Security in Permissioned Blockchain

William Zhang
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William Zhang: Bank for International Settlements Innovation Hub - Nordic Centre

Chapter Chapter 10 in A Comprehensive Guide for Web3 Security, 2023, pp 201-215 from Springer

Abstract: Abstract When enterprises adopt the blockchain technology for their use cases, they typically would choose to deploy a permissioned blockchain, in which only authorized parties would be able to run a blockchain node. With the smaller number of nodes run by known entities, these blockchain networks tend to have much higher throughput, use simplified consensus protocols, and be able to provide privacy features while gaining the benefits of transparency, integrity, etc. When adopting a permissioned blockchain solution, the participants need to pay special attention to the architecture design to make sure the number of nodes, the level of independence among the nodes, and the chosen consensus protocol would provide enough decentralization so that the architecture could support the business objectives as intended. They need to ensure a robust mechanism for onboarding new nodes and verifying the identity of each node during operations, and defining the strategy for removing nodes, ensuring that such action would not compromise the integrity of the overall architecture. The participants should then fully leverage the security practices within the organizations to secure each node as well as the communications between these nodes and synchronize on any need to upgrade the blockchain software or smart contracts.

Keywords: Enterprise blockchain adoption; Permissioned blockchain; Blockchain node management; Blockchain throughput; Consensus protocols; Privacy features; Node onboarding and verification; Node removal strategy; Blockchain software and smart contract upgrades (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/978-3-031-39288-7_10

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