2362N/A * Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * This class generates a Triple DES key. 0N/A * Initializes this key generator. 0N/A * @param random the source of randomness for this generator 0N/A * Initializes this key generator with the specified parameter 0N/A * set and a user-provided source of randomness. 0N/A * @param params the key generation parameters 0N/A * @param random the source of randomness for this key generator 0N/A * @exception InvalidAlgorithmParameterException if <code>params</code> is 0N/A * inappropriate for this key generator 0N/A (
"Triple DES key generation does not take any parameters");
0N/A * Initializes this key generator for a certain keysize, using the given 0N/A * source of randomness. 0N/A * @param keysize the keysize. This is an algorithm-specific 0N/A * metric specified in number of bits. A keysize with 112 bits of entropy 0N/A * corresponds to a Triple DES key with 2 intermediate keys, and a keysize 0N/A * with 168 bits of entropy corresponds to a Triple DES key with 3 0N/A * intermediate keys. 0N/A * @param random the source of randomness for this key generator 0N/A +
"equal to 112 or 168");
0N/A * Generates the Triple DES key. 0N/A * @return the new Triple DES key 0N/A // 3 intermediate keys 0N/A // Do parity adjustment for each intermediate key 0N/A // 2 intermediate keys 0N/A // Copy the first 8 bytes into the last 0N/A // this never happens