A Secure Efficient and Lightweight authentication protocol for 5G cellular networks: SEL-AKA

The upcoming Fifth Generation of mobile cellular networks 5G is expected to support a set of many requirements and new use cases. The main two user requirements are amplified data-rates at high-speed mobility and a robust and strong network security. Thus, the Third Generation Partnership Project (3GPP) published its first 5G security specifications recently in June 2018 and has been revised in December 2018. Although the security has been improved when compared to previous generations, our analysis recognizes some unrealistic system assumptions that are decisive for security as well as a number protocol edge cases that make 5G systems vulnerable to several attacks. In this paper, we propose a Secure Efficient and Lightweight authentication and Key Agreement protocol SEL-AKA of 5G cellular network taken into account the different limitations relieved in 5G-AKA and without relying on a Global Public Key Infrastructure. Analysis results obtained using the SPAN tool have proved that authentication and privacy objectives are met.