Single sign-on transparent integration technology for Web systems with HTTP authentication protocols

To address the problem that existing legacy Web application systems using HTTP authentication protocols cannot be modified in implementing SSO technology,this paper proposed a transparent SSO integration technology which required no modifications to the existing legacy systems.The proposed technology employed a plug-in module which inserted into the HTTP request and response processing pipelines of a Web server.The plug-in automatically processed the reciprocal exchanges of authentication data with the Web server employing a HTTP authentication protocol.As a result,it achieved SSO without the changes or modifications to the Web server and application.Practical applications and tests demonstrate that the proposed technology has achieved the predined functionality and the expected effects.The technology is highly helpful to the implementations of SSO.