Unbroken Enigma Message

#1

Post by akakievich » Mon, Feb 01, 2021, 7:20 PM UTC

Unbroken Enigma Message
enigma.hoerenberg.com

Re: Unbroken Enigma Message

#2

Post by haram_masala » Mon, Feb 01, 2021, 7:40 PM UTC

“Be sure to drink your Ovaltine.”

Re: Unbroken Enigma Message

#3

Post by nitrogen » Mon, Feb 01, 2021, 7:41 PM UTC

The page mentions Enigma@Home. How much computation would be required to brute force check all Enigma keys?

Edit: found this on Wikipedia: "the military Enigma has 158,962,555,217,826,360,000 different settings (nearly 159 quintillion or about 67 bits)"

Re: Unbroken Enigma Message

#4

Post by killion » Mon, Feb 01, 2021, 7:43 PM UTC

So it looks like there is only one unbroken message left, the others have been broken between 2012-2017. The Enigma@Home project appears to be on hold while they look at different ways of solving. Am I understanding this correctly?

Re: Unbroken Enigma Message

#5

Post by emsal » Mon, Feb 01, 2021, 7:54 PM UTC

Tangent, but Cryptonomicon by Neal Stephenson[1] is a good novel that touches on WWII cryptography topics really well, going decently mathematically deep into the mechanics of how they work. I'm about 75% of the way through.

[1]: https://en.wikipedia.org/wiki/Cryptonomicon

Re: Unbroken Enigma Message

#6

Post by _Microft » Mon, Feb 01, 2021, 8:03 PM UTC

haram_masala wrote: post #2

“Be sure to drink your Ovaltine.”

"Many resources / allied forces / waste on cracking / advert messages / That bemuses / Burma Shave", see [0] for context. This was not an actual Burma Shave advertisement of course.

[0] https://en.wikipedia.org/wiki/Burma-Shave

Re: Unbroken Enigma Message

#7

Post by TedDoesntTalk » Mon, Feb 01, 2021, 8:07 PM UTC

Help crack it with unused CPU cycles and Enigma@Home (uses the BOINC platform):

http://www.enigmaathome.net/

Re: Unbroken Enigma Message

#8

Post by Noumenon72 » Mon, Feb 01, 2021, 8:29 PM UTC

_Microft wrote: post #6

haram_masala wrote: post #2

“Be sure to drink your Ovaltine.”

"Many resources / allied forces / waste on cracking / advert messages / That bemuses / Burma Shave", see [0] for context. This was not an actual Burma Shave advertisement of course. [0] https://en.wikipedia.org/wiki/Burma-Shave

Usually the rhyme scheme is ABCB: https://www.printmag.com/post/the-morbid-roadside-ad-poetry-...

I'll submit this:

  Let Turing try
  to read our mail 
  Our ciphertext 
  will never fail.
  German-Shave.

Re: Unbroken Enigma Message

#9

Post by saalweachter » Mon, Feb 01, 2021, 8:32 PM UTC

Is there any possibility the cyphertext is wrong? Either generated with a bug, someone hit the wheel halfway through, copied down wrong, etc? Is there a checksum that authenticates this as a valid cyphertext?

Re: Unbroken Enigma Message

#10

Post by _Microft » Mon, Feb 01, 2021, 8:34 PM UTC

Noumenon72 wrote: post #8

_Microft wrote: post #6

Earlier quoted context omitted.

"Many resources / allied forces / waste on cracking / advert messages / That bemuses / Burma Shave", see [0] for context. This was not an actual Burma Shave advertisement of course. [0] https://en.wikipedia.org/wiki/Burma-Shave

Usually the rhyme scheme is ABCB: https://www.printmag.com/post/the-morbid-roadside-ad-poetry-... I'll submit this: Let Turing try to read our mail Our ciphertext will never fail. German-Shave.

Yours sounds good. I crafted mine according to the pattern in https://en.wikipedia.org/wiki/Burma-Shave#/media/File:BurmaS... and tried to rhyme bemuses on resources and forces with questionable success.

The article you linked to is nice and was never submitted here before. I hope you do not mind that I just did that.