Presentation 2016-07-15
Algebraic Surface Cryptosystems using Polynomial Approximate GCD
Yuichi Komano, Koichiro Akiyama, Yasuhiro Goto, Koji Nuida, Goichiro Hanaoka,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Since the original proposal in 2004, several attacks have been reported against algebraic surface cryptosystems. This report proposes a new construction (possibly) resistant to these attacks. Achieving such resistance, our proposal adds a new low-degree random polynomial, in addition to another random polynomial as in the previous constructions. In decryption, a user uses a secret key (section on the algebraic surface) to remove the latter random polynomial and then he recovers a plaintext free from the former low-degree random polynomial by calculating polynomial approximate GCD. The security of our proposal is based on a decision problem defined in this report; however, the estimation of its difficulty still remains as a future work.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) post quantum cryptography / algebraic surface / polynomial approximate GCD
Paper # ISEC2016-35,SITE2016-29,ICSS2016-35,EMM2016-43
Date of Issue 2016-07-07 (ISEC, SITE, ICSS, EMM)

Conference Information
Committee EMM / ISEC / SITE / ICSS / IPSJ-CSEC / IPSJ-SPT
Conference Date 2016/7/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English) security, etc
Chair Akinori Ito(Tohoku Univ.) / Masahiro Mambo(Kanazawa Univ.) / Hitoshi Okada(NII) / Yutaka Miyake(KDDI R&D Labs.)
Vice Chair Masaki Kawamura(Yamaguchi Univ.) / Hirohisa Hioki(Kyoto Univ.) / Kazuto Ogawa(NHK) / Atsushi Fujioka(Kanagawa Univ.) / Tetsuya Morizumi(Kanagawa Univ.) / Masaru Ogawa(Kobe Gakuin Univ.) / Yoshiaki Shiraishi(Kobe Univ.) / Takeshi Ueda(Mitsubishi Electric)
Secretary Masaki Kawamura(Nagasaki Univ.) / Hirohisa Hioki(Osaka Pref. Univ.) / Kazuto Ogawa(Toshiba) / Atsushi Fujioka(Tohoku Univ.) / Tetsuya Morizumi(Kyushu Univ.) / Masaru Ogawa(Gifu Shotoku Gakuen Univ.) / Yoshiaki Shiraishi(NII) / Takeshi Ueda(Yokohama National Univ.)
Assistant Rui Shogenji(Shizuoka Univ.) / Masaaki Fujiyoshi(Tokyo Metropolitan Univ.) / Toshihiro Ohigashi(Tokai Univ.) / Yuuji Suga(IIJ) / Atsuo Inomata(Tokyo Denki Univ.) / Kanako Kawaguchi(Tokyo Univ. of the Arts) / Kazunori Kamiya(NTT) / Takahiro Kasama(NICT)

Paper Information
Registration To Technical Committee on Enriched MultiMedia / Technical Committee on Information Security / Technical Committee on Social Implications of Technology and Information Ethics / Technical Committee on Information and Communication System Security / Special Interest Group on Computer 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) Algebraic Surface Cryptosystems using Polynomial Approximate GCD
Sub Title (in English)
Keyword(1) post quantum cryptography
Keyword(2) algebraic surface
Keyword(3) polynomial approximate GCD
1st Author's Name Yuichi Komano
1st Author's Affiliation Toshiba Corporation(Toshiba)
2nd Author's Name Koichiro Akiyama
2nd Author's Affiliation Toshiba Corporation(Toshiba)
3rd Author's Name Yasuhiro Goto
3rd Author's Affiliation Hokkaido University of Education(Hokkaido Univ. of Education)
4th Author's Name Koji Nuida
4th Author's Affiliation National Institute of Advanced Industrial Science and Technology(AIST)
5th Author's Name Goichiro Hanaoka
5th Author's Affiliation National Institute of Advanced Industrial Science and Technology(AIST)
Date 2016-07-15
Paper # ISEC2016-35,SITE2016-29,ICSS2016-35,EMM2016-43
Volume (vol) vol.116
Number (no) ISEC-129,SITE-130,ICSS-131,EMM-132
Page pp.pp.217-222(ISEC), pp.217-222(SITE), pp.217-222(ICSS), pp.217-222(EMM),
#Pages 6
Date of Issue 2016-07-07 (ISEC, SITE, ICSS, EMM)