Method and device for isolating industrial control equipment from external network server
A technology of industrial control equipment and external network, applied in the direction of electrical components, transmission systems, etc., can solve the problems of unable to analyze the business content of industrial protocols, unable to detect unknown threats, easy to be forged and tampered with, etc., to ensure security and stability, Avoid attacks and achieve the effect of isolation
Inactive Publication Date: 2018-03-13
INSECTECH BEIJING CO LTD
View PDF6 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] 1. Most of the current firewalls are based on feature protection, which cannot analyze the business content of industrial protocols and cannot detect unknown threats
[0006] 2. Most industrial protocols are based on TCP protocol transmission. TCP is an open protocol transmission method. Compared with private protocols, it is easy to be forged and tampered with
[0007] 3. Firewall and other devices, if they are attacked, the data transmitted through the device will be hijacked by the attacker, and it is easy to parse the content
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0033] The invention may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules inc...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method and a device for isolating industrial control equipment from an external network server. The method comprises the steps of: setting an internal end machine, an isolation card and an external end machine between the industrial control equipment and the external network server; acquiring and storing state information of the industrial control equipment by the internal end machine; transmitting data between the internal end machine and the external end machine by the isolation card based on a preset protocol and a preset encryption algorithm; and receiving and storing the state information of the industrial control equipment uploaded by the internal end machine through the isolation card, so that the external network server acquires the state information. Themethod and the device have the advantages of avoiding direct communication between the external network server and the industrial control equipment to realize real isolation between the industrial control equipment and the network equipment, avoiding attacks that may be from external networks to the industrial control system, and ensuring the security and stability of the industrial control system.
Description
technical field [0001] The invention relates to the technical field of industrial control security, in particular to a method and device for isolating industrial control equipment and external network servers. Background technique [0002] In the industrial control scenario, the industrial control protocol is the main transmission protocol of the industrial control business, and most of them adopt the mode of plain text transmission, and the protocol itself lacks an effective security mechanism. Under this premise, industrial control protocols are easy to be monitored, tampered with, and forged. At the same time, in networks with different security levels, the protocol transmission process is more prone to insecure factors. For example, data transmission from an untrusted network to a trusted network requires security isolation and exchange of protocols to ensure safe data entry. Trusted network. [0003] If the industrial protocol in clear text is transmitted in an insecu...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H04L29/06
CPCH04L63/02H04L63/0428
Inventor 张超焦颖
Owner INSECTECH BEIJING CO LTD