1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2<html xml:lang="en-US" lang="en-US" xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <meta http-equiv="Content-Style-Type" content="text/css" /> 6 <link rel="stylesheet" href="../../../css/manpage.css" type="text/css" /> 7 <style type="text/css"><!-- 8 span.static_style 9 { 10 font-size : 8pt; 11 color : white; 12 font-weight : bold; 13 background : #44f; 14 border-left : solid 1px #aaf; 15 border-top : solid 1px #aaf; 16 border-right : solid 1px #00c; 17 border-bottom : solid 1px #00c; 18 padding-left : 2px; 19 padding-right : 2px; 20 } 21 22 span.virtual_style 23 { 24 font-size : 8pt; 25 color : white; 26 font-weight : bold; 27 background : #0a0; 28 border-left : solid 1px #0f0; 29 border-top : solid 1px #0f0; 30 border-right : solid 1px #060; 31 border-bottom : solid 1px #060; 32 padding-left : 2px; 33 padding-right : 2px; 34 } 35 36 span.protected_style 37 { 38 font-size : 8pt; 39 color : white; 40 font-weight : bold; 41 background : #444; 42 border-left : solid 1px #ccc; 43 border-top : solid 1px #ccc; 44 border-right : solid 1px #222; 45 border-bottom : solid 1px #222; 46 padding-left : 2px; 47 padding-right : 2px; 48 } 49 --></style> 50<title>nn::crypto::Sha256Context</title> 51 </head> 52 <body> 53<h1><CODE>nn::crypto::Sha256Context</CODE> Class</h1> 54<h2>Syntax</h2> 55 <div class="section"> 56 <pre class="definition">class Sha256Context : public <a href="../../../nn/crypto/ShaBlock512BitContext/Overview.html">nn::crypto::ShaBlock512BitContext</a></pre> 57 </div> 58<h2>Description</h2> 59 <div class="section"> 60<p>Context object for SHA-256 calculation.</p><!-- write here --></div> 61 <a name="function" id="function"> 62<h2>Member Functions</h2> 63 <div class="section"> 64 <table class="members"> 65 <tr> 66 <td width="100"> </td> 67 <th> 68<a href="../../../nn/crypto/Sha256Context/Sha256Context.html">Sha256Context</a> 69 </th> 70<td>Creates a SHA-256 calculation context. No initialization is performed.</td> 71 </tr> 72 <tr> 73 <td width="100"> </td> 74 <th> 75<a href="../../../nn/crypto/Sha256Context/~Sha256Context.html">~Sha256Context</a> 76 </th> 77<td>Destroys a SHA-256 calculation context.</td> 78 </tr> 79 <tr> 80<td width="100"> <span class="virtual_style" title="virtual">V</span> 81 </td> 82 <th> 83<a href="../../../nn/crypto/Sha256Context/Initialize.html">Initialize</a> 84 </th> 85<td>Initializes a SHA-256 calculation context.</td> 86 </tr> 87 <tr> 88<td width="100"> <span class="virtual_style" title="virtual">V</span> 89 </td> 90 <th> 91<a href="../../../nn/crypto/Sha256Context/Finalize.html">Finalize</a> 92 </th> 93<td>Ends a SHA-256 calculation context.</td> 94 </tr> 95 <tr> 96<td width="100"> <span class="virtual_style" title="virtual">V</span> 97 </td> 98 <th> 99<a href="../../../nn/crypto/Sha256Context/Update.html">Update</a> 100 </th> 101<td>Updates a SHA-256 hash value using the given data.</td> 102 </tr> 103 <tr> 104<td width="100"> <span class="virtual_style" title="virtual">V</span> 105 </td> 106 <th> 107<a href="../../../nn/crypto/Sha256Context/GetHashLength.html">GetHashLength</a> 108 </th> 109<td>Gets the length of the SHA-256 hash.</td> 110 </tr> 111 <tr> 112<td width="100"> <span class="virtual_style" title="virtual">V</span> 113 </td> 114 <th> 115<a href="../../../nn/crypto/Sha256Context/GetHash.html">GetHash</a> 116 </th> 117<td>Gets the final result of calculating the SHA-256 hash.</td> 118 </tr> </table> 119 </div> 120 </a> 121<h2>Class Hierarchy</h2> 122 <div class="section"> 123<p class="hierarchy"><a href="../../../nn/crypto/HashContextBase/Overview.html">nn::crypto::HashContextBase</a><br /> <a href="../../../nn/crypto/ShaBlock512BitContext/Overview.html">nn::crypto::ShaBlock512BitContext</a><br /> <b>nn::crypto::Sha256Context</b> 124 </p> 125 </div> 126<h2>Revision History</h2> 127 <div class="section"> 128 <dl class="history"> 129 <dt>2010/01/07</dt> 130<dd>Initial version.<br /> 131 </dd> 132 </dl> 133 </div> 134 <hr><p>CONFIDENTIAL</p></body> 135</html>