Research on Adaptive Dynamic Access Control Model Based on Blockchain and Token

Abstract

The new power system presents new features such as massive, decentralized, multiple types of equipment and user access, more complex interactions, and faster response speed. The zero-trust security model still has problems such as the single-point failure risk of permission control and the inability to balance dynamic fine-grained permission adjustment and real-time response. Based on this, this paper proposes an adaptive dynamic access control model based on blockchain and token. First, build a decentralized authorization management architecture based on blockchain smart contracts to provide users with reliable and intelligent authorization services. Secondly, an authorization technology based on short-term tokens is proposed, which realizes adaptive dynamic access authority adjustment through user trust evaluation and smart contract automatic discrimination. Finally, an intelligent identity authentication mechanism based on user behavior data analysis is designed to support the adaptive update of tokens. Experiments have verified that this model has certain advantages in accurate and adaptive dynamic authorization, which can provide a reference for the improvement of the zero-trust model.