Cryptanalysis
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Cryptanalysis refers to the process of analyzing information systems in order to understand hidden aspects of the systems. Cryptanalysis is used to breach cryptographic security systems and gain acces
Reconstruction of the appearance of cyclometer, a device used to break the encryption of an early version of the Enigma machine. Based on sketches in Marian Rejewski's memoirs.
The decrypted Zimmermann Telegram.
The Bombe replicated the action of several Enigma machines wired together. Each of the rapidly rotating drums, pictured above in a Bletchley Park museum mockup, simulated the action of an Enigma rotor.
John Tiltman
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Brigadier John Hessell Tiltman, was a British Army officer who worked in intelligence, often at or with the Government Code and Cypher School starting in the 1920s.
British cryptanalysts Harry Hinsley, Sir Edward Travis, and John Tiltman in Washington D.C., November 1945