Research and application of zero trust based secure access to the power Internet of Things
KunSan Zhang, Jiaming Zheng, Jie Fu, Yongji Zhang, Ji Wen · 2023
The massive power grid IoT terminals are characterized by intelligence, networking, and interactivity, and are often deployed in uncontrolled environments. These massive IoT terminals are widely interconnected and interact, making it difficult to achieve low-cost terminal access authentication and efficient secure interaction technology. In order to comprehensively improve the comprehensive defense capability of the power Internet of Things security and address the deficiencies and deficiencies of current power Internet of Things terminal security protection, terminal authentication mechanism, and dynamic access control, this article first studies the power Internet of Things and zero trust security mechanism, and then conducts in-depth research on key technologies such as power Internet of Things terminal trustworthiness, power Internet of Things terminal layer device access authentication, and power Internet of Things dynamic access control, Propose a zero trust based security protection framework for the power Internet of Things, and combine it with the zero trust security protection system. In the actual environment of the power Internet of Things, study the security protection architecture of the power Internet of Things, and achieve the security protection requirements of the perception layer, network layer, and application layer of the power Internet of Things. In the scenario of secure access to distributed power sources, method validation is carried out. In response to common flooding attacks, packet attacks, and malicious code attacks, the zero trust architecture based secure access method to the power Internet of Things can effectively detect and timely block it, avoiding attackers from controlling the power Internet of Things terminals to carry out network attacks on the smart grid and triggering power grid security incidents.