The International Journal of Innovative Research in Computer and Communication Engineering
This mechanism allows users to sign on only once and have their identities automatically verified by each application or service they want to access afterwards. Most of application architectures required the user to memorized and utilize a different set of credentials (e.g. username/password or tokens) for each application. The Single Sign-On (SSO) is a new authentication mechanism that enables a legal user with a single credential to be authenticated by service providers in distributed computer networks.