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. 19, 2024
Filed:
Sep. 14, 2020
Alibaba Group Holding Limited, George Town, KY;
Xiaoxia Cui, Hangzhou, CN;
Abstract
Performing controlled access to data stored in a secure partition is described herein, including: associating a predetermined exception with an exception handling program in an operating system; restricting a user program to execution by a normal privilege user; and designating a secure partition and restricting the secure partition to be accessible by a highest privilege user; wherein, when executed in user space corresponding to the normal privilege user, the user program generates the predetermined exception, and wherein the predetermined exception triggers execution of the exception handling program in kernel space, and the exception handling program is configured to read data from the secure partition and deliver the data after processing to the user program.