RFID tag authentication system
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United States of America Patent
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Dec 12, 2017
Issued Date -
N/A
app pub date -
Dec 30, 2015
filing date -
Jul 2, 2013
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Abstract
An RFID tag using a physically unclonable function (PUF) generates a response value corresponding to a challenge value, receives an RFID reader ID from an RFID reader, generates a first message authentication code for the RFID reader ID, an RFID tag ID and time information by using, as a secret key, a first response value corresponding to a first challenge value, and transmits, to the RFID reader, the first challenge value, the first message authentication code and the time information of the RFID tag, which are tag identification elements, when the RFID reader ID is received. At this time, the RFID tag shares, with an RFID tag authentication server, the same message authentication code generation function, the RFID tag ID, the first challenge value, and the first response value generated by a PUF module.
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