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Information transmission encryption method based on combination of Beidou satellite and quantum communication technology

A quantum communication and Beidou satellite technology, applied in the field of communication, can solve difficult problems

Inactive Publication Date: 2019-04-05
有份儿智慧科技股份有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

However, due to the attenuation of photons during transmission, it is very difficult to realize long-distance optical fiber quantum secure communication in practical applications. At present, the maximum transmission distance of quantum cryptography in optical fiber is only about 200 kilometers

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  • Information transmission encryption method based on combination of Beidou satellite and quantum communication technology

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention, that is, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0026] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the...

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Abstract

The invention discloses an information transmission encryption method based on combination of a Beidou satellite and a quantum communication technology. A quantum key distribution device and a quantumcommunication device are arranged on the Beidou satellite, and encrypted information transmission and communication are carried out through the Beidou satellite and a ground optical fiber quantum communication network. The method of encrypted information transmission and communication comprises the following steps: the ground optical fiber quantum communication network transmits entanglement photons through a quantum entanglement distribution technology for quantum communication between the ground optical fiber quantum communication network and the quantum communication device of the Beidou satellite; after the quantum communication device on the Beidou satellite receives the quantum communication entanglement photon signals transmitted by the ground optical fiber quantum communication network, information recognition is carried out, the communication signals are subjected to high-speed quantum key distribution through the quantum key distribution device, and the communication signalsencrypted by the quantum key are returned to the ground optical fiber quantum communication network; and after the ground optical fiber quantum communication network receives the encrypted communication signals, quantum key decryption is carried out.

Description

technical field [0001] The invention belongs to the field of communication technology, and in particular relates to an information transmission encryption method based on the combination of Beidou satellite and quantum communication technology. Background technique [0002] Quantum communication technology is the product of the combination of quantum mechanics and traditional information science. At present, it mainly uses the quantum characteristics of light in the microscopic world to transmit digital information of "0" and "1" through single photons or entangled photons to achieve high-speed transmission of information. In theory, it can transmit large-capacity information, and can be used to develop codes that cannot be deciphered by classical means. However, due to the attenuation of photons during transmission, it is very difficult to realize long-distance optical fiber quantum secure communication in practical applications. At present, the maximum transmission distanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04B7/185
CPCH04L9/0852H04B7/18517H04L9/0819H04L9/0858H04L9/0863
Inventor 易霄
Owner 有份儿智慧科技股份有限公司
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