author | valeriep |
Tue, 08 May 2012 17:57:48 -0700 | |
changeset 12685 | 8a448b5b9006 |
parent 10336 | 0bb1999251f8 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2011, 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 com.sun.crypto.provider; |
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import java.security.*; |
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import java.security.spec.*; |
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import javax.crypto.*; |
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import javax.crypto.spec.RC2ParameterSpec; |
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/** |
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* JCE CipherSpi for the RC2(tm) algorithm as described in RFC 2268. |
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* The real code is in CipherCore and RC2Crypt. |
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* |
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* @since 1.5 |
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* @author Andreas Sterbenz |
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*/ |
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public final class RC2Cipher extends CipherSpi { |
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// internal CipherCore & RC2Crypt objects which do the real work. |
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private final CipherCore core; |
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private final RC2Crypt embeddedCipher; |
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public RC2Cipher() { |
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embeddedCipher = new RC2Crypt(); |
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core = new CipherCore(embeddedCipher, 8); |
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} |
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protected void engineSetMode(String mode) |
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throws NoSuchAlgorithmException { |
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core.setMode(mode); |
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} |
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protected void engineSetPadding(String paddingScheme) |
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throws NoSuchPaddingException { |
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core.setPadding(paddingScheme); |
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} |
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protected int engineGetBlockSize() { |
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return 8; |
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} |
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protected int engineGetOutputSize(int inputLen) { |
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return core.getOutputSize(inputLen); |
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} |
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protected byte[] engineGetIV() { |
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return core.getIV(); |
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} |
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protected AlgorithmParameters engineGetParameters() { |
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return core.getParameters("RC2"); |
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} |
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protected void engineInit(int opmode, Key key, SecureRandom random) |
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throws InvalidKeyException { |
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embeddedCipher.initEffectiveKeyBits(0); |
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core.init(opmode, key, random); |
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} |
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protected void engineInit(int opmode, Key key, |
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AlgorithmParameterSpec params, SecureRandom random) |
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throws InvalidKeyException, InvalidAlgorithmParameterException { |
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if (params != null && params instanceof RC2ParameterSpec) { |
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embeddedCipher.initEffectiveKeyBits |
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(((RC2ParameterSpec)params).getEffectiveKeyBits()); |
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} else { |
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embeddedCipher.initEffectiveKeyBits(0); |
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} |
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core.init(opmode, key, params, random); |
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} |
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protected void engineInit(int opmode, Key key, |
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AlgorithmParameters params, SecureRandom random) |
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throws InvalidKeyException, InvalidAlgorithmParameterException { |
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if (params != null && params.getAlgorithm().equals("RC2")) { |
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try { |
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7064075: Security libraries don't build with javac -Xlint:all,-deprecation -Werror
jjg
parents:
5506
diff
changeset
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RC2ParameterSpec rc2Params = |
0bb1999251f8
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params.getParameterSpec(RC2ParameterSpec.class); |
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engineInit(opmode, key, rc2Params, random); |
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} catch (InvalidParameterSpecException ipse) { |
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throw new InvalidAlgorithmParameterException |
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("Wrong parameter type: RC2 expected"); |
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} |
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} else { |
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embeddedCipher.initEffectiveKeyBits(0); |
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core.init(opmode, key, params, random); |
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} |
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} |
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protected byte[] engineUpdate(byte[] in, int inOfs, int inLen) { |
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return core.update(in, inOfs, inLen); |
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} |
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protected int engineUpdate(byte[] in, int inOfs, int inLen, |
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byte[] out, int outOfs) throws ShortBufferException { |
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return core.update(in, inOfs, inLen, out, outOfs); |
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} |
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protected byte[] engineDoFinal(byte[] in, int inOfs, int inLen) |
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throws IllegalBlockSizeException, BadPaddingException { |
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return core.doFinal(in, inOfs, inLen); |
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} |
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protected int engineDoFinal(byte[] in, int inOfs, int inLen, |
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byte[] out, int outOfs) throws IllegalBlockSizeException, |
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ShortBufferException, BadPaddingException { |
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return core.doFinal(in, inOfs, inLen, out, outOfs); |
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} |
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protected int engineGetKeySize(Key key) throws InvalidKeyException { |
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byte[] keyBytes = CipherCore.getKeyBytes(key); |
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RC2Crypt.checkKey(key.getAlgorithm(), keyBytes.length); |
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return keyBytes.length << 3; |
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} |
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protected byte[] engineWrap(Key key) |
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throws IllegalBlockSizeException, InvalidKeyException { |
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return core.wrap(key); |
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} |
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protected Key engineUnwrap(byte[] wrappedKey, String wrappedKeyAlgorithm, |
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int wrappedKeyType) throws InvalidKeyException, |
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NoSuchAlgorithmException { |
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return core.unwrap(wrappedKey, wrappedKeyAlgorithm, wrappedKeyType); |
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} |
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} |