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Multi-user quantum key supply method and device

A technology of quantum key and supply method, applied in the field of communication, can solve the problems of inflexible key supply and low key resource distribution efficiency, and achieve the effect of improving flexible supply, improving distribution efficiency and real-time generation.

Active Publication Date: 2019-08-16
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to propose a multi-user quantum key supply method and device, which solves the problems of inflexible key supply and low efficiency of key resource allocation in the existing QKD access network

Method used

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  • Multi-user quantum key supply method and device

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Embodiment Construction

[0046] 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.

[0047] Such as figure 1 As shown, an Optical Line Terminal (OLT) is a core component in a classic optical access network, and has functions such as service aggregation, service security management, and network configuration management. As the types of services required by the user increase, it needs to perform operations such as control and management on the optical network unit (Optical Network Unit, ONU) at the user end. The OLT aggregates user request information from ONUs, forwards these requests to the upper-level network, and broadcasts the obtained data information to all ONUs, thereby realizing data control between the OLT and users.

[0048] figure 2 It is a schematic diagram of the QKD equipment deployment sc...

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Abstract

The invention discloses a multi-user quantum key supply method and device based on an optical line terminal. The method comprises the following steps of generating a key supply queue according to a received key request; generating a key according to the key supply queue; and storing the key in a key pool set by each user side to supply the key. Therefore, according to the scheme of the invention,the key queue can be generated according to the collected key request, the key is generated, and the time slot resource of the equipment in the integrated QKD access network is efficiently matched with the user key demand, so that the flexible supply of the multi-user key resources in the integrated QKD access network is improved, and the key resource distribution efficiency is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a multi-user quantum key supply method and device. Background technique [0002] The access network directly provides users with various data services through connection with the metropolitan area and the backbone network. With the development of network technology, user communication information becomes more and more sensitive, and business security requirements continue to increase. Quantum Key Distribution (Quantum Key Distribution, QKD) technology can provide theoretically absolutely secure key resources for user security needs, and some solutions for integrating QKD in optical access networks have also been formed. [0003] At present, the access network manages and controls the services required by users through Optical Line Terminals (OLTs), but its unique process of gathering user requests and broadcasting data information faces serious security threats. QKD can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08
CPCH04L9/0852H04L9/0822H04L9/083H04L9/0891H04L9/3073
Inventor 赵永利王华郁小松李亚杰张杰
Owner BEIJING UNIV OF POSTS & TELECOMM
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