The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2025
Filed:
Sep. 27, 2021
Nxp B.v., Eindhoven, NL;
Nikita Veshchikov, Brussels, BE;
Christian Schwar, Graz, AT;
NXP B.V., Eindhoven, NL;
Abstract
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.