1. /*

  2.  * @(#)DSAPublicKeySpec.java	1.15 00/02/02

  3.  *

  4.  * Copyright 1997-2000 Sun Microsystems, Inc. All Rights Reserved.

  5.  * 

  6.  * This software is the proprietary information of Sun Microsystems, Inc.  

  7.  * Use is subject to license terms.

  8.  * 

  9.  */

  10. 

  11. package java.security.spec;

  12. 

  13. import java.math.BigInteger;

  14. 

  15. /**

  16.  * This class specifies a DSA public key with its associated parameters.

  17.  *

  18.  * @author Jan Luehe

  19.  *

  20.  * @version 1.15, 02/02/00

  21.  *

  22.  * @see java.security.Key

  23.  * @see java.security.KeyFactory

  24.  * @see KeySpec

  25.  * @see DSAPrivateKeySpec

  26.  * @see X509EncodedKeySpec

  27.  *

  28.  * @since 1.2

  29.  */

  30. 

  31. public class DSAPublicKeySpec implements KeySpec {

  32. 

  33.     private BigInteger y;

  34.     private BigInteger p;

  35.     private BigInteger q;

  36.     private BigInteger g;

  37. 

  38.     /**

  39.      * Creates a new DSAPublicKeySpec with the specified parameter values.

  40.      * 

  41.      * @param y the public key.

  42.      * 

  43.      * @param p the prime.

  44.      * 

  45.      * @param q the sub-prime.

  46.      * 

  47.      * @param g the base.

  48.      */

  49.     public DSAPublicKeySpec(BigInteger y, BigInteger p, BigInteger q,

  50. 			    BigInteger g) {

  51. 	this.y = y;

  52. 	this.p = p;

  53. 	this.q = q;

  54. 	this.g = g;

  55.     }

  56. 

  57.     /**

  58.      * Returns the public key <code>y</code>.

  59.      *

  60.      * @return the public key <code>y</code>.

  61.      */

  62.     public BigInteger getY() {

  63. 	return this.y;

  64.     }

  65. 

  66.     /**

  67.      * Returns the prime <code>p</code>.

  68.      *

  69.      * @return the prime <code>p</code>.

  70.      */

  71.     public BigInteger getP() {

  72. 	return this.p;

  73.     }

  74. 

  75.     /**

  76.      * Returns the sub-prime <code>q</code>.

  77.      *

  78.      * @return the sub-prime <code>q</code>.

  79.      */

  80.     public BigInteger getQ() {

  81. 	return this.q;

  82.     }

  83. 

  84.     /**

  85.      * Returns the base <code>g</code>.

  86.      *

  87.      * @return the base <code>g</code>.

  88.      */

  89.     public BigInteger getG() {

  90. 	return this.g;

  91.     }

  92. }