Patents by Inventor Peeter Laud

Peeter Laud 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).

  • Composite digital signatures
    Patent number: 11251970
    Abstract: Disclosed herein is a method for generating a composite cryptographic signature. The method comprises receiving a message and a first part of a first party signature, wherein the first part of the first party signature is derived from the message and a first share of a first private key. The method further comprises generating a first party signature from the first part of the first party signature and a second share of the first private key and generating a second party signature from the message and a second private key. The method further comprises combining the first party signature and the second party signature to generate a composite cryptographic signature. An apparatus, a computer-readable medium for implementing this method are also disclosed.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: February 15, 2022
    Assignee: CYBERNETICA AS
    Inventors: Ahto Buldas, Peeter Laud, Mart Oruaas, Aivo Kalu
  • COMPOSITE DIGITAL SIGNATURES
    Publication number: 20200044861
    Abstract: Disclosed herein is a method for generating a composite cryptographic signature. The method comprises receiving a message and a first part of a first party signature, wherein the first part of the first party signature is derived from the message and a first share of a first private key. The method further comprises generating a first party signature from the first part of the first party signature and a second share of the first private key and generating a second party signature from the message and a second private key. The method further comprises combining the first party signature and the second party signature to generate a composite cryptographic signature. An apparatus, a computer-readable medium for implementing this method are also disclosed.
    Type: Application
    Filed: October 9, 2017
    Publication date: February 6, 2020
    Inventors: Ahto Buldas, Peeter Laud, Mart Oruaas, Aivo Kalu