Image encryption under spatial domain based on modify 2D LSCM chaotic map via dynamic substitution-permutation network

Image encryption has become an important application aspect of information security. Most attempts are focused on increasing the security aspect, quality resulting image, and time consumed. On other hand, dealing with color image under spatial domain in this filed is considered as another challenge added to proposed method that make it sensitivity difficulty. The aims encode a by main components red (R), green (G), blue (B) strengthen dependence each component modifying two dimensional logistic- sine coupling map (2D- LSCM). This satisfy statistical features reduce time-consumption, benefit from mixing step second advanced standard (AES) candidates (serpent block cipher) modified achieve addition confusion diffusion processes. experimental results showed our had ability resist against attacks differential attacks. It also uniform histogram, large key space, complex faster, closer Shannon entropy 8, low correlation values between adjacent pixels compared methods.