[Cryptography] Imitation Game: Can Enigma/Tunney be Fixed?

[Peter Gutmann]

Jon Callas <jon at callas.org> writes:

>Variants of the Enigma were used up until the early-to-mid-1990s, with the
>eleven rotor NEMA.

There have been even more recent attempts to design (at least as gedanken
experiments) secure rotor machines, see Ross Anderson's "A Modern Rotor
Machine" from FES'93, available via
http://link.springer.com/chapter/10.1007%2F3-540-58108-1_6.

Peter.