| Presentation | 2022-11-18 Security Proof and Parameters for a Lattice-based Fuzzy Signature Scheme Yuichi Hasegawa, Shingo Sato, Junji Shikata, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, password-based authentication is often used for entity authentication of systems. However, because recently cyber-attacks become more sophisticated, it is not easy to securely manage systems only by users’ passwords. Traditionally, biometric authentication techniques using biometric information such as fingerprints and iris have been developed as well as authentication based on some secret information such as passwords. In this paper, we focus on a fuzzy signature scheme, which is an effective technique that provides authentication of systems based on both biometric information and cryptographic schemes and has applications including ATM for people having a single device. This paper provides a formal security definition for the lattice-based fuzzy signature construction proposed by Kaafarani and Katsumata, and proposes a variant of their constructions with a formal security proof, and analyzes security parameter sizes required in the proposed scheme. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Digital Signatures / Fuzzy Signatures / Lattice-based cryptography |
| Paper # | ISEC2022-45,SITE2022-49,LOIS2022-29 |
| Date of Issue | 2022-11-11 (ISEC, SITE, LOIS) |
| Conference Information | |
| Committee | ISEC / SITE / LOIS |
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| Conference Date | 2022/11/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Noboru Kunihiro(Tsukuba Univ.) / Takushi Otani(Kibi International Univ.) / Hiroyuki Toda(NTT) |
| Vice Chair | Junji Shikata(Yokohama National Univ.) / Goichiro Hanaoka(AIST) / Soichiro Morishita(Cyber Agent) / Takeo Tatsumi(Open Univ. of Japan) / Manabu Motegi(Takushoku Univ.) |
| Secretary | Junji Shikata(AIST) / Goichiro Hanaoka(Ibaraki Univ.) / Soichiro Morishita(NRI-Secure) / Takeo Tatsumi(Hokuriku Univ.) / Manabu Motegi(Nagasaki Univ.) |
| Assistant | Yoshikazu Hanatani(Toshiba) / Yusuke Tachibana(Fukuoka Inst. of Tech.) / Mana Sasagawa(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Information Security / Technical Committee on Social Implications of Technology and Information Ethics / Technical Committee on Life Intelligence and Office Information Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Security Proof and Parameters for a Lattice-based Fuzzy Signature Scheme |
| Sub Title (in English) | |
| Keyword(1) | Digital Signatures |
| Keyword(2) | Fuzzy Signatures |
| Keyword(3) | Lattice-based cryptography |
| 1st Author's Name | Yuichi Hasegawa |
| 1st Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| 2nd Author's Name | Shingo Sato |
| 2nd Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| 3rd Author's Name | Junji Shikata |
| 3rd Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| Date | 2022-11-18 |
| Paper # | ISEC2022-45,SITE2022-49,LOIS2022-29 |
| Volume (vol) | vol.122 |
| Number (no) | ISEC-258,SITE-259,LOIS-260 |
| Page | pp.pp.92-99(ISEC), pp.92-99(SITE), pp.92-99(LOIS), |
| #Pages | 8 |
| Date of Issue | 2022-11-11 (ISEC, SITE, LOIS) |