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:
Jun. 17, 2014
Filed:
Oct. 19, 2012
Apple Inc, Cupertino, CA (US);
Julien Lerouge, San Jose, CA (US);
Jonathan G. McLachlan, San Francisco, CA (US);
Daniel F. Reynaud, Mountain View, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Methods, media and systems that obfuscate control flow in software programs. The obfuscation can impede or prevent static flow analysis of a software program's control flow. In one embodiment, a method, performed by a data processing system, identifies each branch point in a set of branch points in a first version of software and replaces, in each branch point in the set, a representation of a target of the branch point with a computed value that depends upon at least one prior computed value in a stream of instructions in the first version of software. Other embodiments are also described.