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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++: dh.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>dh.h</h1><a href="dh_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_DH_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_DH_H</span><a name="l00003"></a>00003 <span class="preprocessor"></span><span class="comment"></span><a name="l00004"></a>00004 <span class="comment">/** \file</span><a name="l00005"></a>00005 <span class="comment">*/</span><a name="l00006"></a>00006 <a name="l00007"></a>00007 <span class="preprocessor">#include "<a class="code" href="gfpcrypt_8h.html" title="Implementation of schemes based on DL over GF(p).">gfpcrypt.h</a>"</span><a name="l00008"></a>00008 <a name="l00009"></a>00009 NAMESPACE_BEGIN(CryptoPP)<a name="l00010"></a>00010 <a name="l00011"></a>00011 <span class="comment">//! ,</span><a name="l00012"></a>00012 <span class="comment"></span>template <class GROUP_PARAMETERS, class COFACTOR_OPTION = CPP_TYPENAME GROUP_PARAMETERS::DefaultCofactorOption><a name="l00013"></a><a class="code" href="class_d_h___domain.html">00013</a> class <a class="code" href="class_d_h___domain.html" title=",">DH_Domain</a> : public <a class="code" href="class_d_l___simple_key_agreement_domain_base.html" title="_">DL_SimpleKeyAgreementDomainBase</a><typename GROUP_PARAMETERS::Element><a name="l00014"></a>00014 {<a name="l00015"></a>00015 <span class="keyword">typedef</span> <a class="code" href="class_d_l___simple_key_agreement_domain_base.html" title="_">DL_SimpleKeyAgreementDomainBase<typename GROUP_PARAMETERS::Element></a> <a class="code" href="class_d_l___simple_key_agreement_domain_base.html" title="_">Base</a>;<a name="l00016"></a>00016 <a name="l00017"></a>00017 <span class="keyword">public</span>:<a name="l00018"></a><a class="code" href="class_d_h___domain.html#15cd83ae62762d11f620209b32683395">00018</a> <span class="keyword">typedef</span> GROUP_PARAMETERS GroupParameters;<a name="l00019"></a><a class="code" href="class_d_h___domain.html#424ed0bb37abd6847628f858ab7c648b">00019</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> GroupParameters::Element Element;<a name="l00020"></a><a class="code" href="class_d_h___domain.html#5dfeb223a9e24bedab3b7910a5f58ed1">00020</a> <span class="keyword">typedef</span> <a class="code" href="class_d_l___key_agreement_algorithm___d_h.html" title="DH key agreement algorithm.">DL_KeyAgreementAlgorithm_DH<Element, COFACTOR_OPTION></a> <a class="code" href="class_d_l___key_agreement_algorithm___d_h.html" title="DH key agreement algorithm.">DH_Algorithm</a>;<a name="l00021"></a><a class="code" href="class_d_h___domain.html#ac36da3372e9e261b1bf4829d0f0e797">00021</a> <span class="keyword">typedef</span> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain<GROUP_PARAMETERS, COFACTOR_OPTION></a> <a class="code" href="class_d_h___domain.html" title=",">Domain</a>;<a name="l00022"></a>00022 <a name="l00023"></a><a class="code" href="class_d_h___domain.html#80a288ed3b3a888f21765d840ffc4802">00023</a> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain</a>() {}<a name="l00024"></a>00024 <a name="l00025"></a><a class="code" href="class_d_h___domain.html#4bf1d2c72fc8aa1622604f30b9326781">00025</a> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain</a>(<span class="keyword">const</span> GroupParameters &params)<a name="l00026"></a>00026 : m_groupParameters(params) {}<a name="l00027"></a>00027 <a name="l00028"></a><a class="code" href="class_d_h___domain.html#22d4fd5eb712c853ebfdf976860e33c2">00028</a> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)<a name="l00029"></a>00029 {m_groupParameters.BERDecode(bt);}<a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="keyword">template</span> <<span class="keyword">class</span> T2><a name="l00032"></a><a class="code" href="class_d_h___domain.html#0feb57c8aecf2942458d9d54c266047e">00032</a> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain</a>(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &v1, <span class="keyword">const</span> T2 &v2)<a name="l00033"></a>00033 {m_groupParameters.Initialize(v1, v2);}<a name="l00034"></a>00034 <a name="l00035"></a>00035 <span class="keyword">template</span> <<span class="keyword">class</span> T2, <span class="keyword">class</span> T3><a name="l00036"></a><a class="code" href="class_d_h___domain.html#0f6a43cbd906b4c2cb3a8d426b88148a">00036</a> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain</a>(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &v1, <span class="keyword">const</span> T2 &v2, <span class="keyword">const</span> T3 &v3)<a name="l00037"></a>00037 {m_groupParameters.Initialize(v1, v2, v3);}<a name="l00038"></a>00038 <a name="l00039"></a>00039 <span class="keyword">template</span> <<span class="keyword">class</span> T2, <span class="keyword">class</span> T3, <span class="keyword">class</span> T4><a name="l00040"></a><a class="code" href="class_d_h___domain.html#a67c56ec1bbb356488d3b6e9d9f02e85">00040</a> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain</a>(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &v1, <span class="keyword">const</span> T2 &v2, <span class="keyword">const</span> T3 &v3, <span class="keyword">const</span> T4 &v4)<a name="l00041"></a>00041 {m_groupParameters.Initialize(v1, v2, v3, v4);}<a name="l00042"></a>00042 <a name="l00043"></a>00043 <span class="keyword">template</span> <<span class="keyword">class</span> T1, <span class="keyword">class</span> T2><a name="l00044"></a><a class="code" href="class_d_h___domain.html#636ba7b8547548621dc4f8c19a7216cb">00044</a> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain</a>(<span class="keyword">const</span> T1 &v1, <span class="keyword">const</span> T2 &v2)<a name="l00045"></a>00045 {m_groupParameters.Initialize(v1, v2);}<a name="l00046"></a>00046 <a name="l00047"></a>00047 <span class="keyword">template</span> <<span class="keyword">class</span> T1, <span class="keyword">class</span> T2, <span class="keyword">class</span> T3><a name="l00048"></a><a class="code" href="class_d_h___domain.html#2442ccc8122411946adacd41f12fe838">00048</a> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain</a>(<span class="keyword">const</span> T1 &v1, <span class="keyword">const</span> T2 &v2, <span class="keyword">const</span> T3 &v3)<a name="l00049"></a>00049 {m_groupParameters.Initialize(v1, v2, v3);}<a name="l00050"></a>00050 <a name="l00051"></a>00051 <span class="keyword">template</span> <<span class="keyword">class</span> T1, <span class="keyword">class</span> T2, <span class="keyword">class</span> T3, <span class="keyword">class</span> T4><a name="l00052"></a><a class="code" href="class_d_h___domain.html#bf7459a664fb0e76a1660ef13766b556">00052</a> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain</a>(<span class="keyword">const</span> T1 &v1, <span class="keyword">const</span> T2 &v2, <span class="keyword">const</span> T3 &v3, <span class="keyword">const</span> T4 &v4)<a name="l00053"></a>00053 {m_groupParameters.Initialize(v1, v2, v3, v4);}<a name="l00054"></a>00054 <a name="l00055"></a><a class="code" href="class_d_h___domain.html#830f876144b120a22f59d74d2fb38477">00055</a> <span class="keyword">const</span> GroupParameters & GetGroupParameters()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_groupParameters;}<a name="l00056"></a><a class="code" href="class_d_h___domain.html#abb5b554448e060efb45b342205179e7">00056</a> GroupParameters & AccessGroupParameters() {<span class="keywordflow">return</span> m_groupParameters;}<a name="l00057"></a>00057 <a name="l00058"></a><a class="code" href="class_d_h___domain.html#b1fd61cdab38427665d83a4c37e66083">00058</a> <span class="keywordtype">void</span> GeneratePublicKey(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &rng, <span class="keyword">const</span> byte *privateKey, byte *publicKey)<span class="keyword"> const</span><a name="l00059"></a>00059 <span class="keyword"> </span>{<a name="l00060"></a>00060 Base::GeneratePublicKey(rng, privateKey, publicKey);<a name="l00061"></a>00061 <a name="l00062"></a>00062 <span class="keywordflow">if</span> (FIPS_140_2_ComplianceEnabled())<a name="l00063"></a>00063 {<a name="l00064"></a>00064 <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecByteBlock</a> privateKey2(this->PrivateKeyLength());<a name="l00065"></a>00065 this->GeneratePrivateKey(rng, privateKey2);<a name="l00066"></a>00066 <a name="l00067"></a>00067 <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecByteBlock</a> publicKey2(this->PublicKeyLength());<a name="l00068"></a>00068 Base::GeneratePublicKey(rng, privateKey2, publicKey2);<a name="l00069"></a>00069 <a name="l00070"></a>00070 <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecByteBlock</a> agreedValue(this->AgreedValueLength()), agreedValue2(this->AgreedValueLength());<a name="l00071"></a>00071 this->Agree(agreedValue, privateKey, publicKey2);<a name="l00072"></a>00072 this->Agree(agreedValue2, privateKey2, publicKey);<a name="l00073"></a>00073 <a name="l00074"></a>00074 <span class="keywordflow">if</span> (agreedValue != agreedValue2)<a name="l00075"></a>00075 <span class="keywordflow">throw</span> <a class="code" href="class_self_test_failure.html" title="exception thrown when a crypto algorithm is used after a self test fails">SelfTestFailure</a>(this->AlgorithmName() + <span class="stringliteral">": pairwise consistency test failed"</span>);<a name="l00076"></a>00076 }<a name="l00077"></a>00077 }<a name="l00078"></a>00078 <a name="l00079"></a><a class="code" href="class_d_h___domain.html#4e1edb78509954f4e50affadabb8ac0a">00079</a> <span class="keyword">static</span> std::string CRYPTOPP_API StaticAlgorithmName()<a name="l00080"></a>00080 {<span class="keywordflow">return</span> GroupParameters::StaticAlgorithmNamePrefix() + DH_Algorithm::StaticAlgorithmName();}<a name="l00081"></a><a class="code" href="class_d_h___domain.html#31e7356dcfa80e500fd24014f65012e7">00081</a> std::string AlgorithmName()<span class="keyword"> const </span>{<span class="keywordflow">return</span> StaticAlgorithmName();}<a name="l00082"></a>00082 <a name="l00083"></a>00083 <span class="keyword">private</span>:<a name="l00084"></a>00084 <span class="keyword">const</span> <a class="code" href="class_d_l___key_agreement_algorithm.html" title="interface for DL key agreement algorithms">DL_KeyAgreementAlgorithm<Element></a> & GetKeyAgreementAlgorithm()<span class="keyword"> const</span><a name="l00085"></a>00085 <span class="keyword"> </span>{<span class="keywordflow">return</span> <a class="code" href="class_singleton.html">Singleton<DH_Algorithm></a>().Ref();}<a name="l00086"></a>00086 <a class="code" href="class_d_l___group_parameters.html" title="interface for DL group parameters">DL_GroupParameters<Element></a> & AccessAbstractGroupParameters()<a name="l00087"></a>00087 {<span class="keywordflow">return</span> m_groupParameters;}<a name="l00088"></a>00088 <a name="l00089"></a>00089 GroupParameters m_groupParameters;<a name="l00090"></a>00090 };<a name="l00091"></a>00091 <a name="l00092"></a>00092 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_h___domain.html" title=",">DH_Domain<DL_GroupParameters_GFP_DefaultSafePrime></a>;<a name="l00093"></a>00093 <span class="comment"></span><a name="l00094"></a>00094 <span class="comment">//! <a href="http://www.weidai.com/scan-mirror/ka.html#DH">Diffie-Hellman</a> in GF(p) with key validation</span><a name="l00095"></a><a class="code" href="dh_8h.html#d6400f70a2f740693b62d66d59171a32">00095</a> <span class="comment"></span><span class="keyword">typedef</span> <a class="code" href="class_d_h___domain.html" title=",">DH_Domain<DL_GroupParameters_GFP_DefaultSafePrime></a> <a class="code" href="class_d_h___domain.html" title=",">DH</a>;<a name="l00096"></a>00096 <a name="l00097"></a>00097 NAMESPACE_END<a name="l00098"></a>00098 <a name="l00099"></a>00099 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Fri Jun 1 11:11:20 2007 for Crypto++ by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.2 </small></address></body></html>⌨️ 快捷键说明
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