1 /*
2 * Copyright (c) 2005, 2016, 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 sun.security.pkcs11;
27
28 import java.security.*;
29 import java.security.spec.AlgorithmParameterSpec;
30
31 import javax.crypto.*;
32 import javax.crypto.spec.*;
33
34 import sun.security.internal.spec.TlsRsaPremasterSecretParameterSpec;
35
36 import static sun.security.pkcs11.TemplateManager.*;
37 import sun.security.pkcs11.wrapper.*;
38 import static sun.security.pkcs11.wrapper.PKCS11Constants.*;
39
40 /**
41 * KeyGenerator for the SSL/TLS RSA premaster secret.
42 *
43 * @author Andreas Sterbenz
44 * @since 1.6
45 */
46 final class P11TlsRsaPremasterSecretGenerator extends KeyGeneratorSpi {
47
48 private final static String MSG = "TlsRsaPremasterSecretGenerator must be "
49 + "initialized using a TlsRsaPremasterSecretParameterSpec";
50
51 // token instance
52 private final Token token;
53
54 // algorithm name
55 private final String algorithm;
56
57 // mechanism id
58 private long mechanism;
59
60 @SuppressWarnings("deprecation")
61 private TlsRsaPremasterSecretParameterSpec spec;
62
63 // whether SSLv3 is supported
64 private final boolean supportSSLv3;
65
66 P11TlsRsaPremasterSecretGenerator(Token token, String algorithm, long mechanism)
67 throws PKCS11Exception {
68 super();
69 this.token = token;
70 this.algorithm = algorithm;
71 this.mechanism = mechanism;
72
73 // Given the current lookup order specified in SunPKCS11.java,
74 // if CKM_SSL3_PRE_MASTER_KEY_GEN is not used to construct this object,
75 // it means that this mech is disabled or unsupported.
76 this.supportSSLv3 = (mechanism == CKM_SSL3_PRE_MASTER_KEY_GEN);
77 }
78
79 protected void engineInit(SecureRandom random) {
80 throw new InvalidParameterException(MSG);
81 }
82
83 @SuppressWarnings("deprecation")
84 protected void engineInit(AlgorithmParameterSpec params,
85 SecureRandom random) throws InvalidAlgorithmParameterException {
86 if (!(params instanceof TlsRsaPremasterSecretParameterSpec)) {
87 throw new InvalidAlgorithmParameterException(MSG);
88 }
89
90 TlsRsaPremasterSecretParameterSpec spec =
91 (TlsRsaPremasterSecretParameterSpec) params;
92
93 int version = (spec.getMajorVersion() << 8) | spec.getMinorVersion();
94
95 if ((version == 0x0300 && !supportSSLv3) || (version < 0x0300) ||
96 (version > 0x0302)) {
97 throw new InvalidAlgorithmParameterException
98 ("Only" + (supportSSLv3? " SSL 3.0,": "") +
99 " TLS 1.0, and TLS 1.1 are supported (0x" +
100 Integer.toHexString(version) + ")");
101 }
102 this.spec = spec;
103 }
104
105 protected void engineInit(int keysize, SecureRandom random) {
106 throw new InvalidParameterException(MSG);
107 }
108
109 // Only can be used in client side to generate TLS RSA premaster secret.
110 protected SecretKey engineGenerateKey() {
111 if (spec == null) {
112 throw new IllegalStateException
113 ("TlsRsaPremasterSecretGenerator must be initialized");
114 }
115
116 CK_VERSION version = new CK_VERSION(
117 spec.getMajorVersion(), spec.getMinorVersion());
118 Session session = null;
119 try {
120 session = token.getObjSession();
121 CK_ATTRIBUTE[] attributes = token.getAttributes(
122 O_GENERATE, CKO_SECRET_KEY,
123 CKK_GENERIC_SECRET, new CK_ATTRIBUTE[0]);
124 long keyID = token.p11.C_GenerateKey(session.id(),
125 new CK_MECHANISM(mechanism, version), attributes);
126 SecretKey key = P11Key.secretKey(session,
127 keyID, "TlsRsaPremasterSecret", 48 << 3, attributes, true);
128 return key;
129 } catch (PKCS11Exception e) {
130 throw new ProviderException(
131 "Could not generate premaster secret", e);
132 } finally {
133 token.releaseSession(session);
134 }
135 }
136
137 }
--- EOF ---