Application & Research Of EAI

With the constant development of the network technology and software engineering,informationization has already become a primary problem of all enterprises' development,and at the mean time,E-commerce requires enterprise can integrate various information system into one unified platform,and meets the demand of the information exchanges among enterprises. EAI(Enterprise Application Integration) can integrate existing system and newly-built system with various software and hardware technology,thus these systems can complete all kinds of business activity and can adapt to the development of enterprise and the change of market.To better support EAI,an expandable and distributed integration engine is needed. In this paper,the importance of message communication in EAI is discussed first,and the architecture and ways of communication of message system are analyzed. The core function collection of message system is designed referring to message-oriented middleware,XMCP message interoperation protocol is designed to support the communication between core message engine and local message engine. OpenEAI message proto-type system is constructed on the basis of JMX framework and a detailed description is provided for the design scheme.In this paper,from the viewpoint of the design of a safe architecture,the security problem of openEAI message system is studied,and SSL protocol and encryption strategy is studied in transmission layer and application layer. The embedment of the text proclaimed in writing in elliptical public-key encryption system is studied theoretically and a general algorithm is designed. On the consideration of the important function of XML in message communication,security plan and the standard of digital signature in different granularity is given.