A non-malleable group key exchange protocol robust against active insiders

Desmedt, Yvo, Pieprzyk, Josef, Steinfeld, Ron, & Wang, Huaxiong (2006) A non-malleable group key exchange protocol robust against active insiders. Lecture Notes in Computer Science Volume : Information Security, 4176, pp. 459-475.

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In this paper we make progress towards solving an open problem posed by Katz and Yung at CRYPTO 2003. We propose the first protocol for key exchange among n ≥2k+1 parties which simultaneously achieves all of the following properties:

  1. Key Privacy (including forward security) against active attacks by group outsiders,

  2. Non-malleability — meaning in particular that no subset of up to k corrupted group insiders can ‘fix’ the agreed key to a desired value, and

  3. Robustness against denial of service attacks by up to k corrupted group insiders.

Our insider security properties above are achieved assuming the availability of a reliable broadcast channel.

Impact and interest:

15 citations in Scopus
11 citations in Web of Science®
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ID Code: 74280
Item Type: Journal Article
Refereed: Yes
Additional Information: Proceedings of the 9th International Conference, ISC 2006, Samos Island, Greece, August 30 - September 2, 2006
DOI: 10.1007/11836810_33
ISSN: 0302-9743
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 23 Jul 2014 03:05
Last Modified: 22 Jun 2017 02:01

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