2019/06/05 by Sidra Malik, Malik, Sidra, Volkan Dedeoglu +5
Computer Science · #Blockchain Technology Applications and Security #Cloud Data Security Solutions #Cryptography and Security (cs.CR) #FOS: Computer and information sciences #Spam and Phishing Detection
paper · pdf · doi:10.48550/arxiv.1906.01831
openalex publication_date 2019/06/05 · openalex created_date 2022/07/29 · openalex updated_date 2026/07/28
Traceability and integrity are major challenges for the increasingly complex\nsupply chains of today's world. Although blockchain technology has the\npotential to address these challenges through providing a tamper-proof audit\ntrail of supply chain events and data associated with a product life-cycle, it\ndoes not solve the trust problem associated with the data itself. Reputation\nsystems are an effective approach to solve this trust problem. However, current\nreputation systems are not suited to the blockchain based supply chain\napplications as they are based on limited observations, they lack granularity\nand automation, and their overhead has not been explored. In this work, we\npropose TrustChain, as a three-layered trust management framework which uses a\nconsortium blockchain to track interactions among supply chain participants and\nto dynamically assign trust and reputation scores based on these interactions.\nThe novelty of TrustChain stems from: (a) the reputation model that evaluates\nthe quality of commodities, and the trustworthiness of entities based on\nmultiple observations of supply chain events, (b) its support for reputation\nscores that separate between a supply chain participant and products, enabling\nthe assignment of product-specific reputations for the same participant, (c)\nthe use of smart contracts for transparent, efficient, secure, and automated\ncalculation of reputation scores, and (d) its minimal overhead in terms of\nlatency and throughput when compared to a simple blockchain based supply chain\nmodel.\n