LotusNet: Tunable privacy for distributed online social network services
Computer Communications
Towards robust and scalable peer-to-peer social networks
Proceedings of the Fifth Workshop on Social Network Systems
Contrail: enabling decentralized social networks on smartphones
Middleware'11 Proceedings of the 12th ACM/IFIP/USENIX international conference on Middleware
Social networking with frientegrity: privacy and integrity with an untrusted provider
Security'12 Proceedings of the 21st USENIX conference on Security symposium
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The explosive growth of online social networks (OSNs) and their wide popularity suggest the impact of OSNs on today's Internet. At the same time, concentration of vast amount of personal information within a single administrative domain causes critical privacy concerns. As a result, privacy-conscious users feel dis-empowered with today's OSNs. In this paper, we report on an on-going research work and introduce a privacy-aware decentralized OSN called \textit{porkut}. Our system exploits trust relationships in the social network for decentralized storage of OSN profiles and their content. By taking users' geographical locations and online time statistics into account, it also addresses availability and storage performance issues. We finally advocate indexing of social network content and present an approach for indexing in a privacy-preserving manner.