package?com.ccit.ocp.airload.common.service.impl;

import?java.io.UnsupportedEncodingException;

/**
?*?@author?liyan
?*?
?*/
public?class?Des?{
	/**?***************************壓縮替換S-Box*************************************************?*/
	private?static?final?int[][]?s1?=?{
			{?14?4?13?1?2?15?11?8?3?10?6?12?5?9?0?7?}
			{?0?15?7?4?14?2?13?1?10?6?12?11?9?5?3?8?}
			{?4?1?14?8?13?6?2?11?15?12?9?7?3?10?5?0?}
			{?15?12?8?2?4?9?1?7?5?11?3?14?10?0?6?13?}?};
	private?static?final?int[][]?s2?=?{
			{?15?1?8?14?6?11?3?4?9?7?2?13?12?0?5?10?}
			{?3?13?4?7?15?2?8?14?12?0?1?10?6?9?11?5?}
			{?0?14?7?11?10?4?13?1?5?8?12?6?9?3?2?15?}
			{?13?8?10?1?3?15?4?2?11?6?