Patents by Inventor Li Lei WU

Li Lei WU 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: 11128450
    Abstract: A signature generation method performed by an electronic apparatus is provided. A message abstract is generated according to a to-be-signed message and eigenvalues of a plurality of signature parties, an eigenvalue of a signature party being based on a random number of the signature party. Public keys and sub signatures of the plurality of signature parties are obtained, and a sub signature of the signature party is based on the random number of the signature party, the message abstract, and private keys of the plurality of signature parties. An aggregation public key is generated according to the public keys of the plurality of signature parties, and a length of the aggregation public key is less than a length of the plurality of public keys after splicing. An aggregation signature is generated according to a sum value of the plurality of sub signatures and the message abstract.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: September 21, 2021
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LTD
    Inventors: Jian Jun Zhang, Li Lei Wu, Hai Tao Tu, Mao Cai Li, Li Kong, Zi Chao Tang, Wen Wei Zou, Jun Zang
  • Publication number: 20200076586
    Abstract: A signature generation method performed by an electronic apparatus is provided. A message abstract is generated according to a to-be-signed message and eigenvalues of a plurality of signature parties, an eigenvalue of a signature party being based on a random number of the signature party. Public keys and sub signatures of the plurality of signature parties are obtained, and a sub signature of the signature party is based on the random number of the signature party, the message abstract, and private keys of the plurality of signature parties. An aggregation public key is generated according to the public keys of the plurality of signature parties, and a length of the aggregation public key is less than a length of the plurality of public keys after splicing. An aggregation signature is generated according to a sum value of the plurality of sub signatures and the message abstract.
    Type: Application
    Filed: November 7, 2019
    Publication date: March 5, 2020
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Jian Jun ZHANG, Li Lei WU, Hai Tao TU, Mao Cai LI, Li KONG, Zi Chao TANG, Wen Wei ZOU, Jun ZANG