A survey on the security of blockchain systems

Xiaoqi Li, Peng Jiang, Ting Chen, Xiapu Luo, Qiaoyan Wen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

331 Citations (Scopus)

Abstract

Since its inception, the blockchain technology has shown promising application prospects. From the initial cryptocurrency to the current smart contract, blockchain has been applied to many fields. Although there are some studies on the security and privacy issues of blockchain, there lacks a systematic examination on the security of blockchain systems. In this paper, we conduct a systematic study on the security threats to blockchain and survey the corresponding real attacks by examining popular blockchain systems. We also review the security enhancement solutions for blockchain, which could be used in the development of various blockchain systems, and suggest some future directions to stir research efforts into this area.
Original languageEnglish
JournalFuture Generation Computer Systems
DOIs
Publication statusAccepted/In press - 1 Jan 2017

Keywords

  • Blockchain
  • Cryptocurrency
  • Security
  • Smart contract

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

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