1 /*
2 * Copyright (c) 1997, 2007, 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
27 package sun.security.ssl;
28
29 import java.io.IOException;
30 import java.io.PrintStream;
31 import java.math.BigInteger;
32
33
34 /*
35 * Message used by clients to send their Diffie-Hellman public
36 * keys to servers.
37 *
38 * @author David Brownell
39 */
40 final class DHClientKeyExchange extends HandshakeMessage {
41
42 int messageType() {
43 return ht_client_key_exchange;
44 }
45
46 /*
47 * This value may be empty if it was included in the
48 * client's certificate ...
49 */
50 private byte dh_Yc[]; // 1 to 2^16 -1 bytes
51
52 BigInteger getClientPublicKey() {
53 return new BigInteger(1, dh_Yc);
54 }
55
56 /*
57 * Either pass the client's public key explicitly (because it's
58 * using DHE or DH_anon), or implicitly (the public key was in the
59 * certificate).
60 */
61 DHClientKeyExchange(BigInteger publicKey) {
62 dh_Yc = toByteArray(publicKey);
63 }
64
65 DHClientKeyExchange() {
66 dh_Yc = null;
67 }
68
69 /*
70 * Get the client's public key either explicitly or implicitly.
71 * (It's ugly to have an empty record be sent in the latter case,
72 * but that's what the protocol spec requires.)
73 */
74 DHClientKeyExchange(HandshakeInStream input) throws IOException {
75 dh_Yc = input.getBytes16();
76 }
77
78 int messageLength() {
79 if (dh_Yc == null) {
80 return 0;
81 } else {
82 return dh_Yc.length + 2;
83 }
84 }
85
86 void send(HandshakeOutStream s) throws IOException {
87 s.putBytes16(dh_Yc);
88 }
89
90 void print(PrintStream s) throws IOException {
91 s.println("*** ClientKeyExchange, DH");
92
93 if (debug != null && Debug.isOn("verbose")) {
94 Debug.println(s, "DH Public key", dh_Yc);
95 }
96 }
97 }
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1 /*
2 * Copyright (c) 1997, 2012, 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
27 package sun.security.ssl;
28
29 import java.io.IOException;
30 import java.io.PrintStream;
31 import java.math.BigInteger;
32 import javax.net.ssl.SSLHandshakeException;
33
34 /*
35 * Message used by clients to send their Diffie-Hellman public
36 * keys to servers.
37 *
38 * @author David Brownell
39 */
40 final class DHClientKeyExchange extends HandshakeMessage {
41
42 int messageType() {
43 return ht_client_key_exchange;
44 }
45
46 /*
47 * This value may be empty if it was included in the
48 * client's certificate ...
49 */
50 private byte dh_Yc[]; // 1 to 2^16 -1 bytes
51
52 BigInteger getClientPublicKey() {
53 return dh_Yc == null ? null : new BigInteger(1, dh_Yc);
54 }
55
56 /*
57 * Either pass the client's public key explicitly (because it's
58 * using DHE or DH_anon), or implicitly (the public key was in the
59 * certificate).
60 */
61 DHClientKeyExchange(BigInteger publicKey) {
62 dh_Yc = toByteArray(publicKey);
63 }
64
65 DHClientKeyExchange() {
66 dh_Yc = null;
67 }
68
69 /*
70 * Get the client's public key either explicitly or implicitly.
71 * (It's ugly to have an empty record be sent in the latter case,
72 * but that's what the protocol spec requires.)
73 */
74 DHClientKeyExchange(HandshakeInStream input) throws IOException {
75 if (input.available() >= 2) {
76 dh_Yc = input.getBytes16();
77 } else {
78 // currently, we don't support cipher suites that requires
79 // implicit public key of client.
80 throw new SSLHandshakeException(
81 "Unsupported implicit client DiffieHellman public key");
82 }
83 }
84
85 int messageLength() {
86 if (dh_Yc == null) {
87 return 0;
88 } else {
89 return dh_Yc.length + 2;
90 }
91 }
92
93 void send(HandshakeOutStream s) throws IOException {
94 if (dh_Yc != null && dh_Yc.length != 0) {
95 s.putBytes16(dh_Yc);
96 }
97 }
98
99 void print(PrintStream s) throws IOException {
100 s.println("*** ClientKeyExchange, DH");
101
102 if (debug != null && Debug.isOn("verbose")) {
103 Debug.println(s, "DH Public key", dh_Yc);
104 }
105 }
106 }
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