de.tsenger.animamea.asn1.PaceDomainParameterInfo.java Source code

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Here is the source code for de.tsenger.animamea.asn1.PaceDomainParameterInfo.java

Source

/**
 *  Copyright 2011, Tobias Senger
 *  
 *  This file is part of animamea.
 *
 *  Animamea 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  Animamea 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 animamea.  If not, see <http://www.gnu.org/licenses/>.
 */

package de.tsenger.animamea.asn1;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;

/**
 * @author Tobias Senger (tobias@t-senger.de)
 * 
 */
public class PaceDomainParameterInfo extends ASN1Object {

    private ASN1ObjectIdentifier protocol = null;
    private AlgorithmIdentifier domainParameter = null;
    private ASN1Integer parameterId = null;

    public PaceDomainParameterInfo(ASN1Sequence seq) {
        protocol = (ASN1ObjectIdentifier) seq.getObjectAt(0);
        domainParameter = AlgorithmIdentifier.getInstance(seq.getObjectAt(1));

        if (seq.size() > 2) {
            parameterId = (ASN1Integer) seq.getObjectAt(2);
        }
    }

    public ASN1ObjectIdentifier getProtocol() {
        return protocol;
    }

    public AlgorithmIdentifier getDomainParameter() {
        return domainParameter;
    }

    public int getParameterId() {
        if (parameterId == null)
            return -1; // optionales Feld parameterId nicht vorhanden
        else
            return parameterId.getValue().intValue();
    }

    @Override
    public String toString() {
        return "PaceDomainParameterInfo\n\tOID: " + getProtocol() + "\n\tDomainParameter: \n\t\t"
                + getDomainParameter().getAlgorithm() + "\n\t\t" + getDomainParameter().getParameters()
                + (parameterId != null ? "\n\tParameterId: " + getParameterId() + "\n" : "\n");
    }

    /**
     * The definition of PaceDomainParameterInfo is
      * <pre>
      * PaceDomainParameterInfo ::= SEQUENCE {
      *      protocol      OBJECT IDENTIFIER(,
      *                  id-PACE-DH-GM |
      *                  id-PACE-ECDH-GM |
      *                  id-PACE-DH-IM |
      *                  id-PACE-ECDH-IM),
      *      domainParameter   AlgorithmIdentifier,
      *      parameterId      INTEGER OPTIONAL
      * }
      * </pre>
     */
    @Override
    public ASN1Primitive toASN1Primitive() {
        ASN1EncodableVector v = new ASN1EncodableVector();
        v.add(protocol);
        v.add(domainParameter);
        if (parameterId != null)
            v.add(parameterId);

        return ASN1Sequence.getInstance(v);
    }
}