Looking for a paper topic (or a thesis topic)? Here's a Tor research area that needs more attention. The short version is: if we prevent the really loud users from using too much of the Tor network, how much can it help?
We've instrumented Tor's entry relays so they can rate-limit connections from users, and we've instrumented the directory authorities so they can change the rate-limiting parameters globally across the network. Which parameter values improve performance for the Tor network as a whole? How should relays adapt their rate-limiting parameters based on their capacity and based on the network load they see, and what rate-limiting algorithms will work best? We'd love to work with you to help answer these questions. Read more here: https://blog.torproject.org/blog/research-problem-adaptive-throttling-tor-clients-entry-guards --Roger
