| Presentation | 2016-03-10 Improved Key Rate of the Semi-Quantum Key Distribution Protocol Kento Yamada, Ryutaroh Matumoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The semi-quantum key distribution protocol(SQKD) is known as a secret key sharing method with information-theoretic security against an eavesdropper. The SQKD protocol is characterized in that the receiver is limited to performing "classical" or "semi-quantum" operations. A lower bound of key rate of the SQKD protocol is shown by Krawec, however its bound may not be tight. So we improve the key rate by minimization of von Neumann entropy, addition of convex optimization constraints and adding new information to be used in the information reconciliation. As a result of these three improvements, we show that the SQKD protocol can generate secure key at 11.9% depolarizing rate. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | quantum cryptgraphy / quantum key distribution / semi-quantum key distribution / SQKD |
| Paper # | IT2015-121,ISEC2015-80,WBS2015-104 |
| Date of Issue | 2016-03-03 (IT, ISEC, WBS) |
| Conference Information | |
| Committee | IT / ISEC / WBS |
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| Conference Date | 2016/3/10(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The University of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | joint meeting of IT, ISEC, and WBS |
| Chair | Yasutada Oohama(Univ. of Electro-Comm.) / Yukiyasu Tsunoo(NEC) / Hiromasa Habuchi(Ibaraki Univ.) |
| Vice Chair | Tadashi Wadayama(Nagoya Inst. of Tech.) / Masahiro Mambo(Kanazawa Univ.) / Kazuto Ogawa(NHK) / Fumiaki Maehara(Waseda Univ.) / Minoru Okada(NAIST) |
| Secretary | Tadashi Wadayama(Univ. of Electro-Comm.) / Masahiro Mambo(Wakayama Univ.) / Kazuto Ogawa(AIST) / Fumiaki Maehara(Toshiba) / Minoru Okada(Univ. of Kitakyushu) |
| Assistant | Takuya Kusaka(Okayama Univ.) / Tetsuya Izu(Fujitsu Lab.) / Takaaki Mizuki(Tohoku Univ.) / Noritaka Yamashita(NEC) / Yusuke Kozawa(Tokyo Univ. of Science) / Akira Nakamura(Tokyo Univ. of Science) / Ryohei Nakamura(National Defense Academy) |
| 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) | Improved Key Rate of the Semi-Quantum Key Distribution Protocol |
| Sub Title (in English) | |
| Keyword(1) | quantum cryptgraphy |
| Keyword(2) | quantum key distribution |
| Keyword(3) | semi-quantum key distribution |
| Keyword(4) | SQKD |
| 1st Author's Name | Kento Yamada |
| 1st Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 2nd Author's Name | Ryutaroh Matumoto |
| 2nd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| Date | 2016-03-10 |
| Paper # | IT2015-121,ISEC2015-80,WBS2015-104 |
| Volume (vol) | vol.115 |
| Number (no) | IT-500,ISEC-501,WBS-502 |
| Page | pp.pp.125-130(IT), pp.125-130(ISEC), pp.125-130(WBS), |
| #Pages | 6 |
| Date of Issue | 2016-03-03 (IT, ISEC, WBS) |