Blockchain based Automated Formal Model for Safety and Security in Smart Parking System

Blockchain technology is being implemented in security systems because of its decentralization and security assurances attributes. In this work, blockchain based smart parking system is presented to overcome the data security and vehicle safety issues. We integrate blockchain technology with Internet of Things (IoT) to make the system reliable. The blockchain-based smart parking system behavior is described using Unified Modeling Language (UML). We automate our system using Non-Deterministic Finite Automata (NFA) to show the system working in the form of states and transactions. The NFA is used in this paper because of its abstract power of modelling using the systems. Formal method-based technique, i.e., Vienna Development Method-Specification Language (VDM-SL) is used to formally verify the system. The system correctness is verified using VDM-SL toolbox through its various available facilities.