001/*
002 * jPOS Project [http://jpos.org]
003 * Copyright (C) 2000-2026 jPOS Software SRL
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Affero General Public License as
007 * published by the Free Software Foundation, either version 3 of the
008 * License, or (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Affero General Public License for more details.
014 *
015 * You should have received a copy of the GNU Affero General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jpos.security;
020
021/**
022 * Indicate method for generation of the ARPC used for issuer authentication
023 * <br>
024 * Described in EMV v4.2 Book 2 section 8.2
025 * @author Robert Demski
026 * @version $Revision$ $Date$
027 */
028public enum ARPCMethod {
029
030   /**
031    * Method for the generation of an 8-byte ARPC consists of applying
032    * the Triple-DES algorithm:
033    * <li>the 8-byte ARQC
034    * <li>the 2-byte Authorisation Response Code (ARC)
035    */
036   METHOD_1
037
038   /**
039    * Method For the generation of a 4-byte ARPC consists of applying
040    * the MAC algorithm:
041    * <li>the 4-byte ARQC
042    * <li>the 4-byte binary Card Status Update (CSU)
043    * <li>the 0-8 byte binary Proprietary Authentication Data
044    */
045  ,METHOD_2
046
047}