1 /* 2 * Copyright (c) 1996, 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.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 * @author Benjamin Renaud 40 * @author Josh Bloch 41 */ 42 public interface DSAParams { 43 44 /** 45 * Returns the prime, {@code p}. 46 * 47 * @return the prime, {@code p}. 48 */ 49 public BigInteger getP(); 50 51 /** 52 * Returns the subprime, {@code q}. 53 * 54 * @return the subprime, {@code q}. 55 */ 56 public BigInteger getQ(); 57 58 /** 59 * Returns the base, {@code g}. 60 * 61 * @return the base, {@code g}. 62 */ 63 public BigInteger getG(); 64 } 65
