Leveraging blockchain and smart contracts for improved IoT data integrity and privacy

Abstract

The proposed research is to provide a secure framework for transmitting and managing IoT sensor data using blockchain technology. The system involves different types of users, each with the ability to register, log in, and upload IoT sensor data. The data transmission is secured using the SHA-256 cryptographic algorithm, ensuring that sensor data is protected from unauthorized access. Both users can utilize Blockchain APIs or smart contracts to increase security and maintain transparency during data exchange. Additionally, users can decrypt the sensor data provided by each other, ensuring secure and trustworthy communication between devices within the IoT network. This system leverages blockchain decentralized nature to protect the data sensor data, prevent tampering and unauthorized modifications. The system’s performance is tested on different key sectors such as financial management, Health sector, supply chain and E-Governance data.