Math
Enigma
Operate a historically wired three-rotor Enigma with visible signal paths, plugboard pairs, reversible encryption and correct double stepping.
Try this
Type Latin letters and follow each signal through the plugboard, three rotors and reflector. Rotor order I–II–III, reflector B and ring settings AAA are fixed. Positions use A=0. Reuse ciphertext from the same start to decrypt.
Equations used in the module
Equations Signal: plugboard → III → II → I → B → I⁻¹ → II⁻¹ → III⁻¹ → plugboard Stepping precedes the electrical signal Notches: I at Q, II at E, III at V; middle rotor double-steps Same settings + ciphertext → plaintext; no letter encrypts to itself
