Authors: Ram Chandra Barik; Sitanshu Sekhar Sahu; Suvamoy Changder
Addresses: Department of Computer Science and Engineering, Vikash Institute of Technology, Bargarh, 768028, Odisha, India ' Department of Electronic and Communication Engineering, Birla Institute of Technology, Mesra, 835215, Ranchi, Jharkhand, India ' Department of Computer Science and Engineering, National Institute of Technology, Durgapur, 713209, West Bengal, India
Abstract: This paper proposes a novel encoding technique to encrypt information as visual object embedded in an image. The textures of the objects are made up of lines to form a geometrical shape. The images of the textures are combined to produce an overt cipher host image which appears as a grid structured image. The cipher host image holds the covert information's which are embedded inside those sub-image or grids as an object in a chaotic pattern. The textures of objects for encoding the information is generated then reshuffled and arranged to barred it from eavesdropping. For decryption visual character recognition is being applied using artificial neural network. The reliability of the proposed approach has been illustrated with some empirical examples. The overall cryptography process in a digital image makes it a simple and effective methodology for the secure communication.
Keywords: grid structured; cryptography; texture; visual cryptography; multilayer perceptron; MLP; shuffling pattern; RSA; data encryption standard; DES; advanced encryption standard; AES.
International Journal of Electronic Security and Digital Forensics, 2018 Vol.10 No.2, pp.109 - 137
Received: 05 May 2016
Accepted: 22 May 2017
Published online: 28 Mar 2018 *