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<a name="l00097"></a>00097 <span class="preprocessor">#else</span><a name="l00098"></a>00098 <span class="preprocessor"></span> <span class="comment">// this is used to allow this function to compile on platforms that don't have auto-seeded RNGs</span><a name="l00099"></a>00099 <a class="code" href="class_random_number_generator.html" title="interface for random number generators">RandomNumberGenerator</a> &rng(NullRNG());<a name="l00100"></a>00100 <span class="preprocessor">#endif</span><a name="l00101"></a>00101 <span class="preprocessor"></span><a name="l00102"></a>00102 <span class="comment">// generate DSA key</span><a name="l00103"></a>00103 <a class="code" href="class_d_l___private_key___with_signature_pairwise_consistency_test.html" title="_">DSA::PrivateKey</a> dsaPrivateKey;<a name="l00104"></a>00104 dsaPrivateKey.GenerateRandomWithKeySize(rng, 1024);<a name="l00105"></a>00105 <a class="code" href="class_d_l___public_key___g_f_p.html">DSA::PublicKey</a> dsaPublicKey;<a name="l00106"></a>00106 dsaPublicKey.<a class="code" href="class_d_l___public_key_impl.html#fa2dcb7fc8d0d83dd6d4563b7ba6ca41">AssignFrom</a>(dsaPrivateKey);<a name="l00107"></a>00107 <span class="keywordflow">if</span> (!dsaPrivateKey.Validate(rng, 3) || !dsaPublicKey.<a class="code" href="class_d_l___public_key_impl.html#d915aa79d9a19b4c7a6bab99181250b1" title="check this object for errors">Validate</a>(rng, 3))<a name="l00108"></a>00108 {<a name="l00109"></a>00109 cerr << <span class="stringliteral">"DSA key generation failed.\n"</span>;<a name="l00110"></a>00110 abort();<a name="l00111"></a>00111 }<a name="l00112"></a>00112 cout << <span class="stringliteral">"5. DSA key generation succeeded.\n"</span>;<a name="l00113"></a>00113 <a name="l00114"></a>00114 <span class="comment">// encode DSA key</span><a name="l00115"></a>00115 std::string encodedDsaPublicKey, encodedDsaPrivateKey;<a name="l00116"></a>00116 dsaPublicKey.<a class="code" href="class_x509_public_key.html#dfd76c247053ce6f771411ea2b5a9ff5" title="encode this object into a BufferedTransformation, using DER (Distinguished Encoding...">DEREncode</a>(<a class="code" href="class_string_sink_template.html" title="Append input to a string object.">StringSink</a>(encodedDsaPublicKey).Ref());<a name="l00117"></a>00117 dsaPrivateKey.DEREncode(<a class="code" href="class_string_sink_template.html" title="Append input to a string object.">StringSink</a>(encodedDsaPrivateKey).Ref());<a name="l00118"></a>00118 <a name="l00119"></a>00119 <span class="comment">// decode DSA key</span><a name="l00120"></a>00120 <a class="code" href="class_d_l___private_key___with_signature_pairwise_consistency_test.html" title="_">DSA::PrivateKey</a> decodedDsaPrivateKey;<a name="l00121"></a>00121 decodedDsaPrivateKey.BERDecode(<a class="code" href="class_string_store.html" title="string-based implementation of Store interface">StringStore</a>(encodedDsaPrivateKey).Ref());<a name="l00122"></a>00122 <a class="code" href="class_d_l___public_key___g_f_p.html">DSA::PublicKey</a> decodedDsaPublicKey;<a name="l00123"></a>00123 decodedDsaPublicKey.<a class="code" href="class_x509_public_key.html#4eb86b0b55185f10a13ff7e1b083a67b" title="decode this object from a BufferedTransformation, using BER (Basic Encoding Rules)...">BERDecode</a>(<a class="code" href="class_string_store.html" title="string-based implementation of Store interface">StringStore</a>(encodedDsaPublicKey).Ref());<a name="l00124"></a>00124 <a name="l00125"></a>00125 <span class="keywordflow">if</span> (!decodedDsaPrivateKey.Validate(rng, 3) || !decodedDsaPublicKey.<a class="code" href="class_d_l___public_key_impl.html#d915aa79d9a19b4c7a6bab99181250b1" title="check this object for errors">Validate</a>(rng, 3))<a name="l00126"></a>00126 {<a name="l00127"></a>00127 cerr << <span class="stringliteral">"DSA key encode/decode failed.\n"</span>;<a name="l00128"></a>00128 abort();<a name="l00129"></a>00129 }<a name="l00130"></a>00130 cout << <span class="stringliteral">"6. DSA key encode/decode succeeded.\n"</span>;<a name="l00131"></a>00131 <a name="l00132"></a>00132 <span class="comment">// sign and verify</span><a name="l00133"></a>00133 byte signature[40];<a name="l00134"></a>00134 <a class="code" href="class_p_k___final_template.html" title="A template implementing constructors for public key algorithm classes.">DSA::Signer</a> signer(dsaPrivateKey);<a name="l00135"></a>00135 assert(signer.SignatureLength() == 40);<a name="l00136"></a>00136 signer.SignMessage(rng, message, 3, signature);<a name="l00137"></a>00137 <a name="l00138"></a>00138 <a class="code" href="class_p_k___final_template.html" title="A template implementing constructors for public key algorithm classes.">DSA::Verifier</a> verifier(dsaPublicKey);<a name="l00139"></a>00139 <span class="keywordflow">if</span> (!verifier.VerifyMessage(message, 3, signature, <span class="keyword">sizeof</span>(signature)))<a name="l00140"></a>00140 {<a name="l00141"></a>00141 cerr << <span class="stringliteral">"DSA signature and verification failed.\n"</span>;<a name="l00142"></a>00142 abort();<a name="l00143"></a>00143 }<a name="l00144"></a>00144 cout << <span class="stringliteral">"7. DSA signature and verification succeeded.\n"</span>;<a name="l00145"></a>00145 <a name="l00146"></a>00146 <a name="l00147"></a>00147 <span class="comment">// try to verify an invalid signature</span><a name="l00148"></a>00148 signature[0] ^= 1;<a name="l00149"></a>00149 <span class="keywordflow">if</span> (verifier.VerifyMessage(message, 3, signature, <span class="keyword">sizeof</span>(signature)))<a name="l00150"></a>00150 {<a name="l00151"></a>00151 cerr << <span class="stringliteral">"DSA signature verification failed to detect bad signature.\n"</span>;<a name="l00152"></a>00152 abort();<a name="l00153"></a>00153 }<a name="l00154"></a>00154 cout << <span class="stringliteral">"8. DSA signature verification successfully detected bad signature.\n"</span>;<a name="l00155"></a>00155 <a name="l00156"></a>00156 <span class="comment">// try to use an invalid key length</span><a name="l00157"></a>00157 <span class="keywordflow">try</span><a name="l00158"></a>00158 {<a name="l00159"></a>00159 <a class="code" href="struct_e_c_b___mode.html" title="ECB mode.">ECB_Mode<DES_EDE3>::Encryption</a> encryption_DES_EDE3_ECB;<a name="l00160"></a>00160 encryption_DES_EDE3_ECB.SetKey(key, 5);<a name="l00161"></a>00161 <a name="l00162"></a>00162 <span class="comment">// should not be here</span><a name="l00163"></a>00163 cerr << <span class="stringliteral">"DES-EDE3 implementation did not detect use of invalid key length.\n"</span>;<a name="l00164"></a>00164 abort();<a name="l00165"></a>00165 }<a name="l00166"></a>00166 <span class="keywordflow">catch</span> (<a class="code" href="class_invalid_argument.html" title="exception thrown when an invalid argument is detected">InvalidArgument</a> &e)<a name="l00167"></a>00167 {<a name="l00168"></a>00168 cout << <span class="stringliteral">"9. Caught expected exception when using invalid key length. Exception message follows: "</span>;<a name="l00169"></a>00169 cout << e.<a class="code" href="class_exception.html#dd710fe2bae3ac497ed60393eea35c91">what</a>() << endl;<a name="l00170"></a>00170 }<a name="l00171"></a>00171 <a name="l00172"></a>00172 cout << <span class="stringliteral">"\nFIPS 140-2 Sample Application completed normally.\n"</span>;<a name="l00173"></a>00173 }<a name="l00174"></a>00174 <a name="l00175"></a>00175 <span class="preprocessor">#ifdef CRYPTOPP_IMPORTS</span><a name="l00176"></a>00176 <span class="preprocessor"></span><a name="l00177"></a>00177 <span class="keyword">static</span> PNew s_pNew = NULL;<a name="l00178"></a>00178 <span class="keyword">static</span> PDelete s_pDelete = NULL;<a name="l00179"></a>00179 <a name="l00180"></a>00180 <span class="keyword">extern</span> <span class="stringliteral">"C"</span> __declspec(dllexport) void __cdecl SetNewAndDeleteFromCryptoPP(PNew pNew, PDelete pDelete, PSetNewHandler pSetNewHandler)<a name="l00181"></a>00181 {<a name="l00182"></a>00182 s_pNew = pNew;<a name="l00183"></a>00183 s_pDelete = pDelete;<a name="l00184"></a>00184 }<a name="l00185"></a>00185 <a name="l00186"></a>00186 <span class="keywordtype">void</span> * __cdecl operator new (<span class="keywordtype">size_t</span> size)<a name="l00187"></a>00187 {<a name="l00188"></a>00188 <span class="keywordflow">return</span> s_pNew(size);<a name="l00189"></a>00189 }<a name="l00190"></a>00190 <a name="l00191"></a>00191 <span class="keywordtype">void</span> __cdecl operator delete (<span class="keywordtype">void</span> * p)<a name="l00192"></a>00192 {<a name="l00193"></a>00193 s_pDelete(p);<a name="l00194"></a>00194 }<a name="l00195"></a>00195 <a name="l00196"></a>00196 <span class="preprocessor">#endif</span><a name="l00197"></a>00197 <span class="preprocessor"></span><a name="l00198"></a>00198 <span class="preprocessor">#ifdef CRYPTOPP_DLL_ONLY</span><a name="l00199"></a>00199 <span class="preprocessor"></span><a name="l00200"></a>00200 <span class="keywordtype">int</span> __cdecl main()<a name="l00201"></a>00201 {<a name="l00202"></a>00202 FIPS140_SampleApplication();<a name="l00203"></a>00203 <span class="keywordflow">return</span> 0;<a name="l00204"></a>00204 }<a name="l00205"></a>00205 <a name="l00206"></a>00206 <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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