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. 12, 2013
Filed:
Oct. 26, 2011
Natarajan Shankar, Los Altos, CA (US);
Richard Drews Dean, Arlington, VA (US);
Natarajan Shankar, Los Altos, CA (US);
Richard Drews Dean, Arlington, VA (US);
SRI International, Menlo Park, CA (US);
Abstract
A method for transforming untrusted applications into trusted executables through static previrtualization is disclosed. For example, the method receives an untrusted application and extracts a system call from the untrusted application. The method then determines if the system call is privileged or non-privileged. If the system call is privileged, the method replaces the system call with a hypercall. If the system call is non-privileged, it is replaced with a library call. The method repeats this process for additional system calls in the untrusted application to create a trusted executable. The method then forwards the trusted executable.