Conference Papers

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    Efficient PBFT: A Novel and Efficient Approach to the PBFT Consensus Algorithm
    (Springer Science and Business Media Deutschland GmbH, 2022) Rao, V.; Shenoy, A.R.; Manjappa, M.
    Blockchain technology, which is built upon the distributed and decentralised network, suffers from mutual trust among the nodes, and hence, it employs a consensus algorithm to achieve democracy. Consensus algorithm is one of the core elements of blockchain architecture, and a strong, reliable and efficient consensus algorithm is very much required for a blockchain network in order to prevent the intrusion of malicious nodes. A good consensus algorithm drives the blockchain network in the right direction by keeping the malicious transactions off the chain. Thus, in this article, a novel consensus algorithm referred to as efficient practical Byzantine fault tolerance (E-PBFT) is proposed for a private blockchain. E-PBFT finds the winner miner for mining the candidate blocks in an efficient manner which reduces the number of messages exchanged between the nodes. Further, in order to give additional security, a hidden winner miner concept is also included in E-PBFT which hides the winner miner from the adversaries, so that the adversaries will never come to know who is mining the transactions. The theoretical proof for the proposed algorithm is also given whose results are quite convincing when compared to classical PBFT algorithm. The proposed E-PBFT will definitely strengthen the blockchain network by quickly reaching the consensus and by hiding the winner miner, thereby giving additional security. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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    Building Voting Systems for a Fairer Future: Exploring Blockchain based E-voting with Ethereum for National Elections
    (Institute of Electrical and Electronics Engineers Inc., 2024) Prasad, S.V.; Shetty D, P.; Shankar, B.R.
    The increasing adoption of Blockchain technology, spurred by the success of cryptocurrencies, has gained substantial traction across various sectors. A notable application of Blockchain technology is in electronic voting (e-voting), where decentralized nodes enhance the security and integrity of the voting process. Traditional voting methods suffer from shortcomings such as result delays, susceptibility to tampering, hijacking and destruction of voting machines. Given the scalability challenges of blockchains, a single blockchain network cannot feasibly cover all constituencies in a country. Therefore, a more effective approach is to implement multiple smaller independent blockchain networks, with each constituency having its own network and blockchain. This paper discusses the concept of one network and one blockchain for one constituency, which can be replicated for every other constituencies in the country to scale up. It explores a web3-based e-voting system utilizing private Ethereum blockchain technology, focusing on a network architecture and the design that features a DApp (Decentralized Application) application with a user-friendly interface for voting in polling booths and a governing Smart Contract. Voters can cast their votes using unique identifiers like Aadhaar or UID credentials. The outcomes of this proposed e-voting system demonstrate promising and viable performance for governmental elections. However, it is advisable to conduct trials in local elections or general body elections within institutions to validate its efficacy and reliability before wider adoption in larger democratic elections. © 2024 IEEE.