Research on network security control based on blockchain technology in multi-domain Internet of Things
The Internet of things was more and more widely used,but it has the potential of poor network security and be-ing vulnerable to network attacks.To ensure the security of multi-domain Internet of things,the network security con-trol system of multi-domain Internet of things based on blockchain technology was designed.The security system was built using blockchain technology and mainly includes user and device layer,identity authentication layer and service layer.The identity authentication method of fingerprint sensing speech was designed,and the hash algorithm was used to recognize the feature of the fingerprint image and extract the hash value.To improve the security,the fingerprint image was embedded in the speech by digital watermark.The plaintext encryption and decryption methods were designed,and SM2 algorithm was used to generate random number,key derived function and hash algorithm respectively.To verify the performance of the security system of the Internet of thins,the security of fingerprint image identity authentication and plaintext encryption performance were tested.The test results show that the system could realize the identity identifica-tion of personnel and ensure the security of identity authentication,recognition accuracy reaches 90.The system could encrypt files with better performance,compared with RSA algorithm,the operation speed was increased by 23％,and the throughput was increase by 4.7％.
multi-domain Internet of thingsblockchain technologynetwork securit
万方数据
维普
