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Enigma, the Bombe, and Typex

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Re: Enigma, the Bombe, and Typex

#3

Post by flohofwoe »

There's a user-mod for Silent Hunter 5 (WW2 submarine simulation) which contains a fully working Enigma emulator for decoding and encoding messages. And with this mod installed, all orders from High Command come in encrypted and you'll have to learn and apply all the manual steps required for decoding to actually know what to do next in the game :)

Here's a walkthrough video: https://www.youtube.com/watch?v=t-7-FrBU4fY

Good example of a video game that can also be educational, also a good case for keeping video games open enough so they can be modded by users.

Re: Enigma, the Bombe, and Typex

#4

Post by cjwillcock »

I made a universal enigma machine simulator that includes a visualization of how the electric signal moves through the rotors and back. The rotors move too.

See https://enigma.w6k.ca/

This shows the many other variants not covered by the implementation in the article. Over 800 tests and open source.

Not for use on mobile and probably not for tablet.

Re: Enigma, the Bombe, and Typex

#5

Post by willvarfar »

cjwillcock wrote: post #4

I made a universal enigma machine simulator that includes a visualization of how the electric signal moves through the rotors and back. The rotors move too. See https://enigma.w6k.ca/ This shows the many other variants not covered by the implementation in the article. Over 800 tests and open source. Not for use on mobile and probably not for tablet.

I found the paper Enigma excellent for understanding how Enigma worked. http://wiki.franklinheath.co.uk/index.php/Enigma/Paper_Enigm...

I kind of imagined it would make a nice 3d printer project, either printing ball-runs so ball-bearings represent current, or by somehow including conductors in the printing. If there is some glow-when-connected wire or wire with lots of tiny leds in, that would be awesome!

Re: Enigma, the Bombe, and Typex

#6

Post by TomAnthony »

willvarfar wrote: post #2

I played around cracking Enigma https://williamedwardscoder.tumblr.com/post/145830743193/my-... I'm quite pleased with the conciseness of my Python version of the Enigma: https://gist.github.com/williame/94beef4b9afea659864950c29d4...

That Python implementation is really concise! Nice job!

Re: Enigma, the Bombe, and Typex

#7

Post by mstade »

flohofwoe wrote: post #3

There's a user-mod for Silent Hunter 5 (WW2 submarine simulation) which contains a fully working Enigma emulator for decoding and encoding messages. And with this mod installed, all orders from High Command come in encrypted and you'll have to learn and apply all the manual steps required for decoding to actually know what to do next in the game :) Here's a walkthrough video: https://www.youtube.com/watch?v=t-7-FrBU4…

This is a great video, thank you for sharing!

Re: Enigma, the Bombe, and Typex

#8

Post by sixothree »

I've always felt conflicted about learning anything about these machines. They were part of such a terrible machine and were used to commit some awful crimes.

I have interest in Colossus and Bletchley Park though.

Re: Enigma, the Bombe, and Typex

#9

Post by NateEag »

sixothree wrote: post #8

I've always felt conflicted about learning anything about these machines. They were part of such a terrible machine and were used to commit some awful crimes. I have interest in Colossus and Bletchley Park though.

Why does understanding an evildoer's tools bother you?
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