author | martin |
Tue, 15 Sep 2015 21:56:04 -0700 | |
changeset 32649 | 2ee9017c7597 |
parent 27804 | 4659e70271c4 |
child 35279 | 5afd2941dfb7 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.crypto.provider; |
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import java.security.*; |
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import java.security.spec.AlgorithmParameterSpec; |
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import javax.crypto.*; |
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import javax.crypto.spec.SecretKeySpec; |
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import sun.security.internal.spec.TlsRsaPremasterSecretParameterSpec; |
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/** |
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* KeyGenerator implementation for the SSL/TLS RSA premaster secret. |
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* |
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* @author Andreas Sterbenz |
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* @since 1.6 |
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*/ |
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public final class TlsRsaPremasterSecretGenerator extends KeyGeneratorSpi { |
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private static final String MSG = "TlsRsaPremasterSecretGenerator must be " |
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+ "initialized using a TlsRsaPremasterSecretParameterSpec"; |
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@SuppressWarnings("deprecation") |
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private TlsRsaPremasterSecretParameterSpec spec; |
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private SecureRandom random; |
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public TlsRsaPremasterSecretGenerator() { |
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} |
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protected void engineInit(SecureRandom random) { |
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throw new InvalidParameterException(MSG); |
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} |
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@SuppressWarnings("deprecation") |
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protected void engineInit(AlgorithmParameterSpec params, |
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SecureRandom random) throws InvalidAlgorithmParameterException { |
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if (!(params instanceof TlsRsaPremasterSecretParameterSpec)) { |
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throw new InvalidAlgorithmParameterException(MSG); |
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} |
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this.spec = (TlsRsaPremasterSecretParameterSpec)params; |
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this.random = random; |
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} |
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protected void engineInit(int keysize, SecureRandom random) { |
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throw new InvalidParameterException(MSG); |
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} |
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// Only can be used in client side to generate TLS RSA premaster secret. |
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protected SecretKey engineGenerateKey() { |
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if (spec == null) { |
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throw new IllegalStateException( |
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"TlsRsaPremasterSecretGenerator must be initialized"); |
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} |
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if (random == null) { |
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random = new SecureRandom(); |
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} |
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byte[] b = new byte[48]; |
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random.nextBytes(b); |
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b[0] = (byte)spec.getMajorVersion(); |
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b[1] = (byte)spec.getMinorVersion(); |
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return new SecretKeySpec(b, "TlsRsaPremasterSecret"); |
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} |
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} |