Verfahren zum Speichern Geschützter Daten in einem Gesicherten Chip in einer Unsicheren Umgebung

Details

Veröffentlichungs-Nr.

EP4482085

Aktenzeichen

EP23305986

Anmeldetag

21. Juni 2023

Veröffentlichung

17. Dezember 2025

Erteilung

17. Dezember 2025

Rechtsraum

EP

IPC

H04L9/40G06F21/73G06F21/77H04L9/08H04W12/30H04W12/48

Abstract

The method (200) for storing series of protected data in secure chips in an unsecure environment, characterized in that it comprises: - loading (205), by a first secure chip, a first series of protected data, - generating (220), by the first secure chip, a token to allow a second secure chip to load a second series of protected data, - internally storing (210), by the first secure chip, information related to that generation of token to forbid the generation of any other token for this second series of protected data by the first secure chip, - transmitting (225, 235) the generated token to the second secure chip together with the second series of protected data, - determining (240), by the second secure chip, that the token has been issued by the first secure chip, and - only if the second secure chip determines that the token has been issued by the first secure chip, storing (240), by the second secure chip, the second series of protected data.

Anmelder

Firma

IDEMIA France

Land

🇫🇷 Frankreich

Fachgebiete