航空运输信息系统的数据安全

航空运输信息管理的数据库安全问题，要同时满足最大限度共享和保密性的要求，必须由一整套安全策略来保证。为了解决这个问题，论述了在航空运输信息系统内建立数据库安全策略的问题。分析了航空运输信息中各类信息的内容和安全特性，介绍了数据库安全的基本概念，并阐述了建立数据库安全策略的步骤和方法。根据航空公司的实际需要，结合一个已实现的机场航空运输信息管理系统LKIMS，围绕授权机制的建立为中心，结合用户认证、数据库备份、事务日志等方法，充分运用了数据库管理系统（DBMS）自身的特点，提出了一套航空运输信息管理的数据库安全策略，并给出了这个安全策略在实践中的评价。

Database security in air transportation information system

Database security in management of civil aviation demands both secrecy and share, which must be guaranteed by a series of security strategies. In order to solve the problem, the paper discusses the method of establishing a set of database security strategies in air transportation information systems. The content and the basic conceptions for establishing a set of database security strategies were put forward. With the advantages of DBMS,the identification, backup, and transaction log based on an airport transportation information management system were implemented. The practical value of the set of database security strategies described in the paper is examined. 3 tabs, 2 refs.