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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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
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;
}
}
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