<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en_US" lang="en_US"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qcryptographichash.cpp --> <title>Qt 4.8: QCryptographicHash Class Reference</title> <link rel="stylesheet" type="text/css" href="style/style.css" /> <script src="scripts/jquery.js" type="text/javascript"></script> <script src="scripts/functions.js" type="text/javascript"></script> <link rel="stylesheet" type="text/css" href="style/superfish.css" /> <link rel="stylesheet" type="text/css" href="style/narrow.css" /> <!--[if IE]> <meta name="MSSmartTagsPreventParsing" content="true"> <meta http-equiv="imagetoolbar" content="no"> <![endif]--> <!--[if lt IE 7]> <link rel="stylesheet" type="text/css" href="style/style_ie6.css"> <![endif]--> <!--[if IE 7]> <link rel="stylesheet" type="text/css" href="style/style_ie7.css"> <![endif]--> <!--[if IE 8]> <link rel="stylesheet" type="text/css" href="style/style_ie8.css"> <![endif]--> <script src="scripts/superfish.js" type="text/javascript"></script> <script src="scripts/narrow.js" type="text/javascript"></script> </head> <body class="" onload="CheckEmptyAndLoadList();"> <div class="header" id="qtdocheader"> <div class="content"> <div id="nav-logo"> <a href="index.html">Home</a></div> <a href="index.html" class="qtref"><span>Qt Reference Documentation</span></a> <div id="narrowsearch"></div> <div id="nav-topright"> <ul> <li class="nav-topright-home"><a href="http://qt.digia.com/">Qt HOME</a></li> <li class="nav-topright-dev"><a href="http://qt-project.org/">DEV</a></li> <li class="nav-topright-doc nav-topright-doc-active"><a href="http://qt-project.org/doc/"> DOC</a></li> <li class="nav-topright-blog"><a href="http://blog.qt.digia.com/">BLOG</a></li> </ul> </div> <div id="shortCut"> <ul> <li class="shortCut-topleft-inactive"><span><a href="index.html">Qt 4.8</a></span></li> <li class="shortCut-topleft-active"><a href="http://qt-project.org/doc/">ALL VERSIONS </a></li> </ul> </div> <ul class="sf-menu" id="narrowmenu"> <li><a href="#">API Lookup</a> <ul> <li><a href="classes.html">Class index</a></li> <li><a href="functions.html">Function index</a></li> <li><a href="modules.html">Modules</a></li> <li><a href="namespaces.html">Namespaces</a></li> <li><a href="qtglobal.html">Global Declarations</a></li> <li><a href="qdeclarativeelements.html">QML elements</a></li> </ul> </li> <li><a href="#">Qt Topics</a> <ul> <li><a href="qt-basic-concepts.html">Programming with Qt</a></li> <li><a href="qtquick.html">Device UIs & Qt Quick</a></li> <li><a href="qt-gui-concepts.html">UI Design with Qt</a></li> <li><a href="supported-platforms.html">Supported Platforms</a></li> <li><a href="technology-apis.html">Qt and Key Technologies</a></li> <li><a href="best-practices.html">How-To's and Best Practices</a></li> </ul> </li> <li><a href="#">Examples</a> <ul> <li><a href="all-examples.html">Examples</a></li> <li><a href="tutorials.html">Tutorials</a></li> <li><a href="demos.html">Demos</a></li> <li><a href="qdeclarativeexamples.html">QML Examples</a></li> </ul> </li> </ul> </div> </div> <div class="wrapper"> <div class="hd"> <span></span> </div> <div class="bd group"> <div class="sidebar"> <div class="searchlabel"> Search index:</div> <div class="search" id="sidebarsearch"> <form id="qtdocsearch" action="" onsubmit="return false;"> <fieldset> <input type="text" name="searchstring" id="pageType" value="" /> <div id="resultdialog"> <a href="#" id="resultclose">Close</a> <p id="resultlinks" class="all"><a href="#" id="showallresults">All</a> | <a href="#" id="showapiresults">API</a> | <a href="#" id="showarticleresults">Articles</a> | <a href="#" id="showexampleresults">Examples</a></p> <p id="searchcount" class="all"><span id="resultcount"></span><span id="apicount"></span><span id="articlecount"></span><span id="examplecount"></span> results:</p> <ul id="resultlist" class="all"> </ul> </div> </fieldset> </form> </div> <div class="box first bottombar" id="lookup"> <h2 title="API Lookup"><span></span> API Lookup</h2> <div id="list001" class="list"> <ul id="ul001" > <li class="defaultLink"><a href="classes.html">Class index</a></li> <li class="defaultLink"><a href="functions.html">Function index</a></li> <li class="defaultLink"><a href="modules.html">Modules</a></li> <li class="defaultLink"><a href="namespaces.html">Namespaces</a></li> <li class="defaultLink"><a href="qtglobal.html">Global Declarations</a></li> <li class="defaultLink"><a href="qdeclarativeelements.html">QML elements</a></li> </ul> </div> </div> <div class="box bottombar" id="topics"> <h2 title="Qt Topics"><span></span> Qt Topics</h2> <div id="list002" class="list"> <ul id="ul002" > <li class="defaultLink"><a href="qt-basic-concepts.html">Programming with Qt</a></li> <li class="defaultLink"><a href="qtquick.html">Device UIs & Qt Quick</a></li> <li class="defaultLink"><a href="qt-gui-concepts.html">UI Design with Qt</a></li> <li class="defaultLink"><a href="supported-platforms.html">Supported Platforms</a></li> <li class="defaultLink"><a href="technology-apis.html">Qt and Key Technologies</a></li> <li class="defaultLink"><a href="best-practices.html">How-To's and Best Practices</a></li> </ul> </div> </div> <div class="box" id="examples"> <h2 title="Examples"><span></span> Examples</h2> <div id="list003" class="list"> <ul id="ul003"> <li class="defaultLink"><a href="all-examples.html">Examples</a></li> <li class="defaultLink"><a href="tutorials.html">Tutorials</a></li> <li class="defaultLink"><a href="demos.html">Demos</a></li> <li class="defaultLink"><a href="qdeclarativeexamples.html">QML Examples</a></li> </ul> </div> </div> </div> <div class="wrap"> <div class="toolbar"> <div class="breadcrumb toolblock"> <ul> <li class="first"><a href="index.html">Home</a></li> <!-- Breadcrumbs go here --> <li><a href="modules.html">Modules</a></li> <li><a href="qtcore.html">QtCore</a></li> <li>QCryptographicHash</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-types">Public Types</a></li> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#static-public-members">Static Public Members</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <h1 class="title">QCryptographicHash Class Reference</h1> <!-- $$$QCryptographicHash-brief --> <p>The QCryptographicHash class provides a way to generate cryptographic hashes. <a href="#details">More...</a></p> <!-- @@@QCryptographicHash --> <pre class="cpp"> <span class="preprocessor">#include <QCryptographicHash></span></pre><p><b>Note:</b> All functions in this class are <a href="threads-reentrancy.html#reentrant">reentrant</a>.</p> <p>This class was introduced in Qt 4.3.</p> <ul> <li><a href="qcryptographichash-members.html">List of all members, including inherited members</a></li> </ul> <a name="public-types"></a> <h2>Public Types</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qcryptographichash.html#Algorithm-enum">Algorithm</a></b> { Md4, Md5, Sha1 }</td></tr> </table> <a name="public-functions"></a> <h2>Public Functions</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qcryptographichash.html#QCryptographicHash">QCryptographicHash</a></b> ( Algorithm <i>method</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qcryptographichash.html#dtor.QCryptographicHash">~QCryptographicHash</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcryptographichash.html#addData">addData</a></b> ( const char * <i>data</i>, int <i>length</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcryptographichash.html#addData-2">addData</a></b> ( const QByteArray & <i>data</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcryptographichash.html#reset">reset</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QByteArray </td><td class="memItemRight bottomAlign"><b><a href="qcryptographichash.html#result">result</a></b> () const</td></tr> </table> <a name="static-public-members"></a> <h2>Static Public Members</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> QByteArray </td><td class="memItemRight bottomAlign"><b><a href="qcryptographichash.html#hash">hash</a></b> ( const QByteArray & <i>data</i>, Algorithm <i>method</i> )</td></tr> </table> <a name="details"></a> <!-- $$$QCryptographicHash-description --> <div class="descr"> <h2>Detailed Description</h2> <p>The QCryptographicHash class provides a way to generate cryptographic hashes.</p> <p>QCryptographicHash can be used to generate cryptographic hashes of binary or text data.</p> <p>Currently MD4, MD5, and SHA-1 are supported.</p> </div> <!-- @@@QCryptographicHash --> <div class="types"> <h2>Member Type Documentation</h2> <!-- $$$Algorithm$$$Md4$$$Md5$$$Sha1 --> <h3 class="fn"><a name="Algorithm-enum"></a>enum QCryptographicHash::<span class="name">Algorithm</span></h3> <table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr> <tr><td class="topAlign"><tt>QCryptographicHash::Md4</tt></td><td class="topAlign"><tt>0</tt></td><td class="topAlign">Generate an MD4 hash sum</td></tr> <tr><td class="topAlign"><tt>QCryptographicHash::Md5</tt></td><td class="topAlign"><tt>1</tt></td><td class="topAlign">Generate an MD5 hash sum</td></tr> <tr><td class="topAlign"><tt>QCryptographicHash::Sha1</tt></td><td class="topAlign"><tt>2</tt></td><td class="topAlign">Generate an SHA1 hash sum</td></tr> </table> <!-- @@@Algorithm --> </div> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QCryptographicHash[overload1]$$$QCryptographicHashAlgorithm --> <h3 class="fn"><a name="QCryptographicHash"></a>QCryptographicHash::<span class="name">QCryptographicHash</span> ( <span class="type"><a href="qcryptographichash.html#Algorithm-enum">Algorithm</a></span> <i>method</i> )</h3> <p>Constructs an object that can be used to create a cryptographic hash from data using <i>method</i>.</p> <!-- @@@QCryptographicHash --> <!-- $$$~QCryptographicHash[overload1]$$$~QCryptographicHash --> <h3 class="fn"><a name="dtor.QCryptographicHash"></a>QCryptographicHash::<span class="name">~QCryptographicHash</span> ()</h3> <p>Destroys the object.</p> <!-- @@@~QCryptographicHash --> <!-- $$$addData[overload1]$$$addDataconstchar*int --> <h3 class="fn"><a name="addData"></a><span class="type">void</span> QCryptographicHash::<span class="name">addData</span> ( const <span class="type">char</span> * <i>data</i>, <span class="type">int</span> <i>length</i> )</h3> <p>Adds the first <i>length</i> chars of <i>data</i> to the cryptographic hash.</p> <!-- @@@addData --> <!-- $$$addData$$$addDataconstQByteArray& --> <h3 class="fn"><a name="addData-2"></a><span class="type">void</span> QCryptographicHash::<span class="name">addData</span> ( const <span class="type"><a href="qbytearray.html">QByteArray</a></span> & <i>data</i> )</h3> <p>This function overloads <a href="qcryptographichash.html#addData">addData</a>().</p> <!-- @@@addData --> <!-- $$$hash[overload1]$$$hashconstQByteArray&Algorithm --> <h3 class="fn"><a name="hash"></a><span class="type"><a href="qbytearray.html">QByteArray</a></span> QCryptographicHash::<span class="name">hash</span> ( const <span class="type"><a href="qbytearray.html">QByteArray</a></span> & <i>data</i>, <span class="type"><a href="qcryptographichash.html#Algorithm-enum">Algorithm</a></span> <i>method</i> )<tt> [static]</tt></h3> <p>Returns the hash of <i>data</i> using <i>method</i>.</p> <!-- @@@hash --> <!-- $$$reset[overload1]$$$reset --> <h3 class="fn"><a name="reset"></a><span class="type">void</span> QCryptographicHash::<span class="name">reset</span> ()</h3> <p>Resets the object.</p> <!-- @@@reset --> <!-- $$$result[overload1]$$$result --> <h3 class="fn"><a name="result"></a><span class="type"><a href="qbytearray.html">QByteArray</a></span> QCryptographicHash::<span class="name">result</span> () const</h3> <p>Returns the final hash value.</p> <p><b>See also </b><a href="qbytearray.html#toHex">QByteArray::toHex</a>().</p> <!-- @@@result --> </div> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. Documentation contributions included herein are the copyrights of their respective owners.</p> <br /> <p> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.</p> <p> Documentation sources may be obtained from <a href="http://www.qt-project.org"> www.qt-project.org</a>.</p> <br /> <p> Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. <a title="Privacy Policy" href="http://en.gitorious.org/privacy_policy/">Privacy Policy</a></p> </div> <script src="scripts/functions.js" type="text/javascript"></script> </body> </html>