/*
* Adito
*
* Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package com.maverick.crypto.publickey;
import java.math.BigInteger;
import com.maverick.crypto.digests.SHA1Digest;
public class DsaPrivateKey
extends DsaKey {
protected BigInteger x;
public DsaPrivateKey(BigInteger p, BigInteger q, BigInteger g, BigInteger x) {
super(p, q, g);
this.x = x;
}
/* (non-Javadoc)
* @see com.maverick.crypto.publickey.DsaPrivateKeyInterface#getX()
*/
public BigInteger getX() {
return x;
}
/* (non-Javadoc)
* @see com.maverick.ssh.SshPrivateKey#sign(byte[])
*/
/* (non-Javadoc)
* @see com.maverick.crypto.publickey.DsaPrivateKeyInterface#sign(byte[])
*/
public byte[] sign(byte[] msg) {
SHA1Digest h = new SHA1Digest();
h.update(msg, 0, msg.length);
byte[] data = new byte[h.getDigestSize()];
h.doFinal(data, 0);
return Dsa.sign(x, p, q, g, data);
}
public boolean equals(Object obj) {
if (obj instanceof DsaPrivateKey) {
DsaPrivateKey key = (DsaPrivateKey) obj;
return x.equals(key.x)
&& p.equals(key.p)
&& q.equals(key.q)
&& g.equals(key.g);
}
return false;
}
}