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著名的密码库Crypto++的文档 C++语言的杰作。程序员必备。

<a name="l00193"></a>00193                 s = (k - x*r) % q;
<a name="l00194"></a>00194                 assert(!!r);
<a name="l00195"></a>00195         }
<a name="l00196"></a>00196 
<a name="l00197"></a><a class="code" href="class_d_l___algorithm___n_r.html#1751a1111a3dc80e289eb522fc752747">00197</a>         <span class="keywordtype">bool</span> <a class="code" href="class_d_l___algorithm___n_r.html#1751a1111a3dc80e289eb522fc752747">Verify</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters.html" title="interface for DL group parameters">DL_GroupParameters&lt;T&gt;</a> &amp;params, <span class="keyword">const</span> <a class="code" href="class_d_l___public_key.html" title="interface for DL public keys">DL_PublicKey&lt;T&gt;</a> &amp;publicKey, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;e, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;r, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;s)<span class="keyword"> const</span>
<a name="l00198"></a>00198 <span class="keyword">        </span>{
<a name="l00199"></a>00199                 <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;q = params.<a class="code" href="class_d_l___group_parameters.html#3555cec872358c0f314a375f56119c99">GetSubgroupOrder</a>();
<a name="l00200"></a>00200                 <span class="keywordflow">if</span> (r&gt;=q || r&lt;1 || s&gt;=q)
<a name="l00201"></a>00201                         <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00202"></a>00202 
<a name="l00203"></a>00203                 <span class="comment">// check r == (m_g^s * m_y^r + m) mod m_q</span>
<a name="l00204"></a>00204                 <span class="keywordflow">return</span> r == (params.<a class="code" href="class_d_l___group_parameters.html#fb36d983bb45fe3b8acb1767c0060700">ConvertElementToInteger</a>(publicKey.<a class="code" href="class_d_l___public_key.html#63d54207437aeb69fcccdd1fbbde12e8">CascadeExponentiateBaseAndPublicElement</a>(s, r)) + e) % q;
<a name="l00205"></a>00205         }
<a name="l00206"></a>00206 };
<a name="l00207"></a>00207 <span class="comment"></span>
<a name="l00208"></a>00208 <span class="comment">/*! DSA public key format is defined in 7.3.3 of RFC 2459. The</span>
<a name="l00209"></a>00209 <span class="comment">        private key format is defined in 12.9 of PKCS #11 v2.10. */</span>
<a name="l00210"></a>00210 <span class="keyword">template</span> &lt;<span class="keyword">class</span> GP&gt;
<a name="l00211"></a><a class="code" href="class_d_l___public_key___g_f_p.html">00211</a> <span class="keyword">class </span><a class="code" href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___public_key_impl.html" title="_">DL_PublicKeyImpl</a>&lt;GP&gt;
<a name="l00212"></a>00212 {
<a name="l00213"></a>00213 <span class="keyword">public</span>:
<a name="l00214"></a><a class="code" href="class_d_l___public_key___g_f_p.html#06b9c78e45b40b6a5bdf3f3bb5a9b806">00214</a>         <span class="keywordtype">void</span> <a class="code" href="class_d_l___public_key___g_f_p.html#06b9c78e45b40b6a5bdf3f3bb5a9b806">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters___integer_based.html" title="_">DL_GroupParameters_IntegerBased</a> &amp;params, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;y)
<a name="l00215"></a>00215                 {this-&gt;<a class="code" href="class_d_l___key_impl.html#2ec144a5bedd2151b4bd0bb5118f1a8f">AccessGroupParameters</a>().Initialize(params); this-&gt;<a class="code" href="class_d_l___public_key.html#86cac45fc0ddaf07c057061b93cd8ce1">SetPublicElement</a>(y);}
<a name="l00216"></a><a class="code" href="class_d_l___public_key___g_f_p.html#3488c76b9b7aa9b78ef83bc30b546c6d">00216</a>         <span class="keywordtype">void</span> <a class="code" href="class_d_l___public_key___g_f_p.html#06b9c78e45b40b6a5bdf3f3bb5a9b806">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;p, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;g, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;y)
<a name="l00217"></a>00217                 {this-&gt;<a class="code" href="class_d_l___key_impl.html#2ec144a5bedd2151b4bd0bb5118f1a8f">AccessGroupParameters</a>().Initialize(p, g); this-&gt;<a class="code" href="class_d_l___public_key.html#86cac45fc0ddaf07c057061b93cd8ce1">SetPublicElement</a>(y);}
<a name="l00218"></a><a class="code" href="class_d_l___public_key___g_f_p.html#df536d6b1f23579db94bf563b8af45eb">00218</a>         <span class="keywordtype">void</span> <a class="code" href="class_d_l___public_key___g_f_p.html#06b9c78e45b40b6a5bdf3f3bb5a9b806">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;p, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;q, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;g, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;y)
<a name="l00219"></a>00219                 {this-&gt;<a class="code" href="class_d_l___key_impl.html#2ec144a5bedd2151b4bd0bb5118f1a8f">AccessGroupParameters</a>().Initialize(p, q, g); this-&gt;<a class="code" href="class_d_l___public_key.html#86cac45fc0ddaf07c057061b93cd8ce1">SetPublicElement</a>(y);}
<a name="l00220"></a>00220 
<a name="l00221"></a>00221         <span class="comment">// X509PublicKey</span>
<a name="l00222"></a><a class="code" href="class_d_l___public_key___g_f_p.html#9776ea4e0c4629e9e699145e0cf20d36">00222</a>         <span class="keywordtype">void</span> <a class="code" href="class_d_l___public_key___g_f_p.html#9776ea4e0c4629e9e699145e0cf20d36" title="decode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header...">BERDecodePublicKey</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;bt, <span class="keywordtype">bool</span>, <span class="keywordtype">size_t</span>)
<a name="l00223"></a>00223                 {this-&gt;<a class="code" href="class_d_l___public_key.html#86cac45fc0ddaf07c057061b93cd8ce1">SetPublicElement</a>(<a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a>(bt));}
<a name="l00224"></a><a class="code" href="class_d_l___public_key___g_f_p.html#132a1c79c696cb4589e08e5f448df6d0">00224</a>         <span class="keywordtype">void</span> <a class="code" href="class_d_l___public_key___g_f_p.html#132a1c79c696cb4589e08e5f448df6d0" title="encode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header...">DEREncodePublicKey</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &amp;bt)<span class="keyword"> const</span>
<a name="l00225"></a>00225 <span class="keyword">                </span>{this-&gt;<a class="code" href="class_d_l___public_key.html#b748086e14a92416ff49183f81f777c4">GetPublicElement</a>().DEREncode(bt);}
<a name="l00226"></a>00226 };
<a name="l00227"></a>00227 <span class="comment"></span>
<a name="l00228"></a>00228 <span class="comment">//! DL private key (in GF(p) groups)</span>
<a name="l00229"></a>00229 <span class="comment"></span><span class="keyword">template</span> &lt;<span class="keyword">class</span> GP&gt;
<a name="l00230"></a><a class="code" href="class_d_l___private_key___g_f_p.html">00230</a> <span class="keyword">class </span><a class="code" href="class_d_l___private_key___g_f_p.html" title="DL private key (in GF(p) groups).">DL_PrivateKey_GFP</a> : <span class="keyword">public</span> <a class="code" href="class_d_l___private_key_impl.html" title="_">DL_PrivateKeyImpl</a>&lt;GP&gt;
<a name="l00231"></a>00231 {
<a name="l00232"></a>00232 <span class="keyword">public</span>:
<a name="l00233"></a><a class="code" href="class_d_l___private_key___g_f_p.html#d069712f5fa3ce6761d3f24d9c55b97d">00233</a>         <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#d069712f5fa3ce6761d3f24d9c55b97d">Initialize</a>(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &amp;rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> modulusBits)
<a name="l00234"></a>00234                 {this-&gt;<a class="code" href="class_generatable_crypto_material.html#38d492343c32e530a5c2781b5797f755" title="calls the above function with a NameValuePairs object that just specifies "KeySize"...">GenerateRandomWithKeySize</a>(rng, modulusBits);}
<a name="l00235"></a><a class="code" href="class_d_l___private_key___g_f_p.html#a9a70c3bbfed80f78b2303f78c5cc65f">00235</a>         <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#d069712f5fa3ce6761d3f24d9c55b97d">Initialize</a>(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &amp;rng, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;p, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;g)
<a name="l00236"></a>00236                 {this-&gt;<a class="code" href="class_d_l___private_key_impl.html#b80a3771a5ef623677775f7c5dddb1e0" title="generate a random key or crypto parameters">GenerateRandom</a>(rng, MakeParameters(<span class="stringliteral">"Modulus"</span>, p)(<span class="stringliteral">"SubgroupGenerator"</span>, g));}
<a name="l00237"></a><a class="code" href="class_d_l___private_key___g_f_p.html#2783fbb6b0bf3d8984fa639260f9b1f2">00237</a>         <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#d069712f5fa3ce6761d3f24d9c55b97d">Initialize</a>(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &amp;rng, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;p, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;q, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;g)
<a name="l00238"></a>00238                 {this-&gt;<a class="code" href="class_d_l___private_key_impl.html#b80a3771a5ef623677775f7c5dddb1e0" title="generate a random key or crypto parameters">GenerateRandom</a>(rng, MakeParameters(<span class="stringliteral">"Modulus"</span>, p)(<span class="stringliteral">"SubgroupOrder"</span>, q)(<span class="stringliteral">"SubgroupGenerator"</span>, g));}
<a name="l00239"></a><a class="code" href="class_d_l___private_key___g_f_p.html#f4fe22ddafeaf3f9c1ca455fe865ea02">00239</a>         <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#d069712f5fa3ce6761d3f24d9c55b97d">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_d_l___group_parameters___integer_based.html" title="_">DL_GroupParameters_IntegerBased</a> &amp;params, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;x)
<a name="l00240"></a>00240                 {this-&gt;<a class="code" href="class_d_l___key_impl.html#2ec144a5bedd2151b4bd0bb5118f1a8f">AccessGroupParameters</a>().Initialize(params); this-&gt;<a class="code" href="class_d_l___private_key_impl.html#d2756b046f9ee7f3c254c9fc2bb8be5d">SetPrivateExponent</a>(x);}
<a name="l00241"></a><a class="code" href="class_d_l___private_key___g_f_p.html#e104770a2623183d9b7acd0147322532">00241</a>         <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#d069712f5fa3ce6761d3f24d9c55b97d">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;p, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;g, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;x)
<a name="l00242"></a>00242                 {this-&gt;<a class="code" href="class_d_l___key_impl.html#2ec144a5bedd2151b4bd0bb5118f1a8f">AccessGroupParameters</a>().Initialize(p, g); this-&gt;<a class="code" href="class_d_l___private_key_impl.html#d2756b046f9ee7f3c254c9fc2bb8be5d">SetPrivateExponent</a>(x);}
<a name="l00243"></a><a class="code" href="class_d_l___private_key___g_f_p.html#d81584c72391752ad51900e846bcca63">00243</a>         <span class="keywordtype">void</span> <a class="code" href="class_d_l___private_key___g_f_p.html#d069712f5fa3ce6761d3f24d9c55b97d">Initialize</a>(<span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;p, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;q, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;g, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &amp;x)
<a name="l00244"></a>00244                 {this-&gt;<a class="code" href="class_d_l___key_impl.html#2ec144a5bedd2151b4bd0bb5118f1a8f">AccessGroupParameters</a>().Initialize(p, q, g); this-&gt;<a class="code" href="class_d_l___private_key_impl.html#d2756b046f9ee7f3c254c9fc2bb8be5d">SetPrivateExponent</a>(x);}
<a name="l00245"></a>00245 };
<a name="l00246"></a>00246 <span class="comment"></span>
<a name="l00247"></a>00247 <span class="comment">//! DL signing/verification keys (in GF(p) groups)</span>
<a name="l00248"></a><a class="code" href="struct_d_l___signature_keys___g_f_p.html">00248</a> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_d_l___signature_keys___g_f_p.html" title="DL signing/verification keys (in GF(p) groups).">DL_SignatureKeys_GFP</a>
<a name="l00249"></a>00249 {
<a name="l00250"></a><a class="code" href="struct_d_l___signature_keys___g_f_p.html#8cfc9c16dc935bb5886db63120db4666">00250</a>         <span class="keyword">typedef</span> <a class="code" href="class_d_l___group_parameters___g_f_p.html" title="GF(p) group parameters.">DL_GroupParameters_GFP</a> <a class="code" href="class_d_l___group_parameters___g_f_p.html" title="GF(p) group parameters.">GroupParameters</a>;
<a name="l00251"></a><a class="code" href="struct_d_l___signature_keys___g_f_p.html#21c8ecad310fec227efb7495a2d826a5">00251</a>         <span class="keyword">typedef</span> <a class="code" href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP&lt;GroupParameters&gt;</a> <a class="code" href="class_d_l___public_key___g_f_p.html">PublicKey</a>;
<a name="l00252"></a><a class="code" href="struct_d_l___signature_keys___g_f_p.html#ffa2c06ef72c51a673ad91993dd772ab">00252</a>         <span class="keyword">typedef</span> <a class="code" href="class_d_l___private_key___g_f_p.html" title="DL private key (in GF(p) groups).">DL_PrivateKey_GFP&lt;GroupParameters&gt;</a> <a class="code" href="class_d_l___private_key___g_f_p.html" title="DL private key (in GF(p) groups).">PrivateKey</a>;
<a name="l00253"></a>00253 };
<a name="l00254"></a>00254 <span class="comment"></span>
<a name="l00255"></a>00255 <span class="comment">//! DL encryption/decryption keys (in GF(p) groups)</span>
<a name="l00256"></a><a class="code" href="struct_d_l___crypto_keys___g_f_p.html">00256</a> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_d_l___crypto_keys___g_f_p.html" title="DL encryption/decryption keys (in GF(p) groups).">DL_CryptoKeys_GFP</a>
<a name="l00257"></a>00257 {
<a name="l00258"></a><a class="code" href="struct_d_l___crypto_keys___g_f_p.html#e775386f9d0dfc252bdd1b58dbb5a529">00258</a>         <span class="keyword">typedef</span> DL_GroupParameters_GFP_DefaultSafePrime <a class="code" href="class_d_l___group_parameters___g_f_p___default_safe_prime.html" title="GF(p) group parameters that default to same primes.">GroupParameters</a>;
<a name="l00259"></a><a class="code" href="struct_d_l___crypto_keys___g_f_p.html#6675e22c646660d02ad3d01604031135">00259</a>         <span class="keyword">typedef</span> <a class="code" href="class_d_l___public_key___g_f_p.html">DL_PublicKey_GFP&lt;GroupParameters&gt;</a> <a class="code" href="class_d_l___public_key___g_f_p.html">PublicKey</a>;
<a name="l00260"></a><a class="code" href="struct_d_l___crypto_keys___g_f_p.html#b9e7e2d594a87bf4a1777f23c721c22e">00260</a>         <span class="keyword">typedef</span> <a class="code" href="class_d_l___private_key___g_f_p.html" title="DL private key (in GF(p) groups).">DL_PrivateKey_GFP&lt;GroupParameters&gt;</a> <a class="code" href="class_d_l___private_key___g_f_p.html" title="DL private key (in GF(p) groups).">PrivateKey</a>;
<a name="l00261"></a>00261 };
<a name="l00262"></a>00262 <span class="comment"></span>
<a name="l00263"></a>00263 <span class="comment">//! provided for backwards compatibility, this class uses the old non-standard Crypto++ key format</span>