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Many anonymity enhancing techniques have been proposed based on packet encryption to protect the communication anonymity of mobile ad hoc networks (MANETs). However, in this paper, we show that MANETs are still vulnerable under passive statistical traffic analysis attacks. To demonstrate how to discover the communication patterns without decrypting the captured packets, we present a novel statistical...
Traffic analysis is considered the most powerful strategy of disclosing the hidden communication relations in an anonymous communication system. Statistical traffic analysis attacks are even more subtle in that the attackers are usually eavesdroppers who do not modify the network's behaviors. Moreover, the attackers even do not need to look into the traffic content, which may be encrypted, in order...
Anonymous MANET routing relies on techniques such as re-encryption on each hop to hide end-to-end communication relations. However, passive signal detectors and traffic analyzers can still retrieve sensitive information from PHY and MAC layers through statistical traffic analysis. In this paper, we propose a statistical traffic pattern discovery (STPD) system. STPD intends to find out the sources...
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