Image encryption techniques: A comprehensive review

This paper presents an exhaustive review of research within the field of image encryption techniques. It commences with a general introduction to image encryption, providing an overview of the fundamentals. Subsequently, it explores a comprehensive exploration of chaos-based image encryption, encompassing various methods and approaches within this domain. These methods include full encryption techniques as well as selective encryption strategies, offering insights into their principles and applications. The authors place significant emphasis on surveying prior research contributions, shedding light on noteworthy developments within the field. Additionally, the paper addresses emerging challenges and issues that have arisen as a consequence of these advancements

A Novel Chaotic Generator Based On Weakly-coupled Discrete Skewtent Maps

International audienceIn this paper, we propose a novel pseudo chaoticrandom number generator based on three weakly-coupled discreteSkew tent maps. Its implementation was performed withC language and finite precision N=32, including a chaoticmultiplexing technique. We show that our approach permits toavoid dynamic degradation caused by finite precision in one hand,and to allow emergence from chaos toward randomness in theother hand. As a consequence, the proposed generator turnsout to be secure against famous cryptographic and statisticalattacks. Several statistical tests such as correlation, histogram,chi2 and NIST have been applied on the generated sequences.They confirm the robustness of this chaotic generator