Mobility and Security in IP Network

In mobile networks, mechanisms of security and Quality of Service (QoS) used in the fixed networks are not adapted. The mobility of the users makes problems of authentication and conservation of QoS during handoffs. In this study, we focus on the management of security and QoS for user's mobility. We propose an architecture authentication, which use a network management protocol (Common Open Policy Services) standardized by the Internet Engineering Task Force and Extensible Authentication Protocol on a smart card to perform authentication over the wireless network