[通信] 5G安全概览Overview_of_5G_security_technology.pdf

SCIENCE CHINA Information Sciences .REVIEW . August 2018, Vol. 61 081301:1–081301:25 /10.1007/s11432-017-9426-4 Overview of 5G security technology * Xinsheng JI, Kaizhi HUANG , Liang JIN, Hongbo TANG, Caixia LIU, Zhou ZHONG, Wei YOU, Xiaoming XU, Hua ZHAO, Jiangxing WU Ming YI National Digital Switching System Engineering Technological RD Center, Zhengzhou 450002, China Received 15 November 2017/Revised 10 February 2018/Accepted 26 February 2018/Published online 9 July 2018 Abstract The 5th-generation mobile communication system (5G) has higher security requirements than previous systems. Accordingly, international standard organizations, operators, and equipment manufactur- ers are focusing extensively on 5G security technology. This paper analyzes the security requirements of 5G business applications, network architecture, the air interface, and user privacy. The development trends of 5G security architecture are summarized, with a focus on endogenous defense architecture, which represents a new trend in 5G security development. Several incremental 5G security technologies are reviewed, includ- ing physical layer security, lightweight encryption, network slice security, user privacy protection, and block chain technology applied to 5G. Keywords 5G security, endogenous defense, mimic defense, physical layer security, lightweight encryption, network slice security, user privacy preservation, block chain Citation Ji X S, Huang K Z, Jin L,