Source for java.security.spec.DSAPublicKeySpec

   1: /* DSAPublicKeySpec.java --- DSA Public Key Specificaton class
   2:    Copyright (C) 1999, 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 java.security.spec;
  40: import java.math.BigInteger;
  41: 
  42: /**
  43:         DSA Public Key class Specification. Used to maintain the DSA
  44:         Public Keys.
  45: 
  46:         @since JDK 1.2
  47: 
  48:         @author Mark Benvenuto
  49: */
  50: public class DSAPublicKeySpec implements KeySpec
  51: {
  52:   private BigInteger y = null;
  53:   private BigInteger p = null;
  54:   private BigInteger q = null;
  55:   private BigInteger g = null;
  56: 
  57:   /**
  58:      Constructs a new DSAPublicKeySpec with the specified y, p, q, and g.
  59: 
  60:      @param y the public key
  61:      @param p the prime
  62:      @param q the sub-prime
  63:      @param g the base
  64:   */
  65:   public DSAPublicKeySpec(BigInteger y, BigInteger p, BigInteger q, BigInteger g)
  66:   {
  67:     this.y = y;
  68:     this.p = p;
  69:     this.q = q;
  70:     this.g = g;
  71:   }
  72: 
  73:   /**
  74:      Returns public key y for the DSA algorithm.
  75: 
  76:      @return Returns the requested BigInteger
  77:   */
  78:   public BigInteger getY()
  79:   {
  80:     return this.y;
  81:   }
  82: 
  83:   /**
  84:      Returns p for the DSA algorithm.
  85: 
  86:      @return Returns the requested BigInteger
  87:   */
  88:   public BigInteger getP()
  89:   {
  90:     return this.p;
  91:   }
  92: 
  93:   /**
  94:      Returns p for the DSA algorithm.
  95: 
  96:      @return Returns the requested BigInteger
  97:   */
  98:   public BigInteger getQ()
  99:   {
 100:     return this.q;
 101:   }
 102: 
 103:   /**
 104:      Returns g for the DSA algorithm.
 105: 
 106:      @return Returns the requested BigInteger
 107:   */
 108:   public BigInteger getG()
 109:   {
 110:     return this.g;
 111:   }
 112: 
 113: }