de.fraunhofer.fokus.openeid.ca.ChipAuthenticationDomainParameterInfo.java Source code

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Here is the source code for de.fraunhofer.fokus.openeid.ca.ChipAuthenticationDomainParameterInfo.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.ca;

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

import de.fraunhofer.fokus.openeid.pace.InvalidDomainParameter;
import de.fraunhofer.fokus.openeid.pace.StandardizedDomainParameters;

public class ChipAuthenticationDomainParameterInfo {

    private String protocolOid;
    private StandardizedDomainParameters domainParameter;
    /** optional key id */
    private int keyId;

    public ChipAuthenticationDomainParameterInfo(DERSequence chipDomainParameterInfoSequence)
            throws InvalidDomainParameter {
        DERObjectIdentifier derOid = (DERObjectIdentifier) chipDomainParameterInfoSequence.getObjectAt(0);
        protocolOid = derOid.getId();
        DERSequence algorithm = (DERSequence) chipDomainParameterInfoSequence.getObjectAt(1);
        AlgorithmIdentifier id = new AlgorithmIdentifier(algorithm);
        int domainParameterValue = ((DERInteger) id.getParameter().get(0)).getValue().intValue();
        domainParameter = StandardizedDomainParameters.getById(domainParameterValue);
        DERInteger derKeyId = (DERInteger) chipDomainParameterInfoSequence.getObjectAt(2);
        keyId = derKeyId.getValue().intValue();

    }

    /**
     * @return the protocolOid
     */
    public String getProtocolOid() {
        return protocolOid;
    }

    /**
     * @return the domainParameter
     */
    public StandardizedDomainParameters getDomainParameter() {
        return domainParameter;
    }

    /**
     * @return the keyId
     */
    public int getKeyId() {
        return keyId;
    }

}