Research on Data Aggregation Scheme of Power Internet of Things in Cloud-Edge-End Environment

Aiming at the data security problems existing in the traditional data aggregation scheme in the power Internet of Things, this paper proposes a fault-tolerant privacy-protecting data aggregation scheme FTPPDA for power Internet of Things in cloud-edge-end environment. In this scheme, the security of Paillier homomorphic encryption algorithm is used to ensure the privacy of users' data, and the security of elliptic curve digital signature algorithm is used to ensure the authentication and integrity of users' data. In addition, a fault-tolerant processing mechanism at the smart meter end is set up to ensure the smooth operation of the scheme when some smart meters cannot work normally. The safety analysis proves that the scheme meets the requirements of the design goal. Performance analysis shows that this scheme has better calculation performance and communication performance compared with the existing schemes.