/*

 * Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package java.security.interfaces;

import java.math.BigInteger;

/**

 * Interface to a DSA-specific set of key parameters, which defines a

 * DSA <em>key family</em>. DSA (Digital Signature Algorithm) is defined

 * in NIST's FIPS-186.

 *

 * @see DSAKey

 * @see java.security.Key

 * @see java.security.Signature

 *

 * @author Benjamin Renaud

 * @author Josh Bloch

 * @since 1.1

 */

public interface DSAParams {

    /**

     * Returns the prime, {@code p}.

     *

     * @return the prime, {@code p}.

     */

    public BigInteger getP();

    /**

     * Returns the subprime, {@code q}.

     *

     * @return the subprime, {@code q}.

     */

    public BigInteger getQ();

    /**

     * Returns the base, {@code g}.

     *

     * @return the base, {@code g}.

     */

    public BigInteger getG();

}