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.

Date of Patent:
Sep. 03, 2019

Filed:

Jun. 15, 2017
Applicant:

Nec Laboratories America, Inc., Princeton, NJ (US);

Inventors:

Junghwan Rhee, Princeton, NJ (US);

Yuseok Jeon, West Lafayette, IN (US);

Zhichun Li, Princeton, NJ (US);

Kangkook Jee, Princeton, NJ (US);

Zhenyu Wu, Plainsboro, NJ (US);

Guofei Jiang, Princeton, NJ (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/56 (2013.01); G06F 21/62 (2013.01); G06F 21/54 (2013.01); G06F 21/57 (2013.01);
U.S. Cl.
CPC ...
G06F 21/566 (2013.01); G06F 21/54 (2013.01); G06F 21/563 (2013.01); G06F 21/577 (2013.01); G06F 21/6218 (2013.01); G06F 2221/034 (2013.01); G06F 2221/2141 (2013.01);
Abstract

A computer-implemented method for analyzing operations of privilege changes is presented. The computer-implemented method includes inputting a program and performing source code analysis on the program by generating a privilege control flow graph (PCFG), generating a privilege data flow graph (PDFG), and generating a privilege call context graph (PCCG). The computer-implemented method further includes, based on the source code analysis results, instrumenting the program to perform inspections on execution states at privilege change operations, and performing runtime inspection and anomaly prevention.


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