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Journal of Information Science and Engineering, Vol. 21 No. 2, pp. 415-428 (March 2005)

A Group Key Management Architecture for
Mobile Ad-hoc Wireless Networks*

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.

Keywords: key exchange, key agreement, group key management, implicit certificate, secure ad-hoc network

Full Text () Retrieve PDF document (200503_09pdf)

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.