DESIGN OF AN EFFICIENT AND SECURE SMART CITY FRAMEWORK USING BLOCKCHAIN

One of the main goals of contemporary technology breakthroughs is the development of smart services for smart cities.In order to collect and process data from a variety of sources, mobile scanners are essential.Applications for smart cities highlight how important it is for diverse devices to share data securely.However, some data sharing practices can put data integrity, security, and privacy at risk.One of the main causes of previous security breaches has been the dependence on a centralized repository.Therefore, it is essential for modern apps to ensure safe authentication and the protection of sensitive data.Blockchain is a popular technology that guarantees the confidentiality and integrity of data.This study presents SecPrivPreserve, a cutting-edge blockchain-based architecture intended to improve the security and integrity of data produced by mobile scanners.Initialization, registration, data protection, authentication, access control, validation, data sharing, and safe downloads are some of the stages that the suggested framework uses to secure data.SecPrivPreserve incorporates a number of securityenhancing measures, including hashing, encryption, and authentication methods, to improve confidentiality, privacy, and integrity.This system uses QR codes for secure access and data-sharing keys to further improve security, in contrast to conventional methods that rely on one-time passwords (OTP) for authentication and data sharing.The SecPrivPreserve structure naturally benefits from non-repudiation and tamper-proof records because it is based on a permissioned blockchain.Additionally, data protection methods can improve the security of cryptography. INTRODUCTIONIn recent years, every country in the globe has been utilizing smart technology to improve its infrastructure, services, and apps for the benefit of their citizens.In order to enable data transfer between many locations, the Internet of Things (IoT) is essential for connecting physical devices to the internet utilizing various protocols.IoT-based services have become more necessary in the last few decades in a number of industries, including manufacturing, healthcare, financial services, energy transfer, traffic and weather monitoring, and more.