Research On ATC Information Security Of Civil Aviation

The ATC whole system information management is the core information service of the civil aviation in the future, its running idea is to realize ATC information collection, integration and distributed operation by establishing the information exchange and service modes with network as the center, but the ATC system contains a lot of sensitive information, therefore, ensure the safety of information storage and efficiency of exchange in ATC system has great significance.Based on the summary and research on the related references at home and abroad, the main three sorts of work has been done.First, we make detailed analysis of the DDS architecture and use DDS architecture for ATC information transmission, 3DES algorithm is applied to the encryption process of sensitive information, we also implement the ATC sensitive information transmission scheme based on DDS and 3DES algorithm.Second,in view of the ATC numeric data in the database, we use the method of bucket partition to establish cipher-text index. And then we put forward a method of composite cipher-text index based on multiple barrels partition, improving query security.In order to more efficiently complete the numeric data query inside the bucket, we take B+ tree as the index structure of the barrel, and analyzed the performance and security.Thirdly, in view of the ATC character data in the database, we establish a cipher-text index, its basic idea is to map and adjust the character data which is in the database into index value, and convert the SQL statements to the form which can be applied to the index attribute column, this method can improve the retrieval efficiency of ATC database systems to the encrypted character data content, and ensure the security of ATC database system. Based on this method, we complete the related experiments.