| With the development of modern information technology,the informationization is an urgent task.The informationization can accelerate the development of enterprises.They establish the numerous application information system in order to realize the application of modern management methods and information technology.They also expand the range of commercial partner and reduce the cost of transaction through their own E-business system.But most of these systems adopt independent resolvent,they are isolated islands of information.The users have to shuttle back and forth between each system in order to obtain more information which is time-consuming.Regarding the enterprise informationization and E-business, application system of enterprise integration is unavoidable.Now the international enterprise informationization application emphasizes the integration and the seamless integration and the coordination of the enterprises' interior and exterior resources.Through the establishment of the unified platform,it can eliminate faults of "the information isolated island",relate effectively each kind of enterprise functional module,maximum limit displays its potency.As a technology of enterprise integration of application,Web Services make enterprise entities choose the platform and development application system voluntarily.These systems may realize the seamless connection as long as they follow the interface of Web Service that has already stipulated.Each enterprise entity starts to use the technology of Web Service to transformation the internal information system.The aim is to realize the connection among the enterprises.Unfortunately,the enterprises have to face some barriers.Each application system has its own users system and the authentication method. The users possibly have many account numbers of various systems.They will have to input account number and password again and again when they log in these systems.It is very troublesome.And sometimes,the users are likely to reduce the intensity of password in order to remember the numbers.So,it is possible to reveal information of users.So,we need to have an unified,high security and efficiency identification service in the distributed environment.This service can guarantee the security of the enterprise application integration system.In order to solve the problem of user authentication which we meet in application integration,I design and implement a unified identification service based on the Web Services technology.In this article,I explain how to design and implement the unification status authentication service,and I also introduce the corresponding technology.I discuss Web Service's central technology:XML,SOAP,WSDL,UDDI.I also analyze the architecture and the work flow of Web Service.I discuss Web Service's central technology:XML,SOAP,WSDL,UDDI,I also analyze the architecture and the work flow of Web Service.The importance of this study is the security problem of Web Services,and I advance a solution plan of my own about the security problem of Web Services.I discuss the way of design and implement of the service based on secure Web Service under the platform of.NET,including the supplier how to define and development this service and the client how to find and use this service.We can use this service to validate the identity of the users when we implement the application integration based on Web Services.The service is loosely-coupled, language-neutral,platform-independent and open,it's very useful when we implement the application integration.The old systems can get rid of their own identification system and the new systems need not design their own identification system.What they need is just the unified identification service to validate the identity of the users.The solution of security about unified identification service also play a significant role.It refuse to be invoked by others outside the application integration systems. |
