Service architecture of IoT terminal connection based on blockchain identity authentication system

The Internet of Things is a highly integrated and integrated application of information technology that can better meet the needs of people's development. With the popularity of the Internet of Things, the number of Internet of Things devices has increased, and the communication between devices and devices has become more complicated. Because the Internet of Things has some common problems with the Internet, a more effective, secure and trusted IoT platform has become the focus of many research scholars. Blockchain, as a decentralized, non-tamperable and highly credible technology, fits well with the development trend of networking. Identity authentication is an important part of the service architecture and can effectively solve the security in the Internet of Things. Hidden dangers. Therefore, in view of the low efficiency and lack of security in the traditional IoT server architecture, this paper proposes a blockchain-based networked identity authentication system. Firstly, according to the characteristics of the blockchain, the key technologies of the blockchain are briefly explained. Then, the overall design scheme design, the user end system design and the equipment end system design of the identity authentication system. Finally, the experimental platform is built, and the functional testing of the blockchain platform, device and client is carried out respectively The throughput of the system is obtained by the block rate and the outbound time of the blockchain under the condition of the privacy blockchain. The memory usage and the corresponding traffic consumption during the process of creating the wallet and data upload are analyzed to verify the stability of the system and to verify the rationality of the IoT identity authentication system based on the blockchain.