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Abstract : |
Providing security support for large ad hoc wireless networks is challenging due to their unique characteristics, such as mobility, channel errors, dynamic node joins and leaves, and occasional node break-ins. In this report, we exploit these characteristics and present our design that sup-ports ubiquitous security for mobile nodes, scales to network size, and is robust against adversary break-ins. In our design, we distribute the functionality of conventional security servers, specifi-cally the authentication services, so that each individual node can potentially provide other nodes certification services. Centralized management is minimized and the nodes in the network col-laboratively self-secure themselves. We propose a suit of fully distributed and localized protocols that facilitate practical deployment. Our protocols also feature communication efficiency to con-serve the wireless channel bandwidth, and independency from both the underlying transport layer protocols and the network layer routing protocols., |
