Presentation | 2017-05-12 A Note on the Numbers of Cards Required to Make Copied Commitments Daiki Miyahara, Yu-ichi Hayashi, Takaaki Mizuki, Hideaki Sone, |
---|---|
PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | Card-based cryptography performs secure multi-party computation with black and red cards. Usually, a Boolean value is encoded based on the order of a black card and a red card; such a pair of face-down cards is called a commitment to the corresponding bit. A copy protocol makes $n$ commitments from an input commitment. This paper shows lower bounds on the numbers of cards for performing copy. Specifically, we show that it is impossible to construct a copy protocol with $2n$ cards. Furthermore, we show that there is no finite-runtime copy protocol with $2n+1$ cards. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Card-Based Cryptography / Secure Multi-Party Computation / Deck of Cards / Card games |
Paper # | ISEC2017-3 |
Date of Issue | 2017-05-05 (ISEC) |
Conference Information | |
Committee | ISEC |
---|---|
Conference Date | 2017/5/12(1days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | Kikai-Shinko-Kaikan Bldg. |
Topics (in Japanese) | (See Japanese page) |
Topics (in English) | |
Chair | Masahiro Mambo(Kanazawa Univ.) |
Vice Chair | Kazuto Ogawa(NHK) / Atsushi Fujioka(Kanagawa Univ.) |
Secretary | Kazuto Ogawa(Toshiba) / Atsushi Fujioka(Tohoku Univ.) |
Assistant | Toshihiro Ohigashi(Tokai Univ.) / Yuuji Suga(IIJ) / Atsuo Inomata(Tokyo Denki Univ.) |
Paper Information | |
Registration To | Technical Committee on Information Security |
---|---|
Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | A Note on the Numbers of Cards Required to Make Copied Commitments |
Sub Title (in English) | |
Keyword(1) | Card-Based Cryptography |
Keyword(2) | Secure Multi-Party Computation |
Keyword(3) | Deck of Cards |
Keyword(4) | Card games |
1st Author's Name | Daiki Miyahara |
1st Author's Affiliation | Tohoku University(Tohoku Univ.) |
2nd Author's Name | Yu-ichi Hayashi |
2nd Author's Affiliation | Nara Institute of Science and Technology(NAIST) |
3rd Author's Name | Takaaki Mizuki |
3rd Author's Affiliation | Tohoku University(Tohoku Univ.) |
4th Author's Name | Hideaki Sone |
4th Author's Affiliation | Tohoku University(Tohoku Univ.) |
Date | 2017-05-12 |
Paper # | ISEC2017-3 |
Volume (vol) | vol.117 |
Number (no) | ISEC-25 |
Page | pp.pp.15-22(ISEC), |
#Pages | 8 |
Date of Issue | 2017-05-05 (ISEC) |