Single Sign-On: Is It Really Possible?

s the proliferation of applications accelerates, users find themselves losing the authentication war; every application that they are introduced to requires its own authentication or login. Some applications do this because they need to identify the user they are dealing with. Other applications do so because they simply do not trust anyone else to conduct authentication for them. The evolution of computing has introduced many ways to accomplish authentication, some stronger (in the security sense) than others. Single Sign-On (SSO) represents an attempt to address the “multiple login” issue, as well as other issues that are intrinsically tied to multiple logins.