Survey on analysis of Blockchain Technology

Abstract

Decentralization, autonomy, integrity, immutability, verification, fault tolerance, anonymity, auditability, and transparency are all desirable qualities in a system, and all of them are present in blockchain. In this paper, we first conduct a more in-depth survey of blockchain technology, focusing on its origins, the quantitative comparisons of consensus algorithms, the specifics of the cryptography employed in the blockchain (including public key cryptography, Zero-Knowledge Proofs, and hash functions), and the exhaustive list of use cases. Moreover, this study focuses on the blockchain's security measures. In specifically, we use a risk-based approach to evaluate blockchain security, developing a taxonomy of blockchain security risks, examining actual attacks and defects, and summarising newly created blockchain security solutions. We conclude with a discussion of the obstacles and emerging research trends that must be overcome to develop blockchain systems that are both scalable and secure enough for large-scale deployments.