Implementation on Distributed Network Services Using SSO for Secure Mechanism

Key Agreement and User Authentication is an prime issues for creating and maintaining a security in distributed network .Legal User may able to access services of different providers. Recently there are some user Authentication and key agreement schemes has been proposed for distributed computer network. SSO is a Authentication mechanism which provides , the legal user authenticated by multiple service providers in distributed computer network, with a Single Authentication information. Goal of this paper are focused on improving and to reveal security weakness in services using Single sign On (SSO) secure mechanism, In this paper we provide comparative review of existing work done on SSO. Next we discuss mechanisms in which SSO is carried out to provide well Security. Idea provided by Chang and Lee for SSO mechanism, the authorized user privacy and easiness of authentication is not that much secure, as it fail to meet the security needs.