Browsing by Author "Kamal Kant"

Now showing 1 - 3 of 3

A Journey from Commit Processing in Distributed Databases to Consensus in Blockchain
(IEEE Computer Society, 2022) Kamal Kant; Sarvesh Pandey; Udai Shanker
Blockchain Technology (BT) is a futuristic data management technology that eliminates the intermediary/ third-party/central authority as it is operated over a peer-to-peer network running cryptographic protocols. It is tamper-proof as it utilizes a cryptographic hash feature. Some other features, it offers, are transparency, security, inalterability, immutability, and decentralization; these features of the BTs have acquired the wide attention of the computing research community. While a transaction is occurring between two parties, it ensures that the trust is a consensus-driven built-in technology component instead of relying on a third party for the same. With the help of a consensus algorithm, the newly generated block is appended at the end of the already existing chain. In this paper, a thorough analysis of the various blockchain consensus algorithms is conducted including their benefits and drawbacks. Finally, it enlists the challenges and opportunities in designing blockchain consensus algorithms. Further, it proposes an idea for designing a blockchain consensus algorithm and concludes the discussion. © 2022 IEEE.
Addressing Blockchain Efficiency: A Study on Super Node-Based Consensus Mechanisms
(Institute of Electrical and Electronics Engineers Inc., 2024) Kamal Kant; Sarvesh Pandey; Udai Shanker
The success of applying blockchain technology for transaction processing is based on a consensus mechanism to be utilized. The new solutions for the same are being reported and claiming to fix or overcome it. However, the reported consensus protocols are not capable enough to serve the purpose adequately because the majority of widely used blockchain platforms purposefully exclude metrics like delay and throughput, which are essential for the efficiency of consensus protocols. Therefore, this paper discusses blockchain fundamentals, consensus mechanisms, their variants, and our super node concept is discussed, and we perform extensive experiments and our analysis preliminary results indicate that as the number of nodes increases, the throughput increases rapidly. © 2024 IEEE.
Blockchain transaction processing: Challenges and resolutions
(CRC Press, 2025) Kamal Kant; Sarvesh Pandey; Udai Shanker
This paper delves into the transformative shift from traditional databases to blockchain technology motivated by challenges such as tampering and central control inherent in databases. Traditional databases (e.g., relational databases) are structured in rows and columns while blockchain is structured as a chain of blocks secured through cryptographic primitives. Blockchain technology has paved the way for developing more practical solutions with its features, which include decentralization, security, and immutability etc. We introduce traditional databases and blockchain technology focusing on the shift towards the later. A emphasis is also placed on the pivotal role of consensus, a notable divergence that renders blockchain unique. Furthermore, we discuss key consensus algorithms, their challenges, and the opportunities they present. © 2024 selection and editorial matter, Anurag Tiwari and Manuj Darbari.