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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++: sha.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&nbsp;Page</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class&nbsp;Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical&nbsp;List</a> | <a class="qindex" href="annotated.html">Compound&nbsp;List</a> | <a class="qindex" href="files.html">File&nbsp;List</a> | <a class="qindex" href="namespacemembers.html">Namespace&nbsp;Members</a> | <a class="qindex" href="functions.html">Compound&nbsp;Members</a> | <a class="qindex" href="globals.html">File&nbsp;Members</a></div><h1>sha.h</h1><div class="fragment"><pre>00001 <span class="preprocessor">#ifndef CRYPTOPP_SHA_H</span>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_SHA_H</span>00003 <span class="preprocessor"></span>00004 <span class="preprocessor">#include "iterhash.h"</span>00005 00006 NAMESPACE_BEGIN(CryptoPP)00007 00008 <span class="comment">/// &lt;a href="http://www.weidai.com/scan-mirror/md.html#SHA-1"&gt;SHA-1&lt;/a&gt;</span><a name="l00009"></a><a class="code" href="class_s_h_a.html">00009</a> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL SHA : <span class="keyword">public</span> IteratedHashWithStaticTransform&lt;word32, BigEndian, 64, SHA&gt;00010 {00011 <span class="keyword">public</span>:00012         <span class="keyword">enum</span> {DIGESTSIZE = 20};00013         SHA() : IteratedHashWithStaticTransform&lt;word32, BigEndian, 64, SHA&gt;(DIGESTSIZE) {Init();}00014         <span class="keyword">static</span> <span class="keywordtype">void</span> Transform(word32 *digest, <span class="keyword">const</span> word32 *data);00015         <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"SHA-1"</span>;}00016 00017 <span class="keyword">protected</span>:00018         <span class="keywordtype">void</span> Init();00019 };00020 00021 <span class="keyword">typedef</span> SHA <a class="code" href="class_s_h_a.html">SHA1</a>;00022 <span class="comment"></span>00023 <span class="comment">//! implements the SHA-256 standard</span><a name="l00024"></a><a class="code" href="class_s_h_a256.html">00024</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_s_h_a256.html">SHA256</a> : <span class="keyword">public</span> IteratedHashWithStaticTransform&lt;word32, BigEndian, 64, SHA256&gt;00025 {00026 <span class="keyword">public</span>:00027         <span class="keyword">enum</span> {DIGESTSIZE = 32};00028         <a class="code" href="class_s_h_a256.html">SHA256</a>() : IteratedHashWithStaticTransform&lt;word32, BigEndian, 64, SHA256&gt;(DIGESTSIZE) {Init();}00029         <span class="keyword">static</span> <span class="keywordtype">void</span> Transform(word32 *digest, <span class="keyword">const</span> word32 *data);00030         <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"SHA-256"</span>;}00031 00032 <span class="keyword">protected</span>:00033         <span class="keywordtype">void</span> Init();00034 00035         <span class="keyword">static</span> <span class="keyword">const</span> word32 K[64];00036 };00037 00038 <span class="preprocessor">#ifdef WORD64_AVAILABLE</span>00039 <span class="preprocessor"></span><span class="comment"></span>00040 <span class="comment">//! implements the SHA-512 standard</span><a name="l00041"></a><a class="code" href="class_s_h_a512.html">00041</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_s_h_a512.html">SHA512</a> : <span class="keyword">public</span> IteratedHashWithStaticTransform&lt;word64, BigEndian, 128, SHA512&gt;00042 {00043 <span class="keyword">public</span>:00044         <span class="keyword">enum</span> {DIGESTSIZE = 64};00045         <a class="code" href="class_s_h_a512.html">SHA512</a>() : IteratedHashWithStaticTransform&lt;word64, BigEndian, 128, SHA512&gt;(DIGESTSIZE) {Init();}00046         <span class="keyword">static</span> <span class="keywordtype">void</span> Transform(word64 *digest, <span class="keyword">const</span> word64 *data);00047         <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"SHA-512"</span>;}00048 00049 <span class="keyword">protected</span>:00050         <span class="keywordtype">void</span> Init();00051 00052         <span class="keyword">static</span> <span class="keyword">const</span> word64 K[80];00053 };00054 <span class="comment"></span>00055 <span class="comment">//! implements the SHA-384 standard</span><a name="l00056"></a><a class="code" href="class_s_h_a384.html">00056</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_s_h_a384.html">SHA384</a> : <span class="keyword">public</span> IteratedHashWithStaticTransform&lt;word64, BigEndian, 128, SHA512&gt;00057 {00058 <span class="keyword">public</span>:00059         <span class="keyword">enum</span> {DIGESTSIZE = 48};00060         <a class="code" href="class_s_h_a384.html">SHA384</a>() : IteratedHashWithStaticTransform&lt;word64, BigEndian, 128, SHA512&gt;(64) {Init();}<a name="l00061"></a><a class="code" href="class_s_h_a384.html#_s_h_a384a1">00061</a>         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_s_h_a384.html#_s_h_a384a1">DigestSize</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> DIGESTSIZE;};00062         <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * StaticAlgorithmName() {<span class="keywordflow">return</span> <span class="stringliteral">"SHA-384"</span>;}00063 00064 <span class="keyword">protected</span>:00065         <span class="keywordtype">void</span> Init();00066 };00067 00068 <span class="preprocessor">#endif</span>00069 <span class="preprocessor"></span>00070 NAMESPACE_END00071 00072 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="align: right;"><small>Generated on Tue Jul 8 23:34:25 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>
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