An Internet of Things access control method with dynamic consensus based on consortium blockchain
An access control and access control strategy technology, applied in the field of Internet of Things, can solve problems such as affecting the security and fairness of the access control system, affecting the performance of access control, and low transaction verification efficiency.
Active Publication Date: 2021-03-16
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)
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Problems solved by technology
However, in existing blockchain-based IoT access control schemes, the consensus algorithms used in the consensus process, such as Proof of Work (PoW) or Practical Byzantine Fault Tolerance (PBFT), lead to low transaction verification efficiency, which in turn affects Access control performance restricts the application and promotion of this technology
In addition, pre-determined and unchanged consensus nodes are also difficult to adapt to the dynamic changes of the Internet of Things network environment, which affects the security and fairness of the access control system itself
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[0064] The present invention discloses an Internet of Things access control method with dynamic consensus based on alliance blockchain. In the present invention, such as figure 1 As shown, an IoT scenario is divided into multiple Internet of Things (IoT) domains, and each IoT domain contains an IoT gateway and some other IoT devices. In view of the relatively stronger hardware configuration and computing power of the IoT gateway, a CA-certified IoT gateway is selected as a peer node to join the consortium blockchain network, and a chain code is deployed on the IoT gateway to provide access control related interface function. The IoT device is connected to the IoT gateway in the corresponding domain and uses the MQTT protocol for data exchange related to access control. The consortium blockchain network is built based on Hyperledger Fabric.
[0065] In the present invention, we propose an access control method with dynamic consensus based on consortium blockchain to achieve e...
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The present invention provides an Internet of Things access control method with dynamic consensus based on the alliance block chain, which divides an Internet of Things scene into multiple IoT domains, and each IoT domain includes an IoT gateway and IoT devices, and selects through the CA The certified IoT gateway joins the consortium blockchain network as a peer node, and deploys the chain code on the IoT gateway to provide access control, access policy management, and trust evaluation-related interface functions, and the IoT device is connected to the IoT gateway in the corresponding domain And use the MQTT protocol for data interaction related to access control; in addition, this method can dynamically select IoT gateways as consensus sorting nodes according to the IoT domain trust evaluation results, and use the Raft consensus mechanism for consensus sorting. The beneficial effect of the present invention is that: the present invention provides an access control method for the Internet of Things with dynamic consensus based on the alliance block chain, so as to realize efficient and reliable access control.
Description
technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to an Internet of Things access control method with dynamic consensus based on a consortium blockchain. Background technique [0002] The rapid development of high-speed networks and the widespread distribution of IoT devices have brought new security risks and challenges to the IoT environment. IoT devices often contain a large amount of sensitive data related to privacy, and most IoT devices are difficult to implement strict and perfect security measures due to resource constraints. Access control can prevent unauthorized access from violating privacy, and has become a key research content in the field of IoT. The traditional centralized access control method uses a centralized authorization entity, which is prone to the problem of single point of failure. In addition, due to the heterogeneity and dynamics of IoT devices, devices in different organizations often n...
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IPC IPC(8): H04L29/08H04L29/06G16Y30/10
CPCG16Y30/10H04L63/0823H04L63/10H04L67/1097H04L67/12
Inventor 张伟哲冯禹铭方滨兴
Owner HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)