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Encrypted light transmission method and system based on four-dimensional memristor condition symmetric chaotic system and memristor neural network

A chaotic system and neural network technology, applied in the field of optical transmission, can solve the problems of less consideration of system security and large data volume transmission, and achieve the effect of improving security performance, realizing security protection, and simple XOR function structure.

Pending Publication Date: 2022-06-24
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, most of the studies on OFDM-PON systems use advanced code modulation and high-performance algorithms to improve system transmission capacity and signal transmission quality, but due to the large amount of data transmission, system security is rarely considered

Method used

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  • Encrypted light transmission method and system based on four-dimensional memristor condition symmetric chaotic system and memristor neural network
  • Encrypted light transmission method and system based on four-dimensional memristor condition symmetric chaotic system and memristor neural network
  • Encrypted light transmission method and system based on four-dimensional memristor condition symmetric chaotic system and memristor neural network

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Embodiment 1

[0044] like figure 1 As shown, the present invention provides an encrypted optical transmission method based on a four-dimensional memristive conditional symmetric chaotic system and a memristive neural network, including:

[0045] S1. Obtain the original sequence.

[0046] Get the bit information to be sent and get the original sequence.

[0047] S2. Generate a logistic chaotic sequence through the logistic chaotic model, and use the logistic chaotic sequence to select a chaotic sequence or attractor in the key space library pre-established by the four-dimensional memristive conditional symmetric chaotic system.

[0048] Four groups of chaotic sequences are generated in advance through the four-dimensional memristive conditional symmetric chaotic system, and the initial values ​​of different chaotic sequences are selected to map the symmetric attractors, and the key space library is composed of chaotic sequences and attractors.

[0049] Four groups of chaotic sequences are ...

Embodiment 2

[0098] An encrypted optical transmission system based on a four-dimensional memristive conditional symmetric chaotic system and a memristive neural network provided by an embodiment of the present invention includes:

[0099] Get module: used to get the original sequence;

[0100] Sequence selection module: used to generate a logistic chaotic sequence through the logistic chaotic model, and use the logistic chaotic sequence to select a chaotic sequence or attractor in the key space library;

[0101] Encryption modulation module: used to input the original sequence and the selected chaotic sequence or attractor into the memristive neural network for XOR encryption to obtain encrypted data, modulate the encrypted data and send it to the channel for transmission;

[0102] Decryption and demodulation module: used to demodulate and decrypt the received encrypted data to complete optical transmission.

[0103] Also includes the keyspace library fetch module:

[0104] It is used to...

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Abstract

The invention discloses an encrypted optical transmission method and system based on a four-dimensional memristor condition symmetric chaotic system and a memristor neural network, and belongs to the technical field of optical transmission. The method comprises the following steps: generating a logistic chaos sequence through a logistic chaos model, and selecting a certain chaos sequence or attractor in a key space library pre-established through a four-dimensional memristor condition symmetric chaos system by using the logistic chaos sequence; inputting the original sequence and the selected chaotic sequence or attractor into a memristor neural network for XOR encryption to obtain encrypted data, modulating the encrypted data, and transmitting the modulated encrypted data into a channel for transmission; the received encrypted data are demodulated and decrypted, and optical transmission is completed; multi-layer encryption of data is realized, the security performance of optical transmission is improved, and the defect that the transmission security is less considered in the prior art is overcome; the overall complexity is further reduced, and the method is very suitable for an OFDM-PON scene.

Description

technical field [0001] The invention relates to an encrypted optical transmission method and system based on a four-dimensional memristive conditional symmetric chaotic system and a memristive neural network, and belongs to the technical field of optical transmission. Background technique [0002] Since the invention of optical fiber communication technology in the 1960s, due to its unique characteristics, optical fiber communication technology has become the only communication system that can support global communication, and has developed rapidly; in today's communication network, optical fiber communication has become a must An indispensable part, with people's pursuit of a better life, people's requirements for data services are also getting higher and higher, and higher requirements are put forward for the security of information transmission; however, recent research shows that with the recent In recent years, with the continuous improvement of communication technology...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/00H04B10/85
CPCH04L9/001H04B10/85H04L2209/12
Inventor 刘博忻向军任建新毛雅亚仲庆王瑞春沈磊吴泳锋孙婷婷赵立龙
Owner NANJING UNIV OF INFORMATION SCI & TECH
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