Internet of Things device authentication method and device based on blockchain

By adopting a blockchain-based distributed authentication method in IoT devices and splitting the centralized authentication service to edge computing nodes, the problems of low efficiency, poor scalability and single point failure of the traditional architecture are solved, efficient and secure device authentication and data sharing are achieved, and the access security and availability of IoT devices are improved.

CN116633566BActive Publication Date: 2025-09-26INDUSTRIAL AND COMMERCIAL BANK OF CHINA
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Patent Information

Application Number
CN202310847412.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-11
Publication Date
2025-09-26
Estimated Expiration
2043-07-11

AI Technical Summary

Technical Problem

The traditional IoT device authentication architecture suffers from low efficiency, poor scalability, and single point failure when the number of devices explodes. At the same time, there are problems with secure data sharing and trust between different authentication nodes.

Method used

A distributed authentication method based on blockchain is adopted to split the centralized authentication service to edge computing nodes to form a distributed authentication node group. The trust and information transparency between nodes are managed through blockchain technology. Voting arbitration and consensus algorithms are combined to verify intrusion events, achieving multiple verifications and information security.

Benefits of technology

It improves the efficiency, scalability and high availability of IoT device authentication, solves the problems of low efficiency, poor scalability and single point failure of traditional architecture, ensures information security and trust between nodes, and realizes effective detection of intrusion incidents.

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Abstract

The present invention discloses a blockchain-based IoT device authentication method and apparatus, relating to the fields of IoT security and blockchain technology. The method comprises: receiving an access authentication request and device data sent by an IoT device node; performing a second test on the access authentication request; the second test comprising a device identity token authentication test, an identity authentication challenge test, and a key legitimacy test; receiving an event analyzer's analysis result on whether the access authentication request is an intrusion event; and when the second test passes and the access authentication request is not an intrusion event, determining that the IoT device node has passed authentication, and uploading notification information indicating that the IoT device has passed authentication and the device data to a cloud authorization node. The present invention is used to improve the efficiency, scalability, high availability, and information security of IoT device authentication.
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