Development and Evaluation of a Lightweight Encryption Algorithm for Mobile Ad Hoc Networks

Abstract

Mobile Ad Hoc Networks are characterized by their dynamic topology and decentralized nature, which present unique challenges for ensuring secure communication. This paper presents the development and evaluation of a lightweight encryption algorithm tailored specifically for MANETs. The proposed algorithm is designed to balance security and efficiency, minimizing computational and energy overhead while maintaining robust protection against various security threats. The research methodology is divided into three primary phases. In Phase 1, a thorough literature review and requirement analysis lead to the design of the encryption algorithm using lightweight cryptographic techniques, followed by a comprehensive security analysis to identify and mitigate potential vulnerabilities. Phase 2 involves implementing the algorithm in the NS-2 simulation environment. The network topology is set up with varying node counts, and simulation scenarios are developed to test performance metrics such as encryption time, energy consumption, packet delivery ratio (PDR), and packet loss. Phase 3 focuses on the performance evaluation, where simulation data is analyzed, and the algorithm is optimized for better efficiency and security. The results demonstrate that the proposed algorithm significantly improves encryption time and energy consumption compared to existing solutions while maintaining high levels of security and data integrity. The performance metrics are thoroughly analyzed and presented through both tabular and graphical representations, highlighting the algorithm's advantages in various MANET scenarios. This research contributes to the field of network security by providing a practical and efficient encryption solution for MANETs, potentially paving the way for secure communication in future mobile networks.