期刊
IEEE TRANSACTIONS ON SERVICES COMPUTING
卷 15, 期 4, 页码 2490-2510出版社
IEEE COMPUTER SOC
DOI: 10.1109/TSC.2020.3038641
关键词
Security; Blockchain; Smart contracts; Business; Computer architecture; Organizations; Encryption; Blockchain security; process security; data security; consensus algorithm; smart contract
资金
- National Key Research and Development Program of China [2018AAA0101700]
- National Natural Science Foundation of China [52075107, 71932002]
- Shenzhen Special Fund for the Development of Strategic Emerging Industries [JCYJ20170818100156260]
- S&T Planning Project of Guangdong Province [2019A050503010]
- S&T Planning Project of Sichuan Province [2019-YF05-02050-GX, 2020YFSY0061]
This article introduces the basic principles and security issues of blockchain, pointing out the problem of previous research being too technical and overlooking business and organizational aspects. Through reviewing the research status and proposing future directions, it provides insights for further research and addressing blockchain security issues.
Blockchain, an emerging paradigm of secure and shareable computing, is a systematic integration of 1) chain structure for data verification and storage, 2) distributed consensus algorithms for generating and updating data, 3) cryptographic techniques for guaranteeing data transmission and access security, and 4) automated smart contracts for data programming and operations. However, the progress and promotion of Blockchain have been seriously impeded by various security issues in blockchain-based applications. Furthermore, previous research on blockchain security has been mostly technical, overlooking considerable business, organizational, and operational issues. To address this research gap from the perspective of information systems, we review blockchain security research in three levels, namely, the process level, the data level, and the infrastructure level, which we refer to as the PDI model of blockchain security. In this survey, we examine the state of blockchain security in the literature. Based on the insights obtained from this initial analysis, we then suggest future directions of research in blockchain security, shedding light on urgent business and industrial concerns in related computing disciplines.
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