Journal Articles

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/19884

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Author: search.filters.author.Manjappa, M.Subject: search.filters.subject.Blockchain

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    Blockchain based secure Ownership Transfer Protocol for smart objects in the Internet of Things
    (Elsevier B.V., 2024) Manjappa, M.; Ray, B.; Hassan, J.; Kashyap, A.; Chandrappa, V.Y.
    Secure digital ownership transfer is critical for smart objects within the Internet of Things (IoT) ecosystem. This paper presents the Ownership Transfer Protocol (OTP), which leverages Physically Unclonable Function (PUF) and blockchain technology to ensure the secure transfer of ownership for smart objects in the IoT. The proposed protocol can securely track and trace smart objects during their movement in the IoT supply chain. Unlike the traditional Ownership Transfer (OT) architecture, the proposed architecture does not require a Trusted Third Party (TTP) and can support Partial Ownership Transfer (POT). The innovative use of immutable blockchain architecture enabled the proposed protocol to effectively support distributed environments and authenticate both the device and involved parties. The proposed protocol is evaluated for its robustness against common attacks outlined in this paper and implemented using the Ethereum blockchain. The testbed results on Ethereum confirm the optimal gas consumption of the proposed model. Furthermore, utilizing the security claim verification tool, Scyther, the experiment validates the security claim regarding the communication between the parties involved in the proposed protocol's OT process. © 2023 Elsevier B.V.
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    Physical unclonable functions and QKD-based authentication scheme for IoT devices using blockchain
    (Elsevier B.V., 2024) Cunha, T.B.D.; Manjappa, M.; Ranjan, R.; Vasilakos, A.V.
    As the number of Internet of Things (IoT) devices is increasing exponentially, strong security measures are needed to guard against different types of cyberattacks. This research offers a novel IoT device authentication technique to mitigate these challenges by integrating three cutting-edge technologies namely blockchain technology, Quantum Key Distribution (QKD), and Physically Unclonable Functions (PUFs). By utilizing the distinctive qualities of PUFs for device identification and the unrivaled security of QKD for key exchange, the proposed approach seeks to address the significant security issues present in IoT environments. Adopting blockchain technology ensures transparency and verifiability of the authentication process across distributed IoT networks by adding an unchangeable, decentralized layer of trust. An examination of the computing and communication costs reveals that the proposed protocol is effective, necessitating low computational resources that are critical for IoT devices with limited resources. The protocol's resistance against a variety of attacks is demonstrated by formal proofs based on the Real-Or-Random (ROR) model and security evaluations using the Scyther tool, ensuring the integrity and secrecy of communications. Various threats are analyzed, and the protocol is proven to be secure and efficient from all forms of attacks. © 2024 Elsevier B.V.