Access Control of Data with Different Sensitivities in Power Substations Based on Improved ABE Algorithm

In the power grid, due to the diversity of data sensitivity, a reasonable encryption strategy is designed to ensure that only users with corresponding attributes can access data of specific sensitivity. Therefore, a data access control method based on an improved ABE algorithm for different sensitivity levels in power substations is proposed. The ABE algorithm is improved and a CP-ABE encryption scheme is proposed to achieve precise control of data access with different sensitivities in power substations. The experimental results show that the proposed method consumes less decryption time, ensures access, improves privacy security while reducing resource waste, and effectively reduces the storage space occupied by controlling data access.