89 lines
3.3 KiB
Java
89 lines
3.3 KiB
Java
/*
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* Copyright (c) 2004, 2005, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.security.krb5.internal.crypto;
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import sun.security.krb5.internal.crypto.dk.AesDkCrypto;
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import sun.security.krb5.KrbCryptoException;
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import java.security.GeneralSecurityException;
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/**
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* Class with static methods for doing AES operations.
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*
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* @author Seema Malkani
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*/
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public class Aes256 {
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private static final AesDkCrypto CRYPTO = new AesDkCrypto(256);
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private Aes256() {
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}
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public static byte[] stringToKey(char[] password, String salt, byte[] params)
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throws GeneralSecurityException {
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return CRYPTO.stringToKey(password, salt, params);
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}
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// in bytes
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public static int getChecksumLength() {
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return CRYPTO.getChecksumLength();
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}
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public static byte[] calculateChecksum(byte[] baseKey, int usage,
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byte[] input, int start, int len) throws GeneralSecurityException {
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return CRYPTO.calculateChecksum(baseKey, usage, input, start, len);
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}
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public static byte[] encrypt(byte[] baseKey, int usage,
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byte[] ivec, byte[] plaintext, int start, int len)
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throws GeneralSecurityException, KrbCryptoException {
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return CRYPTO.encrypt(baseKey, usage, ivec, null /* new_ivec */,
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plaintext, start, len);
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}
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/* Encrypt plaintext; do not add confounder, padding, or checksum */
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public static byte[] encryptRaw(byte[] baseKey, int usage,
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byte[] ivec, byte[] plaintext, int start, int len)
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throws GeneralSecurityException, KrbCryptoException {
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return CRYPTO.encryptRaw(baseKey, usage, ivec, plaintext, start, len);
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}
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public static byte[] decrypt(byte[] baseKey, int usage, byte[] ivec,
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byte[] ciphertext, int start, int len)
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throws GeneralSecurityException {
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return CRYPTO.decrypt(baseKey, usage, ivec, ciphertext, start, len);
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}
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/*
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* Decrypt ciphertext; do not remove confounder, padding, or check
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* checksum
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*/
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public static byte[] decryptRaw(byte[] baseKey, int usage, byte[] ivec,
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byte[] ciphertext, int start, int len)
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throws GeneralSecurityException {
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return CRYPTO.decryptRaw(baseKey, usage, ivec, ciphertext, start, len);
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}
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};
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