Efficient Lightweight Encryption Algorithm for Smart Video Applications

TL;DR

This paper introduces EXPer, a lightweight symmetric stream cipher designed for secure, real-time video transmission in resource-constrained IoT devices, offering comparable security to AES with reduced computational cost.

Contribution

The paper presents a novel lightweight encryption algorithm, EXPer, optimized for multimedia IoT applications, outperforming traditional algorithms like AES in efficiency while maintaining security.

Findings

EXPer achieves security comparable to AES.

EXPer has lower computational cost than AES.

Tested on various videos, EXPer is suitable for real-time IoT applications.

Abstract

The future generation networks: Internet of things (IoT), in combination with the advanced computer vision techniques poses new challenges for securing videos for end-users. The visual devices generally have constrained resources in respects to their low computation power, small memory with limited power supply. Therefore, to facilitate the video security in smart environment, lightweight security schemes are required instead of inefficient existing traditional cryptography algorithms. This research paper provides the solution to overcome such problems. A novel lightweight cipher algorithm is proposed here which targets multimedia in IoT with an in-house name EXPer i.e. Extended permutation with eXclusive OR (XOR). EXPer is a symmetric stream cipher that consists of simple XOR and left shift operations with three keys of 128 bits. The proposed cipher algorithm has been tested on various sample videos. Comparison of proposed algorithm has been made with the traditional cipher algorithms XOR and Advanced Encryption Standard (AES). Visual results confirm that EXPer provides security level equivalent to the AES algorithm with less computational cost than AES. Therefore, it can easily be perceived that the EXPer is a better replacement of AES for securing real-time video applications in IoT.