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Open AccessArticle

Smart Contracts: A Review of Security Threats Alongside an Analysis of Existing Solutions

Group of Analysis, Security and Systems (GASS), Department of Software Engineering and Artificial Intelligence (DISIA), Faculty of Computer Science and Engineering, Office 431, Universidad Complutense de Madrid (UCM), Calle Profesor José García Santesmases, 9, Ciudad Universitaria, 28040 Madrid, Spain
Raona Enginyers S.L. Calle de Goya, 115, 2n, 28009 Madrid, Spain
Author to whom correspondence should be addressed.
Entropy 2020, 22(2), 203;
Received: 4 December 2019 / Revised: 18 January 2020 / Accepted: 5 February 2020 / Published: 11 February 2020
(This article belongs to the Special Issue Blockchain: Security, Challenges, and Opportunities)
Smart contracts have gained a lot of popularity in recent times as they are a very powerful tool for the development of decentralised and automatic applications in many fields without the need for intermediaries or trusted third parties. However, due to the decentralised nature of the blockchain on which they are based, a series of challenges have emerged related to vulnerabilities in their programming that, given their particularities, could have (and have already had) a very high economic impact. This article provides a holistic view of security challenges associated with smart contracts, as well as the state of the art of available public domain tools.
Keywords: blockchain; Ethereum; secure development; security; smart contracts blockchain; Ethereum; secure development; security; smart contracts
MDPI and ACS Style

López Vivar, A.; Castedo, A.T.; Sandoval Orozco, A.L.; García Villalba, L.J. Smart Contracts: A Review of Security Threats Alongside an Analysis of Existing Solutions. Entropy 2020, 22, 203.

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