gfpcrypt_8h-source.html
来自「Crypto++是一个非常强大的密码学库,主要是功能全」· HTML 代码 · 共 516 行 · 第 1/5 页
HTML
516 行
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Crypto++: gfpcrypt.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.3.2 --><div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Compound List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="namespacemembers.html">Namespace Members</a> | <a class="qindex" href="functions.html">Compound Members</a> | <a class="qindex" href="globals.html">File Members</a></div><h1>gfpcrypt.h</h1><a href="gfpcrypt_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="preprocessor">#ifndef CRYPTOPP_GFPCRYPT_H</span>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_GFPCRYPT_H</span>00003 <span class="preprocessor"></span><span class="comment"></span>00004 <span class="comment">/** \file</span>00005 <span class="comment"> Implementation of schemes based on DL over GF(p)</span>00006 <span class="comment">*/</span>00007 00008 <span class="preprocessor">#include "<a class="code" href="pubkey_8h.html">pubkey.h</a>"</span>00009 <span class="preprocessor">#include "modexppc.h"</span>00010 <span class="preprocessor">#include "sha.h"</span>00011 <span class="preprocessor">#include "algparam.h"</span>00012 <span class="preprocessor">#include "asn.h"</span>00013 <span class="preprocessor">#include "smartptr.h"</span>00014 <span class="preprocessor">#include "hmac.h"</span>00015 00016 <span class="preprocessor">#include <limits.h></span>00017 00018 NAMESPACE_BEGIN(CryptoPP)00019 00020 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters<Integer></a>;00021 <span class="comment"></span>00022 <span class="comment">//! .</span><a name="l00023"></a><a class="code" href="class_d_l___group_parameters___integer_based.html">00023</a> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL DL_GroupParameters_IntegerBased : <span class="keyword">public</span> <a class="code" href="class_d_l___group_parameters.html">DL_GroupParameters</a><Integer>, <span class="keyword">public</span> <a class="code" href="class_a_s_n1_crypto_material.html">ASN1CryptoMaterial</a>00024 {00025 <span class="keyword">typedef</span> DL_GroupParameters_IntegerBased <a class="code" href="class_d_l___group_parameters___integer_based.html">ThisClass</a>;00026 00027 <span class="keyword">public</span>:00028 <span class="keywordtype">void</span> Initialize(<span class="keyword">const</span> DL_GroupParameters_IntegerBased &params)00029 {Initialize(params.<a class="code" href="class_d_l___group_parameters___integer_based.html#_d_l___group_parameters_impl_3_01_mod_exp_precomputation_00_01_d_l___fixed_base_precomputation_impl_3_01typename_mod_exp_precomputation_1_1_element_01_4_00_01_d_l___group_parameters___integer_based_01_4a25">GetModulus</a>(), params.<a class="code" href="class_d_l___group_parameters___integer_based.html#_d_l___group_parameters_impl_3_01_mod_exp_precomputation_00_01_d_l___fixed_base_precomputation_impl_3_01typename_mod_exp_precomputation_1_1_element_01_4_00_01_d_l___group_parameters___integer_based_01_4a13">GetSubgroupOrder</a>(), params.<a class="code" href="class_d_l___group_parameters.html#_d_l___group_parametersa7">GetSubgroupGenerator</a>());}00030 <span class="keywordtype">void</span> Initialize(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pbits)00031 {<a class="code" href="class_generatable_crypto_material.html#_x_t_r___d_ha27">GenerateRandom</a>(rng, MakeParameters(<span class="stringliteral">"ModulusSize"</span>, (<span class="keywordtype">int</span>)pbits));}00032 <span class="keywordtype">void</span> Initialize(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g)00033 {SetModulusAndSubgroupGenerator(p, g); SetSubgroupOrder(ComputeGroupOrder(p)/2);}00034 <span class="keywordtype">void</span> Initialize(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g)00035 {SetModulusAndSubgroupGenerator(p, g); SetSubgroupOrder(q);}00036 00037 <span class="comment">// ASN1Object interface</span>00038 <span class="keywordtype">void</span> <a class="code" href="class_a_s_n1_object.html#_a_s_n1_objecta1">BERDecode</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &bt);00039 <span class="keywordtype">void</span> <a class="code" href="class_a_s_n1_object.html#_a_s_n1_objecta2">DEREncode</a>(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &bt) <span class="keyword">const</span>;00040 00041 <span class="comment">// GeneratibleCryptoMaterial interface</span><span class="comment"></span>00042 <span class="comment"> /*! parameters: (ModulusSize, SubgroupOrderSize (optional)) */</span>00043 <span class="keywordtype">void</span> <a class="code" href="class_generatable_crypto_material.html#_x_t_r___d_ha27">GenerateRandom</a>(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &alg);00044 <span class="keywordtype">bool</span> <a class="code" href="class_name_value_pairs.html#_x509_public_keya28">GetVoidValue</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> std::type_info &valueType, <span class="keywordtype">void</span> *pValue) <span class="keyword">const</span>;00045 <span class="keywordtype">void</span> <a class="code" href="class_crypto_material.html#_x509_public_keya11">AssignFrom</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &source);00046 00047 <span class="comment">// DL_GroupParameters</span>00048 <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> & GetSubgroupOrder()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_q;}00049 <a class="code" href="class_integer.html">Integer</a> GetGroupOrder()<span class="keyword"> const </span>{<span class="keywordflow">return</span> GetFieldType() == 1 ? GetModulus()-<a class="code" href="class_integer.html#_integerz37_11">Integer::One</a>() : GetModulus()+<a class="code" href="class_integer.html#_integerz37_11">Integer::One</a>();}00050 <span class="keywordtype">bool</span> ValidateGroup(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> level) <span class="keyword">const</span>;00051 <span class="keywordtype">bool</span> ValidateElement(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> level, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &element, <span class="keyword">const</span> DL_FixedBasePrecomputation<Integer> *precomp) <span class="keyword">const</span>;00052 <span class="keywordtype">bool</span> FastSubgroupCheckAvailable()<span class="keyword"> const </span>{<span class="keywordflow">return</span> GetCofactor() == 2;}00053 <span class="keywordtype">void</span> EncodeElement(<span class="keywordtype">bool</span> reversible, <span class="keyword">const</span> Element &element, byte *encoded)<span class="keyword"> const</span>00054 <span class="keyword"> </span>{element.Encode(encoded, GetModulus().ByteCount());}00055 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetEncodedElementSize(<span class="keywordtype">bool</span> reversible)<span class="keyword"> const </span>{<span class="keywordflow">return</span> GetModulus().ByteCount();}00056 <a class="code" href="class_integer.html">Integer</a> DecodeElement(<span class="keyword">const</span> byte *encoded, <span class="keywordtype">bool</span> checkForGroupMembership) <span class="keyword">const</span>;00057 <a class="code" href="class_integer.html">Integer</a> ConvertElementToInteger(<span class="keyword">const</span> Element &element)<span class="keyword"> const</span>00058 <span class="keyword"> </span>{<span class="keywordflow">return</span> element;}00059 <a class="code" href="class_integer.html">Integer</a> GetMaxExponent() <span class="keyword">const</span>;00060 00061 <a class="code" href="class_o_i_d.html">OID</a> GetAlgorithmID() <span class="keyword">const</span>;00062 00063 <span class="keyword">virtual</span> <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> & GetModulus() <span class="keyword">const</span> =0;00064 <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetModulusAndSubgroupGenerator(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &p, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &g) =0;00065 00066 <span class="keywordtype">void</span> SetSubgroupOrder(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &q)00067 {m_q = q; ParametersChanged();}00068 00069 <span class="keyword">protected</span>:00070 <a class="code" href="class_integer.html">Integer</a> ComputeGroupOrder(<span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &modulus)<span class="keyword"> const</span>00071 <span class="keyword"> </span>{<span class="keywordflow">return</span> modulus-(GetFieldType() == 1 ? 1 : -1);}00072 00073 <span class="comment">// GF(p) = 1, GF(p^2) = 2</span>00074 <span class="keyword">virtual</span> <span class="keywordtype">int</span> GetFieldType() <span class="keyword">const</span> =0;00075 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetDefaultSubgroupOrderSize(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> modulusSize) <span class="keyword">const</span>;00076 00077 <span class="keyword">private</span>:00078 <a class="code" href="class_integer.html">Integer</a> m_q;00079 };00080 <span class="comment"></span>00081 <span class="comment">//! .</span>00082 <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> GROUP_PRECOMP, <span class="keyword">class</span> BASE_PRECOMP = DL_FixedBasePrecomputationImpl<CPP_TYPENAME GROUP_PRECOMP::Element> ><a name="l00083"></a><a class="code" href="class_d_l___group_parameters___integer_based_impl.html">00083</a> <span class="keyword">class </span><a class="code" href="class_d_l___group_parameters___integer_based_impl.html">DL_GroupParameters_IntegerBasedImpl</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___group_parameters_impl.html">DL_GroupParametersImpl</a><GROUP_PRECOMP, BASE_PRECOMP, DL_GroupParameters_IntegerBased>00084 {00085 <span class="keyword">typedef</span> <a class="code" href="class_d_l___group_parameters___integer_based_impl.html">DL_GroupParameters_IntegerBasedImpl<GROUP_PRECOMP, BASE_PRECOMP></a> <a class="code" href="class_d_l___group_parameters___integer_based_impl.html">ThisClass</a>;00086 00087 <span class="keyword">public</span>:00088 <span class="keyword">typedef</span> <span class="keyword">typename</span> GROUP_PRECOMP::Element Element;00089 00090 <span class="comment">// GeneratibleCryptoMaterial interface</span><a name="l00091"></a><a class="code" href="class_d_l___group_parameters___integer_based_impl.html#_d_l___group_parameters___integer_based_impla0">00091</a> <span class="keywordtype">bool</span> <a class="code" href="class_d_l___group_parameters___integer_based_impl.html#_d_l___group_parameters___integer_based_impla0">GetVoidValue</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> std::type_info &valueType, <span class="keywordtype">void</span> *pValue)<span class="keyword"> const</span>00092 <span class="keyword"> </span>{<span class="keywordflow">return</span> GetValueHelper<DL_GroupParameters_IntegerBased>(<span class="keyword">this</span>, name, valueType, pValue).Assignable();}00093 <a name="l00094"></a><a class="code" href="class_d_l___group_parameters___integer_based_impl.html#_d_l___group_parameters___integer_based_impla1">00094</a> <span class="keywordtype">void</span> <a class="code" href="class_d_l___group_parameters___integer_based_impl.html#_d_l___group_parameters___integer_based_impla1">AssignFrom</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &source)00095 {AssignFromHelper<DL_GroupParameters_IntegerBased>(<span class="keyword">this</span>, source);}00096 00097 <span class="comment">// DL_GroupParameters</span>⌨️ 快捷键说明
复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?