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:
Oct. 18, 2016
Filed:
Feb. 16, 2011
Applicants:
Charles Salmon-legagneur, Rennes, FR;
Antoine Monsifrot, Rennes, FR;
Inventors:
Charles Salmon-Legagneur, Rennes, FR;
Antoine Monsifrot, Rennes, FR;
Assignee:
Thomson Licensing, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/30 (2006.01); G06F 12/14 (2006.01); G06F 21/14 (2013.01); G06F 21/54 (2013.01);
U.S. Cl.
CPC ...
G06F 21/14 (2013.01); G06F 21/54 (2013.01);
Abstract
A function of a software program is stored in a memory during execution in a device of the software program. A processor relocates the function in a region of the memory comprising dummy code, transforms the dummy code in a predictable manner, generates a predicted checksum for the region based on a previous checksum, generates a calculated checksum over the region, and verifies the integrity of the function by comparing the predicted checksum and the calculated checksum. Also provided are a device and a computer program product.