Re:P1030680: Unbroken Enigma message (U534, 01 May 1945)
by lifeonlars on Tuesday June 27, 2023 @04:40AM
(#36490406)
There are about 2^67 different Enigma machine initial settings. The inverse probability of the appearance of a real seven letter German word (LUEBECK) twice in this message is a number that's pretty close to 2^67. So if you decrypted a message with incorrect settings you might expect to see those two appearances of LUEBECK, or a similarly misleading occurence. The presence of even a few of the other recognizable German words (or common abbreviations such as triple letters and the shortened names for the numbers) makes it overwhelmingly likely that this is the correct plaintext.
[ Parent
| on HN ]
Re:P1030680: Unbroken Enigma message (U534, 01 May 1945)
by waitforit on Tuesday June 27, 2023 @08:39AM
(#36491925)
That would be true if it actually did the decryption, but my point was, an LLM doesn't decrypt. It just has the encrypted string followed by the decrypted string in its training data and so it outputs something that's almost correct. (the numbers being wrong 4501, 4502, 4503 instead of 4701, 4702, 4703 - maybe some bugged training data, maybe hallucination).