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. 06, 2022
Filed:
Feb. 02, 2021
United States Government As Represented BY the Secretary of the Navy, San Diego, CA (US);
Ryan C. Gabrys, San Diego, CA (US);
Luis M. Martinez, San Diego, CA (US);
Sunny James Fugate, San Diego, CA (US);
United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A method for hiding information in executable code comprising: identifying a set of pairs of interchangeable instructions, wherein each pair has an instruction order of execution that is reversible without changing a functionality of the executable code; organizing the pairs into a plurality of matrices based on a set of random seeds; for each matrix, inverting a submatrix consisting of a subset of columns from each matrix to identify a subset of pairs; identifying a matrix that has full column rank on a subset of columns that is a function of the pairs' location; storing an index of the identified matrix's associated seed in a secure data storage location; and encoding data into the executable code by reversing the order of execution of the subset of pairs and treating each pair having reversed instructions as a '1' and each pair of non-reversed instructions as a '0' or vice versa.