Patents by Inventor Antonio Cortes Perez

Antonio Cortes Perez 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).

  • Publication number: 20240152361
    Abstract: This document describes techniques and apparatuses that enable determining expected hash-values in functions with control flow. A computing device receives a function comprising function instructions within at least three basic blocks connected via multiple execution paths. Hash-input instructions are inserted within a plurality of the basic blocks that indirectly force hash values at the respective insertion points. Hash values at ends of the plurality of the basic blocks are set to a canonical value and an expected hash-value and hash input-values are calculated using a hash function. By using the canonical value and the hash input-values, the expected hash-value is the same regardless of which execution path is executed.
    Type: Application
    Filed: January 18, 2024
    Publication date: May 9, 2024
    Applicant: Google LLC
    Inventors: Nathaniel Casey Voorhies, Antonio Cortes Perez
  • Patent number: 11880688
    Abstract: This document describes techniques and apparatuses that enable determining expected hash-values in functions with control flow. A computing device receives a function comprising function instructions within at least three basic blocks connected via multiple execution paths. Hash-input instructions are inserted within a plurality of the basic blocks that indirectly force hash values at the respective insertion points. Hash values at ends of the plurality of the basic blocks are set to a canonical value and an expected hash-value and hash input-values are calculated using a hash function. By using the canonical value and the hash input-values, the expected hash-value is the same regardless of which execution path is executed.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: January 23, 2024
    Assignee: Google LLC
    Inventors: Nathaniel Casey Voorhies, Antonio Cortes Perez
  • Publication number: 20220300291
    Abstract: This document describes techniques and apparatuses that enable determining expected hash-values in functions with control flow. A computing device receives a function comprising function instructions within at least three basic blocks connected via multiple execution paths. Hash-input instructions are inserted within a plurality of the basic blocks that indirectly force hash values at the respective insertion points. Hash values at ends of the plurality of the basic blocks are set to a canonical value and an expected hash-value and hash input-values are calculated using a hash function. By using the canonical value and the hash input-values, the expected hash-value is the same regardless of which execution path is executed.
    Type: Application
    Filed: September 30, 2020
    Publication date: September 22, 2022
    Applicant: Google LLC
    Inventors: Nathaniel Casey Voorhies, Antonio Cortes Perez