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:
Feb. 07, 2023
Filed:
Mar. 20, 2020
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventor:
Eric Thierry Peeters, Frisco, TX (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); G06F 7/72 (2006.01); H04L 9/00 (2022.01); H04L 9/30 (2006.01);
U.S. Cl.
CPC ...
G06F 7/725 (2013.01); H04L 9/003 (2013.01); H04L 9/3066 (2013.01); H04L 9/3252 (2013.01); H04L 2209/805 (2013.01);
Abstract
A method of performing finite field addition and doubling operations in an elliptic curve cryptography (ECC) authentication scheme as a countermeasure to side-channel attack. The addition and doubling operations are executed using atomic patterns that involve the same sequence and number of operation types, so that the noise consumption and electromagnetic emanation profile of circuitry performing the operations is identical regardless of operation. A subtraction operation using such an atomic pattern is also disclosed.