A New Fuzzy-Based Approach for Anonymity Quantification in E-Services

Wiem Hammami, Ilhem Souissi and Lamjed Ben Said
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Wiem Hammami: Higher Institute of Management of Tunis, University of Tunis, Tunis, Tunisia
Ilhem Souissi: National School of Computer Science, Tunis, Tunisia
Lamjed Ben Said: Higher Institute of Management of Tunis, University of Tunis, Tunis, Tunisia

International Journal of Information Security and Privacy (IJISP), 2014, vol. 8, issue 3, 13-38

Abstract: In online services, making anonymous transactions is a crucial need in order to ensure the user's trust towards a particular service. In this context, anonymity quantification is required to provide at which level the e-service respects the user privacy regarding the link between his/her identity and actions. Most of the existing researches are limited to the anonymity quantification in a static way and based, mainly, on the user's set size. In this paper, the authors propose a new multi-agent based approach for anonymity quantification in e-services considering dynamic and mobile environment's characteristics. The authors' quantification is based on the fuzzy logic. It is based not only on the anonymity set size, which is always known in advance, but also on a set of other criteria such as the number of users and the priori and posteriori knowledge about internal and external attackers of an e-service. The carried out experimentations show competitive and better results when compared to other recently proposed anonymity quantification.

Date: 2014
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