Monday, August 1, 2016

The US military attaché double transposition cipher

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In The compromise of the communications of General Barnwell R. Legge, US military attache to Switzerland I’ve added the following: Apa...
Tuesday, July 19, 2016

Update

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I’ve added information in New developments in the strip cipher case and Compromise of the State Department’s M-138-A strip cipher and the ...
Saturday, July 16, 2016

Netherlands Intelligence Studies Association 25th anniversary conference 1991 – 2016

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On Friday 28 and Saturday 29 October 2016 the Netherlands Intelligence Studies Association (NISA) celebrates its 25th anniversary with an i...
Saturday, July 9, 2016

Book review – ‘Code Warriors: NSA's Codebreakers and the Secret Intelligence War Against the Soviet Union’

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Stephen Budiansky, author of ‘ Battle of Wits: The Complete Story of Codebreaking in World War II ’ and ‘ Blackett's War: The Men Who D...
4 comments:
Friday, July 1, 2016

July 2011 to July 2016 - 5 years of Christos military and intelligence corner

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This July marks 5 years since I created the Christos military and intelligence corner blogsite. During this time I’ve written many essays ...
2 comments:
Sunday, June 26, 2016

Finding aid for the National Cryptologic Museum Library

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A list of the books, reports and other files available at the National Cryptologic Museum Library has been uploaded at the NSA website . ...
Friday, June 24, 2016

Missing paragraphs from TICOM report I-22 ‘Interrogation of German Cryptographers of Pers Z S Department of the Auswaertiges Amt’

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I uploaded TICOM report I-22 back in 2012, however my copy from the British national archives had several paragraphs deleted in pages 16-18...

Victory!

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I recently presented new information on the use of the M-138-A strip cipher by the State Department in the period 1940-44.   However ...