J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004-2005 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.security.krb5.internal.crypto; |
| 27 | |
| 28 | import sun.security.krb5.internal.crypto.dk.AesDkCrypto; |
| 29 | import sun.security.krb5.KrbCryptoException; |
| 30 | import java.security.GeneralSecurityException; |
| 31 | |
| 32 | /** |
| 33 | * Class with static methods for doing AES operations. |
| 34 | * |
| 35 | * @author Seema Malkani |
| 36 | */ |
| 37 | |
| 38 | public class Aes128 { |
| 39 | private static final AesDkCrypto CRYPTO = new AesDkCrypto(128); |
| 40 | |
| 41 | private Aes128() { |
| 42 | } |
| 43 | |
| 44 | public static byte[] stringToKey(char[] password, String salt, byte[] params) |
| 45 | throws GeneralSecurityException { |
| 46 | return CRYPTO.stringToKey(password, salt, params); |
| 47 | } |
| 48 | |
| 49 | // in bytes |
| 50 | public static int getChecksumLength() { |
| 51 | return CRYPTO.getChecksumLength(); |
| 52 | } |
| 53 | |
| 54 | public static byte[] calculateChecksum(byte[] baseKey, int usage, |
| 55 | byte[] input, int start, int len) throws GeneralSecurityException { |
| 56 | return CRYPTO.calculateChecksum(baseKey, usage, input, start, len); |
| 57 | } |
| 58 | |
| 59 | public static byte[] encrypt(byte[] baseKey, int usage, |
| 60 | byte[] ivec, byte[] plaintext, int start, int len) |
| 61 | throws GeneralSecurityException, KrbCryptoException { |
| 62 | return CRYPTO.encrypt(baseKey, usage, ivec, null /* new_ivec */, |
| 63 | plaintext, start, len); |
| 64 | } |
| 65 | |
| 66 | /* Encrypt plaintext; do not add confounder, or checksum */ |
| 67 | public static byte[] encryptRaw(byte[] baseKey, int usage, |
| 68 | byte[] ivec, byte[] plaintext, int start, int len) |
| 69 | throws GeneralSecurityException, KrbCryptoException { |
| 70 | return CRYPTO.encryptRaw(baseKey, usage, ivec, plaintext, start, len); |
| 71 | } |
| 72 | |
| 73 | public static byte[] decrypt(byte[] baseKey, int usage, byte[] ivec, |
| 74 | byte[] ciphertext, int start, int len) |
| 75 | throws GeneralSecurityException { |
| 76 | return CRYPTO.decrypt(baseKey, usage, ivec, ciphertext, start, len); |
| 77 | } |
| 78 | |
| 79 | /* Decrypt ciphertext; do not remove confounder, or check checksum */ |
| 80 | public static byte[] decryptRaw(byte[] baseKey, int usage, byte[] ivec, |
| 81 | byte[] ciphertext, int start, int len) |
| 82 | throws GeneralSecurityException { |
| 83 | return CRYPTO.decryptRaw(baseKey, usage, ivec, ciphertext, start, len); |
| 84 | } |
| 85 | }; |