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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 +1,511 @@
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/*
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* Copyright (c) 2004, 2012, 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.util.Arrays;
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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 AES KeyWrap algorithm as defined
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* in <a href=http://www.w3.org/TR/xmlenc-core/#sec-Alg-SymmetricKeyWrap>
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* "XML Encryption Syntax and Processing" section 5.6.3 "AES Key Wrap".
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* Note: only <code>ECB</code> mode and <code>NoPadding</code> padding
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* 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 AESCipher
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*/
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abstract class AESWrapCipher extends CipherSpi {
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public static final class General extends AESWrapCipher {
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public General() {
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super(-1);
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}
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}
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public static final class AES128 extends AESWrapCipher {
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public AES128() {
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super(16);
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}
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}
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public static final class AES192 extends AESWrapCipher {
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public AES192() {
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super(24);
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}
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}
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public static final class AES256 extends AESWrapCipher {
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public AES256() {
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super(32);
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}
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}
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private static final byte[] IV = {
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(byte) 0xA6, (byte) 0xA6, (byte) 0xA6, (byte) 0xA6,
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(byte) 0xA6, (byte) 0xA6, (byte) 0xA6, (byte) 0xA6
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};
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private static final int blksize = AESConstants.AES_BLOCK_SIZE;
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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 AESCrypt cipher;
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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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* needed to support AES oids which associates a fixed key size
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* to the cipher object.
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*/
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private final int fixedKeySize; // in bytes, -1 if no restriction
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/**
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* Creates an instance of AES KeyWrap cipher with default
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* mode, i.e. "ECB" and padding scheme, i.e. "NoPadding".
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*/
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public AESWrapCipher(int keySize) {
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cipher = new AESCrypt();
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fixedKeySize = keySize;
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}
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/**
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* Sets the mode of this cipher. Only "ECB" 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 "ECB".
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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("ECB")) {
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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. 16 bytes.
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*
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* @return the block size (in bytes), i.e. 16 bytes.
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*/
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protected int engineGetBlockSize() {
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return blksize;
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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 - 8;
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} else {
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result = inputLen + 8;
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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) which is null for this cipher.
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*
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* @return null for this cipher.
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*/
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protected byte[] engineGetIV() {
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return null;
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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:<b>
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* Cipher.WRAP_MODE, and <b>
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* 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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*
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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 for
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* initializing this cipher.
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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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if (opmode == Cipher.WRAP_MODE) {
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decrypting = false;
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} else if (opmode == Cipher.UNWRAP_MODE) {
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decrypting = true;
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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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AESCipher.checkKeySize(key, fixedKeySize);
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cipher.init(decrypting, key.getAlgorithm(), key.getEncoded());
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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:<b>
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* Cipher.WRAP_MODE, and <b>
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* 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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*
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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; must be null for this cipher.
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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 for
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* initializing this cipher
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* @exception InvalidAlgorithmParameterException if the given algorithm
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* parameters is not null.
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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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if (params != null) {
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throw new InvalidAlgorithmParameterException("This cipher " +
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"does not accept any parameters");
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}
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engineInit(opmode, key, random);
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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:<b>
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* Cipher.WRAP_MODE, and <b>
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* 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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*
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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; must be null for this cipher.
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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 is not null.
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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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if (params != null) {
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throw new InvalidAlgorithmParameterException("This cipher " +
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"does not accept any parameters");
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}
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engineInit(opmode, key, random);
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}
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/**
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* This operation is not supported by this cipher.
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* 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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*
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* @return n/a.
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*
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* @exception IllegalStateException upon invocation of this method.
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*/
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protected byte[] engineUpdate(byte[] in, int inOffset, int inLen) {
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throw new IllegalStateException("Cipher has not been initialized");
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}
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/**
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* This operation is not supported by this cipher.
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* 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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* @param out the buffer for the result.
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* @param outOffset the offset in <code>out</code> where the result
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* is stored.
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*
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* @return n/a.
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*
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* @exception IllegalStateException upon invocation of this method.
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*/
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protected int engineUpdate(byte[] in, int inOffset, int inLen,
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byte[] out, int outOffset)
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throws ShortBufferException {
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throw new IllegalStateException("Cipher has not been initialized");
|
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}
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|
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/**
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* This operation is not supported by this cipher.
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* 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
|
||||
* starts
|
||||
* @param inLen the input length.
|
||||
*
|
||||
* @return n/a.
|
||||
*
|
||||
* @exception IllegalStateException upon invocation of this method.
|
||||
*/
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protected byte[] engineDoFinal(byte[] input, int inputOffset,
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int inputLen)
|
||||
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 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 ofset in <code>out</code> where the result
|
||||
* is stored.
|
||||
*
|
||||
* @return n/a.
|
||||
*
|
||||
* @exception IllegalStateException upon invocation of this method.
|
||||
*/
|
||||
protected int engineDoFinal(byte[] in, int inOffset, int inLen,
|
||||
byte[] out, int outOffset)
|
||||
throws IllegalBlockSizeException, ShortBufferException,
|
||||
BadPaddingException {
|
||||
throw new IllegalStateException("Cipher has not been initialized");
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the parameters used with this cipher which is always null
|
||||
* for this cipher.
|
||||
*
|
||||
* @return null since this cipher does not use any parameters.
|
||||
*/
|
||||
protected AlgorithmParameters engineGetParameters() {
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the key size of the given key object in number of bits.
|
||||
*
|
||||
* @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 (!AESCrypt.isKeySizeValid(encoded.length)) {
|
||||
throw new InvalidKeyException("Invalid key length: " +
|
||||
encoded.length + " bytes");
|
||||
}
|
||||
return encoded.length * 8;
|
||||
}
|
||||
|
||||
/**
|
||||
* 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[] out = new byte[keyVal.length + 8];
|
||||
|
||||
if (keyVal.length == 8) {
|
||||
System.arraycopy(IV, 0, out, 0, IV.length);
|
||||
System.arraycopy(keyVal, 0, out, IV.length, 8);
|
||||
cipher.encryptBlock(out, 0, out, 0);
|
||||
} else {
|
||||
if (keyVal.length % 8 != 0) {
|
||||
throw new IllegalBlockSizeException("length of the " +
|
||||
"to be wrapped key should be multiples of 8 bytes");
|
||||
}
|
||||
System.arraycopy(IV, 0, out, 0, IV.length);
|
||||
System.arraycopy(keyVal, 0, out, IV.length, keyVal.length);
|
||||
int N = keyVal.length/8;
|
||||
byte[] buffer = new byte[blksize];
|
||||
for (int j = 0; j < 6; j++) {
|
||||
for (int i = 1; i <= N; i++) {
|
||||
int T = i + j*N;
|
||||
System.arraycopy(out, 0, buffer, 0, IV.length);
|
||||
System.arraycopy(out, i*8, buffer, IV.length, 8);
|
||||
cipher.encryptBlock(buffer, 0, buffer, 0);
|
||||
for (int k = 1; T != 0; k++) {
|
||||
byte v = (byte) T;
|
||||
buffer[IV.length - k] ^= v;
|
||||
T >>>= 8;
|
||||
}
|
||||
System.arraycopy(buffer, 0, out, 0, IV.length);
|
||||
System.arraycopy(buffer, 8, out, 8*i, 8);
|
||||
}
|
||||
}
|
||||
}
|
||||
return out;
|
||||
}
|
||||
|
||||
/**
|
||||
* 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 {
|
||||
int wrappedKeyLen = wrappedKey.length;
|
||||
// ensure the wrappedKey length is multiples of 8 bytes and non-zero
|
||||
if (wrappedKeyLen == 0) {
|
||||
throw new InvalidKeyException("The wrapped key is empty");
|
||||
}
|
||||
if (wrappedKeyLen % 8 != 0) {
|
||||
throw new InvalidKeyException
|
||||
("The wrapped key has invalid key length");
|
||||
}
|
||||
byte[] out = new byte[wrappedKeyLen - 8];
|
||||
byte[] buffer = new byte[blksize];
|
||||
if (wrappedKeyLen == 16) {
|
||||
cipher.decryptBlock(wrappedKey, 0, buffer, 0);
|
||||
for (int i = 0; i < IV.length; i++) {
|
||||
if (IV[i] != buffer[i]) {
|
||||
throw new InvalidKeyException("Integrity check failed");
|
||||
}
|
||||
}
|
||||
System.arraycopy(buffer, IV.length, out, 0, out.length);
|
||||
} else {
|
||||
System.arraycopy(wrappedKey, 0, buffer, 0, IV.length);
|
||||
System.arraycopy(wrappedKey, IV.length, out, 0, out.length);
|
||||
int N = out.length/8;
|
||||
for (int j = 5; j >= 0; j--) {
|
||||
for (int i = N; i > 0; i--) {
|
||||
int T = i + j*N;
|
||||
System.arraycopy(out, 8*(i-1), buffer, IV.length, 8);
|
||||
for (int k = 1; T != 0; k++) {
|
||||
byte v = (byte) T;
|
||||
buffer[IV.length - k] ^= v;
|
||||
T >>>= 8;
|
||||
}
|
||||
cipher.decryptBlock(buffer, 0, buffer, 0);
|
||||
System.arraycopy(buffer, IV.length, out, 8*(i-1), 8);
|
||||
}
|
||||
}
|
||||
for (int i = 0; i < IV.length; i++) {
|
||||
if (IV[i] != buffer[i]) {
|
||||
throw new InvalidKeyException("Integrity check failed");
|
||||
}
|
||||
}
|
||||
}
|
||||
return ConstructKeys.constructKey(out, wrappedKeyAlgorithm,
|
||||
wrappedKeyType);
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue