A Practical Scheme of Smart Grid Privacy Protection

In view of the shortcomings of security loopholes, high overhead and single data types in the current smart grid privacy protection scheme, a practical smart grid privacy protection scheme is proposed in this paper. In terms of security, the combination of an improved Pilliar algorithm and an identity-based pseudonym algorithm realizes a combination of data aggregation technology and identity anonymity technology, making the user's privacy more secure. In the aspect of system overhead, an identity based batch signature verification algorithm is adopted, which makes the number of bilinear pairings calculated only 3 times and has nothing to do with the number of users. Moreover, the improved Paillier algorithm used also greatly reduces the computational overhead. In terms of data types, the combination of super-incremental digital sequences and ladder power consumption fusion algorithms allows the control center to obtain a variety of data. Therefore, this scheme has the characteristics of security, high efficiency and diversification of data types. (paper)