An Internet of Things authentication method and device based on a block chain

Abstract

The embodiment of the invention provides an Internet of Things authentication method and device based on a block chain. The method comprises the following steps: receiving an access request sent by aterminal, and obtaining a digital signature of the terminal carried by the access request; Verifying the identity of the terminal according to the digital signature and pre-acquired public parametersof the terminal, and if the verification is passed, receiving the digital signature and opening the authority to the terminal; Wherein the public parameter is obtained according to a message broadcasted by the first node; And the first node is an edge node for registering the terminal to a block chain edge layer used on the block chain. The embodiment of the invention provides an Internet of Things authentication method and device based on a block chain. By combining the decentralized authentication of the block chain and the advantage that the computing and storage capacity is lowered to be close to the network edge device, the edge node can directly authenticate, the privacy of the terminal can be effectively protected, the edge security of the terminal can be protected, and the authentication speed can be increased.

Description

technical field [0001] The embodiment of the present invention relates to the field of communication technology, and in particular to a blockchain-based authentication method and device for the Internet of Things. Background technique [0002] The current blockchain technology provides users with excellent privacy protection and peer-to-peer services by virtue of its distributed consensus, decentralized ledger, and asymmetric encryption, and has received widespread attention in various fields of Industry 4.0. With the popularization of smart devices in social life, such as smart factories, smart cities, and smart homes, users' privacy is becoming more and more transparent. In order to strengthen the protection of users' personal information, realize data cooperation and sharing between platforms in these individual domains, and avoid the common disadvantages of high cost, high delay, and low efficiency in centralized platforms, the distributed authentication system based on ...

AI Technical Summary

Problems solved by technology

[0003] Limited by the huge number of smart devices and their widespread distribution, the Internet of Things model built solely on the blockchain network obviously cannot cover all smart devices

At the same time, the data flood generated by a large number of terminals also brings a great burden to the core network

However, most of the current research focuses on the authentication of devices, while ignoring the data congestion of the core network and the edge security near smart devices.

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