Reputation in P2P Anonymity Systems
Roger Dingledine, Nick Mathewson · 2003
Decentralized anonymity systems tend to be unreliable, because users must choose nodes in the network without knowing the entire state of the network. Reputation systems promise to improve reliability by predicting network state. In this paper we focus on anonymous remailers and anonymous publishing, explain why the systems can benefit from reputation, and describe our experiences designing reputation systems for them while still ensuring anonymity. We find that in each example we first must redesign the underlying anonymity system to support verifiable transactions.