Privacy data protection method of energy Internet users based on homomorphic encryption

Abstract:
When there is a lack of data in the energy Internet, the user privacy data protection method is difficult to aggregate the data normally, which increases the time overhead and communication overhead. Based on homomorphic encryption, a privacy data protection method for energy Internet users is proposed. The method establishes an energy internet architecture based on the deployment of energy by users, aggregators, control centers and key distribution centers. The dynamic identity information of user equipment is generated in the energy Internet architecture, and the account address is obtained through a series of one-way hash operations. The address is used to design the user privacy data encryption algorithm based on homomorphic encryption, and the aggregation threshold is added through the secret sharing scheme to ensure the security of individual data. The method finds the ciphertext data with the same confusion parameters as the fault table ciphertext, participates in the aggregation operation instead of the ciphertext, and then decrypts the data to complete privacy protection. Compared with the methods based on clustering weighting and differential privacy, this method has lower time overhead and communication overhead. While ensuring data integrity, it can reduce computing cost and improve execution efficiency.