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cryptopp-doc-5.6.1-0.1.svn479.fc13.i686.rpm

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<h1>rc2.h</h1><a href="rc2_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_RC2_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_RC2_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span><span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment">/** \file</span>
<a name="l00005"></a>00005 <span class="comment">*/</span>
<a name="l00006"></a>00006 
<a name="l00007"></a>00007 <span class="preprocessor">#include &quot;seckey.h&quot;</span>
<a name="l00008"></a>00008 <span class="preprocessor">#include &quot;secblock.h&quot;</span>
<a name="l00009"></a>00009 <span class="preprocessor">#include &quot;algparam.h&quot;</span>
<a name="l00010"></a>00010 
<a name="l00011"></a>00011 NAMESPACE_BEGIN(CryptoPP)
<a name="l00012"></a>00012 
<a name="l00013"></a>00013 <span class="comment">//! _</span>
<a name="l00014"></a><a class="code" href="struct_r_c2___info.html">00014</a> <span class="comment"></span>struct <a class="code" href="struct_r_c2___info.html" title="_">RC2_Info</a> : public <a class="code" href="class_fixed_block_size.html" title="to be inherited by block ciphers with fixed block size">FixedBlockSize</a>&lt;8&gt;, public <a class="code" href="class_variable_key_length.html" title="support query of variable key length, template parameters are default, min, max,...">VariableKeyLength</a>&lt;16, 1, 128&gt;
<a name="l00015"></a>00015 {
<a name="l00016"></a>00016         CRYPTOPP_CONSTANT(DEFAULT_EFFECTIVE_KEYLENGTH = 1024)
<a name="l00017"></a>00017         CRYPTOPP_CONSTANT(MAX_EFFECTIVE_KEYLENGTH = 1024)
<a name="l00018"></a>00018         <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">&quot;RC2&quot;</span>;}
<a name="l00019"></a>00019 };
<a name="l00020"></a>00020 <span class="comment"></span>
<a name="l00021"></a>00021 <span class="comment">/// &lt;a href=&quot;http://www.weidai.com/scan-mirror/cs.html#RC2&quot;&gt;RC2&lt;/a&gt;</span>
<a name="l00022"></a><a class="code" href="class_r_c2.html">00022</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_r_c2.html" title="RC2">RC2</a> : <span class="keyword">public</span> <a class="code" href="struct_r_c2___info.html" title="_">RC2_Info</a>, <span class="keyword">public</span> <a class="code" href="struct_block_cipher_documentation.html" title="These objects usually should not be used directly. See CipherModeDocumentation instead...">BlockCipherDocumentation</a>
<a name="l00023"></a>00023 {
<a name="l00024"></a>00024         <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Base : <span class="keyword">public</span> <a class="code" href="class_block_cipher_impl.html">BlockCipherImpl</a>&lt;RC2_Info&gt;
<a name="l00025"></a>00025         {
<a name="l00026"></a>00026         <span class="keyword">public</span>:
<a name="l00027"></a>00027                 <span class="keywordtype">void</span> UncheckedSetKey(<span class="keyword">const</span> byte *userKey, <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" title="interface for retrieving values given their names">NameValuePairs</a> &amp;params);
<a name="l00028"></a>00028                 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> OptimalDataAlignment()<span class="keyword"> const </span>{<span class="keywordflow">return</span> GetAlignmentOf&lt;word16&gt;();}
<a name="l00029"></a>00029 
<a name="l00030"></a>00030         <span class="keyword">protected</span>:
<a name="l00031"></a>00031                 <a class="code" href="class_fixed_size_sec_block.html">FixedSizeSecBlock&lt;word16, 64&gt;</a> K;  <span class="comment">// expanded key table</span>
<a name="l00032"></a>00032         };
<a name="l00033"></a>00033 
<a name="l00034"></a>00034         <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Enc : <span class="keyword">public</span> Base
<a name="l00035"></a>00035         {
<a name="l00036"></a>00036         <span class="keyword">public</span>:
<a name="l00037"></a>00037                 <span class="keywordtype">void</span> ProcessAndXorBlock(<span class="keyword">const</span> byte *inBlock, <span class="keyword">const</span> byte *xorBlock, byte *outBlock) <span class="keyword">const</span>;
<a name="l00038"></a>00038         };
<a name="l00039"></a>00039 
<a name="l00040"></a>00040         <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Dec : <span class="keyword">public</span> Base
<a name="l00041"></a>00041         {
<a name="l00042"></a>00042         <span class="keyword">public</span>:
<a name="l00043"></a>00043                 <span class="keywordtype">void</span> ProcessAndXorBlock(<span class="keyword">const</span> byte *inBlock, <span class="keyword">const</span> byte *xorBlock, byte *outBlock) <span class="keyword">const</span>;
<a name="l00044"></a>00044         };
<a name="l00045"></a>00045 
<a name="l00046"></a>00046 <span class="keyword">public</span>:
<a name="l00047"></a><a class="code" href="class_r_c2_1_1_encryption.html">00047</a>         <span class="keyword">class </span><a class="code" href="class_r_c2_1_1_encryption.html">Encryption</a> : <span class="keyword">public</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal</a>&lt;ENCRYPTION, Enc&gt;
<a name="l00048"></a>00048         {
<a name="l00049"></a>00049         <span class="keyword">public</span>:
<a name="l00050"></a>00050                 <a class="code" href="class_r_c2_1_1_encryption.html">Encryption</a>() {}
<a name="l00051"></a>00051                 <a class="code" href="class_r_c2_1_1_encryption.html">Encryption</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">size_t</span> keyLen=DEFAULT_KEYLENGTH)
<a name="l00052"></a>00052                         {SetKey(key, keyLen);}
<a name="l00053"></a>00053                 <a class="code" href="class_r_c2_1_1_encryption.html">Encryption</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">size_t</span> keyLen, <span class="keywordtype">int</span> effectiveKeyLen)
<a name="l00054"></a>00054                         {SetKey(key, keyLen, MakeParameters(<span class="stringliteral">&quot;EffectiveKeyLength&quot;</span>, effectiveKeyLen));}
<a name="l00055"></a>00055         };
<a name="l00056"></a>00056 
<a name="l00057"></a><a class="code" href="class_r_c2_1_1_decryption.html">00057</a>         <span class="keyword">class </span><a class="code" href="class_r_c2_1_1_decryption.html">Decryption</a> : <span class="keyword">public</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal</a>&lt;DECRYPTION, Dec&gt;
<a name="l00058"></a>00058         {
<a name="l00059"></a>00059         <span class="keyword">public</span>:
<a name="l00060"></a>00060                 <a class="code" href="class_r_c2_1_1_decryption.html">Decryption</a>() {}
<a name="l00061"></a>00061                 <a class="code" href="class_r_c2_1_1_decryption.html">Decryption</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">size_t</span> keyLen=DEFAULT_KEYLENGTH)
<a name="l00062"></a>00062                         {SetKey(key, keyLen);}
<a name="l00063"></a>00063                 <a class="code" href="class_r_c2_1_1_decryption.html">Decryption</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">size_t</span> keyLen, <span class="keywordtype">int</span> effectiveKeyLen)
<a name="l00064"></a>00064                         {SetKey(key, keyLen, MakeParameters(<span class="stringliteral">&quot;EffectiveKeyLength&quot;</span>, effectiveKeyLen));}
<a name="l00065"></a>00065         };
<a name="l00066"></a>00066 };
<a name="l00067"></a>00067 
<a name="l00068"></a>00068 <span class="keyword">typedef</span> <a class="code" href="class_r_c2_1_1_encryption.html">RC2::Encryption</a> <a class="code" href="class_r_c2_1_1_encryption.html">RC2Encryption</a>;
<a name="l00069"></a>00069 <span class="keyword">typedef</span> <a class="code" href="class_r_c2_1_1_decryption.html">RC2::Decryption</a> <a class="code" href="class_r_c2_1_1_decryption.html">RC2Decryption</a>;
<a name="l00070"></a>00070 
<a name="l00071"></a>00071 NAMESPACE_END
<a name="l00072"></a>00072 
<a name="l00073"></a>00073 <span class="preprocessor">#endif</span>
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