Showing the changes to java/pkg/sun/security/ssl/DHClientKeyExchange.java (1 of 18352 files). Show all
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| 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 | +} | |