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Crypto++是一个非常强大的密码学库,主要是功能全

00123 
00124 <span class="comment">// ************** implementation helper for SimpledKeyed ***************</span>
00125 
00126 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
00127 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> CheckedSetKey(T *obj, Empty empty, <span class="keyword">const</span> byte *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &amp;param)
00128 {
00129         obj-&gt;ThrowIfInvalidKeyLength(length);
00130         obj-&gt;UncheckedSetKey(key, length);
00131 }
00132 
00133 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
00134 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> CheckedSetKey(T *obj, CipherDir dir, <span class="keyword">const</span> byte *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &amp;param)
00135 {
00136         obj-&gt;ThrowIfInvalidKeyLength(length);
00137         obj-&gt;UncheckedSetKey(dir, key, length);
00138 }
00139 <span class="comment"></span>
00140 <span class="comment">//! .</span>
00141 <span class="comment"></span><span class="keyword">template</span> &lt;<span class="keyword">class</span> BASE, <span class="keyword">class</span> INFO = BASE&gt;
<a name="l00142"></a><a class="code" href="class_simple_keying_interface_impl.html">00142</a> <span class="keyword">class </span><a class="code" href="class_simple_keying_interface_impl.html">SimpleKeyingInterfaceImpl</a> : <span class="keyword">public</span> BASE
00143 {
00144 <span class="keyword">public</span>:
00145         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> MinKeyLength()<span class="keyword"> const </span>{<span class="keywordflow">return</span> INFO::MIN_KEYLENGTH;}
00146         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> MaxKeyLength()<span class="keyword"> const </span>{<span class="keywordflow">return</span> INFO::MAX_KEYLENGTH;}
00147         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> DefaultKeyLength()<span class="keyword"> const </span>{<span class="keywordflow">return</span> INFO::DEFAULT_KEYLENGTH;}
00148         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetValidKeyLength(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> n)<span class="keyword"> const </span>{<span class="keywordflow">return</span> INFO::StaticGetValidKeyLength(n);}
00149         <span class="keyword">typename</span> BASE::IV_Requirement IVRequirement()<span class="keyword"> const </span>{<span class="keywordflow">return</span> (<span class="keyword">typename</span> BASE::IV_Requirement)INFO::IV_REQUIREMENT;}
00150 
00151 <span class="keyword">protected</span>:
00152         <span class="keywordtype">void</span> AssertValidKeyLength(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length) {assert(GetValidKeyLength(length) == length);}
00153 };
00154 
00155 <span class="keyword">template</span> &lt;<span class="keyword">class</span> INFO, <span class="keyword">class</span> BASE = BlockCipher&gt;
00156 <span class="keyword">class </span>BlockCipherBaseTemplate : <span class="keyword">public</span> AlgorithmImpl&lt;SimpleKeyingInterfaceImpl&lt;BASE, INFO&gt;, INFO&gt;, <span class="keyword">public</span> INFO
00157 {
00158 <span class="keyword">public</span>:
00159         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="namespace_name.html#a9">BlockSize</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> BLOCKSIZE;}
00160 };
00161 
00162 <span class="comment">/*</span>
00163 <span class="comment">#define CRYPTOPP_DLL_TEMPLATE_CLASS_BlockCipherBaseTemplate(Info)       \</span>
00164 <span class="comment">CRYPTOPP_DLL_TEMPLATE_CLASS TwoBases&lt;Info, BlockCipher&gt;;        \</span>
00165 <span class="comment">CRYPTOPP_DLL_TEMPLATE_CLASS SimpleKeyingInterfaceImpl&lt;TwoBases&lt;Info, BlockCipher&gt; &gt;;    \</span>
00166 <span class="comment">CRYPTOPP_DLL_TEMPLATE_CLASS AlgorithmImpl&lt;SimpleKeyingInterfaceImpl&lt;TwoBases&lt;Info, BlockCipher&gt; &gt; &gt;;    \</span>
00167 <span class="comment">CRYPTOPP_DLL_TEMPLATE_CLASS BlockCipherBaseTemplate&lt;Info&gt;;</span>
00168 <span class="comment">*/</span>
00169 <span class="comment"></span>
00170 <span class="comment">//! .</span>
00171 <span class="comment"></span><span class="keyword">template</span> &lt;CipherDir DIR, <span class="keyword">class</span> BASE&gt;
<a name="l00172"></a><a class="code" href="class_block_cipher_template.html">00172</a> <span class="keyword">class </span><a class="code" href="class_block_cipher_template.html">BlockCipherTemplate</a> : <span class="keyword">public</span> BASE
00173 {
00174 <span class="keyword">public</span>:
00175         <a class="code" href="class_block_cipher_template.html">BlockCipherTemplate</a>() {}
00176         <a class="code" href="class_block_cipher_template.html">BlockCipherTemplate</a>(<span class="keyword">const</span> byte *key)
00177                 {SetKey(key, DEFAULT_KEYLENGTH);}
00178         <a class="code" href="class_block_cipher_template.html">BlockCipherTemplate</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length)
00179                 {SetKey(key, length);}
00180         <a class="code" href="class_block_cipher_template.html">BlockCipherTemplate</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rounds)
00181                 {SetKeyWithRounds(key, length, rounds);}
00182 
00183         <span class="keywordtype">bool</span> IsForwardTransformation()<span class="keyword"> const </span>{<span class="keywordflow">return</span> DIR == ENCRYPTION;}
00184 
00185         <span class="keywordtype">void</span> SetKey(<span class="keyword">const</span> byte *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &amp;param = g_nullNameValuePairs)
00186         {
00187                 CheckedSetKey(<span class="keyword">this</span>, DIR, key, length, param);
00188         }
00189 
00190         <a class="code" href="class_clonable.html">Clonable</a> * Clone() {<span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_block_cipher_template.html">BlockCipherTemplate&lt;DIR, BASE&gt;</a>(*this);}
00191 };
00192 <span class="comment"></span>
00193 <span class="comment">//! .</span>
00194 <span class="comment"></span><span class="keyword">template</span> &lt;<span class="keyword">class</span> BASE, <span class="keyword">class</span> INFO = BASE&gt;
<a name="l00195"></a><a class="code" href="class_message_authentication_code_final_template.html">00195</a> <span class="keyword">class </span><a class="code" href="class_message_authentication_code_final_template.html">MessageAuthenticationCodeFinalTemplate</a> : <span class="keyword">public</span> 
00196 #ifdef CRYPTOPP_DOXYGEN_PROCESSING
00197         <a class="code" href="class_message_authentication_code.html">MessageAuthenticationCode</a>
00198 #else
00199         AlgorithmImpl&lt;SimpleKeyingInterfaceImpl&lt;BASE, INFO&gt;, INFO&gt;
00200 #endif
00201 {
00202 <span class="keyword">public</span>:
00203         <a class="code" href="class_message_authentication_code_final_template.html">MessageAuthenticationCodeFinalTemplate</a>() {}
00204         <a class="code" href="class_message_authentication_code_final_template.html">MessageAuthenticationCodeFinalTemplate</a>(<span class="keyword">const</span> byte *key)
00205                 {<a class="code" href="class_message_authentication_code_final_template.html#_message_authentication_code_final_templatea3">SetKey</a>(key, DEFAULT_KEYLENGTH);}
00206         <a class="code" href="class_message_authentication_code_final_template.html">MessageAuthenticationCodeFinalTemplate</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length)
00207                 {<a class="code" href="class_message_authentication_code_final_template.html#_message_authentication_code_final_templatea3">SetKey</a>(key, length);}
00208 
<a name="l00209"></a><a class="code" href="class_message_authentication_code_final_template.html#_message_authentication_code_final_templatea3">00209</a>         <span class="keywordtype">void</span> <a class="code" href="class_message_authentication_code_final_template.html#_message_authentication_code_final_templatea3">SetKey</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &amp;param = g_nullNameValuePairs)
00210         {
00211                 CheckedSetKey(<span class="keyword">this</span>, Empty(), key, length, param);
00212         }
00213 
00214         <a class="code" href="class_clonable.html">Clonable</a> * <a class="code" href="class_clonable.html#_zlib_decompressora18">Clone</a>() {<span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_message_authentication_code_final_template.html">MessageAuthenticationCodeFinalTemplate&lt;BASE, INFO&gt;</a>(*this);}
00215 };
00216 
00217 <span class="comment">// ************** documentation ***************</span>
00218 <span class="comment"></span>
00219 <span class="comment">//! These objects usually should not be used directly. See CipherModeDocumentation instead.</span>
00220 <span class="comment"></span><span class="comment">/*! Each class derived from this one defines two types, Encryption and Decryption, </span>
00221 <span class="comment">        both of which implement the BlockCipher interface. */</span>
<a name="l00222"></a><a class="code" href="struct_block_cipher_documentation.html">00222</a> <span class="keyword">struct </span><a class="code" href="struct_block_cipher_documentation.html">BlockCipherDocumentation</a>
00223 {<span class="comment"></span>
00224 <span class="comment">        //! implements the BlockCipher interface</span>
<a name="l00225"></a><a class="code" href="struct_block_cipher_documentation.html#_r_c2w4">00225</a> <span class="comment"></span>        <span class="keyword">typedef</span> <a class="code" href="class_block_cipher.html">BlockCipher</a> <a class="code" href="class_block_cipher.html">Encryption</a>;<span class="comment"></span>
00226 <span class="comment">        //! implements the BlockCipher interface</span>
<a name="l00227"></a><a class="code" href="struct_block_cipher_documentation.html#_r_c2w5">00227</a> <span class="comment"></span>        <span class="keyword">typedef</span> <a class="code" href="class_block_cipher.html">BlockCipher</a> <a class="code" href="class_block_cipher.html">Decryption</a>;
00228 };
00229 <span class="comment"></span>
00230 <span class="comment">/*! \brief Each class derived from this one defines two types, Encryption and Decryption, </span>
00231 <span class="comment">        both of which implement the SymmetricCipher interface. See CipherModeDocumentation</span>
00232 <span class="comment">        for information about using block ciphers. */</span>
<a name="l00233"></a><a class="code" href="struct_symmetric_cipher_documentation.html">00233</a> <span class="keyword">struct </span><a class="code" href="struct_symmetric_cipher_documentation.html">SymmetricCipherDocumentation</a>
00234 {<span class="comment"></span>
00235 <span class="comment">        //! implements the SymmetricCipher interface</span>
<a name="l00236"></a><a class="code" href="struct_symmetric_cipher_documentation.html#_symmetric_cipher_documentationw0">00236</a> <span class="comment"></span>        <span class="keyword">typedef</span> <a class="code" href="class_symmetric_cipher.html">SymmetricCipher</a> <a class="code" href="class_symmetric_cipher.html">Encryption</a>;<span class="comment"></span>
00237 <span class="comment">        //! implements the SymmetricCipher interface</span>
<a name="l00238"></a><a class="code" href="struct_symmetric_cipher_documentation.html#_symmetric_cipher_documentationw1">00238</a> <span class="comment"></span>        <span class="keyword">typedef</span> <a class="code" href="class_symmetric_cipher.html">SymmetricCipher</a> <a class="code" href="class_symmetric_cipher.html">Decryption</a>;
00239 };
00240 
00241 NAMESPACE_END
00242 
00243 <span class="preprocessor">#endif</span>
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