A Flexible Authorization Mechanism for Public Wireless LAN Services Based on Automated Trust Negotiation

An EAP method, EAP-ATN, is proposed for controlling accesses to services provided to general public in open environments, such as public wireless LAN access services. Automated Trust Negotiation (ATN) is a framework where a service provider and a client collaboratively determine whether to trust each other by exchanging credentials. By performing ATN as an EAP method, flexible and secure usage of public wireless access is achieved, compared to the current deployment of such services. This paper sketches the implementation of a prototype access control system based on EAP-ATN, and gives the result of a preliminary performance test.