Forensic Investigation of the OneSwarm Anonymous Filesharing System

My paper Forensic Investigation of the OneSwarm Anonymous Filesharing System, written in collaboration with Swagatika Prusty and Brian Neil Levine, has been published in the ACM Conference on Computer and Communications Security (CCS 2011). In it:

  • We show a weaknesses of the OneSwarm system to a practical, statistical timing attack, allowing attackers to determine if a peer is the source of a file.

  • We correct the original analysis of the system’s robustness against collusion attacks and show it is less resistant than previously believed.

  • We show that an application of a known TCP-based attack can determine a peer is the source of a file, if that peer has disabled rate-limiting in their client.

Marc Liberatore
Marc Liberatore
Senior Teaching Faculty

My research interests include anonymity systems, file and network forensics, and computer science pedagogy.