Enhancing RD-BIBD Key Pre-distribution with Permutation Aware Node Assignment in Fog Computing
This paper proposes a secure, hierarchical key pre-distribution scheme for fog-assisted IoT networks that enhances resilience against physical node capture attacks by integrating Residual Design-based combinatorial structures with a randomized permutation mechanism to obscure the deterministic mapping between cryptographic blocks and physical nodes, all while maintaining low overhead and high connectivity.