Digital chaotic secure communication system

Abstract

The invention discloses a digital chaotic secure communication system. The digital chaotic secure communication system comprises a digital signal generator, a master chaotic system, a signal switcher, a signal encryption device, a first channel, a second channel, a slave chaotic system, a signal decryption device, a first integrator, a second integrator, a discrimination system and a signal display device; the signal switcher modulates digital signals generated by the digital signal generator and master chaotic signals generated by the master chaotic system, the signal encryption device and the signal decryption device encrypt and decrypt modulation signals, the first channel transmits chaotic synchronization signals, the second channel transmits chaotic encrypted signals, and the first and second integrators and the discrimination system demodulate digital modulation signals, and the signal display device displays demodulation signals; and the digital chaotic secure communication system disclosed by the invention solves the problem that the encrypted signals are intercepted and decoded easily during single-channel transmission in general digital chaotic communication practical engineering by utilizing the advantage of high anti-interference ability of digital communication technology, and has better security performance and anti-interference ability.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a digital chaos secure communication system. Background technique [0002] However, with the rapid development of informatization, information security is facing increasingly severe challenges. In recent years, various frequent leakage incidents and monitoring incidents have brought people's attention to information security to an unprecedented level. Chaotic secure communication provides a new secure communication mechanism. Most of the current digital chaos secure communication systems use a single-channel information transmission mechanism. In practical engineering, once the transmission signal is intercepted, the encrypted information will be easy to crack, so how to solve this problem is an important topic in the research field of digital chaos secure communication. Contents of the invention [0003] In view of the above problems, the present invention provides a ...

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Problems solved by technology

[0002] However, with the rapid development of informatization, information security is facing increasingly severe challenges.

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