[Resource Topic] 2004/251: Attacks on Bresson-Chevassut-Essiari-Pointcheval's Group Key Agreement Scheme for Low-Power Mobile Devices

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Attacks on Bresson-Chevassut-Essiari-Pointcheval’s Group Key Agreement Scheme for Low-Power Mobile Devices

Authors: Junghyun Nam, Seungjoo Kim, Dongho Won


In this paper, we show that
Bresson-Chevassut-Essiari-Pointcheval’s group key agreement scheme
does not meet the main security properties: implicit key
authentication, forward secrecy, and known key security. Also, we
propose an improved version which fixes the security flaws found
in the scheme.

ePrint: https://eprint.iacr.org/2004/251

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