Blockchain smart contracts: Applications, challenges, and future trends

ORCID Identifiers

0000-0003-4753-060X

Document Type

Article

Source of Publication

Peer-to-Peer Networking and Applications

Publication Date

1-1-2021

Abstract

In recent years, the rapid development of blockchain technology and cryptocurrencies has influenced the financial industry by creating a new crypto-economy. Then, next-generation decentralized applications without involving a trusted third-party have emerged thanks to the appearance of smart contracts, which are computer protocols designed to facilitate, verify, and enforce automatically the negotiation and agreement among multiple untrustworthy parties. Despite the bright side of smart contracts, several concerns continue to undermine their adoption, such as security threats, vulnerabilities, and legal issues. In this paper, we present a comprehensive survey of blockchain-enabled smart contracts from both technical and usage points of view. To do so, we present a taxonomy of existing blockchain-enabled smart contract solutions, categorize the included research papers, and discuss the existing smart contract-based studies. Based on the findings from the survey, we identify a set of challenges and open issues that need to be addressed in future studies. Finally, we identify future trends.

ISSN

1936-6442

Disciplines

Computer Sciences

Keywords

Blockchain technology, Peer-to-peer network, Smart contract, Survey, Systematic review

Scopus ID

85105014010

Indexed in Scopus

yes

Open Access

yes

Open Access Type

Bronze: This publication is openly available on the publisher’s website but without an open license

Link to Full Text

Share

COinS