/*
* jPOS Project [http://jpos.org]
* Copyright (C) 2000-2017 jPOS Software SRL
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.jpos.security;
/**
* Indicate method for the derivation by the issuer of a 16-byte
* ICC Master Key used for Application Cryptogram generation,
* issuer authentication, and secure messaging.
* <br>
* These methods take as input the PAN and PAN Sequence Number,
* plus a 16-byte Issuer Master Key IMK,
* and produce the 16-byte ICC Master Key MK
* <br>
* Described in EMV v4.2 Book 2, Annex A1.4 Master Key Derivation
*
* @author Robert Demski
* @version $Revision$ $Date$
*/
public enum MKDMethod {
/**
* Uses PAN, PAN Sequence Number, IMK, Triple DES
* Described in EMV v4.2 Book 2, Annex A1.4.1
*/
OPTION_A
/**
* Uses PAN, PAN Sequence Number, IMK, Triple DES and SHA-1
* and decimalisation of hex digits.
* Described in EMV v4.2 Book 2, Annex A1.4.2
* NOTE: For PAN with length less or equals 16 it works as {@code OPTION_A}
*/
,OPTION_B
}