Presentation 2017-03-14
A system architecture that prevents fraud issue using third parties to issue authentication information
Masahiro Matsui, Akira Nagai, Tetsutaro Kobayashi, Hironobu Okuyama,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Nowadays, the leakages of authentication information such as password from web service are happened frequently. MILAGRO-MFA is user authentication that third parties issue user’s secret key and servicer can authenticate users without user’s authentication information. MILAGRO-MFA could prevent the leakages. However, on the previous key issue method of MILAGRO-MFA, servicer has to make issue request by key that the servicer holds. So, if an adversary gets or misuses the key for the issue request, he can issue user’s secret key freely. In this paper, I add a new server “issue request authority” to the previous system architecture of MILAGRO-MFA. I propose a new system architecture which user’s secret key is issued when a servicer and issue request authorities make an issue request. Then, I evaluate the safety of the proposal system architecture. As a result, the proposed system architecture has the safety of prevention of issue request that an adversary issue.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) authentication system / authentication information / information leakage / issue / third party / system architecture
Paper # ICSS2016-72
Date of Issue 2017-03-06 (ICSS)

Conference Information
Committee ICSS / IPSJ-SPT
Conference Date 2017/3/13(2days)
Place (in Japanese) (See Japanese page)
Place (in English) University of Nagasaki
Topics (in Japanese) (See Japanese page)
Topics (in English) System Security, etc.
Chair Yutaka Miyake(KDDI R&D Labs.)
Vice Chair Yoshiaki Shiraishi(Kobe Univ.) / Takeshi Ueda(Mitsubishi Electric)
Secretary Yoshiaki Shiraishi(NII) / Takeshi Ueda(Yokohama National Univ.)
Assistant Kazunori Kamiya(NTT) / Takahiro Kasama(NICT)

Paper Information
Registration To Technical Committee on Information and Communication System Security / Special Interest Group on Security Psychology and Trust
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A system architecture that prevents fraud issue using third parties to issue authentication information
Sub Title (in English)
Keyword(1) authentication system
Keyword(2) authentication information
Keyword(3) information leakage
Keyword(4) issue
Keyword(5) third party
Keyword(6) system architecture
1st Author's Name Masahiro Matsui
1st Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
2nd Author's Name Akira Nagai
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
3rd Author's Name Tetsutaro Kobayashi
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
4th Author's Name Hironobu Okuyama
4th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
Date 2017-03-14
Paper # ICSS2016-72
Volume (vol) vol.116
Number (no) ICSS-522
Page pp.pp.195-200(ICSS),
#Pages 6
Date of Issue 2017-03-06 (ICSS)