Multi-Party Trust Computation in Decentralized Environments

Dimitriou, T. and Michalas, A. 2012. Multi-Party Trust Computation in Decentralized Environments. International Conference on New Technologies, Mobility and Security (NTMS). Istanbul 07 - 10 May 2012 IEEE . https://doi.org/10.1109/NTMS.2012.6208686

TitleMulti-Party Trust Computation in Decentralized Environments
AuthorsDimitriou, T. and Michalas, A.
TypeConference paper
Abstract

In this paper, we describe a decentralized privacy-preserving protocol for securely casting trust ratings in distributed reputation systems. Our protocol allows n participants to cast their votes in a way that preserves the privacy of individual values against both internal and external attacks. The protocol is coupled with an extensive theoretical analysis in which we formally prove that our protocol is resistant to collusion against as many as n-1 corrupted nodes in the semi-honest model. The behavior of our protocol is tested in a real P2P network by measuring its communication delay and processing overhead. The experimental results uncover the advantages of our protocol over previous works in the area; without sacrificing security, our decentralized protocol is shown to be almost one order of magnitude faster than the previous best protocol for providing anonymous feedback.

KeywordsDecentralized Reputation Systems
Security
Voter Privacy
Anonymous feedback
Year2012
ConferenceInternational Conference on New Technologies, Mobility and Security (NTMS)
PublisherIEEE
Accepted author manuscript
Publication dates
Published2012
Book titleNew Technologies, Mobility and Security (NTMS), 2012 5th International Conference on
ISBN9781467302296
Digital Object Identifier (DOI)https://doi.org/10.1109/NTMS.2012.6208686
Web address (URL) of conference proceedingshttp://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=6203453
Web address (URL)http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6208686&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F6203453%2F6203739%2F06208686.pdf%3Farnumber%3D6208686

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