Hybrid Data Security Solutions Using Combined Encryption and Steganography in Communication Systems

Images, audio, and text files can be steganographically encrypted to conceal secret data. Using the classical logistic chaotic system, this study aims to improve the chaotic behaviour for secure voice encryption. Compared to existing chaotic maps in 1D and 2D, the new approach achieves a broader chaotic range, greater predictability, and improved ergodicity. The paper presents a method for encrypting images using the Henon, Baker, and Arnold maps. ISTFT embeds the encrypted image into the high-frequency harmonics of an audio signal. Analyzing and comparing a sample image to the performance metrics of MSE, PSNR, and SSIM showed that this method had high-performance results.