Patents by Inventor Emil HERNVALL

Emil HERNVALL 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).

  • Procedural code generation for challenge code
    Patent number: 11748460
    Abstract: A method by one or more computing devices for obfuscating challenge code. The method includes obtaining challenge code for interrogating a client, inserting, into the challenge code, code for obfuscating outputs that are to be generated by the client, where the code for obfuscating the outputs includes code for applying a first chain of reversible transformations to the outputs using client-generated random values, interning strings appearing in the challenge code with obfuscated strings, inserting code for deobfuscating the obfuscated strings into the challenge code, inlining function calls in the challenge code, removing function definitions that are unused in the challenge code due to the inlining, reordering the challenge code without changing the functionality of the challenge code, and providing the challenge code for execution by the client.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: September 5, 2023
    Assignee: Imperva, Inc.
    Inventors: Emil Hernvall, Daniel Spång
  • PROCEDURAL CODE GENERATION FOR CHALLENGE CODE
    Publication number: 20210334342
    Abstract: A method by one or more computing devices for obfuscating challenge code. The method includes obtaining challenge code for interrogating a client, inserting, into the challenge code, code for obfuscating outputs that are to be generated by the client, where the code for obfuscating the outputs includes code for applying a first chain of reversible transformations to the outputs using client-generated random values, interning strings appearing in the challenge code with obfuscated strings, inserting code for deobfuscating the obfuscated strings into the challenge code, inlining function calls in the challenge code, removing function definitions that are unused in the challenge code due to the inlining, reordering the challenge code without changing the functionality of the challenge code, and providing the challenge code for execution by the client.
    Type: Application
    Filed: October 30, 2020
    Publication date: October 28, 2021
    Applicant: Imperva, Inc.
    Inventors: Emil HERNVALL, Daniel SPÅNG