A Noise-Tolerant Audio Encryption Framework Designed by the Application of S8 Symmetric Group and Chaotic Systems

Abstract

The recent decade has witnessed an exponential surge of digital content, especially multimedia and its applications. The security requirements of these innovative platforms necessitate the significance of enhancing advanced encryption schemes. In this paper, a novel encryption scheme is presented for real-time audio applications. The framework of the proposed scheme is grounded on the principles of confusion and diffusion. The confusion incorporates nonlinearity by the application of Mordell elliptic curves (MEC) and a symmetric group of permutations S8. The endurance of the proposed scheme is further enriched through the application of chaotic maps. The proposed scheme is intended to cater requirements of real-time voice communications in defense applications particularly warzones. The adoption of a modular design and fusion of chaotic maps makes the algorithm viable for numerous real-time audio applications. The security can further be enriched by incorporating additional rounds and number of S-boxes in the algorithm. The security and resistance of the algorithm against various attacks are gaged through performance evaluation and security measurements. The audio encryption scheme has the ability to tolerate noise triggered by a channel or induced by an invader. The decryption was successful and the resultant output was audible for noisy data. The overall results depict that the proposed audio encryption scheme contains an excellent cryptographic forte with the minimum computational load. These characteristics allow the algorithm to be a hotspot for modern robust applications.

An Audio Encryption Scheme Based on Empirical Mode Decomposition and 2D Cosine Logistic Map

“…In this work, 2DCLM is proposed by combining the Cosine map and the Logistic map. The expressions of the Cosine map and Logistic map are given in Eq (1).…”

“…Ref [1] 99.5835 25.5850 Ref [6] 99.9985 -Ref [7] 100.0000 33.3578 Ref [8] 99.9893 30.3234 Ref [18] 99.9985 33.4000 Ref [26] 99.9494 33.1694 Ref [27] 99.9916 33.2057 Ref [28] 99.9948 35.5483…”

“…Audio data also plays a significant and prevalent role in multimedia systems. In several fields, including confidential voice conferencing, military systems, education, and telephone banking, digital audio communications are seeing a remarkable upswing and importance [1]. The security and resilience of those applications would be greatly influenced by the weaknesses in audio data security, causing a significant impact.…”

The SPN Network for Digital Audio Data Based on Elliptic Curve Over a Finite Field

“…Instead of an invitation link, the encrypted audio file may be utilized in the elearning process to produce an audio password that can be used as login credentials. Besides, Haris Aziz et al [36] developed a noise-tolerance audio encryption scheme by the application of chaotic and symmetric group 𝑆 8 . The proposed design exploits MEC and S8 symmetric group to facilitate military, and real-time audio communication.…”

A Study of Encryption for Multimedia Digital Audio Security

“…The dissemination speed of multimedia information is increasingly accelerated with the development of computer technology [1]. Relying on the Internet, mobile terminals, etc., digital images, video, audio, and other multimedia information is generated and transmitted all the time, which facilitates people's communication and exchange and also brings new challenges to information security.…”