A Privacy Preserving Distributed Reputation Mechanism

Emmanuelle Anceaume (1, 2) , Gilles Guette (2) , Paul Lajoie-Mazenc (1, 2, 3) , Nicolas Prigent (2) , Valérie Viet Triem Tong (2)

1 CIDER
2 CIDRE - Confidentialité, Intégrité, Disponibilité et Répartition
3 SUPELEC-Campus Rennes

Reputation systems allow to estimate the trustworthiness of entities based on their past behavior. Electronic commerce, peer-to-peer routing and collaborative environments, just to cite a few, highly benefit from using reputation systems. To guarantee an accurate estimation, reputation systems typically rely on a central authority, on the identification and authentication of all the participants, or both. In this paper, we go a step further by presenting a distributed reputation mechanism which is robust against malicious behaviors and that preserves the privacy of its clients. Guaranteed error bounds on the estimation are provided.

Mots clés: Distributed systems; Reputation; Privacy

Domaines: Informatique et théorie des jeux [cs.GT]

Emmanuelle Anceaume, Gilles Guette, Paul Lajoie-Mazenc, Nicolas Prigent, Valérie Viet Triem Tong. A Privacy Preserving Distributed Reputation Mechanism. International Conference on communications (ICC), Jun 2013, Budapest, France. 6 p. ⟨hal-00763212v3⟩