Distributed Internet of Things equipment identity authentication device and method based on block chain

Abstract

The invention discloses a distributed Internet of Things equipment identity authentication device and method based on a block chain, and the method comprises the steps that Internet of Things equipment obtains equipment information, and generates access request information according to the equipment information; the block chain edge node performs credibility verification on the access request information, acquires a node certificate, node certificate information and a node signature when the credibility verification is passed, and generates node verification information; the Internet of Thingsequipment performs node verification according to the node verification information, acquires an equipment certificate, equipment certificate information and an equipment signature when the node verification is passed, and generates equipment verification information; and the block chain edge node performs equipment verification according to the equipment verification information, and determinesthat the equipment identity authentication succeeds when the equipment verification is passed. According to the invention, when the Internet of Things device is accessed, multiple verification is carried out between the Internet of Things device and the block chain node, so that the access security of the Internet of Things device is improved.

Description

technical field [0001] The present invention relates to the technical field of the Internet of Things, in particular to a block chain-based distributed Internet of Things device identity authentication device and method. Background technique [0002] In recent years, the popularization and rapid development of IoT technology have made IoT applications ubiquitous in daily life and play an important role in various fields. However, the limitations of IoT devices, the complex network environment, and the current access control system based on centralized and hierarchical structures have brought new challenges to the IoT field. First of all, due to problems such as wide distribution of equipment, complex application environment, and limited computing power, it will bring huge data infrastructure construction and cost investment to the centralized network model. Secondly, the current centralized platforms of the Internet of Things are incompatible with each other, which makes it...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to propose a block chain-based distributed IoT device identity authentication device and method, aiming to solve the technical problem of weak security in the process of IoT device identity authentication

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