Flaw in the Enigma Code - Numberphile
Numberphile · 4 HN recommendations
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Numberphile's Dr James Grime explains the flaw in the Enigma machine, namely that a letter could never be encrypted to itself, and how that helped the Allies break the code. It touches on the Bombe and Alan Turing.
Why HN recommends it: HN points to it as a short, clear explanation of why Enigma was breakable and how search-space elimination works.
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