#include <stdint.h>
#include <stdio.h>

/*
 * Inverse Sboxs
 */
static uint8_t INV_SBOX[256] = {
    0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
    0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
    0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
    0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
    0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
    0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
    0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
    0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
    0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
    0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
    0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
    0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
    0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
    0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
    0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
    0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d};

static uint8_t Ie[256];
static uint8_t I9[256];
static uint8_t Ib[256];
static uint8_t Id[256];

static const uint8_t CONX = 0X1B;

// tables

static uint32_t D0[256];
static uint32_t D1[256];
static uint32_t D2[256];
static uint32_t D3[256];

void generate_mix();
void generate_tables();
void print_tables();

int main () {

    generate_mix();
    generate_tables();
    print_tables();

    return 0;
}


void generate_mix() {
    int i;
    uint8_t base2, base4, base8;
    for ( i = 0; i < 256; ++i) {
        base2 = (INV_SBOX[i]&0x80) ? ((INV_SBOX[i]<<1)^CONX) : (INV_SBOX[i]<<1);
        base4 = (base2&0x80) ? ((base2<<1)^CONX) : (base2<<1);
        base8 = (base4&0x80) ? ((base4<<1)^CONX) : (base4<<1);

        I9[i] = base8 ^ INV_SBOX[i];
        Ib[i] = I9[i] ^ base2;
        Id[i] = I9[i] ^ base4;
        Ie[i] = Id[i] ^ base2 ^ INV_SBOX[i];
    }
}

void print_tables() {

    int i;
    printf("D0:\n");
    for ( i = 0; i < 256; ++i ) {
        printf("0x%8x, ", D0[i]);
        if ( i % 4 == 3 ) {
            printf("\n");
        }
    }
    printf("\n\n");

    printf("D1:\n");
    for ( i = 0; i < 256; ++i ) {
        printf("0x%8x, ", D1[i]);
        if ( i % 4 == 3 ) {
            printf("\n");
        }
    }
    printf("\n\n");

    printf("D2:\n");
    for ( i = 0; i < 256; ++i) {
        printf("0x%8x, ", D2[i]);
        if ( i % 4 == 3 ) {
            printf("\n");
        }
    }
    printf("\n\n");
   
    printf("D3:\n");
    for ( i = 0; i < 256; ++i ) {
        printf("0x%8x, ", D3[i]);
        if ( i % 4 == 3 ) {
            printf("\n");
        }
    }
      
}

void generate_tables() {
      
    int i;
    for (i = 0; i < 256; ++i ) {
        D0[i] = ((uint32_t)Ib[i]<<24) ^ ((uint32_t)Id[i]<<16)
                ^ ((uint32_t)I9[i]<<8) ^ ((uint32_t)Ie[i]);
        D1[i] = ((uint32_t)Id[i]<<24)  ^ ((uint32_t)I9[i]<<16)
                ^ ((uint32_t)Ie[i]<<8)^ ((uint32_t)Ib[i]);
        D2[i] = ((uint32_t)I9[i]<<24)  ^ ((uint32_t)Ie[i]<<16)
                ^ ((uint32_t)Ib[i]<<8)^ ((uint32_t)Id[i]);
        D3[i] = ((uint32_t)Ie[i]<<24) ^ ((uint32_t)Ib[i]<<16)
                ^ ((uint32_t)Id[i]<<8) ^ ((uint32_t)I9[i]);
    }

}