A quantum key distribution system and method

A quantum key distribution and quantum key technology, which is applied in the field of quantum key distribution system, can solve the problems of cost, unrealistic volume, complex deployment environment, etc., and achieve the effect of expanding scope, reducing cost and flexible distribution

Inactive Publication Date: 2018-12-18
STATE GRID INFORMATION & TELECOMM GRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, power distribution terminals have the characteristics of large number, wide distribution, and complex deployment environment. Although quantum keys can provide a more secure protection method for power distribution business information transmission, each power distribution terminal is equipped with a Quantum key generation equipment and laying optical fibers are unrealistic in terms of cost and volume requirements

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  • A quantum key distribution system and method
  • A quantum key distribution system and method
  • A quantum key distribution system and method

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Embodiment Construction

[0042] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0043] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such th...

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Abstract

The invention discloses a quantum key distribution system, which comprises a distribution terminal, a master station service system, a quantum key mobile storage device and a quantum key distributionnetwork. The master station service system applies a quantum key to the quantum key distribution network in response to a quantum key application request of the distribution terminal. The quantum keydistribution network transmits a pair of quantum keys to the first quantum key downloading interface and the second quantum key downloading interface according to the application of the master stationservice system. The master station service system obtains the applied quantum key from the first quantum key downloading interface; The distribution terminal obtains a quantum key corresponding to the quantum key applied by the master station service system from the second quantum key downloading interface through the quantum key mobile storage device. The system can realize the low cost, large-scale and flexible distribution of quantum keys in distribution terminals through mobile storage devices. A quantum key distribution method is also disclosed.

Description

technical field [0001] The present application relates to the field of communication technology, and in particular to a quantum key distribution system and method. Background technique [0002] Both parties in point-to-point communication use quantum keys to encrypt and protect data, which can effectively improve the security of data transmission. The quantum key is a symmetric key, and there are certain difficulties in its specific application process. On the one hand, the quantum key is distributed at both ends of the communication, and a quantum key generation device needs to be deployed at both sides of the communication. The quantum key generation device It is large in size and high in cost, and it is difficult to cooperate with small-size and low-cost terminals; on the other hand, the quantum key generation devices at both ends of the communication need (and must) be directly connected through optical fibers to transmit the bearer key Light quanta of information. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L29/06
CPCH04L9/0819H04L9/0852H04L9/0894H04L63/06H04L63/0876
Inventor 吴庆欧清海李温静冯笑张喆刘柱陈熹杨力帆何尚骏刘玉民杨旭昕孟祥亮林睫菲李锐
Owner STATE GRID INFORMATION & TELECOMM GRP
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