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

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Here is the source code for de.fraunhofer.fokus.openeid.ca.ChipAuthenticationPublicKeyInfo.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.DERBitString;
import org.bouncycastle.asn1.DERInteger;
import org.bouncycastle.asn1.DERObjectIdentifier;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.util.ASN1Dump;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ChipAuthenticationPublicKeyInfo {

    private static Logger logger = LoggerFactory.getLogger(ChipAuthenticationPublicKeyInfo.class);

    protected String oid;
    protected byte[] encodedPublicKey;
    protected DERSequence algorithmIdentifier;
    protected Integer keyId;

    public ChipAuthenticationPublicKeyInfo(DERSequence chipInfoSequence) {
        DERObjectIdentifier derOid = (DERObjectIdentifier) chipInfoSequence.getObjectAt(0);
        oid = derOid.getId();

        DERSequence publicKey = (DERSequence) chipInfoSequence.getObjectAt(1);

        logger.info(ASN1Dump.dumpAsString(publicKey, true));

        algorithmIdentifier = (DERSequence) publicKey.getObjectAt(0);
        DERBitString encodedKey = (DERBitString) publicKey.getObjectAt(1);
        encodedPublicKey = encodedKey.getBytes();

        if (chipInfoSequence.size() > 2) {
            DERInteger derKeyId = (DERInteger) chipInfoSequence.getObjectAt(2);
            keyId = derKeyId.getValue().intValue();
        }

    }

    public String getOid() {
        return oid;
    }

    public byte[] getEncodedPublicKey() {
        return encodedPublicKey;
    }

    public Integer getKeyId() {
        return keyId;
    }

}