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:
Jul. 06, 2021

Filed:

Dec. 16, 2019
Applicant:

Nxp B.v., Eindhoven, NL;

Inventors:

Jan Hoogerbrugge, Helmond, NL;

Marcel Medwed, Steiermark, AT;

Assignee:

NXP B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 8/35 (2018.01); G06F 8/41 (2018.01); G06F 11/36 (2006.01);
U.S. Cl.
CPC ...
G06F 11/3624 (2013.01); G06F 8/41 (2013.01); G06F 8/434 (2013.01);
Abstract

A system and method for accessing a tagged global variable in software, including: randomly generating tags for global variables in the software; tagging the global variables with the random tags; creating a pointer to each global variable with the random tags in unused bits of the pointer wherein the pointer points to the associated global variable; accessing one global variable indirectly using the tagged pointer; determining whether tag on the accessed global variable matches the tag on the accessed pointer; and indicating a fault when the tag on the accessed global variable does not match the tag on the accessed pointer.


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