Issue No. 04 - April (2009 vol. 20)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TPDS.2008.100
Ye Zhu , Cleveland State University, Cleveland
Riccardo Bettati , Texas A&M University, College Station
Measures for anonymity in systems must be on one hand simple and concise, and on the other hand reflect the realities of real systems. Such systems are heterogeneous, as are the ways they are used, the deployed anonymity measures, and finally the possible attack methods. Implementation quality and topologies of the anonymity measures must be considered as well. We therefore propose a new measure for the anonymity degree, that takes into account these various. We model the effectiveness of single mixes or of mix networks in terms of information leakage, and we measure it in terms of covert channel capacity. The relationship between the anonymity degree and information leakage is described, and an example is shown.
Anonymity, Covert Channel, Information Leakage
R. Bettati and Y. Zhu, "Information Leakage as a Model for Quality of Anonymity Networks," in IEEE Transactions on Parallel & Distributed Systems, vol. 20, no. , pp. 540-552, 2008.