Smart contract-based security architecture for collaborative services in municipal smart cities

The Internet of Things (IoT) can provide intelligent and effective solutions to various applications with higher accuracy that requires less or no human intervention. Smart Cities are one the significant IoT comprising a collection services such as transportation, waste management, smart homes, etc. These heterogeneous offer wide range collaborative in cities. A municipality city is concept which digital municipal corporation developed comprehensive local government collaboration based on digitization automation aiming towards raising living standards citizens. Interoperability between for tasks creates challenges data security privacy. Ensuring integrity confidentiality information critical, reliable essential both its In this paper, we proposed service architecture authentication authorization constrained environments during Software Defined Networking (SDN) contract-enabled framework being tested Multichain Blockchain networks. We present novel method using contracts multichain blockchains architecture. solution dynamism govern control all interactions transactions securely different implemented supportive use case an SDN-enabled evaluate feasibility