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:
Aug. 11, 2020
Filed:
Sep. 05, 2018
Applicant:
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Inventor:
Thomas Hiscock, Grenoble, FR;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/72 (2006.01); H04L 9/30 (2006.01); G06F 7/38 (2006.01); G06F 12/0895 (2016.01); G06F 12/14 (2006.01); G11C 7/10 (2006.01); G09C 1/00 (2006.01);
U.S. Cl.
CPC ...
G06F 7/72 (2013.01); G06F 7/38 (2013.01); G06F 12/0895 (2013.01); G06F 12/1408 (2013.01); G09C 1/00 (2013.01); G11C 7/1006 (2013.01); H04L 9/302 (2013.01); H04L 9/3013 (2013.01); H04L 2209/122 (2013.01);
Abstract
A modular reduction device particularly for cryptography on elliptical curves. The device includes a Barrett modular reduction circuit and a cache memory in which the results of some precalculations are carried out. When the result is not present in the cache memory, a binary division circuit makes the precalculation and stores the result in the cache memory.