Audio signal encryption using chaotic H\'enon map and lifting wavelet transforms

TL;DR

This paper introduces a novel audio encryption method combining chaotic Hénon map and lifting wavelet transforms, enhancing security through dynamic keys and comprehensive statistical testing.

Contribution

It presents a new audio encryption scheme integrating chaotic maps with wavelet transforms, offering improved security features and resistance to cryptographic attacks.

Findings

Large key space enhances security against attacks

Statistical tests confirm the scheme's robustness

Wavelet transform improves encryption efficiency

Abstract

We propose a new audio signal encryption scheme based on the chaotic H\'enon map. The scheme mainly comprises two phases: one is the preprocessing stage where the audio signal is transformed into a data by the lifting wavelet scheme and the other in which the transformed data is encrypted by chaotic data set and hyperbolic functions. Furthermore, we use dynamic keys and consider the key space size to be large enough to resist any kind of cryptographic attacks. A statistical investigation is also made to test the security and the efficiency of the proposed scheme.