Strong Authentication and Key Agreement Protocol in UMTS

3GPP (3rd Generation Partnership Project) proposed UMTS AKA (authentication and key agreement) protocol, authentication and key exchange protocol, for safety wireless communication in UMTS (Universal Mobile Telecommunications System), one of 3rd mobile communication technologies. UMTS AKA, however, has problems with network bandwidth consumption, storage space overhead, synchronization of SQN and so on. In this paper, we propose the ticket based T-AKA protocol that solves the problem of UMTS AKA. The proposed protocol can support privacy protection, mutual authentication and forward security.