Application Architecture of Product Information Traceability Based on Blockchain Technology and a Lightweight Secure Collaborative Computing Scheme

In the course of the rapid development of e-commerce in China, the problems of information asymmetry, unclear market responsibilities and traceability of product information in B2C sales have been restricting the long-term development of China's online retail market. In the special period when novel coronavirus is raging, e-commerce is very consequential for related medical industries such as surgical masks. Given the gradual development of blockchain technology, it can be explored to employ this technology as a basis to solve the problem of information traceability in the B2C sales process, and through the blockchain's distributed storage architecture, lightweight digital signature algorithm, consistency algorithm and other technologies to make up for product security vulnerabilities, to prevent information from being tampered with. Nevertheless, the authenticity, reliability and integrity of blockchain information transmission can also be solved by the EPC system network technology and Hash Encryption Algorithm. In this paper, we design a product information traceability application framework based on blockchain technology, aiming at the urgent need to solve the product traceability of mask enterprises during the current new crown epidemic. Also, for the corresponding scenarios in e-commerce, we propose a lightweight cooperation scheme based on blockchain technology and give security analysis. Based on lightweight cryptography, our scheme achieves identity-based authentication, peer-to-peer communication and secure collaborative computing.