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SUMMARY:Dismantling Megamos Crypto: Wirelessly Lockpicking a Vehicle Immob
 ilizer - Flavio Garcia\, University of Birmingham
DTSTART:20151013T130000Z
DTEND:20151013T140000Z
UID:TALK60457@talks.cam.ac.uk
CONTACT:Laurent Simon
DESCRIPTION:*Abstract:*\nThe Megamos Crypto transponder is used in one of 
 the most widely\ndeployed electronic vehicle immobilizers. It is used amon
 g others in\nmost Audi\, Fiat\, Honda\, Volkswagen and Volvo cars. Such an
  immobilizer\nis an anti-theft device which prevents the engine of the veh
 icle from\nstarting when the corresponding transponder is not present. Thi
 s\ntransponder is a passive RFID tag which is embedded in the key of the\n
 vehicle.\n\nIn this paper we have reverse-engineered all proprietary secur
 ity\nmechanisms of the transponder\, including the cipher and the\nauthent
 ication protocol which we publish here in full detail. This\narticle revea
 ls several weaknesses in the design of the cipher\, the\nauthentication pr
 otocol and also in their implementation.\nWe exploit these weaknesses in t
 hree practical attacks that recover the\n$96$-bit transponder secret key. 
 These three attacks only require\nwireless communication with the system.\
 n\n*Bio:*\nFlavio Garcia is a Senior Lecturer and Senior Birmingham Fellow
  at the\nUniversity of Birmingham. His work focuses on the design and eval
 uation\nof cryptographic primitives and protocols for embedded devices lik
 e\nautomotive key fobs and smart cards.\nHis research achievements include
  breakthroughs such as the discovery of\nvulnerabilities in four of the mo
 st widely used contactless smart cards\,\nthe Mifare Classic\, HID iClass\
 , and Atmel’s SecureMemory and CryptoRF.\nThe first of these\, Mifare Cl
 assic\, was widely used for electronic\npayment (e.g. Oyster Card) and acc
 ess control (e.g. Amsterdam Airport).\nGarcia’s work has been widely rec
 ognized as world leading including an\n“Outstanding Paper Award” from 
 IEEE Security & Privacy (Oakland).
LOCATION:LT2\, Computer Laboratory\, William Gates Building
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