Decipher a Chaocipher-enciphered string
Encipher a string using the Chaocipher
Decipher a string using the affine cipher
Decipher a Vigenère-enciphered string
Decipher a Caesar-enciphered string
Decipher a string enciphered by the rail fence cipher
Decipher a scream string as defined by Randall Munroe in xkcd #3054
Decode the extended Morse encoding
Decrypt with Tupper’s self-referential formula
Attempt to crack a Caesar-enciphered message
Universal Reversible Machine
Simulate a forest fire as a probabilistic cellular automaton