| Presentation | 2019-03-08 A Private PEZ Protocol of 4-Input Majority Vote with 29 PEZ Candies Yoshiki Abe, Shota Yamamoto, Mitsugu Iwamoto, Kazuo Ohta, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Secure multi-party computation can be implemented by using a (big) PEZ dispenser, which is called as a ￥textit{private PEZ protocol}. In the original Balogh et al.'s paper, a protocol for computing an arbitrary function was presented by using a huge number of candies. For instance, 6941 candies are necessary for computing an ￥textit{arbitrary} function with 4 inputs. However, we can reduce the number of candies if we design a protocol for calculating a ￥textit{specific} function. Actually, Yamamoto et al.￥ proposed a private PEZ protocol with 107 candies for computing 4-input majority vote. This protocol is obtained by carefully analyzing the private PEZ protocol for 3-input majority vote with 13 candies providedin the Balogh et al.'s paper without any derivation. This analysis tells us that the protocol is obtained recursively. Using this structure, we show in this paper that the numberof candies can further be reduced and only 29 candies are sufficient for the 4-input majority vote. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Multi-party computation / Private PEZ protocol |
| Paper # | IT2018-111,ISEC2018-117,WBS2018-112 |
| Date of Issue | 2019-02-28 (IT, ISEC, WBS) |
| Conference Information | |
| Committee | IT / ISEC / WBS |
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| Conference Date | 2019/3/7(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | University of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | joint meeting of IT, ISEC, and WBS |
| Chair | Jun Muramatsu(NTT) / Atsushi Fujioka(Kanagawa Univ.) / Minoru Okada(NAIST) |
| Vice Chair | Tadashi Wadayama(Nagoya Inst. of Tech.) / Shiho Moriai(NICT) / Shoichi Hirose(Univ. of Fukui) / Koji Ohuchi(Shizuoka Univ.) / Kenichi Takizawa(NICT) |
| Secretary | Tadashi Wadayama(Nagano Pref Inst. of Tech.) / Shiho Moriai(UEC) / Shoichi Hirose(Tokai Univ.) / Koji Ohuchi(NICT) / Kenichi Takizawa(Ibaraki Univ.) |
| Assistant | Takahiro Yoshida(Yokohama College of Commerce) / Kazunari Omote(Tsukuba Univ.) / Yuuji Suga(IIJ) / Ryohei Nakamura(National Defense Academy) / Duong Quang Thang(NAIST) |
| Paper Information | |
| Registration To | Technical Committee on Information Theory / Technical Committee on Information Security / Technical Committee on Wideband System |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Private PEZ Protocol of 4-Input Majority Vote with 29 PEZ Candies |
| Sub Title (in English) | |
| Keyword(1) | Multi-party computation |
| Keyword(2) | Private PEZ protocol |
| 1st Author's Name | Yoshiki Abe |
| 1st Author's Affiliation | The University of Electro-Communications(UEC) |
| 2nd Author's Name | Shota Yamamoto |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC) |
| 3rd Author's Name | Mitsugu Iwamoto |
| 3rd Author's Affiliation | The University of Electro-Communications(UEC) |
| 4th Author's Name | Kazuo Ohta |
| 4th Author's Affiliation | The University of Electro-Communications(UEC) |
| Date | 2019-03-08 |
| Paper # | IT2018-111,ISEC2018-117,WBS2018-112 |
| Volume (vol) | vol.118 |
| Number (no) | IT-477,ISEC-478,WBS-479 |
| Page | pp.pp.223-228(IT), pp.223-228(ISEC), pp.223-228(WBS), |
| #Pages | 6 |
| Date of Issue | 2019-02-28 (IT, ISEC, WBS) |