• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권11호
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• pp.3694-3722
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• 2022

In today's globalized world, there is no transparency in exchanging data and information between producers and consumers. However, these tasks experience many challenges, such as administrative barriers, confidential data leakage, and extensive time delays. To overcome these challenges, we propose a decentralized, secured, and verified smart chain framework using Ethereum Smart Contract which employs Inter Planetary File Systems (IPFS) and MongoDB as storage systems to automate the process and exchange information into blocks using the Tendermint algorithm. The proposed work promotes complete traceability of the product, ensures data integrity and transparency in addition to providing security to their personal information using the Lelantos mode of shipping. The Tendermint algorithm helps to speed up the process of validating and authenticating the transaction quickly. More so in this time of pandemic, it is easier to meet the needs of customers through the Ethermint Smart Chain, which increases customer satisfaction, thus boosting their confidence. Moreover, Smart contracts help to exploit more international transaction services and provide an instant block time finality of around 5 sec using Ethermint. The paper concludes with a description of product storage and distribution adopting the Ethermint technique. The proposed system was executed based on the Ethereum-Tendermint Smart chain. Experiments were conducted on variable block sizes and the number of transactions. The experimental results indicate that the proposed system seems to perform better than existing blockchain-based systems. Two configuration files were used, the first one was to describe the storage part, including its topology. The second one was a modified file to include the test rounds that Caliper should execute, including the running time and the workload content. Our findings indicate this is a promising technology for food supply chain storage and distribution.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2020년도 춘계학술발표대회
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• pp.211-213
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• 2020

최근 키오스크 사용 비중이 커짐으로써 그에 따른 사용자들의 개인 정보에 대한 보안 위협이 증가하였다. 호텔과 같은 숙박업소에서 이용하는 키오스크의 경우 체크인을 하기 위해 사용자들의 개인정보를 입력하는 것은 물론 숙박하는 호실의 정보도 가지고 있다. 이 경우 정보 유출 시 개인 정보 유출 이외의 다른 범죄가 발생할 수 있다. 이와 같은 키오스크 보안의 한계점을 보완하기 위해 본 논문에서는 Tendermint 기반의 블록체인을 이용하여 기존 일방향적인 결제 시스템을 지닌 기존 키오스크 체크인 시스템의 단점을 보완하고 키오스크 체크인의 보안성 및 신뢰성을 강화하는 방법을 제안한다.