According to the enterprise search app, on January 12, Huawei Technologies Co., Ltd. was authorized to publish a patent related to “a quantum key distribution system, method, and equipment”, with the publication number CN108737083B.
The patent abstract shows that the patent is a quantum key distribution system, method, and device, which helps reduce the complexity and cost of quantum key distribution.
The quantum key distribution system includes a first communication device, a second communication device, a third-party system, a first measurement device, and a second measurement device.
The first measuring device is configured to generate a first receiving response after determining that the receiving position and receiving time of the first photon sent by the first communication device and the receiving position and receiving time of the third photon sent by the third-party system satisfy the preset pattern.
The second measuring device is configured to generate a second receiving response after determining that the receiving position and receiving time of the second photon sent by the second communication device and the receiving position and receiving time of the fourth photon sent by the third-party system satisfy the preset pattern.
The first communication device and the second communication device respectively determine the bit value according to the phase of the photon after receiving the first reception response and the second reception response and save the determined bit value as a shared quantum key.
(Via)
