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Paper Abstract and Keywords
Presentation 2007-07-19 16:35
On Anonymous Password-Authenticated Key Exchange
SeongHan Shin, Kazukuni Kobara, Hideki Imai (AIST/Chuo Univ.) ISEC2007-37 SITE2007-31
Abstract (in Japanese) (See Japanese page) 
(in English) An anonymous password-authenticated key exchange (PAKE) protocol is
designed to provide both user's password-based authentication and
anonymity against a semi-honest server. However, the computation and
communication costs of the previous construction grow linearly with
the number of users. In this paper, we propose two efficient anonymous PAKE (called, MEAP and VEAP)
protocols which provide unconditional anonymity of the involved
user. If the pre-computation is allowed, the overall computation
cost of the MEAP protocol is independent of the number of
users. We also show how the VEAP protocol works where the
overall computation and communication costs are completely
independent of the number of users. In the VEAP protocol, user
(resp., server) needs only 2 (resp., 3) on-line modular
exponentiations. The security of both protocols is based on the
CT-CDH (Chosen Target CDH) problem in the random oracle model.
Keyword (in Japanese) (See Japanese page) 
(in English) authenticated key exchange / passwords / on-line attacks / off-line attacks / anonymity / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 140, ISEC2007-37, pp. 145-151, July 2007.
Paper # ISEC2007-37 
Date of Issue 2007-07-12 (ISEC, SITE) 
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 ISEC2007-37 SITE2007-31

Conference Information
Committee ISEC SITE IPSJ-CSEC  
Conference Date 2007-07-19 - 2007-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Future University-Hakodate 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ISEC 
Conference Code 2007-07-ISEC-SITE-IPSJ-CSEC 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On Anonymous Password-Authenticated Key Exchange 
Sub Title (in English)  
Keyword(1) authenticated key exchange  
Keyword(2) passwords  
Keyword(3) on-line attacks  
Keyword(4) off-line attacks  
Keyword(5) anonymity  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name SeongHan Shin  
1st Author's Affiliation AIST/Chuo University (AIST/Chuo Univ.)
2nd Author's Name Kazukuni Kobara  
2nd Author's Affiliation AIST/Chuo University (AIST/Chuo Univ.)
3rd Author's Name Hideki Imai  
3rd Author's Affiliation AIST/Chuo University (AIST/Chuo Univ.)
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Speaker Author-1 
Date Time 2007-07-19 16:35:00 
Presentation Time 25 minutes 
Registration for ISEC 
Paper # ISEC2007-37, SITE2007-31 
Volume (vol) vol.107 
Number (no) no.140(ISEC), no.139(SITE) 
Page pp.145-151 
#Pages 7 
Date of Issue 2007-07-12 (ISEC, SITE) 

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