package?csu.zjq.des;


/**
?*?加密過程：
?*??1.初始置換IP：將明文順序打亂重新排列，置換輸出為64位。
?*??2.將置換輸出的64位明文分成左右涼拌，左一半為L0，右一半稱為R0，各32位。
?*?	3。計算函數的16輪迭代。?
?*?	?a）第一輪加密迭代：左半邊輸入L0，右半邊輸入R0：由輪函數f實現子密鑰K1對R0的加密，
?*	???????結果為32位數據組f（R0K1）?
?*	?b）第二輪加密迭代：左半邊輸入L1=R0，右半邊輸入R1=L0⊕f（R0K1）由輪函數f實現子密鑰
?*?	???K2對R1的加密，結果為32位數據組f（R1，K2），f（R1K2）與L1模2相加，得到一個32為數據組?L1⊕f（R1K2）.
?*?	?c）第3到16輪迭代分別用密鑰K3，K4……K16進行。?4.再經過逆初始置換IP-1，將數據打亂重排，生成64位密文。
?*?
?*?子密鑰生成過程：
?*?	1.將64位的密鑰經過PC-1置換生成56位密鑰。
?*?	2.將56位的密鑰分成左右兩部分，分別進行移位操作（一共進行16輪），產生16個56位長度的子密鑰。
?*?	3.將16個56位的子密鑰分別進行PC-2置換生成16個48位的子密鑰。
?*?
?*?輪函數f的工作過程：?
?*?	1.在第i次加密迭代過程中，擴展置換E對32位的Ri-1的各位通過置換表置換為48位的輸出。
?*?	2.將該48位的輸出與子密鑰Ki進行異或操作，運算結果經過S盒代換運算，得到一個32位比特的輸出。
?*?	3該32位比特輸出再經過P置換表進行P運算，將其各位打亂重排，生成32位的輸出。
?*?
?*?
?*/
??public?class?DES?{
		int[]?byteKey;
		
		
		public?DES（int[]?byteKey）?{
			this.byteKey?=?byteKey;
		}

		private?static?final?int[]?IP?=?{?58?50?42?34?26?18?10?2?60?52
				44?36?28?20?12?4?62?54?46?38?30?22?14?6?64?56?48
				40?32?24?16?8?57?49?41?33?25?17?9?1?59?51?43?35
				27?19?11?3?61?53?45?37?29?21?13?5?63?55?47?39?31
				23?15?7?};?//?64
		private?static?final?int[]?IP_1?=?{?40?8?48?16?56?24?64?32?39?7
				47?15?55?23?63?31?38?6?46?14?54?22?62?30?37?5?45
				13?53?21?61?29?36?4?44?12?52?20?60?28?35?3?43?11
				51?19?59?27?34?2?42?10?50?18?58?26?33?1?41?9?49
				17?57?25?};?//?64
		private?static?final?int[]?PC_1?=?{?57?49?41?33?25?17?9?1?58?50
				42?34?26?18?10?2?59?51?43?35?27?19?11?3?60?52?44
				36?63?55?47?39?31?23?15?7?62?54?46?38?30?22?14?6
				61?53?45?37?29?21?13?5?28?20?12?4?};?//?56
		private?static?final?int[]?PC_2?=?{?14?17?11?24?1?5?3?28?15?6?21
				10?23?19?12?4?26?8?16?7?27?20?13?2?41?52?31?37?47
				55?30?40?51?45?33?48?44?49?39?56?34?53?46?42?50?36
				29?32?};?//?48
		private?static?final?int[]?E?=?{?32?1?2?3?4?5?4?5?6?7?8?9?8?9
				10?11?12?13?12?13?14?15?16?17?16?17?18?19?20?21?20
				21?22?23?24?25?24?25?26?27?28?29?28?29?30?31?32?1?};?//?48
		private?static?final?int[]?P?=?{?16?7?20?21?29?12?28?17?1?15?23
				26?5?18?31?10?2?8?24?14?32?27?3?9?19?13?30?6?22
				11?4?25?};?//?32
		private?static?final?int[][][]?S_Box?=?{//?S-??
				{//?S_Box[1]
				{?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?}?}
				{?//?S_Box[2]
				{?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

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-04-18?02:03??Cryptography\
?????文件?????????301??2014-04-11?10:26??Cryptography\.classpath
?????文件?????????388??2014-04-11?10:26??Cryptography\.project
?????目錄???????????0??2014-04-11?10:32??Cryptography\.settings\
?????文件?????????181??2014-04-18?08:30??Cryptography\.settings\org.eclipse.core.resources.prefs
?????文件?????????598??2014-04-11?10:26??Cryptography\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2014-04-23?20:55??Cryptography\bin\
?????目錄???????????0??2014-04-23?20:55??Cryptography\bin\csu\
?????目錄???????????0??2014-04-23?20:55??Cryptography\bin\csu\zjq\
?????目錄???????????0??2014-04-23?20:55??Cryptography\bin\csu\zjq\des\
?????文件???????11095??2014-04-23?20:55??Cryptography\bin\csu\zjq\des\DES.class
?????目錄???????????0??2014-04-23?20:55??Cryptography\bin\csu\zjq\mainframe\
?????文件????????3600??2014-04-24?16:28??Cryptography\bin\csu\zjq\mainframe\Mainframe.class
?????文件????????1138??2014-04-23?20:55??Cryptography\bin\csu\zjq\mainframe\Skeyframe$1.class
?????文件????????1474??2014-04-23?20:55??Cryptography\bin\csu\zjq\mainframe\Skeyframe$2.class
?????文件????????1963??2014-04-23?20:55??Cryptography\bin\csu\zjq\mainframe\Skeyframe.class
?????目錄???????????0??2014-04-23?20:55??Cryptography\bin\csu\zjq\rc4\
?????文件????????1666??2014-04-23?20:55??Cryptography\bin\csu\zjq\rc4\RC4.class
?????目錄???????????0??2014-04-23?20:55??Cryptography\bin\csu\zjq\rsa\
?????文件????????5218??2014-04-23?20:55??Cryptography\bin\csu\zjq\rsa\RSA.class
?????文件????????2777??2014-04-23?20:55??Cryptography\bin\csu\zjq\rsa\RSAy.class
?????目錄???????????0??2014-04-23?20:55??Cryptography\bin\csu\zjq\skey\
?????文件????????2075??2014-04-23?20:55??Cryptography\bin\csu\zjq\skey\MD5String.class
?????文件????????3071??2014-04-23?20:55??Cryptography\bin\csu\zjq\skey\Skey.class
?????文件???????????1??2014-04-25?01:38??Cryptography\int.txt
?????文件????????3366??2014-04-25?01:34??Cryptography\md5.txt
?????目錄???????????0??2014-04-11?10:27??Cryptography\src\
?????目錄???????????0??2014-04-11?10:27??Cryptography\src\csu\
?????目錄???????????0??2014-04-17?23:16??Cryptography\src\csu\zjq\
?????目錄???????????0??2014-04-11?10:28??Cryptography\src\csu\zjq\des\
?????文件???????14354??2014-04-17?23:35??Cryptography\src\csu\zjq\des\DES.java
............此處省略11個文件信息