gnu.javax.crypto.jce.spec

Class TMMHParameterSpec

Implemented Interfaces:
AlgorithmParameterSpec

public class TMMHParameterSpec
extends Object
implements AlgorithmParameterSpec

This class represents the algorithm parameters for the Truncated Multi-Modular Hash function for use with JCE-derived instances of TMMH16.

This class is little more than a container for the key stream, tag length, and prefix parameters for the TMMH algorithm.

Field Summary

protected IRandom
keystream
The keystream.
protected byte[]
prefix
The prefix.
protected Integer
tagLength
The tag length.

Constructor Summary

TMMHParameterSpec(IRandom keystream, Integer tagLength)
Create a new parameter specification with no prefix.
TMMHParameterSpec(IRandom keystream, Integer tagLength, byte[] prefix)
Create a new parameter specification.

Method Summary

IRandom
getKeystream()
Return the key stream this specification was initialized with.
byte[]
getPrefix()
Return the prefix, or null if no prefix was specified.
Integer
getTagLength()
Return the tag length this specification was initialized with.

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

keystream

protected IRandom keystream
The keystream.

prefix

protected byte[] prefix
The prefix.

tagLength

protected Integer tagLength
The tag length.

Constructor Details

TMMHParameterSpec

public TMMHParameterSpec(IRandom keystream,
                         Integer tagLength)
Create a new parameter specification with no prefix.
Parameters:
keystream - The (PRNG) key stream.
tagLength - The tag length.

TMMHParameterSpec

public TMMHParameterSpec(IRandom keystream,
                         Integer tagLength,
                         byte[] prefix)
Create a new parameter specification.
Parameters:
keystream - The (PRNG) key stream.
tagLength - The tag length.
prefix - The prefix.

Method Details

getKeystream

public IRandom getKeystream()
Return the key stream this specification was initialized with.
Returns:
The key stream.

getPrefix

public byte[] getPrefix()
Return the prefix, or null if no prefix was specified.
Returns:
The prefix.

getTagLength

public Integer getTagLength()
Return the tag length this specification was initialized with.
Returns:
The tag length.

TMMHParameterSpec.java -- Copyright (C) 2002, 2006 Free Software Foundation, Inc. This file is a part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.