/****************************************************************************
* 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.common.tlv;
/**
*
* @author Tobias Wich <tobias.wich@ecsec.de>
*/
public enum TagClass {
UNIVERSAL((byte)0), APPLICATION((byte)1), CONTEXT((byte)2), PRIVATE((byte)3);
public final byte num;
private TagClass(byte num) {
this.num = num;
}
public static TagClass getTagClass(byte octet) {
byte classByte = (byte) ((octet >> 6) & 0x03);
switch (classByte) {
case 0: return UNIVERSAL;
case 1: return APPLICATION;
case 2: return CONTEXT;
case 3: return PRIVATE;
default: return null; // what possible values are there in 2 bits?!?
}
}
}