Attack and improvement of a certificateless two-party authenticated key agreement protocol
Zhang Quan-lin · Information technology newsletter · 2015
This paper analyzed a bilinear pairing-free certificateless two-party authenticated key agreement protocol proposed by Kim et al. The protocol did not satisfy an important security feature that was the basic impersonation attack under public key replacement attack. As well as,it mounted a specific attack on the protocol. Then an improved certificateless two-party authenticated key agreement protocol was presented in order to satisfy the missing security property. The analysis shows that the improved protocol can efficiently withstand public key replacement attack and satisfy some necessary security properties.