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. 23, 2024
Filed:
Mar. 29, 2022
Applicants:
Stmicroelectronics (Alps) Sas, Grenoble, FR;
Stmicroelectronics (Grand Ouest) Sas, Le Mans, FR;
Inventors:
Franck Albesa, Parigne l'eveque, FR;
Nicolas Anquet, Grenoble, FR;
Assignees:
STMicroelectronics (Alps) SAS, Grenoble, FR;
STMicroelectronics (Grand Ouest) SAS, Le Mans, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/32 (2013.01); G06F 9/4401 (2018.01); G06F 21/72 (2013.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
G06F 21/72 (2013.01); G06F 9/4401 (2013.01); H04L 9/0861 (2013.01);
Abstract
The present disclosure relates to a method for decrypting encrypted data. The method includes generating a first count value by a monotonic counter of a processing device, deriving, using a key derivation circuit, a first encryption key based on the first count value, transmitting the first encryption key to a cryptographic processor; and decrypting, based on the first encryption key, first encrypted data.