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:
Sep. 30, 2014
Filed:
May. 14, 2009
Applicants:
Pierre-yvan Liardet, Peynier, FR;
Yannick Teglia, Marseilles, FR;
Inventors:
Pierre-Yvan Liardet, Peynier, FR;
Yannick Teglia, Marseilles, FR;
Assignee:
STMicroelectronics (Rousset) SAS, Rousset, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); H04L 9/32 (2006.01); H04L 29/06 (2006.01); H04L 9/08 (2006.01); G06F 21/10 (2013.01); G06F 17/30 (2006.01); H04K 1/00 (2006.01);
U.S. Cl.
CPC ...
H04L 9/00 (2013.01); H04L 9/32 (2013.01); H04L 63/12 (2013.01); H04L 9/08 (2013.01); G06F 21/10 (2013.01); G06F 17/30 (2013.01); H04K 1/00 (2013.01);
Abstract
A method for verifying the integrity of a key implemented in a symmetrical ciphering or deciphering algorithm, including the steps of complementing to one at least the key; and verifying the coherence between two executions of the algorithm, respectively with the key and with the key complemented to one.