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Liling Cao,Wancheng Ge 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.10
Authentication with key agreement (AKA) protocols are implemented to provide identity authentication and session keys for communication entities. In order to reduce the heavy trust reliance on key generator center (KGC) in identity based AKA protocols, a certificateless based AKA (CLAKA) protocol for client-server environment without the third-party (i.e., KGC) is introduced in this paper. The proposed protocol is constructed based on elliptic curve cryptosystem (ECC) and multi-factor protections (such as password, biometrics, and smart card). Moreover, security proof based on BAN-logic is carried out and shows that our protocol can provide mutual authentication, user anonymity, dynamic identity and perfect forward security, and resist to user impersonation attack, server spoofing attack and privileged insider attack. Meanwhile, security and efficiency analysis shows that our proposed protocol outperforms the previous related ones.