Journal of Applied Sciences 1812-5654 1812-5662 Asian Network for Scientific Information 10.3923/jas.2005.215.219 Abdelhameed Rania Sabira Khatun Mohd Ali Borhanuddin Ramli Abdul Rahman 2 2005 5 2 Authentication is a mechanism help establish proof of identities, the authentication process ensure that who a particular user is. Current PC, laptop user authentication systems are always done once and hold until it explicitly revoked by the user, or asking the user to frequently reestablish his identity which encouraging him to disable authentication. In our model of authentication, a user uses his Bluetooth-enabled mobile phone, which work as an authentication token that provides the authentication for laptop over a short-range wireless link, in the concept of transient authentication. The user authenticate to the mobile phone infrequently. In turn, the mobile phone continuously authenticates to the laptop by means of the short-range, wireless link.

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