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Performance characteristics of region-based group key management in mobile ad hoc networks

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3 Author(s)
I. -R. Chen ; Dept. of Comput. Sci., Virginia Tech., USA ; Jin-Hee Cho ; Ding-Chau Wang

We propose and analyze a scalable and efficient region-based group key management protocol for secure group communications in mobile ad hoc networks. For scalability and dynamic reconfigurability, we take a region-based approach by which group members are broken into region-based subgroups and leaders in subgroups securely communicate with each other to agree on a group key in response to membership change and member mobility events. We show that the secrecy requirement for group communication is satisfied. Further, there exists an optimal regional size that minimizes the total network communication cost as a result of efficiently trading inter-regional vs. intra-regional group key management overheads. We give an analytical expression of the cost involved which allows the optimal regional size to be identified, when given a set of parameter values characterizing a group communicating system in mobile ad hoc networks

Published in:

IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing (SUTC'06)  (Volume:1 )

Date of Conference:

5-7 June 2006