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Erschienen in:
2018 | OriginalPaper | Buchkapitel
7. The Interwar Period: 1919–1941
verfasst von : John F. Dooley
Erschienen in: History of Cryptography and Cryptanalysis
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Abstract
In the period between the two World Wars Americans struggled with the morality and the cost of reading other people’s mail. Herbert Yardley created his American Black Chamber and established for the first time that the United States should be in the position to protect itself and further it’s own interests with the use of permanent professional cryptographers and cryptanalysts. William Friedman, working in the Army, established the organization that would be the Army cryptologic backbone during the Second World War. Friedman and the team he put together during the 1930s would move American cryptology into the machine age in both cryptography and cryptanalysis. Despite Yardley’s flaws and failure American would never again be without a cryptanalytic bureau. This chapter briefly examines the professional lives of Herbert Yardley and William Friedman and discusses their contributions to the growth of the American cryptologic infrastructure.