/*
* Copyright (c) 2006, 2007, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.security.ssl;
import java.io.IOException;
import java.io.PrintStream;
import java.security.PublicKey;
import java.security.interfaces.ECPublicKey;
import java.security.spec.*;
/**
* ClientKeyExchange message for all ECDH based key exchange methods. It
* contains the client's ephemeral public value.
*
* @since 1.6
* @author Andreas Sterbenz
*/
final class ECDHClientKeyExchange extends HandshakeMessage {
int messageType() {
return ht_client_key_exchange;
}
private byte[] encodedPoint;
byte[] getEncodedPoint() {
return encodedPoint;
}
// Called by the client with its ephemeral public key.
ECDHClientKeyExchange(PublicKey publicKey) {
ECPublicKey ecKey = (ECPublicKey)publicKey;
ECPoint point = ecKey.getW();
ECParameterSpec params = ecKey.getParams();
encodedPoint = JsseJce.encodePoint(point, params.getCurve());
}
ECDHClientKeyExchange(HandshakeInStream input) throws IOException {
encodedPoint = input.getBytes8();
}
int messageLength() {
return encodedPoint.length + 1;
}
void send(HandshakeOutStream s) throws IOException {
s.putBytes8(encodedPoint);
}
void print(PrintStream s) throws IOException {
s.println("*** ECDHClientKeyExchange");
if (debug != null && Debug.isOn("verbose")) {
Debug.println(s, "ECDH Public value", encodedPoint);
}
}
}