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Multi-protocol industrial communication safety gateway and communication method with gateway applied

An industrial communication and security gateway technology, applied in the multi-protocol industrial communication security gateway and the communication field where the gateway is applied, can solve the problems such as the inability to guarantee the communication security of the industrial control network, the inability to directly apply the industrial control network, and the weak security protection of the gateway, etc. Achieve the effect of preventing misoperation or man-made sabotage, ensuring safety, and high security strength

Inactive Publication Date: 2015-01-28
山东华汉电子有限公司
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AI Technical Summary

Problems solved by technology

[0002] The data exchange between general industrial control networks requires industrial communication gateways to convert. Since industrial control network data communication involves a variety of industrial communication protocols, industrial control gateways pay more attention to protocol data conversion. Most of the existing general gateways only target one protocol. Therefore, it cannot be directly applied to the industrial control network
Moreover, the security protection of the existing gateway is relatively weak, which cannot guarantee the communication security of the industrial control network

Method used

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  • Multi-protocol industrial communication safety gateway and communication method with gateway applied
  • Multi-protocol industrial communication safety gateway and communication method with gateway applied
  • Multi-protocol industrial communication safety gateway and communication method with gateway applied

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Embodiment Construction

[0035] A multi-protocol industrial communication security gateway, comprising:

[0036] The key management mechanism module is used to use the digital envelope technology of asymmetric algorithm key management to encrypt and decrypt the key management and acquisition process, and to encrypt and decrypt the application layer data; Gateway management data, industrial communication protocol data and remote backup data of gateway logs;

[0037]The VPN encryption and decryption module is used for VPN encryption and decryption of access data; access data refers to all data arriving at or passing through the gateway, including key encrypted data, so that important communication data can be double-encrypted to ensure communication data to the greatest extent The security; the VPN encryption and decryption method is one of IPSec, GRE, SSL, and L2TP.

[0038] The security domain security protection module is used to provide virus defense, intrusion prevention, application identificatio...

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Abstract

The invention relates to a multi-protocol industrial communication safety gateway and a communication method with the gateway applied. In the data communication process, a source gateway encrypts data through a secret key management mechanism module and a VPN encryption and decryption module and then sends the data to a target gateway. The target gateway decrypts the data through the VPN encryption and decryption module, and provides safe detection and control service for data communication through a safety domain safety protection module; if the data are safe, secret key decryption is carried out on application layer data, the types of the application layer data are judged, an application management safety module is used for management if the application layer data are application management data, and an application layer message detecting and filtering module is called for detecting and filtering messages if the application layer data are application layer messages. The mode of combination of the VPN encryption and decryption, the secret key encryption and decryption, and the application layer message detecting and filtering is adopted for communication safety assurance; the safety domain safety protection and the application safety management are adopted for gateway application safety assurance.

Description

technical field [0001] The invention relates to a security gateway product, in particular to a multi-protocol industrial communication security gateway and a communication method using the gateway. Background technique [0002] The data exchange between general industrial control networks requires industrial communication gateways to convert. Since industrial control network data communication involves a variety of industrial communication protocols, industrial control gateways pay more attention to protocol data conversion. Most of the existing general gateways only target one protocol. Therefore, it cannot be directly applied to the industrial control network. Moreover, the security protection of the existing gateway is relatively weak, which cannot guarantee the communication security of the industrial control network. Contents of the invention [0003] In order to solve the above problems, the present invention provides a communication security gateway that can suppor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/66H04L29/06H04L12/46
Inventor 周文奇李因东唐华丁英峰王德宣黄彩琳
Owner 山东华汉电子有限公司
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