Black Box Crypto Puzzles
Welcome to the Black Box Crypto Puzzles!
Each of these puzzles contains a simple encryption algorithm.
You can feed them plain text or ciphertext, and watch it translate it, but you can't see how.
The goal is to figure out - how does each one actually function?
Black Box Puzzle #1
Black Box Puzzle #2
Black Box Puzzle #3
Black Box Puzzle #4
Black Box Puzzle #5
Black Box Puzzle #6
Black Box Puzzle #7
If you think you know how a puzzle works,
send us
your best guess to receive feedback.