Open AccessEfficient image encryption method based on improved Lorenz chaotic system
Author(s) -
Kaur M,
Kumar V
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2017.4426
Subject(s) - pixel , encryption , chaotic , permutation (music) , image (mathematics) , key (lock) , lorenz system , algorithm , computer science , cryptography , position (finance) , mathematics , artificial intelligence , computer vision , computer network , computer security , physics , finance , acoustics , economics
A new image encryption method based on permutation–diffusion architecture is proposed. Permutation and diffusion operations are performed row‐wise and column‐wise on input image. To permute and diffuse the pixels, Lorenz‐like chaotic system with varying bifurcation parameter is used to generate six random sequences. Initially, three sequences help in change the pixel’s position and next three used to diffuse the pixels. The main benefit of this method is that it is more sensitive to input image. Since input parameters required for secure key generation depend upon the input image.