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. 28, 2013
Filed:
Nov. 02, 2010
Pierre-yvan Liardet, Peynier, FR;
Fabrice Marinet, Chateauneuf le Rouge, FR;
Pierre-Yvan Liardet, Peynier, FR;
Fabrice Marinet, Chateauneuf le Rouge, FR;
STMicroelectronics (Rousset) SAS, Rousset, FR;
Abstract
A method for protecting a key used, by an electronic circuit, in a symmetrical algorithm for ciphering or deciphering a message, including the steps of complementing to one the key and the message; executing the algorithm twice, respectively with the key and the message and with the key and the message complemented to one, the selection between that of the executions which processes the key and the message and that which processes the key and the message complemented to one being random; and checking the consistency between the two executions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile