Abstract : A reputation protocol computes the reputation of an entity by aggregating the feedback provided by other entities in the system. Reputation makes entities accountable for their behavior. Honest feedback is clearly a pre-requisite for accurate reputation scores. However, it has been observed that entities often hesitate in providing honest feedback, mainly due to the fear of retaliation. We present a privacy preserving reputation protocol which enables entities to provide feedback in a private and thus uninhibited manner. The protocol, termed k-shares, is oriented for decentralized environments. The protocol has linear message complexity under the semi-honest adversarial model, which is an improvement over comparable reputation protocols.
Type de document :
Communication dans un congrès
Kai Rannenberg; Vijay Varadharajan; Christian Weber. 25th IFIP TC 11 International Information Security Conference (SEC) / Held as Part of World Computer Congress (WCC), Sep 2010, Brisbane, Australia. Springer, IFIP Advances in Information and Communication Technology, AICT-330, pp.253-264, 2010, Security and Privacy - Silver Linings in the Cloud. 〈10.1007/978-3-642-15257-3_23〉
https://hal.inria.fr/hal-01054511
Contributeur : Hal Ifip
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Soumis le : jeudi 7 août 2014 - 12:02:20
Dernière modification le : jeudi 19 avril 2018 - 14:38:04
Document(s) archivé(s) le : mercredi 26 novembre 2014 - 01:32:29
Omar Hasan, Lionel Brunie, Elisa Bertino. k-Shares: A Privacy Preserving Reputation Protocol for Decentralized Environments. Kai Rannenberg; Vijay Varadharajan; Christian Weber. 25th IFIP TC 11 International Information Security Conference (SEC) / Held as Part of World Computer Congress (WCC), Sep 2010, Brisbane, Australia. Springer, IFIP Advances in Information and Communication Technology, AICT-330, pp.253-264, 2010, Security and Privacy - Silver Linings in the Cloud. 〈10.1007/978-3-642-15257-3_23〉. 〈hal-01054511〉
