A 5G-based industrial control security communication system and method

Abstract

The present invention relates to a 5G-based industrial control security communication system and method, including a cloud and at least two control terminals; the cloud includes a certificate server, a cloud security module and an industrial control server; the control terminal includes a 5G communication module, a control terminal security module and Industrial control module; the industrial control server communicates with the 5G communication module through the 5G network, and the control terminal is connected by the field bus. The cloud security module and the control terminal security module provide password and storage services. The password service includes random number generation, signature verification calculation, Encryption and decryption operations, session key generation and hash operations; the industrial control server calls the cloud security module password service, and the industrial control module calls the control terminal security module password and storage services; the certificate server generates public key certificates for the cloud and the control terminal, and the public key The certificate public key is written into the security module of the control terminal; the cloud security module and the security module of the control terminal store the corresponding private key to realize identity authentication and group secure encrypted communication between control modules.

Description

Technical field: [0001] The invention belongs to the technical field of industrial control communication, and specifically relates to a 5G-based industrial control safety communication system and method for ensuring safe encrypted communication between multiple industrial control modules on a field bus. Background technique: [0002] Field bus (Field bus) is a technology applied to the production site to implement two-way, serial, multi-node digital communication between field devices and between field devices and control devices. It mainly solves the digital communication between field devices such as controllers, intelligent instruments and meters, and actuators in the industrial field, as well as the information transmission between these field control devices and advanced control systems. As the basis of the industrial data communication network, it communicates the connection between the field-level control equipment and the higher control management layer in the produc...

AI Technical Summary

Problems solved by technology

[0003] However, while the fieldbus brings convenience, quickness and practicality to the communication between multiple industrial control modules, there are also potential safety hazards that cannot be ignored.

For example, the identity of the industrial control module is counterfeited, and the information transmitted between the industrial control modules is eavesdropped, tampered with, replayed, etc. These security threats are likely to cause major accidents, serious economic losses or other adverse effects

At the same time, in the industrial control environment, the storage resources and processing capabilities of the industrial control modules themselves are limited (such as data and communication processing capabilities, storage capabilities, etc.), and in order to meet the needs of flexible production, the industrial control modules between The communication relationship may change at any time. Therefore, if you want to store all possible public key certificates or public keys of all industrial control modules that may have a communication relationship with it in an industrial control module, it will cause storage burden and inflexibility

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