Analysis of Two Authenticated Key Exchange Protocols

The design of secure authenticated key exchange (AKE) protocols has always been a notorious hard problem. Many famous AKE protocols have been found flaws since they were finished. In this paper, we analyze two AKE protocols, which were proposed by Hassan et al. in 2007 and 2008. Then we present key compromise impersonation attack and ephemeral key compromise attack to their two AKE protocols.