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Below is a list of NSA/CSS historical publications. PDF or text file versions are available for most of the monographs and brochures. Printed copies of publications marked with an asterisk (*) may be requested from the Center for Cryptologic History via our online form.


Subject Title Author Date Available Format
Cryptology Cryptology's Role in the Early Development of Computer Capabilities in the United States James V. Boone
James J. Hearn
2015 Monograph
DEFSMAC In the Forefront of Foreign Missile and Space Intelligence - History of the Defense Special Missile and Aerospace Center (DEFSMAC), 1960-2010 Richard L. Bernard 2012 Monograph
ELINT Electronic Intelligence (ELINT) at NSA * Richard L. Bernard 2009 Monograph
Information Security Securing Record Communications: The TSEC/KW-26 * Melville Klein 2003 Brochure
SIGABA/ECM II The SIGABA/ECM II Cipher Machine: "A Beautiful Idea" Timothy J. Mucklow 2015 Monograph
TELINT Telemetry Intelligence (TELINT) During the Cold War Richard L. Bernard 2016 Brochure