Security Enhancement in Tea Supply Chain using Blockchain with Hyperledger

With the advancement of technology and emergence of blockchain, it has become quite a popular tool which is often integrated with systems and processes that require decentralization, traceability, consistency etc. One such area is of supply chain management. Often the raw materials used to make a final product do not come from a single source and hence there has been always a risk of making counterfeit, cloned item of the same. Same goes in the case of tea powder production too. Seeds used and leaves planted come from different sources which collectively determine the quality of the end tea powder. The proposed work tackles issues not only by providing traceability but also contributes in the overall security of the system by making use of Hyperledger fabric and Elliptic Curve Digital Signature Algorithm (ECDSA). In addition to these features, cross platform payment is also made possible by integrating the system with bridges. By making use of Hyperledger fabric and Interplanetary File System (IPFS), latency is decreased as well as throughput is increased. Additionally, making use of ECDSA provides same level of security with smaller key size and generates signature faster as compared to other cryptographic algorithms like Rivest-Shamir-Adleman (RSA).