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Paper Abstract and Keywords
Presentation 2021-07-20 09:50
Security Risk Considerations in NFT Reliability
Keigo Kimura (Tsukuba Univ.), Mitsuyoshi Imamura (Nomura Asset Management), Kazumasa Omote (Tsukuba Univ.) ISEC2021-30 SITE2021-24 BioX2021-31 HWS2021-30 ICSS2021-35 EMM2021-35
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, blockchains have become more and more popular,and it is important to identify the security risks to blockchains. There are various types of attacks on blockchains,including poisoning attacks on blockchains,and among the poisoning attacks,there are attacks on blockchains such as distributing forgeries of digital artworks that are managed using NFT (Non-Fungible Token). Currently, transactions using NFTs are actively conducted,and the risk of the aforementioned poisoning attack is increasing,so it is necessary to analyze the risk of NFT transactions. In this study, we analyzed the risk of trading digital artworks using NFTs,and found that there are two types of attack risks: fake attacks and double distribution attacks. In addition,we proposed an architecture for more secure NFT transactions to prevent these attacks.
Keyword (in Japanese) (See Japanese page) 
(in English) NFT / Account Credibility / digital artworks / fake artworks / Certificate Infrastructure / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 118, ISEC2021-30, pp. 123-130, July 2021.
Paper # ISEC2021-30 
Date of Issue 2021-07-12 (ISEC, SITE, BioX, HWS, ICSS, EMM) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 ISEC2021-30 SITE2021-24 BioX2021-31 HWS2021-30 ICSS2021-35 EMM2021-35

Conference Information
Conference Date 2021-07-19 - 2021-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ISEC 
Conference Code 2021-07-BioX-ISEC-SITE-ICSS-EMM-HWS-CSEC-SPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Security Risk Considerations in NFT Reliability 
Sub Title (in English)  
Keyword(1) NFT  
Keyword(2) Account Credibility  
Keyword(3) digital artworks  
Keyword(4) fake artworks  
Keyword(5) Certificate Infrastructure  
1st Author's Name Keigo Kimura  
1st Author's Affiliation Tsukuba University (Tsukuba Univ.)
2nd Author's Name Mitsuyoshi Imamura  
2nd Author's Affiliation Nomura Asset Management Ltd. (Nomura Asset Management)
3rd Author's Name Kazumasa Omote  
3rd Author's Affiliation Tsukuba University (Tsukuba Univ.)
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Date Time 2021-07-20 09:50:00 
Presentation Time 25 
Registration for ISEC 
Paper # IEICE-ISEC2021-30,IEICE-SITE2021-24,IEICE-BioX2021-31,IEICE-HWS2021-30,IEICE-ICSS2021-35,IEICE-EMM2021-35 
Volume (vol) IEICE-121 
Number (no) no.118(ISEC), no.119(SITE), no.120(BioX), no.121(HWS), no.122(ICSS), no.123(EMM) 
Page pp.123-130 
#Pages IEICE-8 
Date of Issue IEICE-ISEC-2021-07-12,IEICE-SITE-2021-07-12,IEICE-BioX-2021-07-12,IEICE-HWS-2021-07-12,IEICE-ICSS-2021-07-12,IEICE-EMM-2021-07-12 

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