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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: cast.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="classes.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul></div><h1>cast.h</h1><a href="cast_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_CAST_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_CAST_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 "seckey.h"</span><a name="l00008"></a>00008 <span class="preprocessor">#include "secblock.h"</span><a name="l00009"></a>00009 <a name="l00010"></a>00010 NAMESPACE_BEGIN(CryptoPP)<a name="l00011"></a>00011 <a name="l00012"></a><a class="code" href="class_c_a_s_t.html">00012</a> class <a class="code" href="class_c_a_s_t.html">CAST</a><a name="l00013"></a>00013 {<a name="l00014"></a>00014 <span class="keyword">protected</span>:<a name="l00015"></a><a class="code" href="class_c_a_s_t.html#855d8d38f5562708029fa12f23c3dd0c">00015</a> <span class="keyword">static</span> <span class="keyword">const</span> word32 S[8][256];<a name="l00016"></a>00016 };<a name="l00017"></a>00017 <span class="comment"></span><a name="l00018"></a>00018 <span class="comment">//! algorithm info</span><a name="l00019"></a><a class="code" href="struct_c_a_s_t128___info.html">00019</a> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_c_a_s_t128___info.html" title="algorithm info">CAST128_Info</a> : <span class="keyword">public</span> <a class="code" href="class_fixed_block_size.html" title="to be inherited by block ciphers with fixed block size">FixedBlockSize</a><8>, <span class="keyword">public</span> <a class="code" href="class_variable_key_length.html" title="support query of variable key length, template parameters are default, min, max,...">VariableKeyLength</a><16, 5, 16><a name="l00020"></a>00020 {<a name="l00021"></a><a class="code" href="struct_c_a_s_t128___info.html#ce3f7a10c636fb1f300cbba4b30da785">00021</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="struct_c_a_s_t128___info.html#ce3f7a10c636fb1f300cbba4b30da785">StaticAlgorithmName</a>() {<span class="keywordflow">return</span> <span class="stringliteral">"CAST-128"</span>;}<a name="l00022"></a>00022 };<a name="l00023"></a>00023 <span class="comment"></span><a name="l00024"></a>00024 <span class="comment">/// <a href="http://www.weidai.com/scan-mirror/cs.html#CAST-128">CAST-128</a></span><a name="l00025"></a><a class="code" href="class_c_a_s_t128.html">00025</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_c_a_s_t128.html" title="CAST-128">CAST128</a> : <span class="keyword">public</span> <a class="code" href="struct_c_a_s_t128___info.html" title="algorithm info">CAST128_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="l00026"></a>00026 {<a name="l00027"></a>00027 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Base : <span class="keyword">public</span> <a class="code" href="class_c_a_s_t.html">CAST</a>, <span class="keyword">public</span> <a class="code" href="class_block_cipher_impl.html">BlockCipherImpl</a><CAST128_Info><a name="l00028"></a>00028 {<a name="l00029"></a>00029 <span class="keyword">public</span>:<a name="l00030"></a>00030 <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> &params);<a name="l00031"></a>00031 <a name="l00032"></a>00032 <span class="keyword">protected</span>:<a name="l00033"></a>00033 <span class="keywordtype">bool</span> reduced;<a name="l00034"></a>00034 <a class="code" href="class_fixed_size_sec_block.html" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock<word32, 32></a> K;<a name="l00035"></a>00035 };<a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Enc : <span class="keyword">public</span> Base<a name="l00038"></a>00038 {<a name="l00039"></a>00039 <span class="keyword">public</span>:<a name="l00040"></a>00040 <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="l00041"></a>00041 };<a name="l00042"></a>00042 <a name="l00043"></a>00043 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Dec : <span class="keyword">public</span> Base<a name="l00044"></a>00044 {<a name="l00045"></a>00045 <span class="keyword">public</span>:<a name="l00046"></a>00046 <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="l00047"></a>00047 };<a name="l00048"></a>00048 <a name="l00049"></a>00049 <span class="keyword">public</span>:<a name="l00050"></a><a class="code" href="class_c_a_s_t128.html#8780036d77194b12aab575ecb252d1f3">00050</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal<ENCRYPTION, Enc></a> <a class="code" href="class_block_cipher_final.html">Encryption</a>;<a name="l00051"></a><a class="code" href="class_c_a_s_t128.html#4c224b2baaec79fdcfcb05ef5255120e">00051</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal<DECRYPTION, Dec></a> <a class="code" href="class_block_cipher_final.html">Decryption</a>;<a name="l00052"></a>00052 };<a name="l00053"></a>00053 <span class="comment"></span><a name="l00054"></a>00054 <span class="comment">//! algorithm info</span><a name="l00055"></a><a class="code" href="struct_c_a_s_t256___info.html">00055</a> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_c_a_s_t256___info.html" title="algorithm info">CAST256_Info</a> : <span class="keyword">public</span> <a class="code" href="class_fixed_block_size.html" title="to be inherited by block ciphers with fixed block size">FixedBlockSize</a><16>, <span class="keyword">public</span> <a class="code" href="class_variable_key_length.html" title="support query of variable key length, template parameters are default, min, max,...">VariableKeyLength</a><16, 16, 32><a name="l00056"></a>00056 {<a name="l00057"></a><a class="code" href="struct_c_a_s_t256___info.html#a47c3f897b7d323a9f23ae77604d409c">00057</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="struct_c_a_s_t256___info.html#a47c3f897b7d323a9f23ae77604d409c">StaticAlgorithmName</a>() {<span class="keywordflow">return</span> <span class="stringliteral">"CAST-256"</span>;}<a name="l00058"></a>00058 };<a name="l00059"></a>00059 <span class="comment"></span><a name="l00060"></a>00060 <span class="comment">//! <a href="http://www.weidai.com/scan-mirror/cs.html#CAST-256">CAST-256</a></span><a name="l00061"></a><a class="code" href="class_c_a_s_t256.html">00061</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_c_a_s_t256.html" title="CAST-256">CAST256</a> : <span class="keyword">public</span> <a class="code" href="struct_c_a_s_t256___info.html" title="algorithm info">CAST256_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="l00062"></a>00062 {<a name="l00063"></a>00063 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Base : <span class="keyword">public</span> <a class="code" href="class_c_a_s_t.html">CAST</a>, <span class="keyword">public</span> <a class="code" href="class_block_cipher_impl.html">BlockCipherImpl</a><CAST256_Info><a name="l00064"></a>00064 {<a name="l00065"></a>00065 <span class="keyword">public</span>:<a name="l00066"></a>00066 <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> &params);<a name="l00067"></a>00067 <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="l00068"></a>00068 <a name="l00069"></a>00069 <span class="keyword">protected</span>:<a name="l00070"></a>00070 <span class="keyword">static</span> <span class="keyword">const</span> word32 t_m[8][24];<a name="l00071"></a>00071 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> t_r[8][24];<a name="l00072"></a>00072 <a name="l00073"></a>00073 <span class="keyword">static</span> <span class="keywordtype">void</span> Omega(<span class="keywordtype">int</span> i, word32 kappa[8]);<a name="l00074"></a>00074 <a name="l00075"></a>00075 <a class="code" href="class_fixed_size_sec_block.html" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock<word32, 8*12></a> K;<a name="l00076"></a>00076 };<a name="l00077"></a>00077 <a name="l00078"></a>00078 <span class="keyword">public</span>:<a name="l00079"></a><a class="code" href="class_c_a_s_t256.html#0efde2e13cc19f4a704fe72f2d0bb4ad">00079</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal<ENCRYPTION, Base></a> <a class="code" href="class_block_cipher_final.html" title="_">Encryption</a>;<a name="l00080"></a><a class="code" href="class_c_a_s_t256.html#228efdeef3f2dcaee690e4db576f0364">00080</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">BlockCipherFinal<DECRYPTION, Base></a> <a class="code" href="class_block_cipher_final.html" title="_">Decryption</a>;<a name="l00081"></a>00081 };<a name="l00082"></a>00082 <a name="l00083"></a><a class="code" href="cast_8h.html#efe61e0f15998d7623967b1cc3bf4dbe">00083</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html">CAST128::Encryption</a> <a class="code" href="class_block_cipher_final.html">CAST128Encryption</a>;<a name="l00084"></a><a class="code" href="cast_8h.html#de9185c6d8f3d8a8bf624cecfe692ac5">00084</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html">CAST128::Decryption</a> <a class="code" href="class_block_cipher_final.html">CAST128Decryption</a>;<a name="l00085"></a>00085 <a name="l00086"></a><a class="code" href="cast_8h.html#c9b6037e4398137c85f53ad9f2664aba">00086</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">CAST256::Encryption</a> <a class="code" href="class_block_cipher_final.html" title="_">CAST256Encryption</a>;<a name="l00087"></a><a class="code" href="cast_8h.html#b89545123fd274eca5739fb2b63a070d">00087</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_final.html" title="_">CAST256::Decryption</a> <a class="code" href="class_block_cipher_final.html" title="_">CAST256Decryption</a>;<a name="l00088"></a>00088 <a name="l00089"></a>00089 NAMESPACE_END<a name="l00090"></a>00090 <a name="l00091"></a>00091 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Fri Jun 1 11:11:19 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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