Smart Supply Chain Management with Attribute-Based Encryption Access Control

The traditional supply chain management process is becoming more automated with the use of cutting-edge blockchain technologies. This helps in reducing the time taken for various processes and also helps in reducing the overall cost. In this paper, we developed a framework for tracking the progress of the supply chain process. The framework uses a variety of technologies to track the status and the progress of products in transit. Raspberry Pi 400 is used to track the progress of products at each chain level using Radio-frequency Identification (RFID) tags as well as other sensors. The tracking data collected by the Raspberry Pi is stored on the blockchain. A decentralized storage network (DSN) is used to store the encryption of Intellectual Property (IP) data (e.g., blueprints, design choices at each production stage, etc). Attribute-based encryption is used to allow access to the data only to authorized stakeholders who have the appropriate attributes. We leverage smart contracts and Node.js to develop a decentralized application (DApp) for monitoring the supply chain process. The DApp is hosted on the decentralized Ethereum platform, which provides security and transparency for all transactions. Our security analysis demonstrates that the system is secure against data theft and the results obtained from our experiments show that our proposed framework is scalable and efficient.