Anonymous multi-dimensional data aggregation privacy protection method for smart power grid

Abstract

The invention discloses an anonymous multi-dimensional data aggregation privacy protection method for a smart power grid. The method comprises the following steps: initializing system parameters by a trusted mechanism; enabling the intelligent electric meter and the fog node to register to a trusted mechanism; enabling an intelligent electric meter in the intelligent power grid to collect and encrypt multi-dimensional data generated by the power grid; verifying and aggregating fog node data; processing and cancelling the wrong intelligent electric meter; and decrypting and analyzing the data of the control center. According to the method, user privacy is guaranteed through pseudo identity and pallier homomorphic encryption, calculation and communication resources are saved by encoding multi-dimensional data into a single ciphertext, efficient verification of power data is achieved through a Hash message verification technology, efficient processing and storage of power grid data are achieved by introducing a fog model framework, the power grid data processing efficiency is effectively improved, the communication cost is reduced, the safety of the power grid data is ensured, in addition, the processing of the error intelligent electric meter is considered, and the flexibility of the intelligent power grid is improved.

Description

technical field [0001] The invention belongs to the field of smart grid information security, and in particular relates to a smart grid-oriented anonymous multi-dimensional data aggregation privacy protection method. Background technique [0002] Smart grid is the direction and trend of electric power industry development. Driven by the Internet of Things, the smart grid has developed rapidly. Smart terminals of the Internet of Things are deployed in large numbers and are used in multiple links such as power generation, power transmission, power distribution, and power consumption. In order to effectively store and manage a large amount of data generated by various intelligent terminals, with the concept of edge computing and other concepts, a solution based on the fog computing model has been proposed. In the smart grid data processing and privacy protection processing scheme modeled on fog computing, a large amount of data generated by various smart terminals is first co...

AI Technical Summary

Problems solved by technology

These schemes effectively aggregate power data to protect user privacy, but ignore data storage and computing efficiency issues

Or some schemes consider the combination of data aggregation and fog computing model architecture, but the collected data is single, and multi-dimensional data is not combined, and the encryption algorithm used is too old, the calculation overhead and communication overhead are too large, and there are few fog computing schemes Conduct research on the entry and exit of smart meters

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