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:
Aug. 19, 2025
Filed:
Feb. 07, 2023
Idemia France, Courbevoie, FR;
Emmanuelle Dottax, Courbevoie, FR;
Luk Bettale, Courbevoie, FR;
IDEMIA FRANCE, Courbevoie, FR;
Abstract
A post-quantum strong authentication scheme uses a reference PIN code stored in the memory of a personal object. A server generates a secret ss and a corresponding cipher ct using a key encapsulation mechanism, KEM, and a public key pk of the user, and then generates a cryptographic key ss' with a one-way function, OWF, applied to the secret. An access terminalreceives ss' and ct, and then obtains a PIN entered by the user, encrypts the PIN with ss', and finally transmits the encrypted PIN cPIN and ct to the personal object. The personal object obtains ss through KEM decapsulation of ct and, with its private key sk, generates ss' with OWF, and uses it to decrypt cPIN. Verification thereof validates a first authentication factor. The personal object generates and then sends a confirmation Know(ss) of the secret to the server, validating a second authentication factor.