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Cracking Enigma in 2021 - Computerphile

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Further reading 1

Where does learning get a signal without an answer key? →Start with an unlabeled patch of an image, then switch to a game that requires a sequence of actions. Neither has an answer key, but finding structure and choosing a move need different signals.This video helps answer · What can score a decryption without the plaintext?

Caption notes

An Enigma attack ranks candidate settings by how often pairs of letters coincide in the decoded text. Some correct settings leave a statistical trace. Short messages give chance repetitions much more influence.

Archived captions (transcription method unspecified) ↗
Original passages · 2
the probability that when you pick two letters at random they'll be the same
Cracking Enigma in 2021 - Computerphile · ▶ 7:55–8:06
for short messages where these fitness functions start to break down
Cracking Enigma in 2021 - Computerphile · ▶ 18:16–18:20

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