Patents by Inventor Eric D. Laspe

Eric D. Laspe 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).

  • Preventing unauthorized calls to a protected function
    Patent number: 9721120
    Abstract: An obfuscated program can be configured to resist attacks in which an attacker directly calls a non-entry function by verifying that an execution path to the function is an authorized execution path. To detect an unauthorized execution order, a secret value is embedded in each function along an authorized execution path. At runtime, the secrets are combined to generate a runtime representation of the execution path, and the runtime representation is verified against an expected value. To perform the verification, a verification polynomial is evaluated using the runtime representation as input. A verification value result of zero means the execution path is an authorized execution path.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: August 1, 2017
    Assignee: Apple Inc.
    Inventors: Jon McLachlan, Julien Lerouge, Daniel F. Reynaud, Eric D. Laspe
  • Intrinsic physical layer authentication of integrated circuits
    Patent number: 9036891
    Abstract: A system and method of generating and comparing a fingerprint for an integrated circuit is provided. A sensor module captures electromagnetic emissions from the integrated circuit. A feature extraction module extracts discriminating features from the captured electromagnetic emissions. A classifier training module generates a plurality of authentication fingerprints of the integrated circuit from the extracted discriminating features creating a reference fingerprint template for the integrated circuit. The reference template for the integrated circuit is stored in a database. For authentication, the reference fingerprint template from the database is compared to the generated authentication fingerprint.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: May 19, 2015
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: William E Cobb, Michael A. Temple, Rusty O. Baldwin, Eric W Garcia, Eric D. Laspe
  • PREVENTING UNAUTHORIZED CALLS TO A PROTECTED FUNCTION
    Publication number: 20140344924
    Abstract: An obfuscated program can be configured to resist attacks in which an attacker directly calls a non-entry function by verifying that an execution path to the function is an authorized execution path. To detect an unauthorized execution order, a secret value is embedded in each function along an authorized execution path. At runtime, the secrets are combined to generate a runtime representation of the execution path, and the runtime representation is verified against an expected value. To perform the verification, a verification polynomial is evaluated using the runtime representation as input. A verification value result of zero means the execution path is an authorized execution path.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 20, 2014
    Applicant: Apple Inc.
    Inventors: Jon McLachlan, Julien Lerouge, Daniel F. Reynaud, Eric D. Laspe