| /* |
| * Copyright (c) 2004, 2007, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| |
| package sun.security.krb5.internal.crypto; |
| |
| import sun.security.krb5.internal.crypto.dk.Des3DkCrypto; |
| import sun.security.krb5.KrbCryptoException; |
| import java.security.GeneralSecurityException; |
| |
| /** |
| * Class with static methods for doing Triple DES operations. |
| */ |
| public class Des3 { |
| private static final Des3DkCrypto CRYPTO = new Des3DkCrypto(); |
| |
| private Des3() { |
| } |
| |
| public static byte[] stringToKey(char[] chars) |
| throws GeneralSecurityException { |
| return CRYPTO.stringToKey(chars); |
| } |
| |
| public static byte[] parityFix(byte[] value) |
| throws GeneralSecurityException { |
| return CRYPTO.parityFix(value); |
| } |
| |
| // in bytes |
| public static int getChecksumLength() { |
| return CRYPTO.getChecksumLength(); |
| } |
| |
| public static byte[] calculateChecksum(byte[] baseKey, int usage, |
| byte[] input, int start, int len) throws GeneralSecurityException { |
| return CRYPTO.calculateChecksum(baseKey, usage, input, start, len); |
| } |
| |
| public static byte[] encrypt(byte[] baseKey, int usage, |
| byte[] ivec, byte[] plaintext, int start, int len) |
| throws GeneralSecurityException, KrbCryptoException { |
| return CRYPTO.encrypt(baseKey, usage, ivec, null /* new_ivec */, |
| plaintext, start, len); |
| } |
| |
| /* Encrypt plaintext; do not add confounder, padding, or checksum */ |
| public static byte[] encryptRaw(byte[] baseKey, int usage, |
| byte[] ivec, byte[] plaintext, int start, int len) |
| throws GeneralSecurityException, KrbCryptoException { |
| return CRYPTO.encryptRaw(baseKey, usage, ivec, plaintext, start, len); |
| } |
| |
| public static byte[] decrypt(byte[] baseKey, int usage, byte[] ivec, |
| byte[] ciphertext, int start, int len) |
| throws GeneralSecurityException { |
| return CRYPTO.decrypt(baseKey, usage, ivec, ciphertext, start, len); |
| } |
| |
| /** |
| * Decrypt ciphertext; do not remove confounder, padding, |
| * or check checksum |
| */ |
| public static byte[] decryptRaw(byte[] baseKey, int usage, byte[] ivec, |
| byte[] ciphertext, int start, int len) |
| throws GeneralSecurityException { |
| return CRYPTO.decryptRaw(baseKey, usage, ivec, ciphertext, start, len); |
| } |
| }; |