A Lightweight Image Encryption Scheme Using Hyperchaotic Map and Collision-Parity Principle

An innovative lightweight image encryption scheme with superior security performance has been developed. Initially, we construct a 3-D simple memristive hyperchaotic map (3-D-SMHM) that exhibits remarkable hyperchaotic characteristics within a simple structure. Through comprehensive analysis of its performance metrics, the map reveals excellent unpredictability and ergodicity, providing a solid foundation for encryption applications. Utilizing the 3-D-SMHM, we introduce a novel colliding parity lightweight image encryption scheme (CPL-IES), which uniquely integrates a scrambling mechanism based on the collision principle with a diffusion strategy relying on parity. After comprehensive verification through seven experiments, CPL-IES demonstrates outstanding performance in terms of efficiency, robustness, and security, making it suitable for application in resource-constrained devices but stringent security requirements.