This invention discloses a method and
system for managing network identity
authentication credentials for smart security hardware, relating to the field of
Internet of Things (IoT) security technology. The method includes: registering a decentralized identity identifier for each smart security hardware device on a
blockchain, and storing a public key credential associated with the decentralized identity identifier on the
blockchain as an initial identity credential; real-time collection of
behavioral data sequences generated by the smart security hardware during operation, inputting them into a pre-trained global anomaly recognition agent, and outputting a behavioral deviation
score; dynamically generating a current
trust score, uploading the current
trust score and corresponding anomaly event information to the
blockchain for evidence storage; and monitoring changes in the
trust score based on a
smart contract, automatically executing the corresponding
access control policy when the current trust
score falls below a preset trust threshold to adjust the communication permissions of the smart security hardware in the network. This invention effectively improves the reliability and security of network identity
authentication for smart security hardware.