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/* * 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);        }    }}