Towards a Censorship Analyser for Tor

Analysing censorship incidents targeting popular circumvention tools such as Tor can be a tedious task. Access to censoring networks is typically difficult to obtain and remote analysis is not always possible. Analysis is however feasible if users behind the censoring networks are given the opportunity to help.

In this paper, we propose a lightweight censorship analyser for Tor which is meant to be run by volunteering users. The analyser automatically gathers relevant data and the final report is sent back to the Tor developers. Our design builds on existing software and should be easy to bundle and deploy.