1 /*
2  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 
26 package java.security.spec;
27 
28 import java.math.BigInteger;
29 
30 /**
31  * This class specifies the set of parameters used with the DSA algorithm.
32  *
33  * @author Jan Luehe
34  *
35  *
36  * @see AlgorithmParameterSpec
37  *
38  * @since 1.2
39  */
40 
41 public class DSAParameterSpec implements AlgorithmParameterSpec,
42 java.security.interfaces.DSAParams {
43 
44     BigInteger p;
45     BigInteger q;
46     BigInteger g;
47 
48     /**
49      * Creates a new DSAParameterSpec with the specified parameter values.
50      *
51      * @param p the prime.
52      *
53      * @param q the sub-prime.
54      *
55      * @param g the base.
56      */
DSAParameterSpec(BigInteger p, BigInteger q, BigInteger g)57     public DSAParameterSpec(BigInteger p, BigInteger q, BigInteger g) {
58         this.p = p;
59         this.q = q;
60         this.g = g;
61     }
62 
63     /**
64      * Returns the prime {@code p}.
65      *
66      * @return the prime {@code p}.
67      */
getP()68     public BigInteger getP() {
69         return this.p;
70     }
71 
72     /**
73      * Returns the sub-prime {@code q}.
74      *
75      * @return the sub-prime {@code q}.
76      */
getQ()77     public BigInteger getQ() {
78         return this.q;
79     }
80 
81     /**
82      * Returns the base {@code g}.
83      *
84      * @return the base {@code g}.
85      */
getG()86     public BigInteger getG() {
87         return this.g;
88     }
89 }
90