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Event Invitations in Privacy-Preserving DOSNs: Formalization and Protocol Design
KTH, School of Computer Science and Communication (CSC), Theoretical Computer Science, TCS.ORCID iD: 0000-0003-1025-826X
KTH, School of Computer Science and Communication (CSC), Theoretical Computer Science, TCS.ORCID iD: 0000-0002-7102-8153
KTH, School of Computer Science and Communication (CSC), Theoretical Computer Science, TCS.ORCID iD: 0000-0001-5742-5462
2014 (English)In: Secure IT Systems: 19th Nordic Conference, NordSec 2014, Tromsø, Norway, October 15-17, 2014, Proceedings / [ed] Karin Bernsmed,Simone Fischer-Hübner, Springer Publishing Company, 2014, , 2 p.291-292 p.Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Online Social Networks (OSNs) have an infamous history of privacy and security issues. One approach to avoid the collection of massive amounts of sensitive user data at a central point is a decentralized architecture.

An event invitation feature - allowing a user to create an event and invite other users who then can confirm their attendance - is part of the standard functionality of OSNs. Implementing this feature in a Privacy-Preserving Decentralized Online Social Network (DOSN) is non-trivial because there is no fully trusted broker to guarantee fairness to all parties involved.

In this work we look into decentralized protocols for implementing event invitation features. We formalize possible security and privacy properties of such a feature and propose a secure implementation allowing different types of information related to the event (e.g., how many people are invited/attending, who is invited/attending) to be shared with different groups of users (e.g., only invited/attending users).

The results can be applied in the context of Privacy-Preserving DOSNs, but might also be useful in other domains such as Collaborative-Working Environment (CWE) and their corresponding collaborative-specific tools (i.e., groupware).

Place, publisher, year, edition, pages
Springer Publishing Company, 2014. , 2 p.291-292 p.
Series
Lecture Notes in Computer Science, ISSN 0302-9743
Keyword [en]
Client-server systems, Complex services, Cryptographic key, Formalization, Online social networks, P2P applications, P2P system, Protocol design, Privacy, User coordination mechanisms, User
National Category
Computer Science Telecommunications
Research subject
Computer Science; Computer Science
Identifiers
URN: urn:nbn:se:kth:diva-153741DOI: 10.1007/978-3-319-11599-3Scopus ID: 2-s2.0-84910084090ISBN: 978-3-319-11598-6 (print)ISBN: 978-3-319-11599-3 (print)OAI: oai:DiVA.org:kth-153741DiVA: diva2:760258
Conference
19th Nordic Conference, NordSec 2014, Tromsø, Norway, October 15-17, 2014
Funder
Swedish Foundation for Strategic Research , FFL09-0086Swedish Research Council, 2009-3793
Note

Qc 20141119

Available from: 2014-11-03 Created: 2014-10-08 Last updated: 2014-11-19Bibliographically approved

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Rodríguez-Cano, GuillermoGrescbach, BenjaminBuchegger, Sonja

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