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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++: tea.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>tea.h</h1><a href="tea_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_TEA_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_TEA_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>00012 <span class="comment">//! _</span><a name="l00013"></a><a class="code" href="struct_t_e_a___info.html">00013</a> <span class="comment"></span>struct <a class="code" href="struct_t_e_a___info.html" title="_">TEA_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><8>, public <a class="code" href="class_fixed_key_length.html" title="to be inherited by keyed algorithms with fixed key length">FixedKeyLength</a><16>, public <a class="code" href="class_variable_rounds.html" title="to be inherited by ciphers with variable number of rounds">VariableRounds</a><32><a name="l00014"></a>00014 {<a name="l00015"></a><a class="code" href="struct_t_e_a___info.html#0667d038dd4d8fc432998c8c32d4f8e2">00015</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"TEA"</span>;}<a name="l00016"></a>00016 };<a name="l00017"></a>00017 <span class="comment"></span><a name="l00018"></a>00018 <span class="comment">/// <a href="http://www.weidai.com/scan-mirror/cs.html#TEA">TEA</a></span><a name="l00019"></a><a class="code" href="class_t_e_a.html">00019</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_t_e_a.html" title="TEA">TEA</a> : <span class="keyword">public</span> <a class="code" href="struct_t_e_a___info.html" title="_">TEA_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="l00020"></a>00020 {<a name="l00021"></a>00021 <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><TEA_Info><a name="l00022"></a>00022 {<a name="l00023"></a>00023 <span class="keyword">public</span>:<a name="l00024"></a>00024 <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="l00025"></a>00025 <a name="l00026"></a>00026 <span class="keyword">protected</span>:<a name="l00027"></a>00027 <a class="code" href="class_fixed_size_sec_block.html" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock<word32, 4></a> m_k;<a name="l00028"></a>00028 word32 m_limit;<a name="l00029"></a>00029 };<a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Enc : <span class="keyword">public</span> Base<a name="l00032"></a>00032 {<a name="l00033"></a>00033 <span class="keyword">public</span>:<a name="l00034"></a>00034 <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="l00035"></a>00035 };<a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Dec : <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">public</span>:<a name="l00044"></a><a class="code" href="class_t_e_a.html#e3f92f346b466d9a45a0a541b4ccd2a5">00044</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.html" title="interface for one direction (encryption or decryption) of a block cipher">Encryption</a>;<a name="l00045"></a><a class="code" href="class_t_e_a.html#37ea62a8ce66ee77ffa8c6afbe37d65e">00045</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.html" title="interface for one direction (encryption or decryption) of a block cipher">Decryption</a>;<a name="l00046"></a>00046 };<a name="l00047"></a>00047 <a name="l00048"></a><a class="code" href="tea_8h.html#085a07ef66bffe95af148697918a2ee8">00048</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher.html" title="interface for one direction (encryption or decryption) of a block cipher">TEA::Encryption</a> <a class="code" href="class_block_cipher.html" title="interface for one direction (encryption or decryption) of a block cipher">TEAEncryption</a>;<a name="l00049"></a><a class="code" href="tea_8h.html#bcf8517c3cf08e7de041d05dc56232ca">00049</a> <span class="keyword">typedef</span> <a class="code" href="class_block_cipher.html" title="interface for one direction (encryption or decryption) of a block cipher">TEA::Decryption</a> <a class="code" href="class_block_cipher.html" title="interface for one direction (encryption or decryption) of a block cipher">TEADecryption</a>;<a name="l00050"></a>00050 <span class="comment"></span><a name="l00051"></a>00051 <span class="comment">//! _</span><a name="l00052"></a><a class="code" href="struct_x_t_e_a___info.html">00052</a> <span class="comment"></span><span class="keyword">struct </span><a class="code" href="struct_x_t_e_a___info.html" title="_">XTEA_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_fixed_key_length.html" title="to be inherited by keyed algorithms with fixed key length">FixedKeyLength</a><16>, <span class="keyword">public</span> <a class="code" href="class_variable_rounds.html" title="to be inherited by ciphers with variable number of rounds">VariableRounds</a><32><a name="l00053"></a>00053 {<a name="l00054"></a><a class="code" href="struct_x_t_e_a___info.html#babb644a051fbcdd9d059be2ca2e784e">00054</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="struct_x_t_e_a___info.html#babb644a051fbcdd9d059be2ca2e784e">StaticAlgorithmName</a>() {<span class="keywordflow">return</span> <span class="stringliteral">"XTEA"</span>;}<a name="l00055"></a>00055 };<a name="l00056"></a>00056 <span class="comment"></span><a name="l00057"></a>00057 <span class="comment">/// <a href="http://www.weidai.com/scan-mirror/cs.html#TEA">XTEA</a></span><a name="l00058"></a><a class="code" href="class_x_t_e_a.html">00058</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_x_t_e_a.html" title="XTEA">XTEA</a> : <span class="keyword">public</span> <a class="code" href="struct_x_t_e_a___info.html" title="_">XTEA_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="l00059"></a>00059 {⌨️ 快捷键说明
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