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.

Date of Patent:
Feb. 07, 2017

Filed:

Nov. 10, 2014
Applicant:

Umm Al-qura University, Makkah, SA;

Inventors:

Hilal Houssain, Jeddah, SA;

Turki F. Al-Somani, Makkah, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/00 (2006.01); H04L 9/00 (2006.01); H04L 9/30 (2006.01);
U.S. Cl.
CPC ...
H04L 9/003 (2013.01); H04L 9/3066 (2013.01); H04L 2209/34 (2013.01);
Abstract

A method and device for protecting elliptic curve cryptography against simple power attacks is disclosed. The method is based on a processor such as a computer equipped to encrypt and decrypt communications and selecting and entering a point P on an elliptic curve in the computer. The processor provides k copies of the point P (kP). The processor is used to divide a string of Ks into two equal length partitions that are scanned from right to left and performing point doubling operation and delay the point addition operation by storing the some doubled points in a buffer for later performing of addition operation.


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