encrypt

#include <iostream>
#include <string>


using namespace std;



/*Hello everyone,
today I'm going to show you how to make a little encryption program using a for loop.
Basically you take a (pre-defined) textstring and xor (exclusive or) it with a
character (char) to encrypt/decrypt that string.

xor works like this:
    Each and every piece of code will be translated in bits or ones and zeros ( 1 , 0)
    Xor does this: it will check whether the bits are equal or not (true or false);
    The result is 1 if either one of the two bits is 1, but not in the case that both are. There for, if neither
    or both of them are equal to 1 the result is 0.

    e.g.

    00111    a;
    01010    b;

    01101    deliver this */

int main()
{
    // lets start coding:
    std::string original = "Hello World! Don't forget to subscribe to mausy131 :D";
    std::string encrypted;
    std::string decrypted;
    std::string newOriginal;
    char key = 'x'; // we will use this to XOR our original string with

    /*optional
        cout << "Enter the sting you want to encrypt: \n";
        getline(cin, newOriginal)

        Place the for loop here and replace "original" with newOriginal
        Also place the rest of the stuff here.
    */


    //we will  now make the algorithm
    for(int i = 0; i < original.size(); ++i){
        encrypted += original[i] ^ (int(key) + i) % 20;  // here we will do our XOR operation..
    }
    cout << "Here is my secret that nobody may know: \n\n" << encrypted << endl;

    cout << "\nHere is the decrypted string: \n" << endl;

     for(int i = 0; i < encrypted.size(); ++i){
        decrypted += encrypted[i] ^ (int(key) + i) % 20;  // here we will do our XOR operation to decrypt our string
    }

    cout << endl << decrypted << endl;

    cin.get();
    return 0;
}

/*

This is a very weak protection, you should use Shifts and Rolls and such
stuff but this is good for learning!
I hope you liked it and learned something.
Please subscribe to my channel :D
*/