His 1967 book, “The Codebreakers,” introduced the world to cryptology and inspired the emergence of private-sector encrypted communication. By Clay Risen David Kahn, whose 1967 book, “The Codebreakers ...
In early 2023, three amateur codebreakers announced they had successfully decoded the secret correspondence of one of the most tragic characters in European history: Mary, Queen of Scots. 57 encrypted ...
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