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Router-based local area network terminal quantum communication method and system

A quantum communication and router technology, applied in the field of quantum communication, can solve problems such as terminal communication security cannot be guaranteed, and achieve the effect of improving communication security and low cost

Active Publication Date: 2020-11-13
南京如般量子科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In home and company scenarios, many communication terminals are connected to the Internet through routers, such as notebooks, mobile phones, etc. These terminals are often not integrated with QKD devices, so the communication security of these terminals cannot be guaranteed

Method used

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  • Router-based local area network terminal quantum communication method and system
  • Router-based local area network terminal quantum communication method and system
  • Router-based local area network terminal quantum communication method and system

Examples

Experimental program
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Effect test

Embodiment 1

[0049] This example proposes as figure 1 The shown router-based LAN terminal quantum communication system mainly includes: router A1, router A2, terminal B1, and terminal B2; router A1 forms the first local area network, and terminal B1 is a terminal in the first local area network; router A2 forms the second local area network , the terminal B2 is a terminal in the second local area network. Both the terminal B1 and the terminal B2 are equipped with true random number generators. Router A1 and router A2 include the main functional modules of the existing routers, and also need to contain a single-photon emission module and a single-photon detection module. The single-photon emission module can modulate the polarization state of photons according to the control signal, and send the modulated photon string The single photon detection module can detect the polarization state of the received photon under the measurement basis, and can send the detected single photon polarization...

Embodiment 2

[0058] This example proposes as figure 2 The router-based LAN terminal quantum communication system mainly includes: router A1, router A2, terminal B1, terminal B2, and several quantum repeaters; router A1 forms a first local area network, and terminal B1 is a terminal in the first local area network; Router A2 forms a second local area network, and terminal B2 is a terminal in the second local area network. Both the terminal B1 and the terminal B2 are equipped with true random number generators. Router A1 and router A2 include the main functional modules of the existing routers, and also need to contain a single-photon emission module and a single-photon detection module. The single-photon emission module can modulate the polarization state of photons according to the control signal, and send the modulated photon string The single photon detection module can detect the polarization state of the received photon under the measurement basis, and can send the detected single ph...

Embodiment 3

[0067] This example proposes as image 3 The shown router-based LAN terminal quantum communication system mainly includes: router A1, router A2, terminal B1, terminal B2, several trusted repeaters configured with QKD devices; router A1 forms the first local area network, and terminal B1 is the first A terminal in the local area network; the router A2 forms a second local area network, and the terminal B2 is a terminal in the second local area network. Both the terminal B1 and the terminal B2 are equipped with true random number generators. Router A1 and router A2 include the main functional modules of the existing routers, and also need to contain a single-photon emission module and a single-photon detection module. The single-photon emission module can modulate the polarization state of photons according to the control signal, and send the modulated photon string The single photon detection module can detect the polarization state of the received photon under the measurement...

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Abstract

The invention provides a router-based local area network terminal quantum communication method and system. According to the invention, the router is used as a relay of the terminal, so that two terminals which are located in different local area networks and are not provided with quantum key distribution equipment can realize BB84-based quantum communication through the router, and the communication security between mobile terminals such as mobile phones in the local area networks is greatly improved.

Description

technical field [0001] The invention relates to the field of quantum communication, in particular to a router-based quantum communication method and system for a local area network terminal. Background technique [0002] In modern society, people rely more and more on information, and the safe transmission and storage of information is becoming more and more important. Encryption is an effective means to ensure information security. However, with the birth of quantum computers and other computers expected to have super-computing capabilities, existing public-key cryptosystems such as RSA will become vulnerable, and people's information security will face greater threats. [0003] Quantum key distribution (QKD) is based on the basic principles of quantum mechanics. The quantum key it transmits cannot be cracked and has unconditional security. Its security is much higher than that of RSA and other cryptographic systems based on difficult problems in number theory. [0004] Ho...

Claims

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Application Information

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IPC IPC(8): H04B10/70H04B10/29H04L9/08
CPCH04B10/70H04B10/29H04L9/0858
Inventor 富尧钟一民王泽军
Owner 南京如般量子科技有限公司
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