Presentation | 2010-11-18 Sample Investigation and the Consideration to Compromising Cryptosystems in SSL Seiji TAKANO, Ryota SATO, Kenichiro MUTO, Sakae CHIKARA, Masayuki KANDA, Yoshiaki SEKI, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(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) |
Keyword(in English) | Compromising Cryptosystems / SSL / Cryptographic algorithm / Browser / Server |
Paper # | ISEC2010-59,LOIS2010-38 |
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Committee | ISEC |
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Conference Date | 2010/11/10(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Information Security (ISEC) |
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Language | JPN |
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 |
1st Author's Name | Seiji TAKANO |
1st Author's Affiliation | University of Electro-Communications() |
2nd Author's Name | Ryota SATO |
2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation |
3rd Author's Name | Kenichiro MUTO |
3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation |
4th Author's Name | Sakae CHIKARA |
4th Author's Affiliation | Nippon Telegraph and Telephone Corporation |
5th Author's Name | Masayuki KANDA |
5th Author's Affiliation | Nippon Telegraph and Telephone Corporation |
6th Author's Name | Yoshiaki SEKI |
6th Author's Affiliation | Nippon Telegraph and Telephone Corporation |
Date | 2010-11-18 |
Paper # | ISEC2010-59,LOIS2010-38 |
Volume (vol) | vol.110 |
Number (no) | 281 |
Page | pp.pp.- |
#Pages | 8 |
Date of Issue |