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/* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * 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. */ package sun.security.internal.spec; import java.security.spec.AlgorithmParameterSpec; import javax.crypto.SecretKey; /** * Parameters for SSL/TLS master secret generation. * This class encapsulates the information necessary to calculate a SSL/TLS * master secret from the premaster secret and other parameters. * It is used to initialize KeyGenerators of the type "TlsMasterSecret". * * <p>Instances of this class are immutable. * * @since   1.6 * @author  Andreas Sterbenz * @deprecated Sun JDK internal use only --- WILL BE REMOVED in a future * release. */@Deprecatedpublic class TlsMasterSecretParameterSpec implements AlgorithmParameterSpec {     private final SecretKey premasterSecret;    private final int majorVersion, minorVersion;    private final byte[] clientRandom, serverRandom;    private final String prfHashAlg;    private final int prfHashLength;    private final int prfBlockSize;     /**     * Constructs a new TlsMasterSecretParameterSpec.     *     * <p>The <code>getAlgorithm()</code> method of <code>premasterSecret</code>     * should return <code>"TlsRsaPremasterSecret"</code> if the key exchange     * algorithm was RSA and <code>"TlsPremasterSecret"</code> otherwise.     *     * @param premasterSecret the premaster secret     * @param majorVersion the major number of the protocol version     * @param minorVersion the minor number of the protocol version     * @param clientRandom the client's random value     * @param serverRandom the server's random value     * @param prfHashAlg the name of the TLS PRF hash algorithm to use.     *        Used only for TLS 1.2+.  TLS1.1 and earlier use a fixed PRF.     * @param prfHashLength the output length of the TLS PRF hash algorithm.     *        Used only for TLS 1.2+.     * @param prfBlockSize the input block size of the TLS PRF hash algorithm.     *        Used only for TLS 1.2+.     *     * @throws NullPointerException if premasterSecret, clientRandom,     *   or serverRandom are null     * @throws IllegalArgumentException if minorVersion or majorVersion are     *   negative or larger than 255     */    public TlsMasterSecretParameterSpec(SecretKey premasterSecret,            int majorVersion, int minorVersion,            byte[] clientRandom, byte[] serverRandom,            String prfHashAlg, int prfHashLength, int prfBlockSize) {        if (premasterSecret == null) {            throw new NullPointerException("premasterSecret must not be null");        }        this.premasterSecret = premasterSecret;        this.majorVersion = checkVersion(majorVersion);        this.minorVersion = checkVersion(minorVersion);        this.clientRandom = clientRandom.clone();        this.serverRandom = serverRandom.clone();        this.prfHashAlg = prfHashAlg;        this.prfHashLength = prfHashLength;        this.prfBlockSize = prfBlockSize;    }     static int checkVersion(int version) {        if ((version < 0) || (version > 255)) {            throw new IllegalArgumentException(                        "Version must be between 0 and 255");        }        return version;    }     /**     * Returns the premaster secret.     *     * @return the premaster secret.     */    public SecretKey getPremasterSecret() {        return premasterSecret;    }     /**     * Returns the major version number.     *     * @return the major version number.     */    public int getMajorVersion() {        return majorVersion;    }     /**     * Returns the minor version number.     *     * @return the minor version number.     */    public int getMinorVersion() {        return minorVersion;    }     /**     * Returns a copy of the client's random value.     *     * @return a copy of the client's random value.     */    public byte[] getClientRandom() {        return clientRandom.clone();    }     /**     * Returns a copy of the server's random value.     *     * @return a copy of the server's random value.     */    public byte[] getServerRandom() {        return serverRandom.clone();    }     /**     * Obtains the PRF hash algorithm to use in the PRF calculation.     *     * @return the hash algorithm.     */    public String getPRFHashAlg() {        return prfHashAlg;    }     /**     * Obtains the length of the PRF hash algorithm.     *     * @return the hash algorithm length.     */    public int getPRFHashLength() {        return prfHashLength;    }     /**     * Obtains the block size of the PRF hash algorithm.     *     * @return the hash algorithm block size.     */    public int getPRFBlockSize() {        return prfBlockSize;    }}