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 * Block cipher modes.
023 *
024 * @author Grzegorz Wieczorek <grw1@wp.pl>
025 */
026public enum CipherMode {
027
028    /**
029     * Electronic Code Book.
030     */
031    ECB,
032
033    /**
034     * Cipher-block chaining.
035     */
036    CBC,
037
038    /**
039     * Cipher feedback, self-synchronizing with 8 bit shift register.
040     */
041    CFB8,
042
043    /**
044     * Cipher feedback, self-synchronizing with 64 bit shift register.
045     */
046    CFB64
047}
048