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UINT8 change_box[] = { 0xD1, 0x97, 0xEE, 0xF9, 0xCB, 0xE6, 0x3A, 0xB0, 0x11, 0xB1, 0x13, 0xC5, 0x2F, 0xFC, 0x2B, 0x02, 0x2C, 0x60, 0x9D, 0x71, 0x2D, 0xB9, 0x03, 0xC4, 0xAD, 0x43, 0x14, 0x21, 0x4E, 0x81, 0x01, 0x9E, 0x9B, 0x45, 0x57, 0xF3, 0x96, 0xE8, 0x9F, 0x7D, 0x34, 0x53, 0x0C, 0x44, 0xEA, 0xC8, 0xAB, 0x65, 0xE3, 0xB4, 0x1B, 0xAE, 0xCE, 0x0F, 0xEF, 0x92, 0x87, 0xD8, 0x93, 0xFD, 0x72, 0x88, 0x38, 0xA1, 0x40, 0x00, 0xA0, 0xFB, 0xF4, 0x74, 0x10, 0xBD, 0x84, 0x5E, 0x3B, 0x1E, 0xE1, 0x82, 0x48, 0xAF, 0x6F, 0x6C, 0x86, 0xB5, 0x76, 0x63, 0xDD, 0x8C, 0xFF, 0xEC, 0x08, 0x4C, 0x77, 0x51, 0x9A, 0x32, 0x19, 0x23, 0x09, 0x59, 0x64, 0x5F, 0xD6, 0xA5, 0x22, 0x25, 0x7B, 0x3C, 0x06, 0x26, 0x7F, 0x80, 0xD3, 0x07, 0x41, 0x50, 0x98, 0xD4, 0x20, 0x55, 0x4B, 0x31, 0x05, 0xE0, 0xA7, 0xC3, 0xCF, 0x99, 0xED, 0xB8, 0x8D, 0xD5, 0x47, 0xC0, 0x3F, 0xB2, 0xA4, 0xF0, 0xF5, 0xC9, 0xFE, 0x66, 0x12, 0xA6, 0xE7, 0xA9, 0x5A, 0xA3, 0x9C, 0x33, 0x1D, 0x52, 0xAA, 0x94, 0x35, 0x37, 0xF2, 0x8B, 0xB6, 0xE4, 0x1A, 0xF1, 0xE5, 0x29, 0x85, 0x61, 0xCD, 0x67, 0xC7, 0x2E, 0x24, 0xAC, 0x0A, 0x54, 0x49, 0x68, 0xD2, 0xDC, 0x30, 0x42, 0xD9, 0xFA, 0x89, 0x28, 0x04, 0xF8, 0x6D, 0x75, 0x6A, 0x6B, 0x5C, 0x56, 0x8A, 0x1C, 0xA8, 0x95, 0xBC, 0xDA, 0xBB, 0x78, 0x16, 0xDE, 0x5B, 0x46, 0x18, 0x17, 0x5D, 0xDF, 0x0D, 0xC6, 0x36, 0x8F, 0xA2, 0xCA, 0x7C, 0xBA, 0x2A, 0x73, 0xD7, 0x15, 0xBF, 0xE2, 0xB3, 0xB7, 0x8E, 0x6E, 0x90, 0x4D, 0x0B, 0x91, 0x70, 0x79, 0x62, 0xBE, 0xF6, 0x0E, 0xC2, 0x69, 0xC1, 0x83, 0x1F, 0xF7, 0x7A, 0xEB, 0x3D, 0xDB, 0x4A, 0x27, 0x7E, 0xE9, 0x58, 0x39, 0xD0, 0xCC, 0x3E, 0x4F };
UINT32 xor_box[] = { 0x80A3B97F, 0xB9D4ECD6, 0x7425ECAA, 0x339BD365, 0xA5D18B13, 0x56A7A4DE, 0xE907C73E, 0xD0AA04A9, 0x6C827F28, 0xE997196A, 0x0C2F2AD8, 0xFD9D6DA5, 0x164DDA6D, 0x5FDCC2A4, 0x489987B7, 0xFDEF5978, 0x96C21ACA, 0x7FF46259, 0xB9ADC94E, 0x47FB566D, 0x8CCFC943, 0x8DA5E336, 0x1B49D41B, 0x6647A175, 0xC3DE9068, 0xF6708794, 0xE94AB191, 0x540B89A4, 0xB6ABA320, 0x2A7764D0, 0xEDC490A7, 0xC1F6DA35 };
unsigned int last[12] = {
0x2DF2B839, 0x4CA553D7, 0x72FC8455, 0xBFEC6CFF, 0x597F4EE6, 0x9EC140C6, 0xB1E70DEA, 0xBFDC0DAB,
0xD05154AF, 0x25A2F8C6, 0x36A4EE33, 0xD116C3F1
};
unsigned int lastb[12] = { 0x39B8F22D,0xD753A54C,0x5584FC72,0xFF6CECBF,0xE64E7F59,0xC640C19E,0xEA0DE7B1,0xAB0DDCBF,0xAF5451D0,0xC6F8A225,0x33EEA436,0xF1C316D1 };
UINT64 get(int index) {
return change_box[index & 0xff] ^ 7;
}
void enc(UINT32* input) {
UINT32 changer, p2, p4, p3, p1;
for (int i = 0; i < 32; i++)
{
p1 = input[i];
p2 = input[i + 1];
p3 = input[i + 2];
p4 = input[i + 3];
UINT32 m = p2 ^ p3 ^ p4 ^ xor_box[i];
UINT32* pm = &m;
UINT8* p = (UINT8*)pm;
UINT32 need1 = get(p[3]);
UINT32 need2 = (need1 << 24) | (get(p[2]) << 16);
UINT32 cul_num1 = (get(p[3]) << 24) | (get(p[2]) << 16) | (get(p[1]) << 8) | get(p[0]);
UINT64 cul_num2 = ((get(p[0]) << 24) | (get(p[3]) << 16) | (get(p[2]) << 8) | get(p[1])) << 8;
UINT32 final_enc = cul_num1 ^ (cul_num2 >> 8) ^ p1 ^ ((need1 >> 6) | cul_num1 << 2) ^ (PAIR64(cul_num1, need2) >> 22) ^ (PAIR64(cul_num1, cul_num2) >> 14);
//std::cout << "0x" << std::hex << final_enc << " ,";
input[i + 4] = final_enc;
}
std::cout << std::endl;
}
void dec(UINT* input) {
UINT32 changer, p2, p4, p3, p1;
UINT32 out[5] = {};
for (int i = 35; i > 3; i--) {
p1 = input[i - 3];
p2 = input[i - 2];
p3 = input[i - 1];
p4 = input[i];
UINT32 m = p1 ^ p2 ^ p3 ^ xor_box[i - 4];
UINT32* pm = &m;
UINT8* p = (UINT8*)pm;
UINT32 need1 = get(p[3]);
UINT32 need2 = (need1 << 24) | (get(p[2]) << 16);
UINT32 cul_num1 = (get(p[3]) << 24) | (get(p[2]) << 16) | (get(p[1]) << 8) | get(p[0]);
UINT64 cul_num2 = ((get(p[0]) << 24) | (get(p[3]) << 16) | (get(p[2]) << 8) | get(p[1])) << 8;
UINT32 final_dec = cul_num1 ^ (cul_num2 >> 8) ^ p4 ^ ((need1 >> 6) | cul_num1 << 2) ^ (PAIR64(cul_num1, need2) >> 22) ^ (PAIR64(cul_num1, cul_num2) >> 14);
if (i < 8) {
out[i - 4] = final_dec;
input[i - 4] = final_dec;
}
else
{
input[i - 4] = final_dec;
}
//std::cout << "0x" << std::hex << final_dec << " ";
}
//std::cout << std::endl;
//std::cout << "0x" << std::hex << out[0] << "0x" << std::hex << out[1] << "0x" << std::hex << out[2] << "0x" << std::hex << out[3];
std::cout << (char*)out << std::endl;
}
int main(void) {
//UINT32 input_num[36] = { 0x31323334, 0x31323334, 0x35363738, 0x35363738 };
//UINT32 encn[36] = {};
//for (int i = 0; i < 4; i++)
//{
// encn[i] = input_num[i];
//}
//enc(encn);
//UINT32 lll[32] = { 0xee53ae6d ,0xad8d58d3 ,0xe904c44a ,0xffa30914 ,0xa34d50fe ,0x6d0b76d8 ,0x93d7b44c ,0x9f34dba ,0x43f64ea2 ,0xd2961d0a ,0xabc12a71 ,0x5506c498 ,0xe60804c1 ,0x6fab9817 ,0xa680fb2e ,0xc903775d ,0xacae3b34 ,0x564cb9a3 ,0x93db754a ,0x66321125 ,0xbc6fcb43 ,0x5a069224 ,0x3661a351 ,0xa06815fb ,0xa7096626 ,0xc78b501 ,0xf9d14107 ,0x1ecbf7c7 ,0xd23229c8 ,0xf04e9414 ,0x4eee3557 ,0xd01d30b3 };
//for (int i = 0; i < 32; i++)
//{
// encn[i] = 0;
//}
//dec(encn);
for (int i = 0; i < 12; i += 4)
{
UINT32 tround[36] = {};
tround[32] = lastb[i + 3];
tround[33] = lastb[i + 2];
tround[34] = lastb[i + 1];
tround[35] = lastb[i];
dec(tround);
}
}
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