author | weijun |
Thu, 13 Dec 2018 11:16:33 +0800 | |
changeset 52996 | 2457d862a646 |
parent 51504 | src/java.base/share/classes/com/sun/crypto/provider/HmacPKCS12PBESHA1.java@c9a3e3cac9c7 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2018, 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.util.Arrays; |
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import javax.crypto.SecretKey; |
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import javax.crypto.spec.SecretKeySpec; |
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import javax.crypto.spec.PBEParameterSpec; |
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import java.security.*; |
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import java.security.spec.*; |
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/** |
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* This is an implementation of the HMAC algorithms as defined |
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* in PKCS#12 v1.1 standard (see RFC 7292 Appendix B.4). |
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* |
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* @author Valerie Peng |
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*/ |
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abstract class HmacPKCS12PBECore extends HmacCore { |
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public static final class HmacPKCS12PBE_SHA1 extends HmacPKCS12PBECore { |
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public HmacPKCS12PBE_SHA1() throws NoSuchAlgorithmException { |
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super("SHA1", 64); |
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} |
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} |
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public static final class HmacPKCS12PBE_SHA224 extends HmacPKCS12PBECore { |
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public HmacPKCS12PBE_SHA224() throws NoSuchAlgorithmException { |
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super("SHA-224", 64); |
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} |
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} |
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public static final class HmacPKCS12PBE_SHA256 extends HmacPKCS12PBECore { |
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public HmacPKCS12PBE_SHA256() throws NoSuchAlgorithmException { |
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super("SHA-256", 64); |
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} |
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} |
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public static final class HmacPKCS12PBE_SHA384 extends HmacPKCS12PBECore { |
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public HmacPKCS12PBE_SHA384() throws NoSuchAlgorithmException { |
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super("SHA-384", 128); |
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} |
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} |
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public static final class HmacPKCS12PBE_SHA512 extends HmacPKCS12PBECore { |
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public HmacPKCS12PBE_SHA512() throws NoSuchAlgorithmException { |
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super("SHA-512", 128); |
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} |
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} |
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public static final class HmacPKCS12PBE_SHA512_224 extends HmacPKCS12PBECore { |
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public HmacPKCS12PBE_SHA512_224() throws NoSuchAlgorithmException { |
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super("SHA-512/224", 128); |
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} |
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} |
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public static final class HmacPKCS12PBE_SHA512_256 extends HmacPKCS12PBECore { |
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public HmacPKCS12PBE_SHA512_256() throws NoSuchAlgorithmException { |
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super("SHA-512/256", 128); |
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} |
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} |
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private final String algorithm; |
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private final int bl; |
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/** |
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* Standard constructor, creates a new HmacSHA1 instance. |
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*/ |
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public HmacPKCS12PBECore(String algorithm, int bl) throws NoSuchAlgorithmException { |
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super(algorithm, bl); |
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this.algorithm = algorithm; |
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this.bl = bl; |
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} |
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/** |
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* Initializes the HMAC with the given secret key and algorithm parameters. |
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* @param key the secret key. |
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* @param params the algorithm parameters. |
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* |
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* @exception InvalidKeyException if the given key is inappropriate for |
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* initializing this MAC. |
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* @exception InvalidAlgorithmParameterException if the given algorithm |
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* parameters are inappropriate for this MAC. |
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*/ |
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protected void engineInit(Key key, AlgorithmParameterSpec params) |
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throws InvalidKeyException, InvalidAlgorithmParameterException { |
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char[] passwdChars; |
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byte[] salt = null; |
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int iCount = 0; |
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if (key instanceof javax.crypto.interfaces.PBEKey) { |
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javax.crypto.interfaces.PBEKey pbeKey = |
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(javax.crypto.interfaces.PBEKey) key; |
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passwdChars = pbeKey.getPassword(); |
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salt = pbeKey.getSalt(); // maybe null if unspecified |
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iCount = pbeKey.getIterationCount(); // maybe 0 if unspecified |
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} else if (key instanceof SecretKey) { |
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byte[] passwdBytes; |
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if (!(key.getAlgorithm().regionMatches(true, 0, "PBE", 0, 3)) || |
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(passwdBytes = key.getEncoded()) == null) { |
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throw new InvalidKeyException("Missing password"); |
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} |
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passwdChars = new char[passwdBytes.length]; |
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for (int i=0; i<passwdChars.length; i++) { |
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passwdChars[i] = (char) (passwdBytes[i] & 0x7f); |
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} |
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Arrays.fill(passwdBytes, (byte)0x00); |
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} else { |
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throw new InvalidKeyException("SecretKey of PBE type required"); |
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} |
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byte[] derivedKey; |
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try { |
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if (params == null) { |
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// should not auto-generate default values since current |
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// javax.crypto.Mac api does not have any method for caller to |
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// retrieve the generated defaults. |
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if ((salt == null) || (iCount == 0)) { |
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throw new InvalidAlgorithmParameterException |
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("PBEParameterSpec required for salt and iteration count"); |
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} |
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} else if (!(params instanceof PBEParameterSpec)) { |
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throw new InvalidAlgorithmParameterException |
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("PBEParameterSpec type required"); |
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} else { |
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PBEParameterSpec pbeParams = (PBEParameterSpec) params; |
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// make sure the parameter values are consistent |
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if (salt != null) { |
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if (!Arrays.equals(salt, pbeParams.getSalt())) { |
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throw new InvalidAlgorithmParameterException |
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("Inconsistent value of salt between key and params"); |
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} |
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} else { |
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salt = pbeParams.getSalt(); |
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} |
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if (iCount != 0) { |
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if (iCount != pbeParams.getIterationCount()) { |
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throw new InvalidAlgorithmParameterException |
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("Different iteration count between key and params"); |
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} |
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} else { |
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iCount = pbeParams.getIterationCount(); |
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} |
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} |
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// For security purpose, we need to enforce a minimum length |
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// for salt; just require the minimum salt length to be 8-byte |
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// which is what PKCS#5 recommends and openssl does. |
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if (salt.length < 8) { |
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throw new InvalidAlgorithmParameterException |
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("Salt must be at least 8 bytes long"); |
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} |
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if (iCount <= 0) { |
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throw new InvalidAlgorithmParameterException |
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("IterationCount must be a positive number"); |
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} |
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derivedKey = PKCS12PBECipherCore.derive(passwdChars, salt, |
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iCount, engineGetMacLength(), PKCS12PBECipherCore.MAC_KEY, |
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algorithm, bl); |
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} finally { |
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183 |
Arrays.fill(passwdChars, '\0'); |
2 | 184 |
} |
185 |
SecretKey cipherKey = new SecretKeySpec(derivedKey, "HmacSHA1"); |
|
12685 | 186 |
super.engineInit(cipherKey, null); |
2 | 187 |
} |
188 |
} |