Quantum key distribution method and related equipment in relay coexistence scenario
A quantum key distribution and quantum technology, which is applied in the field of network communication, can solve the problems of QKD network resource optimization difficulties, inability to provide keys for services in real time, complex network environment, etc., so as to alleviate business congestion and improve the utilization rate of key resources , the effect of improving performance
Active Publication Date: 2022-08-05
BEIJING UNIV OF POSTS & TELECOMM
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However, in the real QKD network, key resources are a very scarce resource. With the continuous expansion of the network scale, the continuous growth of the number of users, and the continuous increase of encryption requests, the QKD network will not be able to provide keys for the business in real time. As a result of the request failure, in order to make full use of the resources in the QKD network, it is necessary to optimize the QKD network so that the QKD network can provide quantum keys for more classical services, thereby improving the security protection capability of the entire network
[0004] The co-existence of trusted relay nodes and untrusted relay nodes in real QKD networks makes the network environment more complicated and the optimization of QKD network resources is more difficult
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[0028] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the specific embodiments and the accompanying drawings.
[0029] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of the present disclosure should have the usual meanings understood by those with ordinary skill in the art to which the present disclosure belongs. "First", "second" and similar words used in the embodiments of the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. "Comprises" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things.
[0030] In the long-distance quantum key distribution s...
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The present disclosure provides a quantum key distribution method and related equipment in a relay coexistence scenario, which are used to solve the problem of quantum key distribution network resource optimization in a trusted / untrusted relay coexistence scenario; the first step is to perform quantum key distribution The network topology is abstracted and a quantum key pool is constructed, and then a virtual key pool is constructed between the source and sink nodes for business requests, and the global key is provided in real time for business requests. Finally, it is judged whether there is room for optimization of the business. Then, the virtual key pool is reconstructed for the service request, and then the global key is provided for the service request in real time. It can improve the utilization rate of key resources and achieve the effect of optimizing the quantum key distribution network.
Description
technical field [0001] The present disclosure relates to the technical field of network communication, and in particular, to a quantum key distribution method and related equipment in a relay coexistence scenario. Background technique [0002] In recent years, with the iterative popularization of new technologies such as mobile communication technology, cloud computing technology, 5G, big data, and intelligent Internet of Things, new data services such as mobile Internet and high-definition video transmission have been promoted. On the one hand, the popularization of a new generation of information technology has brought unprecedented demand for data and information interaction, and put forward higher requirements for the information carrying capacity of the entire network; on the other hand, information security has become more and more important, and the new generation of information technology The development of quantum computers, such as the emergence of quantum computer...
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IPC IPC(8): H04W12/0431H04W28/02H04W40/02H04W40/22H04L9/08
CPCH04W28/0289H04W40/02H04W40/22H04L9/0852H04L2209/80
Inventor 郁小松李新阳赵永利李亚杰张会彬张杰
Owner BEIJING UNIV OF POSTS & TELECOMM