The customized 5G secondary authentication scheme combined with security protection strategy for electrical automation system

摘要

The birth of 5G technology provides basic communication network support for application innovation in the power industry, and continuously promotes the digital transformation of power grid enterprises. For instance, with wide bandwidth of 5G, one can achieve the digital substation based on VR/AR intelligent inspection. Due to extreme low latency and ultra high reliability, the accurate load shedding while emergency fault occurring and rapid differential protection for the power distribution network are coming true. As a result, the operational efficiency of the power grid and the quality of power supply can be improved significantly. It can be predicted that the closer integration of power energy network and 5G communication network will bring more information security challenges in the future, and the integration of the security protection requirements and 5G security capabilities has attracted more and more attention from the industria and academia. The 5G network slices can provide industry users with guaranteed resources to form a specific strong logic isolation network, within which the industry users can customize the secondary authentication protocol and algorithm. This work analyzed in detail the principles of 5G secondary authentication and safety performance. Based on the analyses, we propose a customized access authentication scheme combined with power industrial automation security protection strategy. The safety and effectiveness of our proposed scheme are verified by the security performance under various network attacks and the results show that the proposed secondary authentication scheme has strong ability to resist various network attacks and will provide higher security for power grid terminals through 5G network access.. To conclude, the proposed scheme can be viewed as a guidance for 5G application deployment in electrical industry.