Integrated multilevel secure spatial database multiparty data security exchange based on hybrid national encryption algorithm

In order to achieve hierarchical storage and efficient management of power grid data, this paper proposes a multi-party data security exchange method for an integrated multi-level secure spatial database of the power grid based on a hybrid national security algorithm. A hybrid solution combining SM9 national encryption algorithm and access control technology has been proposed. By using the SM9 public key cryptography algorithm for key negotiation and digital signature, multi-level secure spatial database multi-party data encryption and decryption processing is completed; Designed a role-based access control mechanism to further refine data access permissions and enhance data security; Establish a secure transmission channel for power grid data based on CFL SSL secure exchange protocol to achieve multi-party data exchange. The experimental results show that this scheme not only ensures the security of power grid data, but also improves the efficiency and reliability of data exchange.