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<a href="random_8cpp.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">// Copyright (c) 2009-2010 Satoshi Nakamoto</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright (c) 2009-2015 The Bitcoin Core developers</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Distributed under the MIT software license, see the accompanying</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// file COPYING or http://www.opensource.org/licenses/mit-license.php.</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> </div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include "<a class="code" href="random_8h.html">random.h</a>"</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "<a class="code" href="cleanse_8h.html">support/cleanse.h</a>"</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#ifdef WIN32</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "<a class="code" href="compat_8h.html">compat.h</a>"</span> <span class="comment">// for Windows API</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "<a class="code" href="serialize_8h.html">serialize.h</a>"</span> <span class="comment">// for begin_ptr(vec)</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "<a class="code" href="util_8h.html">util.h</a>"</span> <span class="comment">// for LogPrint()</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "<a class="code" href="utilstrencodings_8h.html">utilstrencodings.h</a>"</span> <span class="comment">// for GetTime()</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <limits></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#ifndef WIN32</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <sys/time.h></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#endif</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="preprocessor">#include <openssl/err.h></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <openssl/rand.h></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00025"></a><span class="lineno"><a class="line" href="random_8cpp.html#a4018f69d23d8c061fb5d2c7c4d72bf19"> 25</a></span> <span class="keyword">static</span> <span class="keyword">inline</span> int64_t <a class="code" href="random_8cpp.html#a4018f69d23d8c061fb5d2c7c4d72bf19">GetPerformanceCounter</a>()</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> {</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  int64_t nCounter = 0;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#ifdef WIN32</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  QueryPerformanceCounter((LARGE_INTEGER*)&nCounter);</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  timeval t;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  gettimeofday(&t, NULL);</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  nCounter = (int64_t)(t.tv_sec * 1000000 + t.tv_usec);</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordflow">return</span> nCounter;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> }</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="random_8h.html#ab699fbdf803610a4e2060fd87787f7e0"> 38</a></span> <span class="keywordtype">void</span> <a class="code" href="random_8cpp.html#ab699fbdf803610a4e2060fd87787f7e0">RandAddSeed</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="comment">// Seed with CPU performance counter</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  int64_t nCounter = <a class="code" href="random_8cpp.html#a4018f69d23d8c061fb5d2c7c4d72bf19">GetPerformanceCounter</a>();</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  RAND_add(&nCounter, <span class="keyword">sizeof</span>(nCounter), 1.5);</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <a class="code" href="cleanse_8cpp.html#a5a4afb85dd16ecc1f6019c782db78663">memory_cleanse</a>((<span class="keywordtype">void</span>*)&nCounter, <span class="keyword">sizeof</span>(nCounter));</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> }</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="random_8h.html#a786af12a87491f8dc24351d93b9833b6"> 46</a></span> <span class="keywordtype">void</span> <a class="code" href="random_8cpp.html#a786af12a87491f8dc24351d93b9833b6">RandAddSeedPerfmon</a>()</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> {</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="random_8cpp.html#ab699fbdf803610a4e2060fd87787f7e0">RandAddSeed</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="preprocessor">#ifdef WIN32</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// Don't need this on Linux, OpenSSL automatically uses /dev/urandom</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">// Seed with the entire set of perfmon data</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// This can take up to 2 seconds, so only do it every 10 minutes</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">static</span> int64_t nLastPerfmon;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (<a class="code" href="utiltime_8cpp.html#a46fac5fba8ba905b5f9acb364f5d8c6f">GetTime</a>() < nLastPerfmon + 10 * 60)</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  nLastPerfmon = <a class="code" href="utiltime_8cpp.html#a46fac5fba8ba905b5f9acb364f5d8c6f">GetTime</a>();</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  std::vector<unsigned char> vData(250000, 0);</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">long</span> ret = 0;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> nSize = 0;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> nMaxSize = 10000000; <span class="comment">// Bail out at more than 10MB of performance data</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  nSize = vData.size();</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  ret = RegQueryValueExA(HKEY_PERFORMANCE_DATA, <span class="stringliteral">"Global"</span>, NULL, NULL, <a class="code" href="serialize_8h.html#a338401cffbfa31c80b8f64d232306254">begin_ptr</a>(vData), &nSize);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> (ret != ERROR_MORE_DATA || vData.size() >= nMaxSize)</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  vData.resize(std::max((vData.size() * 3) / 2, nMaxSize)); <span class="comment">// Grow size of buffer exponentially</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  RegCloseKey(HKEY_PERFORMANCE_DATA);</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">if</span> (ret == ERROR_SUCCESS) {</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  RAND_add(<a class="code" href="serialize_8h.html#a338401cffbfa31c80b8f64d232306254">begin_ptr</a>(vData), nSize, nSize / 100.0);</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <a class="code" href="cleanse_8cpp.html#a5a4afb85dd16ecc1f6019c782db78663">memory_cleanse</a>(<a class="code" href="serialize_8h.html#a338401cffbfa31c80b8f64d232306254">begin_ptr</a>(vData), nSize);</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <a class="code" href="util_8h.html#aab1f837a2366f424bdc996fdf6352171">LogPrint</a>(<span class="stringliteral">"rand"</span>, <span class="stringliteral">"%s: %lu bytes\n"</span>, __func__, nSize);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> warned = <span class="keyword">false</span>; <span class="comment">// Warn only once</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">if</span> (!warned) {</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="util_8h.html#afc02c0a4258fedfb316be612bb659ba8">LogPrintf</a>(<span class="stringliteral">"%s: Warning: RegQueryValueExA(HKEY_PERFORMANCE_DATA) failed with code %i\n"</span>, __func__, ret);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  warned = <span class="keyword">true</span>;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  }</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> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> }</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div><div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="random_8h.html#ada0c29949c4d1ac0cc027d93c4771423"> 86</a></span> <span class="keywordtype">void</span> <a class="code" href="random_8cpp.html#ada0c29949c4d1ac0cc027d93c4771423">GetRandBytes</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* buf, <span class="keywordtype">int</span> num)</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> {</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (RAND_bytes(buf, num) != 1) {</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="util_8h.html#afc02c0a4258fedfb316be612bb659ba8">LogPrintf</a>(<span class="stringliteral">"%s: OpenSSL RAND_bytes() failed with error: %s\n"</span>, __func__, ERR_error_string(ERR_get_error(), NULL));</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  assert(<span class="keyword">false</span>);</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  }</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> }</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="random_8h.html#a27d9149d522b1fa87d84e5e9ca902aef"> 94</a></span> uint64_t <a class="code" href="random_8cpp.html#a27d9149d522b1fa87d84e5e9ca902aef">GetRand</a>(uint64_t nMax)</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> {</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">if</span> (nMax == 0)</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// The range of the random source must be a multiple of the modulus</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// to give every possible output value an equal possibility</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  uint64_t nRange = (std::numeric_limits<uint64_t>::max() / nMax) * nMax;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  uint64_t nRand = 0;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">do</span> {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="random_8cpp.html#ada0c29949c4d1ac0cc027d93c4771423">GetRandBytes</a>((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&nRand, <span class="keyword">sizeof</span>(nRand));</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  } <span class="keywordflow">while</span> (nRand >= nRange);</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">return</span> (nRand % nMax);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> }</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="random_8h.html#a0e44e088732172da6662db2d5e37d4b2"> 109</a></span> <span class="keywordtype">int</span> <a class="code" href="random_8cpp.html#a0e44e088732172da6662db2d5e37d4b2">GetRandInt</a>(<span class="keywordtype">int</span> nMax)</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> {</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> <a class="code" href="random_8cpp.html#a27d9149d522b1fa87d84e5e9ca902aef">GetRand</a>(nMax);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> }</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00114"></a><span class="lineno"><a class="line" href="random_8h.html#af3aedae75efabb170337a497457f7ecf"> 114</a></span> <a class="code" href="classuint256.html">uint256</a> <a class="code" href="random_8cpp.html#af3aedae75efabb170337a497457f7ecf">GetRandHash</a>()</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> {</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <a class="code" href="classuint256.html">uint256</a> hash;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <a class="code" href="random_8cpp.html#ada0c29949c4d1ac0cc027d93c4771423">GetRandBytes</a>((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&hash, <span class="keyword">sizeof</span>(hash));</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">return</span> hash;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> }</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div><div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="random_8h.html#ad679dcd7cb4960c49a8d400bcc23b0d0"> 121</a></span> uint32_t <a class="code" href="random_8cpp.html#ad679dcd7cb4960c49a8d400bcc23b0d0">insecure_rand_Rz</a> = 11;</div><div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="random_8h.html#a45e4e024616db2e96c5ffc34928c553b"> 122</a></span> uint32_t <a class="code" href="random_8cpp.html#a45e4e024616db2e96c5ffc34928c553b">insecure_rand_Rw</a> = 11;</div><div class="line"><a name="l00123"></a><span class="lineno"><a class="line" href="random_8h.html#abef4e13668f53ac5404c796462aed9b4"> 123</a></span> <span class="keywordtype">void</span> <a class="code" href="random_8cpp.html#aacea702dc3d4d2bcbbd5eb96d410417c">seed_insecure_rand</a>(<span class="keywordtype">bool</span> fDeterministic)</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">// The seed values have some unlikely fixed points which we avoid.</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">if</span> (fDeterministic) {</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="random_8cpp.html#ad679dcd7cb4960c49a8d400bcc23b0d0">insecure_rand_Rz</a> = <a class="code" href="random_8cpp.html#a45e4e024616db2e96c5ffc34928c553b">insecure_rand_Rw</a> = 11;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  uint32_t tmp;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">do</span> {</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="random_8cpp.html#ada0c29949c4d1ac0cc027d93c4771423">GetRandBytes</a>((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&tmp, 4);</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  } <span class="keywordflow">while</span> (tmp == 0 || tmp == 0x9068ffffU);</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <a class="code" href="random_8cpp.html#ad679dcd7cb4960c49a8d400bcc23b0d0">insecure_rand_Rz</a> = tmp;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">do</span> {</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <a class="code" href="random_8cpp.html#ada0c29949c4d1ac0cc027d93c4771423">GetRandBytes</a>((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&tmp, 4);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  } <span class="keywordflow">while</span> (tmp == 0 || tmp == 0x464fffffU);</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="code" href="random_8cpp.html#a45e4e024616db2e96c5ffc34928c553b">insecure_rand_Rw</a> = tmp;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  }</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> }</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00141"></a><span class="lineno"><a class="line" href="classInsecureRand.html#a1554ac55ef2ad9b78925411a135589ff"> 141</a></span> <a class="code" href="classInsecureRand.html#a1554ac55ef2ad9b78925411a135589ff">InsecureRand::InsecureRand</a>(<span class="keywordtype">bool</span> _fDeterministic)</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  : nRz(11),</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  nRw(11),</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  fDeterministic(_fDeterministic)</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> {</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// The seed values have some unlikely fixed points which we avoid.</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">if</span>(<a class="code" href="classInsecureRand.html#ae9bed2d175ff061e26e5596e30305011">fDeterministic</a>) <span class="keywordflow">return</span>;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  uint32_t nTmp;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">do</span> {</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="random_8cpp.html#ada0c29949c4d1ac0cc027d93c4771423">GetRandBytes</a>((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&nTmp, 4);</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  } <span class="keywordflow">while</span> (nTmp == 0 || nTmp == 0x9068ffffU);</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <a class="code" href="classInsecureRand.html#a576e38fb46fbdebc9d6daeb546c36113">nRz</a> = nTmp;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">do</span> {</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="random_8cpp.html#ada0c29949c4d1ac0cc027d93c4771423">GetRandBytes</a>((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&nTmp, 4);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  } <span class="keywordflow">while</span> (nTmp == 0 || nTmp == 0x464fffffU);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="classInsecureRand.html#a0baa5d4f04bcb55d1595bf79d8c24462">nRw</a> = nTmp;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> }</div><div class="ttc" id="random_8cpp_html_af3aedae75efabb170337a497457f7ecf"><div class="ttname"><a href="random_8cpp.html#af3aedae75efabb170337a497457f7ecf">GetRandHash</a></div><div class="ttdeci">uint256 GetRandHash()</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00114">random.cpp:114</a></div></div>
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<div class="ttc" id="random_8cpp_html_a0e44e088732172da6662db2d5e37d4b2"><div class="ttname"><a href="random_8cpp.html#a0e44e088732172da6662db2d5e37d4b2">GetRandInt</a></div><div class="ttdeci">int GetRandInt(int nMax)</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00109">random.cpp:109</a></div></div>
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<div class="ttc" id="random_8cpp_html_a786af12a87491f8dc24351d93b9833b6"><div class="ttname"><a href="random_8cpp.html#a786af12a87491f8dc24351d93b9833b6">RandAddSeedPerfmon</a></div><div class="ttdeci">void RandAddSeedPerfmon()</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00046">random.cpp:46</a></div></div>
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<div class="ttc" id="random_8cpp_html_a4018f69d23d8c061fb5d2c7c4d72bf19"><div class="ttname"><a href="random_8cpp.html#a4018f69d23d8c061fb5d2c7c4d72bf19">GetPerformanceCounter</a></div><div class="ttdeci">static int64_t GetPerformanceCounter()</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00025">random.cpp:25</a></div></div>
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<div class="ttc" id="utilstrencodings_8h_html"><div class="ttname"><a href="utilstrencodings_8h.html">utilstrencodings.h</a></div></div>
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<div class="ttc" id="cleanse_8cpp_html_a5a4afb85dd16ecc1f6019c782db78663"><div class="ttname"><a href="cleanse_8cpp.html#a5a4afb85dd16ecc1f6019c782db78663">memory_cleanse</a></div><div class="ttdeci">void memory_cleanse(void *ptr, size_t len)</div><div class="ttdef"><b>Definition:</b> <a href="cleanse_8cpp_source.html#l00010">cleanse.cpp:10</a></div></div>
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<div class="ttc" id="util_8h_html_afc02c0a4258fedfb316be612bb659ba8"><div class="ttname"><a href="util_8h.html#afc02c0a4258fedfb316be612bb659ba8">LogPrintf</a></div><div class="ttdeci">#define LogPrintf(...)</div><div class="ttdef"><b>Definition:</b> <a href="util_8h_source.html#l00098">util.h:98</a></div></div>
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<div class="ttc" id="serialize_8h_html"><div class="ttname"><a href="serialize_8h.html">serialize.h</a></div></div>
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<div class="ttc" id="util_8h_html_aab1f837a2366f424bdc996fdf6352171"><div class="ttname"><a href="util_8h.html#aab1f837a2366f424bdc996fdf6352171">LogPrint</a></div><div class="ttdeci">static int LogPrint(const char *category, const char *format)</div><div class="ttdef"><b>Definition:</b> <a href="util_8h_source.html#l00126">util.h:126</a></div></div>
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<div class="ttc" id="util_8h_html"><div class="ttname"><a href="util_8h.html">util.h</a></div></div>
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<div class="ttc" id="random_8cpp_html_a45e4e024616db2e96c5ffc34928c553b"><div class="ttname"><a href="random_8cpp.html#a45e4e024616db2e96c5ffc34928c553b">insecure_rand_Rw</a></div><div class="ttdeci">uint32_t insecure_rand_Rw</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00122">random.cpp:122</a></div></div>
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<div class="ttc" id="compat_8h_html"><div class="ttname"><a href="compat_8h.html">compat.h</a></div></div>
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<div class="ttc" id="serialize_8h_html_a338401cffbfa31c80b8f64d232306254"><div class="ttname"><a href="serialize_8h.html#a338401cffbfa31c80b8f64d232306254">begin_ptr</a></div><div class="ttdeci">V::value_type * begin_ptr(V &v)</div><div class="ttdef"><b>Definition:</b> <a href="serialize_8h_source.html#l00054">serialize.h:54</a></div></div>
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<div class="ttc" id="random_8cpp_html_aacea702dc3d4d2bcbbd5eb96d410417c"><div class="ttname"><a href="random_8cpp.html#aacea702dc3d4d2bcbbd5eb96d410417c">seed_insecure_rand</a></div><div class="ttdeci">void seed_insecure_rand(bool fDeterministic)</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00123">random.cpp:123</a></div></div>
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<div class="ttc" id="classuint256_html"><div class="ttname"><a href="classuint256.html">uint256</a></div><div class="ttdef"><b>Definition:</b> <a href="uint256_8h_source.html#l00114">uint256.h:114</a></div></div>
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<div class="ttc" id="classInsecureRand_html_ae9bed2d175ff061e26e5596e30305011"><div class="ttname"><a href="classInsecureRand.html#ae9bed2d175ff061e26e5596e30305011">InsecureRand::fDeterministic</a></div><div class="ttdeci">bool fDeterministic</div><div class="ttdef"><b>Definition:</b> <a href="random_8h_source.html#l00057">random.h:57</a></div></div>
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<div class="ttc" id="cleanse_8h_html"><div class="ttname"><a href="cleanse_8h.html">cleanse.h</a></div></div>
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<div class="ttc" id="classInsecureRand_html_a576e38fb46fbdebc9d6daeb546c36113"><div class="ttname"><a href="classInsecureRand.html#a576e38fb46fbdebc9d6daeb546c36113">InsecureRand::nRz</a></div><div class="ttdeci">uint32_t nRz</div><div class="ttdef"><b>Definition:</b> <a href="random_8h_source.html#l00055">random.h:55</a></div></div>
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<div class="ttc" id="random_8cpp_html_ada0c29949c4d1ac0cc027d93c4771423"><div class="ttname"><a href="random_8cpp.html#ada0c29949c4d1ac0cc027d93c4771423">GetRandBytes</a></div><div class="ttdeci">void GetRandBytes(unsigned char *buf, int num)</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00086">random.cpp:86</a></div></div>
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<div class="ttc" id="random_8cpp_html_ab699fbdf803610a4e2060fd87787f7e0"><div class="ttname"><a href="random_8cpp.html#ab699fbdf803610a4e2060fd87787f7e0">RandAddSeed</a></div><div class="ttdeci">void RandAddSeed()</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00038">random.cpp:38</a></div></div>
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<div class="ttc" id="random_8h_html"><div class="ttname"><a href="random_8h.html">random.h</a></div></div>
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<div class="ttc" id="utiltime_8cpp_html_a46fac5fba8ba905b5f9acb364f5d8c6f"><div class="ttname"><a href="utiltime_8cpp.html#a46fac5fba8ba905b5f9acb364f5d8c6f">GetTime</a></div><div class="ttdeci">int64_t GetTime()</div><div class="ttdoc">For unit testing. </div><div class="ttdef"><b>Definition:</b> <a href="utiltime_8cpp_source.html#l00020">utiltime.cpp:20</a></div></div>
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<div class="ttc" id="classInsecureRand_html_a0baa5d4f04bcb55d1595bf79d8c24462"><div class="ttname"><a href="classInsecureRand.html#a0baa5d4f04bcb55d1595bf79d8c24462">InsecureRand::nRw</a></div><div class="ttdeci">uint32_t nRw</div><div class="ttdef"><b>Definition:</b> <a href="random_8h_source.html#l00056">random.h:56</a></div></div>
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<div class="ttc" id="classInsecureRand_html_a1554ac55ef2ad9b78925411a135589ff"><div class="ttname"><a href="classInsecureRand.html#a1554ac55ef2ad9b78925411a135589ff">InsecureRand::InsecureRand</a></div><div class="ttdeci">InsecureRand(bool _fDeterministic=false)</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00141">random.cpp:141</a></div></div>
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<div class="ttc" id="random_8cpp_html_ad679dcd7cb4960c49a8d400bcc23b0d0"><div class="ttname"><a href="random_8cpp.html#ad679dcd7cb4960c49a8d400bcc23b0d0">insecure_rand_Rz</a></div><div class="ttdeci">uint32_t insecure_rand_Rz</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00121">random.cpp:121</a></div></div>
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<div class="ttc" id="random_8cpp_html_a27d9149d522b1fa87d84e5e9ca902aef"><div class="ttname"><a href="random_8cpp.html#a27d9149d522b1fa87d84e5e9ca902aef">GetRand</a></div><div class="ttdeci">uint64_t GetRand(uint64_t nMax)</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00094">random.cpp:94</a></div></div>
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