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| Paper Abstract and Keywords | ||
| Presentation | 2019-03-08 11:10 A Decentralized Examination System using Public Blockchain Technologies Yusuke Kaneko, Shuntaro Tanaka (SMBC/JRI), Tomoyuki Kimura (SMBC), Jun Okumura (HAW), Shigeyuki Osada (JRI), Shigeyuki Azuchi (chaintope)  SITE2018-80 IA2018-72 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In the examination system for capability evaluation or the like, it is very difficult to detect errors or mistakes by test givers and scorers, since the correct/incorrect decision logic is often not undisclosed. In this paper, we propose a sustainable examination system with enhanced reliability and transparency by utilizing a public blockchain without centralized authority, and show an implementation example. In our proposed method, the hash value of the correct answer, the decision condition and the decision result are recorded in the blockchain which is practically impossible to be tampered with afterwards. We implemented our proposed method using Bitcoin Core and used it on over 100 people scale CTF(Capture The Flag) competition, and we confirmed it worked without any fatal issues in practical use. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | blockchain / correct/incorrect decision / examination system / Capture The Flag / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 480, SITE2018-80, pp. 233-238, March 2019. | |
| Paper # | SITE2018-80 | |
| Date of Issue | 2019-02-28 (SITE, IA) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SITE2018-80 IA2018-72 |
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| Conference Information | |
| Committee | IA SITE IPSJ-IOT |
| Conference Date | 2019-03-07 - 2019-03-08 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Grand XIV Naruto |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Internet and Information Ethics Education, etc. |
| Paper Information | |
| Registration To | SITE |
| Conference Code | 2019-03-IA-SITE-IOT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Decentralized Examination System using Public Blockchain Technologies |
| Sub Title (in English) | |
| Keyword(1) | blockchain |
| Keyword(2) | correct/incorrect decision |
| Keyword(3) | examination system |
| Keyword(4) | Capture The Flag |
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| 1st Author's Name | Yusuke Kaneko |
| 1st Author's Affiliation | Sumitomo Mitsui Financial Group (SMBC/JRI) |
| 2nd Author's Name | Shuntaro Tanaka |
| 2nd Author's Affiliation | Sumitomo Mitsui Financial Group (SMBC/JRI) |
| 3rd Author's Name | Tomoyuki Kimura |
| 3rd Author's Affiliation | Sumitomo Mitsui Financial Group (SMBC) |
| 4th Author's Name | Jun Okumura |
| 4th Author's Affiliation | HAW International (HAW) |
| 5th Author's Name | Shigeyuki Osada |
| 5th Author's Affiliation | The Japan Research Institute (JRI) |
| 6th Author's Name | Shigeyuki Azuchi |
| 6th Author's Affiliation | chaintope (chaintope) |
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| Speaker | Author-1 |
| Date Time | 2019-03-08 11:10:00 |
| Presentation Time | 25 minutes |
| Registration for | SITE |
| Paper # | SITE2018-80, IA2018-72 |
| Volume (vol) | vol.118 |
| Number (no) | no.480(SITE), no.481(IA) |
| Page | pp.233-238 |
| #Pages | 6 |
| Date of Issue | 2019-02-28 (SITE, IA) |
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