•1. How to identify the fast
re-authentication?
–For ERP, two new EAP codes (Initiate, Finish) are specified for re-authentication.
–For EAP-AKA, a special identity (fast re-authentication identity) is generated to support re-authentication. The identity is one-time identity. The new identity is delivered during re-authentication processing.
–O1:The identity is
one-time identity, which is delivered within EAP-AKA exchange each time. It brings one more round trip time.