Paper 2015/489

Scalable and private media consumption with Popcorn

Trinabh Gupta, Natacha Crooks, Whitney Mulhern, Srinath Setty, Lorenzo Alvisi, and Michael Walfish

Abstract

We describe the design, implementation, and evaluation of Popcorn, a media delivery system that hides clients' consumption (even from the content distributor). Popcorn relies on a powerful cryptographic primitive: private information retrieval (PIR). With novel refinements that leverage the properties of PIR protocols and media streaming, Popcorn scales to the size of Netflix's library (8000 movies) and respects current controls on media dissemination. The dollar cost to serve a media object in Popcorn is 3.87 times that of a non-private system.

Metadata
Available format(s)
PDF
Category
Applications
Publication info
Published elsewhere. MINOR revision.USENIX NSDI
Keywords
private information retrievalimplementationcryptographic protocol
Contact author(s)
trinabh @ cs utexas edu
History
2016-02-29: last of 3 revisions
2015-05-22: received
See all versions
Short URL
https://ia.cr/2015/489
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2015/489,
      author = {Trinabh Gupta and Natacha Crooks and Whitney Mulhern and Srinath Setty and Lorenzo Alvisi and Michael Walfish},
      title = {Scalable and private media consumption with Popcorn},
      howpublished = {Cryptology ePrint Archive, Paper 2015/489},
      year = {2015},
      note = {\url{https://eprint.iacr.org/2015/489}},
      url = {https://eprint.iacr.org/2015/489}
}
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