Optical secret communication system based on chaotic random key distribution

A technology for secure communication and key distribution, which is applied in the field of optical secure communication systems, can solve the problem of low confidentiality of secure communication technology, and achieve the effect of ensuring communication confidentiality and improving confidentiality

Active Publication Date: 2020-06-05
GUANGDONG UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0004] The present invention provides an optical security communication system based on chaotic random key distributi

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  • Optical secret communication system based on chaotic random key distribution
  • Optical secret communication system based on chaotic random key distribution
  • Optical secret communication system based on chaotic random key distribution

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Embodiment Construction

[0022] The accompanying drawings are for illustrative purposes only and cannot be construed as limiting the patent;

[0023] In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0024] For those skilled in the art, it is understandable that some well-known structures and descriptions thereof may be omitted in the drawings.

[0025]The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] This embodiment proposes an optical security communication system based on chaotic random key distribution, such as Figure 1~3 Shown is a schematic structural diagram of an optical secure communication system based on chaotic random key distribution in this embodiment.

[0027] The optical secure communication system based on chaotic random key distribution proposed in this embodiment ...

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Abstract

The invention provides an optical secret communication system based on chaotic random key distribution. A chaotic synchronization key distribution module in a sending end extracts a true random key from a chaotic signal and uses the true random key to drive an optical coding secret communication module to work, the optical coding secret communication module performs optical coding on secret data to be transmitted and converts the secret data into a secret communication signal, and a wavelength division multiplexer multiplexes the chaotic signal and the secret communication signal and sends themultiplexed signals to a receiving end through a transmission optical fiber; and a wavelength division multiplexing demultiplexer in the receiving end demultiplexes the received multiplexed signals to obtain a chaotic signal and a secret communication signal, a chaotic synchronization key receiving module adjusts the parameters to make the parameters matched with the parameters corresponding to the sending end, chaos synchronization of the receiving end and the sending end is achieved, a true random key is obtained and used for driving an optical decoding secret communication module to work,and the optical decoding secret communication module decodes received time domain type random noise signals to obtain original secret data.

Description

technical field [0001] The present invention relates to the technical field of optical communication, and more specifically relates to an optical security communication system based on chaotic random key distribution. Background technique [0002] Quantum secure communication, chaotic secure communication, and optical codec-based secure communication technologies are current state-of-the-art secure optical communication technologies. With the continuous demand for bandwidth, people hope to transmit confidential information at a higher speed, but there are still some technical problems to be solved in the realization of high-speed security in quantum secure communication and chaotic secure communication. [0003] The secure communication technology based on optical coding and decoding can realize high-speed (≥10Gb / s) and long-distance secure transmission of information by encoding and decoding optical signals on the physical layer. Optical codec security communication techno...

Claims

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Application Information

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IPC IPC(8): H04L9/00H04L9/08H04B10/25H04B10/2513H04B10/50H04B10/54H04B10/556
CPCH04L9/001H04L9/0869H04L9/0819H04B10/503H04B10/5561H04B10/541H04B10/25133
Inventor 高震森李启华安跃华王云才秦玉文
Owner GUANGDONG UNIV OF TECH
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