Sound Signal Encryption and Decryption using 2-D Chaotic System for Secure Communication
In this paper, a new 2-D chaotic system is introduced and its equilibrium points are calculated to investigate its
stability. The phase portraits and the chaotic waveforms of the system are obtained and presented using MATLAB Simulink
technique. Later the system is used for sound encryption and decryption in which XOR operation along with chaotic
masking is employed to hide the information sound signal for security and sent in the communication channel. Then the
output of this cryptographic algorithm is analyzed and results are shown. Further, it is observed from the security analysis
results that the system is efficient for sound(audio) encryption and decryption so that it can be used for secure
Keywords - Chaotic System, Signal Processing, Sound Encryption And Decryption, Secure Communication.