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Efficient OPC UA client and server data transmission encryption method

A server-side, data transmission technology, applied in digital transmission systems, encryption devices with shift registers/memory, transmission systems, etc., can solve the problems of slow and unrealistic RSA encryption and decryption

Inactive Publication Date: 2019-03-08
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the above comparison, we know that due to the slow encryption and decryption speed of RSA, it is not suitable for the encryption of a large number of data files. Therefore, it is unnecessary and unrealistic to completely use the public encryption system to transmit confidential information in the network.

Method used

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  • Efficient OPC UA client and server data transmission encryption method
  • Efficient OPC UA client and server data transmission encryption method
  • Efficient OPC UA client and server data transmission encryption method

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.

[0034] The technical scheme that the present invention solves the problems of the technologies described above is:

[0035] An efficient OPC UA client-side and server-side data transmission encryption method, which uses RSA and AES encryption and decryption technologies interactively on the basis of establishing communication between the OPC UA server side and the OPC UA client side, to improve the OPC UA server The real-time performance, rapidity and security of data transmission encryption and decryption between the terminal and the OPC UA client. . The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0036]figure 1 T...

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Abstract

The invention discloses an efficient OPC UA client and server data transmission encryption method and relates to industrial data communication and information security. The method is mainly applied tosecure key information exchanging and data transmission between an OPC UA client and an OPC UA server. The characteristic that AES encryption speed is fast is utilized and secure management is carried out on an AES key through utilization of RSA in a network transmission process, so the whole key exchanging and data transmission timeliness and security between the OPC UA client and the OPC UA server are balanced. For industrial data communication, information security is very important.

Description

technical field [0001] The invention belongs to the field of industrial data communication, belongs to the aspect of information security, and in particular relates to an efficient OPC UA client-side and server-side data transmission encryption method. Background technique [0002] As an advanced industrial information exchange specification, OPC UA has been recognized by most automation equipment manufacturers in the industry and is bound to become the mainstream industrial information exchange system. However, OPC UA technology is not fully mature now, and it is difficult to achieve a good situation in the encryption and decryption of secret keys and the security of data transmission. Based on the current research on OPC UA security at home and abroad, and the OPC UA specification only defines The security mechanism supported by OPC UA has not been defined in detail for the specific operating environment. The security policy that should be implemented is a pair of contradi...

Claims

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Application Information

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IPC IPC(8): H04L9/06H04L9/08H04L9/30H04L29/06
CPCH04L9/0631H04L9/0825H04L9/302H04L63/0435H04L63/062
Inventor 罗志勇邓庆煌马国喜赵杰韩冷郑焕平蔡婷杨美美
Owner CHONGQING UNIV OF POSTS & TELECOMM
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