公开(公告)号：US11595196B2

公开(公告)日：2023-02-28

申请号：US17069317

申请日：2020-10-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhengyu Li ,  Changzheng Su ,  Su Hu ,  Yang Zou

IPC: H04L9/08 ,  G06N10/00 ,  H04L9/06

Abstract: This application provide quantum key distribution methods, devices, and storage media. In an implementation, a method comprises: determining, based on a first mapping, a first quantum key of N first quantum keys corresponding to an ith node on a target routing path; determining, based on a second mapping, a second quantum key of N second quantum keys corresponding to the ith node; and generating, by the ith node based on the first quantum key corresponding to the ith node and the second quantum key corresponding to the ith node, a third quantum key corresponding to the ith node on the target routing path.

公开(公告)号：US12028450B2

公开(公告)日：2024-07-02

申请号：US16402525

申请日：2019-05-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changzheng Su ,  Liangliang Lu ,  Su Hu ,  Xianlong Luo

IPC: H04L9/08

CPC classification number: H04L9/0855 ,  H04L9/08 ,  H04L9/0838

Abstract: Embodiments of this application relate to the field of communications technologies. The embodiments of this application are applicable to a centralized management and control network. A centralized controller obtains Z service requests, globally determines, based on an identifier of a source service node and an identifier of a destination service node that are corresponding to each of the Z service requests, a quantum key consumption parameter, and topology information of key nodes in the centralized management and control network, globally optimal key relay instructions corresponding to G service requests, and further delivers the key relay instructions corresponding to the G service requests to key nodes corresponding to the key relay instructions, so that the key nodes perform quantum key relay based on the key relay instructions, to generate a shared quantum key between the source key node and the destination key node.

公开(公告)号：US20190260581A1

公开(公告)日：2019-08-22

申请号：US16402525

申请日：2019-05-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changzheng Su ,  Liangliang Lu ,  Su Hu ,  Xianlong Luo

IPC: H04L9/08

Abstract: Embodiments of this application relate to the field of communications technologies. The embodiments of this application are applicable to a centralized management and control network. A centralized controller obtains Z service requests, globally determines, based on an identifier of a source service node and an identifier of a destination service node that are corresponding to each of the Z service requests, a quantum key consumption parameter, and topology information of key nodes in the centralized management and control network, globally optimal key relay instructions corresponding to G service requests, and further delivers the key relay instructions corresponding to the G service requests to key nodes corresponding to the key relay instructions, so that the key nodes perform quantum key relay based on the key relay instructions, to generate a shared quantum key between the source key node and the destination key node.