Abstract

The broadcast nature of radio transmissions renders communications in mobile ad hoc networks more vulnerable to malicious traffic analysis than their wired counterparts. As a result, adversaries can easily locate and trace mobile nodes based on their invariant identifiers so as to launch pinpoint attacks. To tackle this problem, this paper presents a novel anonymous on-demand routing protocol, called MASK, which nicely fulfills the routing and packet forwarding tasks without disclosing the identities of participating nodes under a rather strong adversarial model. MASK provides the desirable sender and receiver anonymity, as well as the relationship anonymity of the sender and receiver. It is also resistant to a wide range of adversarial attacks.

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