Source for javax.crypto.interfaces.DHPublicKey

   1: /* DHPublicKey.java -- A Diffie-Hellman public key.
   2:    Copyright (C) 2004  Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package javax.crypto.interfaces;
  40: 
  41: import java.math.BigInteger;
  42: import java.security.PublicKey;
  43: 
  44: /**
  45:  * This interface marks a public key in the Diffie-Hellman key-exchange
  46:  * algorithm.
  47:  *
  48:  * <p>Implementations of Diffie-Hellman public keys should implement
  49:  * this interface. Applications that know that a particular key is a
  50:  * Diffie-Hellman public key it can be safely cast to this interface.
  51:  *
  52:  * @author Casey Marshall (csm@gnu.org)
  53:  * @since 1.4
  54:  * @see DHKey
  55:  * @see DHPrivateKey
  56:  */
  57: public interface DHPublicKey extends DHKey, PublicKey
  58: {
  59:   /** Compatible with JDK1.4. */
  60:   long serialVersionUID = -6628103563352519193L;
  61: 
  62:   /**
  63:    * Get the public value <i>y</i>.
  64:    *
  65:    * @return The public value <i>y</i>.
  66:    */
  67:   BigInteger getY();
  68: }