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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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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.
Author:
 Andreas Sterbenz
Since:
  1.6/**
 * 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 {

    @Override
    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();
    }

    @Override
    int messageLength() {
        return encodedPoint.length + 1;
    }

    @Override
    void send(HandshakeOutStream s) throws IOException {
        s.putBytes8(encodedPoint);
    }

    @Override
    void print(PrintStream s) throws IOException {
        s.println("*** ECDHClientKeyExchange");

        if (debug != null && Debug.isOn("verbose")) {
            Debug.println(s, "ECDH Public value", encodedPoint);
        }
    }
}