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Undetectable Communication: The Online Social Networks Case

Beato, F; De Cristofaro, E; Rasmussen, KB; (2014) Undetectable Communication: The Online Social Networks Case. In: Miri, A and Hengartner, U and Huang, NF and Jøsang, A and Garcia-Alfaro, J, (eds.) 2014 Twelfth Annual International Conference on Privacy, Security and Trust (PST 2014): Proceedings. Institute of Electrical and Electronics Engineers (IEEE): 2014 Twelfth Annual International Conference on Privacy, Security and Trust (PST 2014). Green open access

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Abstract

Online Social Networks (OSNs) provide users with an easy way to share content, communicate, and update others about their activities. They also play an increasingly fundamental role in coordinating and amplifying grassroots movements, as demonstrated by recent uprisings in, e.g., Egypt, Tunisia, and Turkey. At the same time, OSNs have become primary targets of tracking, profiling, as well as censorship and surveillance. In this paper, we explore the notion of undetectable communication in OSNs and introduce formal definitions, alongside system and adversarial models, that complement better understood notions of anonymity and confidentiality. We present a novel scheme for secure covert information sharing that, to the best of our knowledge, is the first to achieve undetectable communication in OSNs. We demonstrate, via an open-source prototype, that additional costs are tolerably low.

Type: Proceedings paper
Title: Undetectable Communication: The Online Social Networks Case
Event: PST 2014: 12th IEEE Annual Conference on Privacy, Security and Trust, 23 - 24 July 2014, Toronto, Canada
Location: Toronto, Canada
Dates: 23 July 2014 - 24 July 2014
ISBN-13: 9781479935024
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/PST.2014.6890919
Publisher version: https://doi.org/10.1109/PST.2014.6890919
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Servers, Facebook, Security, Indexes, Internet, Entropy
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: https://discovery.ucl.ac.uk/id/eprint/1508483
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