A Comparative Evaluation of Lightweight Cryptographic Algorithms for Secure Data Transmission in IoT Network

Internet of Things (IoT), in a blend with advanced computer vision techniques, models new challenges for end users in securing images and videos. Securing images becomes one of the crucial aspects in the enormous and growing domain of digital transfer. One of the well-known methods for preserving the privacy of photos on an unconstrained public medium is image encryption. IoT devices generally have constrained resources due to low computational potential, bounded memory, and limited power supply. This exhibits the demand for lightweight security schemes instead of traditional cryptographic algorithms to facilitate image security in an intelligent environment. This paper implemented three well-known lightweight encryption algorithms on the actual IoT, such as the Raspberry Pi 3 device, to capture and encrypt images and transmit the encrypted binary over the network. PRESENT, SIMON & XTEA lightweight algorithms are implemented on the Raspberry device. A comparison is made among those to find efficiency in terms of encryption time, PSNR, MSE, and SSIM over the live environment. On comparison over the number of factors, the SIMON algorithm was found to be the most efficient of the other two.