A fun thing I made after watching "The Imitation Game". ITS THE ULTIMATE SUBSTITUTION CIPHER!! Input your ultra-secret message after clicking "cipher" and then enter a 4-digit password, then send the incripted message to somebody (with the password!). Then, that person can discipher that message using the incripted message and the password.
How does this work? Pretty simple actually, for example if we were to cipher some text, all it does is it takes the first letter of the text and shifts the letter (a -> b -> c, so on) by the first digit of your password. Then it does the second letter with the second digit, and so on. After it uses all four numbers of the password, it just resets to the first digit. Time spent: 2 hours 30 mins All code done by me
