Design And Research Of Intelligent Hardware Trust Model Based On Blockchain

With the continuous advancement of science and technology,modern society is moving towards an intelligent world.More and more intelligent hardware is being applied to all corners of human society,supporting various activities of human society.However,in today's society where smart hardware is booming and information explosion,the security issues behind it are getting worse.Therefore,designing a trust model that conforms to intelligent hardware characteristics to solve the security problem of intelligent hardware has become an important research direction.In addition,current Internet devices include a trust model of intelligent hardware,provided that there is a trusted third party,which causes the authentication system to fail to work once the connection to the central authentication server or the central server fails.In view of this problem,combined with the characteristics of intelligent hardware,this paper introduces blockchain technology and designs a blockchain-based intelligent hardware trust model(BC-Trust model),which uses blockchain technology to realize distributed network point-to-point Based on the characteristics of secure transactions,a smart hardware mutual trust and mutual authentication model was constructed.The BC-Trust model solves the problem of establishing a trust relationship in a non-central network environment by the consensus mechanism and the encryption algorithm,and solves the security problem of the authentication information from the source,making the interaction record difficult to tamper and non-repudiation.In the trust model,this paper designs a consensus mechanism and authentication certificate for intelligent hardware,and adopts a hybrid encryption method.The consensus mechanism can ensure the consistency of the blockchain data in the complex IoT environment,and the certification certificate realizes the standardization of the certification.The consensus mechanism and the certificate together complete the security certification of the intelligent hardware.In intelligent hardware networks,blockchain technology has natural advantages.Its hash function,timestamp and random number design not only improve the security of the system,but also provide a complete set of security mechanisms.In intelligent hardware networks,blockchain technology has natural advantages,and its data structure and smart contract design can not only improve the security of the system,but also enable the blockchain to be flexibly deployed to intelligent hardware.Finally,this paper completed the electronic door lock security enhancement system on the intelligent hardware,and carried out comprehensive verification and testing.The final results show that the BC-Trust model can be flexibly deployed on intelligent hardware,and the BC-Trust model can improve the security and reliability of intelligent hardware interaction.