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Johannes Trithemius: Scholar and Cryptologist
Hammer Those Bulls!
Cipher and Silver Balls in the American Revolution
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Cryptologic Histories
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A Reflection of Sherman Kent.PDF
A New View of Pearl Harbor: The U.S. Navy and Communications Intelligence.PDF
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Vol. III, No. 1 - January 1976
Vol. II, No. 12 - December 1975
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History of the Army Security Agency
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History Today 24 January 2008.PDF
History Today 12 October 2006.PDF
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Military Cryptanalysis
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