公开(公告)号：US20210184835A1

公开(公告)日：2021-06-17

申请号：US16924901

申请日：2020-07-09

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

Inventor： Jingqi CAO ,  Silei CHENG ,  Lei ZHANG ,  Xiaohe LIU ,  Haodong CHEN ,  Hui WANG

IPC: H04L9/06 ,  H04L9/32 ,  H04L9/08 ,  G06F21/62

Abstract: Embodiments of the present disclosure provide a privacy transaction processing method, an electronic device and a storage medium, and relates to a field of blockchain technologies. The method includes: obtaining a business transaction request to be executed; if the business transaction request is a privacy business transaction request, obtaining a corresponding privacy key, in which the privacy key is an organization privacy key of a privacy organization to which the privacy business transaction request belongs; decrypting and executing the privacy business transaction request according to the privacy key to generate privacy business transaction data, in which the privacy business transaction data comprises at least associated information of privacy content data and the privacy business transaction request; and storing the privacy business transaction data in a blockchain, and storing the privacy content data locally.

公开(公告)号：US20210218576A1

公开(公告)日：2021-07-15

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 ,  H04L29/06

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.