Transponder system for transmitting key-encrypted information and associated keys

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United States of America Patent

PATENT NO 9830481
SERIAL NO

11917041

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Abstract

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A transponder (1) comprises at least one memory (MEM1, MEM2) for storing encrypted information (E_k(EPC, PI)) that has been encrypted by use of a key (k) and for storing the key (k) associated with the encrypted information (E_k(EPC, PI)). The transponder (1) is adapted to send the key (k) slower response than the encrypted information (E_k(EPC, PI)) in response to queries of a reading device (2), which is preferably done by delaying the transmission of the key (k) or by limiting the response rate at which the key (k) is transmitted. In particular the invention is related to RFID systems.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NXP B.V.EINDHOVEN3360

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Maubach, Stefan Nijmegen, NL 2 13
Schrijen, Geert Jan Eindhoven, NL 36 559
Skoric, Boris Den Bosch, NL 39 334
Tombeur, Antoon Marie Henrie Lommel, BE 11 80
Tuyls, Pim Mol, BE 4 7

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