1. /*

  2.  * @(#)ECPrivateKey.java	1.3 03/12/19

  3.  *

  4.  * Copyright 2004 Sun Microsystems, Inc. All rights reserved.

  5.  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

  6.  */

  7. package java.security.interfaces;

  8. 

  9. import java.math.BigInteger;

  10. import java.security.PrivateKey;

  11. 

  12. /**

  13.  * The interface to an elliptic curve (EC) private key.

  14.  *

  15.  * @author Valerie Peng

  16.  *

  17.  * @version 1.3, 12/19/03

  18.  *

  19.  * @see PrivateKey

  20.  * @see ECKey

  21.  *

  22.  * @since 1.5

  23.  */

  24. public interface ECPrivateKey extends PrivateKey, ECKey {

  25.    /**

  26.     * The class fingerprint that is set to indicate

  27.     * serialization compatibility.

  28.     */

  29.     static final long serialVersionUID = -7896394956925609184L;

  30. 

  31.     /**

  32.      * Returns the private value S.

  33.      * @return the private value S.

  34.      */

  35.     BigInteger getS();

  36. }