Joint Physical–Application Layer Security

Abstract

With the internet development and further development of information technique applications, information management system is used more and more widely in logistics enterprises, but consequent security issues of network information have become increasingly prominent. The paper was set in information system of logistics management of some company; security problem of application system in logistics enterprise under network environment was studied, and security architecture of logistics management information system and specific design program were introduced. Keywords-logistics; management information system; security; policy I. IMPORTANCE OF INFORMATION SYSTEM SECURITY ON LOGISTICS Logistics management information system is a man-machine interactive system which is composed of staff, hardware and software of computer, network communication equipment and other office equipment, and its main function is to make collection, storage, transmission, processing and sorting, maintenance and output of logistics information to provide supports of strategic, tactical and operational decision-making for logistics managers and other organizations managers. Currently, more and more logistics companies have established logistics information system of their own, and used Internet to develop business management and information services, so that operational efficiency of inner enterprises and customer service quality are not only improved, and reaction speed of market, decision-making efficiency and comprehensive competitiveness of enterprises are also improved. To logistics enterprises, security of networks and information systems data is premise and foundation for normal sustainable development of operating activities, therefore, various security technologies are fully used to establish a multi-channel strict safe defense-line, and it is very necessary to maximize security protection of management information system and all data of logistics. II. SECURITY SYSTEM HIERARCHY OF INFORMATION SYSTEM ON LOGISTICS MANAGEMENT A complete system of network security is divided into different levels and different levels reflect different security issues; according to system structure, security system of information system of logistics management can be divided into five levels, namely: security of physical layer, network layer security, security of system layer, application layer security, and manage security [1] and Figure 1 shows relationships among various levels. Figure 1. Security levels relationship of logistics management information system A. Physical layer security Physical layer security includes computer room safety, safety of a variety of physical devices, communication line security, etc. The physical layer is the basis for building information network and network transmission, and thus the security of physical layer is starting point of all security. But physical layer is the most overlooked of all constituent elements of network facilities; people tend to focus more on management and service of higher-level network structure,...