Anonymous identity authentication scheme in wireless roaming communication

Secure authentication of user?s identity is an important issue for wireless roaming environment. Especially, anonymity of the mobile users should be guaranteed to protect the privacy and the location untracked. This paper proposes a user anonymous identity authentication based on the self-certified public key system which can achieve mutual anonymity in wireless roaming communication. At the same time, we provide the new scheme is secure in the UC (Universally composable) security model. It is showed that the proposed scheme not only can overcome the weaknesses of the previous related schemes, but also can improve the efficiency of roaming process.