The Enigma Encryption System. Andrew Regan CSC 290. Key Components for Encryption/Decryption. Plugboard. 3 Rotating Removable Rotors. Reflector. Sample Encryption/Decryption. Enigma. Enigma Properties. 3 rotors 26x26x26 = 17,576 initial settings
Find initial rotor setting and rotor order.
Uses Index of Coincidence.
Iterate through all possible initial rotor settings and rotor orders with no plugboard.
Largest IOC is the most likely rotor arrangement.Ciphertext-Only Attack