A Distributed Trust and Reputation Framework for Mobile Ad Hoc Networks
Jaydip Sen

TL;DR
This paper introduces a trust-based mechanism to detect malicious packet dropping in mobile ad hoc networks, enhancing security by evaluating node behavior through reputation scores.
Contribution
It proposes a novel trust and reputation framework that detects malicious nodes based on packet forwarding behavior in MANETs.
Findings
The protocol effectively identifies malicious nodes in simulated environments.
Simulation results demonstrate improved network security and reliability.
Reputation-based trust mechanisms outperform traditional cryptographic methods in this context.
Abstract
In a multi-hop mobile ad hoc network (MANET), mobile nodes cooperate to form a network without using any infrastructure such as access points or base stations. The mobility of the nodes and the fundamentally limited capacity of the wireless medium, together with wireless transmission effects such as attenuation, multi-path propagation, and interference combine to create sig-nificant challenges for security in MANETs. Traditional cryptographic mecha-nisms such as authentication and encryption are not capable of handling some kinds of attacks such as packet dropping by malicious nodes in MANETs. This paper presents a mechanism for detecting malicious packet dropping attacks in MANETs. The mechanism is depends on a trust module on each node, which is based on the reputation value computed for that node by its neighbors. The reputation value of a node is computed based on its packet…
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