Consortium Blockchain for Security and Privacy-Preserving in E-government Systems

Noe Nnko, Longzhi Yang, Honglei Li, Fei Chao, Nitin Naik

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)


Since its inception as a solution for secure cryptocurrencies sharing in 2008, the blockchain technology has now become one of the core technologies for secure data sharing and storage over trustless and decentralised peer-to-peer systems. E-government is amongst the systems that stores sensitive information about citizens, businesses and other affiliates, and therefore becomes the target of cyber attackers. The existing e-government systems are centralised and thus subject to single point of failure. This paper proposes a secure and decentralised e-government system based on the consortium blockchain technology, which is a semi-public and decentralised blockchain system consisting of a group of pre-selected entities or organisations in charge of consensus and decisions making for the benefit of the whole network of peers. In addition, a number of e-government nodes are pre-selected to perform the tasks of user and transaction validation before being added to the blockchain network. Accordingly, e-government users of the consortium blockchain network are given the rights to create, submit, access, and review transactions. Performance evaluation on single transaction time and transactions processed per second demonstrate the
practicability of the proposed consortium blockchain-based e-government system for secure information sharing amongst all stakeholders.
Original languageEnglish
Title of host publicationICEB 2019
Place of PublicationNewcastle
Number of pages9
Publication statusPublished - 8 Dec 2019


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