Single Sign-On (SSO)

Unique, centralized authentication for a set of federated services.

• The identity of a client, upon authentication, is given to all federated services.

• The identity attributes given to each service may vary.

• The authenticator is called the Identity Provider (IdP).

Examples

• SSO authentication @ UA

  • Performed by a central IdP (idp.ua.pt).

  • The identity attributes are securely conveyed to the service accessed by the user.