The NSA’s “ National Cryptographic School Television Catalogue ” from 1991 lists about 600 COMSEC and SIGINT training videos. There are a bunch explaining the operations of various cryptographic equipment, and a few code words I have never heard of before. [...]

It’s heavily redacted, but still interesting. Many more ODNI documents here. [...]

Through a 2010 FOIA request (yes, it took that long), we have copies of the NSA’s KRYPTOS Society Newsletter, “ Tales of the Krypt,” from 1994 to 2003. There are many interesting things in the 800 pages of newsletter. There are many redactions. And a 1994 review of Applied …

Via a FOIA request, we have documents from the NSA about their banning of Furby toys. [...]

Late last year, the NSA declassified and released a redacted version of Lambros D. Callimahos’s Military Cryptanalytics, Part III. We just got most of the index. It’s hard to believe that there are any real secrets left in this 44-year-old volume. [...]

This is a newly unclassified NSA history of its reaction to academic cryptography in the 1970s: “ NSA Comes Out of the Closet: The Debate over Public Cryptography in the Inman Era,” Cryptographic Quarterly, Spring 1996, author still classified. [...]

This is a newly unclassified NSA history of its reaction to academic cryptography in the 1970s: “ New Comes Out of the Closet: The Debate over Public Cryptography in the Inman Era,” Cryptographic Quarterly, Spring 1996, author still classified. [...]

The NSA has just declassified and released a redacted version of Military Cryptanalytics, Part III, by Lambros D. Callimahos, October 1977. Parts I and II, by Lambros D. Callimahos and William F. Friedman, were released decades ago — I believe repeatedly, in increasingly unredacted form — and published by the late …