A new Audio Encryption Algorithm Based on Hyper-Chaotic System

Abstract

  a new algorithm for audio encryption is presented in this work, the simple structure chaotic logistic map based to perform permutation mechanism where the position of the audio samples are rearrangement again with the purpose of break correlation, lately based on key stream generated from complex hyper-chaotic system diffusion operation is done with the aim of fill silent periods within the speech conversation to ambiguity the critical information and successful encryption operation.

to ensure the security and efficiency of proposed method many quality metrics analysis are done such as histogram, waveform, entropy, key space, correlation coefficient, differential and speed performance, the experimental results demonstrate that the proposed algorithm characteristics with high level of security, resistant attacks and can realize the real time.