Departement Elektrotechnik Professur für Technische Informatik Professor Dr. Albert Kündig Alain Pellmont Andreas Petralia Bluetooth Networking for Smartcards Diploma Thesis WS-2001.05 Winter 2000=2001 Supervisors: Prof. Dr. Albert Kundig¨ Dr. George Fankhauser Bernard Stauffer Public Release Institut für Technische Informatik und Kommunikationsnetze Computer Engineering and Networks Laboratory ii Supervisors: Prof. Dr. Albert Kundig,¨
[email protected] Dr. George Fankhauser,
[email protected] Bernard Stauffer, stauff
[email protected] Students: Alain Pellmont,
[email protected] Andreas Petralia,
[email protected] Acknowledgments Our special appreciation goes to our supervisors Prof. Dr. Albert Kundig,¨ Bernard Stauffer and Dr. George Fankhauser for entrusting us with this project. Prof. Dr. Albert Kundig¨ and Bernard Stauffer work for the Com- puter Engineering and Networks Laboratory [49] at the Swiss Federal Insti- tute of Technology Zurich [48]. Dr. George Fankhauser works for acter ag [3] where the authors were enabled to work in a stimulating atmosphere and wonderful environment. Furthermore, we thank acter ag [3] and their staff for their support, AXIS [11] for the Bluetooth stack and Lesley Brack, Emmanuelle Graf, Kathy Grolimund and Ian Maloney for their proof-reading and comments. Remaining mistakes are ours. Zurich, 17th March 2001 Alain Pellmont Andreas Petralia iii iv Aufgabenstellung Bluetooth Networking for Smartcards Alain Pellmont und Andreas Petralia Diplomarbeit TIK-DA-2001.05 Winter 2000/2001 Betreuer: Bernard Stauffer Betreuer (extern): George Fankhauser Verantwortlich: Prof. Dr. Albert Kundig¨ Einfuhrung¨ Die Firma acter ag entwickelt eine neuartige Smartcard, die im Gegensatz zur traditionellen Kontaktschnittstelle via Bluetooth drahtlos kommuniziert. Bei dieser neuen Form der Kommunikation ergeben sich v¨ollig neue Proble- me: die Ubertragung¨ ist weder zuverl¨assig noch sicher.