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 | } | ||