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Paper Abstract and Keywords
Presentation 2019-07-23 11:35
A method of giving trust to users in Bitcoin
Asuka Suzuki, Teppei Sato (Tsukuba Univ.), Omote Kazumasa (Tsukuba Univ./NICT) ISEC2019-16 SITE2019-10 BioX2019-8 HWS2019-11 ICSS2019-14 EMM2019-19
Abstract (in Japanese) (See Japanese page) 
(in English) In the Bitcoin network, there is no construction to give trust to the participating nodes. On the other hand, there is PKI as a infrastructure technique for giving trust to a web site. So far, PKI research using blockchains has been actively, but research on security management of certificates using smart contracts is the main focus. In this paper, we propose a method to give trust to nodes using tokens for blockchain 1.0 which do not use smart contract. This method has the advantage that it can be realized by the functions of the existing cryptocurrency without adding a new function. Furthermore, In the testnet environment of Bitcoin which is a blockchain 1.0, we experimentally verify that the token functions as a certificate.
Keyword (in Japanese) (See Japanese page) 
(in English) Bitcoin / Blockchain / PKI / token / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 140, ISEC2019-16, pp. 29-34, July 2019.
Paper # ISEC2019-16 
Date of Issue 2019-07-16 (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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF ISEC2019-16 SITE2019-10 BioX2019-8 HWS2019-11 ICSS2019-14 EMM2019-19

Conference Information
Conference Date 2019-07-23 - 2019-07-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Kochi University of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Security, etc. 
Paper Information
Registration To ISEC 
Conference Code 2019-07-ISEC-SITE-ICSS-EMM-HWS-BioX-CSEC-SPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A method of giving trust to users in Bitcoin 
Sub Title (in English)  
Keyword(1) Bitcoin  
Keyword(2) Blockchain  
Keyword(3) PKI  
Keyword(4) token  
1st Author's Name Asuka Suzuki  
1st Author's Affiliation University of Tsukuba (Tsukuba Univ.)
2nd Author's Name Teppei Sato  
2nd Author's Affiliation University of Tsukuba (Tsukuba Univ.)
3rd Author's Name Omote Kazumasa  
3rd Author's Affiliation University of Tsukuba/ (Tsukuba Univ./NICT)
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Date Time 2019-07-23 11:35:00 
Presentation Time 25 
Registration for ISEC 
Paper # IEICE-ISEC2019-16,IEICE-SITE2019-10,IEICE-BioX2019-8,IEICE-HWS2019-11,IEICE-ICSS2019-14,IEICE-EMM2019-19 
Volume (vol) IEICE-119 
Number (no) no.140(ISEC), no.141(SITE), no.142(BioX), no.143(HWS), no.144(ICSS), no.145(EMM) 
Page pp.29-34 
#Pages IEICE-6 
Date of Issue IEICE-ISEC-2019-07-16,IEICE-SITE-2019-07-16,IEICE-BioX-2019-07-16,IEICE-HWS-2019-07-16,IEICE-ICSS-2019-07-16,IEICE-EMM-2019-07-16 

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