A Secure Method of Pseudonymous Mail Retrieval
Len Sassaman, Bram Cohen, Nick Mathewson · 2005
We describe the Pynchon Gate, a practical pseudonymous message retrieval system. Our design uses a simple distributedtrust 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 trac 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.