Consortium blockchain for security and privacy-preserving in E-government Systems

Noe Elisa, Longzhi Yang*, Honglei Li, Fei Chao, Nitin Naik

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


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
Pages (from-to)99-107
Number of pages9
JournalProceedings of the International Conference on Electronic Business (ICEB)
Publication statusPublished - 2019
Event19th International Conference on Electronic Business, ICEB 2019 - Newcastle upon Tyne, United Kingdom
Duration: 8 Dec 201912 Dec 2019

Bibliographical note

Funding Information:
This work has been supported by the Commonwealth Scholarship Commission (CSCTZCS-2017-717) and the Royal Academy of Engineering (IAPP 1-100077).


  • Consortium blockchain
  • Decentralised systems
  • E-government systems
  • Privacy
  • Security
  • Validators


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