Method for controlling multi-stage access to avionic data by civil onboard network service system

Abstract

The invention provides a method for controlling multi-stage access to avionic data by a civil onboard network service system. The avionic system data can be prevented from being illegally accessed by application software from the onboard network service system, and therefore the safety of an avionic system is guaranteed. The method for controlling the multi-stage access comprises an application authorization process, an application operation request process and an avionic data authentication process, and the application authorization process and the avionic data authentication process are independent execution processes. The complete execution of the application operation request process comprises the two premises that 1), the application providing an operation application acquires access authorization, that is, the application passes through the application authorization process, and correct authorization proof can be provided in the operation application process; 2), operation data meet the authentication rules of the avionic data, and data authentication can succeed in the avionic data authentication process. The method has the advantages of being high in safety, strong in practicality and low in coupling performance.

Description

technical field [0001] The invention relates to a method for controlling access to avionics data by a civil airborne network service system, which is used for controlling the access security of applications in the airborne network service system to avionics data. Background technique [0002] In the field of aviation, the safety of avionics data provides a guarantee for the normal operation of the entire aircraft. In the traditional aircraft architecture, avionics data is transmitted in a closed airborne environment through a dedicated bus, and will not be threatened by external information security, thus ensuring the security of avionics data. [0003] With the extensive application of information technology in civil avionics systems, in order to provide more and more convenient functions to aircraft users (such as aircraft operators, pilots, maintenance personnel, etc.), the airborne network constructed by Ethernet network is introduced The service system forms an open en...

AI Technical Summary

Problems solved by technology

Since the existing airborne network service system does not provide data access control measures, when the application software residing in the airborne network service system not only exchanges data with the avionics system, but also communicates with the aircraft's external support systems (such as maintenance terminal , information center, etc.) for data interaction, it brings network information security threats to the avionics system inside the aircraft, which in turn affects its safety and creates unstable factors for aircraft operation

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