/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.geronimo.crypto.asn1.pkcs;
import java.math.BigInteger;
import java.util.Enumeration;
import org.apache.geronimo.crypto.asn1.ASN1Encodable;
import org.apache.geronimo.crypto.asn1.ASN1EncodableVector;
import org.apache.geronimo.crypto.asn1.ASN1Sequence;
import org.apache.geronimo.crypto.asn1.DERInteger;
import org.apache.geronimo.crypto.asn1.DERObject;
import org.apache.geronimo.crypto.asn1.DERSequence;
public class DHParameter
extends ASN1Encodable
{
DERInteger p, g, l;
public DHParameter(
BigInteger p,
BigInteger g,
int l)
{
this.p = new DERInteger(p);
this.g = new DERInteger(g);
if (l != 0)
{
this.l = new DERInteger(l);
}
else
{
this.l = null;
}
}
public DHParameter(
ASN1Sequence seq)
{
Enumeration e = seq.getObjects();
p = (DERInteger)e.nextElement();
g = (DERInteger)e.nextElement();
if (e.hasMoreElements())
{
l = (DERInteger)e.nextElement();
}
else
{
l = null;
}
}
public BigInteger getP()
{
return p.getPositiveValue();
}
public BigInteger getG()
{
return g.getPositiveValue();
}
public BigInteger getL()
{
if (l == null)
{
return null;
}
return l.getPositiveValue();
}
public DERObject toASN1Object()
{
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(p);
v.add(g);
if (this.getL() != null)
{
v.add(l);
}
return new DERSequence(v);
}
}