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:
Jul. 31, 2018
Filed:
Feb. 28, 2017
Square, Inc., San Francisco, CA (US);
Dino Dai Zovi, Brooklyn, NY (US);
Eric Monti, San Francisco, CA (US);
SQUARE, INC., San Francisco, CA (US);
Abstract
Some examples include sending, to a secure environment, coordinates for certain touch events made to a touchscreen of an electronic device. As one example, an import address table that is accessed by an event loop of the electronic device may be modified. For instance, only those touch events that are performed within the bounds of a user interface area may be diverted to the secure environment, and all touch events outside that area may continue to be identified, such as by using operating system libraries of the electronic device. In some cases, a checksum may be generated for the import address table using a cryptographic hash function. The checksum may allow a payment application and/or a payment processing system to determine whether an unauthorized modification of the import address table is present.