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Paper Abstract and Keywords
Presentation 2010-11-18 09:00
Sample Investigation and the Consideration to Compromising Cryptosystems in SSL
Seiji Takano (UEC), Ryota Sato, Kenichiro Muto, Sakae Chikara, Masayuki Kanda, Yoshiaki Seki (NTT) ISEC2010-59 LOIS2010-38
Abstract (in Japanese) (See Japanese page) 
(in English) In the information society, the encryption technology is indispensable. The improvement of computer performance causes the decrease of the cipher strength, because the safety of the cipher is based on the difficulty of the decipherment calculation. Therefore, shifting to next generation's code is important. Japanese government also will aim at the shift of the cipher in GPKI by 2013, like the cipher shift problem 2010 of the United States. In this paper, we focused SSL that a lot of people are using, and have investigated web servers of finance and government organizations, for which high security are expected. Comparing with the previous investigation, the cipher used for the certificate has been changed. However, it turned out not to have changed the cipher selected by the negotiation on the server side and the browser side. Moreover, it was able to be confirmed that the server side might selected the code disregarding the priority level of the cipher list that the browser side presented. This comparative verification is considered from both the server side and the browser side aspects. And, the problem that both the server side and the browser side measures are necessary for the generation change of the cipher is instituted.
Keyword (in Japanese) (See Japanese page) 
(in English) Compromising Cryptosystems / SSL / Cryptographic algorithm / Browser / Server / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 282, LOIS2010-38, pp. 65-72, Nov. 2010.
Paper # LOIS2010-38 
Date of Issue 2010-11-10 (ISEC, LOIS) 
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 ISEC2010-59 LOIS2010-38

Conference Information
Committee ISEC LOIS  
Conference Date 2010-11-17 - 2010-11-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Tsukuba Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To LOIS 
Conference Code 2010-11-ISEC-LOIS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Sample Investigation and the Consideration to Compromising Cryptosystems in SSL 
Sub Title (in English)  
Keyword(1) Compromising Cryptosystems  
Keyword(2) SSL  
Keyword(3) Cryptographic algorithm  
Keyword(4) Browser  
Keyword(5) Server  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Seiji Takano  
1st Author's Affiliation University of Electro-Communications (UEC)
2nd Author's Name Ryota Sato  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Kenichiro Muto  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Sakae Chikara  
4th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
5th Author's Name Masayuki Kanda  
5th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
6th Author's Name Yoshiaki Seki  
6th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2010-11-18 09:00:00 
Presentation Time 30 minutes 
Registration for LOIS 
Paper # ISEC2010-59, LOIS2010-38 
Volume (vol) vol.110 
Number (no) no.281(ISEC), no.282(LOIS) 
Page pp.65-72 
#Pages 8 
Date of Issue 2010-11-10 (ISEC, LOIS) 

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