PPoS: An Optimized Consensus Protocol for IoT Devices

Anan, Tasnim Ferdous; Mahi, Abdullah Ibne Masud; Arnob, Tausif Khan

dc.contributor.author	Anan, Tasnim Ferdous
dc.contributor.author	Mahi, Abdullah Ibne Masud
dc.contributor.author	Arnob, Tausif Khan
dc.date.accessioned	2024-08-30T09:10:36Z
dc.date.available	2024-08-30T09:10:36Z
dc.date.issued	2023-05-30
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dc.identifier.uri	http://hdl.handle.net/123456789/2144
dc.description	Supervised by Dr. Md. Sakhawat Hossen, Associate Professor, Co-supervisor, Faisal Hussain Assistant Professor, Department of Computer Science and Engineering(CSE), Islamic University of Technology(IUT), Board Bazar, Gazipur-1704, Bangladesh.	en_US
dc.description.abstract	Internet of Things (IoT) devices are currently on the rise, with homes and businesses constantly adding and replacing old mechanisms with new, smart IoT devices. How ever, security vulnerabilities are also becoming more apparent as a result and the use of Blockchains can help reduce some aspects of these vulnerabilities. Most of these blockchains are based on private, permissioned architectures, which while are perfect for private solutions, present a new set of problems when applied to public infrastructures. We thus tried to focus on the applications of public blockchains on IoT devices. TinyEVM presents a novel solution to this problem. However TinyEVM is optimized mostly for one-to-one communication, thus having inherent scalability issues. Current consensus protocols for side-chains can be used to solve this problem, but they are either not optimal or have security risks. In this paper we thus propose a novel consensus pro tocol for side-chains, tailored for use in IoT devices in conjunction with TinyEVM which would enable the use of the public blockchain, Ethereum on most IoT devices. Periodic Proof of Stake (PPoS) is a consensus protocol based on Delegated Proof of Stake (DPoS) but with a Trust model and a focus on minimizing network traffic through performing consensus periodically and multi-casting transactions to selected nodes instead of whis pering. PPoS also provides flexibility to choose between security and energy-efficiency. Traffic, performance and security analysis shows the improvements compared to existing consensus protocols.	en_US
dc.language.iso	en	en_US
dc.publisher	Department of Computer Science and Engineering(CSE), Islamic University of Technology(IUT), Board Bazar, Gazipur-1704, Bangladesh	en_US
dc.subject	Blockchain, Internet of Things, Consensus, Ethereum, Side-chain	en_US
dc.title	PPoS: An Optimized Consensus Protocol for IoT Devices	en_US
dc.type	Thesis	en_US