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Kyung-Hyune Rhee, Young-Ho Park and Gene Tsudik*
Division of Electronic, Computer and Telecommunication Engineering
Pukyong National University
Busan, 608-737, Korea
+Information and Computer Science
University of California at Irvine
Irvine, CA 92697, U.S.A.
In recent years, mobile ad-hoc networks have received a great deal of attention in
both academia and industry because they provide anytime-anywhere networking services.
As wireless networks are rapidly deployed in the future, secure wireless environment
will be mandatory. In this paper, we describe a group key management architecture and
key agreement protocols for secure communication in mobile ad-hoc wireless networks
(MANETs) overseen by Unmanned Aerial Vehicles (UAVs). We use the Implicitly Certified
Public Keys method, which reduces the overhead of the certificate validation
checking process and improves computational efficiency. The architecture uses a
two-layered key management approach, where a group of nodes is divided into: 1) cell
groups consisting of ground nodes, and 2) control groups consisting of cell group managers.
The chief benefit of this approach is that the effects of a membership change are
restricted to the single cell group.
Received April 7, 2003; revised July 25, 2003 & January 9, 2004; accepted April 1, 2004.
Communicated by Shiuhpyng Shieh.
* The early version of this paper was presented at the 3rd International Workshop on Information Security Application (WISA 2002), Jeju, Korea, Aug. 28-30, 2002.