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A weakness in the Bresson-Chevassut-Essiari-Pointcheval's Group Key Agreement scheme for low-power mobile devices

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3 Author(s)
Junghyun Nam ; Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon-si, South Korea ; Seungjoo Kim ; Dongho Won

In this letter, 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.

Published in:

Communications Letters, IEEE  (Volume:9 ,  Issue: 5 )