On performance of PBFT for IoT-applications with constrained devices
This addresses cybersecurity for IoT devices, but it is incremental as it applies an existing consensus algorithm to a new domain.
The study analyzed the feasibility of using blockchain technology to protect data on constrained IoT devices, focusing on the Practical Byzantine Fault Tolerance (PBFT) consensus algorithm, and simulation results demonstrated its efficiency and applicability limits.
Cyber-physical systems and the Internet of things (IoT) is becoming an integral part of the digital society. The use of IoT services improves human life in many ways. Protection against cyber threats is an important aspect of the functioning of IoT devices. Malicious activities lead to confidential data leakages and incorrect performance of devices are becoming critical. Therefore, development of effective solutions that can protect both IoT devices data and data exchange networks turns in to a real challenge. This study provides a critical analysis of the feasibility of using blockchain technology to protect constrained IoT devices data, justifies the choice of Practical Byzantine Fault Tolerance (PBFT) consensus algorithm for implementation on such devices, and simulates the main distributed ledger scenarios using PBFT. The simulation results demonstrate the efficiency of the blockchain technology for constrained devices and make it possible to evaluate the applicability limits of the chosen consensus algorithm.