Towards Measuring Resilience in Anonymous Communication Networks (short paper)

© 2015 ACM. Prior research on anonymous communication networks has focused, to a large extent, on achieving, measuring, and evaluating anonymity properties. In this work we address another important security property that has so far received much less attention, namely resilience against denial-of-service attacks that degrade the performance of the network. We formally define resilience and propose a metric for quantifying the resilience of anonymous communication networks (ACNs) against active adversaries. Our metric expresses the degradation in quality of service of an ACN as the decrease in performance resulting from the adversarial removal or disabling of network nodes. We illustrate the practicality of the metric by applying it to a simulated version of the Tor network, and providing an evaluation of the resilience of Tor towards various adversarial strategies.

ISBN:9781450338202

Jaar van publicatie:2015