ABSTRACT
Privacy in mobile ad hoc networks has new semantics in addition to the conventional notions for infrastructure networks. Mobility enabled by wireless communication has significantly changed privacy issues and anonymity research in many ways. In particular, mobility requires ad hoc routing schemes to transmit control packets frequently in an open wireless medium. The routing traffic facilitates adversaries in conducting various attacks threatening the network security and privacy. In this chapter we introduce new privacy demands associated with ad hoc networks and new privacy threats under passive routing attacks. We then investigate new routing 160design principles for defending against the new threats. The chapter also demonstrates through examples on how the effectiveness of the attacks can be quantified and how the attacks can visualize critical information about a network. Finally, a countermeasure, namely, an on-demand, anonymous, and untraceable routing protocol for a mobile ad hoc network is introduced.
