Cryptology ePrint Archive: Report 2003/260
An Improved ID-based Authenticated Group Key Agreement Scheme
Xinjun Du, Ying Wang, Jianhua Ge, Yumin Wang
Abstract: Authenticated group key agreement problem is important in many modern collaborative and distributed applications. There are two ID-based authenticated group key agreement schemes have been proposed by Choi et al. and us, which are based on bilinear pairings and BD scheme. Recently, Zhang and Chen propose an impersonation attack on the two schemes, which means the schemes are not fully authenticated. In this paper, we propose an improved ID-based authenticated group key agreement scheme which can resist this attack.
Category / Keywords: cryptographic protocols / Authenticated group key agreement, Bilinear pairings, Identity-based cryptography
Date: received 17 Dec 2003
Contact author: dxjwy2002 at hotmail com
Available format(s): PDF | BibTeX Citation
Version: 20031220:163941 (All versions of this report)
Short URL: ia.cr/2003/260
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