des.h

这是从目前银行里

/*=///////////////////////////////////////////////////////////////////////=*/
/*= DES.h  DES算法声明及头文件，用于DSP下的标准C语言版本，Made By sck007  =*/
/*=///////////////////////////////////////////////////////////////////////=*/

#ifndef __TESO_DES_H_SCK007__
#define __TESO_DES_H_SCK007__

#include "SysTypes.h"

/*=///////////////////////////////////////////////////////////////////////=*/

void des(const unsigned char *key, unsigned char *text, int len);

void undes(const unsigned char *key, unsigned char *text, int len);

/*=///////////////////////////////////////////////////////////////////////=*/

/* 初始置换：initial permutation IP */
#pragma DATA_SECTION(ip_tab_des, ".tcconst")
static const unsigned char ip_tab_des[64] =
{
	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
};

/* 末置换：final permutation IP^-1 */
#pragma DATA_SECTION(_ip_tab_des, ".tcconst")
static const unsigned char _ip_tab_des[64] =
{
	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
};

/* 密钥置换C：permuted choice table (key) */
#pragma DATA_SECTION(pc_1_c_des, ".tcconst")
static const unsigned char pc_1_c_des[28] =
{
	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
};

/* 密钥置换D：permuted choice table (key) */
#pragma DATA_SECTION(pc_1_d_des, ".tcconst")
static const unsigned char pc_1_d_des[28] =
{
	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
};

/* 压缩置换：permuted choice key (table) */
#pragma DATA_SECTION(pc_2_des, ".tcconst")
static const unsigned char pc_2_des[48] =
{
	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
};

/* 每轮移动的位数：number left rotations of pc1 */
#pragma DATA_SECTION(ls_count_des, ".tcconst")
static const unsigned char ls_count_des[16] =
{
	1, 1, 2, 2, 2, 2, 2, 2,
	1, 2, 2, 2, 2, 2, 2, 1
};

/* 扩展置换：expansion operation matrix */
#pragma DATA_SECTION(e_r_des, ".tcconst")
static const unsigned char e_r_des[48] =
{
	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
};

/* P盒置换：32-bit permutation func. P used on output of S-boxes */
#pragma DATA_SECTION(P_des, ".tcconst")
static const unsigned char P_des[32] =
{
	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
};

/* S盒代替1-8：The (in)famous S-boxes */
#pragma DATA_SECTION(SSS_des, ".tcconst")
static const unsigned char SSS_des[16][4][16] =
{
	14,4,13,1,2,15,11,8,3,10,6,12,5,9,0,7, // S1
	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,
	
	15,1,8,14,6,11,3,4,9,7,2,13,12,0,5,10, // S2
	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,
	13,8,10,1,3,15,4,2,11,6,7,12,0,5,14,9,
	
	10,0,9,14,6,3,15,5,1,13,12,7,11,4,2,8, // S3
	13,7,0,9,3,4,6,10,2,8,5,14,12,11,15,1,
	13,6,4,9,8,15,3,0,11,1,2,12,5,10,14,7,
	1,10,13,0,6,9,8,7,4,15,14,3,11,5,2,12,
	
	7,13,14,3,0,6,9,10,1,2,8,5,11,12,4,15, // S4
	13,8,11,5,6,15,0,3,4,7,2,12,1,10,14,9,
	10,6,9,0,12,11,7,13,15,1,3,14,5,2,8,4,
	3,15,0,6,10,1,13,8,9,4,5,11,12,7,2,14,
	
	2,12,4,1,7,10,11,6,8,5,3,15,13,0,14,9, // S5
	14,11,2,12,4,7,13,1,5,0,15,10,3,9,8,6,
	4,2,1,11,10,13,7,8,15,9,12,5,6,3,0,14,
	11,8,12,7,1,14,2,13,6,15,0,9,10,4,5,3,
	
	12,1,10,15,9,2,6,8,0,13,3,4,14,7,5,11, // S6
	10,15,4,2,7,12,9,5,6,1,13,14,0,11,3,8,
	9,14,15,5,2,8,12,3,7,0,4,10,1,13,11,6,
	4,3,2,12,9,5,15,10,11,14,1,7,6,0,8,13,
	
	4,11,2,14,15,0,8,13,3,12,9,7,5,10,6,1, // S7
	13,0,11,7,4,9,1,10,14,3,5,12,2,15,8,6,
	1,4,11,13,12,3,7,14,10,15,6,8,0,5,9,2,
	6,11,13,8,1,4,10,7,9,5,0,15,14,2,3,12,
	
	13,2,8,4,6,15,11,1,10,9,3,14,5,0,12,7, // S8
	1,15,13,8,10,3,7,4,12,5,6,11,0,14,9,2,
	7,11,4,1,9,12,14,2,0,6,10,13,15,3,5,8,
	2,1,14,7,4,10,8,13,15,12,9,0,3,5,6,11
};

/*=///////////////////////////////////////////////////////////////////////=*/

#endif /* __TESO_DES_H_SCK007__ */

/*=///////////////////////////////////////////////////////////////////////=*/
/* The end of this file. */