Implementation of a User Account Provisioning System Based on NFC for Public Wi-Fi Services

For secure usage of public Wi-Fi services, mutual authentication between service providers and users is required. However, because the cost of the user account provisioning to achieve mutual authentication is high, the level of authentication is suppressed low in many services. In this research, we aim to reduce this cost. One of the problems in user account provisioning is that theft or swap of authentication information is performed as man-in-the-middle attack during message exchange process for authentication. In Near-Field Communication(NFC), it is hard for adversary to get between communicators. In this paper, to achieve a user account provisioning of public Wi-Fi services based on NFC, we propose a secure system for both service providers and users.