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<a href="rdrand_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">// rdrand.h - written and placed in public domain by Jeffrey Walton and Uri Blumenthal.</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"></span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">/// \file rdrand.h</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">/// \brief Classes for RDRAND and RDSEED</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">/// \since Crypto++ 5.6.3</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"></span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#ifndef CRYPTOPP_RDRAND_H</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#define CRYPTOPP_RDRAND_H</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "<a class="code" href="cryptlib_8h.html">cryptlib.h</a>"</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// This class file provides both RDRAND and RDSEED. They were added at</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// Crypto++ 5.6.3. At compile time, it uses CRYPTOPP_BOOL_{X86|X32|X64}</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// to select an implementation or "throw NotImplemented". At runtime the</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// constructor will throw RDRAND_Err or RDSEED_Err if a generator is</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// is not available.</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// The original classes accepted a retry count. Retries were superflous for</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// RDRAND, and RDSEED encountered a failure about 1 in 256 bytes depending</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// on the processor. Retries were removed at Crypto++ 6.0 because</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// GenerateBlock unconditionally retries and always fulfills the request.</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// Throughput varies wildly depending on processor and manufacturer. A Core i5 or</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// Core i7 RDRAND can generate at over 200 MiB/s. Its below the theroetical</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// maximum, but it takes about 5 instructions to generate, retry and store a</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// result. A low-end Celeron may perform RDRAND at about 7 MiB/s. RDSEED</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// performs at about 1/4 to 1/2 the rate of RDRAND. AMD RDRAND performed poorly</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// during testing with Athlon X4 845. The Bulldozer v4 only performed at 1 MiB/s.</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> <span class="comment">// Microsoft added RDRAND in August 2012, VS2012; RDSEED in October 2013, VS2013.</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// GCC added RDRAND in December 2010, GCC 4.6. LLVM added RDRAND in July 2012,</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// Clang 3.2. Intel added RDRAND in September 2011, ICC 12.1.</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">/// \brief Exception thrown when a RDRAND generator encounters</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"></span><span class="comment">/// a generator related error.</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"></span><span class="comment">/// \since Crypto++ 5.6.3</span></div><div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="class_r_d_r_a_n_d___err.html"> 38</a></span> <span class="comment"></span>class <a class="code" href="class_r_d_r_a_n_d___err.html">RDRAND_Err</a> : public <a class="code" href="class_exception.html">Exception</a></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <a class="code" href="class_r_d_r_a_n_d___err.html">RDRAND_Err</a>(<span class="keyword">const</span> std::string &operation)</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  : <a class="code" href="class_exception.html">Exception</a>(OTHER_ERROR, <span class="stringliteral">"RDRAND: "</span> + operation + <span class="stringliteral">" operation failed"</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 Hardware generated random numbers using RDRAND instruction</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment">/// \sa MaurerRandomnessTest() for random bit generators</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment">/// \since Crypto++ 5.6.3</span></div><div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="class_r_d_r_a_n_d.html"> 48</a></span> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_r_d_r_a_n_d.html">RDRAND</a> : <span class="keyword">public</span> <a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> {</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  CRYPTOPP_STATIC_CONSTEXPR <span class="keyword">const</span> <span class="keywordtype">char</span>* StaticAlgorithmName() { <span class="keywordflow">return</span> <span class="stringliteral">"RDRAND"</span>; }</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_r_d_r_a_n_d.html">RDRAND</a>() {}</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 Construct a RDRAND generator</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> /// \details According to DJ of Intel, the Intel RDRAND circuit does not underflow.</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> /// If it did hypothetically underflow, then it would return 0 for the random value.</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> /// AMD's RDRAND implementation appears to provide the same behavior.</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> /// \throws RDRAND_Err if the random number generator is not available</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"></span> <a class="code" href="class_r_d_r_a_n_d.html#a0a76d2b9a7fa812ab643a1b162fbff0d">RDRAND</a>();</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"></span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> /// \brief Generate random array of bytes</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> /// \param output the byte buffer</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> /// \param size the length of the buffer, in bytes</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_r_a_n_d.html#a3ea6b8b0fefee89c9273b95021b0a17f">GenerateBlock</a>(<span class="keywordtype">byte</span> *output, <span class="keywordtype">size_t</span> size);</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"></span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> /// \brief Generate and discard n bytes</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> /// \param n the number of bytes to generate and discard</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> /// \details the RDSEED generator discards words, not bytes. If n is</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> /// not a multiple of a machine word, then it is rounded up to</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> /// that size.</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_r_a_n_d.html#a7e3a9673e64edef43a4608c3bc39a023">DiscardBytes</a>(<span class="keywordtype">size_t</span> n);</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"></span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> /// \brief Update RNG state with additional unpredictable values</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> /// \param input unused</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> /// \param length unused</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> /// \details The operation is a nop for this generator.</span></div><div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="class_r_d_r_a_n_d.html#af1a27744fe2fa915702e5031caa1efa9"> 78</a></span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_r_a_n_d.html#af1a27744fe2fa915702e5031caa1efa9">IncorporateEntropy</a>(<span class="keyword">const</span> <span class="keywordtype">byte</span> *input, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  {</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">// Override to avoid the base class' throw.</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  CRYPTOPP_UNUSED(input); CRYPTOPP_UNUSED(length);</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  }</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> };</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"></span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment">/// \brief Exception thrown when a RDSEED generator encounters</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment">/// a generator related error.</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment">/// \since Crypto++ 5.6.3</span></div><div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="class_r_d_s_e_e_d___err.html"> 88</a></span> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_r_d_s_e_e_d___err.html">RDSEED_Err</a> : <span class="keyword">public</span> <a class="code" href="class_exception.html">Exception</a></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="class_r_d_s_e_e_d___err.html">RDSEED_Err</a>(<span class="keyword">const</span> std::string &operation)</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  : <a class="code" href="class_exception.html#a30847048a4b7c9a7aae5e6178964dcfb">Exception</a>(<a class="code" href="class_exception.html#a8e53909d979479380e0274807c074c0aa27d9ee7704100a88e4ae4adcc4072015">OTHER_ERROR</a>, <span class="stringliteral">"RDSEED: "</span> + operation + <span class="stringliteral">" operation failed"</span>) {}</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> <span class="comment"></span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment">/// \brief Hardware generated random numbers using RDSEED instruction</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment">/// \sa MaurerRandomnessTest() for random bit generators</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment">/// \since Crypto++ 5.6.3</span></div><div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="class_r_d_s_e_e_d.html"> 98</a></span> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_r_d_s_e_e_d.html">RDSEED</a> : <span class="keyword">public</span> <a class="code" href="class_random_number_generator.html">RandomNumberGenerator</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> <span class="keyword">public</span>:</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  CRYPTOPP_STATIC_CONSTEXPR <span class="keyword">const</span> <span class="keywordtype">char</span>* StaticAlgorithmName() { <span class="keywordflow">return</span> <span class="stringliteral">"RDSEED"</span>; }</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">virtual</span> ~<a class="code" href="class_r_d_s_e_e_d.html">RDSEED</a>() {}</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"></span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> /// \brief Construct a RDSEED generator</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> /// \details Empirical testing under a 6th generaton i7 (6200U) shows RDSEED fails</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"> /// to fulfill requests at about once every for every 256 bytes requested.</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment"> /// The generator runs about 4 times slower than RDRAND.</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment"> /// \throws RDSEED_Err if the random number generator is not available</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"></span> <a class="code" href="class_r_d_s_e_e_d.html#a2269da427f4978fc8b2e20e669882f42">RDSEED</a>();</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"></span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment"> /// \brief Generate random array of bytes</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment"> /// \param output the byte buffer</span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment"> /// \param size the length of the buffer, in bytes</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_s_e_e_d.html#a2a344e8a2280743c37b143204fdbe029">GenerateBlock</a>(<span class="keywordtype">byte</span> *output, <span class="keywordtype">size_t</span> size);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"></span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> /// \brief Generate and discard n bytes</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"> /// \param n the number of bytes to generate and discard</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment"> /// \details the RDSEED generator discards words, not bytes. If n is</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment"> /// not a multiple of a machine word, then it is rounded up to</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment"> /// that size.</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_s_e_e_d.html#a3249f370eba551e6fc575b103933bf64">DiscardBytes</a>(<span class="keywordtype">size_t</span> n);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"></span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"> /// \brief Update RNG state with additional unpredictable values</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> /// \param input unused</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"> /// \param length unused</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> /// \details The operation is a nop for this generator.</span></div><div class="line"><a name="l00128"></a><span class="lineno"><a class="line" href="class_r_d_s_e_e_d.html#a29f800ffe1130bafb1fb8ab3d98f1ec9"> 128</a></span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_s_e_e_d.html#a29f800ffe1130bafb1fb8ab3d98f1ec9">IncorporateEntropy</a>(<span class="keyword">const</span> <span class="keywordtype">byte</span> *input, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  {</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="comment">// Override to avoid the base class' throw.</span></div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  CRYPTOPP_UNUSED(input); CRYPTOPP_UNUSED(length);</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> };</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> NAMESPACE_END</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="preprocessor">#endif // CRYPTOPP_RDRAND_H</span></div><div class="ttc" id="class_exception_html"><div class="ttname"><a href="class_exception.html">Exception</a></div><div class="ttdoc">Base class for all exceptions thrown by the library.</div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00155">cryptlib.h:155</a></div></div>
<div class="ttc" id="class_r_d_s_e_e_d_html_a3249f370eba551e6fc575b103933bf64"><div class="ttname"><a href="class_r_d_s_e_e_d.html#a3249f370eba551e6fc575b103933bf64">RDSEED::DiscardBytes</a></div><div class="ttdeci">virtual void DiscardBytes(size_t n)</div><div class="ttdoc">Generate and discard n bytes.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8cpp_source.html#l00416">rdrand.cpp:416</a></div></div>
<div class="ttc" id="class_exception_html_a30847048a4b7c9a7aae5e6178964dcfb"><div class="ttname"><a href="class_exception.html#a30847048a4b7c9a7aae5e6178964dcfb">Exception::Exception</a></div><div class="ttdeci">Exception(ErrorType errorType, const std::string &s)</div><div class="ttdoc">Construct a new Exception.</div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00180">cryptlib.h:180</a></div></div>
<div class="ttc" id="class_r_d_r_a_n_d_html"><div class="ttname"><a href="class_r_d_r_a_n_d.html">RDRAND</a></div><div class="ttdoc">Hardware generated random numbers using RDRAND instruction.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8h_source.html#l00048">rdrand.h:48</a></div></div>
<div class="ttc" id="class_r_d_s_e_e_d_html_a29f800ffe1130bafb1fb8ab3d98f1ec9"><div class="ttname"><a href="class_r_d_s_e_e_d.html#a29f800ffe1130bafb1fb8ab3d98f1ec9">RDSEED::IncorporateEntropy</a></div><div class="ttdeci">virtual void IncorporateEntropy(const byte *input, size_t length)</div><div class="ttdoc">Update RNG state with additional unpredictable values.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8h_source.html#l00128">rdrand.h:128</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="class_exception_html_a8e53909d979479380e0274807c074c0aa27d9ee7704100a88e4ae4adcc4072015"><div class="ttname"><a href="class_exception.html#a8e53909d979479380e0274807c074c0aa27d9ee7704100a88e4ae4adcc4072015">Exception::OTHER_ERROR</a></div><div class="ttdoc">Some other error occurred not belonging to other categories.</div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00174">cryptlib.h:174</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_r_d_r_a_n_d_html_af1a27744fe2fa915702e5031caa1efa9"><div class="ttname"><a href="class_r_d_r_a_n_d.html#af1a27744fe2fa915702e5031caa1efa9">RDRAND::IncorporateEntropy</a></div><div class="ttdeci">virtual void IncorporateEntropy(const byte *input, size_t length)</div><div class="ttdoc">Update RNG state with additional unpredictable values.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8h_source.html#l00078">rdrand.h:78</a></div></div>
<div class="ttc" id="class_r_d_s_e_e_d_html_a2269da427f4978fc8b2e20e669882f42"><div class="ttname"><a href="class_r_d_s_e_e_d.html#a2269da427f4978fc8b2e20e669882f42">RDSEED::RDSEED</a></div><div class="ttdeci">RDSEED()</div><div class="ttdoc">Construct a RDSEED generator.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8cpp_source.html#l00366">rdrand.cpp:366</a></div></div>
<div class="ttc" id="class_r_d_r_a_n_d___err_html"><div class="ttname"><a href="class_r_d_r_a_n_d___err.html">RDRAND_Err</a></div><div class="ttdoc">Exception thrown when a RDRAND generator encounters a generator related error.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8h_source.html#l00038">rdrand.h:38</a></div></div>
<div class="ttc" id="class_r_d_r_a_n_d_html_a7e3a9673e64edef43a4608c3bc39a023"><div class="ttname"><a href="class_r_d_r_a_n_d.html#a7e3a9673e64edef43a4608c3bc39a023">RDRAND::DiscardBytes</a></div><div class="ttdeci">virtual void DiscardBytes(size_t n)</div><div class="ttdoc">Generate and discard n bytes.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8cpp_source.html#l00263">rdrand.cpp:263</a></div></div>
<div class="ttc" id="class_r_d_s_e_e_d_html_a2a344e8a2280743c37b143204fdbe029"><div class="ttname"><a href="class_r_d_s_e_e_d.html#a2a344e8a2280743c37b143204fdbe029">RDSEED::GenerateBlock</a></div><div class="ttdeci">virtual void GenerateBlock(byte *output, size_t size)</div><div class="ttdoc">Generate random array of bytes.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8cpp_source.html#l00372">rdrand.cpp:372</a></div></div>
<div class="ttc" id="class_r_d_s_e_e_d_html"><div class="ttname"><a href="class_r_d_s_e_e_d.html">RDSEED</a></div><div class="ttdoc">Hardware generated random numbers using RDSEED instruction.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8h_source.html#l00098">rdrand.h:98</a></div></div>
<div class="ttc" id="class_r_d_r_a_n_d_html_a3ea6b8b0fefee89c9273b95021b0a17f"><div class="ttname"><a href="class_r_d_r_a_n_d.html#a3ea6b8b0fefee89c9273b95021b0a17f">RDRAND::GenerateBlock</a></div><div class="ttdeci">virtual void GenerateBlock(byte *output, size_t size)</div><div class="ttdoc">Generate random array of bytes.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8cpp_source.html#l00215">rdrand.cpp:215</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_r_d_s_e_e_d___err_html"><div class="ttname"><a href="class_r_d_s_e_e_d___err.html">RDSEED_Err</a></div><div class="ttdoc">Exception thrown when a RDSEED generator encounters a generator related error.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8h_source.html#l00088">rdrand.h:88</a></div></div>
<div class="ttc" id="class_r_d_r_a_n_d_html_a0a76d2b9a7fa812ab643a1b162fbff0d"><div class="ttname"><a href="class_r_d_r_a_n_d.html#a0a76d2b9a7fa812ab643a1b162fbff0d">RDRAND::RDRAND</a></div><div class="ttdeci">RDRAND()</div><div class="ttdoc">Construct a RDRAND generator.</div><div class="ttdef"><b>Definition:</b> <a href="rdrand_8cpp_source.html#l00209">rdrand.cpp:209</a></div></div>
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