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Paper Abstract and Keywords
Presentation 2023-03-15 11:25
Constructions of 2-party card-based protocols over a Likert scale that downgrades the scope by restricting card inputs
Yuji Suga (IIJ) IT2022-115 ISEC2022-94 WBS2022-112 RCC2022-112
Abstract (in Japanese) (See Japanese page) 
(in English) We consider card-based protocols in which the input is defined by a Likert scale and the output is only the closeness of players' opinions while keeping each other's input confidential. It is already known that $2^m$-step Likert-scale input card-based protocols can be constructed using Hamming schemes in CSS2022 etc.
In the present work, we consider the case of downgrading the scaling scope to 6 (or 8) steps from the constructions of card-based protocols over 8 (or 12) steps Likert scale. We propose simple construction methods by restricting the number of patterns to 6 (or 8) by introducing the proposals of input methods.
Keyword (in Japanese) (See Japanese page) 
(in English) Card-based protocols / Non-committed protocols / Top-to-Bottom swapping / m-deck partitioning method / Likert scale / Association schemes / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 428, ISEC2022-94, pp. 297-304, March 2023.
Paper # ISEC2022-94 
Date of Issue 2023-03-07 (IT, ISEC, WBS, RCC) 
ISSN 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 IT2022-115 ISEC2022-94 WBS2022-112 RCC2022-112

Conference Information
Committee RCC ISEC IT WBS  
Conference Date 2023-03-14 - 2023-03-15 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To ISEC 
Conference Code 2023-03-RCC-ISEC-IT-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Constructions of 2-party card-based protocols over a Likert scale that downgrades the scope by restricting card inputs 
Sub Title (in English)  
Keyword(1) Card-based protocols  
Keyword(2) Non-committed protocols  
Keyword(3) Top-to-Bottom swapping  
Keyword(4) m-deck partitioning method  
Keyword(5) Likert scale  
Keyword(6) Association schemes  
1st Author's Name Yuji Suga  
1st Author's Affiliation Internet Initiative Japan Inc. (IIJ)
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Speaker Author-1 
Date Time 2023-03-15 11:25:00 
Presentation Time 25 minutes 
Registration for ISEC 
Paper # IT2022-115, ISEC2022-94, WBS2022-112, RCC2022-112 
Volume (vol) vol.122 
Number (no) no.427(IT), no.428(ISEC), no.429(WBS), no.430(RCC) 
Page pp.297-304 
Date of Issue 2023-03-07 (IT, ISEC, WBS, RCC) 

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