01 /*
02 * Copyright 1996-1998 Sun Microsystems, Inc. All Rights Reserved.
03 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04 *
05 * This code is free software; you can redistribute it and/or modify it
06 * under the terms of the GNU General Public License version 2 only, as
07 * published by the Free Software Foundation. Sun designates this
08 * particular file as subject to the "Classpath" exception as provided
09 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package java.security.interfaces;
27
28 import java.math.BigInteger;
29
30 /**
31 * Interface to a DSA-specific set of key parameters, which defines a
32 * DSA <em>key family</em>. DSA (Digital Signature Algorithm) is defined
33 * in NIST's FIPS-186.
34 *
35 * @see DSAKey
36 * @see java.security.Key
37 * @see java.security.Signature
38 *
39 * @version 1.27 07/05/05
40 * @author Benjamin Renaud
41 * @author Josh Bloch
42 */
43 public interface DSAParams {
44
45 /**
46 * Returns the prime, <code>p</code>.
47 *
48 * @return the prime, <code>p</code>.
49 */
50 public BigInteger getP();
51
52 /**
53 * Returns the subprime, <code>q</code>.
54 *
55 * @return the subprime, <code>q</code>.
56 */
57 public BigInteger getQ();
58
59 /**
60 * Returns the base, <code>g</code>.
61 *
62 * @return the base, <code>g</code>.
63 */
64 public BigInteger getG();
65 }
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