Research on Data Multi-Scene Searchable Encryption System Based on Computer Smart Grid Security Data Fusion Technology

Smart grid under cloud architecture has entered a new environment of open integration. Power data is typically stored in encrypted form on cloud servers. This paper presents an encryption system based on fully homomorphic encryption for data exchange schemes. The system architecture consists of four micro-service modules. The system hardware consists of two modules. The encryption chip model used by the encryption module is LCS2110. The acquisition module is composed of carrier meter, concentrator and collector. The data supervision module uses the weak centralized management mode to supervise the electricity data transaction. On the basis of building the architecture, the system functions are realized through the combination of hardware and software. The system uses the hash SHA256 algorithm to generate a set of code word groups as the index of records. When searching, users enter multiple keywords and generate corresponding trap doors. The trap door accurately matches the index and feeds back all the matching results to the user. Experimental results show that the proposed scheme can resist known ciphertext attack, known background attack and collusion attack.