Delegated Proof of Accessibility (DPoAC): A Novel Consensus Protocol for Blockchain Systems

Manpreet Kaur, Shikha Gupta, Deepak Kumar, Chaman Verma, Bogdan-Constantin Neagu and Maria Simona Raboaca
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Manpreet Kaur: Department of Computer Science and Engineering, University Institute of Engineering, Chandigarh University, Gharuan, Mohali 140413, Punjab, India
Shikha Gupta: Department of Computer Science and Engineering, University Institute of Engineering, Chandigarh University, Gharuan, Mohali 140413, Punjab, India
Deepak Kumar: Apex Institute of Technology, Chandigarh University, Mohali 140413, Punjab, India
Chaman Verma: Department of Media and Educational Informatics, Faculty of Informatics, Eötvös Loránd University, 1053 Budapest, Hungary
Bogdan-Constantin Neagu: Department of Power Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
Maria Simona Raboaca: National Research and Development Institute for Cryogenic and Isotopic Technologies—ICSI Rm. Vâlcea, Uzinei Street, No. 4, P.O. Box 7 Râureni, 240050 Râmnicu Vâlcea, Romania

Mathematics, 2022, vol. 10, issue 13, 1-17

Abstract: As the backbone of every blockchain application, the consensus protocol is impacted by numerous risks, namely resource requirements and energy consumption, which limit the usage of blockchain. Applications such as IoT/IIoT cannot use these high-cost consensus methods due to limited resources. Therefore, we introduce Delegated Proof of Accessibility (DPoAC), a new consensus technique that employs secret sharing, PoS with random selection, and an interplanetary file system (IPFS).DPoAC is decomposed into two stages. During the initial stage, a secret is generated by a randomly chosen super node and divided into n shares. These shares are encrypted and stored in different n nodes on the IPFS network. The nodes will compete to access these shareholders to reconstruct the secret. The winning node will be awarded block generation rights. PoS with random selection is used in the second stage to compute the appropriate hash value and construct a block with valid transactions. In this novel approach, a node with few computational resources and small stakes can still obtain block generation rights by providing access to secret shares and reconstructing the secret, making the system reasonably fair. We qualitatively analyze and compare our scheme based on performance parameters against existing mainstream consensus protocols in the context of IoT/IIoT networks.

Keywords: blockchain; consensus; DPoAC; secret sharing; IPFS; IoT; IIoT (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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