Cryptology ePrint Archive: Report 2004/260

Secure Group Communications over Combined Wired/Wireless Networks

Junghyun Nam, Seungjoo Kim, Hyungkyu Yang, and Dongho Won

Abstract: This paper considers the fundamental problem of key agreement among a group of parties communicating over an insecure public network. Over the years, a number of solutions to this problem have been proposed with varying degrees of complexity. However, there seems to have been no previous systematic look at the growing problem of key agreement over combined wired/wireless networks, consisting of both high-performance computing machines and low-power mobile devices. In this paper we present an efficient group key agreement scheme well suited for this networking environment. Our construction is intuitively simple, and yet offers a scalable solution to the problem.

Category / Keywords: cryptographic protocols / Group key agreement, combined wired/wireless networks, mobile devices, DDH assumption

Date: received 10 Oct 2004

Contact author: jhnam at dosan skku ac kr

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Version: 20041011:065032 (All versions of this report)

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