Abstract
As the next-generation power grid system, the smart grid can realize the balance of supply and demand and help in communication security and privacy protection. However, real-time power consumption data collection might expose the users’ privacy information, such as their living habits and economic conditions. In addition, during the process of data transmission, it may lead to data inconsistency between the user side and the storage side. Blockchain provides tamper-resistant and traceable characteristics for solving these problems, and ring signature schemes provide an anonymous authentication mechanism. Therefore, in this work, we consider the applications of ring signature scheme in smart grid based on blockchain. We introduce the notion of multi-authority traceable ring signature (MA-TRS) scheme for distributed setting. In our scheme, there is an auditing node that can distinguish the identity of the real signer from the ring without any secret information. Last but not least, we prove that the proposed scheme is unforgeable, anonymous, and traceable.
Highlights
The rapid development of society and economy has driven the increasing demand for electricity of the people, which requires that the power supply system is more convenient, stable, and secure
Based on the above analysis, we present a multi-authority traceable ring signature (MA-TRS) scheme for smart grid based on blockchain
We construct a multi-authority traceable ring signature (MA-TRS) scheme for smart grid based on blockchain, which is mainly comprised of the following five parts: system setup, user registration, user report generation, data storage, and user data tracing
Summary
The rapid development of society and economy has driven the increasing demand for electricity of the people, which requires that the power supply system is more convenient, stable, and secure. Some researchers have proposed the ring signature schemes with anonymity revocation [29, 30], while it is based on single authority, which is not suitable for blockchain applications. Based on the above analysis, we present a multi-authority traceable ring signature (MA-TRS) scheme for smart grid based on blockchain. (2) We construct an MA-TRS scheme for blockchainbased smart grid based on ID-based ring signature It has the properties of unforgeability, anonymity, and traceability. (3) In our scheme, the auditing node is responsible for tracing the real signer when the power consumption data of the electricity users is inconsistent with that of the blockchain network, while the auditing node does not possess any secret information.
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