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Passive power industrial control equipment fingerprint identification method and system

A technology for industrial control equipment and fingerprint recognition, which is applied in the protection of internal/peripheral computer components, complex mathematical operations, platform integrity maintenance, etc., and can solve problems such as equipment interruptions and affecting normal operation of equipment

Pending Publication Date: 2021-04-27
CHINA ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a fingerprint identification method and system for passive electric industrial control equipment, so as to solve the technical problem that the equipment is constantly disturbed during the detection process of the prior art and may affect the normal operation of the equipment.

Method used

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  • Passive power industrial control equipment fingerprint identification method and system
  • Passive power industrial control equipment fingerprint identification method and system
  • Passive power industrial control equipment fingerprint identification method and system

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Embodiment 1

[0062]The following combinationfigure 1 The principles and features of the present invention are described only for explaining the invention and is not intended to limit the scope of the invention.

[0063]The present invention proposes an effective method of identifying the fingerprint of the power industrial control device, which can accurately and uniquely identify the power industrial control equipment. In the fingerprint extraction phase, the trapezoidal map of the power industrial control device is analyzed and the control logic of the power industrial control device is extracted. The logic circuit of the power control device is converted to the status space of the device register using the Boolean logic matrix operation, and finally generates sequence status as device fingerprint. The device identification phase is characterized by listening to the device protocol communication traffic, the real-time register value of the device, and identifies the power industrial control devic...

Embodiment 2

[0094]The present invention provides a passive power industrial control device fingerprint recognition system, including:

[0095]The extraction module is used to extract the control logic of the power industrial control device from the firmware of the power industrial control equipment, and extract the ladder chart control program of the power industrial control device from the control logic.

[0096]The conversion module is configured to convert the logic circuit of the power industrial control device into a Boolean logic matrix using a ladder chart control program and operate the implementation of the power control device controller to obtain the register of the calculated calculation result.

[0097]After the fingerprint generation module, after the Boolean logic matrix of the power tool control device, generates a fingerprint of the register DFA sequence presentation of the power industrial control device, where the node in the DFA is the register state sequence, and is the execution or...

Embodiment 3

[0101]The present invention also provides a passive power industrial control device fingerprint recognition system, which is applied to a power system, the system including: a processor and a memory coupled to the processor, the memory stores a computer program, the computer program The method steps of the method according to the first embodiment are implemented when the processor is executed.

[0102]Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can be in the form of a fully hardware embodiment, a full software embodiment, or a combination of software and hardware aspects. Moreover, the present invention can be in the form of a computer program product implemented in one or more computers that include a computer available program code (including, but not limited to, disk memory, CD-ROM, optical memory, etc.).

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Abstract

The invention discloses a passive electric power industrial control equipment fingerprint identification method and system. The method comprises the following steps: extracting a ladder diagram control program of electric power industrial control equipment; converting a logic circuit of the electric power industrial control equipment into a Boolean logic matrix by utilizing a ladder diagram control program; generating a register DFA sequence according to the Boolean logic matrix; and comparing the characteristic value in the DFA sequence of the register of the electric power industrial control equipment with the state characteristic value of the register of the electric power industrial control equipment obtained from the flow of the communication protocol data packet to finish the identification of the electric power industrial control equipment. The method and system can be widely deployed in monitoring systems of power transformation automation and the like, regular detection and identification are carried out on south automatic power transformation equipment terminals adopted in the systems, and illegal equipment in a network is discovered. Comprehensive popularization and application can be carried out in the later period, more equipment fingerprints are added, and a wider application prospect is achieved.

Description

Technical field[0001]The present invention belongs to the technical field of power industrial control equipment, and in particular, the present invention relates to a passive power industrial control device fingerprint recognition method and system.Background technique[0002]Detection and identification of equipment are basic means of collecting equipment information collection and security detection. Provide the equipment security status analysis by discovering equipment type, vendor, model, operating system, service type, firmware version, etc. The device is different in soft and hardware functions and implementation, and the device fingerprint model can be established according to these differences to extract the fingerprint, and the device recognition is performed by the characteristic information compared with the device response packet. Research on device identification technology is starting from operating system identification, gradually expanding to device type identificatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/55G06F21/73G06F17/16
CPCG06F21/55G06F21/73G06F17/16Y02P90/02
Inventor 朱朝阳孙玉砚朱亚运周亮唐志军缪思薇张晓娟陈锦山何金栋
Owner CHINA ELECTRIC POWER RES INST
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