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학술지 Smart Contract-Based Review System for an IoT Data Marketplace
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저자
박지선, 윤택영, 김혜빈, 이경현, 신상욱
발행일
201810
출처
Sensors, v.18 no.10, pp.1-16
ISSN
1424-8220
출판사
MDPI AG
DOI
https://dx.doi.org/10.3390/s18103577
협약과제
18ZH1200, 데이터 안심사회를 위한 트러스트 데이터 커넥톰 핵심 원천 기술 개발, 박종대
초록
Internet of Things (IoT)-based devices, especially those used for home automation, consist of their own sensors and generate many logs during a process. Enterprises producing IoT devices convert these log data into more useful data through secondary processing; thus, they require data from the device users. Recently, a platform for data sharing has been developed because the demand for IoT data increases. Several IoT data marketplaces are based on peer-to-peer (P2P) networks, and in this type of marketplace, it is difficult for an enterprise to trust a data owner or the data they want to trade. Therefore, in this study, we propose a review system that can confirm the reputation of a data owner or the data traded in the P2P data marketplace. The traditional server-client review systems have many drawbacks, such as security vulnerability or server administrator's malicious behavior. However, the review system developed in this study is based on Ethereum smart contracts; thus, this system is running on the P2P network and is more flexible for the network problem. Moreover, the integrity and immutability of the registered reviews are assured because of the blockchain public ledger. In addition, a certain amount of gas is essential for all functions to be processed by Ethereum transactions. Accordingly, we tested and analyzed the performance of our proposed model in terms of gas required.
KSP 제안 키워드
BlockChain, Contract-based, Data marketplace, Data sharing, Home automation, Internet of thing(IoT), IoT Devices, Log data, Proposed model, Public ledger, Review system
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