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Paper Abstract and Keywords
Presentation 2015-07-13 13:00
Proposal of a Visual Secret Sharing Scheme Based on a Access Structure with Multiple Thresholds and Its Extensions
Kuya Nishizumi, Hiroki Koga (Univ. Tsukuba) IT2015-21
Abstract (in Japanese) (See Japanese page) 
(in English) The visual secret sharing scheme is a nonconventional secret sharing scheme for digital images in which a secret image is encoded to $n$ shares. Recently, Arumugam et al. considered the access structure such that a secret imageis reproduced from arbitrary more than or equal to $k$ shares including a particular share and proposed construction of basis matrices realizing the access structure. In this paper we consider a access structure such that, letting $P_A$ and $P_B$ be a partition of the $n$ shares, a secret image is reproduced from arbitrary $a$ shares from $P_A$ and $b$ shares from $P_B$, where $a$ and $b$ are constants. We propose a construction of basis matrices realizing this access structure, prove validity of the construction and evaluate performance of the basis matrices. This construction can be extended to the case where we consider more than two nonoverlapping subsets of shares.
Keyword (in Japanese) (See Japanese page) 
(in English) visual secret sharing scheme / (k,n)-threshold scheme / general access structure / basis matrix / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 137, IT2015-21, pp. 23-28, July 2015.
Paper # IT2015-21 
Date of Issue 2015-07-06 (IT) 
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 IT2015-21

Conference Information
Committee IT  
Conference Date 2015-07-13 - 2015-07-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) freshman session, general 
Paper Information
Registration To IT 
Conference Code 2015-07-IT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of a Visual Secret Sharing Scheme Based on a Access Structure with Multiple Thresholds and Its Extensions 
Sub Title (in English)  
Keyword(1) visual secret sharing scheme  
Keyword(2) (k,n)-threshold scheme  
Keyword(3) general access structure  
Keyword(4) basis matrix  
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1st Author's Name Kuya Nishizumi  
1st Author's Affiliation Tsukuba University (Univ. Tsukuba)
2nd Author's Name Hiroki Koga  
2nd Author's Affiliation Tsukuba University (Univ. Tsukuba)
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Speaker Author-1 
Date Time 2015-07-13 13:00:00 
Presentation Time 25 minutes 
Registration for IT 
Paper # IT2015-21 
Volume (vol) vol.115 
Number (no) no.137 
Page pp.23-28 
#Pages 6 
Date of Issue 2015-07-06 (IT) 

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