The current access protocols of WLAN Mesh network and trusted network could not satisfy the requirements of performance and security when the trusted access is needed in WLAN Mesh networks.Then

a provably secure trusted access protocol MN-TAP for the WLAN Mesh networks was proposed.Such protocol will achieve authentication and key confirmation among the access requestor

policy enforcement point and policy decision point.At the same time

the protocol could realize the platform authentication and platform integrity verification in the first round of protocol interaction

which would improve the efficiency of the protocol and decrease the overhead of the servers.A provably secure model was used

named universally composable secure model

to analyze the security of the protocol.And the performance of the protocol was analyed.The results show that: the protocol is a UC-secure protocol

and the performance has great advantages over the current protocols.