Physical layer key extraction method, system and device, equipment and computer medium

A technology of key extraction and physical layer, which is applied in the field of physical layer key extraction, can solve the problems of low key extraction efficiency, high cost overhead, and high resource consumption, so as to increase the effective channel detection value, improve efficiency, and reduce deployment costs. low effect

Pending Publication Date: 2022-02-11
NAT UNIV OF DEFENSE TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, key extraction can be performed based on beamforming, relay forwarding, etc., but the cost is

Method used

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  • Physical layer key extraction method, system and device, equipment and computer medium
  • Physical layer key extraction method, system and device, equipment and computer medium
  • Physical layer key extraction method, system and device, equipment and computer medium

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Embodiment Construction

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the 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.

[0056] see figure 1 , figure 1 It is a first flowchart of a method for extracting a physical layer key provided in the embodiment of this application.

[0057] A method for extracting a physical layer key provided in an embodiment of the present application may include the following steps:

[0058] Step S101: Determine the channel information between the target antenna node and each receiver.

[0059] In practical applications, the channel information between the target antenna n...

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Abstract

The invention discloses a physical layer key extraction method, system, device, equipment and a computer storage medium. The method comprises the steps of: determining channel information between a target antenna node and each receiver; randomly generating intelligent reflecting surface parameters of which the number is equal to that of receivers; based on the intelligent reflecting surface parameters and the channel information, pairing the intelligent reflecting surface parameters and the receivers one by one, obtaining a target pairing result; and based on the target pairing result, carrying out key extraction between the target antenna node and the receivers. The channel environment during key extraction is improved on the basis of the intelligent reflecting surfaces, so that the deployment cost is low; a static channel is artificially disturbed by using the random change of the intelligent reflecting surfaces, so that the correlation among multiple user channels is effectively eliminated while the channel time-varying property is increased, an effective channel detection value in the key extraction process can be increased, and the key extraction efficiency is improved; and the robustness is high. With the physical layer key extraction system and device and the computer medium adopted, corresponding technical problems can be solved.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and more specifically, relates to a physical layer key extraction method, system, device, device and computer medium. Background technique [0002] With the advent of the information age, wireless communication technology has developed rapidly, especially the popularization of technology applications such as the Internet of Things (IOT) and the fifth generation mobile communication (5G). Wireless communication networks have changed every aspect of people's lives. However, the inherent openness of electromagnetic space makes wireless communication inherently vulnerable, which makes it very easy for the enemy to attack it. Wireless communication security issues have been widely concerned, and physical layer key extraction technology is a key security technology in the field of wireless communication security. The public channel between legal communication parties can be us...

Claims

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Application Information

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IPC IPC(8): H04W12/041H04W12/0433
CPCH04W12/041H04W12/0433
Inventor 魏急波熊俊张晓瀛高玉威马东堂郭登科曹阔赵海涛黄圣春
Owner NAT UNIV OF DEFENSE TECH
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