📄 luc_8cpp-source.html
字号:
<a name="l00138"></a>00138 <a name="l00139"></a>00139 <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> version(seq);<a name="l00140"></a>00140 <span class="keywordflow">if</span> (!!version) <span class="comment">// make sure version is 0</span><a name="l00141"></a>00141 BERDecodeError();<a name="l00142"></a>00142 <a name="l00143"></a>00143 <a class="code" href="class_l_u_c_function.html#41b10646a07c3aacb8a444f83d39019a">m_n</a>.<a class="code" href="class_integer.html#810fc0382f8928893fe192ab79b1972c">BERDecode</a>(seq);<a name="l00144"></a>00144 <a class="code" href="class_l_u_c_function.html#aa3b521dfa4f330a1334e1ba6673a178">m_e</a>.<a class="code" href="class_integer.html#810fc0382f8928893fe192ab79b1972c">BERDecode</a>(seq);<a name="l00145"></a>00145 <a class="code" href="class_invertible_l_u_c_function.html#99df901efd56a9f49071744649f99539">m_p</a>.<a class="code" href="class_integer.html#810fc0382f8928893fe192ab79b1972c">BERDecode</a>(seq);<a name="l00146"></a>00146 <a class="code" href="class_invertible_l_u_c_function.html#282ee27e938e471f89a66fe743189e75">m_q</a>.<a class="code" href="class_integer.html#810fc0382f8928893fe192ab79b1972c">BERDecode</a>(seq);<a name="l00147"></a>00147 <a class="code" href="class_invertible_l_u_c_function.html#3ae87b160da160f48298ef7ec1d2451e">m_u</a>.<a class="code" href="class_integer.html#810fc0382f8928893fe192ab79b1972c">BERDecode</a>(seq);<a name="l00148"></a>00148 seq.<a class="code" href="class_b_e_r_general_decoder.html#40b14625c98ac7febb8ca218d02358ad">MessageEnd</a>();<a name="l00149"></a>00149 }<a name="l00150"></a>00150 <a name="l00151"></a><a class="code" href="class_invertible_l_u_c_function.html#e6da11b6ee13f6c12fd95592bdda95ad">00151</a> <span class="keywordtype">void</span> <a class="code" href="class_invertible_l_u_c_function.html#e6da11b6ee13f6c12fd95592bdda95ad">InvertibleLUCFunction::DEREncode</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &bt)<span class="keyword"> const</span><a name="l00152"></a>00152 <span class="keyword"></span>{<a name="l00153"></a>00153 <a class="code" href="class_d_e_r_sequence_encoder.html" title="DER Sequence Encoder.">DERSequenceEncoder</a> seq(bt);<a name="l00154"></a>00154 <a name="l00155"></a>00155 <span class="keyword">const</span> byte version[] = {INTEGER, 1, 0};<a name="l00156"></a>00156 seq.<a class="code" href="class_buffered_transformation.html#e70658b0d271f8e114ac6c3cc9774ede" title="input a byte for processing">Put</a>(version, <span class="keyword">sizeof</span>(version));<a name="l00157"></a>00157 <a class="code" href="class_l_u_c_function.html#41b10646a07c3aacb8a444f83d39019a">m_n</a>.<a class="code" href="class_integer.html#6ab51a05bee88cfa690179611e8a084e" title="encode using Distinguished Encoding Rules, put result into a BufferedTransformation...">DEREncode</a>(seq);<a name="l00158"></a>00158 <a class="code" href="class_l_u_c_function.html#aa3b521dfa4f330a1334e1ba6673a178">m_e</a>.<a class="code" href="class_integer.html#6ab51a05bee88cfa690179611e8a084e" title="encode using Distinguished Encoding Rules, put result into a BufferedTransformation...">DEREncode</a>(seq);<a name="l00159"></a>00159 <a class="code" href="class_invertible_l_u_c_function.html#99df901efd56a9f49071744649f99539">m_p</a>.<a class="code" href="class_integer.html#6ab51a05bee88cfa690179611e8a084e" title="encode using Distinguished Encoding Rules, put result into a BufferedTransformation...">DEREncode</a>(seq);<a name="l00160"></a>00160 <a class="code" href="class_invertible_l_u_c_function.html#282ee27e938e471f89a66fe743189e75">m_q</a>.<a class="code" href="class_integer.html#6ab51a05bee88cfa690179611e8a084e" title="encode using Distinguished Encoding Rules, put result into a BufferedTransformation...">DEREncode</a>(seq);<a name="l00161"></a>00161 <a class="code" href="class_invertible_l_u_c_function.html#3ae87b160da160f48298ef7ec1d2451e">m_u</a>.<a class="code" href="class_integer.html#6ab51a05bee88cfa690179611e8a084e" title="encode using Distinguished Encoding Rules, put result into a BufferedTransformation...">DEREncode</a>(seq);<a name="l00162"></a>00162 seq.<a class="code" href="class_d_e_r_general_encoder.html#cb5f1a94ba97027c603b019bd5228510">MessageEnd</a>();<a name="l00163"></a>00163 }<a name="l00164"></a>00164 <a name="l00165"></a><a class="code" href="class_invertible_l_u_c_function.html#0b8820769716f340ad154a428b53907e">00165</a> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> <a class="code" href="class_invertible_l_u_c_function.html#0b8820769716f340ad154a428b53907e">InvertibleLUCFunction::CalculateInverse</a>(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &rng, <span class="keyword">const</span> <a class="code" href="class_integer.html" title="multiple precision integer and basic arithmetics">Integer</a> &x)<span class="keyword"> const</span><a name="l00166"></a>00166 <span class="keyword"></span>{<a name="l00167"></a>00167 <span class="comment">// not clear how to do blinding with LUC</span><a name="l00168"></a>00168 <a class="code" href="class_crypto_material.html#a1da44802c5cf00946043922cb9e7e6e">DoQuickSanityCheck</a>();<a name="l00169"></a>00169 <span class="keywordflow">return</span> InverseLucas(<a class="code" href="class_l_u_c_function.html#aa3b521dfa4f330a1334e1ba6673a178">m_e</a>, x, <a class="code" href="class_invertible_l_u_c_function.html#282ee27e938e471f89a66fe743189e75">m_q</a>, <a class="code" href="class_invertible_l_u_c_function.html#99df901efd56a9f49071744649f99539">m_p</a>, <a class="code" href="class_invertible_l_u_c_function.html#3ae87b160da160f48298ef7ec1d2451e">m_u</a>);<a name="l00170"></a>00170 }<a name="l00171"></a>00171 <a name="l00172"></a><a class="code" href="class_invertible_l_u_c_function.html#b5c7b3d5b5d0b9509f8180a43370533b">00172</a> <span class="keywordtype">bool</span> <a class="code" href="class_invertible_l_u_c_function.html#b5c7b3d5b5d0b9509f8180a43370533b" title="check this object for errors">InvertibleLUCFunction::Validate</a>(<a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &rng, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> level)<span class="keyword"> const</span><a name="l00173"></a>00173 <span class="keyword"></span>{<a name="l00174"></a>00174 <span class="keywordtype">bool</span> pass = <a class="code" href="class_l_u_c_function.html#ba4694feec6ef453e2ef0f6fb586ca0c" title="check this object for errors">LUCFunction::Validate</a>(rng, level);<a name="l00175"></a>00175 pass = pass && <a class="code" href="class_invertible_l_u_c_function.html#99df901efd56a9f49071744649f99539">m_p</a> > <a class="code" href="class_integer.html#8c070592581bf6c2f928c72bfa1c1638" title="avoid calling constructors for these frequently used integers">Integer::One</a>() && <a class="code" href="class_invertible_l_u_c_function.html#99df901efd56a9f49071744649f99539">m_p</a>.<a class="code" href="class_integer.html#ed4bb7208a18b986ef3e1a7d92e06d1d">IsOdd</a>() && <a class="code" href="class_invertible_l_u_c_function.html#99df901efd56a9f49071744649f99539">m_p</a> < <a class="code" href="class_l_u_c_function.html#41b10646a07c3aacb8a444f83d39019a">m_n</a>;<a name="l00176"></a>00176 pass = pass && <a class="code" href="class_invertible_l_u_c_function.html#282ee27e938e471f89a66fe743189e75">m_q</a> > <a class="code" href="class_integer.html#8c070592581bf6c2f928c72bfa1c1638" title="avoid calling constructors for these frequently used integers">Integer::One</a>() && <a class="code" href="class_invertible_l_u_c_function.html#282ee27e938e471f89a66fe743189e75">m_q</a>.<a class="code" href="class_integer.html#ed4bb7208a18b986ef3e1a7d92e06d1d">IsOdd</a>() && <a class="code" href="class_invertible_l_u_c_function.html#282ee27e938e471f89a66fe743189e75">m_q</a> < m_n;<a name="l00177"></a>00177 pass = pass && <a class="code" href="class_invertible_l_u_c_function.html#3ae87b160da160f48298ef7ec1d2451e">m_u</a>.<a class="code" href="class_integer.html#13ddbfd8e9729932c2a99b0dff530978">IsPositive</a>() && <a class="code" href="class_invertible_l_u_c_function.html#3ae87b160da160f48298ef7ec1d2451e">m_u</a> < <a class="code" href="class_invertible_l_u_c_function.html#99df901efd56a9f49071744649f99539">m_p</a>;<a name="l00178"></a>00178 <span class="keywordflow">if</span> (level >= 1)<a name="l00179"></a>00179 {<a name="l00180"></a>00180 pass = pass && m_p * <a class="code" href="class_invertible_l_u_c_function.html#282ee27e938e471f89a66fe743189e75">m_q</a> == m_n;<a name="l00181"></a>00181 pass = pass && RelativelyPrime(<a class="code" href="class_l_u_c_function.html#aa3b521dfa4f330a1334e1ba6673a178">m_e</a>, m_p+1);<a name="l00182"></a>00182 pass = pass && RelativelyPrime(<a class="code" href="class_l_u_c_function.html#aa3b521dfa4f330a1334e1ba6673a178">m_e</a>, m_p-1);<a name="l00183"></a>00183 pass = pass && RelativelyPrime(<a class="code" href="class_l_u_c_function.html#aa3b521dfa4f330a1334e1ba6673a178">m_e</a>, m_q+1);<a name="l00184"></a>00184 pass = pass && RelativelyPrime(<a class="code" href="class_l_u_c_function.html#aa3b521dfa4f330a1334e1ba6673a178">m_e</a>, m_q-1);<a name="l00185"></a>00185 pass = pass && <a class="code" href="class_invertible_l_u_c_function.html#3ae87b160da160f48298ef7ec1d2451e">m_u</a> * m_q % m_p == 1;<a name="l00186"></a>00186 }<a name="l00187"></a>00187 <span class="keywordflow">if</span> (level >= 2)<a name="l00188"></a>00188 pass = pass && VerifyPrime(rng, m_p, level-2) && VerifyPrime(rng, <a class="code" href="class_invertible_l_u_c_function.html#282ee27e938e471f89a66fe743189e75">m_q</a>, level-2);<a name="l00189"></a>00189 <span class="keywordflow">return</span> pass;<a name="l00190"></a>00190 }<a name="l00191"></a>00191 <a name="l00192"></a><a class="code" href="class_invertible_l_u_c_function.html#882c26c94e15ecb1added6f3fafae021">00192</a> <span class="keywordtype">bool</span> <a class="code" href="class_invertible_l_u_c_function.html#882c26c94e15ecb1added6f3fafae021" title="to be implemented by derived classes, users should use one of the above functions...">InvertibleLUCFunction::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><a name="l00193"></a>00193 <span class="keyword"></span>{<a name="l00194"></a>00194 <span class="keywordflow">return</span> GetValueHelper<LUCFunction>(<span class="keyword">this</span>, name, valueType, pValue).Assignable()<a name="l00195"></a>00195 CRYPTOPP_GET_FUNCTION_ENTRY(Prime1)<a name="l00196"></a>00196 CRYPTOPP_GET_FUNCTION_ENTRY(Prime2)<a name="l00197"></a>00197 CRYPTOPP_GET_FUNCTION_ENTRY(MultiplicativeInverseOfPrime2ModPrime1)<a name="l00198"></a>00198 ;<a name="l00199"></a>00199 }<a name="l00200"></a>00200 <a name="l00201"></a><a class="code" href="class_invertible_l_u_c_function.html#aaef1b335de1f76ec61079d1dfd78744">00201</a> <span class="keywordtype">void</span> <a class="code" href="class_invertible_l_u_c_function.html#aaef1b335de1f76ec61079d1dfd78744" title="assign values from source to this object">InvertibleLUCFunction::AssignFrom</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &source)<a name="l00202"></a>00202 {<a name="l00203"></a>00203 AssignFromHelper<LUCFunction>(<span class="keyword">this</span>, source)<a name="l00204"></a>00204 CRYPTOPP_SET_FUNCTION_ENTRY(Prime1)<a name="l00205"></a>00205 CRYPTOPP_SET_FUNCTION_ENTRY(Prime2)<a name="l00206"></a>00206 CRYPTOPP_SET_FUNCTION_ENTRY(MultiplicativeInverseOfPrime2ModPrime1)<a name="l00207"></a>00207 ;<a name="l00208"></a>00208 }<a name="l00209"></a>00209 <a name="l00210"></a>00210 NAMESPACE_END</pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Fri Jun 1 11:11:22 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
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -