http://tttyx2vwp7ihml3vkhywwcizv6nbwrikpgeciy3qrow7l7muak2pnhad.onion/Publications.html
This paper's contribution is a detailed
specification of the implemented onion routing system, a vulnerability
analysis base on this specification, and performance results. "Internet Communication Resistant to Traffic Analysis," 1997 NRL
Review, Washington, DC, April 1997, pp. 109-111. Determining who is talking to whom (called traffic analysis) is an
important source of intelligence information.