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A Privacy-Preserving Routing Protocol Using Mix Networks in Opportunistic Networks

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This paper focuses on the problem of providing anonymous communications in opportunistic networks. To that end, we propose an approach using Mix networks that enables a relatively simple solution. Opportunistic networks present some constraints that make the deployment of typical network anonymity solutions difficult or infeasible. We show, utilizing simulations on the basis of real mobility traces, that the proposed solution is feasible for some scenarios by introducing a tolerable penalty in terms of message delay and delivery. To investigate the impact of routing strategies, we offer two different methods to select Mix nodes. From the experiment results, we show the trade-off between network performance and security.

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Articles publicats en revistes (Matemàtiques i Informàtica)

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A Privacy-Preserving Routing Protocol Using Mix Networks in Opportunistic Networks