OpenSSO Enterprise allows a configured circle of trust to contain entities speaking different federation protocols thus supporting cross protocol single sign-on and logout among hosted identity providers in the same circle of trust. For example, you can create a circle of trust containing one identity provider instance that communicates with multiple federation protocol and three service provider instances that speak, respectively, Liberty ID-FF, SAML v2 and WS-Federation. Figure 10–2 illustrates the process of multi-federation protocol single sign-on and single logout.
For more information, see the Sun OpenSSO Enterprise 8.0 Administration Guide.