Exploring Decentralization Dimensions of Social Networking Services: Adversaries and Availability
2012 (English)In: Proceedings of the 1st ACM International Workshop on Hot Topics on Interdisciplinary Social Networks Researc, 2012, 49-56 p.Conference paper (Refereed)
Current online Social Networking Services (SNS) are orga-nized around a single provider and while storage and func-tionality can be distributed, the control over the service be-longs to one central entity. This structure raises privacy con-cerns over the handling of large-scale and at least logicallycentralized collections of user data. In an effort to protectuser privacy and decrease provider dependence, decentral-ization has been proposed for SNS. This decentralization haseffects on availability, opportunities for traffic analysis, re-source requirements, cooperation and incenctives, trust andaccountability for different entities, and performance.In this paper, we explore the spectrum of SNS implemen-tations from centralized to fully decentralized and severalhybrid constellations in between. Taking a systematic ap-proach of SNS layers, decentralization classes, and replica-tion strategies, we investigate the design space and focus ontwo issues as concrete examples where the contrast of ex-treme ends of the decentralization spectrum is illustrative,namely potential adversaries and churn-related profile avail-ability. In general, our research indicates that hybrid ap-proaches deserve more attention as both centralized as wellas entirely decentralized systems suffer from severe draw-backs.
Place, publisher, year, edition, pages
2012. 49-56 p.
IdentifiersURN: urn:nbn:se:kth:diva-107762DOI: 10.1145/2392622.2392630ScopusID: 2-s2.0-84871348269ISBN: 978-1-4503-1549-4OAI: oai:DiVA.org:kth-107762DiVA: diva2:577976
HotSocial'12, August 12, 2012, Beijing, China.
FunderICT - The Next Generation
QC 201301152012-12-172012-12-172013-09-06Bibliographically approved