Method for configuring a transponder, transponder and base station
AssigneeNXP B.V.
InventorsJuergen Nowottnick, Frank Graeber
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Abstract
In accordance with a first aspect of the present disclosure, a method for configuring a transponder is conceived, comprising: deriving a signature from a physical unclonable function; verifying said signature; initiating a key training sequence between a base station and the transponder in dependence on a result of verifying the signature. In accordance with other aspects of the present disclosure, a corresponding computer program, transponder and base station are provided.
Claims14
A method for configuring a transponder, comprising:
- deriving a signature from a physical unclonable function;
- verifying said signature and sending said signature to a base station;
- and
- verifying the received signature based on a matching of the received signature with a stored reference value, and upon successful verification of the signature by the base station, the base station initiating a key training sequence between the base station and the transponder, wherein the matching is successful when a number of mismatched bits are below a predefined threshold.
A transponder comprising:
- a signature derivation unit configured to derive a signature from a physical unclonable function;
- the transponder further comprising:
- a signature verification unit configured to verify said signature and generate an enable signal in dependence on a result of verifying the signature, wherein the transponder is configured to proceed to authenticate to a base station in response to the enable signal indicating a positive verification result;
- and
- a signature transmission unit configured to transmit the signature to said base station based on the enable signal and causing the base station to verify the signature based on a matching of the received signature with a stored reference value, wherein the matching is successful when a number of mismatched bits are below a predefined threshold.
A base station comprising a key training sequence initiation unit, said key training sequence initiation unit being configured to initiate a key training sequence between the base station and a transponder in dependence on a result of verifying a signature derived from a physical unclonable function, wherein the base station is configured to receive and verifying the signature from the transponder, wherein verifying the received signagure includes matching the received signature with a stored reference value and the matching is successful when a number of mismatched bits are below a predefined threshold.
Dependencies are inferred from the claim text.