A novel three-factor authentication and key agreement scheme providing anonymity in global mobility networks

As an important service, global roaming is widely used in global mobility networks to make the stable connectivity when the user goes through between different networks. To keep the security of communication, mutual authentication among the foreign agent, the home agent, and the user is a necessary part before normal data flow of the communication. Besides that, the need that the user's personal information should be protected is also an urgent task in the intercourse. Until now, a host of two-factor authentication schemes has been presented, and many weaknesses are presented under security analysis. Here, we propose a new three-factor key agreement and authentication scheme to overcome the problems, which exist in the past schemes. The security of the scheme is proved with three ways. The first is the formal proof employing the random oracle model. The second is the formal verification with Proverif, and the last is the informal analysis. And the presented scheme has all common security properties and is practical for applications. Copyright (C) 2016 John Wiley & Sons, Ltd.