Quantum encryption service transmission method in multi-domain scene and related equipment

A business transmission and quantum encryption technology, applied in transmission systems, digital transmission systems, and key distribution, can solve the problems of low utilization efficiency of key resources in the key pool and long time consumption, and achieve the effect of shortening the transmission time of business encryption.

Active Publication Date: 2021-06-04
BEIJING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

At present, a lot of research has been done on the construction of key pools in the domain, which can meet the business security encryption in the domain, but the key construction of the key pool takes a long time and the key resource utilization efficiency of the key pool is low. At the same time, in comparison In the real scene, there is no related work research on the inter-domain key pool

Method used

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  • Quantum encryption service transmission method in multi-domain scene and related equipment
  • Quantum encryption service transmission method in multi-domain scene and related equipment
  • Quantum encryption service transmission method in multi-domain scene and related equipment

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Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0031] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items.

[0032] As mentioned in the background technology, at present, a lot of research has been done on the construction of key pools in the domain, which can meet the business security encryption in the domain, but the key construction of the ...

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Abstract

The invention provides a quantum encryption service transmission method in a multi-domain scene and related equipment. The method comprises the following steps: determining that a source node and a destination node are not in the same domain in response to information of the source node and the destination node carried in a received service transmission request, selecting a cross-domain link from the source node to the destination node based on first node network topology information in a first domain where the source node is located, second node network topology information in a second domain where the destination node is located and inter-domain virtual network topology information between the first domain and the second domain; retrieving a first quantum key resource corresponding to the cross-domain link from a pre-constructed global quantum key pool; and performing encrypted transmission of the service indicated by the service transmission request through the cross-domain link by using the first quantum key resource. According to the method, inter-domain service encryption transmission can be realized, and the independence and security of key resources among different domains are improved.

Description

technical field [0001] One or more embodiments of the present disclosure relate to the field of quantum communication, and in particular to a quantum encryption service transmission method and related equipment in a multi-domain scenario. Background technique [0002] With the rapid development of quantum computers, the traditional network security architecture will be seriously threatened. Quantum key distribution technology has gradually made breakthroughs in theory and system, and point-to-point quantum key distribution technology has matured. Quantum key distribution is based on the principles of quantum physics (eg, Heisenberg's uncertainty principle, quantum non-cloning law), which theoretically guarantees its unconditional security. [0003] Quantum key distribution (quantum key distribution, QKD), is to use the characteristics of quantum mechanics to ensure communication security. It enables communicating parties to generate and share a random, secure key to encryp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L29/06
CPCH04L9/0852H04L9/0819H04L63/0428
Inventor 郁小松王清平赵永利张杰
Owner BEIJING UNIV OF POSTS & TELECOMM
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