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Paper Abstract and Keywords
Presentation 2014-07-04 10:15
On Hidden Credential Retrieval
SeongHan Shin, Kazukuni Kobara (AIST) ISEC2014-32 SITE2014-27 ICSS2014-36 EMM2014-32
Abstract (in Japanese) (See Japanese page) 
(in English) Hidden Credential Retrieval (HCR) protocols are designed for access credentials management where users who remember short passwords can retrieve his/her various credentials (access keys and tokens) with the help of remote storage server over insecure networks (e.g., the Internet). In this paper, we revisit a HCR protocol (we call it B-HCR) based on Boldyreva's blind signature scheme. In particular, we show that the B-HCR protocol is insecure against an outside attacker who impersonates server S. Specifically, the attacker can find out the user's password pw with off-line dictionary attacks by eavesdropping the communications between the user and a third-party online service provider. And we discuss why Boyen's security model does not capture the attacks.
Keyword (in Japanese) (See Japanese page) 
(in English) Credentials Management / Passwords / On-line/Off-line Dictionary Attacks / Insider/Outsider Attacks / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 115, ISEC2014-32, pp. 233-237, July 2014.
Paper # ISEC2014-32 
Date of Issue 2014-06-26 (ISEC, SITE, ICSS, EMM) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 ISEC2014-32 SITE2014-27 ICSS2014-36 EMM2014-32

Conference Information
Committee ICSS ISEC SITE EMM IPSJ-CSEC IPSJ-SPT  
Conference Date 2014-07-03 - 2014-07-04 
Place (in Japanese) (See Japanese page) 
Place (in English) San-Refure Hakodate 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Security 
Paper Information
Registration To ISEC 
Conference Code 2014-07-ICSS-ISEC-SITE-EMM-CSEC-SPT 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On Hidden Credential Retrieval 
Sub Title (in English)  
Keyword(1) Credentials Management  
Keyword(2) Passwords  
Keyword(3) On-line/Off-line Dictionary Attacks  
Keyword(4) Insider/Outsider Attacks  
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1st Author's Name SeongHan Shin  
1st Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
2nd Author's Name Kazukuni Kobara  
2nd Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
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Speaker Author-1 
Date Time 2014-07-04 10:15:00 
Presentation Time 25 minutes 
Registration for ISEC 
Paper # ISEC2014-32, SITE2014-27, ICSS2014-36, EMM2014-32 
Volume (vol) vol.114 
Number (no) no.115(ISEC), no.116(SITE), no.117(ICSS), no.118(EMM) 
Page pp.233-237 
#Pages
Date of Issue 2014-06-26 (ISEC, SITE, ICSS, EMM) 


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