公开(公告)号：US11909886B2

公开(公告)日：2024-02-20

申请号：US17145121

申请日：2021-01-08

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

Inventor： Yang Meng ,  Haodong Chen ,  Yuxiao Song ,  Hui Wang ,  Xiangmin Li ,  Jingqi Cao

IPC: H04L9/32 ,  H04L9/06 ,  H04L9/40 ,  H04L9/00

CPC classification number: H04L9/3239 ,  H04L9/0618 ,  H04L9/0643 ,  H04L9/3247 ,  H04L63/0428 ,  H04L9/50

Abstract: Embodiments of the present disclosure provide methods and apparatuses for blockchain-based multi-party computation, a device and a medium, relate to blockchain technology in the field of computer technology. An embodiment of the method can include: encrypting business data, to obtain a ciphertext of the business data; hashing the ciphertext of the business data, to obtain a hash result of the business data; sending the hash result of the business data to a blockchain node, so that the blockchain node writes the hash result of the business data into a blockchain; and sending the ciphertext of the business data to a target trusted computing module in a target server, for instructing the target trusted computing module to perform multi-party computation based on the ciphertext of the business data and the hash result of the business data in the blockchain.