Patents by Inventor Mark Argent

Mark Argent 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).

  • Encrypted end-to-end messaging using near-field communication (NFC) tags
    Patent number: 12587838
    Abstract: A computer-implemented method, according to one embodiment, includes using a first symmetric key to encrypt a first private key of a first asymmetric key pair, and storing the encrypted first private key on a predetermined near-field communication (NFC) tag. The method further includes storing a first public key of the first asymmetric key pair and the first symmetric key on a predetermined central repository, and obtaining an encrypted first message and an encrypted first group key from the central repository. The encrypted first message was encrypted using the first group key, and the encrypted first group key is the first group key encrypted using the first public key. The method further includes using the encrypted first private key stored on the predetermined NFC tag to decrypt the encrypted first message.
    Type: Grant
    Filed: October 19, 2023
    Date of Patent: March 24, 2026
    Assignee: International Business Machines Corporation
    Inventors: Simon Carter, Mark Argent, Sarah Neenan
  • ENCRYPTED END-TO-END MESSAGING USING NEAR-FIELD COMMUNICATION (NFC) TAGS
    Publication number: 20250133392
    Abstract: A computer-implemented method, according to one embodiment, includes using a first symmetric key to encrypt a first private key of a first asymmetric key pair, and storing the encrypted first private key on a predetermined near-field communication (NFC) tag. The method further includes storing a first public key of the first asymmetric key pair and the first symmetric key on a predetermined central repository, and obtaining an encrypted first message and an encrypted first group key from the central repository. The encrypted first message was encrypted using the first group key, and the encrypted first group key is the first group key encrypted using the first public key. The method further includes using the encrypted first private key stored on the predetermined NFC tag to decrypt the encrypted first message.
    Type: Application
    Filed: October 19, 2023
    Publication date: April 24, 2025
    Inventors: Simon Carter, Mark Argent, Sarah Neenan