Rendezvous tunnel for anonymous publishing: Clean slate and tor based designs

Ofer Hermoni, Niv Gilboa, Eyal Felstaine, Yuval Elovici, Shlomi Dolev

Stabilization, Safety, and Security of Distributed Systems: 13th …, 2011

Anonymous communication, and in particular anonymous Peer-to-Peer (P2P) file sharing systems, have received considerable attention in recent years. In a P2P file sharing system, there are three types of participants: publishers that insert content into the system, servers that store content, and readers that retrieve content from the servers. Existing anonymous P2P file sharing systems confer partial anonymity. They provide anonymity to participant pairs, such as servers and readers or publishers and readers, but they do not consider the anonymity of all three types of participants.In this work we propose two solutions for anonymous P2P file sharing systems. Both of our solutions provide anonymity to all three types of participants. The proposed solutions are based on indexing by global hash functions (rather than an index server), dispersal of information, and three anonymity tunnels. Each anonymity …