I keep reading all these descriptions that say John Forbes Nash Jr anticipated the P/NP problem in some letters to the NSA but other people say his conjecture was kind of obvious and basically Shannon already had it. What do you think @SteveBellovin and @mattblaze?
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Nash’s letters were classified from 1955 to 2011. And nobody even thought they were “interesting”.
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... and they are most protective of cryptanalysis methods and Turing worked on cryptanalysis. I am actually supprised they declassified ULTRA at all.
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Wow .. I was not aware .. really 90% of Turing research is still classified?? I am leafing through my copy of Hodges 2014 but can;t seem to find corroboration ..
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That is what some random GCHQ guy said. A very good chance he was pulling my leg for his own amusement. Ask GCHQ questions expect good humored disinformation.
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Strikes me as improbable, given the Cocks & Ellis work. If I recall correctly, they came up with the concept, too, so it's not just an algorithm of Turing's that's being protected.
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I have no idea. It might be some giant archive of his crypto work that no one wants to take responsibility and all the work to declassify. Government agencies often substitute momentum for goals or reasons.
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