A Comprehensive Survey of Consensus Protocols, Challenges, and Attacks of Blockchain Network

Blockchain technology is a decentralized and distributed database that allows secure transactions without the need for intermediaries. Blockchain technology is powered by consensus protocols, which ensure that all the nodes in the network agree on the state of the ledger. This paper provides a comprehensive review of the consensus protocols used in blockchain technology. Blockchain technology has gained a lot of attention in recent years, but it also faces several challenges This paper discusses the challenges facing blockchain technology. Additionally, this paper examines the various types of attacks that can be launched against blockchain networks and explains how they can affect blockchain networks.