Enigma Machine

Tags

cryptography

Is an cryptographic system designed as a poly-alphabetic substitution cipher around the use of [see page 13, 3-rotors] that change after every character is digested. Each rotation of any one of the rotors alters the cipher for the next character.

The actual mechanism of the machine has one rotor move after every character is inserted, the second move only once the first rotor has made a complete revolution and the final rotor only after the second has made a complete revolution.