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8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson
parent
270fe13182
commit
3789983e89
56923 changed files with 3 additions and 15727 deletions
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@ -0,0 +1,564 @@
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/*
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* Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
|
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* 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.
|
||||
*/
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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.*;
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/**
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* This class implements the CMS DESede KeyWrap algorithm as defined
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* in <a href=http://www.w3.org/TR/xmlenc-core/#sec-Alg-SymmetricKeyWrap></a>
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* "XML Encryption Syntax and Processing" section 5.6.2
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* "CMS Triple DES Key Wrap".
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* Note: only <code>CBC</code> mode and <code>NoPadding</code> padding
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* scheme can be used for this algorithm.
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*
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* @author Valerie Peng
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*
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*
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* @see DESedeCipher
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*/
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public final class DESedeWrapCipher extends CipherSpi {
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private static final byte[] IV2 = {
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(byte) 0x4a, (byte) 0xdd, (byte) 0xa2, (byte) 0x2c,
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(byte) 0x79, (byte) 0xe8, (byte) 0x21, (byte) 0x05
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};
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private static final int CHECKSUM_LEN = 8;
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private static final int IV_LEN = 8;
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/*
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* internal cipher object which does the real work.
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*/
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private FeedbackCipher cipher;
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/*
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* iv for (re-)initializing the internal cipher object.
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*/
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private byte[] iv = null;
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/*
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* key for re-initializing the internal cipher object.
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*/
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private Key cipherKey = null;
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/*
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* are we encrypting or decrypting?
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*/
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private boolean decrypting = false;
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/**
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* Creates an instance of CMS DESede KeyWrap cipher with default
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* mode, i.e. "CBC" and padding scheme, i.e. "NoPadding".
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*/
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public DESedeWrapCipher() {
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cipher = new CipherBlockChaining(new DESedeCrypt());
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}
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/**
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* Sets the mode of this cipher. Only "CBC" mode is accepted for this
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* cipher.
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*
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* @param mode the cipher mode.
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*
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* @exception NoSuchAlgorithmException if the requested cipher mode
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* is not "CBC".
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*/
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protected void engineSetMode(String mode)
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throws NoSuchAlgorithmException {
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if (!mode.equalsIgnoreCase("CBC")) {
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throw new NoSuchAlgorithmException(mode + " cannot be used");
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}
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}
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/**
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* Sets the padding mechanism of this cipher. Only "NoPadding" schmem
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* is accepted for this cipher.
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*
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* @param padding the padding mechanism.
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*
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* @exception NoSuchPaddingException if the requested padding mechanism
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* is not "NoPadding".
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*/
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protected void engineSetPadding(String padding)
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throws NoSuchPaddingException {
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if (!padding.equalsIgnoreCase("NoPadding")) {
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throw new NoSuchPaddingException(padding + " cannot be used");
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}
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}
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/**
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* Returns the block size (in bytes), i.e. 8 bytes.
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*
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* @return the block size (in bytes), i.e. 8 bytes.
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*/
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protected int engineGetBlockSize() {
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return DESConstants.DES_BLOCK_SIZE;
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}
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/**
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* Returns the length in bytes that an output buffer would need to be
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* given the input length <code>inputLen</code> (in bytes).
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*
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* <p>The actual output length of the next <code>update</code> or
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* <code>doFinal</code> call may be smaller than the length returned
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* by this method.
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*
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* @param inputLen the input length (in bytes).
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*
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* @return the required output buffer size (in bytes).
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*/
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protected int engineGetOutputSize(int inputLen) {
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// can only return an upper-limit if not initialized yet.
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int result = 0;
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if (decrypting) {
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result = inputLen - 16; // CHECKSUM_LEN + IV_LEN;
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} else {
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result = inputLen + 16;
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}
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return (result < 0? 0:result);
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}
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/**
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* Returns the initialization vector (IV) in a new buffer.
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*
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* @return the initialization vector, or null if the underlying
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* algorithm does not use an IV, or if the IV has not yet
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* been set.
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*/
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protected byte[] engineGetIV() {
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return (iv == null) ? null : iv.clone();
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}
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/**
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* Initializes this cipher with a key and a source of randomness.
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*
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* <p>The cipher only supports the following two operation modes:
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* {@code Cipher.WRAP_MODE}, and {@code Cipher.UNWRAP_MODE}.
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* <p>For modes other than the above two, UnsupportedOperationException
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* will be thrown.
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* <p>If this cipher requires an initialization vector (IV), it will get
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* it from <code>random</code>.
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*
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* @param opmode the operation mode of this cipher. Only
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* <code>WRAP_MODE</code> or <code>UNWRAP_MODE</code>) are accepted.
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* @param key the secret key.
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* @param random the source of randomness.
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*
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* @exception InvalidKeyException if the given key is inappropriate
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* or if parameters are required but not supplied.
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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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try {
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engineInit(opmode, key, (AlgorithmParameterSpec) null, random);
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} catch (InvalidAlgorithmParameterException iape) {
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// should never happen
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InvalidKeyException ike =
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new InvalidKeyException("Parameters required");
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ike.initCause(iape);
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throw ike;
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}
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}
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/**
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* Initializes this cipher with a key, a set of algorithm parameters,
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* and a source of randomness.
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*
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* <p>The cipher only supports the following two operation modes:
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* {@code Cipher.WRAP_MODE}, and {@code Cipher.UNWRAP_MODE}.
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* <p>For modes other than the above two, UnsupportedOperationException
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* will be thrown.
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* <p>If this cipher requires an initialization vector (IV), it will get
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* it from <code>random</code>.
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*
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* @param opmode the operation mode of this cipher. Only
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* <code>WRAP_MODE</code> or <code>UNWRAP_MODE</code>) are accepted.
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* @param key the secret key.
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* @param params the algorithm parameters.
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* @param random the source of randomness.
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*
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* @exception InvalidKeyException if the given key is inappropriate.
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* @exception InvalidAlgorithmParameterException if the given algorithm
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* parameters are inappropriate for this cipher.
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*/
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protected void engineInit(int opmode, Key key,
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AlgorithmParameterSpec params,
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SecureRandom random)
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throws InvalidKeyException, InvalidAlgorithmParameterException {
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byte[] currIv = null;
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if (opmode == Cipher.WRAP_MODE) {
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decrypting = false;
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if (params == null) {
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iv = new byte[IV_LEN];
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if (random == null) {
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random = SunJCE.getRandom();
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}
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random.nextBytes(iv);
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}
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else if (params instanceof IvParameterSpec) {
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iv = ((IvParameterSpec) params).getIV();
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} else {
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throw new InvalidAlgorithmParameterException
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("Wrong parameter type: IV expected");
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}
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currIv = iv;
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} else if (opmode == Cipher.UNWRAP_MODE) {
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if (params != null) {
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throw new InvalidAlgorithmParameterException
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("No parameter accepted for unwrapping keys");
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}
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iv = null;
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decrypting = true;
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currIv = IV2;
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} else {
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throw new UnsupportedOperationException("This cipher can " +
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"only be used for key wrapping and unwrapping");
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}
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cipher.init(decrypting, key.getAlgorithm(), key.getEncoded(),
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currIv);
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cipherKey = key;
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}
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/**
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* Initializes this cipher with a key, a set of algorithm parameters,
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* and a source of randomness.
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*
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* <p>The cipher only supports the following two operation modes:
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* {@code Cipher.WRAP_MODE}, and {@code Cipher.UNWRAP_MODE}.
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* <p>For modes other than the above two, UnsupportedOperationException
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* will be thrown.
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* <p>If this cipher requires an initialization vector (IV), it will get
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* it from <code>random</code>.
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*
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* @param opmode the operation mode of this cipher. Only
|
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* <code>WRAP_MODE</code> or <code>UNWRAP_MODE</code>) are accepted.
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* @param key the secret key.
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* @param params the algorithm parameters.
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* @param random the source of randomness.
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*
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* @exception InvalidKeyException if the given key is inappropriate.
|
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* @exception InvalidAlgorithmParameterException if the given algorithm
|
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* parameters are inappropriate for this cipher.
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*/
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protected void engineInit(int opmode, Key key,
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AlgorithmParameters params,
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SecureRandom random)
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throws InvalidKeyException, InvalidAlgorithmParameterException {
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IvParameterSpec ivSpec = null;
|
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if (params != null) {
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try {
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DESedeParameters paramsEng = new DESedeParameters();
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paramsEng.engineInit(params.getEncoded());
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ivSpec = paramsEng.engineGetParameterSpec(IvParameterSpec.class);
|
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} catch (Exception ex) {
|
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InvalidAlgorithmParameterException iape =
|
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new InvalidAlgorithmParameterException
|
||||
("Wrong parameter type: IV expected");
|
||||
iape.initCause(ex);
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throw iape;
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}
|
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}
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engineInit(opmode, key, ivSpec, random);
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}
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|
||||
/**
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||||
* This operation is not supported by this cipher.
|
||||
* Since it's impossible to initialize this cipher given the
|
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* current Cipher.engineInit(...) implementation,
|
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* IllegalStateException will always be thrown upon invocation.
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*
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* @param in the input buffer.
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* @param inOffset the offset in <code>in</code> where the input
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* starts.
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||||
* @param inLen the input length.
|
||||
*
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||||
* @return n/a.
|
||||
*
|
||||
* @exception IllegalStateException upon invocation of this method.
|
||||
*/
|
||||
protected byte[] engineUpdate(byte[] in, int inOffset, int inLen) {
|
||||
throw new IllegalStateException("Cipher has not been initialized");
|
||||
}
|
||||
|
||||
/**
|
||||
* This operation is not supported by this cipher.
|
||||
* Since it's impossible to initialize this cipher given the
|
||||
* current Cipher.engineInit(...) implementation,
|
||||
* IllegalStateException will always be thrown upon invocation.
|
||||
*
|
||||
* @param in the input buffer.
|
||||
* @param inOffset the offset in <code>in</code> where the input
|
||||
* starts.
|
||||
* @param inLen the input length.
|
||||
* @param out the buffer for the result.
|
||||
* @param outOffset the offset in <code>out</code> where the result
|
||||
* is stored.
|
||||
*
|
||||
* @return n/a.
|
||||
*
|
||||
* @exception IllegalStateException upon invocation of this method.
|
||||
*/
|
||||
protected int engineUpdate(byte[] in, int inOffset, int inLen,
|
||||
byte[] out, int outOffset)
|
||||
throws ShortBufferException {
|
||||
throw new IllegalStateException("Cipher has not been initialized");
|
||||
}
|
||||
|
||||
/**
|
||||
* This operation is not supported by this cipher.
|
||||
* Since it's impossible to initialize this cipher given the
|
||||
* current Cipher.engineInit(...) implementation,
|
||||
* IllegalStateException will always be thrown upon invocation.
|
||||
*
|
||||
* @param in the input buffer.
|
||||
* @param inOffset the offset in <code>in</code> where the input
|
||||
* starts.
|
||||
* @param inLen the input length.
|
||||
*
|
||||
* @return the new buffer with the result.
|
||||
*
|
||||
* @exception IllegalStateException upon invocation of this method.
|
||||
*/
|
||||
protected byte[] engineDoFinal(byte[] in, int inOffset, int inLen)
|
||||
throws IllegalBlockSizeException, BadPaddingException {
|
||||
throw new IllegalStateException("Cipher has not been initialized");
|
||||
}
|
||||
|
||||
/**
|
||||
* This operation is not supported by this cipher.
|
||||
* Since it's impossible to initialize this cipher given the
|
||||
* current Cipher.engineInit(...) implementation,
|
||||
* IllegalStateException will always be thrown upon invocation.
|
||||
*
|
||||
* @param input the input buffer.
|
||||
* @param inputOffset the offset in {@code input} where the input
|
||||
* starts.
|
||||
* @param inputLen the input length.
|
||||
* @param output the buffer for the result.
|
||||
* @param outputOffset the ofset in {@code output} where the result
|
||||
* is stored.
|
||||
*
|
||||
* @return the number of bytes stored in {@code out}.
|
||||
*
|
||||
* @exception IllegalStateException upon invocation of this method.
|
||||
*/
|
||||
protected int engineDoFinal(byte[] input, int inputOffset, int inputLen,
|
||||
byte[] output, int outputOffset)
|
||||
throws IllegalBlockSizeException, ShortBufferException,
|
||||
BadPaddingException {
|
||||
throw new IllegalStateException("Cipher has not been initialized");
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the parameters used with this cipher.
|
||||
* Note that null maybe returned if this cipher does not use any
|
||||
* parameters or when it has not be set, e.g. initialized with
|
||||
* UNWRAP_MODE but wrapped key data has not been given.
|
||||
*
|
||||
* @return the parameters used with this cipher; can be null.
|
||||
*/
|
||||
protected AlgorithmParameters engineGetParameters() {
|
||||
AlgorithmParameters params = null;
|
||||
if (iv != null) {
|
||||
String algo = cipherKey.getAlgorithm();
|
||||
try {
|
||||
params = AlgorithmParameters.getInstance(algo,
|
||||
SunJCE.getInstance());
|
||||
params.init(new IvParameterSpec(iv));
|
||||
} catch (NoSuchAlgorithmException nsae) {
|
||||
// should never happen
|
||||
throw new RuntimeException("Cannot find " + algo +
|
||||
" AlgorithmParameters implementation in SunJCE provider");
|
||||
} catch (InvalidParameterSpecException ipse) {
|
||||
// should never happen
|
||||
throw new RuntimeException("IvParameterSpec not supported");
|
||||
}
|
||||
}
|
||||
return params;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the key size of the given key object in number of bits.
|
||||
* This cipher always return the same key size as the DESede ciphers.
|
||||
*
|
||||
* @param key the key object.
|
||||
*
|
||||
* @return the "effective" key size of the given key object.
|
||||
*
|
||||
* @exception InvalidKeyException if <code>key</code> is invalid.
|
||||
*/
|
||||
protected int engineGetKeySize(Key key) throws InvalidKeyException {
|
||||
byte[] encoded = key.getEncoded();
|
||||
if (encoded.length != 24) {
|
||||
throw new InvalidKeyException("Invalid key length: " +
|
||||
encoded.length + " bytes");
|
||||
}
|
||||
// Return the effective key length
|
||||
return 112;
|
||||
}
|
||||
|
||||
/**
|
||||
* Wrap a key.
|
||||
*
|
||||
* @param key the key to be wrapped.
|
||||
*
|
||||
* @return the wrapped key.
|
||||
*
|
||||
* @exception IllegalBlockSizeException if this cipher is a block
|
||||
* cipher, no padding has been requested, and the length of the
|
||||
* encoding of the key to be wrapped is not a
|
||||
* multiple of the block size.
|
||||
*
|
||||
* @exception InvalidKeyException if it is impossible or unsafe to
|
||||
* wrap the key with this cipher (e.g., a hardware protected key is
|
||||
* being passed to a software only cipher).
|
||||
*/
|
||||
protected byte[] engineWrap(Key key)
|
||||
throws IllegalBlockSizeException, InvalidKeyException {
|
||||
byte[] keyVal = key.getEncoded();
|
||||
if ((keyVal == null) || (keyVal.length == 0)) {
|
||||
throw new InvalidKeyException("Cannot get an encoding of " +
|
||||
"the key to be wrapped");
|
||||
}
|
||||
|
||||
byte[] cks = getChecksum(keyVal);
|
||||
byte[] in = new byte[keyVal.length + CHECKSUM_LEN];
|
||||
System.arraycopy(keyVal, 0, in, 0, keyVal.length);
|
||||
System.arraycopy(cks, 0, in, keyVal.length, CHECKSUM_LEN);
|
||||
|
||||
byte[] out = new byte[iv.length + in.length];
|
||||
System.arraycopy(iv, 0, out, 0, iv.length);
|
||||
|
||||
cipher.encrypt(in, 0, in.length, out, iv.length);
|
||||
|
||||
// reverse the array content
|
||||
for (int i = 0; i < out.length/2; i++) {
|
||||
byte temp = out[i];
|
||||
out[i] = out[out.length-1-i];
|
||||
out[out.length-1-i] = temp;
|
||||
}
|
||||
try {
|
||||
cipher.init(false, cipherKey.getAlgorithm(),
|
||||
cipherKey.getEncoded(), IV2);
|
||||
} catch (InvalidKeyException ike) {
|
||||
// should never happen
|
||||
throw new RuntimeException("Internal cipher key is corrupted");
|
||||
}
|
||||
byte[] out2 = new byte[out.length];
|
||||
cipher.encrypt(out, 0, out.length, out2, 0);
|
||||
|
||||
// restore cipher state to prior to this call
|
||||
try {
|
||||
cipher.init(decrypting, cipherKey.getAlgorithm(),
|
||||
cipherKey.getEncoded(), iv);
|
||||
} catch (InvalidKeyException ike) {
|
||||
// should never happen
|
||||
throw new RuntimeException("Internal cipher key is corrupted");
|
||||
}
|
||||
return out2;
|
||||
}
|
||||
|
||||
/**
|
||||
* Unwrap a previously wrapped key.
|
||||
*
|
||||
* @param wrappedKey the key to be unwrapped.
|
||||
*
|
||||
* @param wrappedKeyAlgorithm the algorithm the wrapped key is for.
|
||||
*
|
||||
* @param wrappedKeyType the type of the wrapped key.
|
||||
* This is one of <code>Cipher.SECRET_KEY</code>,
|
||||
* <code>Cipher.PRIVATE_KEY</code>, or <code>Cipher.PUBLIC_KEY</code>.
|
||||
*
|
||||
* @return the unwrapped key.
|
||||
*
|
||||
* @exception NoSuchAlgorithmException if no installed providers
|
||||
* can create keys of type <code>wrappedKeyType</code> for the
|
||||
* <code>wrappedKeyAlgorithm</code>.
|
||||
*
|
||||
* @exception InvalidKeyException if <code>wrappedKey</code> does not
|
||||
* represent a wrapped key of type <code>wrappedKeyType</code> for
|
||||
* the <code>wrappedKeyAlgorithm</code>.
|
||||
*/
|
||||
protected Key engineUnwrap(byte[] wrappedKey,
|
||||
String wrappedKeyAlgorithm,
|
||||
int wrappedKeyType)
|
||||
throws InvalidKeyException, NoSuchAlgorithmException {
|
||||
if (wrappedKey.length == 0) {
|
||||
throw new InvalidKeyException("The wrapped key is empty");
|
||||
}
|
||||
byte[] buffer = new byte[wrappedKey.length];
|
||||
cipher.decrypt(wrappedKey, 0, wrappedKey.length, buffer, 0);
|
||||
|
||||
// reverse array content
|
||||
for (int i = 0; i < buffer.length/2; i++) {
|
||||
byte temp = buffer[i];
|
||||
buffer[i] = buffer[buffer.length-1-i];
|
||||
buffer[buffer.length-1-i] = temp;
|
||||
}
|
||||
iv = new byte[IV_LEN];
|
||||
System.arraycopy(buffer, 0, iv, 0, iv.length);
|
||||
cipher.init(true, cipherKey.getAlgorithm(), cipherKey.getEncoded(),
|
||||
iv);
|
||||
byte[] buffer2 = new byte[buffer.length - iv.length];
|
||||
cipher.decrypt(buffer, iv.length, buffer2.length,
|
||||
buffer2, 0);
|
||||
int keyValLen = buffer2.length - CHECKSUM_LEN;
|
||||
byte[] cks = getChecksum(buffer2, 0, keyValLen);
|
||||
int offset = keyValLen;
|
||||
for (int i = 0; i < CHECKSUM_LEN; i++) {
|
||||
if (buffer2[offset + i] != cks[i]) {
|
||||
throw new InvalidKeyException("Checksum comparison failed");
|
||||
}
|
||||
}
|
||||
// restore cipher state to prior to this call
|
||||
cipher.init(decrypting, cipherKey.getAlgorithm(),
|
||||
cipherKey.getEncoded(), IV2);
|
||||
byte[] out = new byte[keyValLen];
|
||||
System.arraycopy(buffer2, 0, out, 0, keyValLen);
|
||||
return ConstructKeys.constructKey(out, wrappedKeyAlgorithm,
|
||||
wrappedKeyType);
|
||||
}
|
||||
|
||||
private static final byte[] getChecksum(byte[] in) {
|
||||
return getChecksum(in, 0, in.length);
|
||||
}
|
||||
private static final byte[] getChecksum(byte[] in, int offset, int len) {
|
||||
MessageDigest md = null;
|
||||
try {
|
||||
md = MessageDigest.getInstance("SHA1");
|
||||
} catch (NoSuchAlgorithmException nsae) {
|
||||
throw new RuntimeException("SHA1 message digest not available");
|
||||
}
|
||||
md.update(in, offset, len);
|
||||
byte[] cks = new byte[CHECKSUM_LEN];
|
||||
System.arraycopy(md.digest(), 0, cks, 0, cks.length);
|
||||
return cks;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue