Found 1 comment on HN
durkie · 2018-03-12 · Original thread
also, a book just came out about Elizebeth Friedman and how a lot of her contributions to cryptology and the birth of sigint in general have been erased from histroy: https://www.amazon.com/Woman-Who-Smashed-Codes-Outwitted-ebo...

it's supposed to be very good, but I just started it last night so don't have much of an opinion yet.

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