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:
May. 27, 2014
Filed:
Apr. 18, 2008
Applicant:
Michel Bardouillet, Rousset, FR;
Inventor:
Michel Bardouillet, Rousset, FR;
Assignee:
STMicroelectronics S.A., Montrouge, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for recording at least one information block in a first volatile memory external to a circuit, a first digital signature being calculated based on information and data internal to the circuit and a second digital signature being calculated based on first signatures of a group of information blocks and on a digital quantity internal to the circuit and assigned to said group. A method for checking the content of an information block recorded by this recording method.