Patents by Inventor Jesper Buus NIELSEN

Jesper Buus NIELSEN 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).

  • Method for providing a digital signature to a message
    Patent number: 11757657
    Abstract: A method for providing a digital signature to a message, M, in accordance with a digital signature algorithm (DSA) or an elliptic curve digital signature algorithm (ECDSA) is disclosed. A secret key, x, is generated as a random secret sharing [x] among at least two parties, such as among at least three parties. Random secret sharings, [a] and [k], are generated among the at least two parties and [w]=[a][k], R=gk and W=Ra are computed and their correctness verified. [w] is verified by checking whether or not gw=W. The message, M, is signed by generating a sharing, [s], among the at least two parties, using at least M, [w], R and [x].
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: September 12, 2023
    Assignee: SEPIOR APS
    Inventors: Thomas Pelle Jakobsen, Ivan Bjerre Damgard, Michael Bæksvang Ostergaard, Jesper Buus Nielsen
  • A METHOD FOR PROVIDING A DIGITAL SIGNATURE TO A MESSAGE
    Publication number: 20220150076
    Abstract: A method for providing a digital signature to a message, M, in accordance with a digital signature algorithm (DSA) or an elliptic curve digital signature algorithm (ECDSA) is disclosed. A secret key, x, is generated as a random secret sharing [x] among at least two parties, such as among at least three parties. Random secret sharings, [a] and [k], are generated among the at least two parties and [w]=[a][k], R=gk and W=Ra are computed and their correctness verified. [w] is verified by checking whether or not gw=W. The message, M, is signed by generating a sharing, [s], among the at least two parties, using at least M, [w], R and [x].
    Type: Application
    Filed: February 7, 2020
    Publication date: May 12, 2022
    Inventors: Thomas Pelle JAKOBSEN, Ivan Bjerre DAMGARD, Michael Bæksvang OSTERGAARD, Jesper Buus NIELSEN