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:
May. 28, 2019
Filed:
Sep. 23, 2016
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Gregory D. Hughes, San Francisco, CA (US);
Ivan Krstic, San Francisco, CA (US);
Oliver J. Hunt, San Francisco, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2013.01); G06F 21/57 (2013.01); G06F 9/455 (2018.01); G06F 21/53 (2013.01); G06F 3/06 (2006.01); G06F 12/10 (2016.01);
U.S. Cl.
CPC ...
G06F 21/575 (2013.01); G06F 3/065 (2013.01); G06F 3/0622 (2013.01); G06F 3/0631 (2013.01); G06F 3/0634 (2013.01); G06F 9/4552 (2013.01); G06F 12/10 (2013.01); G06F 21/53 (2013.01); G06F 2212/1052 (2013.01); G06F 2221/033 (2013.01);
Abstract
Methods and systems for securely executing untrusted software are described. In one embodiment, two virtual memory mappings are used (one readable/writeable-RW and the other readable/executable-RX). In one embodiment, compiled software is used at run time through pointers to the RX virtual memory space and a compiler causes the storage of the compiled software in the RW virtual memory space through the use of an executable function (e.g. a memory copy like function) stored in an executable only memory region.