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PERCOM
2004
ACM

"Yoking-Proofs" for RFID Tags

9 years 11 months ago
"Yoking-Proofs" for RFID Tags
RFID (Radio-Frequency Identification) tags are small, inexpensive microchips capable of transmitting unique identifiers wirelessly over a short distance. Thanks to their utility in automating supply-chain logistics, RFID tags promise eventually to supplant the optical barcode as a means of identifying goods. We propose the concept of a yoking-proof, namely a proof that a pair of RFID tags has been scanned simultaneously. Our particular aim is to permit tags to generate a proof that is verifiable off-line by a trusted entity, even when readers are potentially untrusted. We suggest that such proofs are a useful tool for maintaining integrity in supply chains, particularly as RFID data will commonly flow across multiple, loosely affiliated organizations.
Ari Juels
Added 24 Dec 2009
Updated 24 Dec 2009
Type Conference
Year 2004
Where PERCOM
Authors Ari Juels
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