Implementation of Indirect Single Sign-On Approach to Integrate Web-Based Applications

Managing user credential is a critical point in organization that has application island environment such as Diponegoro University. By so doing, application users will be helped to keep only one login information for entering those applications. Not changing login function in each application is the boundary that has been set when managing credentials. For this reason, indirectly single-sign-on approach is used in this research. Meanwhile, applications will be integrated using presentation integration model in web based environment. Using CodeIgniter Framework, single-sign-on portal has been developed to handle single login to applications available in Diponegoro University. As the result of this research, we found that by using indirectly single-sign-on approach almost all session variables from secondary domain application can work well under primary domain application except the secondary application that uses a dynamic variable session key. This circumstance will impact a logging out process when user signs out from primary domain application.