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State-based industrial safety encryption gateway and realization method thereof

A technology of industrial security and encryption gateway, applied in the field of state-based industrial security encryption gateway, which can solve problems such as data security transmission

Inactive Publication Date: 2016-12-21
SEATECH TIANYU TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a state-based industrial security encryption gateway and its implementation method to solve the problem of secure data transmission in industrial information systems

Method used

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  • State-based industrial safety encryption gateway and realization method thereof
  • State-based industrial safety encryption gateway and realization method thereof
  • State-based industrial safety encryption gateway and realization method thereof

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] see Figure 1~3 , in an embodiment of the present invention, a state-based industrial security encryption gateway includes a state packet filtering module, a VPN tunnel module, and an industrial control protocol engine module.

[0037] The state packet filter module is used to filter the industrial control data packets and establish and maintain the industrial control state table information, the state table information includes forward and reverse conn...

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Abstract

The invention provides a state-based industrial safety encryption gateway and a realization method thereof. The method comprises the steps that: an industrial control gateway receives a data packet from an industrial control client; the industrial control gateway inquires a state table and tunnel information in a core according to data packet quintet, the data packet data packet is subjected to encryption sealing and sent according to the state information and the tunnel information if the search is successful, and the industrial control gateway transmits the data packet to an application layer industrial control protocol engine module to carry out protocol analysis if the search is failed; the industrial control protocol engine module analyzes the data packet, connection information is issued to the core and a state table and tunnel are created in the core if the analysis is successful, and the a core control instruction is issued to stop the connection if the analysis is failed. According to the state-based industrial safety encryption gateway and the realization method, the three modes of state-based data packet filtering, a VPN tunnel based on an industrial control protocol and an industrial control protocol engine are combined to guarantee the safe transmission of data, and the safety transmission problem of the industrial control protocol data in the industrial information network is solved.

Description

technical field [0001] The invention relates to the technical field of industrial information security, in particular to a state-based industrial security encryption gateway and an implementation method thereof. Background technique [0002] With the popularization of information technology and network technology in industrial systems, the security of industrial information systems is a direct threat to current industrial information systems. The industrial control firewalls currently on the market only implement simple filtering of industrial control protocols. There are many types of protocols and great differences in protocols, so general industrial control firewalls perform protocol filtering at the application layer, which brings problems of low performance and unguaranteed security. Data packets are easily tampered with, which has a great impact on the security of industrial information systems. big threat. [0003] The need for industrial information security is immi...

Claims

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Application Information

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IPC IPC(8): H04L12/66H04L29/06
CPCH04L12/66H04L63/0227H04L63/0272H04L63/0428H04L69/12H04L69/22
Inventor 晏培
Owner SEATECH TIANYU TECH BEIJING
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