Chain Security: Nodes, Algorithm, and Network

Ken Huang ()
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Ken Huang: DistributedApps.AI

Chapter Chapter 2 in A Comprehensive Guide for Web3 Security, 2023, pp 31-60 from Springer

Abstract: Abstract This chapter offers a comprehensive overview of three key aspects of blockchain security: node security, consensus algorithm security, and network layer security. Each element is vital to maintain the integrity of the blockchain network and prevent manipulation by malicious actors. Node security is explored, stressing the significance of securing individual nodes with secure hardware, robust encryption, regular updates, and decentralization. The risks of node centralization are discussed, emphasizing the need for a decentralized network to avoid a single point of failure. The critical role of consensus algorithm security in validating and adding new blocks to the ledger is examined, ensuring all nodes agree on the ledger’s state and preventing tampering. A secure, well-designed consensus algorithm that undergoes regular updates is crucial, as a flawed algorithm can jeopardize the entire network’s security. Lastly, the chapter addresses network layer security, focusing on protecting data transmitted between nodes. Network integrity protection is highlighted, emphasizing the importance of countermeasures against network layer attack to safeguard the blockchain.

Keywords: Blockchain security; Node security; Consensus Algorithm Security; Network layer security; Malicious actors; Encryption; Decentralization; Node centralization risks; Countermeasures against attacks (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/978-3-031-39288-7_2

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