Design And Implementation Of Single Sign-On System

At present, China's leading medium-sized enterprises information systems get into the mature stage of development, enterprise information system attributable to the integration of an important stage of unification. Unified portal, unified management, unified development model is the integration of the key projects, which are key projects are the cornerstone of single sign-on system.The adoption of uniform certification system means that all users log application systems, will be transferred to sign uniform certification system, and then returned to the state of user information, or wrong information, the application processing and packaging keeping to the client. The mandate, a unified access to the system, decentralized manner, the application system restart, application systems to request authorization system of authorized access to this information, the cache after the return of authorized information to authorized users optimize the processing speed. The gateway to support production of Web Control, the developers can directly drag, visual configuration. For application support use Microsoft Http Module technology, a plug-in expansion, the simple integration into existing applications. The crash protection, the system combines database, will be critical information stored in database files, the system can be promptly resumed after the collapse of the original state. For safety, use the system timestamp, verification code, IP comparison, RSA encryption, BASE64 grade encryption system to ensure that users of information security.The system development tools for Microsoft Visual Studio 2005, server software selection IIS5.1 or IIS6.0, the database selected Microsoft SQL Server 2005 or Microsoft SQL Server 2000, the operating system for Windows XP, Windows Server 2000, Windows Server 2003 can be and Application of the current epidemic of mature technology ASP.NET, Web Service, XML, RSA. ASP.Net is built on Microsoft's next-generation Platform framework, using common language runtime (Common Language Runtime) in back-end servers to provide users with a strong enterprise-class Web services application programming framework. Web Service is to make the original isolation of information between the sites can communicate with each other, sharing a proposed interface, the system used to authorize the transfer of information. XML can be extensible markup language, HTML and the like, are in SGML, standard common language, in this system of profiles, user information are stored in XML format. RSA encryption algorithm is a non-symmetric encryption algorithm, in this system for user login and encryption and decryption portal system and application systems to interact.