Provably Secure Certificateless Authenticated Key Agreement Protocol in the Standard Model

Inspired by the certificateless public key encryption scheme proposed by Jong et al, we present a new certificateless authenticated key agreement protocol (CLAK). It is provably secure in the standard model. CLAK protocol provides perfect forward secrecy. Compared with a certificateless authenticated key agreement protocol which is only provable secure in the random oracle model, the new protocol is improved with respect to the security properties, computation and communication cost.