#include "camellia.h"
#include <cstdio>
#include <cstring>

int main()
{
    //unsigned char key[] = { 'D', 'i', 'e', 's', ' ', 'i', 'r', 'a', 'e', ' ', '\x90', '\xBB', '\x95', 'i', '\x94', '\xC5' }; //trial
    unsigned char key[] = "agbsvAZJVBqMwzmE";

    FILE *fp = fopen("exec.dmp", "rb");

    if (fp == NULL) return 1;

    fseek(fp, 0, SEEK_END);
    int size = ftell(fp);
    fseek(fp, 0, SEEK_SET);

    unsigned char *buff = new unsigned char[size];
    fread(buff, 1, size, fp);
    fclose(fp);

    unsigned char *decbuff = new unsigned char[size];
    memset(decbuff, 0, size);

    KEY_TABLE_TYPE kt;
    memset(kt, 0, sizeof(kt));
    Camellia_Ekeygen(128, key, kt);

    unsigned char *enc = buff, *dec = decbuff;
    for (int i = 0; i < size / CAMELLIA_BLOCK_SIZE; i++)
    {
        Camellia_DecryptBlock(128, enc, kt, dec);
        enc += CAMELLIA_BLOCK_SIZE;
        dec += CAMELLIA_BLOCK_SIZE;
    }

    fp = fopen("out.bin", "wb");
    fwrite(decbuff, 1, size, fp);
    fclose(fp);

    delete[] buff;
    delete[] decbuff;
}