The Design And Security Mechanism Research Of A Phonebook Synchronization Method Forbluetooth Handfree Car Kit

Bluetooth HandFree car kit is the latest communication product in telematic industry. Since more and more car manufactory realize personal communication accessory can add tremendous value to cars, the development of Bluetooth HandFree car kit related technology has been highly promoted. Customers require HandFres car kit to combine multiple functions. The ability to synchronize phonebook from cell phone to car kit is the most urgent demand presently.The thesis mainly focuses on a Bluetooth technology based phonebook synchronization method which can seamless fit in the present HandFree car kit. In this method, we put much emphasis on the seamless combination of the Handfree application and synchronization. as well as the intelligent interaction between car kit and cell phones. Since the present BlueTooth security mechanism which works on the link level is not enough to meet the system security demands, a whole set of security mechanism to cover the application needs is put forward.The Symbian Series 60 cell phone is selected to be the client device in this research. In the first part of this thesis, three initial frameworks are proposed respectively based on a study in HFP, OPP and SyncML. They are also tested with Nokia 6681 to verify the profile compatibility. OPP is finally chosen according to the test results. The second part is an overall analysis in system security, including both the demands and threats. Further more, a system security mechanism is designed to meet the needs. This mechanism perform authorization for service-level security and authentication for link-level security as well. After that, the thesis explains how to implement the client software on a Symbian platform. In this part, three key techniques are illustrated in more detail, including automatic connection, database management and upload interruption upon high priority event, like calls. In the last part, a system test is preformed to within an integrated environment. The test results show a good performance in system intelligence and security.