Facet: Streaming over videoconferencing for censorship circumvention

Shuai Li, Mike Schliep, Nick Hopper

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

In this paper, we introduce Facet, an unobservable transport service for social video sites. Facet evades detection by Internet censors by streaming social videos over Skype calls, and applying a novel traffic-analysis countermeasure called video morphing. We report on the performance and security of a prototype implementation of Facet and find that a single Facet server can support roughly 20 si-multaneous sessions, while providing strong unobservability: using the best known traffic analysis methods, a censor seeking to block 90% of Facet calls would need to block over 40% of all Skype calls. An additional benefit of our prototype implementation is that it avoids the distribution problem: clients can use Facet without installing any additional software.

Original languageEnglish (US)
Title of host publicationProceedings of the ACM Conference on Computer and Communications Security
PublisherAssociation for Computing Machinery
Pages163-172
Number of pages10
ISBN (Electronic)9781450331487
DOIs
StatePublished - Nov 3 2014
Event13th Workshop on Privacy in the Electronic Society, WPES 2014, in Conjunction with the ACM Conference on Computer and Communications Security, ACM CCS 2014 - Scottsdale, United States
Duration: Nov 3 2014 → …

Publication series

NameProceedings of the ACM Conference on Computer and Communications Security
ISSN (Print)1543-7221

Other

Other13th Workshop on Privacy in the Electronic Society, WPES 2014, in Conjunction with the ACM Conference on Computer and Communications Security, ACM CCS 2014
CountryUnited States
CityScottsdale
Period11/3/14 → …

Keywords

  • Censorship resistance
  • Traffic analysis
  • Video conferencing

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