In the recent decade, there has been an exponential rise in the development and study of Blockchain Technology space. The driving force behind the interest in Blockchain research has been its key characteristics that provide security, anonymity, and integrity without relying on trusted third party organizations. Initially, Blockchain usage was restricted to cryptocurrencies only, however, with the advent of Ethereum that supports creation and execution of smart contracts (small computer programs that run on Blockchain), applications beyond cryptocurrencies are being developed and explored. Although there has been substantial progress towards improving Blockchain technology with a focus on the smart contracts, however, it was identified that there is a lack of descriptive review on the applicability of smart contracts in securing the Internet and IoT. This paper aims to identify and analyse peer reviewed literature that seeks to use Blockchain smart contracts for securing Internet in general and Internet of Things in particular and presents the systematic analysis of the identified literature. Finally, the paper highlights some challenges and future research directions in the field of Blockchain smart contracts application in securing Internet and IoT.

近十年来，区块链技术领域的发展和研究呈指数级增长。对区块链研究感兴趣的推动力一直是其关键特征，这些特征提供了安全性，匿名性和完整性，而无需依赖可信赖的第三方组织。最初，区块链的使用仅限于加密货币，但是随着以太坊的出现，支持创建和执行智能合约（运行在区块链上的小型计算机程序），正在开发和探索加密货币以外的应用程序。尽管在改善区块链技术（以智能合约为重点）方面已取得重大进展，已经确定，对于智能合约在保护互联网和物联网方面的适用性缺乏描述性审查。本文旨在识别和分析同行评审的文献，这些文献试图使用区块链智能合约来保护一般的互联网特别是物联网的安全，并对提出的文献进行系统的分析。最后，本文重点介绍了在保护互联网和物联网方面的区块链智能合约应用领域中的一些挑战和未来的研究方向。