cn.hyperchain.sdk.crypto.cryptohash.Keccak256 Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of litesdk Show documentation

A Java client tool for Hyperchain

There is a newer version: 1.4.3

package cn.hyperchain.sdk.crypto.cryptohash;

/**
 * This class implements the Keccak-256 digest algorithm under the
 * {@link cn.hyperchain.sdk.crypto.cryptohash.Digest} API.
 *
 *  * ==========================(LICENSE BEGIN)============================
 *
 * Copyright (c) 2007-2010  Projet RNRT SAPHIR
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * ===========================(LICENSE END)=============================
 * 
 *
 * @author Thomas Pornin <[email protected]>
 * @version $Revision: 189 $
 */

public class Keccak256 extends KeccakCore {

    /**
     * Create the engine.
     */
    public Keccak256() {
    }

    /**
     * @see cn.hyperchain.sdk.crypto.cryptohash.Digest
     */
    public Digest copy() {
        return copyState(new Keccak256());
    }

    /**
     * @see cn.hyperchain.sdk.crypto.cryptohash.Digest
     */
    public int getDigestLength() {
        return 32;
    }
}