//#include "stdafx.h"#include "stdlib.h"#include "stdio.h"int main(int argc, char* argv[]){char chKey[128] = {0};unsigned int unXORCode, unRemainder, unQuotient, unTmp, unMachineCode;printf("Please Key in the Machine Code:\n");scanf("%d", &unMachineCode);unXORCode = unMachineCode ^ 0x90909090;unRemainder = unXORCode % 0x25;unQuotient = unXORCode;if (unRemainder < 0x11){unRemainder += 0x11;}int i;i = 0;while (unQuotient != 0){unTmp = unQuotient % unRemainder;unQuotient /= unRemainder;if (unTmp >= 0xa){unTmp = unTmp + 0x61 + 0xf6;unTmp &= 0x0ff;chKey[i] = unTmp;}else{chKey[i] = unTmp + 0x30;}i++;}printf("Key is: \n");while (i >= 0){printf("%c", chKey[i]);i--;}printf("\n");return 0;}