Secure Multi-party Computation Scheme of Shared Energy Storage Index Based on Blockchain Environment

With the rapid development of the shared energy storage market, an efficient comprehensive evaluation index system can reflect the effectiveness of the market construction. In order to meet the requirements of data authenticity and privacy protection in the computation of shared energy storage evaluation index, a secure multi-party computation (SMPC) scheme for shared energy storage index under blockchain environment is proposed. The scheme takes the characteristics of the hierarchical permissions of the alliance chain into account; and based on the multi-channel architecture, it protects the data encryption process against leakage of data privacy by means of homomorphic encryption method. Finally, an example is presented to verify the effectiveness of the proposed security multi-party computation scheme.