Patent ID: 8132007

Claim:
An authentication system for a Protocol for carrying Authentication for Network Access (PANA), the system comprising: a PANA client (PaC) comprising a hardware processor configured to establish a first PANA session with a PANA authentication agent (PAA), establish a second PANA session with the PAA, independent of the first PANA session, and transmit to the PAA, a PANA update request packet requesting a binding of the first PANA session and the second PANA session; and wherein the PAA comprising a hardware processor configured to determine whether the first PANA session and the second PANA session are associated with the PaC in response to the received PANA update request packet, wherein the PaC is further configured to generate a message authentication code (MAC) included in the PANA update request packet by combining a session key of the first PANA session and a second key of the second PANA session to generate a combined key and hashing a payload of the PANA update request with the combined key.