Abstract:

Controlling host security login system using smart phones is a new generation signon technology that combines intelligent terminal and password mechanism. Firstly, the relationship between Winlogon and GINA and the basic Windows system interactive logon principle are introduced. Secondly, the paper propose a system that a smart phone（based on Android platform）is used as an authentication factor carrier to control the host logon system under the windows platform. And the system's critical technique and advantages are described. The system uses the powerful functions of the application interface and the bluetooth communication of smart phones to realize the twofactor authentication mechanism with both the phone and PIN, largely improving the safety of the system as well as avoiding extra investment and inconvenience of carrying the phone.

Key words: two-factor authentication;Winlogon;GINA;Bluetooth communication;smart phones