A seven-dimensional hyperchaotic masking and security communication circuit based on drive-response synchronization

Abstract

The invention discloses a seven-dimensional ultra-chaotic cover-secret communication circuit based on drive-response synchronization, including a complex signal generator, a drive circuit, a response circuit, an encryption circuit, a decryption circuit, an inverter, and an output terminal of the complex signal generator Connected to the first input end of the encryption circuit, the first output end of the driving circuit is connected to the input end of the inverter and the first input end of the response circuit, and the second output end of the driving circuit is connected to the second input end of the encryption circuit , the output end of the inverter is connected with the second input end of the response circuit, the output end of the response circuit is connected with the second input end of the decryption circuit, the output end of the encryption circuit is connected with the first input end of the decryption circuit, the encryption circuit The output end outputs the encrypted signal, and the output end of the decryption circuit outputs the decrypted signal. The invention is a high-dimensional ultra-chaotic secure communication circuit with more complex features, which can enhance the security of digital audio encryption based on chaos.

Description

technical field [0001] The invention relates to the field of communication, in particular to a seven-dimensional ultra-chaotic masking and security communication circuit based on drive-response synchronization. Background technique [0002] Due to the sensitivity of chaos to initial conditions, even if two identical chaotic systems evolve from almost the same initial conditions, their trajectories quickly become uncorrelated after a period of time, which makes the chaotic signal It has the ability of long-term unpredictability and anti-interception; at the same time, the chaotic system itself is deterministic, which is completely determined by the equations, parameters and initial conditions of the nonlinear system, so the chaotic signal is easy to generate and replicate. The high randomness, unpredictability, high complexity, broadband characteristics and system equations, parameters and initial conditions of the chaotic signal, as well as its ease of implementation, make i...

AI Technical Summary

Problems solved by technology

There are software loopholes in traditional modern secure communication, even the largest random number is periodic, or it is very time-consuming and requires high cost

However, most of the existing chaotic secure communications use low-dimensional chaotic systems, whose chaotic signal band is very narrow, which is easily separated by digital filters and loses the encryption protection function.

Images