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A service quality control method and device for quantum key distribution business

A quantum key distribution and service quality control technology, applied in the field of network communication, can solve the problems of QKD service QoS decline, QKD optical network operation efficiency reduction and other problems, to improve the operation efficiency and solve the effect of resource waste.

Active Publication Date: 2020-07-31
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0003] In the QKD optical network based on WDM technology, the QoS of the QKD service is easily affected by the attributes of the optical fiber and the data service attributes carried by the optical fiber. The decline in QoS and the reduction in the operational efficiency of the QKD optical network

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  • A service quality control method and device for quantum key distribution business
  • A service quality control method and device for quantum key distribution business
  • A service quality control method and device for quantum key distribution business

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Embodiment Construction

[0054] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0055] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

[0056] figure 1 A flowchart of a QoS control method for a QKD service provided by an embodiment of the present invention, figure 2 The schematic diagram of the structure of the WDM-based QKD optical network architecture provided by the embodiment of the present inve...

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Abstract

The invention discloses a quality of service control method and device for quantum key distribution (QKD) services. The method can comprise the following steps: determining priorities for the QKD services according to quality of service (QoS) requirements of the QKD services distributed by the quantum keys; determining a QKD protocol and an optical fiber channel for each QKD service according to the sequence of the priorities; in each optical fiber channel, executing the corresponding QKD service based on the QKD protocol of each QKD service according to the sequence of the priorities; and performing QoS control on each QKD service. According to the embodiment of the invention, different QoS control can be provided for different QKD services, the QoS guarantee capability of the QKD services provided by the QKD optical network is improved to a certain extent, and the operation efficiency of the QKD optical network is improved.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a quality of service (Quality of Service, QoS) control method and device for quantum key distribution (Quantum Key Distribution, QKD) services. Background technique [0002] QKD can provide theoretically "unconditionally secure" symmetric keys for both communication parties. Combining QKD with symmetric encryption algorithms can ensure the security of communication between the two parties. Principle” and “quantum non-cloning law” guaranteed by the principle of quantum mechanics. According to different transmission media, QKD can be divided into optical fiber QKD and free space QKD, among which optical fiber QKD can already be deployed in the existing network. Due to the scarcity of dark fiber, that is, fiber resources that have been deployed but not yet used in the existing optical network, and the cost of re-deploying fiber is too high, QKD is deployed in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08H04Q11/00
CPCH04L9/0852H04Q11/0062H04Q2011/0084
Inventor 赵永利曹原郁小松李亚杰张杰
Owner BEIJING UNIV OF POSTS & TELECOMM
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