eccrypto_8h-source.html

Crypto++是一个非常强大的密码学库,主要是功能全

00091         }
00092         <a class="code" href="class_integer.html">Integer</a> ConvertElementToInteger(<span class="keyword">const</span> Element &amp;element) <span class="keyword">const</span>;
00093         <a class="code" href="class_integer.html">Integer</a> GetMaxExponent()<span class="keyword"> const </span>{<span class="keywordflow">return</span> GetSubgroupOrder()-1;}
00094         <span class="keywordtype">bool</span> IsIdentity(<span class="keyword">const</span> Element &amp;element)<span class="keyword"> const </span>{<span class="keywordflow">return</span> element.identity;}
00095         <span class="keywordtype">void</span> SimultaneousExponentiate(Element *results, <span class="keyword">const</span> Element &amp;base, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> *exponents, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> exponentsCount) <span class="keyword">const</span>;
00096 
00097         <span class="comment">// ASN1Key</span>
00098         <a class="code" href="class_o_i_d.html">OID</a> GetAlgorithmID() <span class="keyword">const</span>;
00099 
00100         <span class="comment">// used by MQV</span>
00101         Element MultiplyElements(<span class="keyword">const</span> Element &amp;a, <span class="keyword">const</span> Element &amp;b) <span class="keyword">const</span>;
00102         Element CascadeExponentiate(<span class="keyword">const</span> Element &amp;element1, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;exponent1, <span class="keyword">const</span> Element &amp;element2, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;exponent2) <span class="keyword">const</span>;
00103 
00104         <span class="comment">// non-inherited</span>
00105 
00106         <span class="comment">// enumerate OIDs for recommended parameters, use OID() to get first one</span>
00107         <span class="keyword">static</span> <a class="code" href="class_o_i_d.html">OID</a> GetNextRecommendedParametersOID(<span class="keyword">const</span> <a class="code" href="class_o_i_d.html">OID</a> &amp;oid);
00108 
00109         <span class="keywordtype">void</span> BERDecode(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &amp;bt);
00110         <span class="keywordtype">void</span> DEREncode(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &amp;bt) <span class="keyword">const</span>;
00111 
00112         <span class="keywordtype">void</span> SetPointCompression(<span class="keywordtype">bool</span> compress) {m_compress = compress;}
00113         <span class="keywordtype">bool</span> GetPointCompression()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_compress;}
00114 
00115         <span class="keywordtype">void</span> SetEncodeAsOID(<span class="keywordtype">bool</span> encodeAsOID) {m_encodeAsOID = encodeAsOID;}
00116         <span class="keywordtype">bool</span> GetEncodeAsOID()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_encodeAsOID;}
00117 
00118         <span class="keyword">const</span> EllipticCurve&amp; GetCurve()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_groupPrecomputation.GetCurve();}
00119 
00120         <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters___e_c.html">ThisClass</a> &amp;rhs)<span class="keyword"> const</span>
00121 <span class="keyword">                </span>{<span class="keywordflow">return</span> <a class="code" href="class_d_l___group_parameters_impl.html">DL_GroupParametersImpl&lt;EcPrecomputation&lt;EC&gt;</a> &gt;::operator==(rhs);}
00122 
00123 <span class="preprocessor">#ifdef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY</span>
00124 <span class="preprocessor"></span>        <span class="keyword">const</span> Point&amp; GetBasePoint()<span class="keyword"> const </span>{<span class="keywordflow">return</span> GetSubgroupGenerator();}
00125         <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a>&amp; GetBasePointOrder()<span class="keyword"> const </span>{<span class="keywordflow">return</span> GetSubgroupOrder();}
00126         <span class="keywordtype">void</span> LoadRecommendedParameters(<span class="keyword">const</span> <a class="code" href="class_o_i_d.html">OID</a> &amp;oid) {Initialize(oid);}
00127 <span class="preprocessor">#endif</span>
00128 <span class="preprocessor"></span>
00129 <span class="keyword">protected</span>:
00130         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> FieldElementLength()<span class="keyword"> const </span>{<span class="keywordflow">return</span> GetCurve().GetField().MaxElementByteLength();}
00131         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ExponentLength()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_n.<a class="code" href="class_integer.html#_integerz41_3">ByteCount</a>();}
00132 
00133         <a class="code" href="class_o_i_d.html">OID</a> m_oid;                      <span class="comment">// set if parameters loaded from a recommended curve</span>
00134         <a class="code" href="class_integer.html">Integer</a> m_n;            <span class="comment">// order of base point</span>
00135         <span class="keywordtype">bool</span> m_compress, m_encodeAsOID;
00136         <span class="keyword">mutable</span> <a class="code" href="class_integer.html">Integer</a> m_k;            <span class="comment">// cofactor</span>
00137 };
00138 
00139 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___group_parameters___e_c.html">DL_GroupParameters_EC&lt;ECP&gt;</a>;
00140 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___group_parameters___e_c.html">DL_GroupParameters_EC&lt;EC2N&gt;</a>;
00141 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___public_key_impl.html">DL_PublicKeyImpl&lt;DL_GroupParameters_EC&lt;ECP&gt;</a> &gt;;
00142 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___public_key_impl.html">DL_PublicKeyImpl&lt;DL_GroupParameters_EC&lt;EC2N&gt;</a> &gt;;
00143 <span class="comment"></span>
00144 <span class="comment">//! .</span>
00145 <span class="comment"></span><span class="keyword">template</span> &lt;<span class="keyword">class</span> EC&gt;
<a name="l00146"></a><a class="code" href="class_d_l___public_key___e_c.html">00146</a> <span class="keyword">class </span><a class="code" href="class_d_l___public_key___e_c.html">DL_PublicKey_EC</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___public_key_impl.html">DL_PublicKeyImpl</a>&lt;DL_GroupParameters_EC&lt;EC&gt; &gt;
00147 {
00148 <span class="keyword">public</span>:
00149         <span class="keyword">typedef</span> <span class="keyword">typename</span> EC::Point Element;
00150 
00151         <span class="keywordtype">void</span> Initialize(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters___e_c.html">DL_GroupParameters_EC&lt;EC&gt;</a> &amp;params, <span class="keyword">const</span> Element &amp;Q)
00152                 {AccessGroupParameters() = params; SetPublicElement(Q);}
00153         <span class="keywordtype">void</span> Initialize(<span class="keyword">const</span> EC &amp;ec, <span class="keyword">const</span> Element &amp;G, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;n, <span class="keyword">const</span> Element &amp;Q)
00154                 {AccessGroupParameters().Initialize(ec, G, n); SetPublicElement(Q);}
00155 
00156         <span class="comment">// X509PublicKey</span>
00157         <span class="keywordtype">void</span> BERDecodeKey2(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &amp;bt, <span class="keywordtype">bool</span> parametersPresent, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size);
00158         <span class="keywordtype">void</span> DEREncodeKey(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &amp;bt) <span class="keyword">const</span>;
00159 };
00160 
00161 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___public_key___e_c.html">DL_PublicKey_EC&lt;ECP&gt;</a>;
00162 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___public_key___e_c.html">DL_PublicKey_EC&lt;EC2N&gt;</a>;
00163 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___private_key_impl.html">DL_PrivateKeyImpl&lt;DL_GroupParameters_EC&lt;ECP&gt;</a> &gt;;
00164 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___private_key_impl.html">DL_PrivateKeyImpl&lt;DL_GroupParameters_EC&lt;EC2N&gt;</a> &gt;;
00165 <span class="comment"></span>
00166 <span class="comment">//! .</span>
00167 <span class="comment"></span><span class="keyword">template</span> &lt;<span class="keyword">class</span> EC&gt;
<a name="l00168"></a><a class="code" href="class_d_l___private_key___e_c.html">00168</a> <span class="keyword">class </span><a class="code" href="class_d_l___private_key___e_c.html">DL_PrivateKey_EC</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___private_key_impl.html">DL_PrivateKeyImpl</a>&lt;DL_GroupParameters_EC&lt;EC&gt; &gt;
00169 {
00170 <span class="keyword">public</span>:
00171         <span class="keyword">typedef</span> <span class="keyword">typename</span> EC::Point Element;
00172 
00173         <span class="keywordtype">void</span> Initialize(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters___e_c.html">DL_GroupParameters_EC&lt;EC&gt;</a> &amp;params, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;x)
00174                 {AccessGroupParameters() = params; SetPrivateExponent(x);}
00175         <span class="keywordtype">void</span> Initialize(<span class="keyword">const</span> EC &amp;ec, <span class="keyword">const</span> Element &amp;G, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;n, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;x)
00176                 {AccessGroupParameters().Initialize(ec, G, n); SetPrivateExponent(x);}
00177         <span class="keywordtype">void</span> Initialize(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &amp;rng, <span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters___e_c.html">DL_GroupParameters_EC&lt;EC&gt;</a> &amp;params)
00178                 {<a class="code" href="class_d_l___private_key_impl.html#_d_l___private_key_impla3">GenerateRandom</a>(rng, params);}
00179         <span class="keywordtype">void</span> Initialize(<a class="code" href="class_random_number_generator.html">RandomNumberGenerator</a> &amp;rng, <span class="keyword">const</span> EC &amp;ec, <span class="keyword">const</span> Element &amp;G, <span class="keyword">const</span> <a class="code" href="class_integer.html">Integer</a> &amp;n)
00180                 {<a class="code" href="class_d_l___private_key_impl.html#_d_l___private_key_impla3">GenerateRandom</a>(rng, <a class="code" href="class_d_l___group_parameters___e_c.html">DL_GroupParameters_EC&lt;EC&gt;</a>(ec, G, n));}
00181 
00182         <span class="comment">// PKCS8PrivateKey</span>
00183         <span class="keywordtype">void</span> BERDecodeKey2(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &amp;bt,  <span class="keywordtype">bool</span> parametersPresent, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size);
00184         <span class="keywordtype">void</span> DEREncodeKey(<a class="code" href="class_buffered_transformation.html">BufferedTransformation</a> &amp;bt) <span class="keyword">const</span>;
00185 };
00186 
00187 CRYPTOPP_DLL_TEMPLATE_CLASS <a class="code" href="class_d_l___private_key___e_c.html">DL_PrivateKey_EC&lt;ECP&gt;</a>;