Authentifizierung einer Geteilten Bibliothek mittels Verschlüsselungsfunktion

Details

Veröffentlichungs-Nr.

EP4650997

Aktenzeichen

EP24305741

Anmeldetag

13. Mai 2024

Veröffentlichung

19. November 2025

Rechtsraum

EP

IPC

G06F21/44H04L9/00

Abstract

The invention provides a method of authentication between a computer program comprising code instructions with a link to call for a function of a shared library and the shared library implemented in an entity. The method comprises applying (306), by the entity, an encryption function to a predetermined value set N, wherein the encryption function is homomorphic for at least a first operation, and applying (306; 307), by the entity, the first operation to at least one encrypted element of the encrypted value set and to at least one shared value to obtain an authentication key D. Upon reception of (308) the authentication key D, the compute performs (315-318) authentication of the shared library, by the computer, based on the authentication key D and a communication channel is established (319) between the computer program and the shared library to execute the function called by the link in the computer program, only if the authentication of the shared library is valid.

Anmelder

Firma

THALES DIS FRANCE SAS

Land

🇫🇷 Frankreich

Fachgebiete