Method for applying chaotic synchronization self keeping property in secret communication

Abstract

Since chaos synchronization system possesses self-hold characteristic, the invention uses the principle of time-sharing sending by using the said characteristic, i.e., in time-sharing mode, cryptograph signal and chaos synchronization signal are sent out. As long as time for sending cryptograph signal is smaller than self-hold time of chaos synchronization system, chaos synchronization control signal is sent out in succession. Thus, it is guaranteed that reliable information transmission is accomplished under condition that chaos system keeps synchronization.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to an application method of the chaotic synchronous self-maintaining characteristic in secure communication. Background technique [0002] The research on chaotic secure communication originated in the early 1990s in the world, and has gone through more than ten years. Due to the unpredictable characteristics of chaotic signal itself, chaotic secure communication has a very high degree of confidentiality. It has become one of the hot spots of attention and research in the field of information science. At present, many achievements have been made in the research of chaos control and synchronization methods, and some developments have been made in chaos secure communication. However, it has not been practically applied in the field of chaos communication. First of all, whether the chaotic secure communication system works normally and effectively depends on whether there is a go...

AI Technical Summary

Problems solved by technology

At present, many achievements have been made in the research of chaos control and synchronization methods, and the chaos secure communication has also developed to a certain extent, but it has not been practically applied in the field of chaos communication.

First of all, whether the chaotic secure communication system works normally and effectively depends on whether there is a good synchronization system. A good synchronization system requires an accurate chaotic synchronization control signal. Since the chaotic synchronization control signal is a wide-spectrum signal similar to white noise, the use of chaotic The encrypted ciphertext information is also a signal similar to white noise, so one of the key issues is how to transmit the chaotic synchronization control signal and the ciphertext signal in the same channel at the same time. This problem has always restricted the practical application of chaotic secure communication.

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