Patents by Inventor Jason A. Harmening

Jason A. Harmening 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).

  • Page protection layer
    Patent number: 11188477
    Abstract: In an embodiment, a computer system comprises a page protection layer. The page protection layer may be the component in the system which manages the page tables for virtual to physical page mappings. Transactions to the page protection layer are used to create/manage mappings created in the page tables. The page protection layer may enforce dynamic security policies in the system (i.e. security policies that may not be enforced using only a static hardware configuration). In an embodiment, the page protection layer may ensure that it is the only component which is able to modify the page tables. The page protection layer may ensure than no component in the system is able to modify a page that is marked executable in any process' address space. The page protection may ensure that any page that is marked executable has code with a verified code signature, in an embodiment.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: November 30, 2021
    Assignee: Apple Inc.
    Inventors: Julien Oster, Thomas G. Holland, Bernard J. Semeria, Jason A. Harmening, Pierre-Olivier J. Martel, Gregory D. Hughes, P. Love Hornquist Astrand, Jacques Fortier, Ryan P. Nielson, Simon P. Cooper
  • Page Protection Layer
    Publication number: 20200081847
    Abstract: In an embodiment, a computer system comprises a page protection layer. The page protection layer may be the component in the system which manages the page tables for virtual to physical page mappings. Transactions to the page protection layer are used to create/manage mappings created in the page tables. The page protection layer may enforce dynamic security policies in the system (i.e. security policies that may not be enforced using only a static hardware configuration). In an embodiment, the page protection layer may ensure that it is the only component which is able to modify the page tables. The page protection layer may ensure than no component in the system is able to modify a page that is marked executable in any process' address space. The page protection may ensure that any page that is marked executable has code with a verified code signature, in an embodiment.
    Type: Application
    Filed: September 9, 2019
    Publication date: March 12, 2020
    Inventors: Julien Oster, Thomas G. Holland, Bernard J. Semeria, Jason A. Harmening, Pierre-Olivier J. Martel, Gregory D. Hughes, P. Love Hornquist Astrand, Jacques Fortier, Ryan P. Nielson, Simon P. Cooper