Design and Analysis of Efficient Consensus Algorithms to Enhance the Security and Performance of Blockchain

Abstract: Blockchain is a transformative technology that enables secure, transparent, and decentralized digital transactions by storing data across a distributed network of computers. It eliminates the need for intermediaries by using cryptographic techniques to ensure the integrity and immutability of records. Blockchain is revolutionizing various industries, from finance to supply chain management. Consensus algorithms are the foundational protocols in blockchain networks that ensure all participating nodes agree on the validity of transactions, maintaining the system's security and consistency without central authority. Two consensus algorithms were proposed which are based on proof of work and proof of stake. The first one is a two-phase consensus algorithm, The first phase consists of proof of stake and the second stage consists of proof work. The Second proposed algorithm is based on the coin-age selection criteria of proof of stake. The proposed algorithms were simulated and analyzed for their security and performance with the existing algorithms and published results. The proposed algorithms are far better in terms of performance and security as per the results achieved. Keywords: Blockchain, Consensus Algorithms, Coin-age Selection, Proof of Work, Proof of Stake, Performance, Security. Title: Design and Analysis of Efficient Consensus Algorithms to Enhance the Security and Performance of Blockchain Author: Anjaneyulu Endurthi, Akhil Khare International Journal of Novel Research in Computer Science and Software Engineering ISSN 2394-7314 Vol. 11, Issue 3, September 2024 - December 2024 Page No: 41-56 Novelty Journals Website: www.noveltyjournals.com Published Date: 30-October2024 DOI: https://doi.org/10.5281/zenodo.14012653 Paper Download Link (Source) https://www.noveltyjournals.com/upload/paper/Design%20and%20Analysis%20of%20Efficient-30102024-9.pdf