Brute force password cracker.

[Alex1598540]

Hi
I am currently building a brute force password cracker, currently I have a program that allows the user to enter a password (Only in lowercase) and the program will run through all possible options for this password, for example a password of 5 characters is entered it will start with (aaaaa) then (aaaab) then (aaaac) and the so. However, I currently unsure of how to incorporate uppercase characters and special characters into this process so the user can enter a password with all 3 of these and the program will attempt to solve it.

Here is the code i currently have

#include "stdafx.h" 
#include <iostream> 
#include <limits>  
using namespace std;
# include "string"  

int main()
{
	string password;
	string programPass;

	cout << "Please enter a password to test" << endl;
	cin >> password;

	char lowerDigitArray[] = { 'a' - 1,'a','a','a','a','a','a','a','a','a' };

	while (password.compare(programPass) != 0) {

		lowerDigitArray[0]++;
		for (int x = 0; x <password.length(); x++) {   
			if (lowerDigitArray[x] == 'z' + 1)
			{
				lowerDigitArray[x] = 'a';
				lowerDigitArray[x + 1]++;
			}
		}   

		// creating the string with those digits
		programPass = lowerDigitArray[password.length() - 1]; // i set the first one here

		for (int i = password.length() - 2; i >= 0; i--)
			programPass += lowerDigitArray[i]; // now i add other digits to next to first digit

		cout << programPass << endl; // i put it to test how it looks

	}

	cout << "This is your password " << programPass << endl; // gives the result 
	return 0;
}

Thanks for any help you offer.