Reliable Data Interaction Scheme Based on Oblivious Transfer Technology in Smart Grid

With the accelerated transformation of the development of new power systems, the data interaction between the data center and the edge of the business system is increasingly frequent, which challenges the reliability and privacy security of the data in the interaction process. The existing data interaction schemes based on data anonymity usually rely on the trusted third party (TTP). However, the TTP has the risk of a single point of failure and internal leakage. At the same time, the terminal can easily be hijacked and become a medium to disrupt system decisions maliciously dur to the lack of security protection of edge networks. To solve these problems, this paper proposes a reliable data exchange scheme based on the oblivious transfer (OT) technology in the smart grid. Experiments show that this scheme can achieve the protection of user privacy without excessive overhead while getting rid of the dependence on the TTP.