公开(公告)号：US11039308B2

公开(公告)日：2021-06-15

申请号：US16577842

申请日：2019-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Elizabeth Quaglia ,  Benjamin Smyth ,  Tsz Hon Yuen

IPC: H04W12/00 ,  H04W12/03 ,  H04L9/06 ,  H04L9/08 ,  H04L9/32 ,  H04W12/06 ,  H04W12/041 ,  H04W12/55

Abstract: Embodiments relate to a wireless communication device of a group of wireless communication devices configured to communicate with a base station, the wireless communication device comprising a transceiver configured to receive a token from the base station and a processor configured to generate a first data structure on the basis of a function of the token and of a key ki of the wireless communication device and a second data structure comprising an identity idi of the wireless communication device, wherein the transceiver is further configured to broadcast the first data structure and the second data structure to the group of wireless communication devices and the base station.

公开(公告)号：US12058253B2

公开(公告)日：2024-08-06

申请号：US18069049

申请日：2022-12-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruifeng Hu ,  Feihu Jiang ,  Tsz Hon Yuen ,  Yaoguo Jiang ,  Haojun Zhou

IPC: H04L9/08 ,  H04L9/40 ,  H04W12/40 ,  H04L9/00

CPC classification number: H04L9/0891 ,  H04L9/0822 ,  H04L63/0884 ,  H04W12/40 ,  H04L9/50

Abstract: A method and an apparatus for controlling a data access right are disclosed. The method includes: receiving, by a first proxy node, a first request message from a request node, where the first request message includes an identity of the request node and an identifier of to-be-accessed data; determining a first encrypted ciphertext on a blockchain based on the identifier; determining, based on the identity, whether the request node has a right to read the first encrypted ciphertext; and if yes, initiating a right verification request for the request node to at least one second proxy node, and determining, based on a feedback result of the at least one second proxy node, provisioning of the first encrypted ciphertext. A proxy node is added to the blockchain network, so that a data source can freely grant or revoke the right of the request node without modifying a ciphertext, ensuring information security.

公开(公告)号：US11563569B2

公开(公告)日：2023-01-24

申请号：US17025873

申请日：2020-09-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ruifeng Hu ,  Feihu Jiang ,  Tsz Hon Yuen ,  Yaoguo Jiang ,  Haojun Zhou

IPC: H04W12/40 ,  H04L9/08 ,  H04L9/40 ,  H04L9/00

Abstract: A method and an apparatus for controlling a data access right are disclosed. The method includes: receiving, by a first proxy node, a first request message from a request node, where the first request message includes an identity of the request node and an identifier of to-be-accessed data; determining a first encrypted ciphertext on a blockchain based on the identifier; determining, based on the identity, whether the request node has a right to read the first encrypted ciphertext; and if yes, initiating a right verification request for the request node to at least one second proxy node, and determining, based on a feedback result of the at least one second proxy node, provisioning of the first encrypted ciphertext. A proxy node is added to the blockchain network, so that a data source can freely grant or revoke the right of the request node without modifying a ciphertext, ensuring information security.

公开(公告)号：US12141796B2

公开(公告)日：2024-11-12

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.

公开(公告)号：US20230119065A1

公开(公告)日：2023-04-20

申请号：US18069049

申请日：2022-12-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruifeng Hu ,  Feihu Jiang ,  Tsz Hon Yuen ,  Yaoguo Jiang ,  Haojun Zhou

IPC: H04L9/08 ,  H04W12/40 ,  H04L9/40

Abstract: A method and an apparatus for controlling a data access right are disclosed. The method includes: receiving, by a first proxy node, a first request message from a request node, where the first request message includes an identity of the request node and an identifier of to-be-accessed data; determining a first encrypted ciphertext on a blockchain based on the identifier; determining, based on the identity, whether the request node has a right to read the first encrypted ciphertext; and if yes, initiating a right verification request for the request node to at least one second proxy node, and determining, based on a feedback result of the at least one second proxy node, provisioning of the first encrypted ciphertext. A proxy node is added to the blockchain network, so that a data source can freely grant or revoke the right of the request node without modifying a ciphertext, ensuring information security.