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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: osrng.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="classes.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul></div><h1>osrng.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_OSRNG_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_OSRNG_H</span><a name="l00003"></a>00003 <span class="preprocessor"></span><a name="l00004"></a>00004 <span class="preprocessor">#include "config.h"</span><a name="l00005"></a>00005 <a name="l00006"></a>00006 <span class="preprocessor">#ifdef OS_RNG_AVAILABLE</span><a name="l00007"></a>00007 <span class="preprocessor"></span><a name="l00008"></a>00008 <span class="preprocessor">#include "randpool.h"</span><a name="l00009"></a>00009 <span class="preprocessor">#include "rng.h"</span><a name="l00010"></a>00010 <span class="preprocessor">#include "aes.h"</span><a name="l00011"></a>00011 <span class="preprocessor">#include "sha.h"</span><a name="l00012"></a>00012 <span class="preprocessor">#include "<a class="code" href="fips140_8h.html">fips140.h</a>"</span><a name="l00013"></a>00013 <a name="l00014"></a>00014 NAMESPACE_BEGIN(CryptoPP)<a name="l00015"></a>00015 <a name="l00016"></a>00016 <span class="comment">//! Exception class for Operating-System Random Number Generator.</span><a name="l00017"></a><a class="code" href="class_o_s___r_n_g___err.html">00017</a> <span class="comment"></span>class CRYPTOPP_DLL <a class="code" href="class_o_s___r_n_g___err.html" title="Exception class for Operating-System Random Number Generator.">OS_RNG_Err</a> : public <a class="code" href="class_exception.html" title="base class for all exceptions thrown by Crypto++">Exception</a><a name="l00018"></a>00018 {<a name="l00019"></a>00019 <span class="keyword">public</span>:<a name="l00020"></a>00020 <a class="code" href="class_o_s___r_n_g___err.html" title="Exception class for Operating-System Random Number Generator.">OS_RNG_Err</a>(<span class="keyword">const</span> std::string &operation);<a name="l00021"></a>00021 };<a name="l00022"></a>00022 <a name="l00023"></a>00023 <span class="preprocessor">#ifdef NONBLOCKING_RNG_AVAILABLE</span><a name="l00024"></a>00024 <span class="preprocessor"></span><a name="l00025"></a>00025 <span class="preprocessor">#ifdef CRYPTOPP_WIN32_AVAILABLE</span><a name="l00026"></a><a class="code" href="class_microsoft_crypto_provider.html">00026</a> <span class="preprocessor"></span><span class="keyword">class </span>CRYPTOPP_DLL <a class="code" href="class_microsoft_crypto_provider.html">MicrosoftCryptoProvider</a><a name="l00027"></a>00027 {<a name="l00028"></a>00028 <span class="keyword">public</span>:<a name="l00029"></a>00029 <a class="code" href="class_microsoft_crypto_provider.html">MicrosoftCryptoProvider</a>();<a name="l00030"></a>00030 ~<a class="code" href="class_microsoft_crypto_provider.html">MicrosoftCryptoProvider</a>();<a name="l00031"></a>00031 <span class="preprocessor">#if defined(_WIN64)</span><a name="l00032"></a>00032 <span class="preprocessor"></span> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> __int64 ProviderHandle; <span class="comment">// type HCRYPTPROV, avoid #include <windows.h></span><a name="l00033"></a>00033 <span class="preprocessor">#else</span><a name="l00034"></a><a class="code" href="class_microsoft_crypto_provider.html#b063aaa932b2e4da4b648e971ebb969b">00034</a> <span class="preprocessor"></span> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> ProviderHandle;<a name="l00035"></a>00035 <span class="preprocessor">#endif</span><a name="l00036"></a><a class="code" href="class_microsoft_crypto_provider.html#f2028181c1406ee7446a603e66dd06ab">00036</a> <span class="preprocessor"></span> ProviderHandle GetProviderHandle()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_hProvider;}<a name="l00037"></a>00037 <span class="keyword">private</span>:<a name="l00038"></a>00038 ProviderHandle m_hProvider;<a name="l00039"></a>00039 };<a name="l00040"></a>00040 <a name="l00041"></a>00041 <span class="preprocessor">#pragma comment(lib, "advapi32.lib")</span><a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#endif</span><a name="l00043"></a>00043 <span class="preprocessor"></span><span class="comment"></span><a name="l00044"></a>00044 <span class="comment">//! encapsulate CryptoAPI's CryptGenRandom or /dev/urandom</span><a name="l00045"></a><a class="code" href="class_nonblocking_rng.html">00045</a> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL NonblockingRng : <span class="keyword">public</span> <a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a><a name="l00046"></a>00046 {<a name="l00047"></a>00047 <span class="keyword">public</span>:<a name="l00048"></a>00048 NonblockingRng();<a name="l00049"></a>00049 ~NonblockingRng();<a name="l00050"></a>00050 <span class="keywordtype">void</span> <a class="code" href="class_random_number_generator.html#497145546d24e6d4abaf10b7e0f1ba17" title="generate random array of bytes">GenerateBlock</a>(byte *output, <span class="keywordtype">size_t</span> size);<a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="keyword">protected</span>:<a name="l00053"></a>00053 <span class="preprocessor">#ifdef CRYPTOPP_WIN32_AVAILABLE</span><a name="l00054"></a>00054 <span class="preprocessor"></span><span class="preprocessor"># ifndef WORKAROUND_MS_BUG_Q258000</span><a name="l00055"></a>00055 <span class="preprocessor"></span> <a class="code" href="class_microsoft_crypto_provider.html">MicrosoftCryptoProvider</a> m_Provider;<a name="l00056"></a>00056 <span class="preprocessor"># endif</span><a name="l00057"></a>00057 <span class="preprocessor"></span><span class="preprocessor">#else</span><a name="l00058"></a>00058 <span class="preprocessor"></span> <span class="keywordtype">int</span> m_fd;<a name="l00059"></a>00059 <span class="preprocessor">#endif</span><a name="l00060"></a>00060 <span class="preprocessor"></span>};<a name="l00061"></a>00061 <a name="l00062"></a>00062 <span class="preprocessor">#endif</span><a name="l00063"></a>00063 <span class="preprocessor"></span><a name="l00064"></a>00064 <span class="preprocessor">#ifdef BLOCKING_RNG_AVAILABLE</span><a name="l00065"></a>00065 <span class="preprocessor"></span><span class="comment"></span><a name="l00066"></a>00066 <span class="comment">//! encapsulate /dev/random, or /dev/srandom on OpenBSD</span><a name="l00067"></a><a class="code" href="class_blocking_rng.html">00067</a> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL BlockingRng : <span class="keyword">public</span> <a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a><a name="l00068"></a>00068 {<a name="l00069"></a>00069 <span class="keyword">public</span>:⌨️ 快捷键说明
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