公开(公告)号：US20210218574A1

公开(公告)日：2021-07-15

申请号：US17148992

申请日：2021-01-14

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

Inventor： Hongbin MAO ,  Siyuan PAN ,  Junjie YUAN ,  Haodong CHEN ,  Hui WANG

IPC: H04L9/32 ,  H04L9/06 ,  H04L9/08 ,  H04L29/06

Abstract: Embodiments of the present disclosure disclose a method and apparatus for verifying digital identity, a device and a storage medium, and relate to the technical field of blockchain. An implementation of the method can include: acquiring target login information of a target verifier, in response to a login operation of a target user on the target verifier; sending, based on the target login information, a login request including a target user decentralized identity (DID) of a target user to the target verifier, to authorize the target verifier to acquire a target claim of the target user from an identity hub of the target user and verify the target user DID and the target claim; and logging in to the target verifier using the target user DID, in response to the target user DID and the target claim passing the verification.

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：US20200311735A1

公开(公告)日：2020-10-01

申请号：US16691094

申请日：2019-11-21

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

Inventor： Siyuan PAN ,  Haodong CHEN ,  Hongbin MAO ,  Yuxiao SONG ,  Hang ZHOU ,  Hui WANG

IPC: G06Q20/40 ,  H04L9/06 ,  G06Q20/06 ,  G06Q20/36

Abstract: Embodiments of the present disclosure relate to the field of blockchain technology, disclose a method, apparatus, and storage medium for processing an ethereum-based falsified transaction, and solve the problem of the existing technologies failing to achieve validating falsification resistance of an ethereum consensus algorithm in engineering. The method includes: sending a falsified transaction to a preset node of in ethereum network, such that the preset node broadcasts a block including the falsified transaction to all nodes in the ethereum network; and determining whether the falsified transaction successfully attacks the ethereum network based on information on a chain maintained by a node in the ethereum network. The embodiments of the present disclosure apply to the process of validating the falsification attack resistance of the ethereum network consensus algorithm.

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.