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:
Sep. 08, 2015
Filed:
Sep. 14, 2012
Oliver J. Hunt, San Francisco, CA (US);
Gavin Barraclough, Santa Clara, CA (US);
Filip J. Pizlo, Capitola, CA (US);
Geoffrey Garen, San Jose, CA (US);
Oliver J. Hunt, San Francisco, CA (US);
Gavin Barraclough, Santa Clara, CA (US);
Filip J. Pizlo, Capitola, CA (US);
Geoffrey Garen, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A method and an apparatus for runtime compilation that generates non-deterministic and unpredictable code to protect against un-trusted code attacks are described. The runtime compilation may be based on heuristic rules without requiring deterministic behavior reduction operations for all the code generated. The heuristic rules may include estimations on, for example, runtime overhead or cost incurred for code protection, amount of code protection required and/or other applicable factors and their relationships.