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:
Sep. 21, 2021
Filed:
Nov. 26, 2019
Bicdroid Inc., Petersburg, CA;
BICDROID INC., Petersburg, CA;
Abstract
An access control system includes a processor configured to provide a trusted execution environment isolated from a rich execution environment. A rich OS operates in the rich execution environment while a trusted OS operates in the trusted execution environment. A plurality of protected data files are stored in non-volatile memory. When a process requests access to a protected data file, the computer system can permit the requesting process to access the requested data file only if a validated application token is present that corresponds to the requesting process. An application token is generated for the associated application by: detecting initiation of a first process associated with the associated application; determining that a valid user code is available within the trusted execution environment; and generating the application token using the valid user code upon determining that the valid user code is available within the trusted execution environment.