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. 12, 2019
Filed:
Aug. 31, 2017
Applicant:
Square, Inc., San Francisco, CA (US);
Inventors:
Assignee:
Square, Inc., San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 21/75 (2013.01); G06Q 20/38 (2012.01); G06Q 20/40 (2012.01); G06F 1/28 (2006.01); G06F 1/30 (2006.01); G06Q 20/32 (2012.01); G06F 21/57 (2013.01);
U.S. Cl.
CPC ...
G06F 21/755 (2017.08); G06F 1/28 (2013.01); G06F 1/305 (2013.01); G06Q 20/382 (2013.01); G06Q 20/4014 (2013.01); G06F 21/575 (2013.01); G06Q 20/3278 (2013.01); G06Q 2220/00 (2013.01);
Abstract
A transaction device includes circuitry that provides a power supply to a processor of the transaction device. Attackers may attempt to glitch the processor power supply in a manner that causes processor to operate incorrectly such as by skipping instructions. A monitoring circuit may be coupled to the processor power supply circuitry to identify conditions that are indicative of a glitch attempt. Glitch attempts may be stored in a memory and reported to the processor to induce the execution of counter-measures.