公开(公告)号：US12069172B2

公开(公告)日：2024-08-20

申请号：US17452496

申请日：2021-10-27

Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Inventor： Bo Jing ,  Peiqian Zhang ,  Hongyan Wang

IPC: H04L9/36 ,  H04L9/08 ,  H04L9/32 ,  H04L9/38

CPC classification number: H04L9/088 ,  H04L9/3247

Abstract: Provided are a group service implementation method and device, an equipment and a storage medium. The specific solution is described below. A service transaction request is acquired. In response to the service transaction request including to-be-authenticated data and a threshold signature, a signature group corresponding to the threshold signature is determined. Group information of the signature group is acquired by querying a blockchain, where the signature group includes at least two members, the at least two members of the signature group are used for authenticating the to-be-authenticated data by adopting secure multi-party computation and generating the threshold signature for the to-be-authenticated data by adopting a signature private key, and the group information includes at least a verification public key of the threshold signature. The threshold signature is verified by adopting the verification public key in the group information.

公开(公告)号：US11755567B1

公开(公告)日：2023-09-12

申请号：US18186119

申请日：2023-03-17

Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Inventor： Bo Jing ,  Hongyan Wang

IPC: H04L9/40 ,  G06F16/23 ,  H04L9/00 ,  H04L9/32 ,  G06F16/27

CPC classification number: G06F16/2379 ,  G06F16/27 ,  H04L9/3247 ,  H04L9/50

Abstract: Provided are a blockchain-based data verification method and apparatus, a device, and a storage medium, relating to the field of computer technology, for example, a blockchain technology, and applicable to cloud computing and cloud services. The solution includes acquiring a data verification transaction request initiated by a data owner; generating a response signature value in the current verification round according to the data verification transaction request; and sending the response signature value to a blockchain network. The response signature value is configured to instruct the blockchain network to verify whether the to-be-verified data block is stored in a data storer.