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. 13, 2021
Filed:
Jan. 17, 2019
Tsinghua University, Beijing, CN;
TSINGHUA UNIVERSITY, Beijing, CN;
Abstract
The present disclosure provides a processor checking method, a checking device and a checking system. The method includes acquiring an access record to a memory by a processor during a running process, the access record includes a read operation information and a corresponding time information, determining whether there is a read operation information corresponding to a high access authority in the access record, and when there is a read operation information corresponding to a high access authority, determining whether the read operation information corresponding to the high access authority belongs to an unauthorized operation. According to embodiments of the present disclosure, the behavior of the processor reading data from the memory is checked and analyzed, thereby preventing the security problems caused by malicious use of unauthorized reading operation.