Airborne network safety risk assessment method based on improved AHP-GCM

Abstract

The invention discloses an airborne network safety risk assessment method based on improved AHP (Analytic Hierarchy Process)-GCM. The airborne network safety risk assessment method based on improved AHP-GCM includes the following steps: 1) analyzing a novel airborne network architecture risk source; 2) determining an assessment index system for the risk source and the threat state of the risk source respectively; 3) assigning the value to an index weight and examining the consistency; 4) solving the index weight of each layer and performing normalization processing; 5) dividing the risk levels, that is, determining the grey class; 6) establishing a white function; 7) calculating the grey clustering coefficient and determining the belonged grey class; and 8) based on the above steps, performing secondary assessment on the threat state of the risk source. The airborne network safety risk assessment method based on improved AHP-GCM determines the risk source and the risk state, on the basis of analyzing the novel airborne network architecture, assesses the risk source, on the basis of the analytic hierarchy process and the grey clustering method, performs secondary assessment on the threat state of the risk source, and integrates two times of assessment to optimize the risk assessment result to prevent bias and inaccuracy of single time of assessment result.

Description

technical field [0001] The invention is applied to the field of new airborne network security risk assessment, and in particular relates to an airborne network security risk assessment method based on the improved AHP-GCM. Background technique [0002] Flight safety is an eternal theme in the aviation industry. With the widespread implementation of onboard Wi-Fi plus modification and the important application of portable airborne equipment such as electronic flight bag (Electronic Flight Bag System-EFB) in aviation, the risk of hacker access attacks Higher and higher; the new aircraft adopts an advanced integrated modular avionics system network architecture, which breaks the physical isolation between the traditional flight control network domain, airline information service domain, and in-flight entertainment domain, and even increases Internet access related functions of the in-flight passenger entertainment domain. [0003] Traditional approaches do not fully counteract...

AI Technical Summary

Problems solved by technology

[0008] Both methods are commonly used network risk assessment methods, and combined use can overcome the shortcomings of the separation of qualitative analysis and quantitative assessment. However, the AHP relies on the experience of technical engineers and is highly subjective; and it may not be possible to evaluate only risk points. Thoroughly analyze the risk profile of your network

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