desedekey.java

面向应用的智能安全代理平台和工具包是一个综合网络应用的安全共性需求而设计和实现的一个通用性的网络信息安全应用支撑平台

package au.net.aba.crypto.provider;

/*
 * $Id: DESedeKey.java,v 1.8 1998/10/05 05:46:45 dgh Exp $
 * $Author: dgh $
 *
 * Copyright (C) 1996-1998 Australian Business Access Pty Ltd.
 * All rights reserved.
 * 
 * Use, modification, copying and distribution of this software is subject the
 * terms and conditions of the ABA Public Licence. See the file
 * "PUBLIC_LICENCE" for additional information.
 *
 * If you have not received a copy of the Public Licence, you must destroy all
 * copies of this file immediately. 
 *
 * $Source: /aba/CVSROOT/jdk1.1/src/au.net.aba/crypto/provider/DESedeKey.java,v $
 * $Revision: 1.8 $
 * $Date: 1998/10/05 05:46:45 $
 * $State: Exp $
 */

import javax.crypto.SecretKey;
import javax.crypto.spec.DESedeKeySpec;

/**
 * a triple DES key.
 */
public class DESedeKey implements SecretKey
{
	public final static String ident = "$Id: DESedeKey.java,v 1.8 1998/10/05 05:46:45 dgh Exp $";

	private byte[]		key;

	public DESedeKey(
		byte[]	rawKey)
	{
		key = new byte[DESedeKeySpec.DES_EDE_KEY_LEN];
		System.arraycopy(rawKey, 0,
			key, 0, DESedeKeySpec.DES_EDE_KEY_LEN);
	}
	/**
	 * returns the algorithm for this key.
	 *
	 * @return the string "DESede".
	 */
	public String getAlgorithm()
	{
		return "DESede";
	}
	/**
	 * returns an encoded representation of this key.
	 *
	 * @return the key in raw byte format.
	 */
	public byte[] getEncoded()
	{
		byte[]	tmp;

		tmp = new byte[DESedeKeySpec.DES_EDE_KEY_LEN];
		System.arraycopy(key, 0, tmp, 0, DESedeKeySpec.DES_EDE_KEY_LEN);

		return tmp;
	}
	/**
	 * returns the format for this key.
	 *
	 * @return the string "RAW".
	 */
	public String getFormat()
	{
		return "RAW";
	}
}