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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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/*
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* Copyright (c) 1997, 2013, 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.io.UnsupportedEncodingException;
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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 represents password-based encryption as defined by the PKCS #5
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* standard.
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* The particular algorithm implemented is pbeWithMD5AndDES-CBC.
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* Padding is done as described in PKCS #5.
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*
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* @author Jan Luehe
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*
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*
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* @see javax.crypto.Cipher
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*/
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public final class PBEWithMD5AndDESCipher extends CipherSpi {
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// the encapsulated DES cipher
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private PBES1Core core;
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/**
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* Creates an instance of this cipher, and initializes its mode (CBC) and
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* padding (PKCS5).
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*
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* @exception NoSuchAlgorithmException if the required cipher mode (CBC) is
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* unavailable
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* @exception NoSuchPaddingException if the required padding mechanism
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* (PKCS5Padding) is unavailable
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*/
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public PBEWithMD5AndDESCipher()
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throws NoSuchAlgorithmException, NoSuchPaddingException {
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core = new PBES1Core("DES");
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}
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/**
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* Sets the mode of this cipher. This algorithm can only be run in CBC
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* mode.
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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 is
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* invalid
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*/
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protected void engineSetMode(String mode) throws NoSuchAlgorithmException {
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if ((mode != null) && (!mode.equalsIgnoreCase("CBC"))) {
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throw new NoSuchAlgorithmException("Invalid cipher mode: " + mode);
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}
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}
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/**
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* Sets the padding mechanism of this cipher. This algorithm only uses
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* PKCS #5 padding.
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*
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* @param paddingScheme the padding mechanism
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*
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* @exception NoSuchPaddingException if the requested padding mechanism
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* is invalid
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*/
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protected void engineSetPadding(String paddingScheme)
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throws NoSuchPaddingException
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{
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if ((paddingScheme != null) &&
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(!paddingScheme.equalsIgnoreCase("PKCS5Padding"))) {
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throw new NoSuchPaddingException("Invalid padding scheme: " +
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paddingScheme);
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}
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}
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/**
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* Returns the block size (in bytes).
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*
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* @return the block size (in bytes)
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*/
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protected int engineGetBlockSize() {
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return core.getBlockSize();
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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 in
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* order to hold the result of the next <code>update</code> or
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* <code>doFinal</code> operation, given the input length
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* <code>inputLen</code> (in bytes).
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*
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* <p>This call takes into account any unprocessed (buffered) data from a
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* previous <code>update</code> call, and padding.
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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 by
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* 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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*/
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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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/**
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* Returns the initialization vector (IV) in a new buffer.
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*
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* <p> This is useful in the case where a random IV has been created
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* (see <a href = "#init">init</a>),
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* or in the context of password-based encryption or
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* decryption, where the IV is derived from a user-supplied password.
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*
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* @return the initialization vector in a new buffer, or null if the
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* underlying 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 core.getIV();
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}
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/**
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* Returns the parameters used with this cipher.
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*
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* <p>The returned parameters may be the same that were used to initialize
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* this cipher, or may contain the default set of parameters or a set of
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* randomly generated parameters used by the underlying cipher
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* implementation (provided that the underlying cipher implementation
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* uses a default set of parameters or creates new parameters if it needs
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* parameters but was not initialized with any).
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*
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* @return the parameters used with this cipher, or null if this cipher
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* does not use any parameters.
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*/
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protected AlgorithmParameters engineGetParameters() {
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return core.getParameters();
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}
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/**
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* Initializes this cipher with a key and a source
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* of randomness.
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* The cipher is initialized for one of the following four operations:
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* encryption, decryption, key wrapping or key unwrapping, depending on
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* the value of <code>opmode</code>.
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*
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* <p>If this cipher (including its underlying feedback or padding scheme)
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* requires any random bytes, it will get them from <code>random</code>.
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*
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* @param opmode the operation mode of this cipher (this is one of
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* the following:
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* <code>ENCRYPT_MODE</code>, <code>DECRYPT_MODE</code>),
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* <code>WRAP_MODE</code> or <code>UNWRAP_MODE</code>)
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* @param key the encryption 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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try {
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engineInit(opmode, key, (AlgorithmParameterSpec) null, random);
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} catch (InvalidAlgorithmParameterException ie) {
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InvalidKeyException ike =
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new InvalidKeyException("requires PBE parameters");
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ike.initCause(ie);
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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
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* algorithm parameters, and a source of randomness.
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* The cipher is initialized for one of the following four operations:
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* encryption, decryption, key wrapping or key unwrapping, depending on
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* the value of <code>opmode</code>.
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*
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* <p>If this cipher (including its underlying feedback or padding scheme)
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* requires any random bytes, it will get them from <code>random</code>.
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*
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* @param opmode the operation mode of this cipher (this is one of
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* the following:
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* <code>ENCRYPT_MODE</code>, <code>DECRYPT_MODE</code>),
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* <code>WRAP_MODE</code> or <code>UNWRAP_MODE</code>)
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* @param key the encryption 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 for
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* initializing this cipher
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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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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,
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SecureRandom random)
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throws InvalidKeyException, InvalidAlgorithmParameterException {
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core.init(opmode, key, params, random);
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}
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/**
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* Continues a multiple-part encryption or decryption operation
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* (depending on how this cipher was initialized), processing another data
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* part.
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*
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* <p>The first <code>inputLen</code> bytes in the <code>input</code>
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* buffer, starting at <code>inputOffset</code>, are processed, and the
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* result is stored in a new buffer.
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*
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* @param input the input buffer
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* @param inputOffset the offset in <code>input</code> where the input
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* starts
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* @param inputLen the input length
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*
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* @return the new buffer with the result
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*
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*/
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protected byte[] engineUpdate(byte[] input, int inputOffset, int inputLen)
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{
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return core.update(input, inputOffset, inputLen);
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}
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/**
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* Continues a multiple-part encryption or decryption operation
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* (depending on how this cipher was initialized), processing another data
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* part.
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*
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* <p>The first <code>inputLen</code> bytes in the <code>input</code>
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* buffer, starting at <code>inputOffset</code>, are processed, and the
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* result is stored in the <code>output</code> buffer, starting at
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* <code>outputOffset</code>.
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*
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* @param input the input buffer
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* @param inputOffset the offset in <code>input</code> where the input
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* starts
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* @param inputLen the input length
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* @param output the buffer for the result
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* @param outputOffset the offset in <code>output</code> where the result
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* is stored
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*
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* @return the number of bytes stored in <code>output</code>
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*
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* @exception ShortBufferException if the given output buffer is too small
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* to hold the result
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*/
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protected int engineUpdate(byte[] input, int inputOffset, int inputLen,
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byte[] output, int outputOffset)
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throws ShortBufferException
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{
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return core.update(input, inputOffset, inputLen,
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output, outputOffset);
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}
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/**
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* Encrypts or decrypts data in a single-part operation,
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* or finishes a multiple-part operation.
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* The data is encrypted or decrypted, depending on how this cipher was
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* initialized.
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*
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* <p>The first <code>inputLen</code> bytes in the <code>input</code>
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* buffer, starting at <code>inputOffset</code>, and any input bytes that
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* may have been buffered during a previous <code>update</code> operation,
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* are processed, with padding (if requested) being applied.
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* The result is stored in a new buffer.
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*
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* <p>The cipher is reset to its initial state (uninitialized) after this
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* call.
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*
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* @param input the input buffer
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* @param inputOffset the offset in <code>input</code> where the input
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* starts
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* @param inputLen the input length
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*
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* @return the new buffer with the result
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*
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* @exception IllegalBlockSizeException if this cipher is a block cipher,
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* no padding has been requested (only in encryption mode), and the total
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* input length of the data processed by this cipher is not a multiple of
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* block size
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* @exception BadPaddingException if decrypting and padding is chosen,
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* but the last input data does not have proper padding bytes.
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*/
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protected byte[] engineDoFinal(byte[] input, int inputOffset, int inputLen)
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throws IllegalBlockSizeException, BadPaddingException
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{
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return core.doFinal(input, inputOffset, inputLen);
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}
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/**
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* Encrypts or decrypts data in a single-part operation,
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* or finishes a multiple-part operation.
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* The data is encrypted or decrypted, depending on how this cipher was
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* initialized.
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*
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* <p>The first <code>inputLen</code> bytes in the <code>input</code>
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* buffer, starting at <code>inputOffset</code>, and any input bytes that
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* may have been buffered during a previous <code>update</code> operation,
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* are processed, with padding (if requested) being applied.
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* The result is stored in the <code>output</code> buffer, starting at
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* <code>outputOffset</code>.
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*
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* <p>The cipher is reset to its initial state (uninitialized) after this
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* call.
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*
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* @param input the input buffer
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* @param inputOffset the offset in <code>input</code> where the input
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* starts
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* @param inputLen the input length
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* @param output the buffer for the result
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* @param outputOffset the offset in <code>output</code> where the result
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* is stored
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*
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* @return the number of bytes stored in <code>output</code>
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*
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* @exception IllegalBlockSizeException if this cipher is a block cipher,
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* no padding has been requested (only in encryption mode), and the total
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* input length of the data processed by this cipher is not a multiple of
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* block size
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* @exception ShortBufferException if the given output buffer is too small
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* to hold the result
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* @exception BadPaddingException if decrypting and padding is chosen,
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* but the last input data does not have proper padding bytes.
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*/
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protected int engineDoFinal(byte[] input, int inputOffset, int inputLen,
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byte[] output, int outputOffset)
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throws ShortBufferException, IllegalBlockSizeException,
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BadPaddingException
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{
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return core.doFinal(input, inputOffset, inputLen,
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output, outputOffset);
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}
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/**
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* Returns the key size of the given key object.
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*
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* @param key the key object.
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*
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* @return the key size of the given key object.
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*
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* @exception InvalidKeyException if <code>key</code> is invalid.
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*/
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protected int engineGetKeySize(Key key) throws InvalidKeyException {
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// Always returns 56 since the encryption key
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// is a DES key.
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return 56;
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}
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/**
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* Wrap a key.
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*
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* @param key the key to be wrapped.
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*
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* @return the wrapped key.
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*
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* @exception IllegalBlockSizeException if this cipher is a block
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* cipher, no padding has been requested, and the length of the
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* encoding of the key to be wrapped is not a
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* multiple of the block size.
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*
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* @exception InvalidKeyException if it is impossible or unsafe to
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* wrap the key with this cipher (e.g., a hardware protected key is
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* being passed to a software only cipher).
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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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/**
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* Unwrap a previously wrapped key.
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*
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* @param wrappedKey the key to be unwrapped.
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*
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* @param wrappedKeyAlgorithm the algorithm the wrapped key is for.
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*
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* @param wrappedKeyType the type of the wrapped key.
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* This is one of <code>Cipher.SECRET_KEY</code>,
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* <code>Cipher.PRIVATE_KEY</code>, or <code>Cipher.PUBLIC_KEY</code>.
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*
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* @return the unwrapped key.
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*
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* @exception NoSuchAlgorithmException if no installed providers
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* can create keys of type <code>wrappedKeyType</code> for the
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* <code>wrappedKeyAlgorithm</code>.
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*
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* @exception InvalidKeyException if <code>wrappedKey</code> does not
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* represent a wrapped key of type <code>wrappedKeyType</code> for
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* the <code>wrappedKeyAlgorithm</code>.
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*/
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protected Key engineUnwrap(byte[] wrappedKey,
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String wrappedKeyAlgorithm,
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int wrappedKeyType)
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throws InvalidKeyException, NoSuchAlgorithmException {
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byte[] encodedKey;
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return core.unwrap(wrappedKey, wrappedKeyAlgorithm,
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wrappedKeyType);
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}
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}
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