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:
Mar. 13, 2018
Filed:
Sep. 17, 2015
Wind River Systems, Inc., Alameda, CA (US);
Mati Sauks, Alameda, CA (US);
WIND RIVER SYSTEMS, INC., Alameda, CA (US);
Abstract
A method and system encrypts data in a least privileged operating system. The method includes determining a first encryption scheme to be used with software code to be mapped to a virtual memory. The method includes mapping a first portion of the virtual memory with the software code for access by a processor using the first encryption scheme. The method includes receiving a call for an entry point of the operating system. The method includes determining a second encryption scheme to be used with the entry point when mapped to the virtual memory. The method includes mapping a second portion of the virtual memory for executing entry point code associated with the entry point for access by the processor using the second encryption scheme. The processor executing the software code is permitted to access only data from the first and second portions of the virtual memory.