Title: Tree-based Multicast Key Management in ubiquitous computing environment

Authors: Lin Yao, Xiangwei Kong, Guowei Wu, Chi Lin, Qingna Fan

Addresses: School of Electronics and Information Engineering and School of Software, Dalian University of Technology, Dalian, 116024, China. ' School of Electronics and Information Engineering and School of Software, Dalian University of Technology, Dalian, 116024, China. ' School of Software, Dalian University of Technology, Dalian, 116621, China. ' School of Software, Dalian University of Technology, Dalian, 116621, China. ' School of Software, Dalian University of Technology, Dalian, 116621, China

Abstract: A Tree-based Multicast group Key Management (TMKM) protocol for ubiquitous computing is proposed to generate, distribute, and update the group key. The whole group is divided into the server layer and the user layer, and the user layer is further divided into subgroups. Every subgroup is initialised as a balanced binary tree. We employ hierarchical group key management method for the whole topology and centralised group key management method for subgroup, so TMKM takes advantage of centralised and distributed key group management. Compared with some other group key management protocols, TMKM shows higher superiority on security, scalability and computation complexity.

Keywords: ubiquitous computing; multicast key management; group key management; security; scalability; computational complexity.

DOI: 10.1504/IJAHUC.2011.041613

International Journal of Ad Hoc and Ubiquitous Computing, 2011 Vol.8 No.1/2, pp.27 - 35

Published online: 28 Jul 2011 *

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