Combination of PANA and Diameter in Trusted Vehicle Network

Vehicle network is popular gradually. For more security in vehicle network, a trusted AAA (Authentication, Authorization and Accounting) environment for vehicle network must be established. The paper proposes an approach to establish such an environment using combination of two next generation AAA protocols, PANA (Protocol for carrying Authentication for Network Access) and Diameter. The ability of their combination both in work patterns and in the protocol structure is analyzed, and an AAA network entity communication structure and the architecture of the key device to combine the protocols are put forward. Moreover, the implement method of the software base on Open Diameter on the key device is given in detail. This scheme is proved to be effective through experiment.