Image encryption using 2D Logistic adjusted Sine map
With complex properties of ergodicity, unpredictability and sensitivity to initial states, chaotic systems are widely used in cryptography. This paper proposes a two dimensional Logistic adjusted Sine map (2D LASM) Performance evaluations show that it has better ergodicity and unpredictability, and a wider chaotic range than many existing chaotic maps. Using the proposed map, this paper further designs a 2D LASM based image encryption scheme (LAS IES) The principle of diffusion and confusion are strictly fulfilled, and a mechanism of adding random values to plain image is designed to enhance the security level of cipher image. Simulation results and security analysis show that LAS IES can efficiently encrypt different kinds of images into random like ones that have strong ability of resisting various security attacks.
Inf. Sci.