Enhancing Data Security in Smart Cities with a Smart Contract-based Architecture and Hyperledger Fabric

Abstract

Abstract A smart city provides innovative services to citizens to improve their quality of life. A smart city generates vast amounts of data as Internet of Things (IoT) integration increases. However, gathering, storing, processing, and analyzing this data can pose significant challenges, particularly given its heterogeneous nature and the fact that citizens often contribute to it. A Linux Foundation project called Hyperledger includes the Hyperledger Fabric (HF), developed by IBM and contributing to Hyperledger's development. This paper suggests a smart contract-based data security network for smart cities that uses HF. Data access rules and data-sharing policies can be enforced using smart contracts. A framework is proposed for integrating multiple smart city applications and services while ensuring data privacy and security. A significant contribution to the existing literature is made by this study, which examines the usefulness of blockchain technology and smart contracts in smart cities for data security.