The pynchon gate: a secure method of pseudonymous mail retrieval

  • Authors:
  • Len Sassaman;Bram Cohen;Nick Mathewson

  • Affiliations:
  • Katholieke Universiteit Leuven;BitTorrent;The Free Haven Project

  • Venue:
  • Proceedings of the 2005 ACM workshop on Privacy in the electronic society
  • Year:
  • 2005

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Abstract

We describe the Pynchon Gate, a practical pseudonymous message retrieval system. Our design uses a simple distributed-trust private information retrieval protocol to prevent adversaries from linking recipients to their pseudonyms, even when some of the infrastructure has been compromised. This approach resists global traffic analysis significantly better than existing deployed pseudonymous email solutions, at the cost of additional bandwidth. We examine security concerns raised by our model, and propose solutions.