Block chain efficient authentication method based on trusted group

Abstract

The invention discloses a block chain efficient authentication method based on a trusted group. The method comprises the following steps: 1) constructing a block chain system oriented to an Internet of Things application by using an alliance chain; 2) enabling nodes in the Internet of Things to register to the block chain system, wherein the nodes comprise user equipment U and a sensing terminal ST, and selecting a plurality of registered STs as aggregation nodes SN; 3) initiating an access request by the node U to the block chain system, enabling the ST to receive the request and forward the request to the SN, and sending a consensus message by the SN to the ST; 4) when the consensus calculation is completed, determining a trusted node TST according to a consensus result; and 5) forming a trusted device group by the obtained TSTs, selecting one TST from the group to authenticate the U, if the authentication is passed, broadcasting an authentication result to each node in the group, and when the U moves to the range of any TST in the group, enabling the TST to compare and verify the stored authentication result with the authentication result provided by the U, and if the verification is passed, providing a data access service for the U.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to an efficient authentication method for block chains based on trusted groups. Background technique [0002] The Internet of Things (IOT) connects a large number of smart devices in daily life, such as various sensor terminals and smart home appliances such as cameras, air conditioners, and lights. In recent years, the rise of 5G has promoted the development of the IOT field. Most of the information communicated and processed in the IoT field involves user privacy and device operation data. Identity authentication, as the first level of security protection for the IoT system, has become a research hotspot. [0003] In the field of Internet of Things, the bottleneck of identity authentication is mainly reflected in two aspects of performance and security: (1) Sensor devices with low computing power and low energy constitute the Internet of Things system, and these devices use ...

AI Technical Summary

Problems solved by technology

[0006] Although the security features of the traditional blockchain can meet some of the requirements for the security certification of the Internet of Things application system, the operation of the consensus mechanism and the cryptographic algorithm still consumes a large amount of storage resources, computing resources and network resources, which exceeds the capabilities of the terminal equipment.

At the same time, the security mechanism of the blockchain will cause a large network delay, poor user experience, and cannot meet the real-time requirements of the system

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