Design Requirements for a Tor Censorship Analysis Tool
Philipp Winter · 2013
These problems show that there is a strong need for a lightweight tool which can assist in analyzing censorship events. This tool should be run by censored users and perform several tests to gain a rough understanding of how and if Tor could be blocked in the respective network. The results of these tests should make it back to the Tor project and are used to improve circumvention technology such as obfsproxy [7] and to document censorship [1]. This technical report discusses the design requirements for such a censorship analysis tool. We list the desired features, discuss how they can be implemented and we give a rough overview of the software design. After all, this technical report should serve as basis for the development and deployment of the censorship analysis tool.