Research and Implementation of Single Sign-on in Enterprise Systems Application Integration

Single Sign-on(SSO)is an effective unified authentication and authorization mechanism that makes users access to all integrated applications that trust each other from one single-sign-on site.This paper starts from the basic principle analysis of CAS,a single sign-on solution.In order to solve the problems of complex permissions assignment and inflexibility of mounting existent applications,an extended CAS SSO solution,named Ext-CAS SSO,is proposed in a procedure of enterprise systems integration.Furthermore,this paper states the full structure,working protocol and concrete implementation of Ext-CAS SSO in different scenarios.At last,a questionnaire survey regarding the related systems is conducted to testify the user experience.