Securing Digital Image using Chaotic Encryption Scheme
Aderonke J. Ikuomola · Advances in Multidisciplinary & Scientific Research Journal Publication · 2019
Encryption of images is different from that of texts due to some basic features of images such as bulk data capacity and high redundancy, which are generally difficult to handle by traditional means.Most of the available ciphers cannot be used directly to encrypt digital images in real-time systems because their encryption speed is not fast.In this paper, a chaotic image encryption schemes which uses a two-dimensional discretized Arnold's cat map was used for pixel permutation and a logistic map which is a one-dimensional chaotic map was used for key stream generator where the control parameter b is used as part of the secret key.The work was implemented using Microsoft Visual Basic 2008.The result shows an encrypted image which is decrypted by inverse of the map and the use of the secret keys.The chaotic system employed shows its simplicity in form and complexity in dynamics.