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. 12, 2014
Filed:
Dec. 26, 2012
Umm Al-qura University, Makkah, SA;
Turki Faisal Al-Somani, Makkah, SA;
Umm Al-Qura University, Makkah, SA;
Abstract
The system and method for securing scalar multiplication against differential power attacks (DPAs) delays required point additions in elliptic curve cryptosystem scalar multiplication. A buffer is used to store the points that will be added later in a random manner. Then, a randomly selected one of the stored points in the buffer is added to the accumulation point, or several randomly selected points are added consecutively. This makes the power trace appear as a repeated sequence of consecutive point doubling followed by consecutive point additions, which makes it very difficult for an attacker to know the exact value of the inspected bit during the scalar multiplication process.