Transmission method based on fiber channel real-time physical state and dna coding technology

Abstract

The invention discloses a transmission method based on the real-time physical state of the optical fiber channel and DNA coding technology. A reverse link is added on the basis of the optical fiber transmission link to perform two-way real-time monitoring, and it is judged according to the received signal change whether it occurs In order to eliminate the phenomenon of eavesdropping, the legitimate two parties adjust the signal encryption method in real time based on the four physical state information monitored in real time by the channel to form a Link sequence. However, the eavesdropping party cannot know whether the encryption method has changed and how, so it cannot correctly restore the original signal. This method realizes the security of signal transmission without changing the format of the original transmission link, without considering the security of the encryption key, and without increasing the complexity of signal encryption, and can achieve effective resistance to eavesdropper attacks. The signal in the link is not limited by the encryption method, rate, and bandwidth, and does not require strict synchronization of system hardware to ensure the security of signal transmission and greatly reduce the complexity of encryption algorithms and signal transmission.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a cooperative safe transmission method based on a real-time physical state of an optical fiber channel and a DNA coding technology. Background technique [0002] Optical communication network is the bottom carrier of the entire communication network, and optical fiber is widely used due to its advantages of insulation and sealing and strong anti-electromagnetic interference ability. Almost 97% of the world's communications are carried by optical fiber, which is an important part of information construction. infrastructure. Optical fiber was once considered to have great security, but in recent years, incidents of various attacks on optical networks have been continuously reported: US nuclear submarines have entered the sea to eavesdrop on optical cables, and in the Prism Gate incident exposed by Snowden, network companies have stolen users' data. Data, man-made des...

AI Technical Summary

Problems solved by technology

The transmission link of this scheme is divided into two modes. The key problem is that the purpose of simultaneous communication and monitoring cannot be achieved, so the utilization rate of the channel is not high, and the practicability is not strong, and it does not give any information about the transmission process after being attacked. processing methods, lack of follow-up effective processing methods

[0012] In summary, the current existing solutions share the following problems: secure key transmission, strict synchronization of system hardware, limitation of transmission rate, post-processing of monitoring attacks, effective use of monitoring results, etc.

Therefore, even if the transmitted information has been encrypted, when the legal sender notifies the legal receiver of its encryption key and method, the key information still has the risk of being eavesdropped, so the eavesdropper may simultaneously master the encrypted information and Encryption can restore information to a great extent, and the risk of information being eavesdropped has been difficult to eliminate

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