A High Resilience and High Scalable Key Pre-distribution Scheme Based on Combinatorial Designs for Resource-Constrained Devices in IoT Networks

Resource-constrained Devices are extensively used on the Internet of Things (IoT). WSN, RFID, and embedded systems are examples of these devices that have processing and communication power, memory capacity, and energy constraints. One of the lightweight methods in key distribution in these devices is to use Key Pre-Distribution Schemes (KPSs). A feature of a combinatorial key pre-distribution scheme, which is considered a deterministic scheme in key distribution, can be kept constant, while that feature may only occur in random key distribution schemes with a certain probability. In this paper, a new key pre-distribution scheme based on combinatorial designs was introduced, and using theoretical analysis, it was shown that such a scheme had high scalability and resilience compared to schemes introduced in recent years. They also enjoyed a good connectivity.