mirror of git://gcc.gnu.org/git/gcc.git
118 lines
3.5 KiB
Java
118 lines
3.5 KiB
Java
/* TMMHParameterSpec.java --
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Copyright (C) 2002, 2006 Free Software Foundation, Inc.
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This file is a part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.javax.crypto.jce.spec;
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import gnu.java.security.prng.IRandom;
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import java.security.spec.AlgorithmParameterSpec;
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/**
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* This class represents the algorithm parameters for the Truncated
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* Multi-Modular Hash function for use with JCE-derived instances of
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* {@link gnu.javax.crypto.mac.TMMH16}.
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* <p>
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* This class is little more than a container for the key stream, tag length,
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* and prefix parameters for the TMMH algorithm.
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*/
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public class TMMHParameterSpec
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implements AlgorithmParameterSpec
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{
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/** The keystream. */
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protected IRandom keystream;
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/** The tag length. */
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protected Integer tagLength;
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/** The prefix. */
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protected byte[] prefix;
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/**
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* Create a new parameter specification.
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*
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* @param keystream The (PRNG) key stream.
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* @param tagLength The tag length.
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* @param prefix The prefix.
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*/
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public TMMHParameterSpec(IRandom keystream, Integer tagLength, byte[] prefix)
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{
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this.keystream = keystream;
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this.tagLength = tagLength;
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this.prefix = prefix;
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}
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/**
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* Create a new parameter specification with no prefix.
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*
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* @param keystream The (PRNG) key stream.
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* @param tagLength The tag length.
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*/
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public TMMHParameterSpec(IRandom keystream, Integer tagLength)
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{
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this(keystream, tagLength, null);
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}
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/**
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* Return the key stream this specification was initialized with.
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*
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* @return The key stream.
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*/
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public IRandom getKeystream()
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{
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return keystream;
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}
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/**
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* Return the tag length this specification was initialized with.
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*
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* @return The tag length.
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*/
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public Integer getTagLength()
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{
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return tagLength;
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}
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/**
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* Return the prefix, or <code>null</code> if no prefix was specified.
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*
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* @return The prefix.
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*/
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public byte[] getPrefix()
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{
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return prefix;
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}
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}
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