Rethinking the security of some authenticated group key agreement schemes

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Paper 2004/363

Rethinking the security of some authenticated group key agreement schemes

Qiang Tang and Chris J. Mitchell

Abstract

In this paper we analyse three improved authenticated group key agreement schemes, all of which are based on the conference key distribution systems proposed by Burmester and Desmedt. We show that all the schemes suffer from a type of impersonation attack, although these schemes are claimed to be secure.

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Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Published elsewhere. this paper has not been accepted or published
Keywords: authenticated group key bilinear map impersonation attack
Contact author(s): qiang tang @ rhul ac uk
History: 2004-12-20: received
Short URL: https://ia.cr/2004/363
License: CC BY