System and method for managing and tracking a supply network based on a blockchain

摘要

The present invention relates to a supply chain management and tracking system based on blockchain. The supply chain management and tracking system utilizes smart contract technology to code business logic, such as performing operations according to conditions, and write them to the blockchain to ensure the enforcement and reliability of contract execution. In particular, the system according to the present invention allows real-time status checking of goods transported in the supply chain and ALARMING to nodes on the blockchain in real time when an abnormality occurs. In addition, a mobile device associated with a product that requires confidentiality generates a transaction's information and sensor measurements in a period T, and some data is encrypted with a shared secret (S) and recorded in a smart contract in the blockchain. This ensures the confidentiality of the product and allows only users with the shared secret value (S) to read the data. In the system according to the present invention, all transactions are made up of blocks and stored and shared on the blockchain, thereby ensuring authentication, non-repudiation, and integrity, thereby preventing malicious attackers from hacking and tampering with data. Can be.