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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Crypto++: twofish.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.3.2 --><div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Compound List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="namespacemembers.html">Namespace Members</a> | <a class="qindex" href="functions.html">Compound Members</a> | <a class="qindex" href="globals.html">File Members</a></div><h1>twofish.h</h1><a href="twofish_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="preprocessor">#ifndef CRYPTOPP_TWOFISH_H</span>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_TWOFISH_H</span>00003 <span class="preprocessor"></span><span class="comment"></span>00004 <span class="comment">/** \file</span>00005 <span class="comment">*/</span>00006 00007 <span class="preprocessor">#include "seckey.h"</span>00008 <span class="preprocessor">#include "secblock.h"</span>00009 00010 NAMESPACE_BEGIN(CryptoPP)00011 00012 <span class="keyword">struct </span>Twofish_Info : <span class="keyword">public</span> <a class="code" href="class_fixed_block_size.html">FixedBlockSize</a><16>, <span class="keyword">public</span> <a class="code" href="class_variable_key_length.html">VariableKeyLength</a><16, 0, 32>, <a class="code" href="class_fixed_rounds.html">FixedRounds</a><16>00013 {00014 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"Twofish"</span>;}00015 };00016 <span class="comment"></span>00017 <span class="comment">/// <a href="http://www.weidai.com/scan-mirror/cs.html#Twofish">Twofish</a></span><a name="l00018"></a><a class="code" href="class_twofish.html">00018</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_twofish.html">Twofish</a> : <span class="keyword">public</span> Twofish_Info, <span class="keyword">public</span> <a class="code" href="struct_block_cipher_documentation.html">BlockCipherDocumentation</a>00019 {00020 <span class="keyword">class </span>Base : <span class="keyword">public</span> BlockCipherBaseTemplate<Twofish_Info>00021 {00022 <span class="keyword">public</span>:00023 <span class="keywordtype">void</span> UncheckedSetKey(<a class="code" href="cryptlib_8h.html#a11">CipherDir</a> direction, <span class="keyword">const</span> byte *userKey, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length);00024 00025 <span class="keyword">protected</span>:00026 <span class="keyword">static</span> word32 h0(word32 x, <span class="keyword">const</span> word32 *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> kLen);00027 <span class="keyword">static</span> word32 h(word32 x, <span class="keyword">const</span> word32 *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> kLen);00028 00029 <span class="keyword">static</span> <span class="keyword">const</span> byte q[2][256];00030 <span class="keyword">static</span> <span class="keyword">const</span> word32 mds[4][256];00031 00032 FixedSizeSecBlock<word32, 40> m_k;00033 FixedSizeSecBlock<word32[256], 4> m_s;00034 };00035 00036 <span class="keyword">class </span>Enc : <span class="keyword">public</span> Base00037 {00038 <span class="keyword">public</span>:00039 <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>;00040 };00041 00042 <span class="keyword">class </span>Dec : <span class="keyword">public</span> Base00043 {00044 <span class="keyword">public</span>:00045 <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>;00046 };00047 00048 <span class="keyword">public</span>:<a name="l00049"></a><a class="code" href="class_twofish.html#_twofishw0">00049</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_template.html">BlockCipherTemplate<ENCRYPTION, Enc></a> <a class="code" href="class_block_cipher_template.html">Encryption</a>;<a name="l00050"></a><a class="code" href="class_twofish.html#_twofishw1">00050</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_template.html">BlockCipherTemplate<DECRYPTION, Dec></a> <a class="code" href="class_block_cipher_template.html">Decryption</a>;00051 };00052 00053 <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_template.html">Twofish::Encryption</a> <a class="code" href="class_block_cipher_template.html">TwofishEncryption</a>;00054 <span class="keyword">typedef</span> <a class="code" href="class_block_cipher_template.html">Twofish::Decryption</a> <a class="code" href="class_block_cipher_template.html">TwofishDecryption</a>;00055 00056 NAMESPACE_END00057 00058 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="align: right;"><small>Generated on Tue Jul 8 23:34:27 2003 for Crypto++ by<a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border=0 > </a>1.3.2 </small></address></body></html>⌨️ 快捷键说明
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