P3LS: plausible deniability for practical privacy-preserving live streaming

Jeremie Decouchant, Antoine Boutet, Jiangshan Yu, Paulo Esteves-Verissimo

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

2 Citations (Scopus)


Video consumption is one of the most popular Internet activities worldwide. The emergence of sharing videos directly recorded with smartphones raises important privacy concerns. In this paper we propose P3LS, the first practical privacy-preserving peer-to-peer live streaming system. To protect the privacy of its users, P3LS relies on k-anonymity when users subscribe to streams, and on plausible deniability for the dissemination of video streams. Specifically, plausible deniability during the dissemination phase ensures that an adversary is never able to distinguish a user's stream of interest from the fake streams from a statistical analysis (i.e., using an analysis of variance). We exhaustively evaluate P3LS and show that adversaries are not able to identify the real stream of a user with very high confidence. Moreover, P3LS consumes 30% less bandwidth than the standard k-anonymity approach where nodes fully contribute to the dissemination of k streams.

Original languageEnglish
Title of host publicationProceedings -2019 IEEE 38th International Symposium on Reliable Distributed Systems, SRDS 2019
EditorsJosé Orlando Pereira, Evgenia Smirni
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages10
ISBN (Electronic)9781728142227, 0769567118
ISBN (Print)9781728142234
Publication statusPublished - 2019
EventSymposium on Reliable Distributed Systems 2019 - Lyon, France
Duration: 1 Oct 20194 Oct 2019

Publication series

NameProceedings of the IEEE Symposium on Reliable Distributed Systems
PublisherIEEE, Institute of Electrical and Electronics Engineers
ISSN (Print)1060-9857
ISSN (Electronic)2575-8462


ConferenceSymposium on Reliable Distributed Systems 2019
Abbreviated titleSRDS 2019
Internet address


  • P2P streaming
  • Plausible deniability
  • Privacy

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