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 * Copyright (c) 1997, 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

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 */

package java.security.spec;

import java.math.BigInteger;

/**

 * This class specifies a DSA public key with its associated parameters.

 *

 * @author Jan Luehe

 *

 *

 * @see java.security.Key

 * @see java.security.KeyFactory

 * @see KeySpec

 * @see DSAPrivateKeySpec

 * @see X509EncodedKeySpec

 *

 * @since 1.2

 */

public class DSAPublicKeySpec implements KeySpec {

    private BigInteger y;

    private BigInteger p;

    private BigInteger q;

    private BigInteger g;

    /**

     * Creates a new DSAPublicKeySpec with the specified parameter values.

     *

     * @param y the public key.

     *

     * @param p the prime.

     *

     * @param q the sub-prime.

     *

     * @param g the base.

     */

    public DSAPublicKeySpec(BigInteger y, BigInteger p, BigInteger q,

                            BigInteger g) {

        this.y = y;

        this.p = p;

        this.q = q;

        this.g = g;

    }

    /**

     * Returns the public key {@code y}.

     *

     * @return the public key {@code y}.

     */

    public BigInteger getY() {

        return this.y;

    }

    /**

     * Returns the prime {@code p}.

     *

     * @return the prime {@code p}.

     */

    public BigInteger getP() {

        return this.p;

    }

    /**

     * Returns the sub-prime {@code q}.

     *

     * @return the sub-prime {@code q}.

     */

    public BigInteger getQ() {

        return this.q;

    }

    /**

     * Returns the base {@code g}.

     *

     * @return the base {@code g}.

     */

    public BigInteger getG() {

        return this.g;

    }

}