Patents by Inventor Kristina Hostak

Kristina Hostak 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: 10984139
    Abstract: Systems, methods, and apparatuses can protecting a secret on a device with limited memory, while still providing tamper resistance. To achieve the lower memory usage, embodiments can apply a memory-hard function MHF to the secret S to obtain a result Y, which can be used in an encoding process to obtain a code C. After applying the MHF, a prove function can generate a proof value that is used in a decoding (e.g., a verification of computation process) of the code C. The code C can include the proof value, the secret S, and the result Y, and can be sent to a decoding device that verifies the code C as part of a decoding process.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: April 20, 2021
    Assignee: VISA INTERNATIONAL SERVICE ASSOCIATION
    Inventors: Pratyay Mukherjee, Kristina Hostak