公开(公告)号：US20210334796A1

公开(公告)日：2021-10-28

申请号：US17366969

申请日：2021-07-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei HE ,  Shuang WU ,  Tsz Hon YUEN

IPC: G06Q20/38

Abstract: Embodiments of this application provide a blockchain-based data processing method, a device, and a medium. The method includes: sending a first channel closing message on a chain-off channel; receiving a second signature in a second state and a second channel closing message that are sent on the off-chain channel, where the second signature is obtained by signing the second channel closing message; and signing a third channel closing message to obtain a first signature in the second state, and sending the first signature. This application can ensure transaction security and improve a transaction processing capability.