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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Class Poco::HMACEngine</title>
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<meta name="author" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="publisher" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/>
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<meta name="date" content="2009-11-24"/>
<meta name="generator" content="PocoDoc"/>
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<div class="header">
<h1 class="namespace"><a href="Poco.html" class="namespace">Poco</a></h1>
<h1 class="template">template < class Engine ></h1>
<h1 class="symbol">class HMACEngine</h1>
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<div class="body">
<p>
<b>Library:</b> Foundation<br />
<b>Package:</b> Crypt<br />
<b>Header:</b> Poco/HMACEngine.h</p>
<h2>Description</h2>
<div class="description">
<p>This class implementes the HMAC message authentication code algorithm, as specified in <a href="http://www.ietf.org/rfc/rfc2104.txt" target="_blank">RFC 2104</a>. The underlying <a href="Poco.DigestEngine.html" title="class Poco::DigestEngine">DigestEngine</a> (<a href="Poco.MD5Engine.html" title="class Poco::MD5Engine">MD5Engine</a>, <a href="Poco.SHA1Engine.html" title="class Poco::SHA1Engine">SHA1Engine</a>, etc.) must be given as template argument. Since the <a href="Poco.HMACEngine.html" title="class Poco::HMACEngine">HMACEngine</a> is a <a href="Poco.DigestEngine.html" title="class Poco::DigestEngine">DigestEngine</a>, it can be used with the DigestStream class to create a HMAC for a stream. </p>
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<h2>Inheritance</h2>
<p><b>Direct Base Classes: </b><a href="Poco.DigestEngine.html" title="class Poco::DigestEngine">DigestEngine</a></p>
<p><b>All Base Classes: </b><a href="Poco.DigestEngine.html" title="class Poco::DigestEngine">DigestEngine</a></p>
<h2>Member Summary</h2>
<p><b>Member Functions: </b><a href="Poco.HMACEngine.html#7275" title="Poco::HMACEngine::digest()">digest</a>, <a href="Poco.HMACEngine.html#7273" title="Poco::HMACEngine::digestLength()">digestLength</a>, <a href="Poco.HMACEngine.html#7276" title="Poco::HMACEngine::init()">init</a>, <a href="Poco.HMACEngine.html#7274" title="Poco::HMACEngine::reset()">reset</a>, <a href="Poco.HMACEngine.html#7279" title="Poco::HMACEngine::updateImpl()">updateImpl</a></p>
<p><b>Inherited Functions: </b><a href="Poco.DigestEngine.html#4731" title="Poco::DigestEngine::digest()">digest</a>, <a href="Poco.DigestEngine.html#4729" title="Poco::DigestEngine::digestLength()">digestLength</a>, <a href="Poco.DigestEngine.html#4732" title="Poco::DigestEngine::digestToHex()">digestToHex</a>, <a href="Poco.DigestEngine.html#4730" title="Poco::DigestEngine::reset()">reset</a>, <a href="Poco.DigestEngine.html#4722" title="Poco::DigestEngine::update()">update</a>, <a href="Poco.DigestEngine.html#4734" title="Poco::DigestEngine::updateImpl()">updateImpl</a></p>
<h2>Enumerations</h2>
<h3><i>Anonymous</i></h3>
<div class="description">
<p></p>
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<p class="decl"><a name="7265">BLOCK_SIZE</a> = Engine::BLOCK_SIZE</p>
<div class="description">
<p></p>
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<p class="decl"><a name="7266">DIGEST_SIZE</a> = Engine::DIGEST_SIZE</p>
<div class="description">
<p></p>
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<h2>Constructors</h2>
<h3><a name="7267">HMACEngine</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl"><a href="Poco.HMACEngine.html" title="class Poco::HMACEngine">HMACEngine</a>(<br /> const std::string & passphrase<br />);</p>
<div class="description">
<p></p>
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<h3><a name="7269">HMACEngine</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl"><a href="Poco.HMACEngine.html" title="class Poco::HMACEngine">HMACEngine</a>(<br /> const char * passphrase,<br /> unsigned length<br />);</p>
<div class="description">
<p></p>
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<h2>Destructor</h2>
<h3><a name="7272">~HMACEngine</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">~<a href="Poco.HMACEngine.html" title="class Poco::HMACEngine">HMACEngine</a>();</p>
<div class="description">
<p></p>
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<h2>Member Functions</h2>
<h3><a name="7275">digest</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">const <a href="Poco.DigestEngine.html#4719" title="Poco::DigestEngine::Digest">DigestEngine::Digest</a> & digest();</p>
<div class="description">
<p></p>
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<h3><a name="7273">digestLength</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">unsigned digestLength() const;</p>
<div class="description">
<p></p>
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<div class="description"><p><b>See also:</b> <a href="Poco.DigestEngine.html#4729" title="Poco::DigestEngine::digestLength()">Poco::DigestEngine::digestLength()</a></p></div>
<h3><a name="7274">reset</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void reset();</p>
<div class="description">
<p></p>
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<div class="description"><p><b>See also:</b> <a href="Poco.DigestEngine.html#4730" title="Poco::DigestEngine::reset()">Poco::DigestEngine::reset()</a></p></div>
<h3><a name="7276">init</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void init(<br /> const char * passphrase,<br /> unsigned length<br />);</p>
<div class="description">
<p></p>
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<h3><a name="7279">updateImpl</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void updateImpl(<br /> const void * data,<br /> unsigned length<br />);</p>
<div class="description">
<p></p>
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<div class="description"><p><b>See also:</b> <a href="Poco.DigestEngine.html#4734" title="Poco::DigestEngine::updateImpl()">Poco::DigestEngine::updateImpl()</a></p></div>
<p class="footer">POCO C++ Libraries 1.3.6-all<br />
Copyright © 2009, <a href="http://pocoproject.org/" target="_blank">Applied Informatics Software Engineering GmbH and Contributors</a></p>
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