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:
Dec. 09, 2025
Filed:
Dec. 27, 2021
Applicant:
Sandisk Technologies, Inc., Milpitas, CA (US);
Inventors:
Assignee:
Sandisk Technologies, Inc., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/72 (2006.01); G06F 17/17 (2006.01);
U.S. Cl.
CPC ...
G06F 7/722 (2013.01); G06F 17/17 (2013.01); G06F 7/724 (2013.01); G06F 7/728 (2013.01);
Abstract
A system performs big number multiplication during a cryptographic process. This can occur, for example, when a controller in a storage system encrypts data for storage in its memory or decrypts data read from its memory. To perform the multiplication of these big input numbers quickly, the system uses a modified Toom-Cook algorithm comprising a plurality of levels of coefficient vectors for each of the input numbers. This involves performing a sample extraction process, a point multiplication process, and an interpolation (synthesis) process.