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:
Nov. 24, 2015
Filed:
Nov. 08, 2010
Applicants:
Sylvain Guilley, Paris, FR;
Jean-luc Danger, Antony, FR;
Inventors:
Sylvain Guilley, Paris, FR;
Jean-Luc Danger, Antony, FR;
Assignee:
Institut Telecom—Telecom Paris Tech, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/28 (2006.01); H04L 9/00 (2006.01); H04L 9/06 (2006.01);
U.S. Cl.
CPC ...
H04L 9/28 (2013.01); H04L 9/003 (2013.01); H04L 9/0618 (2013.01); H04L 2209/046 (2013.01); H04L 2209/12 (2013.01);
Abstract
A cryptography circuit protected by masking, said circuit including means for encrypting binary words using at least one key k, means for applying linear processing operations and nonlinear processing operations to said words and means for masking said words. The binary words are unmasked upstream of the nonlinear processing operations by using a mask kand masked downstream of said processing operations by using a mask k, the masks kand kbeing chosen from a set of masks that is specific to each instance of the circuit.