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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++: panama.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>panama.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_PANAMA_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_PANAMA_H</span><a name="l00003"></a>00003 <span class="preprocessor"></span><a name="l00004"></a>00004 <span class="preprocessor">#include "<a class="code" href="strciphr_8h.html">strciphr.h</a>"</span><a name="l00005"></a>00005 <span class="preprocessor">#include "iterhash.h"</span><a name="l00006"></a>00006 <a name="l00007"></a>00007 NAMESPACE_BEGIN(CryptoPP)<a name="l00008"></a>00008 <a name="l00009"></a>00009 <span class="comment">/// base class, do not use directly</span><a name="l00010"></a>00010 <span class="comment"></span>template <class B><a name="l00011"></a><a class="code" href="class_panama.html">00011</a> class CRYPTOPP_NO_VTABLE <a class="code" href="class_panama.html" title="base class, do not use directly">Panama</a><a name="l00012"></a>00012 {<a name="l00013"></a>00013 <span class="keyword">public</span>:<a name="l00014"></a>00014 <span class="keywordtype">void</span> Reset();<a name="l00015"></a>00015 <span class="keywordtype">void</span> Iterate(<span class="keywordtype">size_t</span> count, <span class="keyword">const</span> word32 *p=NULL, word32 *z=NULL, <span class="keyword">const</span> word32 *y=NULL);<a name="l00016"></a>00016 <a name="l00017"></a>00017 <span class="keyword">protected</span>:<a name="l00018"></a><a class="code" href="class_panama.html#319fd8dc70b68fe385a517fd98b474ae">00018</a> <span class="keyword">typedef</span> word32 Stage[8];<a name="l00019"></a><a class="code" href="class_panama.html#0251e90ceebde954a2a1a0b2021259ce">00019</a> CRYPTOPP_CONSTANT(STAGES = 32)<a name="l00020"></a>00020 <a name="l00021"></a><a class="code" href="class_panama.html#a24602ddf6d8b7da9c5e77609af9e3ce">00021</a> <a class="code" href="class_fixed_size_aligned_sec_block.html">FixedSizeAlignedSecBlock</a><word32, 20 + 8*32> m_state;<a name="l00022"></a>00022 };<a name="l00023"></a>00023 <a name="l00024"></a>00024 namespace Weak {<span class="comment"></span><a name="l00025"></a>00025 <span class="comment">/// <a href="http://www.weidai.com/scan-mirror/md.html#Panama">Panama Hash</a></span><a name="l00026"></a>00026 <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> B = LittleEndian><a name="l00027"></a><a class="code" href="class_weak_1_1_panama_hash.html">00027</a> <span class="keyword">class </span><a class="code" href="class_weak_1_1_panama_hash.html" title="Panama Hash">PanamaHash</a> : <span class="keyword">protected</span> Panama<B>, <span class="keyword">public</span> <a class="code" href="class_algorithm_impl.html" title="_">AlgorithmImpl</a><IteratedHash<word32, NativeByteOrder, 32>, PanamaHash<B> ><a name="l00028"></a>00028 {<a name="l00029"></a>00029 <span class="keyword">public</span>:<a name="l00030"></a><a class="code" href="class_weak_1_1_panama_hash.html#ea79a03f6f7fd55f50759010045f3dfd">00030</a> CRYPTOPP_CONSTANT(DIGESTSIZE = 32)<a name="l00031"></a><a class="code" href="class_weak_1_1_panama_hash.html#ec0e4e240bf9434d987b64ce16b7e38d">00031</a> <a class="code" href="class_weak_1_1_panama_hash.html" title="Panama Hash">PanamaHash</a>() {<a class="code" href="class_panama.html#20f3428611261bcb3a179d0f59f55722">Panama<B>::Reset</a>();}<a name="l00032"></a><a class="code" href="class_weak_1_1_panama_hash.html#a4bfda6e5abcbea61bbcbce8e4d3f601">00032</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> DigestSize()<span class="keyword"> const </span>{<span class="keywordflow">return</span> DIGESTSIZE;}<a name="l00033"></a>00033 <span class="keywordtype">void</span> TruncatedFinal(byte *hash, <span class="keywordtype">size_t</span> size);<a name="l00034"></a><a class="code" href="class_weak_1_1_panama_hash.html#762af8dfea2678f445fcb4b6f22e3a2f">00034</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * StaticAlgorithmName() {<span class="keywordflow">return</span> B::ToEnum() == <a class="code" href="cryptlib_8h.html#aeb92d42f5a6e27b8ba19f18d69d142bf0c3bb6c718cc7ff0bffef4e8f178c57">BIG_ENDIAN_ORDER</a> ? <span class="stringliteral">"Panama-BE"</span> : <span class="stringliteral">"Panama-LE"</span>;}<a name="l00035"></a>00035 <a name="l00036"></a>00036 <span class="keyword">protected</span>:<a name="l00037"></a><a class="code" href="class_weak_1_1_panama_hash.html#771759ca770043342b1aa4e3b5048589">00037</a> <span class="keywordtype">void</span> Init() {<a class="code" href="class_panama.html#20f3428611261bcb3a179d0f59f55722">Panama<B>::Reset</a>();}<a name="l00038"></a><a class="code" href="class_weak_1_1_panama_hash.html#a573d0c317db82a86dc3870a674fa200">00038</a> <span class="keywordtype">void</span> HashEndianCorrectedBlock(<span class="keyword">const</span> word32 *data) {this->Iterate(1, data);} <span class="comment">// push</span><a name="l00039"></a>00039 <span class="keywordtype">size_t</span> HashMultipleBlocks(<span class="keyword">const</span> word32 *input, <span class="keywordtype">size_t</span> length);<a name="l00040"></a><a class="code" href="class_weak_1_1_panama_hash.html#1f2e31949ebb5fa96b79c2ed25cc7245">00040</a> word32* StateBuf() {<span class="keywordflow">return</span> NULL;}<a name="l00041"></a>00041 };<a name="l00042"></a>00042 }<a name="l00043"></a>00043 <span class="comment"></span><a name="l00044"></a>00044 <span class="comment">//! MAC construction using a hermetic hash function</span><a name="l00045"></a>00045 <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">class</span> T_Hash, <span class="keyword">class</span> T_Info = T_Hash><a name="l00046"></a><a class="code" href="class_hermetic_hash_function_m_a_c.html">00046</a> <span class="keyword">class </span><a class="code" href="class_hermetic_hash_function_m_a_c.html" title="MAC construction using a hermetic hash function.">HermeticHashFunctionMAC</a> : <span class="keyword">public</span> <a class="code" href="class_algorithm_impl.html" title="_">AlgorithmImpl</a><SimpleKeyingInterfaceImpl<TwoBases<MessageAuthenticationCode, VariableKeyLength<32, 0, INT_MAX> > >, T_Info><a name="l00047"></a>00047 {<a name="l00048"></a>00048 <span class="keyword">public</span>:<a name="l00049"></a><a class="code" href="class_hermetic_hash_function_m_a_c.html#a56b083b2c191ec36bc9bf56df9bc346">00049</a> <span class="keywordtype">void</span> <a class="code" href="class_hermetic_hash_function_m_a_c.html#a56b083b2c191ec36bc9bf56df9bc346">UncheckedSetKey</a>(<span class="keyword">const</span> byte *key, <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="l00050"></a>00050 {<a name="l00051"></a>00051 <a class="code" href="class_hermetic_hash_function_m_a_c.html#cc54bdc381eb96b75a8a30c99ef338dd">m_key</a>.<a class="code" href="class_sec_block.html#2cf5dc5e31c63eb927f935af6104f36a" title="set contents and size">Assign</a>(key, length);<a name="l00052"></a>00052 <a class="code" href="class_hermetic_hash_function_m_a_c.html#7d2ca6328f5d859a3dcec39240aa700f" title="discard the current state, and restart with a new message">Restart</a>();<a name="l00053"></a>00053 }<a name="l00054"></a>00054 <a name="l00055"></a><a class="code" href="class_hermetic_hash_function_m_a_c.html#7d2ca6328f5d859a3dcec39240aa700f">00055</a> <span class="keywordtype">void</span> <a class="code" href="class_hermetic_hash_function_m_a_c.html#7d2ca6328f5d859a3dcec39240aa700f" title="discard the current state, and restart with a new message">Restart</a>()<a name="l00056"></a>00056 {<a name="l00057"></a>00057 <a class="code" href="class_hermetic_hash_function_m_a_c.html#8dca76be12b470fb334a1367903e95bd">m_hash</a>.Restart();<a name="l00058"></a>00058 <a class="code" href="class_hermetic_hash_function_m_a_c.html#ba3c91a972c541ca6f52055ba3dc8bc7">m_keyed</a> = <span class="keyword">false</span>;<a name="l00059"></a>00059 }<a name="l00060"></a>00060 <a name="l00061"></a><a class="code" href="class_hermetic_hash_function_m_a_c.html#d724a2082e81c4174fdd877030ead35b">00061</a> <span class="keywordtype">void</span> <a class="code" href="class_hermetic_hash_function_m_a_c.html#d724a2082e81c4174fdd877030ead35b" title="process more input">Update</a>(<span class="keyword">const</span> byte *input, <span class="keywordtype">size_t</span> length)<a name="l00062"></a>00062 {<a name="l00063"></a>00063 <span class="keywordflow">if</span> (!<a class="code" href="class_hermetic_hash_function_m_a_c.html#ba3c91a972c541ca6f52055ba3dc8bc7">m_keyed</a>)<a name="l00064"></a>00064 <a class="code" href="class_hermetic_hash_function_m_a_c.html#c3a4c6ed165fbf4e322e49fcaa7d4677">KeyHash</a>();<a name="l00065"></a>00065 <a class="code" href="class_hermetic_hash_function_m_a_c.html#8dca76be12b470fb334a1367903e95bd">m_hash</a>.Update(input, length);⌨️ 快捷键说明
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