Dynamic Integration Of Secure Web Services Model

Web Services architecture is a new technology for distributed computing over Internet. It plays an important role in dynamic e-business environment. This paper focuses on security issues of Web Services,and advances a secure proposal for dynamic intergration.This paper first tells about Web Services architecture,including the conception of Web Services,the features,and the implemation platforms. Then it analyzes the development foreground and the technical difficulties of Web Services according to the development actuality. It also introduces key technology of Web Services:XML,SOAP,WSDL and UDDI.The following chapter introduces security technology of Web Services in detail. Firstly,it explains PKI infrastructure and asymmetric encryption theory. Secondly,it introduces XML Encryption,XML Signature,WS-Security and WS-License specifications.The fourth chapter of this paper is concerning about the Secure Web Services model based on XDI. Traditional security specifications about Web Services are for two fixed roles,while our proposal is useful of dynamic intergration for multiple roles. We adopt role-based authorization and authentication in our system. The system architecture will be describled,and also the detail format of interactive messages. Finally,there is the provement of the system security.