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Erschienen in:
2008 | OriginalPaper | Buchkapitel
Digital Signature Transponder
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While the first RFID car immobilizer systems were based on read-only transponders, in 1995 followed the Digital Signature Transponder – the first RFID device containing a real encryption module and using the state-of-the-art challenge-response protocol.
After an introduction about the immobilizer operation and system properties the development of the Digital Signature Transponder is described, also discussing different trade-offs. Section 3 covers attack scenarios and the re-engineering work that led to a machine for exhaustive key search. Section 4 concludes with important lessons learnt and future development directions.