Varun Yarehalli Chandrappa

Work place: Central Queensland University / School of Engineering and Technology, Melbourne-3008, Australia

E-mail: varun.chandrappa@cqumail.com

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Biography

Varun Yarehalli Chandrappa is a research PhD student at Central Queensland University. He has 19 years of industry experience in embedded systems, IoT (Internet of Things), and database server development. Recently, he has been actively involved in a smart irrigation project with the Cairns Regional Council, focusing on the implementation of an efficient irrigation system. Varun's expertise lies in providing technology solutions that are accessible to everyone. He possesses a strong interest in Cyber-Physical Systems, Artificial Intelligence (AI), and project management solutions. Notably, he holds five patents under his name and has published numerous journals and conference papers. Furthermore, Varun is actively engaged in the IEEE Victoria IoT community, where he serves as an event and publication manager.

Author Articles
Encryption Using Binary Key Sequences in Chaotic Cryptosystem

By Vishwas C. G. M. R. Sanjeev Kunte Varun Yarehalli Chandrappa

DOI: https://doi.org/10.5815/ijcnis.2023.04.05, Pub. Date: 8 Aug. 2023

Transmission of images on the network is considered insecure which has security-related issues. In this paper, to provide security to digital images, an encryption system that uses four chaotic maps for binary key sequence generation is proposed. The system consists of stages namely, confusion, generation of random binary chaotic key sequence, pseudo-random number generation (RN), and diffusion. Keys for encryption are chosen randomly based on a pseudo random generator from the selected chaotic maps by the linear feedback shift register (LFSR). The algorithm achieves good results in terms of NPCR, UACI, and entropy values. The developed cryptosystem resists differential attacks, is sensitive to minor alterations in the keys, and has a large key space.

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