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DeExam: A Decentralized Exam Administration Model using Public Blockchain

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Shigeyuki OsadaAuthors Info & Claims

BIOTC '21: Proceedings of the 2021 3rd Blockchain and Internet of Things Conference

Pages 1 - 7

https://doi.org/10.1145/3475992.3475993

Published: 02 October 2021 Publication History

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Abstract

In exams, which are intended to evaluate capability, it is practically difficult to detect errors or mistakes made by test providers and scorers, as the correct/incorrect decision logic is often not disclosed. Therefore, we propose a sustainable exam administration model with enhanced reliability and transparency, utilizing a public blockchain, without a centralized authority. The blockchain records the hash values of the correct answers, decision condition, and decision result, which cannot be tampered with afterward. We implemented our proposed method using Bitcoin Core and used it to conduct a CTF (Capture The Flag) competition with over 100 participants. No fatal flaws were observed, thereby confirming the viability of the method.

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Jani CMishra RKalla A(2023)Secure blockchainized Decentralized Messaging Application (DMApp) for Educational InstituteSoftware Impacts10.1016/j.simpa.2023.10049416(100494)Online publication date: May-2023
https://doi.org/10.1016/j.simpa.2023.100494
Kapadia PNaik MMishra RKalla A(2023)Blockchain and Flutter-Based Quiz Mobile DApp Toward Decentralized Continuous AssessmentProceedings of International Conference on Network Security and Blockchain Technology10.1007/978-981-99-4433-0_42(501-511)Online publication date: 29-Nov-2023
https://doi.org/10.1007/978-981-99-4433-0_42

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BIOTC '21: Proceedings of the 2021 3rd Blockchain and Internet of Things Conference

July 2021

82 pages

ISBN:9781450389518

DOI:10.1145/3475992

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 02 October 2021

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BIOTC 2021: 2021 the 3rd Blockchain and Internet of Things Conference

July 8 - 10, 2021

Ho Chi Minh City, Vietnam

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Jani CMishra RKalla A(2023)Secure blockchainized Decentralized Messaging Application (DMApp) for Educational InstituteSoftware Impacts10.1016/j.simpa.2023.10049416(100494)Online publication date: May-2023
https://doi.org/10.1016/j.simpa.2023.100494
Kapadia PNaik MMishra RKalla A(2023)Blockchain and Flutter-Based Quiz Mobile DApp Toward Decentralized Continuous AssessmentProceedings of International Conference on Network Security and Blockchain Technology10.1007/978-981-99-4433-0_42(501-511)Online publication date: 29-Nov-2023
https://doi.org/10.1007/978-981-99-4433-0_42

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