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Communication method, system and device based on AUTBUS and medium

A communication method and bus technology, which is applied in transmission systems, bus networks, digital transmission systems, etc., can solve problems such as blank identity verification schemes and unsuitable identity verification schemes for AUTBUS buses, so as to ensure legality and avoid illegal devices and hackers The effect of accessing the communication network and ensuring communication security

Pending Publication Date: 2022-03-01
北京神经元网络技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the AUTBUS bus is a new type of high-speed industrial field bus, which is different from the common communication mechanism of the existing industrial bus. Therefore, the authentication scheme when the equipment of the existing industrial bus is connected is not suitable for the AUTBUS bus
However, in the prior art, the identity verification scheme when the device on the AUTBUS bus is connected is blank

Method used

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  • Communication method, system and device based on AUTBUS and medium
  • Communication method, system and device based on AUTBUS and medium
  • Communication method, system and device based on AUTBUS and medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] figure 1 It is a flowchart of a communication method based on the AUTBUS bus provided by Embodiment 1 of the present invention. The method is executed by a central control node (Central control node, CN). This embodiment is applicable to communication based on the AUTBUS bus. The terminal node (Terminal node, TN) performs identity verification to determine the legality of the TN. The method can be executed by a communication device based on the AUTBUS bus. The device can be implemented by software and / or hardware, and the device can be integrated in the In electronic equipment, such as CN equipment that communicates based on the AUTBUS bus, such as figure 1 As shown, the method specifically includes:

[0054] Step 110, in the network access request sent by the target TN based on the AUTBUS bus protocol, obtain TN certificate information, and verify whether the target TN public key in the TN certificate information is legal.

[0055] Wherein, the AUTBUS bus may also be...

Embodiment 2

[0079] figure 2 It is a flowchart of a communication method based on the AUTBUS bus provided by Embodiment 2 of the present invention. The method is executed by the target TN. This embodiment is applicable to performing identity verification on the CN and determining the legitimacy of the CN when communicating based on the AUTBUS bus. In the case that the method can be executed by a communication device based on the AUTBUS bus, the device can be implemented by software and / or hardware, and the device can be integrated in an electronic device such as a TN device that communicates based on the AUTBUS bus, such as figure 2 As shown, the method specifically includes:

[0080] Step 210: Send a network access request to the CN based on the AUTBUS bus protocol to instruct the CN to obtain the TN certificate information in the network access request, and when verifying that the target TN public key in the TN certificate information is legal, send the CN certificate information to th...

Embodiment 3

[0089] image 3 It is a schematic structural diagram of an AUTBUS-based communication device provided by Embodiment 3 of the present invention. combine image 3 , the device includes: a target TN public key verification module 310 , a first random number sending module 320 and a fixed bandwidth resource allocation module 330 . in:

[0090] The target TN public key verification module 310 is used to obtain the TN certificate information in the network access request sent by the target terminal node TN based on the AUTBUS bus protocol, and verify whether the target TN public key in the TN certificate information is legal;

[0091] The first random number sending module 320 is configured to generate a first random number and send it to the target TN to instruct the target TN to use the TN private key to encrypt the first random number to obtain the first encryption result, and to feed back the first random number to the CN. encrypted result;

[0092] The fixed bandwidth resou...

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Abstract

The embodiment of the invention discloses a communication method, system and device based on an AUTBUS and a medium. The method is executed by a CN, and comprises the following steps: in a network access request sent by a target TN based on an AUTBUS bus protocol, obtaining TN certificate information, and verifying whether a target TN public key in the TN certificate information is legal; if yes, generating a first random number, sending the first random number to the target TN to indicate the target TN to encrypt the first random number by using the TN private key to obtain a first encryption result, and feeding back the first encryption result to the CN; and decrypting the first encryption result by using the target TN public key, verifying that the target TN is a legal TN when determining that the decryption result is matched with the first random number, and allocating fixed bandwidth resources on the AUTBUS to the target TN. According to the method, the equipment identity can be verified when the AUTBUS equipment is accessed, so that the legality of the equipment is ensured, and the communication security is further ensured.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of industrial control and communication, and in particular to a communication method, system, device and medium based on an AUTBUS bus. Background technique [0002] The AUTBUS bus is a two-wire non-bridging medium with multi-node, high bandwidth, and time-sensitive industrial field bus. The AUTBUS bus is often used for the transmission and application of real-time data and non-real-time data in automation control industrial sites such as process control and discrete control, and is compatible with ISO / IEC / IEEE 8802-3 Ethernet, IPv6 and other applications. The AUTBUS bus has the characteristics of high bandwidth, high real-time, long-distance, and high reliability transmission. It is simple in wiring and installation, and it is convenient for network maintenance and supports the utilization of existing cable assets. AUTBUS uses a bus network to provide fixed-bandwidth data services and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L9/32H04L12/40
CPCH04L9/0869H04L9/3263H04L12/40H04L2012/4026
Inventor 于阳和光雄许亮
Owner 北京神经元网络技术有限公司
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