Abstract:

Seamless roaming in wireless network is very needed for users, and roaming in risk everywhere. Counterfeit mobile user identity for server access, for example, or for mobile users access to the server for a variety of malicious attacks resulting in the process of seamless roaming security threatened, therefore the safety of the mobile user authentication is urgent and challenging. Recently, all kinds of key exchange protocol based on authentication, more and more get the attention of the experts and scholars in the administrative password file because the tamper-proof function and convenience needs some smart card scheme based on safety certification were successively put forward, including Daojing He Team in key exchange protocol based on authentication between the wireless network users registered with the server security efficient implementation of authentication and communication has made a great contribution. The main content of the article is put forward on the registered agent in different two user authentication scheme based on smart card. Need between two users and two agents for five times the exchange of information, and to plan to do the safety analysis proves that the scheme can resist various attacks, such as replay attacks, known key attack, inside attack, offline password guessing attacks, imitate attack, a malicious attack agent etc. Article implements in roaming users and registered in an external agent dialogue, practical stronger, round number is less, so the scheme is more simple, safe and efficient.

Key words: tamper-resistance, convenience, authentication scheme, foreign agent