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 span.virtual_style 22 { 23 font-size : 8pt; 24 color : white; 25 font-weight : bold; 26 background : #0a0; 27 border-left : solid 1px #0f0; 28 border-top : solid 1px #0f0; 29 border-right : solid 1px #060; 30 border-bottom : solid 1px #060; 31 padding-left : 2px; 32 padding-right : 2px; 33 } 34 span.protected_style 35 { 36 font-size : 8pt; 37 color : white; 38 font-weight : bold; 39 background : #444; 40 border-left : solid 1px #ccc; 41 border-top : solid 1px #ccc; 42 border-right : solid 1px #222; 43 border-bottom : solid 1px #222; 44 padding-left : 2px; 45 padding-right : 2px; 46 } 47 --></style> 48<title>nn::crypto::Sha256Context</title> 49 </head> 50 <body> 51<h1><CODE>nn::crypto::Sha256Context</CODE> Class</h1> 52<h2>Syntax</h2> 53 <div class="section"> 54 <pre class="definition">class Sha256Context : public <a href="../../../nn/crypto/ShaBlock512BitContext/Overview.html">nn::crypto::ShaBlock512BitContext</a></pre> 55 </div> 56<h2>Description</h2> 57 <div class="section"> 58<p>Context object for SHA-256 calculation.</p><!-- write here --></div> 59 <a name="function" id="function"> 60<h2>Member Functions</h2> 61 <div class="section"> 62 <table class="members"> 63 <tr> 64 <td width="100"> </td> 65 <th> 66<a href="../../../nn/crypto/Sha256Context/Sha256Context.html">Sha256Context</a> 67 </th> 68<td>Creates a SHA-256 calculation context. No initialization is performed.</td> 69 </tr> 70 <tr> 71 <td width="100"> </td> 72 <th> 73<a href="../../../nn/crypto/Sha256Context/~Sha256Context.html">~Sha256Context</a> 74 </th> 75<td>Destroys a SHA-256 calculation context.</td> 76 </tr> 77 <tr> 78<td width="100"> <span class="virtual_style" title="virtual">V</span> 79 </td> 80 <th> 81<a href="../../../nn/crypto/Sha256Context/Initialize.html">Initialize</a> 82 </th> 83<td>Initializes a SHA-256 calculation context.</td> 84 </tr> 85 <tr> 86<td width="100"> <span class="virtual_style" title="virtual">V</span> 87 </td> 88 <th> 89<a href="../../../nn/crypto/Sha256Context/Finalize.html">Finalize</a> 90 </th> 91<td>Ends a SHA-256 calculation context.</td> 92 </tr> 93 <tr> 94<td width="100"> <span class="virtual_style" title="virtual">V</span> 95 </td> 96 <th> 97<a href="../../../nn/crypto/Sha256Context/Update.html">Update</a> 98 </th> 99<td>Updates a SHA-256 hash value using the given data.</td> 100 </tr> 101 <tr> 102<td width="100"> <span class="virtual_style" title="virtual">V</span> 103 </td> 104 <th> 105<a href="../../../nn/crypto/Sha256Context/GetHashLength.html">GetHashLength</a> 106 </th> 107<td>Gets the length of the SHA-256 hash.</td> 108 </tr> 109 <tr> 110<td width="100"> <span class="virtual_style" title="virtual">V</span> 111 </td> 112 <th> 113<a href="../../../nn/crypto/Sha256Context/GetHash.html">GetHash</a> 114 </th> 115<td>Gets the final result of calculating the SHA-256 hash.</td> 116 </tr> </table> 117 </div> 118 </a> 119<h2>Class Hierarchy</h2> 120 <div class="section"> 121<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> 122 </p> 123 </div> 124<h2>Revision History</h2> 125 <div class="section"> 126 <dl class="history"> 127 <dt>2010/01/07</dt> 128<dd>Initial version.<br /> 129 </dd> 130 </dl> 131 </div> 132 <hr><p>CONFIDENTIAL</p></body> 133</html> 134