Praneeth, P.Tanguturu, R.Aenugutala, S.P.Cunha, T.B.D.Manjappa, K.2026-02-062023Conference of Open Innovation Association, FRUCT, 2023, Vol.2023-May, , p. 46-5323057254https://doi.org/10.23919/FRUCT58615.2023.10143051https://idr.nitk.ac.in/handle/123456789/29536With recent advancements in the Internet of things, challenges to secure devices and data related to devices have increased. Adversaries using different threats manage to clone/hack/tamper devices by hacking credentials stored in centralised databases. In this work, a decentralised approach using blockchain is proposed to check the authenticity of the device/user trying to access the services of the service provider network. The proposed method uses public and private blockchain networks and Physical Unclonable Function (PUF) to authenticate the device/user and to store their credentials. The decentralised application runs on Hyperledger Fabric, an open-source platform for building blockchain networks. The proposed protocol is tested and implemented in the physical testbed containing Raspberry Pi and Arduino Mega's. © 2023 FRUCT.