Open AccessImage Encryption Using Chaotic Cat Mapping in the Discrete Fourier Transform
Author(s) -
Mohammed A. AlZain
Publication year - 2018
Publication title -
international journal of computer and technology
Language(s) - English
Resource type - Journals
ISSN - 2277-3061
DOI - 10.24297/ijct.v18i0.7907
Subject(s) - encryption , cryptosystem , image (mathematics) , discrete fourier transform (general) , chaotic , fourier transform , algorithm , computer science , inverse , set (abstract data type) , theoretical computer science , mathematics , cryptography , fractional fourier transform , artificial intelligence , fourier analysis , mathematical analysis , geometry , programming language , operating system
The paper presents an secure image using the two dimensional chaotic cat mapping (2D-CCM) in the Discrete Fourier Transform domain (DFT). The ciphering phase begins by applying the DFT on the plainimage to be encrypted and the resulted Fourier transformed image are scrambled using the 2D-CCM and finally an inverse DFT is applied to obtain the final encrypted image. The decryption phase applies a reverse procedure to get the original plainimage. A set of encryption test experiments are employed to inspect the proposed DFT based 2D-CCM image cryptosystem. The experimental results verified and confirmed the superiority of the proposed DFT based 2D-CCM image cryptosystem.