Abstract
Trust is a critical yet often overlooked factor in network routing, especially in decentralized and dynamic environments such as IoT and ad-hoc networks. The DrATC algorithm addressed this gap by incorporating a comprehensive set of trust characteristics into dynamic routing decisions. In this paper, we propose DrATC+, an extension of the original model that applies the divide et impera (divide and conquer) principle to trust-based routing. DrATC+ enhances resilience and security by splitting messages into segments and routing them through multiple trusted paths, selected based on composite trust evaluations. We present the design and operational workflow of the algorithm, supported by evaluation scenarios. Our results demonstrate that DrATC+ can improve fault tolerance and mitigate the impact of malicious nodes adapting effectively to changing trust conditions. This work lays the foundation for more robust and adaptive trust-aware routing protocols in future networked systems.
Authors: Davide Ferraris, Letizia Russo, Lorenzo Monti
Conference/Journal: Security and Trust Management (STM 2025), Lecture Notes in Computer Science, vol 16137, Springer
Keywords: Trust, Network, Routing, IoT, Security
