A Blockchain-based Lightweight Authentication Solution for IoT

Internet of Things (IoT) systems are almost a part of our daily lives. The security of this new paradigm had always faced many challenge in order to insure user privacy and authentication. These security issues are still far from being solved by the classical centralized architectures which reaches their limits in terms of scalability especially when thousands or tens of thousands of IoT devices are connected in the same network. To remedy this architectural issue, we rely on blockchains in order to propose a simple and lightweight blockchain-based authentication solution for IoT systems. We provided a real implementation of our proposed scheme relying on Ethereum blockchain and using different devices in order to confirm its feasibility and evaluate its initial performances. The results obtained confirm its suitability to such environments.