Scott Dorsey wrote:
In fact, the original Unix crypt utility, still available on most Unix
distributions, is an n-rotor Enigma machine. It's not very hard to break
by modern standards, but it's plenty of fun to play with and the Bell Labs
guys produced a kit to help you break it back in the late eighties. Send
all your friends messages about invading Poland and be the life of the party!
--scott


Somewhere, way back in this group, I did send some postings in Enigma
code (even using the Stecker) that other posters did decode successfully.
What made Enigmas so interesting is that a fairly simply mechanical
device could generate that many permutations.
IIRC, by the time they ended up with a modified one using twelve rotors,
the number of possible permutations were larger than the number of atoms
in the known universe.

Pat