/***********************************************************
* $Id: PKCS11NeDSAPrivateKey.java 33 2007-01-26 19:37:44Z wolfgang.glas $
*
* PKCS11 provider of the OpenSC project http://www.opensc-project.org
*
* Copyright (C) 2002-2006 ev-i Informationstechnologie GmbH
*
* Created: Jul 29, 2006
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
***********************************************************/
package org.opensc.pkcs11.wrap;
import java.math.BigInteger;
import java.security.interfaces.DSAKey;
import java.security.interfaces.DSAParams;
import java.security.spec.DSAParameterSpec;
/**
* @author wglas
*
* This class represents a non-extractable RSA private key stored on the token.
*/
public class PKCS11NeDSAPrivateKey extends PKCS11PrivateKey implements DSAKey
{
/**
* To be changed upon class layout change.
*/
private static final long serialVersionUID = 6213036895770588731L;
DSAParams params;
/**
* @param session The PKCS#11 session to which we belong.
* @param handle The object handle for this key.
* @throws PKCS11Exception Upon errors when retrieving the data from the token.
*/
public PKCS11NeDSAPrivateKey(PKCS11Session session, long handle) throws PKCS11Exception
{
super(session, CKK_DSA, false, handle);
byte [] raw_x;
raw_x = getRawAttribute(PKCS11Attribute.CKA_PRIME);
BigInteger p = new BigInteger(raw_x);
raw_x = getRawAttribute(PKCS11Attribute.CKA_SUBPRIME);
BigInteger q = new BigInteger(raw_x);
raw_x = getRawAttribute(PKCS11Attribute.CKA_BASE);
BigInteger g = new BigInteger(raw_x);
this.params = new DSAParameterSpec(p,q,g);
}
/* (non-Javadoc)
* @see java.security.interfaces.DSAKey#getParams()
*/
public DSAParams getParams()
{
return this.params;
}
}