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><a href="../../../nn/Overview.html">nn</a>::<a href="../../../nn/crypto/Overview.html">crypto</a>::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"> <span class="virtual_style" title="virtual">V</span> 74 </td> 75 <th> 76<a href="../../../nn/crypto/Sha256Context/~Sha256Context.html">~Sha256Context</a> 77 </th> 78<td>Destroys a SHA-256 calculation context.</td> 79 </tr> 80 <tr> 81<td width="100"> <span class="virtual_style" title="virtual">V</span> 82 </td> 83 <th> 84<a href="../../../nn/crypto/Sha256Context/Initialize.html">Initialize</a> 85 </th> 86<td>Initializes a SHA-256 calculation context.</td> 87 </tr> 88 <tr> 89<td width="100"> <span class="virtual_style" title="virtual">V</span> 90 </td> 91 <th> 92<a href="../../../nn/crypto/Sha256Context/Finalize.html">Finalize</a> 93 </th> 94<td>Ends a SHA-256 calculation context.</td> 95 </tr> 96 <tr> 97<td width="100"> <span class="virtual_style" title="virtual">V</span> 98 </td> 99 <th> 100<a href="../../../nn/crypto/Sha256Context/Update.html">Update</a> 101 </th> 102<td>Updates a SHA-256 hash value using the given data.</td> 103 </tr> 104 <tr> 105<td width="100"> <span class="virtual_style" title="virtual">V</span> 106 </td> 107 <th> 108<a href="../../../nn/crypto/Sha256Context/GetHashSize.html">GetHashSize</a> 109 </th> 110<td>Gets the length of the SHA-256 hash.</td> 111 </tr> 112 <tr> 113<td width="100"> <span class="virtual_style" title="virtual">V</span> 114 </td> 115 <th> 116<a href="../../../nn/crypto/Sha256Context/GetHash.html">GetHash</a> 117 </th> 118<td>Gets the final result of calculating the SHA-256 hash.</td> 119 </tr> </table> 120 </div> 121 </a> 122<h2>Class Hierarchy</h2> 123 <div class="section"> 124<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> 125 </p> 126 </div> 127<h2>Revision History</h2> 128 <div class="section"> 129 <dl class="history"> 130 <dt>2010/01/07</dt> 131<dd>Initial version.<br /> 132 </dd> 133 </dl> 134 </div> 135 <hr><p>CONFIDENTIAL</p></body> 136</html>