Analysis and improvement of an authenticated multiple key exchange protocol

In 2010, Vo et al. (2010) [7] proposed an enhancement of authenticated multiple key exchange protocol based on Lee et al.’s protocol. In this paper, we will show that Vo et al.’s multiple key exchange protocol cannot resist reflection attack. It means that their protocol fails to provide mutual authentication. Furthermore, we propose an improvement of Vo et al.’s protocol. Our proposed protocol with reflection attack resilience can really provide mutual authentication.