Re: M4 project

A bit OT this, but I just noticed a minor bug in the enigma machine 
simulator being used by the M4 project people and don't know how to 
report it. Hopefully, their guys read this list....


Basically, if you don't specify the UKW, the simulator assumes UKW "B". 
However, if you've specified "-m M4" it *still* assumes UKW "B" (i.e. 
thick UKW "B" for the M3 machine). You actually have to specify "-u B" 
with "-m M4" or it doesn't work.

Neither of the thick UKWs will fit in an M4 machine of course...

The simulator should assume UKW "thin-B" at the very least, and probably 
would make sense to look at which greek wheel is being used and use UKW 
"thin-B" or UKW "thin-C" accordingly.

[ I don't know if the Kriegsmarine ever used greek rotor "beta" with UKW 
"thin-C" (or vice versa), but it was at least possible and the "-u" 
option on the simulator would allow for such a thing. The M4 machine in 
that mode would however not be able to read M3 messages and AFAICS 
that's part of the job requirement. I reckon it's unlikely the 
Kriegsmarine ever did that therefore. ]

Steve