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:
Jul. 14, 2026
Filed:
Sep. 01, 2023
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Renaud Sirdey, Gif-sur-Yvette, FR;
Aymen Boudguiga, Gif-sur-Yvette, FR;
Martin Zuber, Gif-sur-Yvette, FR;
Abstract
A method for controlling access of a user equipped with a terminal to a physical or logical resource, the method involving a secure cryptographic device forming a token corresponding to an access criterion, the access token being intended to generate a keystream masking a biometric reference of the user obtained by a biometric reader of the terminal. The biometric reference thus masked is encrypted by fully homomorphic encryption and stored in a database hosted by a remote server. An access control operator obtains a biometric characteristic of the user, homomorphically encrypts it and transmits it to the remote server. This server compares the first and second biometric models in the homomorphic domain and supplies the homomorphically-encrypted result of the comparison to the access control operator. The latter grants or denies access to the user according to the result of the comparison, after having decrypted it.