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2010
IEEE

Waiting for Anonymity: Understanding Delays in the Tor Overlay

9 years 14 days ago
Waiting for Anonymity: Understanding Delays in the Tor Overlay
Although Tor is the most widely used overlay for providing anonymity services, its users often experience very high delays. Because much of Tor usage is for Web applications, which are sensitive to latency, it is critical to reduce delays in Tor. To take an important step in this direction, we seek an in-depth understanding of delays in Tor. By taking snapshots of the entire Tor network within a short time window, we are able to study the delay distribution of the entire router population. We also monitor delays introduced by individual Tor routers over extended periods of time. Our results indicate that apart from delays introduced by routers, overlay network latency also plays a significant role in delays in Tor. We have also observed that at any time, there exist huge differences in the delays introduced by different routers. Our results reveal key performance characteristics of Tor system behavior and provide valuable insights for improving the Tor performance.
Prithula Dhungel, Moritz Steiner, Ivinko Rimac, Vo
Added 14 Feb 2011
Updated 14 Feb 2011
Type Journal
Year 2010
Where P2P
Authors Prithula Dhungel, Moritz Steiner, Ivinko Rimac, Volker Hilt, Keith W. Ross
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