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Issue No. 09 - September (2011 vol. 10)
ISSN: 1536-1233
pp: 1345-1358
Karim El Defrawy , University of California Irvine, Irvine
Gene Tsudik , University of California, Irvine, Irvine
In most common mobile ad hoc networking (MANET) scenarios, nodes establish communication based on long-lasting public identities. However, in some hostile and suspicious settings, node identities must not be exposed and node movements should be untraceable. Instead, nodes need to communicate on the basis of their current locations. While such MANET settings are not very common, they do occur in military and law enforcement domains and require high security and privacy guarantees. In this paper, we address a number of issues arising in suspicious location-based MANET settings by designing and analyzing a privacy-preserving and secure link-state based routing protocol (ALARM). ALARM uses nodes' current locations to securely disseminate and construct topology snapshots and forward data. With the aid of advanced cryptographic techniques (e.g., group signatures), ALARM provides both security and privacy features, including node authentication, data integrity, anonymity, and untraceability (tracking-resistance). It also offers protection against passive and active insider and outsider attacks. To the best of our knowledge, this work represents the first comprehensive study of security, privacy, and performance tradeoffs in the context of link-state MANET routing.
Privacy, communication system security, communication system routing, mobile communication, location-based communication, military communication.

G. Tsudik and K. E. Defrawy, "ALARM: Anonymous Location-Aided Routing in Suspicious MANETs," in IEEE Transactions on Mobile Computing, vol. 10, no. , pp. 1345-1358, 2010.
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