Zufallsdaten aus GNSS-Signalen und Bereitstellung eines sicheren Zufallswerts für sichere Softwarekomponentenimplementierungen

Details

Veröffentlichungs-Nr.

EP2884689

Aktenzeichen

EP14192674

Anmeldetag

11. November 2014

Veröffentlichung

14. Oktober 2020

Erteilung

14. Oktober 2020

Rechtsraum

EP

IPC

H04L9/08H04L9/06G06F7/58

Abstract

A method for verifying the integrity of navigation data used to produce random values for a white-box cryptography system including: receiving information from a navigation system; verifying the integrity of the received navigation information; extracting random information from the received navigation information; and performing a white-box cryptography operation using the extracted random information. Also, a method for determining that the random information samples used to produce random values for a white-box cryptography system have sufficient entropy, including: determining a number of random samples to initially collect; collecting the number of random samples from an external random number generator; calculating the entropy of the collected random samples; encrypting or hashing the collected random samples using the white-box cryptography system and a secret key; and performing a white-box cryptography operation using the encrypted collected random samples.

Anmelder

Firma

NXP B.V.

Land

🇳🇱 Niederlande

Fachgebiete