AN IPLAYER ANONYMIZING INFRASTRUCTURE

We describe an IP-layer anonymizing infrastructure, called ANON, which allows server addresses to be hidden from clients and vice versa. ANON uses a network resident set of IP-layer anonymizing forwarders that can forward IP packets with encryption and decryption applied to their source and destination addresses. Using ANON, a client can send and receive packets to and from application serv-ers without knowing their IP addresses. We have designed and implemented a laboratory testbed for this anonymizing infrastructure. This paper gives an overview of the ANON architecture and its implementation, and describes its security threat models and our countermeasures.

[1]  Craig Partridge,et al.  Host Anycasting Service , 1993, RFC.

[2]  Paul F. Syverson,et al.  Anonymous connections and onion routing , 1997, Proceedings. 1997 IEEE Symposium on Security and Privacy (Cat. No.97CB36097).

[3]  Michael J. Freedman,et al.  A peer-to-peer anonymizing network layer , 2002 .

[4]  David Chaum,et al.  Untraceable electronic mail, return addresses, and digital pseudonyms , 1981, CACM.