| Presentation | 2020-05-20 Isogeny based ring signature from CSIDH Taisei Kiyama, Koutarou Suzuki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | CSIDH (Castryck, Lange, Martindale, Panny and Renes, ASIACRYPT ’18) is proposed as a post-quan- tum cryptography using isogeny, and SeaSign (De Feo and Galbraith, EUROCRYPT ’19) is proposed as a post-quan- tum signature system based on CSIDH.In addition, Ring signature (Rivest, Shamir, Tauman, ASIACRYPT ’01) was proposed as an anonymous signature method, and the Ring signature (Abe, Ohkubo and Suzuki, ASIACRYPT ’02) based on the discrete logarithm problem was proposed.In this paper, we propose for the first time the Ring signature scheme using CSIDH by applying the Ring signature scheme based on the discrete logarithm problem to the SeaSign signature scheme. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | isogeny / CSIDH / post-quantum cryptography / SeaSign / Ring signature |
| Paper # | ISEC2020-1 |
| Date of Issue | 2020-05-13 (ISEC) |
| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2020/5/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Shiho Moriai(NICT) |
| Vice Chair | Shoichi Hirose(Univ. of Fukui) / Tetsuya Izu(Fujitsu Labs.) |
| Secretary | Shoichi Hirose(NICT) / Tetsuya Izu(Tsukuba Univ.) |
| Assistant | Dai Yamamoto(Fujitsu Labs.) / Yuuji Suga(IIJ) |
| Paper Information | |
| Registration To | Technical Committee on Information Security |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Isogeny based ring signature from CSIDH |
| Sub Title (in English) | |
| Keyword(1) | isogeny |
| Keyword(2) | CSIDH |
| Keyword(3) | post-quantum cryptography |
| Keyword(4) | SeaSign |
| Keyword(5) | Ring signature |
| 1st Author's Name | Taisei Kiyama |
| 1st Author's Affiliation | Toyohashi University of Technology(TUT) |
| 2nd Author's Name | Koutarou Suzuki |
| 2nd Author's Affiliation | Toyohashi University of Technology(TUT) |
| Date | 2020-05-20 |
| Paper # | ISEC2020-1 |
| Volume (vol) | vol.120 |
| Number (no) | ISEC-28 |
| Page | pp.pp.1-6(ISEC), |
| #Pages | 6 |
| Date of Issue | 2020-05-13 (ISEC) |