001/* DSAPrivateKeySpec.java --- DSA Private Key Specificaton class 002 Copyright (C) 1999, 2004 Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038 039package java.security.spec; 040import java.math.BigInteger; 041 042/** 043 DSA Private Key class Specification. Used to maintain the DSA 044 Private Keys. 045 046 @since JDK 1.2 047 048 @author Mark Benvenuto 049*/ 050public class DSAPrivateKeySpec implements KeySpec 051{ 052 private BigInteger x = null; 053 private BigInteger p = null; 054 private BigInteger q = null; 055 private BigInteger g = null; 056 057 /** 058 Constructs a new DSAPrivateKeySpec with the specified x, p, q, and g. 059 060 @param x the private key 061 @param p the prime 062 @param q the sub-prime 063 @param g the base 064 */ 065 public DSAPrivateKeySpec(BigInteger x, BigInteger p, BigInteger q, BigInteger g) 066 { 067 this.x = x; 068 this.p = p; 069 this.q = q; 070 this.g = g; 071 } 072 073 /** 074 Returns private key x for the DSA algorithm. 075 076 @return Returns the requested BigInteger 077 */ 078 public BigInteger getX() 079 { 080 return this.x; 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}