📄 desok.h
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//------------------------------------------------------------//
//------------------ data define for Des use ---------------//
//------------------------ 2003/11/21 ------------------------//
//---------------------- Wang Qingshan -----------------------//
//------------------------------------------------------------//
//根据运算时节约和方便计算,对其中的一些表作了改写。
//常数SubKey数组为Computer的16个子密钥,可在计算时校验。
#define uchar unsigned char
#define uint unsigned int
#define lint long int
#define nop _NOP()
int DeiDaiLoop; //2
//uchar Subkey[6]; //6
uchar SubKey[16][6]; //96
uchar AData[4]={0}; //4
uchar BData[4]={0}; //4
uchar EX48bit[6]={0}; //6
uchar SBox48[8]={0}; //8
uchar SBox32[4]={0}; //4
uchar PlantText[8]="learning"; //8
uchar i,j; //2
uchar KeyText[8]="computer"; //8
uchar Chiper[8]; //8
//total use:150(SubKey in RAM)
// 60(SubKey store in Exterior)
/*
//生成的16个子密钥,可以作子密钥的计算验证,为的节省RAM,建议将子密钥存到EEPROM中,运算中一个一个的提取。
const uchar SubKey[16][6]={
{ 15, 125, 119, 11, 224, 25},
{ 7, 125, 111, 169, 45, 33},
{ 47, 127, 110, 20, 96, 167},
{103, 239, 78, 88, 23, 225},
{119, 235, 238, 100, 162, 137},
{247, 203, 218, 209, 132, 194},
{244, 203, 223, 99, 195, 0},
{253, 154, 219, 10, 224, 114},
{248, 218, 219, 34, 169, 42},
{252, 158, 187, 144, 37, 55},
{248, 182, 179, 22, 59, 129},
{218, 182, 189, 80, 34, 252},
{187, 181, 181, 241, 154, 1},
{203, 117, 245, 1, 194, 142},
{159, 125, 101, 203, 81, 32},
{143, 125, 116, 128, 65, 122}
};
*/
//初始置换IP
const uchar IP[64]={
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,
56, 48, 40, 32, 24, 16, 8, 0,
58, 50, 42, 34, 26, 18, 10, 2,
60, 52, 44, 36, 28, 20, 12, 4,
62, 54, 46, 38, 30, 22, 14, 6
};
//初始置换的逆置换IP-1
const uchar ReIP[64]={
32, 0, 40, 8, 48, 16, 56, 24,
33, 1, 41, 9, 49, 17, 57, 25,
34, 2, 42, 10, 50, 18, 58, 26,
35, 3, 43, 11, 51, 19, 59, 27,
36, 4, 44, 12, 52, 20, 60, 28,
37, 5, 45, 13, 53, 21, 61, 29,
38, 6, 46, 14, 54, 22, 62, 30,
39, 7, 47, 15, 55, 23, 63, 31
};
//密钥的第一次选位
const uchar PC1[56]={
56, 48, 40, 32, 24, 16, 8,
0, 57, 49, 41, 33, 25, 17,
9, 1, 58, 50, 42, 34, 26,
18, 10, 2, 59, 51, 43, 35,
62, 54, 46, 38, 30, 22, 14,
6, 61, 53, 45, 37, 29, 21,
13, 5, 60, 52, 44, 36, 28,
20, 12, 4, 27, 19, 11, 3
};
//密钥的第二次选位
const uchar PC2[48]={
13, 16, 10, 23, 0, 4,
2, 27, 14, 5, 20, 9,
22, 18, 11, 3, 25, 7,
15, 6, 26, 19, 12, 1,
44, 55, 34, 40, 50, 58,
33, 43, 54, 48, 36, 51,
47, 52, 42, 59, 37, 56,
49, 45, 53, 39, 32, 35
};
const uchar Exp[48]={
31, 0, 1, 2, 3, 4,
3, 4, 5, 6, 7, 8,
7, 8, 9, 10, 11, 12,
11, 12, 13, 14, 15, 16,
15, 16, 17, 18, 19, 20,
19, 20, 21, 22, 23, 24,
23, 24, 25, 26, 27, 28,
27, 28, 29, 30, 31, 0 //0?????
};
//8个S-Box数组
const uchar S[8][64]={
{//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
},
{//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, 7, 12, 0, 5, 14, 9
},
{//S3
10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
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
},
{//S4
7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15,
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
},
{//S5
2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
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
},
{//S6
12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
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
},
{//S7
4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
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
},
{//S8
13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
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
}
};
//S-box结果压缩换位表
const uchar SPc[32]={
12, 5, 16, 23, 31, 8, 24, 19,
3, 13, 21, 26, 7, 18, 29, 10,
2, 4, 20, 14, 28, 25, 1, 11,
17, 15, 30, 6, 22, 9, 0, 27
};
//16个字密钥的移位次数
const uchar LShift[16]={1,1,2,2,2,2,2,2,1,2,2,2,2,2,2,1};
//字节中的位位置
const uchar Position[8]={1,2,4,8,16,32,64,128};
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