Performance Measurements of Tor Hidden Services in Low-Bandwidth Access Networks
ACNS '09 Proceedings of the 7th International Conference on Applied Cryptography and Network Security
Anonymity and monitoring: how to monitor the infrastructure of an anonymity system
IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews
Anonymous overlay network supporting authenticated routing
Information Sciences: an International Journal
Review: A survey on solutions and main free tools for privacy enhancing Web communications
Journal of Network and Computer Applications
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Providing anonymity for end-users on the Internet is a very challenging and difficult task. There are currently only a few systems that are of practical relevance for the provision of low-latency anonymity. One of the most important to mention is the Tor network that is based on onion routing. Practical usage of the system often leads to delays which are not tolerated by the average end-user. This, in return, discourages many of them from the use of such systems and hence indirectly lowers the protection of remaining users due to a smaller user base. In this paper we show to which extend overloaded nodes and links, as well as geographical diversity of nodes have an influence on the general performance of Tor communication channels. After that, we propose new methods of path selection for performance-improved onion routing which are based on actively measured latencies and estimated available capacities using passive observations of link-wise throughput.