Provable Secure Mobile User Authentication with Anonymity for the Global Mobility Network

Seamless roaming in the global mobility network (GLOMONET) is highly desirable for mobile users, although the proper authentication is challenging. This is because not only are wireless networks susceptible to be attacked, but also mobile terminals have limited computational power. Recently, some authentication schemes with anonymity for the GLOMONET have been proposed. The main contribution of this article is an improvement on the schemes before, it proposes a user authentication scheme based on smart cards, requires between user and two agents are four exchanges of information, and security analysis has proved that the scheme can resist various attacks. Compared with the schemes before, this scheme is simpler and has lower computation.