We propose an identity management system that supports role-based pseudonymsthat are bound to a given set of services (service contexts) and supportthe use of reputation systems. Our proposal offers a solution for the problemof providing privacy protection and reputation mechanisms concurrently.The trust information used to evaluate the reputation of users is dynamic andassociated to their pseudonyms. In particular, our solution does not requirethe support or assistance from central authorities during the operation phase.Moreover, the presented scheme provides inherent detection and mitigation ofSybil attacks. Finally, we present an attacker model and evaluate the securityand privacy properties and robustness of our solution.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:kau-27767 |
| Date | January 2011 |
| Creators | Martucci, Leonardo, Ries, Sebastian, Mühlhäuser, Max |
| Publisher | Technische Universität Darmstadt, Telecooperation Lab (TK), 1Technische Universität Darmstadt, Telecooperation Lab (TK), 1Technische Universität Darmstadt, Telecooperation Lab (TK), Japan : Information Processing Society of Japan |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Article in journal, info:eu-repo/semantics/article, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | Journal of Information Processing, 1882-6652, 2011 |
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