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<?xml version="1.0" encoding="UTF-8"?>
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<!-- qcryptographichash.cpp -->
  <title>Qt 4.8: QCryptographicHash Class Reference</title>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#public-types">Public Types</a></li>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
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<h1 class="title">QCryptographicHash Class Reference</h1>
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<p>The QCryptographicHash class provides a way to generate cryptographic hashes. <a href="#details">More...</a></p>
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<pre class="cpp"> <span class="preprocessor">#include &lt;QCryptographicHash&gt;</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>
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<li><a href="qcryptographichash-members.html">List of all members, including inherited members</a></li>
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<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>
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<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 &amp; <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>
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<h2>Static Public Members</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> QByteArray </td><td class="memItemRight bottomAlign"><b><a href="qcryptographichash.html#hash">hash</a></b> ( const QByteArray &amp; <i>data</i>, Algorithm <i>method</i> )</td></tr>
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<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>
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<div class="types">
<h2>Member Type Documentation</h2>
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<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>
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<div class="func">
<h2>Member Function Documentation</h2>
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<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>
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<h3 class="fn"><a name="dtor.QCryptographicHash"></a>QCryptographicHash::<span class="name">~QCryptographicHash</span> ()</h3>
<p>Destroys the object.</p>
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<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>
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<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> &amp; <i>data</i> )</h3>
<p>This function overloads <a href="qcryptographichash.html#addData">addData</a>().</p>
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<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> &amp; <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>
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<h3 class="fn"><a name="reset"></a><span class="type">void</span> QCryptographicHash::<span class="name">reset</span> ()</h3>
<p>Resets the object.</p>
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<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 -->
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