Abstract: Most of the current results information of secure results management system is managed through centralized servers, and the data storage is highly bound to the management database at all levels, which easily leads to problems such as data leakage and tampering, and is also impossible to effectively monitor the operation of the relevant personnel. With the development of blockchain technology, its decentralization and other features are gradually attracting attention. In this paper, a blockchain-based security management system for socialized examination results is proposed. The system uses homomorphic encryption to encrypt the result data and then store it in IPFS through a P2P network and blockchain technology. The keywords are sent to the blockchain after homomorphic encryption when the data is queried, and the ciphertext data is retrieved, followed by the query results returned to the user. The authenticity and validity of the data information in the result management system can be guaranteed by P2P network and blockchain technology, thus a safe and reliable system is achieved to ensure the fairness and impartiality of socialized examinations.

Key words: blockchain, socialized examination, score management, security