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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++: rc2.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>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 "seckey.h"</span><a name="l00008"></a>00008 <span class="preprocessor">#include "secblock.h"</span><a name="l00009"></a>00009 <span class="preprocessor">#include "algparam.h"</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><8>, 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><16, 1, 128><a name="l00015"></a>00015 {<a name="l00016"></a><a class="code" href="struct_r_c2___info.html#8753fcb1ad498fd49e00ab7e0d15d909">00016</a> CRYPTOPP_CONSTANT(DEFAULT_EFFECTIVE_KEYLENGTH = 1024)<a name="l00017"></a><a class="code" href="struct_r_c2___info.html#1e0e0c1ec4bb0e6eec1198bc41ee36f5">00017</a> CRYPTOPP_CONSTANT(MAX_EFFECTIVE_KEYLENGTH = 1024)<a name="l00018"></a><a class="code" href="struct_r_c2___info.html#cf98e0474a322bc18e4835d97b38f466">00018</a> static const <span class="keywordtype">char</span> *<a class="code" href="class_s_h_a1.html#d3e70b0d3d76d17c55691f095d774983">StaticAlgorithmName</a>() {<span class="keywordflow">return</span> <span class="stringliteral">"RC2"</span>;}<a name="l00019"></a>00019 };<a name="l00020"></a>00020 <span class="comment"></span><a name="l00021"></a>00021 <span class="comment">/// <a href="http://www.weidai.com/scan-mirror/cs.html#RC2">RC2</a></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><RC2_Info><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> &params);<a name="l00028"></a>00028 <a name="l00029"></a>00029 <span class="keyword">protected</span>:<a name="l00030"></a>00030 <a class="code" href="class_fixed_size_sec_block.html" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock<word16, 64></a> K; <span class="comment">// expanded key table</span><a name="l00031"></a>00031 };<a name="l00032"></a>00032 <a name="l00033"></a>00033 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Enc : <span class="keyword">public</span> Base<a name="l00034"></a>00034 {<a name="l00035"></a>00035 <span class="keyword">public</span>:<a name="l00036"></a>00036 <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="l00037"></a>00037 };<a name="l00038"></a>00038 <a name="l00039"></a>00039 <span class="keyword">class </span>CRYPTOPP_NO_VTABLE Dec : <span class="keyword">public</span> Base<a name="l00040"></a>00040 {<a name="l00041"></a>00041 <span class="keyword">public</span>:<a name="l00042"></a>00042 <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="l00043"></a>00043 };<a name="l00044"></a>00044 <a name="l00045"></a>00045 <span class="keyword">public</span>:<a name="l00046"></a><a class="code" href="class_r_c2_1_1_encryption.html">00046</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><ENCRYPTION, Enc><a name="l00047"></a>00047 {<a name="l00048"></a>00048 <span class="keyword">public</span>:<a name="l00049"></a><a class="code" href="class_r_c2_1_1_encryption.html#f615444eb894cf6f84c85bf11ac177c6">00049</a> <a class="code" href="class_r_c2_1_1_encryption.html#f615444eb894cf6f84c85bf11ac177c6">Encryption</a>() {}<a name="l00050"></a><a class="code" href="class_r_c2_1_1_encryption.html#b4bcc77c8653ef78036a4749849c599d">00050</a> <a class="code" href="class_r_c2_1_1_encryption.html#f615444eb894cf6f84c85bf11ac177c6">Encryption</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">size_t</span> keyLen=<a class="code" href="class_variable_key_length.html#3788ee30b190bdc0c0e89d2721162614">DEFAULT_KEYLENGTH</a>)<a name="l00051"></a>00051 {SetKey(key, keyLen);}<a name="l00052"></a><a class="code" href="class_r_c2_1_1_encryption.html#b4a7d26aee9ffa9295542e2c6c91caf5">00052</a> <a class="code" href="class_r_c2_1_1_encryption.html#f615444eb894cf6f84c85bf11ac177c6">Encryption</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">size_t</span> keyLen, <span class="keywordtype">int</span> effectiveKeyLen)<a name="l00053"></a>00053 {SetKey(key, keyLen, MakeParameters(<span class="stringliteral">"EffectiveKeyLength"</span>, effectiveKeyLen));}<a name="l00054"></a>00054 };<a name="l00055"></a>00055 <a name="l00056"></a><a class="code" href="class_r_c2_1_1_decryption.html">00056</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><DECRYPTION, Dec><a name="l00057"></a>00057 {<a name="l00058"></a>00058 <span class="keyword">public</span>:<a name="l00059"></a><a class="code" href="class_r_c2_1_1_decryption.html#b342ba52a17816de28a15c242b641773">00059</a> <a class="code" href="class_r_c2_1_1_decryption.html#b342ba52a17816de28a15c242b641773">Decryption</a>() {}<a name="l00060"></a><a class="code" href="class_r_c2_1_1_decryption.html#80f435fdb9e88b8c4c25687580100dee">00060</a> <a class="code" href="class_r_c2_1_1_decryption.html#b342ba52a17816de28a15c242b641773">Decryption</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">size_t</span> keyLen=<a class="code" href="class_variable_key_length.html#3788ee30b190bdc0c0e89d2721162614">DEFAULT_KEYLENGTH</a>)<a name="l00061"></a>00061 {SetKey(key, keyLen);}<a name="l00062"></a><a class="code" href="class_r_c2_1_1_decryption.html#67ef0031afc6d6971db521ef9b576fc0">00062</a> <a class="code" href="class_r_c2_1_1_decryption.html#b342ba52a17816de28a15c242b641773">Decryption</a>(<span class="keyword">const</span> byte *key, <span class="keywordtype">size_t</span> keyLen, <span class="keywordtype">int</span> effectiveKeyLen)<a name="l00063"></a>00063 {SetKey(key, keyLen, MakeParameters(<span class="stringliteral">"EffectiveKeyLength"</span>, effectiveKeyLen));}<a name="l00064"></a>00064 };<a name="l00065"></a>00065 };<a name="l00066"></a>00066 <a name="l00067"></a><a class="code" href="rc2_8h.html#4841eb58cf9034b7a8d74f12923b4d75">00067</a> <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="l00068"></a><a class="code" href="rc2_8h.html#15f1275a01fdcdd4c4b23fa6bf79fb26">00068</a> <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="l00069"></a>00069 <a name="l00070"></a>00070 NAMESPACE_END<a name="l00071"></a>00071 <a name="l00072"></a>00072 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Fri Jun 1 11:11:23 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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