[Cryptography] Rotor wiring on the Enigma

Dave Horsfall dave at horsfall.org
Tue Feb 24 13:20:57 EST 2015


On Tue, 24 Feb 2015, Richard Outerbridge wrote:

> > How was the wiring on the various rotors determined?  It would be too 
> > dangerous to do it randomly, as one rotor could undo another, and none 
> > of my texts seem to go into this.
> 
> They captured them.

OK, I'll rephrase it: why was the wiring designed that way in the first 
place?

> > Also, I'd like to find a concise description on how the M-209 Hagelin 
> > worked, with its interlocking lugs etc.
> 
> It’s an aperiodic maximal period mechanical multiplier.

Oddly enough, I can understand that :-)

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