Showing the changes to java/pkg/com/sun/crypto/provider/TlsMasterSecretGenerator.java (1 of 18352 files). Show all
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| 1 | /* | ||
| 2 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package com.sun.crypto.provider; | ||
| 27 | |||
| 28 | import java.security.*; | ||
| 29 | import java.security.spec.AlgorithmParameterSpec; | ||
| 30 | |||
| 31 | import javax.crypto.*; | ||
| 32 | |||
| 33 | import sun.security.internal.interfaces.TlsMasterSecret; | ||
| 34 | import sun.security.internal.spec.TlsMasterSecretParameterSpec; | ||
| 35 | |||
| 36 | import static com.sun.crypto.provider.TlsPrfGenerator.*; | ||
| 37 | |||
| 38 | /** | ||
| 39 | * KeyGenerator implementation for the SSL/TLS master secret derivation. | ||
| 40 | * | ||
| 41 | * @author Andreas Sterbenz | ||
| 42 | * @since 1.6 | ||
| 43 | */ | ||
| 44 | public final class TlsMasterSecretGenerator extends KeyGeneratorSpi { | ||
| 45 | |||
| 46 | private final static String MSG = "TlsMasterSecretGenerator must be " | ||
| 47 | + "initialized using a TlsMasterSecretParameterSpec"; | ||
| 48 | |||
| 49 | private TlsMasterSecretParameterSpec spec; | ||
| 50 | |||
| 51 | private int protocolVersion; | ||
| 52 | |||
| 53 | public TlsMasterSecretGenerator() { | ||
| 54 | } | ||
| 55 | |||
| 56 | protected void engineInit(SecureRandom random) { | ||
| 57 | throw new InvalidParameterException(MSG); | ||
| 58 | } | ||
| 59 | |||
| 60 | protected void engineInit(AlgorithmParameterSpec params, | ||
| 61 | SecureRandom random) throws InvalidAlgorithmParameterException { | ||
| 62 | if (params instanceof TlsMasterSecretParameterSpec == false) { | ||
| 63 | throw new InvalidAlgorithmParameterException(MSG); | ||
| 64 | } | ||
| 65 | this.spec = (TlsMasterSecretParameterSpec)params; | ||
| 66 | if ("RAW".equals(spec.getPremasterSecret().getFormat()) == false) { | ||
| 67 | throw new InvalidAlgorithmParameterException( | ||
| 68 | "Key format must be RAW"); | ||
| 69 | } | ||
| 70 | protocolVersion = (spec.getMajorVersion() << 8) | ||
| 71 | | spec.getMinorVersion(); | ||
| 72 | if ((protocolVersion < 0x0300) || (protocolVersion > 0x0303)) { | ||
| 73 | throw new InvalidAlgorithmParameterException( | ||
| 74 | "Only SSL 3.0, TLS 1.0/1.1/1.2 supported"); | ||
| 75 | } | ||
| 76 | } | ||
| 77 | |||
| 78 | protected void engineInit(int keysize, SecureRandom random) { | ||
| 79 | throw new InvalidParameterException(MSG); | ||
| 80 | } | ||
| 81 | |||
| 82 | protected SecretKey engineGenerateKey() { | ||
| 83 | if (spec == null) { | ||
| 84 | throw new IllegalStateException( | ||
| 85 | "TlsMasterSecretGenerator must be initialized"); | ||
| 86 | } | ||
| 87 | SecretKey premasterKey = spec.getPremasterSecret(); | ||
| 88 | byte[] premaster = premasterKey.getEncoded(); | ||
| 89 | |||
| 90 | int premasterMajor, premasterMinor; | ||
| 91 | if (premasterKey.getAlgorithm().equals("TlsRsaPremasterSecret")) { | ||
| 92 | // RSA | ||
| 93 | premasterMajor = premaster[0] & 0xff; | ||
| 94 | premasterMinor = premaster[1] & 0xff; | ||
| 95 | } else { | ||
| 96 | // DH, KRB5, others | ||
| 97 | premasterMajor = -1; | ||
| 98 | premasterMinor = -1; | ||
| 99 | } | ||
| 100 | |||
| 101 | try { | ||
| 102 | byte[] master; | ||
| 103 | byte[] clientRandom = spec.getClientRandom(); | ||
| 104 | byte[] serverRandom = spec.getServerRandom(); | ||
| 105 | |||
| 106 | if (protocolVersion >= 0x0301) { | ||
| 107 | byte[] seed = concat(clientRandom, serverRandom); | ||
| 108 | master = ((protocolVersion >= 0x0303) ? | ||
| 109 | doTLS12PRF(premaster, LABEL_MASTER_SECRET, seed, 48, | ||
| 110 | spec.getPRFHashAlg(), spec.getPRFHashLength(), | ||
| 111 | spec.getPRFBlockSize()) : | ||
| 112 | doTLS10PRF(premaster, LABEL_MASTER_SECRET, seed, 48)); | ||
| 113 | } else { | ||
| 114 | master = new byte[48]; | ||
| 115 | MessageDigest md5 = MessageDigest.getInstance("MD5"); | ||
| 116 | MessageDigest sha = MessageDigest.getInstance("SHA"); | ||
| 117 | |||
| 118 | byte[] tmp = new byte[20]; | ||
| 119 | for (int i = 0; i < 3; i++) { | ||
| 120 | sha.update(SSL3_CONST[i]); | ||
| 121 | sha.update(premaster); | ||
| 122 | sha.update(clientRandom); | ||
| 123 | sha.update(serverRandom); | ||
| 124 | sha.digest(tmp, 0, 20); | ||
| 125 | |||
| 126 | md5.update(premaster); | ||
| 127 | md5.update(tmp); | ||
| 128 | md5.digest(master, i << 4, 16); | ||
| 129 | } | ||
| 130 | |||
| 131 | } | ||
| 132 | |||
| 133 | return new TlsMasterSecretKey(master, premasterMajor, | ||
| 134 | premasterMinor); | ||
| 135 | } catch (NoSuchAlgorithmException e) { | ||
| 136 | throw new ProviderException(e); | ||
| 137 | } catch (DigestException e) { | ||
| 138 | throw new ProviderException(e); | ||
| 139 | } | ||
| 140 | } | ||
| 141 | |||
| 142 | private static final class TlsMasterSecretKey implements TlsMasterSecret { | ||
| 143 | |||
| 144 | private byte[] key; | ||
| 145 | private final int majorVersion, minorVersion; | ||
| 146 | |||
| 147 | TlsMasterSecretKey(byte[] key, int majorVersion, int minorVersion) { | ||
| 148 | this.key = key; | ||
| 149 | this.majorVersion = majorVersion; | ||
| 150 | this.minorVersion = minorVersion; | ||
| 151 | } | ||
| 152 | |||
| 153 | public int getMajorVersion() { | ||
| 154 | return majorVersion; | ||
| 155 | } | ||
| 156 | |||
| 157 | public int getMinorVersion() { | ||
| 158 | return minorVersion; | ||
| 159 | } | ||
| 160 | |||
| 161 | public String getAlgorithm() { | ||
| 162 | return "TlsMasterSecret"; | ||
| 163 | } | ||
| 164 | |||
| 165 | public String getFormat() { | ||
| 166 | return "RAW"; | ||
| 167 | } | ||
| 168 | |||
| 169 | public byte[] getEncoded() { | ||
| 170 | return key.clone(); | ||
| 171 | } | ||
| 172 | |||
| 173 | } | ||
| 174 | |||
| 175 | } | ||