Chapter 10 — Enigma Design

Enigma Machine Simulator

Type letters to encrypt. Watch the signal path through plugboard, rotors, and reflector. The Enigma is self-reciprocal: encrypting the ciphertext with the same settings recovers the plaintext.

Encryption Log

Plaintext
Ciphertext

Statistics

Letters
0
Self-encrypt
0
Reflector
B
Rotor order
I-II-III
No letter ever encrypts to itself — a key weakness exploited by cryptanalysts.

Machine Settings

Rotor Selection
Reflector
Rotor Start Positions
Ring Settings (Ringstellung)
Plugboard (Steckerbrett)

Enter letter pairs separated by spaces. Up to 13 pairs.

You can also type on your physical keyboard. Press Backspace to delete the last character.