Trust and Mobility-Based Protocol for Secure Routing in Internet of Things.

Area of Science:

• Computer Science
• Network Security
• Internet of Things (IoT)

Background:

• The Routing Protocol for Low Power and Lossy Networks (RPL) is vulnerable to various attacks in IoT environments.
• Existing trust-based security solutions for RPL often neglect or inadequately address node mobility.
• There is a need for security protocols that are effective in mobile IoT settings against RPL-specific attacks.

Purpose of the Study:

• To propose a novel trust and mobility-based secure routing protocol, SMTrust, for resource-constrained IoT environments.
• To enhance security against RPL Rank and Blackhole attacks by incorporating mobility metrics.
• To evaluate the performance of SMTrust in diverse IoT network scenarios, including mobile nodes.

Main Methods:

• Developed SMTrust by integrating trust metrics with mobility-based analysis for RPL security.
• Evaluated SMTrust in static and mobile IoT network scenarios.
• Compared SMTrust against RPL's Minimum Rank with Hysteresis Objective Function (MRHOF), SecTrust, DCTM, and MRTS.

Main Results:

• SMTrust demonstrated superior performance in terms of reduced packet loss rate and improved throughput.
• The proposed protocol achieved enhanced topology stability in mobile IoT environments.
• Validation confirmed SMTrust's adherence to routing protocol requirements like consistency, optimality, and loop-freeness.

Conclusions:

• SMTrust offers a robust security solution for RPL in mobile IoT networks, effectively mitigating attacks.
• The integration of mobility metrics significantly enhances the security and stability of trust-based routing protocols.
• SMTrust provides a reliable and efficient routing mechanism for dynamic IoT ecosystems.