A novel Sine–Tangent–Sine chaotic map and dynamic S-box-based video encryption scheme

ABSTRACT

In this work, we propose a novel one-dimensional (1D) Sine–Tangent–Sine (STS) chaotic map. The proposed STS map exhibits a wider, continuous chaotic range, complex behaviour, and random distribution over the entire data range, when tested for bifurcation diagram, Lyapunov exponent and sample entropy parameters. The work also presents a novel video encryption scheme using the STS map. The proposed scheme mainly comprises three phases. In the first phase, the input video is split into frames, and a distinct S-box for each frame is generated using the STS map. In the second step, we perform the frame rotation followed by the shuffling of pixels within the frame. Dynamic diffusion is the final step that changes the value of pixels by selecting one of the chaotic maps, either Chebyshev map or proposed STS map, for each frame. The security analysis proves that the proposed map is resistant to various attacks.

KEYWORDS:

• Chaotic maps
• dynamic diffusion
• video encryption
• S-box
• STS
• Full frame Encryption
• chaos theory
• Chebyshev map

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

Data sharing does not apply to this article as no datasets were generated or analysed during the current study.

Additional information

Notes on contributors

Deepti Dhingra

Deepti Dhingra completed her MTech in Computer Science & Engineering from MMEC, Mullana in 2010, in India. She is a Ph.D. scholar at the National Institute of Technology, Kurukshetra. She is presently working as Assistant Professor in Computer Science and Engineering Department at PIET, Panipat, India. She has more than 16 years of Teaching and Research experience. She is a member of the Institute of Electrical and Electronics Engineers (IEEE). Her research interests include Chaos-based Cryptography and video Encryption.

Mohit Dua

Dr. Mohit Dua received Ph.D. in the area of Automatic Speech Recognition from the National Institute of Technology, Kurukshetra, India in 2018. He is presently working as an Assistant Professor in the Department of Computer Engineering at NIT Kurukshetra, India. He has more than 17 years of Teaching and Research experience. He is a member of the Institute of Electrical and Electronics Engineers (IEEE), and a life member of the Computer Society of India (CSI) and Indian Society for Technical Education (ISTE). His research interests include Speech processing, Chaos based Cryptography, Information Security, Theory of Formal languages, Statistical modeling, and Natural Language Processing. He has published approximately 60 research papers including abroad paper presentations in USA, Canada, Australia, Singapore, Mauritius, and Dubai.