Study And Implementation Of Security Data Management Technology In Integratd Avionics System

Instead of using a federated architecture, Integrated Modular Avionics (IMA) architectures have gained momentum in the military and aerospace avionics industries. At the same time, information should be distributed, interconnected and shared, what introduces new threats to security and safety. What's more, integrated data store in IMA system makes still stricter demands on data management.This paper studies the security data management technology of IMA system and analyses Allied Standard Avionics Architecture Council deeply. In order to avoid the issue of unauthorized disclosure and loss of secure data, the Access Control technology based on BLP modle is proposed; In order to guard against the analysis of residual secure data, the Data Erasure technology is proposed and a time-limited, efficient, hierarchical method is put forward and realised.Based on the project "Security Management Software for Integrated Avionics Core Processing System", Access Control Software and Data Erasure Software are realised and tested. From the test results, we draw the following conclusions:The Access Control Software and Data Erasure Software are practicable and feasible. The application of these two softwares prevents the disclosure and loss of secure data effectively.