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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// rdrand.cpp - 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> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor">#include "<a class="code" href="pch_8h.html">pch.h</a>"</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include "<a class="code" href="config_8h.html">config.h</a>"</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include "<a class="code" href="cryptlib_8h.html">cryptlib.h</a>"</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include "<a class="code" href="secblock_8h.html">secblock.h</a>"</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "<a class="code" href="rdrand_8h.html">rdrand.h</a>"</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "<a class="code" href="cpu_8h.html">cpu.h</a>"</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="comment">// This file (and friends) provides both RDRAND and RDSEED. They were added at</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</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="l00012"></a><span class="lineno"> 12</span> <span class="comment">// to select an implementation or "throw NotImplemented". The class does not</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// determine if RDRAND or RDSEED are available at runtime. If not available,</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// then a SIGILL will result. Users of the classes should call HasRDRAND()</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// or HasRDSEED() to determine if a generator is available.</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// The original classes accepted a retry count. Retries were superflous for</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// RDRAND, and RDSEED encountered a failure about 1 in 256 bytes depending</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// on the processor. Retries were removed at Crypto++ 6.0 because</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// GenerateBlock unconditionally retries and always fulfills the request.</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">/////////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">/////////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// For Linux, NASM is optional. Run rdrand-nasm.sh, and then make</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// with "USE_NASM" like so: USE_NASM=1 make -j 4. The makefile</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// will add the appropriate defines when building rdrand.cpp,</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// and add the appropriate object file during link.</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="preprocessor">#if 0</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#define NASM_RDRAND_ASM_AVAILABLE 1</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#define NASM_RDSEED_ASM_AVAILABLE 1</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"></span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">/////////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">/////////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#if defined(CRYPTOPP_CPUID_AVAILABLE)</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor"># if defined(CRYPTOPP_MSC_VERSION)</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"># if (CRYPTOPP_MSC_VERSION >= 1700)</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"># define ALL_RDRAND_INTRIN_AVAILABLE 1</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"># else</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor"># define MASM_RDRAND_ASM_AVAILABLE 1</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor"># if (CRYPTOPP_MSC_VERSION >= 1800)</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor"># define ALL_RDSEED_INTRIN_AVAILABLE 1</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor"># else</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor"># define MASM_RDSEED_ASM_AVAILABLE 1</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor"># elif defined(CRYPTOPP_LLVM_CLANG_VERSION) || defined(CRYPTOPP_APPLE_CLANG_VERSION)</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor"># if defined(__RDRND__)</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor"># define ALL_RDRAND_INTRIN_AVAILABLE 1</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor"># else</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"># define GCC_RDRAND_ASM_AVAILABLE 1</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor"># if defined(__RDSEED__)</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor"># define ALL_RDSEED_INTRIN_AVAILABLE 1</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"># else</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"># define GCC_RDSEED_ASM_AVAILABLE 1</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor"># elif defined(__SUNPRO_CC)</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor"># if defined(__RDRND__) && (__SUNPRO_CC >= 0x5130)</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor"># define ALL_RDRAND_INTRIN_AVAILABLE 1</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor"># elif (__SUNPRO_CC >= 0x5100)</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor"># define GCC_RDRAND_ASM_AVAILABLE 1</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor"># if defined(__RDSEED__) && (__SUNPRO_CC >= 0x5140)</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor"># define ALL_RDSEED_INTRIN_AVAILABLE 1</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"># elif (__SUNPRO_CC >= 0x5100)</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor"># define GCC_RDSEED_ASM_AVAILABLE 1</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor"># elif defined(CRYPTOPP_GCC_VERSION)</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"># if defined(__RDRND__) && (CRYPTOPP_GCC_VERSION >= 40700) && !defined(__OPTIMIZE__)</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor"># define ALL_RDRAND_INTRIN_AVAILABLE 1</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"># else</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor"># define GCC_RDRAND_ASM_AVAILABLE 1</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"># if defined(__RDSEED__) && (CRYPTOPP_GCC_VERSION >= 40800) && !defined(__OPTIMIZE__)</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor"># define ALL_RDSEED_INTRIN_AVAILABLE 1</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor"># else</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor"># define GCC_RDSEED_ASM_AVAILABLE 1</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#endif</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">/////////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment">/////////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"></span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor">#if (ALL_RDRAND_INTRIN_AVAILABLE || ALL_RDSEED_INTRIN_AVAILABLE)</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor"># include <immintrin.h></span> <span class="comment">// rdrand, MSC, ICC, GCC, and SunCC</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor"># if defined(__GNUC__) && (CRYPTOPP_GCC_VERSION >= 40700)</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="preprocessor"># include <x86intrin.h></span> <span class="comment">// rdseed for some compilers, like GCC</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor"># if defined(__has_include)</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor"># if __has_include(<x86intrin.h>)</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor"># include <x86intrin.h></span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor">#endif</span></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">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> byte;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="preprocessor">#if MASM_RDRAND_ASM_AVAILABLE</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">void</span> CRYPTOPP_FASTCALL MASM_RDRAND_GenerateBlock(byte*, <span class="keywordtype">size_t</span>);</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor">#if MASM_RDSEED_ASM_AVAILABLE</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">void</span> CRYPTOPP_FASTCALL MASM_RDSEED_GenerateBlock(byte*, <span class="keywordtype">size_t</span>);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="preprocessor">#if NASM_RDRAND_ASM_AVAILABLE</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">void</span> NASM_RDRAND_GenerateBlock(byte*, <span class="keywordtype">size_t</span>);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="preprocessor">#if NASM_RDSEED_ASM_AVAILABLE</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">void</span> NASM_RDSEED_GenerateBlock(byte*, <span class="keywordtype">size_t</span>);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"></span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment">/////////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment">/////////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment"></span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor">#if defined(CRYPTOPP_CPUID_AVAILABLE)</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment">// Fills 4 bytes</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> RDRAND32(<span class="keywordtype">void</span>* output)</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> {</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="preprocessor">#if defined(__SUNPRO_CC)</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  __asm__ __volatile__</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  (</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="stringliteral">"1:\n"</span></div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="stringliteral">".byte 0x0f, 0xc7, 0xf0;\n"</span></div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="stringliteral">"jnc 1b;\n"</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word32*>(output))</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  : : <span class="stringliteral">"cc"</span></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">#elif defined(GCC_RDRAND_ASM_AVAILABLE) && (CRYPTOPP_GCC_VERSION >= 40700)</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  __asm__ __volatile__</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  (</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  INTEL_NOPREFIX</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  ASL(1)</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  AS1(rdrand eax)</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  ASJ(jnc, 1, b)</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  ATT_NOPREFIX</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word32*>(output))</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  : : <span class="stringliteral">"cc"</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  );</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="preprocessor">#elif defined(GCC_RDRAND_ASM_AVAILABLE) && (CRYPTOPP_GCC_VERSION >= 30200)</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  __asm__ __volatile__</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  (</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="stringliteral">"1:\n"</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="stringliteral">".byte 0x0f, 0xc7, 0xf0;\n"</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="stringliteral">"jnc 1b;\n"</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word32*>(output))</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  : : <span class="stringliteral">"cc"</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  );</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="preprocessor">#elif defined(ALL_RDRAND_INTRIN_AVAILABLE)</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">while</span>(!_rdrand32_step(reinterpret_cast<word32*>(output))) {}</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="comment">// RDRAND not detected at compile time, or no suitable compiler found</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  CRYPTOPP_UNUSED(output);</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">throw</span> <a class="code" href="class_not_implemented.html">NotImplemented</a>(<span class="stringliteral">"RDRAND: failed to find an implementation"</span>);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> }</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="preprocessor">#if CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X32</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment">// Fills 8 bytes</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> RDRAND64(<span class="keywordtype">void</span>* output)</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> {</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="preprocessor">#if defined(__SUNPRO_CC) && (__SUNPRO_CC >= 0x5100)</span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  __asm__ __volatile__</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  (</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="stringliteral">"1:\n"</span></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="stringliteral">".byte 0x48, 0x0f, 0xc7, 0xf0;\n"</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="stringliteral">"jnc 1b;\n"</span></div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word64*>(output))</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  : : <span class="stringliteral">"cc"</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  );</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="preprocessor">#elif defined(GCC_RDRAND_ASM_AVAILABLE) && (CRYPTOPP_GCC_VERSION >= 40700)</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  __asm__ __volatile__</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  (</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  INTEL_NOPREFIX</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  ASL(1)</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  AS1(rdrand rax)</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  ASJ(jnc, 1, b)</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  ATT_NOPREFIX</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word64*>(output))</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  : : <span class="stringliteral">"cc"</span></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="preprocessor">#elif defined(GCC_RDRAND_ASM_AVAILABLE) && (CRYPTOPP_GCC_VERSION >= 30200)</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  __asm__ __volatile__</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  (</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="stringliteral">"1:\n"</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="stringliteral">".byte 0x48, 0x0f, 0xc7, 0xf0;\n"</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="stringliteral">"jnc 1b;\n"</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word64*>(output))</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  : : <span class="stringliteral">"cc"</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  );</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="preprocessor">#elif defined(ALL_RDRAND_INTRIN_AVAILABLE)</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">while</span>(!_rdrand64_step(reinterpret_cast<unsigned long long*>(output))) {}</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="comment">// RDRAND not detected at compile time, or no suitable compiler found</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  CRYPTOPP_UNUSED(output);</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">throw</span> <a class="code" href="class_not_implemented.html">NotImplemented</a>(<span class="stringliteral">"RDRAND: failed to find an implementation"</span>);</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> }</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor">#endif // CRYPTOPP_BOOL_X64, CRYPTOPP_BOOL_X32 and RDRAND64</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> </div><div class="line"><a name="l00209"></a><span class="lineno"><a class="line" href="class_r_d_r_a_n_d.html#a0a76d2b9a7fa812ab643a1b162fbff0d"> 209</a></span> <a class="code" href="class_r_d_r_a_n_d.html#a0a76d2b9a7fa812ab643a1b162fbff0d">RDRAND::RDRAND</a>()</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> {</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">if</span> (!<a class="code" href="cpu_8h.html#a5076f994ec8575113a191accc4a8376e">HasRDRAND</a>())</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">throw</span> <a class="code" href="class_r_d_r_a_n_d___err.html">RDRAND_Err</a>(<span class="stringliteral">"HasRDRAND"</span>);</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> </div><div class="line"><a name="l00215"></a><span class="lineno"><a class="line" href="class_r_d_r_a_n_d.html#a3ea6b8b0fefee89c9273b95021b0a17f"> 215</a></span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_r_a_n_d.html#a3ea6b8b0fefee89c9273b95021b0a17f">RDRAND::GenerateBlock</a>(byte *output, <span class="keywordtype">size_t</span> size)</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> {</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>((output && size) || !(output || size));</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">if</span> (size == 0) <span class="keywordflow">return</span>;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="preprocessor">#if defined(NASM_RDRAND_ASM_AVAILABLE)</span></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  NASM_RDRAND_GenerateBlock(output, size);</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="preprocessor">#elif defined(MASM_RDRAND_ASM_AVAILABLE)</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  MASM_RDRAND_GenerateBlock(output, size);</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="preprocessor">#elif CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X32</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordtype">size_t</span> i = 0;</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">for</span> (i = 0; i < size/8; i++)</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  RDRAND64(reinterpret_cast<word64*>(output)+i);</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  output += i*8;</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  size -= i*8;</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">if</span> (size)</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  {</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  word64 val;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  RDRAND64(&val);</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  ::memcpy(output, &val, size);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  }</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="preprocessor">#elif CRYPTOPP_BOOL_X86</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordtype">size_t</span> i = 0;</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">for</span> (i = 0; i < size/4; i++)</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  RDRAND32(reinterpret_cast<word32*>(output)+i);</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  output += i*4;</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  size -= i*4;</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">if</span> (size)</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  {</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  word32 val;</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  RDRAND32(&val);</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  ::memcpy(output, &val, size);</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  }</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="comment">// RDRAND not detected at compile time, or no suitable compiler found</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  CRYPTOPP_UNUSED(output);</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">throw</span> <a class="code" href="class_not_implemented.html">NotImplemented</a>(<span class="stringliteral">"RDRAND: failed to find a suitable implementation"</span>);</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> }</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div><div class="line"><a name="l00263"></a><span class="lineno"><a class="line" href="class_r_d_r_a_n_d.html#a7e3a9673e64edef43a4608c3bc39a023"> 263</a></span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_r_a_n_d.html#a7e3a9673e64edef43a4608c3bc39a023">RDRAND::DiscardBytes</a>(<span class="keywordtype">size_t</span> n)</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> {</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="comment">// RoundUpToMultipleOf is used because a full word is read, and its cheaper</span></div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="comment">// to discard full words. There's no sense in dealing with tail bytes.</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <a class="code" href="class_fixed_size_sec_block.html">FixedSizeSecBlock<word64, 16></a> discard;</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  n = <a class="code" href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a>(n, <span class="keyword">sizeof</span>(word64));</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="keywordtype">size_t</span> count = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(n, discard.<a class="code" href="class_sec_block.html#a93e1256d8021ba4ab9007ea4e19ae8c2">SizeInBytes</a>());</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordflow">while</span> (count)</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  {</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <a class="code" href="class_r_d_r_a_n_d.html#a3ea6b8b0fefee89c9273b95021b0a17f">GenerateBlock</a>(discard.<a class="code" href="class_sec_block.html#a5565f51350846fb7224720c403674216">BytePtr</a>(), count);</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  n -= count;</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  count = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(n, discard.<a class="code" href="class_sec_block.html#a93e1256d8021ba4ab9007ea4e19ae8c2">SizeInBytes</a>());</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  }</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> }</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment"></span></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment">/////////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="comment">/////////////////////////////////////////////////////////////////////</span></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="comment"></span></div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="comment">// Fills 4 bytes</span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> RDSEED32(<span class="keywordtype">void</span>* output)</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span> {</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="preprocessor">#if defined(__SUNPRO_CC)</span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  __asm__ __volatile__</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  (</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="stringliteral">"1:\n"</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="stringliteral">".byte 0x0f, 0xc7, 0xf8;\n"</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="stringliteral">"jnc 1b;\n"</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word32*>(output))</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  : : <span class="stringliteral">"cc"</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  );</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="preprocessor">#elif defined(GCC_RDSEED_ASM_AVAILABLE) && (CRYPTOPP_GCC_VERSION >= 40800)</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  __asm__ __volatile__</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  (</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  INTEL_NOPREFIX</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  ASL(1)</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  AS1(rdseed eax)</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  ASJ(jnc, 1, b)</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  ATT_NOPREFIX</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word32*>(output))</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  : : <span class="stringliteral">"cc"</span></div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  );</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="preprocessor">#elif defined(GCC_RDSEED_ASM_AVAILABLE) && (CRYPTOPP_GCC_VERSION >= 30200)</span></div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  __asm__ __volatile__</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  (</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="stringliteral">"1:\n"</span></div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="stringliteral">".byte 0x0f, 0xc7, 0xf8;\n"</span></div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="stringliteral">"jnc 1b;\n"</span></div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word32*>(output))</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  : : <span class="stringliteral">"cc"</span></div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  );</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="preprocessor">#elif defined(ALL_RDSEED_INTRIN_AVAILABLE)</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">while</span>(!_rdseed32_step(reinterpret_cast<word32*>(output))) {}</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">// RDSEED not detected at compile time, or no suitable compiler found</span></div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  CRYPTOPP_UNUSED(output);</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordflow">throw</span> <a class="code" href="class_not_implemented.html">NotImplemented</a>(<span class="stringliteral">"RDSEED: failed to find an implementation"</span>);</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span> }</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="preprocessor">#if CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X32</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="comment">// Fills 8 bytes</span></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> RDSEED64(<span class="keywordtype">void</span>* output)</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span> {</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="preprocessor">#if defined(__SUNPRO_CC) && (__SUNPRO_CC >= 0x5100)</span></div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  __asm__ __volatile__</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  (</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="stringliteral">"1:\n"</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="stringliteral">".byte 0x48, 0x0f, 0xc7, 0xf8;\n"</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="stringliteral">"jnc 1b;\n"</span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word64*>(output))</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  : : <span class="stringliteral">"cc"</span></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  );</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="preprocessor">#elif defined(GCC_RDSEED_ASM_AVAILABLE) && (CRYPTOPP_GCC_VERSION >= 40800)</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  __asm__ __volatile__</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  (</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  INTEL_NOPREFIX</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  ASL(1)</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  AS1(rdseed rax)</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  ASJ(jnc, 1, b)</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  ATT_NOPREFIX</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word64*>(output))</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  : : <span class="stringliteral">"cc"</span></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  );</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="preprocessor">#elif defined(GCC_RDSEED_ASM_AVAILABLE) && (CRYPTOPP_GCC_VERSION >= 30200)</span></div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  __asm__ __volatile__</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  (</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="stringliteral">"1:\n"</span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="stringliteral">".byte 0x48, 0x0f, 0xc7, 0xf8;\n"</span></div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="stringliteral">"jnc 1b;\n"</span></div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  : <span class="stringliteral">"=a"</span> (*reinterpret_cast<word64*>(output))</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  : : <span class="stringliteral">"cc"</span></div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  );</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="preprocessor">#elif defined(ALL_RDSEED_INTRIN_AVAILABLE)</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">while</span>(!_rdseed64_step(reinterpret_cast<unsigned long long*>(output))) {}</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="comment">// RDSEED not detected at compile time, or no suitable compiler found</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  CRYPTOPP_UNUSED(output);</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">throw</span> <a class="code" href="class_not_implemented.html">NotImplemented</a>(<span class="stringliteral">"RDSEED: failed to find an implementation"</span>);</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span> }</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="preprocessor">#endif // CRYPTOPP_BOOL_X64 and RDSEED64</span></div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> </div><div class="line"><a name="l00366"></a><span class="lineno"><a class="line" href="class_r_d_s_e_e_d.html#a2269da427f4978fc8b2e20e669882f42"> 366</a></span> <a class="code" href="class_r_d_s_e_e_d.html#a2269da427f4978fc8b2e20e669882f42">RDSEED::RDSEED</a>()</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span> {</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordflow">if</span> (!<a class="code" href="cpu_8h.html#af7125da1236a58ece8e109350009711e">HasRDSEED</a>())</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">throw</span> <a class="code" href="class_r_d_s_e_e_d___err.html">RDSEED_Err</a>(<span class="stringliteral">"HasRDSEED"</span>);</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span> }</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span> </div><div class="line"><a name="l00372"></a><span class="lineno"><a class="line" href="class_r_d_s_e_e_d.html#a2a344e8a2280743c37b143204fdbe029"> 372</a></span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_s_e_e_d.html#a2a344e8a2280743c37b143204fdbe029">RDSEED::GenerateBlock</a>(byte *output, <span class="keywordtype">size_t</span> size)</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span> {</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>((output && size) || !(output || size));</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keywordflow">if</span> (size == 0) <span class="keywordflow">return</span>;</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> </div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span> <span class="preprocessor">#if defined(NASM_RDSEED_ASM_AVAILABLE)</span></div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span> </div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  NASM_RDSEED_GenerateBlock(output, size);</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> </div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="preprocessor">#elif defined(MASM_RDSEED_ASM_AVAILABLE)</span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span> </div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  MASM_RDSEED_GenerateBlock(output, size);</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> </div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="preprocessor">#elif CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X32</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordtype">size_t</span> i = 0;</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keywordflow">for</span> (i = 0; i < size/8; i++)</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  RDSEED64(reinterpret_cast<word64*>(output)+i);</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span> </div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  output += i*8;</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  size -= i*8;</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span> </div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keywordflow">if</span> (size)</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  {</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  word64 val;</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  RDSEED64(&val);</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  ::memcpy(output, &val, size);</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  }</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span> <span class="preprocessor">#elif CRYPTOPP_BOOL_X86</span></div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="keywordtype">size_t</span> i = 0;</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">for</span> (i = 0; i < size/4; i++)</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  RDSEED32(reinterpret_cast<word32*>(output)+i);</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> </div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  output += i*4;</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  size -= i*4;</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span> </div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">if</span> (size)</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  {</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  word32 val;</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  RDSEED32(&val);</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  ::memcpy(output, &val, size);</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  }</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="preprocessor">#endif // CRYPTOPP_BOOL_X64, CRYPTOPP_BOOL_X32 and RDSEED64</span></div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span> }</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div><div class="line"><a name="l00416"></a><span class="lineno"><a class="line" href="class_r_d_s_e_e_d.html#a3249f370eba551e6fc575b103933bf64"> 416</a></span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_s_e_e_d.html#a3249f370eba551e6fc575b103933bf64">RDSEED::DiscardBytes</a>(<span class="keywordtype">size_t</span> n)</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span> {</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="comment">// RoundUpToMultipleOf is used because a full word is read, and its cheaper</span></div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="comment">// to discard full words. There's no sense in dealing with tail bytes.</span></div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <a class="code" href="class_fixed_size_sec_block.html">FixedSizeSecBlock<word64, 16></a> discard;</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  n = <a class="code" href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a>(n, <span class="keyword">sizeof</span>(word64));</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> </div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keywordtype">size_t</span> count = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(n, discard.<a class="code" href="class_sec_block.html#a93e1256d8021ba4ab9007ea4e19ae8c2">SizeInBytes</a>());</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keywordflow">while</span> (count)</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  {</div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <a class="code" href="class_r_d_s_e_e_d.html#a2a344e8a2280743c37b143204fdbe029">GenerateBlock</a>(discard.<a class="code" href="class_sec_block.html#a5565f51350846fb7224720c403674216">BytePtr</a>(), count);</div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  n -= count;</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  count = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(n, discard.<a class="code" href="class_sec_block.html#a93e1256d8021ba4ab9007ea4e19ae8c2">SizeInBytes</a>());</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  }</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span> }</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span> </div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span> <span class="preprocessor">#else // CRYPTOPP_CPUID_AVAILABLE</span></div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span> </div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> <a class="code" href="class_r_d_r_a_n_d.html#a0a76d2b9a7fa812ab643a1b162fbff0d">RDRAND::RDRAND</a>()</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span> {</div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="keywordflow">throw</span> <a class="code" href="class_r_d_r_a_n_d___err.html">RDRAND_Err</a>(<span class="stringliteral">"HasRDRAND"</span>);</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span> }</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span> </div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_r_a_n_d.html#a3ea6b8b0fefee89c9273b95021b0a17f">RDRAND::GenerateBlock</a>(byte *output, <span class="keywordtype">size_t</span> size)</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span> {</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  CRYPTOPP_UNUSED(output); CRYPTOPP_UNUSED(size);</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> }</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span> </div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_r_a_n_d.html#a7e3a9673e64edef43a4608c3bc39a023">RDRAND::DiscardBytes</a>(<span class="keywordtype">size_t</span> n)</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span> {</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  CRYPTOPP_UNUSED(n);</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span> }</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span> </div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <a class="code" href="class_r_d_s_e_e_d.html#a2269da427f4978fc8b2e20e669882f42">RDSEED::RDSEED</a>()</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> {</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="keywordflow">throw</span> <a class="code" href="class_r_d_s_e_e_d___err.html">RDSEED_Err</a>(<span class="stringliteral">"HasRDSEED"</span>);</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span> }</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span> </div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_s_e_e_d.html#a2a344e8a2280743c37b143204fdbe029">RDSEED::GenerateBlock</a>(byte *output, <span class="keywordtype">size_t</span> size)</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span> {</div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  CRYPTOPP_UNUSED(output); CRYPTOPP_UNUSED(size);</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span> }</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span> </div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="keywordtype">void</span> <a class="code" href="class_r_d_s_e_e_d.html#a3249f370eba551e6fc575b103933bf64">RDSEED::DiscardBytes</a>(<span class="keywordtype">size_t</span> n)</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span> {</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  CRYPTOPP_UNUSED(n);</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span> }</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span> </div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span> </div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span> NAMESPACE_END</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_sec_block_html_a93e1256d8021ba4ab9007ea4e19ae8c2"><div class="ttname"><a href="class_sec_block.html#a93e1256d8021ba4ab9007ea4e19ae8c2">SecBlock::SizeInBytes</a></div><div class="ttdeci">size_type SizeInBytes() const</div><div class="ttdoc">Provides the number of bytes in the SecBlock. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00575">secblock.h:575</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="config_8h_html"><div class="ttname"><a href="config_8h.html">config.h</a></div><div class="ttdoc">Library configuration file. </div></div>
<div class="ttc" id="rdrand_8h_html"><div class="ttname"><a href="rdrand_8h.html">rdrand.h</a></div><div class="ttdoc">Classes for RDRAND and RDSEED. </div></div>
<div class="ttc" id="cpu_8h_html_a5076f994ec8575113a191accc4a8376e"><div class="ttname"><a href="cpu_8h.html#a5076f994ec8575113a191accc4a8376e">HasRDRAND</a></div><div class="ttdeci">bool HasRDRAND()</div><div class="ttdoc">Determines RDRAND availability. </div><div class="ttdef"><b>Definition:</b> <a href="cpu_8h_source.html#l00217">cpu.h:217</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="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="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_not_implemented_html"><div class="ttname"><a href="class_not_implemented.html">NotImplemented</a></div><div class="ttdoc">A method was called which was not implemented. </div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00220">cryptlib.h:220</a></div></div>
<div class="ttc" id="cpu_8h_html_af7125da1236a58ece8e109350009711e"><div class="ttname"><a href="cpu_8h.html#af7125da1236a58ece8e109350009711e">HasRDSEED</a></div><div class="ttdeci">bool HasRDSEED()</div><div class="ttdoc">Determines RDSEED availability. </div><div class="ttdef"><b>Definition:</b> <a href="cpu_8h_source.html#l00228">cpu.h:228</a></div></div>
<div class="ttc" id="pch_8h_html"><div class="ttname"><a href="pch_8h.html">pch.h</a></div><div class="ttdoc">Precompiled header file. </div></div>
<div class="ttc" id="class_fixed_size_sec_block_html"><div class="ttname"><a href="class_fixed_size_sec_block.html">FixedSizeSecBlock</a></div><div class="ttdoc">Fixed size stack-based SecBlock. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00841">secblock.h:841</a></div></div>
<div class="ttc" id="misc_8h_html_abe412b0409249cb54899e97bc7d86424"><div class="ttname"><a href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a></div><div class="ttdeci">const T & STDMIN(const T &a, const T &b)</div><div class="ttdoc">Replacement function for std::min. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00507">misc.h:507</a></div></div>
<div class="ttc" id="trap_8h_html_adf3b392588bc94cbeae9f415a78c7b95"><div class="ttname"><a href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a></div><div class="ttdeci">#define CRYPTOPP_ASSERT(exp)</div><div class="ttdoc">Debugging and diagnostic assertion. </div><div class="ttdef"><b>Definition:</b> <a href="trap_8h_source.html#l00060">trap.h:60</a></div></div>
<div class="ttc" id="class_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="cpu_8h_html"><div class="ttname"><a href="cpu_8h.html">cpu.h</a></div><div class="ttdoc">Functions for CPU features and intrinsics. </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="misc_8h_html_a57a219d44f45272a1f3b3f17a656000a"><div class="ttname"><a href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a></div><div class="ttdeci">T1 RoundUpToMultipleOf(const T1 &n, const T2 &m)</div><div class="ttdoc">Rounds a value up to a multiple of a second value. </div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00971">misc.h:971</a></div></div>
<div class="ttc" id="namespace_crypto_p_p_html"><div class="ttname"><a href="namespace_crypto_p_p.html">CryptoPP</a></div><div class="ttdoc">Crypto++ library namespace. </div></div>
<div class="ttc" id="class_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>
<div class="ttc" id="class_sec_block_html_a5565f51350846fb7224720c403674216"><div class="ttname"><a href="class_sec_block.html#a5565f51350846fb7224720c403674216">SecBlock::BytePtr</a></div><div class="ttdeci">byte * BytePtr()</div><div class="ttdoc">Provides a byte pointer to the first element in the memory block. </div><div class="ttdef"><b>Definition:</b> <a href="secblock_8h_source.html#l00568">secblock.h:568</a></div></div>
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