ibraimgm / enigma Goto Github PK

We know that in the default CLI app only 3 rotors can be used (I,II,III) but that one can "assemble" one with 5 rotors like the latest Enigma machine.

However, I noticed the following while using it:

• The reflector can only be B or C, anything else (A,D, etc.) is flagged as invalid
• There is no explanation about the Window parameter, what it means, what are valid settings, etc.

And what about the Plugboard? in the machine it consisted of key pairs but that doesn't seem to be handled by command-line parameters.

Conver this project to use go modules. We also need to clan up the Makefile and remove the dependency on dep.

I think there are a few things that don't quite add up, so could you please explain how to properly play with this Enigma implementation?

For example, here there is one of the code sheets used by the Germans, in particular OKH Maschinenschlüssel A #39.

(using Datum #20) As you can see, every day (1..31) the settings changed. There is the Walzenlage which is equivalent to your Rotor flag (-r V,II,III).

There is also the Ringstellung 07,18,04 which is the same as letters GRD. However, it is not clear what the Kenngruppen values are used for. Are any of those four triads the --window parameter? or are they something else?

BTW I modified your code so that I can specify the Plugboard setting which in your current version is always NoPlugboard and cannot be changed by the user. By using the plugboard settings from the code sheet, I cannot get it to validate well.

There are items that are easy to modify so that a custom machine with four (4) rotors could be built. Currently the following do not support an M4 Enigma:

• enigma.Assemble()
• enigma.Window()
• enigma.SetWindow()
• enigma.Ring()
• enigma.SetRing()