Patents by Inventor Bertram Poettering

Bertram Poettering 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).

  • Secure digital signature schemes
    Patent number: 12603786
    Abstract: A computer-implemented method, according to one approach, includes: computing a first cryptographic term in response to receiving a session request from a user. The first cryptographic term is split into an initial portion and a remainder portion, where the remainder portion includes at least one bit. The initial portion of the first cryptographic term is sent to the user, and two or more different potential second cryptographic terms are received from the user. The at least one bit in the remainder portion is used to determine a correct one of the potential second cryptographic terms. Moreover, the correct one of the potential second cryptographic terms is used to compute a third cryptographic term. Furthermore, the third cryptographic term is sent to the user.
    Type: Grant
    Filed: June 26, 2024
    Date of Patent: April 14, 2026
    Assignee: International Business Machines Corporation
    Inventors: Simon Rastikian, Bertram Poettering
  • SECURE DIGITAL SIGNATURE SCHEMES
    Publication number: 20260005870
    Abstract: A computer-implemented method, according to one approach, includes: computing a first cryptographic term in response to receiving a session request from a user. The first cryptographic term is split into an initial portion and a remainder portion, where the remainder portion includes at least one bit. The initial portion of the first cryptographic term is sent to the user, and two or more different potential second cryptographic terms are received from the user. The at least one bit in the remainder portion is used to determine a correct one of the potential second cryptographic terms. Moreover, the correct one of the potential second cryptographic terms is used to compute a third cryptographic term. Furthermore, the third cryptographic term is sent to the user.
    Type: Application
    Filed: June 26, 2024
    Publication date: January 1, 2026
    Inventors: Simon Rastikian, Bertram Poettering