de.fraunhofer.fokus.openeid.pace.PACEInfo.java Source code

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Here is the source code for de.fraunhofer.fokus.openeid.pace.PACEInfo.java

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/*******************************************************************************
 * Implementation of the protocols PACE, Terminal Authentication and Chip 
 * Authentication (client side) with respect to the according BSI standards.
 * 
 * Copyright (C) 2013  Fraunhofer-Gesellschaft
 * 
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package de.fraunhofer.fokus.openeid.pace;

import org.bouncycastle.asn1.DERInteger;
import org.bouncycastle.asn1.DERObjectIdentifier;
import org.bouncycastle.asn1.DERSequence;

import de.fraunhofer.fokus.openeid.commands.UnsupportedProtocolException;

/**
 * 
 * Relevant information for PACE,
 * which can be read out from EF.CardAccess
 * 
 * 
 * @author "Mateusz Khalil"
 *
 */
public class PACEInfo {

    public PACEInfo(DERSequence paceInfoSequence) throws UnsupportedProtocolException, InvalidDomainParameter {
        DERObjectIdentifier derOid = (DERObjectIdentifier) paceInfoSequence.getObjectAt(0);
        protocol = PACEInfoProtocol.getProtocolByOid(derOid.getId());
        DERInteger derVersion = (DERInteger) paceInfoSequence.getObjectAt(1);
        version = derVersion.getValue().intValue();
        if (paceInfoSequence.size() == 3) { //parameterId is OPTIONAL
            DERInteger derParameter = (DERInteger) paceInfoSequence.getObjectAt(2);
            int parameterId = derParameter.getValue().intValue();
            domainParameter = StandardizedDomainParameters.getById(parameterId);
            //TODO there could be non-standardized DomainParameters defined -> @see TR-03110 A.2.1 / A.2.1.1.
        }
    }

    /** pace version */
    private int version;

    /** optional standardized domain parameter */
    private StandardizedDomainParameters domainParameter;

    /** oid defining security parameters */
    private PACEInfoProtocol protocol;

    @Override
    public String toString() {
        return "Version:" + version + "\nDomainParameter:" + domainParameter + "\nProtocolInfo"
                + protocol.toString();
    }

    public int getVersion() {
        return version;
    }

    public StandardizedDomainParameters getDomainParameter() {
        return domainParameter;
    }

    public PACEInfoProtocol getProtocol() {
        return protocol;
    }

}