Method for conducting quantum secret key distribution on passive optical network and passive optical network

A technology of quantum key distribution and passive optical network, which is applied in the field of communication, can solve the problems of being breached, security risks, and vulnerability to external attacks, etc., and achieves the effects of ensuring absolute security, improving reliability, and simple structure

Inactive Publication Date: 2013-04-03
ANHUI QASKY QUANTUM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the key used in the traditional passive optical network is the Internet Information Exchange (IKE) scheme. The key used is calculated after information exchange on the traditional network. The traditional network key exchange process is very easy. Being attacked by the outside world, there is a great risk in security; in addition, the IKE system is based on the computational complexity, and this computational complexity cannot be theoretically proven to be absolutely safe and reliable. , there is the possibility of being broken, so there is a great security risk

Method used

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  • Method for conducting quantum secret key distribution on passive optical network and passive optical network
  • Method for conducting quantum secret key distribution on passive optical network and passive optical network
  • Method for conducting quantum secret key distribution on passive optical network and passive optical network

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Embodiment 1

[0023] see figure 2 , image 3 , Figure 4 and Figure 5 , the method for implementing quantum key distribution on a passive optical network, wherein the optical line terminal and the optical network terminal are connected through an optical distribution network; the optical line terminal and / or the optical network terminal need to be in the The communication data transmitted on the passive optical network is encrypted and decrypted; the quantum key is distributed by the quantum key distribution device.

[0024] As a preferred solution, the optical line terminal corresponds to a quantum key distribution device, and the quantum key distribution device is respectively connected to the optical line terminal and the optical distribution network through optical fibers to establish an optical line quantum key reading channel. The line terminal obtains the quantum key through the optical line quantum key reading channel; each optical network terminal corresponds to a quantum key ...

Embodiment 2

[0042] see figure 2 , image 3 , Figure 4 and Figure 5, the passive optical network includes an optical line terminal and an optical network terminal; an optical distribution network is connected between the optical line terminal and the optical network terminal; it also includes a device for distributing quantum keys to the optical line terminal and / or the optical network terminal Quantum key distribution device; the optical line terminal corresponds to a quantum key distribution device, and the quantum key distribution device is respectively connected to the optical distribution network and the optical line terminal through an optical fiber to form an optical line quantum key reading channel, and the optical line The terminal obtains the quantum key through the quantum key reading channel of the optical line and encrypts and decrypts the communication data that needs to be transmitted on the passive optical network through the obtained quantum cryptography; each optical...

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Abstract

The invention discloses a method for conducting quantum secret key distribution on a passive optical network. An optical line terminal and/or an optical network terminal encrypt and decipher communication data needing transmitting on the passive optical network through a quantum secret key; and the quantum secret key is distributed through a quantum secret key distribution device. The invention further discloses the passive optical network, and a light distribution network is connected between the optical line terminal and the optical network terminal, the optical line terminal corresponds to one quantum secret key distribution device, and the optical line terminal is encrypted and deciphered through a quantum cryptography communication data. Each optical network terminal respectively corresponds to one quantum secret key distribution device, and the optical network terminal encrypts and deciphers the communication data through quantum cryptographies. The method depends on quantum mechanical properties, a quantum secret key transmitting procedure cannot be broken through, outside attacks can be easy to find, and the quantum secret key encrypts the data, achieves an encryption mode of one encryption once and guarantees absolute security of the data.

Description

technical field [0001] The invention relates to a method for distributing quantum keys on a passive optical network in the communication field, in particular to a method for implementing quantum key distribution on a passive optical network and the passive optical network. Background technique [0002] Passive Optical Network (PON) consists of an Optical Line Terminal (OLT) at the central office and an Optical Network Unit (ONU) and / or Optical Network Terminal (Optical Network Terminal) at the far end. , ONT) and is connected by an Optical Distribution Network (ODN) to form a point-to-multipoint network. The OLT is located at the root node and is connected to each ONU / ONT through the ODN. PON technology began in the early 1980s. The PON products currently on the market are mainly divided into ATM PON / Broadband PON (APON / BPON), Ethernet PON (EPON) and Gigabit PON (GPON) according to the technology adopted. kind. With the deployment of a passive optical network (Passive Opt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/85H04L9/08
Inventor 李大伟苗春华
Owner ANHUI QASKY QUANTUM SCI & TECH CO LTD
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