Reputation Systems for Anonymous Networks
PETS '08 Proceedings of the 8th international symposium on Privacy Enhancing Technologies
Sybil proof anonymous reputation management
Proceedings of the 4th international conference on Security and privacy in communication netowrks
Barter trade improves message delivery in opportunistic networks
Ad Hoc Networks
A verifiable, centralized, coercion-free reputation system
Proceedings of the 8th ACM workshop on Privacy in the electronic society
Privacy and liveliness for reputation systems
EuroPKI'09 Proceedings of the 6th European conference on Public key infrastructures, services and applications
On the limits of privacy in reputation systems
Proceedings of the 10th annual ACM workshop on Privacy in the electronic society
Proceedings of the 8th ACM SIGSAC symposium on Information, computer and communications security
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In a mobile information dissemination network mobile users, equipped with wireless devices, exchange information in a spontaneous manner whenever they come into communication range. Users have to specify what kind of information they are looking for and what kind of information they can offer. A priori there is no relation between users, literally spoken, they don't know each other and confidence in newly collected information might be low. This work presents two reputation schemes, a simple and an extended version, for mobile information dissemination networks that, based on user ratings, increase a user's confidence in some information source. As reputation systems collect sensitive personal information and monitor users' behavior, privacy is an essential requirement especially in a mobile scenario that is neglected by many existing approaches. Using cryptographic group signatures and the concept of an observer, our extended reputation scheme guarantees high user privacy.