| Presentation | 2017-03-09 The Security of 3-Round RSA-OAEP against Related-Key Attacks Gembu Ito, Hiraku Morita, Tetsu Iwata, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In 2013, Jia et al. proved that RSA-OAEP is secure against related-key attacks with respect to affine functions.In related-key attacks, which is formalized by Bellare and Kohno, the function that the adversary can apply to the key (related-key derivation functions) considers its domain and range as the secret key space.However, because the adversary does not know the secret key space of the RSA, it is not appropriate to use the related-key derivation function as it has been defined.We solve this problem by extending the domain and range to a set with appropriate operations that contains the secret key space as a subset.In this paper, we revise the definition of the related key derivation function and prove that the RSA using 3-Round OAEP is secure against related-key attacks with respect to affine functions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | related-key attack / RSA / OAEP |
| Paper # | IT2016-101,ISEC2016-91,WBS2016-77 |
| Date of Issue | 2017-03-02 (IT, ISEC, WBS) |
| Conference Information | |
| Committee | ISEC / WBS / IT |
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| Conference Date | 2017/3/9(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | TOKAI University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | joint meeting of IT, ISEC, and WBS |
| Chair | Masahiro Mambo(Kanazawa Univ.) / Fumiaki Maehara(Waseda Univ.) / Masayoshi Ohashi(Fukuoka Univ.) |
| Vice Chair | Kazuto Ogawa(NHK) / Atsushi Fujioka(Kanagawa Univ.) / Masanori Hamamura(Kochi Univ. of Tech.) / Fumie Ono(NICT) / Jun Muramatsu(NTT) |
| Secretary | Kazuto Ogawa(Toshiba) / Atsushi Fujioka(Tohoku Univ.) / Masanori Hamamura(Tokyo City Univ.) / Fumie Ono(Mitsubishi Electric) / Jun Muramatsu(Wakayama Univ.) |
| Assistant | Toshihiro Ohigashi(Tokai Univ.) / Yuuji Suga(IIJ) / Atsuo Inomata(Tokyo Denki Univ.) / Yusuke Kozawa(Tokyo Univ. of Science) / Akira Nakamura(Tokyo Univ. of Science) / Ryohei Nakamura(National Defense Academy) / Mitsugu Iwamoto(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Information Security / Technical Committee on Wideband System / Technical Committee on Information Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The Security of 3-Round RSA-OAEP against Related-Key Attacks |
| Sub Title (in English) | |
| Keyword(1) | related-key attack |
| Keyword(2) | RSA |
| Keyword(3) | OAEP |
| 1st Author's Name | Gembu Ito |
| 1st Author's Affiliation | Nagoya University(Nagoya Univ.) |
| 2nd Author's Name | Hiraku Morita |
| 2nd Author's Affiliation | Nagoya University(Nagoya Univ.) |
| 3rd Author's Name | Tetsu Iwata |
| 3rd Author's Affiliation | Nagoya University(Nagoya Univ.) |
| Date | 2017-03-09 |
| Paper # | IT2016-101,ISEC2016-91,WBS2016-77 |
| Volume (vol) | vol.116 |
| Number (no) | IT-504,ISEC-505,WBS-506 |
| Page | pp.pp.15-22(IT), pp.15-22(ISEC), pp.15-22(WBS), |
| #Pages | 8 |
| Date of Issue | 2017-03-02 (IT, ISEC, WBS) |