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<a href="blake2_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">// blake2.h - written and placed in the public domain by Jeffrey Walton and Zooko</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Wilcox-O'Hearn. Based on Aumasson, Neves, Wilcox-O'Hearn and Winnerlein's</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// reference BLAKE2 implementation at http://github.com/BLAKE2/BLAKE2.</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 blake2.h</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">/// \brief Classes for BLAKE2b and BLAKE2s message digests and keyed message digests</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">/// \details This implementation follows Aumasson, Neves, Wilcox-O'Hearn and Winnerlein's</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">/// <A HREF="http://blake2.net/blake2.pdf">BLAKE2: simpler, smaller, fast as MD5</A> (2013.01.29).</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">/// Static algorithm name return either "BLAKE2b" or "BLAKE2s". An object algorithm name follows</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">/// the naming described in <A HREF="http://tools.ietf.org/html/rfc7693#section-4">RFC 7693, The</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">/// BLAKE2 Cryptographic Hash and Message Authentication Code (MAC)</A>.</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">/// \details The library provides specialized SSE2, SSE4 and NEON version of the BLAKE2 compression</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">/// function. For best results under ARM NEON, specify both an architecture and cpu. For example:</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">/// <pre>CXXFLAGS="-DNDEBUG -march=armv8-a+crc -mcpu=cortex-a53 ..."</pre></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">/// \since Crypto++ 5.6.4</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifndef CRYPTOPP_BLAKE2_H</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#define CRYPTOPP_BLAKE2_H</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "<a class="code" href="cryptlib_8h.html">cryptlib.h</a>"</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "<a class="code" href="secblock_8h.html">secblock.h</a>"</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "<a class="code" href="seckey_8h.html">seckey.h</a>"</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">/// \brief BLAKE2 hash information</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"></span><span class="comment">/// \tparam T_64bit flag indicating 64-bit</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"></span><span class="comment">/// \since Crypto++ 5.6.4</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keywordtype">bool</span> T_64bit></div><div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="struct_b_l_a_k_e2___info.html"> 30</a></span> <span class="keyword">struct </span><a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info</a> : <span class="keyword">public</span> <a class="code" href="class_variable_key_length.html">VariableKeyLength</a><(T_64bit ? 64 : 32),0,(T_64bit ? 64 : 32),1,SimpleKeyingInterface::NOT_RESYNCHRONIZABLE></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">typedef</span> <a class="code" href="class_variable_key_length.html">VariableKeyLength<(T_64bit ? 64 : 32),0,(T_64bit ? 64 : 32),1,SimpleKeyingInterface::NOT_RESYNCHRONIZABLE></a> <a class="code" href="class_variable_key_length.html">KeyBase</a>;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  CRYPTOPP_CONSTANT(MIN_KEYLENGTH = <a class="code" href="class_variable_key_length.html#aff5e41e92f02a8bb6a976b748e4e2ec9">KeyBase::MIN_KEYLENGTH</a>)</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  CRYPTOPP_CONSTANT(MAX_KEYLENGTH = <a class="code" href="class_variable_key_length.html#a26f33392d61edcaa678ae65002842d36">KeyBase::MAX_KEYLENGTH</a>)</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  CRYPTOPP_CONSTANT(DEFAULT_KEYLENGTH = <a class="code" href="class_variable_key_length.html#a3788ee30b190bdc0c0e89d2721162614">KeyBase::DEFAULT_KEYLENGTH</a>)</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  CRYPTOPP_CONSTANT(BLOCKSIZE = (T_64bit ? 128 : 64))</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  CRYPTOPP_CONSTANT(DIGESTSIZE = (T_64bit ? 64 : 32))</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  CRYPTOPP_CONSTANT(SALTSIZE = (T_64bit ? 16 : 8))</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  CRYPTOPP_CONSTANT(PERSONALIZATIONSIZE = (T_64bit ? 16 : 8))</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  CRYPTOPP_STATIC_CONSTEXPR <span class="keyword">const</span> <span class="keywordtype">char</span>* StaticAlgorithmName() {<span class="keywordflow">return</span> (T_64bit ? <span class="stringliteral">"BLAKE2b"</span> : <span class="stringliteral">"BLAKE2s"</span>);}</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> };</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"></span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment">/// \brief BLAKE2 parameter block</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment">/// \tparam T_64bit flag indicating 64-bit</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment">/// \details BLAKE2b uses BLAKE2_ParameterBlock<true>, while BLAKE2s</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment">/// uses BLAKE2_ParameterBlock<false>.</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment">/// \since Crypto++ 5.6.4</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keywordtype">bool</span> T_64bit></div><div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="struct_b_l_a_k_e2___parameter_block.html"> 51</a></span> <span class="keyword">struct </span>CRYPTOPP_NO_VTABLE <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock</a></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> {</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> };</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 BLAKE2b parameter block specialization</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"></span><span class="keyword">template</span><></div><div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="struct_b_l_a_k_e2___parameter_block_3_01true_01_4.html"> 57</a></span> <span class="keyword">struct </span>CRYPTOPP_NO_VTABLE <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock</a><true></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> {</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  CRYPTOPP_CONSTANT(SALTSIZE = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<true>::SALTSIZE</a>)</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  CRYPTOPP_CONSTANT(DIGESTSIZE = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<true>::DIGESTSIZE</a>)</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  CRYPTOPP_CONSTANT(PERSONALIZATIONSIZE = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<true>::PERSONALIZATIONSIZE</a>)</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock</a>()</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  memset(<span class="keyword">this</span>, 0x00, <span class="keyword">sizeof</span>(*<span class="keyword">this</span>));</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  digestLength = DIGESTSIZE;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  fanout = depth = 1;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock</a>(<span class="keywordtype">size_t</span> digestSize)</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>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(digestSize <= DIGESTSIZE);</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  memset(<span class="keyword">this</span>, 0x00, <span class="keyword">sizeof</span>(*<span class="keyword">this</span>));</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  digestLength = (byte)digestSize;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  fanout = depth = 1;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock</a>(<span class="keywordtype">size_t</span> digestSize, <span class="keywordtype">size_t</span> keyLength, <span class="keyword">const</span> byte* salt, <span class="keywordtype">size_t</span> saltLength,</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">const</span> byte* personalization, <span class="keywordtype">size_t</span> personalizationLength);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  byte digestLength;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  byte keyLength, fanout, depth;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  byte leafLength[4];</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  byte nodeOffset[8];</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  byte nodeDepth, innerLength, rfu[14];</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  byte salt[SALTSIZE];</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  byte personalization[PERSONALIZATIONSIZE];</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> };</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"></span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment">/// \brief BLAKE2s parameter block specialization</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"></span><span class="keyword">template</span><></div><div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="struct_b_l_a_k_e2___parameter_block_3_01false_01_4.html"> 92</a></span> <span class="keyword">struct </span>CRYPTOPP_NO_VTABLE <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock</a><false></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> {</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  CRYPTOPP_CONSTANT(SALTSIZE = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<false>::SALTSIZE</a>)</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  CRYPTOPP_CONSTANT(DIGESTSIZE = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<false>::DIGESTSIZE</a>)</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  CRYPTOPP_CONSTANT(PERSONALIZATIONSIZE = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<false>::PERSONALIZATIONSIZE</a>)</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock</a>()</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>  memset(<span class="keyword">this</span>, 0x00, <span class="keyword">sizeof</span>(*<span class="keyword">this</span>));</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  digestLength = DIGESTSIZE;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  fanout = depth = 1;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  }</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock</a>(<span class="keywordtype">size_t</span> digestSize)</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>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(digestSize <= DIGESTSIZE);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  memset(<span class="keyword">this</span>, 0x00, <span class="keyword">sizeof</span>(*<span class="keyword">this</span>));</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  digestLength = (byte)digestSize;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  fanout = depth = 1;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  }</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock</a>(<span class="keywordtype">size_t</span> digestSize, <span class="keywordtype">size_t</span> keyLength, <span class="keyword">const</span> byte* salt, <span class="keywordtype">size_t</span> saltLength,</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">const</span> byte* personalization, <span class="keywordtype">size_t</span> personalizationLength);</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  byte digestLength;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  byte keyLength, fanout, depth;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  byte leafLength[4];</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  byte nodeOffset[6];</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  byte nodeDepth, innerLength;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  byte salt[SALTSIZE];</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  byte personalization[PERSONALIZATIONSIZE];</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> };</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"></span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment">/// \brief BLAKE2 state information</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment">/// \tparam W word type</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment">/// \tparam T_64bit flag indicating 64-bit</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment">/// \details BLAKE2b uses BLAKE2_State<word64, true>, while BLAKE2s</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment">/// uses BLAKE2_State<word32, false>.</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment">/// \since Crypto++ 5.6.4</span></div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> W, <span class="keywordtype">bool</span> T_64bit></div><div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="struct_b_l_a_k_e2___state.html"> 132</a></span> <span class="keyword">struct </span>CRYPTOPP_NO_VTABLE <a class="code" href="struct_b_l_a_k_e2___state.html">BLAKE2_State</a></div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> {</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  CRYPTOPP_CONSTANT(BLOCKSIZE = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<T_64bit>::BLOCKSIZE</a>)</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="struct_b_l_a_k_e2___state.html">BLAKE2_State</a>()</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  {</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// Set all members except scratch buffer[]</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  h[0]=h[1]=h[2]=h[3]=h[4]=h[5]=h[6]=h[7] = 0;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  t[0]=t[1]=f[0]=f[1] = 0;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  length = 0;</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> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// SSE2, SSE4 and NEON depend upon t[] and f[] being side-by-side</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  W h[8], t[2], f[2];</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  byte buffer[BLOCKSIZE];</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">size_t</span> length;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> };</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment"></span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment">/// \brief BLAKE2 hash implementation</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment">/// \tparam W word type</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment">/// \tparam T_64bit flag indicating 64-bit</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment">/// \details BLAKE2b uses BLAKE2_Base<word64, true>, while BLAKE2s</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment">/// uses BLAKE2_Base<word32, false>.</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment">/// \since Crypto++ 5.6.4</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> W, <span class="keywordtype">bool</span> T_64bit></div><div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2___base.html"> 157</a></span> <span class="keyword">class </span><a class="code" href="class_b_l_a_k_e2___base.html">BLAKE2_Base</a> : <span class="keyword">public</span> <a class="code" href="class_simple_keying_interface_impl.html">SimpleKeyingInterfaceImpl</a><MessageAuthenticationCode, BLAKE2_Info<T_64bit> ></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> {</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  CRYPTOPP_CONSTANT(DEFAULT_KEYLENGTH = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<T_64bit>::DEFAULT_KEYLENGTH</a>)</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  CRYPTOPP_CONSTANT(MIN_KEYLENGTH = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<T_64bit>::MIN_KEYLENGTH</a>)</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  CRYPTOPP_CONSTANT(MAX_KEYLENGTH = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<T_64bit>::MAX_KEYLENGTH</a>)</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  CRYPTOPP_CONSTANT(DIGESTSIZE = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<T_64bit>::DIGESTSIZE</a>)</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  CRYPTOPP_CONSTANT(BLOCKSIZE = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<T_64bit>::BLOCKSIZE</a>)</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  CRYPTOPP_CONSTANT(SALTSIZE = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<T_64bit>::SALTSIZE</a>)</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  CRYPTOPP_CONSTANT(PERSONALIZATIONSIZE = <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<T_64bit>::PERSONALIZATIONSIZE</a>)</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">typedef</span> <a class="code" href="struct_b_l_a_k_e2___state.html">BLAKE2_State<W, T_64bit></a> <a class="code" href="struct_b_l_a_k_e2___state.html">State</a>;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keyword">typedef</span> <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock<T_64bit></a> <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">ParameterBlock</a>;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keyword">typedef</span> <a class="code" href="class_sec_block.html">SecBlock<State, AllocatorWithCleanup<State, true></a> > <a class="code" href="class_sec_block.html">AlignedState</a>;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">typedef</span> <a class="code" href="class_sec_block.html">SecBlock<ParameterBlock, AllocatorWithCleanup<ParameterBlock, true></a> > <a class="code" href="class_sec_block.html">AlignedParameterBlock</a>;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_b_l_a_k_e2___base.html">BLAKE2_Base</a>() {}</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"></span></div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"> /// \brief Retrieve the static algorithm name</span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment"> /// \returns the algorithm name (BLAKE2s or BLAKE2b)</span></div><div class="line"><a name="l00178"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2___base.html#aacfe19dcf2dfb17821f3997e2c002be9"> 178</a></span> <span class="comment"></span> CRYPTOPP_STATIC_CONSTEXPR <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="class_b_l_a_k_e2___base.html#aacfe19dcf2dfb17821f3997e2c002be9">StaticAlgorithmName</a>() {<span class="keywordflow">return</span> <a class="code" href="struct_b_l_a_k_e2___info.html">BLAKE2_Info<T_64bit>::StaticAlgorithmName</a>();}</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment"></span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment"> /// \brief Retrieve the object's name</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment"> /// \returns the object's algorithm name following RFC 7693</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment"> /// \details Object algorithm name follows the naming described in</span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment"> /// <A HREF="http://tools.ietf.org/html/rfc7693#section-4">RFC 7693, The BLAKE2 Cryptographic Hash and</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment"> /// Message Authentication Code (MAC)</A>. For example, "BLAKE2b-512" and "BLAKE2s-256".</span></div><div class="line"><a name="l00185"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2___base.html#aa53788e62669ef926219339d776abc4d"> 185</a></span> <span class="comment"></span> std::string <a class="code" href="class_b_l_a_k_e2___base.html#aa53788e62669ef926219339d776abc4d">AlgorithmName</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> std::string(<a class="code" href="class_b_l_a_k_e2___base.html#aacfe19dcf2dfb17821f3997e2c002be9">StaticAlgorithmName</a>()) + <span class="stringliteral">"-"</span> + <a class="code" href="misc_8h.html#a6cd7decd035cc4e144cd3d395e834106">IntToString</a>(this-><a class="code" href="class_b_l_a_k_e2___base.html#abdd0c124389fea75bcf5d230a4e76eed">DigestSize</a>()*8);}</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2___base.html#abdd0c124389fea75bcf5d230a4e76eed"> 187</a></span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_b_l_a_k_e2___base.html#abdd0c124389fea75bcf5d230a4e76eed">DigestSize</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_digestSize;}</div><div class="line"><a name="l00188"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2___base.html#a7aa9c2bbf51b6a7093bbcf122d7a1654"> 188</a></span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_b_l_a_k_e2___base.html#a7aa9c2bbf51b6a7093bbcf122d7a1654">OptimalDataAlignment</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> (CRYPTOPP_BOOL_ALIGN16 ? 16 : GetAlignmentOf<W>());}</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="keywordtype">void</span> <a class="code" href="class_b_l_a_k_e2___base.html#aa3716258df73a131ab5f69e55a6f0b48">Update</a>(<span class="keyword">const</span> byte *input, <span class="keywordtype">size_t</span> length);</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordtype">void</span> <a class="code" href="class_b_l_a_k_e2___base.html#a9cf8782a38383d88f13c872433b711d4">Restart</a>();</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment"></span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment"> /// \brief Restart a hash with parameter block and counter</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment"> /// \param block parameter block</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment"> /// \param counter counter array</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment"> /// \details Parameter block is persisted across calls to Restart().</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_b_l_a_k_e2___base.html#a9cf8782a38383d88f13c872433b711d4">Restart</a>(<span class="keyword">const</span> <a class="code" href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock<T_64bit></a>& block, <span class="keyword">const</span> W counter[2]);</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment"></span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment"> /// \brief Set tree mode</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment"> /// \param mode the new tree mode</span></div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment"> /// \details BLAKE2 has two finalization flags, called State::f[0] and State::f[1].</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"> /// If <tt>treeMode=false</tt> (default), then State::f[1] is never set. If</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment"> /// <tt>treeMode=true</tt>, then State::f[1] is set when State::f[0] is set.</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment"> /// Tree mode is persisted across calls to Restart().</span></div><div class="line"><a name="l00205"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2___base.html#a854cb41f661a62e850537e15440181d9"> 205</a></span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="class_b_l_a_k_e2___base.html#a854cb41f661a62e850537e15440181d9">SetTreeMode</a>(<span class="keywordtype">bool</span> mode) {m_treeMode=mode;}</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment"></span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment"> /// \brief Get tree mode</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"> /// \returns the current tree mode</span></div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"> /// \details Tree mode is persisted across calls to Restart().</span></div><div class="line"><a name="l00210"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2___base.html#a9531e26e9cd87a51779c36289c41d538"> 210</a></span> <span class="comment"></span> <span class="keywordtype">bool</span> <a class="code" href="class_b_l_a_k_e2___base.html#a9531e26e9cd87a51779c36289c41d538">GetTreeMode</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_treeMode;}</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordtype">void</span> <a class="code" href="class_b_l_a_k_e2___base.html#a7808dc4d35bbfcfef52ccf214b3dbb47">TruncatedFinal</a>(byte *hash, <span class="keywordtype">size_t</span> size);</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <a class="code" href="class_b_l_a_k_e2___base.html">BLAKE2_Base</a>();</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <a class="code" href="class_b_l_a_k_e2___base.html">BLAKE2_Base</a>(<span class="keywordtype">bool</span> treeMode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> digestSize);</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <a class="code" href="class_b_l_a_k_e2___base.html">BLAKE2_Base</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">size_t</span> keyLength, <span class="keyword">const</span> byte* salt, <span class="keywordtype">size_t</span> saltLength,</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keyword">const</span> byte* personalization, <span class="keywordtype">size_t</span> personalizationLength,</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordtype">bool</span> treeMode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> digestSize);</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="comment">// Operates on state buffer and/or input. Must be BLOCKSIZE, final block will pad with 0's.</span></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordtype">void</span> Compress(<span class="keyword">const</span> byte *input);</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> IncrementCounter(<span class="keywordtype">size_t</span> count=BLOCKSIZE);</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordtype">void</span> UncheckedSetKey(<span class="keyword">const</span> byte* key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> CryptoPP::NameValuePairs& params);</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  AlignedState m_state;</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  AlignedParameterBlock m_block;</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <a class="code" href="class_aligned_sec_byte_block.html">AlignedSecByteBlock</a> m_key;</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  word32 m_digestSize;</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordtype">bool</span> m_treeMode;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> };</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment"></span></div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment">/// \brief The BLAKE2b cryptographic hash function</span></div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment">/// \details BLAKE2b can function as both a hash and keyed hash. If you want only the hash,</span></div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment">/// then use the BLAKE2b constructor that accepts no parameters or digest size. If you</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment">/// want a keyed hash, then use the constructor that accpts the key as a parameter.</span></div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment">/// Once a key and digest size are selected, its effectively immutable. The Restart()</span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment">/// method that accepts a ParameterBlock does not allow you to change it.</span></div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment">/// \sa Aumasson, Neves, Wilcox-O'Hearn and Winnerlein's</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment">/// <A HREF="http://blake2.net/blake2.pdf">BLAKE2: simpler, smaller, fast as MD5</A> (2013.01.29).</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment">/// \since Crypto++ 5.6.4</span></div><div class="line"><a name="l00244"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2b.html"> 244</a></span> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_b_l_a_k_e2b.html">BLAKE2b</a> : <span class="keyword">public</span> <a class="code" href="class_b_l_a_k_e2___base.html">BLAKE2_Base</a><word64, true></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> {</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keyword">typedef</span> <a class="code" href="class_b_l_a_k_e2___base.html">BLAKE2_Base<word64, true></a> <a class="code" href="class_b_l_a_k_e2___base.html">ThisBase</a>; <span class="comment">// Early Visual Studio workaround</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keyword">typedef</span> <a class="code" href="struct_b_l_a_k_e2___parameter_block_3_01true_01_4.html">BLAKE2_ParameterBlock<true></a> <a class="code" href="struct_b_l_a_k_e2___parameter_block_3_01true_01_4.html">ParameterBlock</a>;</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <a class="code" href="misc_8h.html#a6b378b1b9b2d4654cc852c088742ba70">CRYPTOPP_COMPILE_ASSERT</a>(<span class="keyword">sizeof</span>(<a class="code" href="struct_b_l_a_k_e2___parameter_block_3_01true_01_4.html">ParameterBlock</a>) == 64);</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment"></span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="comment"> /// \brief Construct a BLAKE2b hash</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment"> /// \param digestSize the digest size, in bytes</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="comment"> /// \param treeMode flag indicating tree mode</span></div><div class="line"><a name="l00254"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2b.html#afc0f94f309d0e5233c490ebf0d8602ae"> 254</a></span> <span class="comment"></span> <a class="code" href="class_b_l_a_k_e2b.html#afc0f94f309d0e5233c490ebf0d8602ae">BLAKE2b</a>(<span class="keywordtype">bool</span> treeMode=<span class="keyword">false</span>, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> digestSize = DIGESTSIZE) : <a class="code" href="class_b_l_a_k_e2___base.html">ThisBase</a>(treeMode, digestSize) {}</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment"></span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="comment"> /// \brief Construct a BLAKE2b hash</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="comment"> /// \param key a byte array used to key the cipher</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="comment"> /// \param keyLength the size of the byte array</span></div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="comment"> /// \param salt a byte array used as salt</span></div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="comment"> /// \param saltLength the size of the byte array</span></div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment"> /// \param personalization a byte array used as prsonalization string</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="comment"> /// \param personalizationLength the size of the byte array</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment"> /// \param treeMode flag indicating tree mode</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment"> /// \param digestSize the digest size, in bytes</span></div><div class="line"><a name="l00265"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2b.html#a34721bb469c0d5dd7060d2f16d83cea3"> 265</a></span> <span class="comment"></span> <a class="code" href="class_b_l_a_k_e2b.html#a34721bb469c0d5dd7060d2f16d83cea3">BLAKE2b</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">size_t</span> keyLength, <span class="keyword">const</span> byte* salt = NULLPTR, <span class="keywordtype">size_t</span> saltLength = 0,</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keyword">const</span> byte* personalization = NULLPTR, <span class="keywordtype">size_t</span> personalizationLength = 0,</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordtype">bool</span> treeMode=<span class="keyword">false</span>, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> digestSize = DIGESTSIZE)</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  : <a class="code" href="class_b_l_a_k_e2___base.html">ThisBase</a>(key, keyLength, salt, saltLength, personalization, personalizationLength, treeMode, digestSize) {}</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> };</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="comment"></span></div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="comment">/// \brief The BLAKE2s cryptographic hash function</span></div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="comment">/// \details BLAKE2s can function as both a hash and keyed hash. If you want only the hash,</span></div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment">/// then use the BLAKE2s constructor that accepts no parameters or digest size. If you</span></div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment">/// want a keyed hash, then use the constructor that accpts the key as a parameter.</span></div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="comment">/// Once a key and digest size are selected, its effectively immutable. The Restart()</span></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="comment">/// method that accepts a ParameterBlock does not allow you to change it.</span></div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="comment">/// \sa Aumasson, Neves, Wilcox-O'Hearn and Winnerlein's</span></div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment">/// <A HREF="http://blake2.net/blake2.pdf">BLAKE2: simpler, smaller, fast as MD5</A> (2013.01.29).</span></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment">/// \since Crypto++ 5.6.4</span></div><div class="line"><a name="l00280"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2s.html"> 280</a></span> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_b_l_a_k_e2s.html">BLAKE2s</a> : <span class="keyword">public</span> <a class="code" href="class_b_l_a_k_e2___base.html">BLAKE2_Base</a><word32, false></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> {</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keyword">typedef</span> <a class="code" href="class_b_l_a_k_e2___base.html">BLAKE2_Base<word32, false></a> <a class="code" href="class_b_l_a_k_e2___base.html">ThisBase</a>; <span class="comment">// Early Visual Studio workaround</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keyword">typedef</span> <a class="code" href="struct_b_l_a_k_e2___parameter_block_3_01false_01_4.html">BLAKE2_ParameterBlock<false></a> <a class="code" href="struct_b_l_a_k_e2___parameter_block_3_01false_01_4.html">ParameterBlock</a>;</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <a class="code" href="misc_8h.html#a6b378b1b9b2d4654cc852c088742ba70">CRYPTOPP_COMPILE_ASSERT</a>(<span class="keyword">sizeof</span>(<a class="code" href="struct_b_l_a_k_e2___parameter_block_3_01false_01_4.html">ParameterBlock</a>) == 32);</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment"></span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment"> /// \brief Construct a BLAKE2s hash</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment"> /// \param digestSize the digest size, in bytes</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="comment"> /// \param treeMode flag indicating tree mode</span></div><div class="line"><a name="l00290"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2s.html#a8e507d4d64e7988fdca52cc243116ccb"> 290</a></span> <span class="comment"></span> <a class="code" href="class_b_l_a_k_e2s.html#a8e507d4d64e7988fdca52cc243116ccb">BLAKE2s</a>(<span class="keywordtype">bool</span> treeMode=<span class="keyword">false</span>, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> digestSize = DIGESTSIZE) : <a class="code" href="class_b_l_a_k_e2___base.html">ThisBase</a>(treeMode, digestSize) {}</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment"></span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment"> /// \brief Construct a BLAKE2s hash</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="comment"> /// \param key a byte array used to key the cipher</span></div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="comment"> /// \param keyLength the size of the byte array</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="comment"> /// \param salt a byte array used as salt</span></div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment"> /// \param saltLength the size of the byte array</span></div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="comment"> /// \param personalization a byte array used as prsonalization string</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="comment"> /// \param personalizationLength the size of the byte array</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment"> /// \param treeMode flag indicating tree mode</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment"> /// \param digestSize the digest size, in bytes</span></div><div class="line"><a name="l00301"></a><span class="lineno"><a class="line" href="class_b_l_a_k_e2s.html#a4d69095f11f5417b2f10f8f691ed83d5"> 301</a></span> <span class="comment"></span> <a class="code" href="class_b_l_a_k_e2s.html#a4d69095f11f5417b2f10f8f691ed83d5">BLAKE2s</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">size_t</span> keyLength, <span class="keyword">const</span> byte* salt = NULLPTR, <span class="keywordtype">size_t</span> saltLength = 0,</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keyword">const</span> byte* personalization = NULLPTR, <span class="keywordtype">size_t</span> personalizationLength = 0,</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordtype">bool</span> treeMode=<span class="keyword">false</span>, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> digestSize = DIGESTSIZE)</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  : <a class="code" href="class_b_l_a_k_e2___base.html">ThisBase</a>(key, keyLength, salt, saltLength, personalization, personalizationLength, treeMode, digestSize) {}</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> };</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span> </div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span> NAMESPACE_END</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> <span class="preprocessor">#endif</span></div><div class="ttc" id="class_b_l_a_k_e2___base_html_a9cf8782a38383d88f13c872433b711d4"><div class="ttname"><a href="class_b_l_a_k_e2___base.html#a9cf8782a38383d88f13c872433b711d4">BLAKE2_Base::Restart</a></div><div class="ttdeci">void Restart()</div><div class="ttdoc">Restart the hash. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8cpp_source.html#l00319">blake2.cpp:319</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2b_html_a34721bb469c0d5dd7060d2f16d83cea3"><div class="ttname"><a href="class_b_l_a_k_e2b.html#a34721bb469c0d5dd7060d2f16d83cea3">BLAKE2b::BLAKE2b</a></div><div class="ttdeci">BLAKE2b(const byte *key, size_t keyLength, const byte *salt=NULL, size_t saltLength=0, const byte *personalization=NULL, size_t personalizationLength=0, bool treeMode=false, unsigned int digestSize=DIGESTSIZE)</div><div class="ttdoc">Construct a BLAKE2b hash. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00265">blake2.h:265</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2___base_html"><div class="ttname"><a href="class_b_l_a_k_e2___base.html">BLAKE2_Base</a></div><div class="ttdoc">BLAKE2 hash implementation. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00157">blake2.h:157</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2___base_html_a9531e26e9cd87a51779c36289c41d538"><div class="ttname"><a href="class_b_l_a_k_e2___base.html#a9531e26e9cd87a51779c36289c41d538">BLAKE2_Base::GetTreeMode</a></div><div class="ttdeci">bool GetTreeMode() const</div><div class="ttdoc">Get tree mode. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00210">blake2.h:210</a></div></div>
<div class="ttc" id="class_variable_key_length_html_a26f33392d61edcaa678ae65002842d36"><div class="ttname"><a href="class_variable_key_length.html#a26f33392d61edcaa678ae65002842d36">VariableKeyLength<(T_64bit ? 64 :32), 0,(T_64bit ? 64 :32), 1, SimpleKeyingInterface::NOT_RESYNCHRONIZABLE >::MAX_KEYLENGTH</a></div><div class="ttdeci">static const int MAX_KEYLENGTH</div><div class="ttdoc">The maximum key length used by the algorithm provided as a constant. </div><div class="ttdef"><b>Definition:</b> <a href="seckey_8h_source.html#l00204">seckey.h:204</a></div></div>
<div class="ttc" id="class_simple_keying_interface_impl_html"><div class="ttname"><a href="class_simple_keying_interface_impl.html">SimpleKeyingInterfaceImpl</a></div><div class="ttdoc">Provides a base implementation of SimpleKeyingInterface. </div><div class="ttdef"><b>Definition:</b> <a href="seckey_8h_source.html#l00280">seckey.h:280</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2___base_html_a7808dc4d35bbfcfef52ccf214b3dbb47"><div class="ttname"><a href="class_b_l_a_k_e2___base.html#a7808dc4d35bbfcfef52ccf214b3dbb47">BLAKE2_Base::TruncatedFinal</a></div><div class="ttdeci">void TruncatedFinal(byte *hash, size_t size)</div><div class="ttdoc">Computes the hash of the current message. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8cpp_source.html#l00391">blake2.cpp:391</a></div></div>
<div class="ttc" id="class_sec_block_html"><div class="ttname"><a href="class_sec_block.html">SecBlock</a></div><div class="ttdoc">Secure memory block with allocator and cleanup. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00454">secblock.h:454</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="struct_b_l_a_k_e2___info_html"><div class="ttname"><a href="struct_b_l_a_k_e2___info.html">BLAKE2_Info</a></div><div class="ttdoc">BLAKE2 hash information. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00030">blake2.h:30</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2s_html_a8e507d4d64e7988fdca52cc243116ccb"><div class="ttname"><a href="class_b_l_a_k_e2s.html#a8e507d4d64e7988fdca52cc243116ccb">BLAKE2s::BLAKE2s</a></div><div class="ttdeci">BLAKE2s(bool treeMode=false, unsigned int digestSize=DIGESTSIZE)</div><div class="ttdoc">Construct a BLAKE2s hash. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00290">blake2.h:290</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2s_html"><div class="ttname"><a href="class_b_l_a_k_e2s.html">BLAKE2s</a></div><div class="ttdoc">The BLAKE2s cryptographic hash function. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00280">blake2.h:280</a></div></div>
<div class="ttc" id="secblock_8h_html"><div class="ttname"><a href="secblock_8h.html">secblock.h</a></div><div class="ttdoc">Classes and functions for secure memory allocations. </div></div>
<div class="ttc" id="seckey_8h_html"><div class="ttname"><a href="seckey_8h.html">seckey.h</a></div><div class="ttdoc">Classes and functions for implementing secret key algorithms. </div></div>
<div class="ttc" id="misc_8h_html_a6b378b1b9b2d4654cc852c088742ba70"><div class="ttname"><a href="misc_8h.html#a6b378b1b9b2d4654cc852c088742ba70">CRYPTOPP_COMPILE_ASSERT</a></div><div class="ttdeci">#define CRYPTOPP_COMPILE_ASSERT(expr)</div><div class="ttdoc">Compile time assertion. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00144">misc.h:144</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2___base_html_aa53788e62669ef926219339d776abc4d"><div class="ttname"><a href="class_b_l_a_k_e2___base.html#aa53788e62669ef926219339d776abc4d">BLAKE2_Base::AlgorithmName</a></div><div class="ttdeci">std::string AlgorithmName() const</div><div class="ttdoc">Retrieve the object&#39;s name. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00185">blake2.h:185</a></div></div>
<div class="ttc" id="class_variable_key_length_html_a3788ee30b190bdc0c0e89d2721162614"><div class="ttname"><a href="class_variable_key_length.html#a3788ee30b190bdc0c0e89d2721162614">VariableKeyLength<(T_64bit ? 64 :32), 0,(T_64bit ? 64 :32), 1, SimpleKeyingInterface::NOT_RESYNCHRONIZABLE >::DEFAULT_KEYLENGTH</a></div><div class="ttdeci">static const int DEFAULT_KEYLENGTH</div><div class="ttdoc">The default key length used by the algorithm provided as a constant. </div><div class="ttdef"><b>Definition:</b> <a href="seckey_8h_source.html#l00207">seckey.h:207</a></div></div>
<div class="ttc" id="class_aligned_sec_byte_block_html"><div class="ttname"><a href="class_aligned_sec_byte_block.html">AlignedSecByteBlock</a></div><div class="ttdoc">SecBlock using AllocatorWithCleanup<byte, true> typedef. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00826">secblock.h:826</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="struct_b_l_a_k_e2___parameter_block_3_01false_01_4_html"><div class="ttname"><a href="struct_b_l_a_k_e2___parameter_block_3_01false_01_4.html">BLAKE2_ParameterBlock< false ></a></div><div class="ttdoc">BLAKE2s parameter block specialization. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00092">blake2.h:92</a></div></div>
<div class="ttc" id="class_variable_key_length_html"><div class="ttname"><a href="class_variable_key_length.html">VariableKeyLength</a></div><div class="ttdoc">Inherited by keyed algorithms with variable key length. </div><div class="ttdef"><b>Definition:</b> <a href="seckey_8h_source.html#l00188">seckey.h:188</a></div></div>
<div class="ttc" id="struct_b_l_a_k_e2___state_html"><div class="ttname"><a href="struct_b_l_a_k_e2___state.html">BLAKE2_State</a></div><div class="ttdoc">BLAKE2 state information. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00132">blake2.h:132</a></div></div>
<div class="ttc" id="struct_b_l_a_k_e2___parameter_block_html"><div class="ttname"><a href="struct_b_l_a_k_e2___parameter_block.html">BLAKE2_ParameterBlock</a></div><div class="ttdoc">BLAKE2 parameter block. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00051">blake2.h:51</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2___base_html_abdd0c124389fea75bcf5d230a4e76eed"><div class="ttname"><a href="class_b_l_a_k_e2___base.html#abdd0c124389fea75bcf5d230a4e76eed">BLAKE2_Base::DigestSize</a></div><div class="ttdeci">unsigned int DigestSize() const</div><div class="ttdoc">Provides the digest size of the hash. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00187">blake2.h:187</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2___base_html_a854cb41f661a62e850537e15440181d9"><div class="ttname"><a href="class_b_l_a_k_e2___base.html#a854cb41f661a62e850537e15440181d9">BLAKE2_Base::SetTreeMode</a></div><div class="ttdeci">void SetTreeMode(bool mode)</div><div class="ttdoc">Set tree mode. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00205">blake2.h:205</a></div></div>
<div class="ttc" id="class_variable_key_length_html_aff5e41e92f02a8bb6a976b748e4e2ec9"><div class="ttname"><a href="class_variable_key_length.html#aff5e41e92f02a8bb6a976b748e4e2ec9">VariableKeyLength<(T_64bit ? 64 :32), 0,(T_64bit ? 64 :32), 1, SimpleKeyingInterface::NOT_RESYNCHRONIZABLE >::MIN_KEYLENGTH</a></div><div class="ttdeci">static const int MIN_KEYLENGTH</div><div class="ttdoc">The minimum key length used by the algorithm provided as a constant. </div><div class="ttdef"><b>Definition:</b> <a href="seckey_8h_source.html#l00201">seckey.h:201</a></div></div>
<div class="ttc" id="misc_8h_html_a6cd7decd035cc4e144cd3d395e834106"><div class="ttname"><a href="misc_8h.html#a6cd7decd035cc4e144cd3d395e834106">IntToString</a></div><div class="ttdeci">std::string IntToString(T value, unsigned int base=10)</div><div class="ttdoc">Converts a value to a string. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00576">misc.h:576</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2___base_html_a7aa9c2bbf51b6a7093bbcf122d7a1654"><div class="ttname"><a href="class_b_l_a_k_e2___base.html#a7aa9c2bbf51b6a7093bbcf122d7a1654">BLAKE2_Base::OptimalDataAlignment</a></div><div class="ttdeci">unsigned int OptimalDataAlignment() const</div><div class="ttdoc">Provides input and output data alignment for optimal performance. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00188">blake2.h:188</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2___base_html_aacfe19dcf2dfb17821f3997e2c002be9"><div class="ttname"><a href="class_b_l_a_k_e2___base.html#aacfe19dcf2dfb17821f3997e2c002be9">BLAKE2_Base::StaticAlgorithmName</a></div><div class="ttdeci">static const char * StaticAlgorithmName()</div><div class="ttdoc">Retrieve the static algorithm name. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00178">blake2.h:178</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_b_l_a_k_e2b_html_afc0f94f309d0e5233c490ebf0d8602ae"><div class="ttname"><a href="class_b_l_a_k_e2b.html#afc0f94f309d0e5233c490ebf0d8602ae">BLAKE2b::BLAKE2b</a></div><div class="ttdeci">BLAKE2b(bool treeMode=false, unsigned int digestSize=DIGESTSIZE)</div><div class="ttdoc">Construct a BLAKE2b hash. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00254">blake2.h:254</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2s_html_a4d69095f11f5417b2f10f8f691ed83d5"><div class="ttname"><a href="class_b_l_a_k_e2s.html#a4d69095f11f5417b2f10f8f691ed83d5">BLAKE2s::BLAKE2s</a></div><div class="ttdeci">BLAKE2s(const byte *key, size_t keyLength, const byte *salt=NULL, size_t saltLength=0, const byte *personalization=NULL, size_t personalizationLength=0, bool treeMode=false, unsigned int digestSize=DIGESTSIZE)</div><div class="ttdoc">Construct a BLAKE2s hash. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00301">blake2.h:301</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2b_html"><div class="ttname"><a href="class_b_l_a_k_e2b.html">BLAKE2b</a></div><div class="ttdoc">The BLAKE2b cryptographic hash function. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00244">blake2.h:244</a></div></div>
<div class="ttc" id="struct_b_l_a_k_e2___parameter_block_3_01true_01_4_html"><div class="ttname"><a href="struct_b_l_a_k_e2___parameter_block_3_01true_01_4.html">BLAKE2_ParameterBlock< true ></a></div><div class="ttdoc">BLAKE2b parameter block specialization. </div><div class="ttdef"><b>Definition:</b> <a href="blake2_8h_source.html#l00057">blake2.h:57</a></div></div>
<div class="ttc" id="class_b_l_a_k_e2___base_html_aa3716258df73a131ab5f69e55a6f0b48"><div class="ttname"><a href="class_b_l_a_k_e2___base.html#aa3716258df73a131ab5f69e55a6f0b48">BLAKE2_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="blake2_8cpp_source.html#l00357">blake2.cpp:357</a></div></div>
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