期刊
FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE
卷 107, 期 -, 页码 841-853出版社
ELSEVIER
DOI: 10.1016/j.future.2017.08.020
关键词
Blockchain; Security; Cryptocurrency; Smart contract
资金
- National Science Foundation of China [61471228]
- Key Project of Guangdong Province Science AMP
- Technology Plan [2015B020233018]
- National Natural Science Foundation of China [61402080, 61572115, 61502086, 61572109]
- China Postdoctoral Science Foundation [2014M562307]
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. (c) 2017 Elsevier B.V. All rights reserved.
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