Internet of Things equipment authentication method based on block chain

Abstract

The embodiment of the invention discloses an Internet of Things equipment authentication method based on a block chain. The method comprises the following specific steps: establishing a hybrid model of fog computing, a cloud server and the block chain for performing data processing on heterogeneous data generated by Internet of Things equipment connected to the Internet of Things; processing heterogeneous data generated by the Internet of Things equipment through fog calculation to form authentication data; sending a data entity of the authentication data to the cloud server through fog computing for data storage, sending an index and a Hash value of the authentication data to a blockchain for uplink, then carrying out whole-network publishing on the Internet of Things, and meanwhile, enabling the Internet of Things equipment to record a public and private key pair for identifying the identity of the Internet of Things equipment on a chain of the blockchain; enabling other Internet ofThings devices connected to the Internet of Things to perform signature verification on the Internet of Things device providing the public and private key pair in the blockchain to obtain the ownership of access and use of data, thereby realizing cooperation among multiple manufacturers and interconnection and intercommunication under the condition of device information privacy protection.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of the Internet of Things, in particular to a method for authenticating an Internet of Things device based on a block chain. Background technique [0002] The traditional Internet of Things (IOT) faces many problems, such as the lack of a unified standard for a large number of access devices and the inability to integrate them into a whole. [0003] Although the combination of IOT and cloud computing has greatly promoted the development of IOT, the shortcomings of the centralization of cloud computing itself have also limited its development in many ways, such as: IOT relies too much on centralized institutions and those Companies that provide cloud computing services, which will lead to the possibility of data tampering and data control by those institutions with too much power. [0004] As another example, a blockchain-based medical data sharing model pointed out in "Research on ...

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Problems solved by technology

[0002] The traditional Internet of Things IOT faces many problems, such as the lack of a unified standard for a large number of access devices and the inability to integrate them into a whole

[0003] Although the combination of IOT and cloud computing has greatly promoted the development of IOT, the shortcomings of the centralization of cloud computing itself have also limited its development in many ways, such as: IOT relies too much on centralized institutions and those Companies that provide cloud computing services, which can lead to the possibility of data tampering and data control by institutions with excessive power

[0004] As another example, a blockchain-based medical data sharing model pointed out in "Research on Blockchain-Based Medical Data Sharing Model" uses merkel trees to record storage information, which can solve the problem of data sharing in individual medical institutions, but Because its medical data is homogeneous, its data needs to have a sharing mechanism, and among IoT devices, most IoT devices are heterogeneous, which lacks the authentication of data communication brought about by heterogeneous devices in IoT scenarios and data privacy issues

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