Distributed Trusted Authentication Method for Smart Grid Distribution Terminals

In order to ensure the integrity of distribution metering terminals, this paper proposes a distributed trustworthy authentication method for smart grid distribution terminals. Firstly, the structural design of blockchain data is accomplished using the InterPlanetary File System (IPFS) and the HPACK block body compression method. Subsequently, an intelligent contract based on elliptic curve encryption algorithm is introduced to facilitate node registration and distributed authentication. Finally, a Practical Byzantine Fault Tolerance (PBFT) consensus algorithm is proposed, incorporating a reward and punishment mechanism. This utilizes a voting model to optimize the practical Byzantine fault-tolerant algorithm, ensuring consistency of data among nodes. Experimental results demonstrate that this terminal trustworthy authentication method can achieve a more secure and efficient authentication for distribution metering terminals.