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Paper Abstract and Keywords
Presentation 2013-03-15 10:00
Identifying User Authentication Methods on SSH Sessions
Akihiro Satoh, Yutaka Nakamura, Takeshi Ikenaga (Kyushu Inst. of Tech.) SITE2012-61 IA2012-99
Abstract (in Japanese) (See Japanese page) 
(in English) A dictionary attack against SSH services is a common security threat. Traditional ways for detecting the attacks rely on network traffic. The ways capture traffic through observation points and then block a host which has massive sessions. However, the ways cannot correctly detect SSH dictionary attacks because of the similarity between sessions of automated processing through SSH and those of the attacks. In this paper, we resolve this problem by identifying user authentication methods on SSH sessions, and remove sessions which employ non-keystroke based authentication. The reason rests on two perspectives: (1)~an SSH dictionary attack targets a host which provides keystroke based authentication; (2)~automated processing through SSH needs to support non-keystroke based authentication. Thus, our proposal contributes to improvement in the detection accuracy of the SSH dictionary attacks.
Keyword (in Japanese) (See Japanese page) 
(in English) Secure Shell / SSH Dictionary Attack / User Authentication Method / Flow Analysis / Network Management / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 489, IA2012-99, pp. 151-156, March 2013.
Paper # IA2012-99 
Date of Issue 2013-03-07 (SITE, IA) 
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 SITE2012-61 IA2012-99

Conference Information
Committee IA SITE IPSJ-IOT  
Conference Date 2013-03-14 - 2013-03-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Todaiji Total Cultural Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Internet and Information Ethics Education, etc. 
Paper Information
Registration To IA 
Conference Code 2013-03-IA-SITE-IOT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Identifying User Authentication Methods on SSH Sessions 
Sub Title (in English)  
Keyword(1) Secure Shell  
Keyword(2) SSH Dictionary Attack  
Keyword(3) User Authentication Method  
Keyword(4) Flow Analysis  
Keyword(5) Network Management  
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1st Author's Name Akihiro Satoh  
1st Author's Affiliation Kyushu Institute of Technology (Kyushu Inst. of Tech.)
2nd Author's Name Yutaka Nakamura  
2nd Author's Affiliation Kyushu Institute of Technology (Kyushu Inst. of Tech.)
3rd Author's Name Takeshi Ikenaga  
3rd Author's Affiliation Kyushu Institute of Technology (Kyushu Inst. of Tech.)
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Speaker Author-1 
Date Time 2013-03-15 10:00:00 
Presentation Time 25 minutes 
Registration for IA 
Paper # SITE2012-61, IA2012-99 
Volume (vol) vol.112 
Number (no) no.488(SITE), no.489(IA) 
Page pp.151-156 
#Pages
Date of Issue 2013-03-07 (SITE, IA) 


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