OPC protocol safety protection method for intelligently learning and presetting read-only whitelist rule

A technology of intelligent learning and protocol security, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as unsafe industrial sites and achieve the effect of learning process protection

Active Publication Date: 2018-11-20
北京威努特技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the learning process, some malicious operations will be learned, a

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  • OPC protocol safety protection method for intelligently learning and presetting read-only whitelist rule
  • OPC protocol safety protection method for intelligently learning and presetting read-only whitelist rule
  • OPC protocol safety protection method for intelligently learning and presetting read-only whitelist rule

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Embodiment Construction

[0035] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Such as figure 1 Shown, method of the present invention comprises the following steps:

[0036] Step 1, capturing network messages: capture all messages passing through the monitoring and protection equipment; the monitoring and protection equipment refers to equipment that adopts a general hardware platform, and the general hardware platform includes: using ARM, X86 / Atom, MIPS, PowerPC system The hardware platform of the structure; the monitoring protection device can capture data packets and control the data packets based on the security rules and white list rules deployed by the administrator; the white list or white list rules in the present invention refer to a data definition list, Carry out network message inspection based on the data definition list, the content of the message conforms to the passage of the data definition list, and those that d...

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Abstract

The invention discloses an OLE for process control (OPC) protocol safety protection method for intelligently learning and presetting a read-only whitelist rule. The method comprises the following steps: step one, a network messagecapture; step two, basic message analytic processing; step three, protocol deep analysis and processing; step four, service processing; step five, whitelist rule generation; step six, read-only whitelist rule setting; step seven, monitoring protection equipment operation in an alarm mode; step eight, changing of the monitoring protection equipment to an operation mode; step nine, transmission of the data of the OPC protocol; and step ten, receiving and learning the message record information uploaded by the monitoring protection equipment. The method disclosed bythe invention has the advantages that the OPC protocol based on the TCP protocol can be identified, and the OPC protocol based on the UDP protocol can be monitored, protected and transmitted; an industrial field only having the collection action directly uses the preset read-only rule and the complex learning process is saved.

Description

technical field [0001] The invention relates to an OPC protocol safety protection method for intelligent learning and preset read-only white list rules, and belongs to the technical field of automatic control. Background technique [0002] At present, the OPC protocol has become an international standard. The OPC protocol is based on Windows' COM (Component Object Model, Component Object Model) technology and DCOM (Distribute Component Object Model, Distributed Component Object Model) technology. It is the abbreviation of OLE for Process Control. The role of the OPC protocol is to provide a set of standard interfaces for automation software developers, that is, there is no need to care about how the server collects and writes data from devices of different hardware manufacturers, and only needs to make corresponding calls according to the interfaces provided by OPC , the system will automatically complete the actual collection and writing actions and get corresponding feedba...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/26
CPCH04L43/026H04L43/04H04L43/18H04L69/22
Inventor 冯全宝
Owner 北京威努特技术有限公司
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