Survey on research and standardization of 5G security technology

Abstract

With the commercialization of fifth generation wireless systems (5G) and their development in vertical fields such as the Internet of Things, security issues are increasingly gaining attention. This paper provides the latest survey on 5G network security pertaining to potential threats, security architecture, and security technology. The survey begins with the potential security vulnerabilities of 5G, which can be classified according to system availability, information integrity, authentication, privacy, and confidentiality protection. Then, threats and attack methods encountered at different levels are analyzed. Subsequently, the 5G security architecture according to relevant standards is briefly described. Based on the threats and security architecture, security technologies are reviewed based on three categories of 5G and beyond 5G (B5G), such as the physical, network, and application layers. Finally, the survey concludes by presenting observations on potential future directions of 5G and B5G security.