Multimed Tools Appl (2018) 77:31177–31198 https://doi.org/10.1007/s11042-018-6214-z A chaotic permutation and diffusion based image encryption algorithm for secure communications 1 1 Bhaskar Mondal · Prabhakar Kumar · Shrey Singh Received: 11 July 2017 / Revised: 22 May 2018 / Accepted: 24 May 2018 / Published online: 5 June 2018 © Springer Science+Business Media, LLC, part of Springer Nature 2018 Abstract In this digital era, a huge amount of digital data is being generated, transmitted, and stored over the network. Images are widely searched, shared and uploaded which make them more vulnerable to the attackers. Therefore, image encryption has become the most widespread form of secure image communication. In recent past, a range of chaotic encryp- tion schemes have been proposed for image encryption which suffers from low key space and high computational overhead. In this paper, the authors have proposed a secure image encryption technique based on 2D Baker’s map. In the proposed scheme a plain image is permuted first, based on a sequence of pseudo random number generated by 2D Baker’s map followed by diffusion process based on XORing. The strength of the proposed scheme is analyzed using the most well-known security test measures like NPCR, MSE, PSNR, UACI,
Multimedia Tools and Applications – Springer Journals
Published: Jun 5, 2018
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