Single-sign-on access to networked resources via a portal server

摘要

A single-sign-on adapter (SSO Adapter) implementing one or more authentication mechanisms that may be used by Portal middleware on behalf of a portal user. A user seeking access to a resource server through a portal server performs a single sign-on with the portal server at the beginning of a session. When the user requests a resource from a resource server that requires authentication, the authentication is handled by the portal server without requiring an authentication response from the user. The portal server may use stored user credentials, a token-based shared authentication service, or proxy authentication in order to gain access to the resource server on behalf of the portal user. In some embodiments the resource server is an electronic mail/instant messaging/address book/calendar server.