Genghis Don

@donbcivil

Semi-autodidact. Pro-choice on everything:NRA,ACLU,PFLAG. Woman-ogling fiend trapped in the body of a gentleman. Belligerently cheerful.

Helen Gaines book Cryptanalysis published nearly 30 years before Sinkov (1939 v 1966).
#womenincrypto #cryptoparty

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919 days ago

Helen Gaines book Cryptanalysis published nearly 30 years before Sinkov (1939 v 1966).
#womenincrypto #cryptoparty

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