methodically modeling the tor network - usenix · 2020. 7. 22. · methodically modeling the tor...
TRANSCRIPT
Methodically Modeling the Tor Network
Workshop on Cyber Security Experimentation and Test
2012
Rob Jansen - U.S. Naval Research LaboratoryKevin Bauer – University of Waterloo
Nick Hopper – University of MinnesotaRoger Dingledine – The Tor Project
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Tor ExperimentationPros Cons
Live Tor Realistic, accurateHard to manage, privacy risks, lengthy deployment
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Tor ExperimentationPros Cons
Live Tor Realistic, accurateHard to manage, privacy risks, lengthy deployment
PlanetLab RealisticHard to manage, not scalable, inaccurate
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Modeling Decisions
➔ Network topology → clustering by country➔ Network latency → iPlane trace-routes➔ Node bandwidth capacity → Net Index➔ Tor relay sample → bin-median sampling➔ Tor relay bandwidth rates → Tor metrics➔ Tor web clients → 320 KiB, think [1,20] seconds➔ Tor bulk clients → 5 MiB, no thinking➔ Client, server placement → Tor metrics
