Zero-Trust Security Protection Architecture for Power Grid Based on FAHP Algorithm

In existing zero-trust grid security protection architectures, the intelligent trust platform incorporating static matching algorithms suffers from inefficiency and long adaptation cycles. To address this, the fuzzy analytic hierarchy process (FAHP) is introduced to improve and optimize the trust evaluation platform, ensuring the privacy of transmitted data and the security of the system through continuous evaluation and updating of trust values. During the data transmission process, the accessing entity is dynamically authorized based on the principle of least privilege. Finally, feasibility assessment is performed in the trusted access proxy to determine the reliability of the data. Simulation experiments validate the feasibility and effectiveness of the FAHP-based zero-trust grid security protection architecture.