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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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*
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package javax.crypto.spec;
import java.math.BigInteger;
/**
* This class specifies a Diffie-Hellman public key with its associated
* parameters.
*
* <p>Note that this class does not perform any validation on specified
* parameters. Thus, the specified values are returned directly even
* if they are null.
*
* @author Jan Luehe
*
* @see DHPrivateKeySpec
* @since 1.4
*/
public class DHPublicKeySpec implements java.security.spec.KeySpec {
// The public value
private BigInteger y;
// The prime modulus
private BigInteger p;
// The base generator
private BigInteger g;
/**
* Constructor that takes a public value <code>y</code>, a prime
* modulus <code>p</code>, and a base generator <code>g</code>.
* @param y public value y
* @param p prime modulus p
* @param g base generator g
*/
public DHPublicKeySpec(BigInteger y, BigInteger p, BigInteger g) {
this.y = y;
this.p = p;
this.g = g;
}
/**
* Returns the public value <code>y</code>.
*
* @return the public value <code>y</code>
*/
public BigInteger getY() {
return this.y;
}
/**
* Returns the prime modulus <code>p</code>.
*
* @return the prime modulus <code>p</code>
*/
public BigInteger getP() {
return this.p;
}
/**
* Returns the base generator <code>g</code>.
*
* @return the base generator <code>g</code>
*/
public BigInteger getG() {
return this.g;
}
}