Method and device for challenge-response authentication

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United States of America

PATENT NO 12212660
APP PUB NO 20230099296A1
SERIAL NO

17448903

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Abstract

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A method is provided for challenge-response authentication between a verifier and a prover. In the method, a challenge is received from the verifier, the challenge for verifying an identity of the prover. The challenge is computed using a first verifier key. The prover computes a response to the challenge using a first prover key. The prover also computes a delay time for delaying transmission of the response to the verifier using a second prover key and a delay computation function. The response is transmitted by the prover to the verifier at the computed delay time. The response is verifiable by the verifier using the first verifier key. An arrival time of the response is verifiable by the verifier using a second verifier key. In another embodiment, a device for providing a delayed response is provided.

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Patent Owner(s)

Patent OwnerAddress
NXP B V60 HIGH TECH PARK EINDHOVEN 5656 AG EINDHOVEN NORTH BRABANT PROVINCE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schwar, Christian Graz, AT 8 24
Veshchikov, Nikita Brussels, BE 41 74

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