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Portland State University

Computer Science Faculty Publications and Presentations

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A New Product Anti-Counterfeiting Blockchain Using A Truly Decentralized Dynamic Consensus Protocol, Naif Alzahrani, Nirupama Bulusu Mar 2019

A New Product Anti-Counterfeiting Blockchain Using A Truly Decentralized Dynamic Consensus Protocol, Naif Alzahrani, Nirupama Bulusu

Computer Science Faculty Publications and Presentations

The growth of counterfeit goods has plagued the international community for decades. Nowadays, the battle against counterfeiting remains a significant challenge. Most of the current anti‐counterfeiting systems are centralized. Motivated by the evolution of blockchain technology, we propose (Block‐Supply), a decentralized anti‐counterfeiting supply chain that exploits NFC and blockchain technologies. This paper also proposes a new truly decentralized consensus protocol that, unlike most of the existing protocols, does not require PoW and randomly employs a different set of different size of validators each time a new block is proposed. Our protocol utilizes a game theoretical model to analyze the risk …