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:
Jan. 06, 2026

Filed:

Feb. 20, 2019
Applicant:

Cryptography Research, Inc., Sunnyvale, CA (US);

Inventors:

Ilya Stupakov, Novosibirsk, RU;

Anton Kochepasov, San Francisco, CA (US);

Assignee:

Cryptography Research, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2022.01); G06F 17/16 (2006.01); G06F 21/55 (2013.01); G06F 21/57 (2013.01);
U.S. Cl.
CPC ...
H04L 9/003 (2013.01); G06F 17/16 (2013.01); G06F 21/556 (2013.01); G06F 21/577 (2013.01);
Abstract

Systems and methods for efficient computation of bivariate statistical moments. An example method comprises: determining exponents characterizing a bivariate mean value referenced by a definition of a statistical moment to be computed; receiving an input data set representing a plurality of observed values of one or more variables, the input data including a plurality of traces, each trace of the plurality of traces including a plurality of sample points; generating an initial matrix comprising combinations of pre-determined degrees of the sample points; producing an intermediate result matrix represented by a product of multiplying a transpose of the initial matrix by the initial matrix; retrieving an element of the intermediate result matrix, wherein indices of the element are defined based on the exponents; and using the retrieved element of the intermediate result matrix to compute the statistical moment.


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