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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++: ttmac.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>ttmac.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// ttmac.h - written and placed in the public domain by Kevin Springle</span><a name="l00002"></a>00002 <a name="l00003"></a>00003 <span class="preprocessor">#ifndef CRYPTOPP_TTMAC_H</span><a name="l00004"></a>00004 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_TTMAC_H</span><a name="l00005"></a>00005 <span class="preprocessor"></span><a name="l00006"></a>00006 <span class="preprocessor">#include "seckey.h"</span><a name="l00007"></a>00007 <span class="preprocessor">#include "iterhash.h"</span><a name="l00008"></a>00008 <a name="l00009"></a>00009 NAMESPACE_BEGIN(CryptoPP)<a name="l00010"></a>00010 <a name="l00011"></a>00011 <span class="comment">//! _</span><a name="l00012"></a><a class="code" href="class_t_t_m_a_c___base.html">00012</a> <span class="comment"></span>class CRYPTOPP_NO_VTABLE <a class="code" href="class_t_t_m_a_c___base.html" title="_">TTMAC_Base</a> : public <a class="code" href="class_fixed_key_length.html" title="to be inherited by keyed algorithms with fixed key length">FixedKeyLength</a><20>, public <a class="code" href="class_iterated_hash.html" title="_">IteratedHash</a><word32, <a class="code" href="struct_enum_to_type.html">LittleEndian</a>, 64, <a class="code" href="class_message_authentication_code.html" title="interface for message authentication codes">MessageAuthenticationCode</a>><a name="l00013"></a>00013 {<a name="l00014"></a>00014 <span class="keyword">public</span>:<a name="l00015"></a><a class="code" href="class_t_t_m_a_c___base.html#d9abb62e08bdfba1e38a91eca40e3cb0">00015</a> <span class="keyword">static</span> std::string StaticAlgorithmName() {<span class="keywordflow">return</span> std::string(<span class="stringliteral">"Two-Track-MAC"</span>);}<a name="l00016"></a><a class="code" href="class_t_t_m_a_c___base.html#e82f65af091adcea740c399e31f6c17c">00016</a> CRYPTOPP_CONSTANT(DIGESTSIZE=20)<a name="l00017"></a>00017 <a name="l00018"></a><a class="code" href="class_t_t_m_a_c___base.html#78f01cddf3a38e595c2868c2cacd23ac">00018</a> unsigned <span class="keywordtype">int</span> DigestSize()<span class="keyword"> const </span>{<span class="keywordflow">return</span> DIGESTSIZE;};<a name="l00019"></a>00019 <span class="keywordtype">void</span> UncheckedSetKey(<span class="keyword">const</span> byte *userKey, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> keylength, <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="l00020"></a>00020 <span class="keywordtype">void</span> TruncatedFinal(byte *mac, <span class="keywordtype">size_t</span> size);<a name="l00021"></a>00021 <a name="l00022"></a>00022 <span class="keyword">protected</span>:<a name="l00023"></a>00023 <span class="keyword">static</span> <span class="keywordtype">void</span> Transform (word32 *digest, <span class="keyword">const</span> word32 *X, <span class="keywordtype">bool</span> last);<a name="l00024"></a><a class="code" href="class_t_t_m_a_c___base.html#64183fdbc641b26ef684917f1ffe7cbf">00024</a> <span class="keywordtype">void</span> HashEndianCorrectedBlock(<span class="keyword">const</span> word32 *data) {Transform(m_digest, data, <span class="keyword">false</span>);}<a name="l00025"></a>00025 <span class="keywordtype">void</span> Init();<a name="l00026"></a><a class="code" href="class_t_t_m_a_c___base.html#5103ffe31e652128400bfd98e6d26cad">00026</a> word32* StateBuf() {<span class="keywordflow">return</span> m_digest;}<a name="l00027"></a>00027 <a name="l00028"></a><a class="code" href="class_t_t_m_a_c___base.html#8ab3de4f6093f8fb0c1266063f5ae157">00028</a> <a class="code" href="class_fixed_size_sec_block.html" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock<word32, 10></a> m_digest;<a name="l00029"></a><a class="code" href="class_t_t_m_a_c___base.html#683a6af755d347456a2043783d07d703">00029</a> <a class="code" href="class_fixed_size_sec_block.html" title="a SecBlock with fixed size, allocated statically">FixedSizeSecBlock<word32, 5></a> m_key;<a name="l00030"></a>00030 };<a name="l00031"></a>00031 <span class="comment"></span><a name="l00032"></a>00032 <span class="comment">//! <a href="http://www.weidai.com/scan-mirror/mac.html#TTMAC">Two-Track-MAC</a></span><a name="l00033"></a>00033 <span class="comment"></span><span class="comment">/*! 160 Bit MAC with 160 Bit Key */</span><a name="l00034"></a><a class="code" href="class_t_t_m_a_c.html">00034</a> DOCUMENTED_TYPEDEF(<a class="code" href="class_message_authentication_code_final.html" title="_">MessageAuthenticationCodeFinal<TTMAC_Base></a>, <a class="code" href="class_t_t_m_a_c.html" title="Two-Track-MAC">TTMAC</a>)<a name="l00035"></a>00035 <a name="l00036"></a>00036 NAMESPACE_END<a name="l00037"></a>00037 <a name="l00038"></a>00038 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Fri Jun 1 11:11:25 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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