Secure Federation

Models, standards and specifications (e.g. WS-Federation) that underpin trust establishment and secure federation of autonomous administrative domains.
Derived requirements include, common capabilities for:

Common federated identity issuing mechanism
Common cross organisational trust establishment capability that is independent of the partner-specific authentication / attribute management mechanism
Standard format & ontology for representing VO assertions / credentials
Common cipher material distribution mechanisms
Configurable (Web) service design patterns to support federation-related interactions.