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Software Security Analysis Method for Field Programmable Logic Devices in Aviation Equipment

A programming logic and security technology, applied in the security field, can solve the problems of difficult to find failures, unable to guarantee consistency and adequacy, easy to miss failure modes, etc., and achieve the effect of strong practicability

Active Publication Date: 2021-09-28
CHINA AERO POLYTECH ESTAB
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  • Abstract
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Problems solved by technology

Finally, there is no mature and recognized method for how to identify and analyze PLD software failure modes according to the PLD software requirements document. However, there are several shortcomings: when the number of functions or states of PLD software is large, it is easy to miss individual failure modes; PLD software with complex logic characteristics such as "multi-functional state combination, multi-input condition triggering" is not easy to find its potential failure; When analysts with different experience conduct failure mode analysis on the same analysis object, the consistency and adequacy cannot be guaranteed

Method used

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  • Software Security Analysis Method for Field Programmable Logic Devices in Aviation Equipment
  • Software Security Analysis Method for Field Programmable Logic Devices in Aviation Equipment
  • Software Security Analysis Method for Field Programmable Logic Devices in Aviation Equipment

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Embodiment Construction

[0093] Attached below Figure 1-3 And embodiment the application is described in further detail. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0094] 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. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0095] Take a certain type of flight parameter recorder recording PLD software (hereinafter referred to as the flight parameter recording PLD software) as an example. The flight parameter recording PLD software is the core component of the flight parameter recorder. The software receives the flight data o...

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Abstract

The present invention provides a software security analysis method for on-site programmable logic devices of aviation equipment. The method includes: aiming at an external cross-linking environment model, a function processing model and a working state migration model, forming a security analysis-oriented demand modeling method; Requirement model, from the perspective of external input interface, external output interface, function processing process and working status to form aviation equipment PLD software security analysis rules; on the basis of the demand model, according to the PLD software security analysis rules, determine the potential failure of PLD software in the requirements mode, and analyze the causes and effects of failure modes, formulate corresponding control measures, and determine the security requirements of PLD software. The present invention standardizes the safety analysis method of the aviation equipment PLD software by means of the security analysis-oriented aviation equipment PLD software requirement modeling and the aviation equipment PLD software security analysis technology based on the demand model, and improves the aviation equipment PLD software security and quality Level.

Description

technical field [0001] The invention belongs to the technical field of security, in particular to a software security analysis method for field programmable logic devices of aviation equipment. Background technique [0002] Programmable logic device (programmable logic device, PLD) is widely used in aviation equipment because of its unique advantages such as high logic density and flexible design. However, there are still many problems in the existing PLD software security analysis methods for aviation equipment. Including insufficient analysis, limited by itself, lack of objective norms, etc. [0003] First of all, although relevant research has been carried out on aviation equipment software security analysis methods at home and abroad, there are few studies on aviation equipment PLD software; and common software security analysis methods focus on the analysis of software failure modes such as functions and task scenarios. However, PLD software realizes different logic de...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05
CPCG05B19/056G05B2219/13004
Inventor 封二强初振华赵刚孙乾马力蔡玉华
Owner CHINA AERO POLYTECH ESTAB
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