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Paper Abstract and Keywords
Presentation 2015-05-12 13:30
A Verification Method for k-Secrecy of XML Databases by Model Counting
Takatoshi Asai, Masanori Uesugi, Kenji Hashimoto, Hiroyuki Seki (Nagoya Univ.) SS2015-15
Abstract (in Japanese) (See Japanese page) 
(in English) An inference attack is a malicious way to obtain the result of an unauthorized query
by combining the database schema, the results of the authorized queries and the code
(meaning) of the queries.
A database instance is $k$-secret if an attacker cannot narrow down the candidates
of the results of the unauthorized query to less than $k$.
This paper proposes a method of deciding a sufficient condition of $k$-secrecy
by reducing the problem to a model counting problem for the propositional logic.
The paper shows the experimental results conducted on the verification tool based
on the proposed method.
Furthermore, we provide an upper-bound of the size of a candidate database instance
so that our sufficient condition of $k$-secrecy becomes a necessary condition.
Keyword (in Japanese) (See Japanese page) 
(in English) k-secrecy / XML database / tree transducer / model counting / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 20, SS2015-15, pp. 71-76, May 2015.
Paper # SS2015-15 
Date of Issue 2015-05-04 (SS) 
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 SS2015-15

Conference Information
Committee SS  
Conference Date 2015-05-11 - 2015-05-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Kumamoto University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SS 
Conference Code 2015-05-SS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Verification Method for k-Secrecy of XML Databases by Model Counting 
Sub Title (in English)  
Keyword(1) k-secrecy  
Keyword(2) XML database  
Keyword(3) tree transducer  
Keyword(4) model counting  
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Keyword(6)  
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1st Author's Name Takatoshi Asai  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Masanori Uesugi  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Kenji Hashimoto  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
4th Author's Name Hiroyuki Seki  
4th Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2015-05-12 13:30:00 
Presentation Time 30 minutes 
Registration for SS 
Paper # SS2015-15 
Volume (vol) vol.115 
Number (no) no.20 
Page pp.71-76 
#Pages 6 
Date of Issue 2015-05-04 (SS) 

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