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Group key management is an important framework to secure group communications. To improve the performance of re-keying for group key management in large scale systems, logical hierarchical key [1] was proposed . However, this approach does not consider the high re-keying cost of single user having multiple memberships. In this paper, we propose a membership-oriented group key structure to optimize the re-keying of multiple membership users. Users in the systems are grouped into key-groups based on their memberships. Therefore, the re-keying operations for members if these groups can be combined without sacrificing forward secrecy. An analysis shows that the cost of re-keying operations in large scale multiple membership group key management can be improved with the proposed group key management.

Item Type:	Refereed Conference Paper
Keywords:	group key management, large scale service, membership oriented
Research Division:	Information and Computing Sciences
Research Group:	Other information and computing sciences
Research Field:	Other information and computing sciences not elsewhere classified
Objective Division:	Information and Communication Services
Objective Group:	Communication technologies, systems and services
Objective Field:	Mobile technologies and communications
UTAS Author:	Malhotra, V (Dr Vishv Malhotra)
ID Code:	64876
Year Published:	2009
Web of Science® Times Cited:	1
Deposited By:	Information and Communication Technology
Deposited On:	2010-09-09
Last Modified:	2017-04-07
Downloads:	0