Research on secure transmission and storage of energy IoT information based on Blockchain

In recent years, the scale of the energy Internet of Things has been rapidly increased, and the number of IoT device connections has grown exponentially. Massive device access makes the network more open and complex, and brings huge information security risks. Privacy and transmission storage issues have become one of the important factors restricting the development of the energy Internet of Things. In view of the security status of the Internet of Things, how to solve the problem of trust, security and privacy in the energy Internet of Things through the decentralization, transparency and credibility of the blockchain. Firstly, the blockchain technology is analyzed, and the blockchain consensus mechanism and smart contract technology are combined with the mechanisms of identity verification and access authorization to solve the security problem in the Internet of Things application. Secondly, the blockchain is used as the underlying universality of the energy Internet of Things. Technology, providing a trusted infrastructure, building a blockchain-based end-to-end IoT security framework in conjunction with network and trusted hardware; finally implementing distributed storage and tamper resistance of data in the data blockchain, and improving the utility Byzantine fault-tolerant (PBFT) mechanism consensus algorithm, improve data registration efficiency; realize resource and data transactions in the transaction blockchain, and improve transaction efficiency and privacy protection through improved algorithm based on partial blind signature algorithm. The results show that the framework is safe, effective and feasible, and can cope with most scenarios in the energy Internet of Things.