A weakness in the Bresson-Chevassut-Essiari-Pointcheval's group key agreement scheme for low-power mobile devices
Junghyun Nam, Seungjoo Kim, Dong-Ho Won · IEEE Communications Letters · 2005
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.