Abstract: The authentication protocol of Wireless Mesh Networks does not support 802.1X-based mutual authentication. Based on Diffie-Hellman(DH) exchange and making use of the combination characteristic of the Universally Composable(UC) security model and trust transfer, a new authentication protocol is proposed. Piggybacking opposite direction authentication messages in response, this protocol not only provides two-way authentication for Wireless Mesh Networks but also affords provably UC-security. Furthermore,compared with the original scheme, the communication cost decresses by 60％.

Key words: mesh networks, UC-security, authentication protocol, provable security