Patents by Inventor Mathiew Ciet

Mathiew Ciet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8495390
    Abstract: Disclosed herein are systems, computer-implemented methods, and computer-readable storage media for obfuscating data based on a discrete logarithm. A system practicing the method identifies a clear value in source code, replaces the clear value in the source code with a transformed value based on the clear value and a discrete logarithm, and updates portions of the source code that refer to the clear value such that interactions with the transformed value provide a same result as interactions with the clear value. This discrete logarithm approach can be implemented in three variations. The first variation obfuscates some or all of the clear values in loops. The second variation obfuscates data in a process. The third variation obfuscates data pointers, including tables and arrays. The third variation also preserves the ability to use pointer arithmetic.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: July 23, 2013
    Assignee: Apple Inc.
    Inventors: Augustin J. Farrugia, Benoit Chevallier-Mames, Mathiew Ciet, Jon McLachlan