a></div><div class="ttdoc">DSA signature algorithm based on RFC 6979.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00231">gfpcrypt.h:231</a></div></div>
<div class="ttc" id="class_integer_html_af7f7a3d1250efd10d84d51ba53297535"><div class="ttname"><a href="class_integer.html#af7f7a3d1250efd10d84d51ba53297535">Integer::Encode</a></div><div class="ttdeci">void Encode(byte *output, size_t outputLen, Signedness sign=UNSIGNED) const</div><div class="ttdoc">Encode in big-endian format.</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cpp_source.html#l03383">integer.cpp:3383</a></div></div>
<div class="ttc" id="class_d_l___algorithm___n_r_html_a1751a1111a3dc80e289eb522fc752747"><div class="ttname"><a href="class_d_l___algorithm___n_r.html#a1751a1111a3dc80e289eb522fc752747">DL_Algorithm_NR::Verify</a></div><div class="ttdeci">bool Verify(const DL_GroupParameters< T > &params, const DL_PublicKey< T > &publicKey, const Integer &e, const Integer &r, const Integer &s) const</div><div class="ttdoc">Verify a message using a public key.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00445">gfpcrypt.h:445</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< H ></a></div></div>
<div class="ttc" id="class_d_l___algorithm___g_d_s_a_html_aa88f8827bab1adc8d61a2ba4f87941e7"><div class="ttname"><a href="class_d_l___algorithm___g_d_s_a.html#aa88f8827bab1adc8d61a2ba4f87941e7">DL_Algorithm_GDSA::Verify</a></div><div class="ttdeci">bool Verify(const DL_GroupParameters< T > &params, const DL_PublicKey< T > &publicKey, const Integer &e, const Integer &r, const Integer &s) const</div><div class="ttdoc">Verify a message using a public key.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00210">gfpcrypt.h:210</a></div></div>
<div class="ttc" id="class_d_l___private_key___g_f_p_html"><div class="ttname"><a href="class_d_l___private_key___g_f_p.html">DL_PrivateKey_GFP</a></div><div class="ttdoc">Discrete Log (DL) private key in GF(p) groups.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00496">gfpcrypt.h:496</a></div></div>
<div class="ttc" id="class_d_l___algorithm___g_d_s_a_html"><div class="ttname"><a href="class_d_l___algorithm___g_d_s_a.html">DL_Algorithm_GDSA</a></div><div class="ttdoc">GDSA algorithm.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00194">gfpcrypt.h:194</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="class_d_l___private_key___g_f_p_html_af4fe22ddafeaf3f9c1ca455fe865ea02"><div class="ttname"><a href="class_d_l___private_key___g_f_p.html#af4fe22ddafeaf3f9c1ca455fe865ea02">DL_PrivateKey_GFP::Initialize</a></div><div class="ttdeci">void Initialize(const DL_GroupParameters_IntegerBased &params, const Integer &x)</div><div class="ttdoc">Initialize a private key over GF(p)</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00534">gfpcrypt.h:534</a></div></div>
<div class="ttc" id="class_d_l___algorithm___d_s_a___r_f_c6979_html_a4138d1f4d6c58e4465448c8e283b0d7f"><div class="ttname"><a href="class_d_l___algorithm___d_s_a___r_f_c6979.html#a4138d1f4d6c58e4465448c8e283b0d7f">DL_Algorithm_DSA_RFC6979::GenerateRandom</a></div><div class="ttdeci">Integer GenerateRandom(const Integer &x, const Integer &q, const Integer &e) const</div><div class="ttdoc">Generate k.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00244">gfpcrypt.h:244</a></div></div>
<div class="ttc" id="class_d_l___group_parameters_html_a71c6058bd5ddcd54bd36565b0ba0cae0"><div class="ttname"><a href="class_d_l___group_parameters.html#a71c6058bd5ddcd54bd36565b0ba0cae0">DL_GroupParameters::EncodeElement</a></div><div class="ttdeci">virtual void EncodeElement(bool reversible, const Element &element, byte *encoded) const =0</div><div class="ttdoc">Encodes the element.</div></div>
<div class="ttc" id="class_d_l___group_parameters_html_a8ef60e89b4f1cc0b72f672c19ed43fc7"><div class="ttname"><a href="class_d_l___group_parameters.html#a8ef60e89b4f1cc0b72f672c19ed43fc7">DL_GroupParameters::GetEncodedElementSize</a></div><div class="ttdeci">virtual unsigned int GetEncodedElementSize(bool reversible) const =0</div><div class="ttdoc">Retrieves the encoded element's size.</div></div>
<div class="ttc" id="class_generatable_crypto_material_html_a38d492343c32e530a5c2781b5797f755"><div class="ttname"><a href="class_generatable_crypto_material.html#a38d492343c32e530a5c2781b5797f755">GeneratableCryptoMaterial::GenerateRandomWithKeySize</a></div><div class="ttdeci">void GenerateRandomWithKeySize(RandomNumberGenerator &rng, unsigned int keySize)</div><div class="ttdoc">Generate a random key or crypto parameters.</div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8cpp_source.html#l00817">cryptlib.cpp:817</a></div></div>
<div class="ttc" id="class_d_l___algorithm___n_r_html"><div class="ttname"><a href="class_d_l___algorithm___n_r.html">DL_Algorithm_NR</a></div><div class="ttdoc">NR algorithm.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00430">gfpcrypt.h:430</a></div></div>
<div class="ttc" id="class_d_l___public_key_impl_html"><div class="ttname"><a href="class_d_l___public_key_impl.html">DL_PublicKeyImpl</a></div><div class="ttdoc">Discrete Log (DL) public key base implementation.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01298">pubkey.h:1298</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___integer_based_impl_html_a0d668d2148cf57078a93f3a5a4b4ac2a"><div class="ttname"><a href="class_d_l___group_parameters___integer_based_impl.html#a0d668d2148cf57078a93f3a5a4b4ac2a">DL_GroupParameters_IntegerBasedImpl::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="gfpcrypt_8h_source.html#l00132">gfpcrypt.h:132</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_d_l___group_parameters___integer_based_html_ae6eb7fd2937f5eee9740d0db173f0475"><div class="ttname"><a href="class_d_l___group_parameters___integer_based.html#ae6eb7fd2937f5eee9740d0db173f0475">DL_GroupParameters_IntegerBased::GetSubgroupOrder</a></div><div class="ttdeci">const Integer & GetSubgroupOrder() const</div><div class="ttdoc">Retrieves the subgroup order.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00079">gfpcrypt.h:79</a></div></div>
<div class="ttc" id="misc_8h_html_af1490597cb11989e78d5ba5b5f21266b"><div class="ttname"><a href="misc_8h.html#af1490597cb11989e78d5ba5b5f21266b">STDMAX</a></div><div class="ttdeci">const T & STDMAX(const T &a, const T &b)</div><div class="ttdoc">Replacement function for std::max.</div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00518">misc.h:518</a></div></div>
<div class="ttc" id="namespace_name_html_a95aa7dfa33a469f783c9a988428927e9"><div class="ttname"><a href="namespace_name.html#a95aa7dfa33a469f783c9a988428927e9">Name::KeyDerivationParameters</a></div><div class="ttdeci">const char * KeyDerivationParameters()</div><div class="ttdoc">ConstByteArrayParameter.</div><div class="ttdef"><b>Definition:</b> <a href="argnames_8h_source.html#l00067">argnames.h:67</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_d_l___public_key_html_ab748086e14a92416ff49183f81f777c4"><div class="ttname"><a href="class_d_l___public_key.html#ab748086e14a92416ff49183f81f777c4">DL_PublicKey< GP::Element >::GetPublicElement</a></div><div class="ttdeci">virtual const Element & GetPublicElement() const</div><div class="ttdoc">Retrieves the public element.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01059">pubkey.h:1059</a></div></div>
<div class="ttc" id="class_d_l___symmetric_encryption_algorithm_html"><div class="ttname"><a href="class_d_l___symmetric_encryption_algorithm.html">DL_SymmetricEncryptionAlgorithm</a></div><div class="ttdoc">Interface for symmetric encryption algorithms used in DL cryptosystems.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01459">pubkey.h:1459</a></div></div>
<div class="ttc" id="class_d_l___group_parameters_impl_html"><div class="ttname"><a href="class_d_l___group_parameters_impl.html">DL_GroupParametersImpl</a></div><div class="ttdoc">Base implementation of Discrete Log (DL) group parameters.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l00983">pubkey.h:983</a></div></div>
<div class="ttc" id="class_d_l___private_key_impl_html_ab80a3771a5ef623677775f7c5dddb1e0"><div class="ttname"><a href="class_d_l___private_key_impl.html#ab80a3771a5ef623677775f7c5dddb1e0">DL_PrivateKeyImpl::GenerateRandom</a></div><div class="ttdeci">void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &params)</div><div class="ttdoc">Generate a random key or crypto parameters.</div><div class="ttdef"><b>Definition:</b> <a href="pubkey_8h_source.html#l01239">pubkey.h:1239</a></div></div>
<div class="ttc" id="class_d_l___public_key___g_f_p_html_a9776ea4e0c4629e9e699145e0cf20d36"><div class="ttname"><a href="class_d_l___public_key___g_f_p.html#a9776ea4e0c4629e9e699145e0cf20d36">DL_PublicKey_GFP::BERDecodePublicKey</a></div><div class="ttdeci">void BERDecodePublicKey(BufferedTransformation &bt, bool, size_t)</div><div class="ttdoc">decode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00487">gfpcrypt.h:487</a></div></div>
<div class="ttc" id="class_d_l___algorithm___n_r_html_a8d581a1b4a90f9ccb033f04551df3b51"><div class="ttname"><a href="class_d_l___algorithm___n_r.html#a8d581a1b4a90f9ccb033f04551df3b51">DL_Algorithm_NR::Sign</a></div><div class="ttdeci">void Sign(const DL_GroupParameters< T > &params, const Integer &x, const Integer &k, const Integer &e, Integer &r, Integer &s) const</div><div class="ttdoc">Sign a message using a private key.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00437">gfpcrypt.h:437</a></div></div>
<div class="ttc" id="class_d_l___algorithm___g_d_s_a___i_s_o15946_html"><div class="ttname"><a href="class_d_l___algorithm___g_d_s_a___i_s_o15946.html">DL_Algorithm_GDSA_ISO15946</a></div><div class="ttdoc">German Digital Signature Algorithm.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00389">gfpcrypt.h:389</a></div></div>
<div class="ttc" id="class_d_l___public_key___g_f_p_html_adf536d6b1f23579db94bf563b8af45eb"><div class="ttname"><a href="class_d_l___public_key___g_f_p.html#adf536d6b1f23579db94bf563b8af45eb">DL_PublicKey_GFP::Initialize</a></div><div class="ttdeci">void Initialize(const Integer &p, const Integer &q, const Integer &g, const Integer &y)</div><div class="ttdoc">Initialize a public key over GF(p)</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00483">gfpcrypt.h:483</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___integer_based_html"><div class="ttname"><a href="class_d_l___group_parameters___integer_based.html">DL_GroupParameters_IntegerBased</a></div><div class="ttdoc">Integer-based GroupParameters specialization.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00034">gfpcrypt.h:34</a></div></div>
<div class="ttc" id="class_a_s_n1_crypto_material_html"><div class="ttname"><a href="class_a_s_n1_crypto_material.html">ASN1CryptoMaterial</a></div><div class="ttdoc">Encode and decode ASN.1 objects with additional information.</div><div class="ttdef"><b>Definition:</b> <a href="asn_8h_source.html#l00376">asn.h:376</a></div></div>
<div class="ttc" id="class_d_l___private_key___g_f_p_html_ae104770a2623183d9b7acd0147322532"><div class="ttname"><a href="class_d_l___private_key___g_f_p.html#ae104770a2623183d9b7acd0147322532">DL_PrivateKey_GFP::Initialize</a></div><div class="ttdeci">void Initialize(const Integer &p, const Integer &g, const Integer &x)</div><div class="ttdoc">Initialize a private key over GF(p)</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00541">gfpcrypt.h:541</a></div></div>
<div class="ttc" id="class_o_i_d_html"><div class="ttname"><a href="class_o_i_d.html">OID</a></div><div class="ttdoc">Object Identifier.</div><div class="ttdef"><b>Definition:</b> <a href="asn_8h_source.html#l00166">asn.h:166</a></div></div>
<div class="ttc" id="class_d_l___group_parameters___integer_based_impl_html_aa1ffeb20e890b31c3c3da0130bd73d46"><div class="ttname"><a href="class_d_l___group_parameters___integer_based_impl.html#aa1ffeb20e890b31c3c3da0130bd73d46">DL_GroupParameters_IntegerBasedImpl::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="gfpcrypt_8h_source.html#l00129">gfpcrypt.h:129</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_d_l___algorithm___g_d_s_a___i_s_o15946_html_ac2cf143d1bee155ee46c3f90a869e87b"><div class="ttname"><a href="class_d_l___algorithm___g_d_s_a___i_s_o15946.html#ac2cf143d1bee155ee46c3f90a869e87b">DL_Algorithm_GDSA_ISO15946::Verify</a></div><div class="ttdeci">bool Verify(const DL_GroupParameters< T > &params, const DL_PublicKey< T > &publicKey, const Integer &e, const Integer &r, const Integer &s) const</div><div class="ttdoc">Verify a message using a public key.</div><div class="ttdef"><b>Definition:</b> <a href="gfpcrypt_8h_source.html#l00406">gfpcrypt.h:406</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_d_l___group_parameters_html_aeff4e59562d2c9b0ffc6b677e8ce409a"><div class="ttname"><a href="class_d_l___group_parameters.html#aeff4e59562d2c9b0ffc6b677e8ce409a">DL_GroupParameters::GetSubgroupOrder</a></div><div class="ttdeci">virtual const Integer & GetSubgroupOrder() const =0</div><div class="ttdoc">Retrieves the subgroup order.</div></div>
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