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77 lines
2.2 KiB
Java
77 lines
2.2 KiB
Java
// $Id: Skein256.java 253 2011-06-07 18:33:10Z tp $
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package fr.cryptohash;
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/**
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* <p>This class implements the Skein-256 digest algorithm under the
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* {@link Digest} API. In the Skein specification, that function is
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* called under the full name "Skein-512-256".</p>
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*
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* <pre>
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* ==========================(LICENSE BEGIN)============================
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*
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* Copyright (c) 2007-2010 Projet RNRT SAPHIR
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* ===========================(LICENSE END)=============================
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* </pre>
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*
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* @version $Revision: 253 $
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* @author Thomas Pornin <thomas.pornin@cryptolog.com>
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*/
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public class Skein256 extends SkeinBigCore {
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/**
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* Create the engine.
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*/
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public Skein256()
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{
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super();
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}
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/** The initial value for Skein-256. */
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private static final long[] initVal = {
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0xCCD044A12FDB3E13L, 0xE83590301A79A9EBL,
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0x55AEA0614F816E6FL, 0x2A2767A4AE9B94DBL,
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0xEC06025E74DD7683L, 0xE7A436CDC4746251L,
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0xC36FBAF9393AD185L, 0x3EEDBA1833EDFC13L
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};
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/** @see SkeinBigCore */
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long[] getInitVal()
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{
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return initVal;
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}
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/** @see Digest */
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public int getDigestLength()
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{
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return 32;
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}
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/** @see SkeinBigCore */
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SkeinBigCore dup()
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{
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return new Skein256();
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}
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}
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