001 /* DSAPublicKeySpec.java --- DSA Public Key Specificaton class 002 Copyright (C) 1999, 2004 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 039 package java.security.spec; 040 import java.math.BigInteger; 041 042 /** 043 DSA Public Key class Specification. Used to maintain the DSA 044 Public Keys. 045 046 @since JDK 1.2 047 048 @author Mark Benvenuto 049 */ 050 public class DSAPublicKeySpec implements KeySpec 051 { 052 private BigInteger y = null; 053 private BigInteger p = null; 054 private BigInteger q = null; 055 private BigInteger g = null; 056 057 /** 058 Constructs a new DSAPublicKeySpec with the specified y, p, q, and g. 059 060 @param y the public key 061 @param p the prime 062 @param q the sub-prime 063 @param g the base 064 */ 065 public DSAPublicKeySpec(BigInteger y, BigInteger p, BigInteger q, BigInteger g) 066 { 067 this.y = y; 068 this.p = p; 069 this.q = q; 070 this.g = g; 071 } 072 073 /** 074 Returns public key y for the DSA algorithm. 075 076 @return Returns the requested BigInteger 077 */ 078 public BigInteger getY() 079 { 080 return this.y; 081 } 082 083 /** 084 Returns p for the DSA algorithm. 085 086 @return Returns the requested BigInteger 087 */ 088 public BigInteger getP() 089 { 090 return this.p; 091 } 092 093 /** 094 Returns p for the DSA algorithm. 095 096 @return Returns the requested BigInteger 097 */ 098 public BigInteger getQ() 099 { 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 }