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:
Nov. 27, 2018
Filed:
Jul. 31, 2015
Applicant:
Nxp B.v., Eindhoven, NL;
Inventors:
Jan Hoogerbrugge, Eindhoven, NL;
Wil Michiels, Eindhoven, NL;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/14 (2013.01); G06F 21/60 (2013.01); G06F 21/50 (2013.01);
U.S. Cl.
CPC ...
G06F 21/14 (2013.01); G06F 21/50 (2013.01); G06F 21/602 (2013.01); G06F 2221/0748 (2013.01);
Abstract
A method of obscuring software code including a data array and a plurality of operations, including: identifying, by a processor, a data array with an index to be obscured and an operation using the data array; permutating the identified data array using a permutating function; and replacing the identified operation using the permutated data array and equivalent encoded permutation function.