| Presentation | 2018-11-22 Identification Scheme Based on the Binary Syndrome Decoding Problem Using High Density Parity Check Codes Haruka Ito, Masanori Hirotomo, Youji Fukuta, Masami Mohri, Yoshiaki Shiraishi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Most of the currently used identification schemes can not be safely used if factoring factorization and discrete logarithm problem are solved efficiently.In response to such problems, many identification schemes having tolerance have been proposed.Although there is an improved scheme to reduce the key size by using the public matrix having the cyclic structure, various attack algorithms have been proposed with the cyclic structure as a weak point.In this paper, we propose an identification scheme that has tolerance and small key size and computational complexity.The key size is reduced by making the parity check matrix of the public key a matrix composed of blocks of cyclic matrices of a plurality of stages.In order to cope with existing attacks with a weak point in the cyclic structure, the cyclic structure is eliminated for the entire codeword. Furthermore, we show that the calculation matrix can be reduced by making the public matrix dense.We also evaluate the security level, key size, computational complexity and safety of the proposed scheme. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | zero knowledge proof identification / syndrome decoding problem / high density parity check codes / post quantum |
| Paper # | ICSS2018-62 |
| Date of Issue | 2018-11-14 (ICSS) |
| Conference Information | |
| Committee | ICSS |
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| Conference Date | 2018/11/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yoshiaki Shiraishi(Kobe Univ.) |
| Vice Chair | Hiroki Takakura(NII) / Katsunari Yoshioka(Yokohama National Univ.) |
| Secretary | Hiroki Takakura(NTT) / Katsunari Yoshioka(NICT) |
| Assistant | Akira Yamada(KDDI labs.) / Keisuke Kito(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Information and Communication System Security |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Identification Scheme Based on the Binary Syndrome Decoding Problem Using High Density Parity Check Codes |
| Sub Title (in English) | |
| Keyword(1) | zero knowledge proof identification |
| Keyword(2) | syndrome decoding problem |
| Keyword(3) | high density parity check codes |
| Keyword(4) | post quantum |
| 1st Author's Name | Haruka Ito |
| 1st Author's Affiliation | Saga University(Saga Univ.) |
| 2nd Author's Name | Masanori Hirotomo |
| 2nd Author's Affiliation | Saga University(Saga Univ.) |
| 3rd Author's Name | Youji Fukuta |
| 3rd Author's Affiliation | Kindai University(Kindai Univ.) |
| 4th Author's Name | Masami Mohri |
| 4th Author's Affiliation | Gifu University(Gifu Univ.) |
| 5th Author's Name | Yoshiaki Shiraishi |
| 5th Author's Affiliation | Kobe University(Kobe Univ.) |
| Date | 2018-11-22 |
| Paper # | ICSS2018-62 |
| Volume (vol) | vol.118 |
| Number (no) | ICSS-315 |
| Page | pp.pp.49-54(ICSS), |
| #Pages | 6 |
| Date of Issue | 2018-11-14 (ICSS) |