Improving Security in IoT System Using a Blockchain and a Microservices Technologyy

In the Internet of Things (IoT), new inventions enhanced a demand for federation cloud layers through different smart organizations to exchange data and transaction. One problem with traditional security approaches is that they rely on a centralized entity. In this research paper, we present blockchain using microservices and smart contracts for federation cloud systems in an IoT scenario. Moreover, we demonstrate the validation system to allow transactions to be exchanged between heterogeneous blockchains used by various smart organizations. Finally, we present the proposed framework that enables interconnection and guarantees the security of sharing data for various IoT systems in a federated cloud.