Data Access Control Method of Power Terminal Based on Trust and Reputation

Aiming at the problems of poor data confidentiality, complex communication overhead and large amount of computation in traditional power terminal data access control, a data access control method of power terminal based on trust and reputation was proposed. Firstly, a flexible data access control system of power terminal was designed based on cloud computing technology, and key generation, key segmentation, proxy re-encryption and decryption were adopted to obtain the trust level and user reputation of the end users. Then, the data access of power terminal was controlled. Finally, the security analysis and performance analysis of the user’s trust and reputation evaluation results were carried out through the encryption system. Experimental results showed that the proposed method can effectively reduce the communication overhead and computational complexity of data access, improve data confidentiality, and reduce the application cost of power terminal equipment, and has stability and effectiveness.