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<?xml version="1.0" encoding="US-ASCII"?> <!DOCTYPE html PUBLIC "-//gnu.org///DTD XHTML 1.1 plus Target 1.0//EN" "../../resources/xhtml11-target10.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><title>FeedbackCipher (cryptix JavaDoc)</title><script src="../../resources/gjdoc.js" type="text/javascript"><!-- this comment required for konqueror 3.2.2 --></script><meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"/><meta name="generator" content="GNU Gjdoc Standard Doclet"/><meta name="keywords" content="xjava.security.FeedbackCipher class"/><meta name="keywords" content="setInitializationVector()"/><meta name="keywords" content="getInitializationVector()"/><meta name="keywords" content="getInitializationVectorLength()"/><link rel="stylesheet" type="text/css" href="../../resources/gjdochtml-clean-layout.css" title="GNU Clean"/><link rel="stylesheet" type="text/css" href="../../resources/gjdochtml-clean-color1.css" title="GNU Clean"/></head><body class="content class" onload="if(parent.contentPageLoaded)parent.contentPageLoaded(document.title)"><table class="navbar div top"><tr><td class="navbar div top"><div class="navbar div top"><span class="navbar item enabled"><a href="../../overview-summary.html">Overview</a></span> <span class="navbar item enabled"><a href="package-summary.html">Package</a></span> <span class="navbar item enabled"><a href="tree.html">Tree</a></span> <span class="navbar item enabled"><a href="../../alphaindex.html">Index</a></span> <span class="navbar item enabled"><a href="../../deprecated.html">Deprecated</a></span> <span class="navbar item enabled"><a href="../../about.html">About</a></span></div></td></tr><tr><td class="navi"><a href="../../xjava/security/ExtendedKeyGenerator.html">Prev Class</a> | <a href="../../xjava/security/GeneralSecurityException.html">Next Class</a></td><td class="navi"><a href="../../index.html" title="Show in a frameset" target="_top">Frames</a> | <a href="FeedbackCipher.html" title="Show without frames" target="_top">No Frames</a> </td></tr><tr><td class="navi">Summary: Nested | Field | <a href="#summary-methods">Method</a> | Constr</td><td class="navi">Detail: Nested | Field | <a href="#detail-methods">Method</a> | Constr</td></tr></table><div class="class title outer"><h3 class="class title-package">xjava.security</h3><h1 class="class title-class">Interface FeedbackCipher</h1></div><dl class="class knownimplementing"><dt class="header"><b>Known Implementing Classes:</b></dt><dd class="item"><a href="../../cryptix/provider/mode/CBC.html" title="Class in cryptix.provider.mode">CBC</a>, <a href="../../cryptix/provider/mode/CFB.html" title="Class in cryptix.provider.mode">CFB</a>, <a href="../../cryptix/provider/mode/CFB_PGP.html" title="Class in cryptix.provider.mode">CFB_PGP</a>, <a href="../../cryptix/provider/mode/FeedbackMode.html" title="Class in cryptix.provider.mode">FeedbackMode</a>, <a href="../../cryptix/provider/mode/OFB.html" title="Class in cryptix.provider.mode">OFB</a>, <a href="../../cryptix/provider/mode/PCBC.html" title="Class in cryptix.provider.mode">PCBC</a></dd></dl><hr/><div class="class synopsis outer"><div class="class synopsis declaration"><code>public interface <b class="class synopsis name">FeedbackCipher</b></code></div></div><hr/><div class="class description"> An interface implemented by algorithms that use feedback. Examples include block ciphers in <code>CBC</code>, <code>CFB</code>, or <code>OFB</code> mode. <p/> This interface is used to set or get the initialization vector, which is the data first used as feedback. <p/> Note that initialization vectors are not secret, and should not be used for data (such as cipher keys) where secrecy is required. </div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div><a name="summary-methods" id="summary-methods"/><dl class="table container"><dd><table class="class summary" border="1" width="100%"><tr class="table header"><td colspan="2"><h2 class="table header">Method Summary</h2></td></tr><tr><td class="left" valign="top"><code class="synopsis"> byte[]</code></td><td class="right"><dl class="list"><dt class="synopsis"><code><a href="#getInitializationVector()">getInitializationVector</a>()</code></dt><dd class="description"> Gets the initialization vector for this object.</dd></dl></td></tr><tr><td class="left" valign="top"><code class="synopsis"> int</code></td><td class="right"><dl class="list"><dt class="synopsis"><code><a href="#getInitializationVectorLength()">getInitializationVectorLength</a>()</code></dt><dd class="description"> Returns the size of the initialization vector expected by <code>setInitializationVector</code>.</dd></dl></td></tr><tr><td class="left" valign="top"><code class="synopsis"> void</code></td><td class="right"><dl class="list"><dt class="synopsis"><code><a href="#setInitializationVector(iv[])">setInitializationVector</a>(iv[] )</code></dt><dd class="description"> Sets the initialization vector for this object.</dd></dl></td></tr></table></dd></dl><a name="detail-methods" id="detail-methods"/><h2 class="section header">Method Details</h2><div class="section"><a name="getInitializationVector()" id="getInitializationVector()"/><div class="member detail outer"><h3 class="member detail name">getInitializationVector</h3><pre class="member detail synopsis">public byte[] getInitializationVector()</pre><blockquote class="member detail name"><div class="member detail description"> Gets the initialization vector for this object. This may be called on a cipher implementing FeedbackCipher. It will return <code>null</code> if the initialization vector has not been set. </div><div class="member detail return list"><dl><dt class="member detail return header"><b>Returns:</b></dt><dd class="member detail return item">the initialization vector for this cipher object.</dd></dl></div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div></blockquote></div><hr/><a name="getInitializationVectorLength()" id="getInitializationVectorLength()"/><div class="member detail outer"><h3 class="member detail name">getInitializationVectorLength</h3><pre class="member detail synopsis">public int getInitializationVectorLength()</pre><blockquote class="member detail name"><div class="member detail description"> Returns the size of the initialization vector expected by <code>setInitializationVector</code>. </div><div class="member detail return list"><dl><dt class="member detail return header"><b>Returns:</b></dt><dd class="member detail return item">the required size of the argument to <code>setInitializationVector</code>.</dd></dl></div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div></blockquote></div><hr/><a name="setInitializationVector(iv[])" id="setInitializationVector(iv[])"/><div class="member detail outer"><h3 class="member detail name">setInitializationVector</h3><pre class="member detail synopsis">public void setInitializationVector(iv[] )</pre><blockquote class="member detail name"><div class="member detail description"> Sets the initialization vector for this object. Note that FeedbackCiphers will usually default to a randomly generated vector if none is provided. <p/>This method may only be called on an uninitialized cipher (one in the <code>UNINITIALIZED</code> state) that implements FeedbackCipher. </div><div class="parameter"><dl><dt class="header"><b>Parameters:</b></dt></dl></div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div><div class="taglet"></div></blockquote></div></div><p class="navbar bottom spacer"> </p><table class="navbar div bottom"><tr><td><div class="navbar div top"><span class="navbar item enabled"><a href="../../overview-summary.html">Overview</a></span> <span class="navbar item enabled"><a href="package-summary.html">Package</a></span> <span class="navbar item enabled"><a href="tree.html">Tree</a></span> <span class="navbar item enabled"><a href="../../alphaindex.html">Index</a></span> <span class="navbar item enabled"><a href="../../deprecated.html">Deprecated</a></span> <span class="navbar item enabled"><a href="../../about.html">About</a></span></div></td></tr></table></body></html>