Unique Video Encryption Technique Intended for Smart City Application

AbstractThe internet has become an integral part of our modern life, and the protection of secret data over the internet of multimedia things is the fundamental concern for Smart City applications. Nowadays, the widely used internet of things (IoT) uses audio, image, video, and various mixed modes as well, where privacy, as well as security, are equally essential in real-time transmission. Substantial research has been reported on various encryption algorithms for text and image files, but a similar need for video encryption has been felt a little late. It may be noted that the absence of any standard encryption technique designed especially for any video file has compelled us to design a new but quite robust encryption algorithm for video input as secret. This article has primarily addressed the security needs for video content in IoT. Any video file can be considered as a collection of continuous images. In this research article, we have dealt with video encryption, fundamentally a multi-round key-based shuffling of a collection of images, components of the original video file to be encrypted. The proposed novel scheme follows the fundamental concept of the symmetric encryption technique, where the encryption key is common for both encryption and decryption in real-time video applications.Keywords: Symmetric cryptographyvideo encryptioninternet of thingssecure hash algorithm (SHA)block shufflingtranspose cipher Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationNotes on contributorsHari Narayan KhanHari Narayan Khan is currently working as the head and associate professor in the Department of Computer Science and Engineering, Techno Engineering College Banipur, West Bengal, India under Maulana Abul Kalam Azad University of Technology, Kolkata, India. He received his PhD and MTech from Jadavpur University, India, and BTech from ITME under WBUT, Kolkata, India. His research interests include cryptography, network security, information sharing, steganography, watermarking, IoT and information security. E-mail: hnkhan1984@gmail.comAbhishek DasAbhishek Das is currently working as an associate professor in the Department of Computer Science and Engineering at Aliah University, Kolkata. He has over 18 years of teaching, research as an ex- reader at Indian Institute of Space Sc. & Technology (IIST), ex-asst professor at Tripura University (Central Univ.) and ex- Lecturer at IIEST Shibpur. He also worked at AICTE (Under MHRD) as Asst. Director and Regional Officer. He also has a PostDoc from University of West Scotland, U.K. He received his PhD from JadavpurUniversity, India,MS fromKansas State University, USA, and BTech from Kalyani University, India. He has also published eight patents and one copyright. His research area is in medical image processing, machine learning, IoT, information security etc. Corresponding author. E-mail: adas@aliah.ac.inAtal ChaudhuriAtal Chaudhuri received his BE, ME, and PhD from Jadavpur University, West Bengal, India. He has been working in the Department of Computer Science and Engineering, Jadavpur University, West Bengal, India, for more than 30 years. In between, he also served as Vice-Chancellor for Veer Surendra Sai University of Technology (VSSUT), a stand-alone technical state university in Odisha, India. His current research interests include embedded systems, cryptography, information sharing, steganography, watermarking, and data mining. E-mail: atalc23@gmail.com