DIS-VSSAOMDV: A SELF-HEALING SECURE MULTIPATH ROUTING FRAMEWORK FOR MANETS

Abstract

The dynamic nature of MANET makes security as a critical issue. Due to mobility of nodes, network is easily affected by several types of attacks .Due to node mobility, the network is highly vulnerable to various types of attacks. In particular black hole attacks cause packet dropping and misrouting of information frorm source to destination. This paper proposes an enhanced secure data transmission framework for Mobile Ad Hoc Networks (MANETs) by integrating a Digital Immune System (DIS) with Verifiable Secret Sharing (VSS) over the AOMDV routing protocol. Unlike conventional trust-based schemes, the proposed model introduces bio-inspired adaptive security, where nodes autonomously detect, learn, and respond to black hole attacks using immune principles such as antigen detection, clonal selection, and immune memory. The system dynamically evaluates node behavior through an Immune Trust Score (ITS), combining trust metrics, historical behavior, and danger signals. Furthermore, a self-healing routing mechanism ensures uninterrupted communication by switching to secure alternate paths and redistributing secret shares without data loss. The simulation results show the proposed algorithm achieves the better packet delivery ratio, misbehavior detection efficiency, fewer packets overhead and low end to end delay than the existing schemes.