Multiple-Layer Security Threats on the Ethereum Blockchain and Their Countermeasures

【Author】 Duan, Li; Sun, Yangyang; Zhang, Kejia; Ding, Yong

【Source】SECURITY AND COMMUNICATION NETWORKS

【影响因子】1.968

【Abstract】Blockchain technology has been widely used in digital currency, Internet of Things, and other important fields because of its decentralization, nontampering, and anonymity. The vigorous development of blockchain cannot be separated from the security guarantee. However, there are various security threats within the blockchain that have shown in the past to cause huge financial losses. This paper aims at studying the multi-level security threats existing in the Ethereum blockchain, and exploring the security protection schemes under multiple attack scenarios. There are ten attack scenarios studied in this paper, which are replay attack, short url attack, false top-up attack, transaction order dependence attack, integer overflow attack, re-entrancy attack, honeypot attack, airdrop hunting attack, writing of arbitrary storage address attack, and gas exhaustion denial of service attack. This paper also proposes protection schemes. Finally, these schemes are evaluated by experiments. Experimental results show that our approach is efficient and does not bring too much extra cost and that the time cost has doubled at most.

【Keywords】

【发表时间】2022 14-Feb

【收录时间】2022-04-27

【文献类型】理论性文章

【主题类别】

区块链技术-核心技术-以太坊