Two historical documents on traffic analysis
27 August 2008
The NSA has kindly declassified two classic historical documents from the NSA Technical Journal on traffic analysis:
- Introduction to Traffic Analysis– April 1958 – Vol. III, No. 2 by Lambros D. Callimahos
- Chatter Patterns: A Last Resort– October 1957 – Vol. II, No. 4 by W. E. Stoffel
The first document is an extract from the classic Military Cryptonalytics, and contains the basics necessary to solve the Zendian Problem exercise. The second deals with linkability of operators, when traffic analysis countermeasures are deployed, thought their chatter habits.