/****************************************************************************
* Copyright (C) 2012 ecsec GmbH.
* All rights reserved.
* Contact: ecsec GmbH (info@ecsec.de)
*
* This file is part of the Open eCard App.
*
* GNU General Public License Usage
* This file may be used under the terms of the GNU General Public
* License version 3.0 as published by the Free Software Foundation
* and appearing in the file LICENSE.GPL included in the packaging of
* this file. Please review the following information to ensure the
* GNU General Public License version 3.0 requirements will be met:
* http://www.gnu.org/copyleft/gpl.html.
*
* Other Usage
* Alternatively, this file may be used in accordance with the terms
* and conditions contained in a signed written agreement between
* you and ecsec GmbH.
*
***************************************************************************/
package org.openecard.crypto.common.asn1.eac;
import org.openecard.bouncycastle.asn1.ASN1Integer;
import org.openecard.bouncycastle.asn1.ASN1Sequence;
import org.openecard.crypto.common.asn1.eac.oid.TAObjectIdentifier;
/**
*
* @author Moritz Horsch <horsch@cdc.informatik.tu-darmstadt.de>
*/
public final class TAInfo extends SecurityInfo {
private String protocol;
private int version;
private FileID efCVCA;
private static final String[] protocols = new String[] {
TAObjectIdentifier.id_TA_ECDSA_SHA_1,
TAObjectIdentifier.id_TA_ECDSA_SHA_224,
TAObjectIdentifier.id_TA_ECDSA_SHA_256,
TAObjectIdentifier.id_TA_ECDSA_SHA_384,
TAObjectIdentifier.id_TA_ECDSA_SHA_512,
TAObjectIdentifier.id_TA_RSA_PSS_SHA_1,
TAObjectIdentifier.id_TA_RSA_PSS_SHA_256,
TAObjectIdentifier.id_TA_RSA_PSS_SHA_512,
TAObjectIdentifier.id_TA_RSA_v1_5_SHA_1,
TAObjectIdentifier.id_TA_RSA_v1_5_SHA_256,
TAObjectIdentifier.id_TA_RSA_v1_5_SHA_512
};
/**
* Creates a new TAInfo object. See TR-03110 Section A.1.1.3.
*
* @param seq ANS1 encoded sequence
*/
public TAInfo(ASN1Sequence seq) {
super(seq);
protocol = getIdentifier();
version = ((ASN1Integer) getRequiredData()).getValue().intValue();
if (seq.size() == 3) {
efCVCA = FileID.getInstance(getOptionalData());
}
}
/**
* Checks if the protocol identifier indicates ECDSA.
*
* @return True if ECDSA is used, otherwise false
*/
public boolean isECDSA() {
if (protocol.startsWith(TAObjectIdentifier.id_TA_ECDSA)) {
return true;
}
return false;
}
/**
* Checks if the protocol identifier indicates elliptic curve RSA.
*
* @return True if elliptic curve RSA is used, otherwise false
*/
public boolean isRSA() {
if (protocol.startsWith(TAObjectIdentifier.id_TA_RSA)) {
return true;
}
return false;
}
/**
* Returns the object identifier of the protocol.
*
* @return Protocol
*/
public String getProtocol() {
return protocol;
}
/**
* Returns the version of the protocol.
*
* @return version
*/
public int getVersion() {
return version;
}
/**
* Returns the EF.CVCA.
*
* @return EF.CVCA
*/
public FileID getEFCVCA() {
return efCVCA;
}
/**
* Compares the object identifier.
*
* @param oid Object identifier
* @return true if o is a TA object identifier; false otherwise
*/
public static boolean isObjectIdentifier(String oid) {
for (int i = 0; i < protocols.length; i++) {
if (protocols[i].equals(oid)) {
return true;
}
}
return false;
}
}