According to https://www.reddit.com/r/cryptography/comments/v0sw2r/enigma_ring_settings_question/

While the rotor is in the machine, the ring+notch+rotor all rotate in sync. While the rotor is pulled out, the ring+notch can be detached and rotated to a different offset compared to some canonical orientation of the inside rotor wiring.

This makes sense.

The online Engima encoder at https://www.101computing.net/enigma-encoder/ Caesar-shifts the rotor configuration based on the ring settings, but does not to shift the notch. Not Caesar-shifting the notch does not appear to be right (please see the Python code at the bottom of the online encoder page). Would someone explain whether I understand this incorrectly.



Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Browse other questions tagged or ask your own question.