Deniability - An alibi for users in P2P networks

Ofer Hermoni, Niv Gilboa, Eyal Felstaine, Sharon Shitrit

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

Peer to peer file sharing is 'booming', but meanwhile censorship of these networks and prosecution of users that share censored content are growing just as quickly. In this paper, we propose a novel notion of deniability as an easy and efficient method for users to avoid censorship and prosecution. The fundamental concept is that a given data element, which contains controversial or censored content, is also associated with neutral-content material. Hence, even a powerful adversary capable of monitoring all communication in the network and viewing the internal state of participating hosts is unable to prove a link between censored content and a user. The communication overhead required to retrieve a document is only four times greater than what is needed in a standard network. The storage required for a document is only twice as large as the document itself. Deniability is an elegant alternative to user anonymity in P2P file sharing networks. Systems that provide anonymity for users typically require greater overhead and do not guarantee anonymity against powerful, real-world adversaries.

Original languageEnglish
Title of host publication3rd IEEE/Create-Net International Conference on Communication System Software and Middleware, COMSWARE
PublisherIEEE Computer Society
Pages310-317
Number of pages8
ISBN (Print)9781424417971
DOIs
StatePublished - 1 Jan 2008
Event3rd IEEE/Create-Net International Conference on Communication System Software and Middleware, COMSWARE - Bangalore, India
Duration: 6 Jan 200810 Jan 2008

Publication series

Name3rd IEEE/Create-Net International Conference on Communication System Software and Middleware, COMSWARE

Conference

Conference3rd IEEE/Create-Net International Conference on Communication System Software and Middleware, COMSWARE
Country/TerritoryIndia
CityBangalore
Period6/01/0810/01/08

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