An Innovative Blockchain-Based Orchestrator for Osmotic Computing

In the last decade, the increasing number of devices connected to the internet has allowed the development of new technologies for distributed com- puting. IoT devices have reached computing capac- ities superior to personal computers of a few years ago, and their small size, low cost and lower energy consumption have made them fundamental for the new technological evolution. This paper analyzes and compares different solutions of serverless paradigms focused on dynamic behaviour adaptation, based on Function-as-a-Service (FaaS) framework. To allow a rapid interoperability of on-demand services, we pro- pose a solution based on Blockchain, named BCB- FaaS, to ensure trustiness and accountability of func- tion configuration, providing a strong barrier to well- known cyber-attacks. In addition, a cost analysis has been performed demonstrating how Blockchain can be an economic alternative to secure decentralized communications.