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. 18, 2017
Filed:
Mar. 25, 2015
Applicant:
Stmicroelectronics (Rousset) Sas, Rousset, FR;
Inventor:
Yannick Teglia, Belcodene, FR;
Assignee:
STMICROELECTRONICS (ROUSSET) SAS, Rousset, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/57 (2013.01); G06F 12/14 (2006.01); G06F 21/55 (2013.01); G01K 13/00 (2006.01); G06F 21/71 (2013.01);
U.S. Cl.
CPC ...
G06F 21/575 (2013.01); G01K 13/00 (2013.01); G06F 12/1458 (2013.01); G06F 21/554 (2013.01); G06F 21/71 (2013.01); G06F 2212/1052 (2013.01); G06F 2221/034 (2013.01); G06F 2221/2137 (2013.01);
Abstract
A method of detecting a cold-boot attack on an integrated circuit including the steps of: transferring, into a first volatile memory of the integrated circuit, a pattern stored in a non-volatile memory of the circuit; periodically causing a switching down and a switching up of the first volatile memory; and verifying that the number of bits having switched state is within a range of values.