http://tttyx2vwp7ihml3vkhywwcizv6nbwrikpgeciy3qrow7l7muak2pnhad.onion/Publications.html
This paper describes how a freely available
system, onion routing, can be used to provide privacy for a wide
variety of Internet services, including Virtual Private Networks, Web
browsing, e-mail, remote login, and electronic cash. "Protocols using Anonymous Connections: Mobile Applications," Security
Protocols, 5th International Workshop Proceedings, B.