Abstract

To promote Industry 4.0 and Society 5.0 and so on, it is important to connect and share data so that every member can trust it. Blockchain technology is currently attracting attention as the most advanced tool and has been used in the financial field and so on. In this paper, we focus on the industrial field, using homomorphic encryption and blockchain technique. Each company on the supply chain can exchange confidential information on encrypted data and utilize the data for their own business.

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