| Presentation | 2021-07-19 Evaluation on Biometric Template Protection System Based on Somewhat Homomorphic Encryption Hiroto Tamiya, Toshiyuki Isshiki, Kengo Mori, Satoshi Obana, Tetsushi Ohki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Many biometric template protection systems have been proposed to perform biometric authentication while keeping the biometric information secret. While most homomorphic encryption schemes encrypt integers, most face recognition algorithms output floating-point features. Therefore, we need to convert floating-point features to integer features. Ohki et al. have reported the quantization precision that does not affect the biometric performance for face recognition algorithms based on principal component analysis. In this paper, we evaluate quantization precisions that does not affect the biometric performance for face recognition algorithms based on machine learning and show the quantization precisions are about 5 bits. In addition, we evaluate running time of a biometric template protection system based on lattice-based somewhat homomorphic encryption, using integer features transformed with the quantization precision that does not affect the authentication accuracy, and show the authentication time is less than 50 ms. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | face recognition / quantization / biometric template protection / lattice-based cryptography / packing method / Euclidean distance |
| Paper # | ISEC2021-21,SITE2021-15,BioX2021-22,HWS2021-21,ICSS2021-26,EMM2021-26 |
| Date of Issue | 2021-07-12 (ISEC, SITE, BioX, HWS, ICSS, EMM) |
| Conference Information | |
| Committee | BioX / ISEC / SITE / ICSS / EMM / HWS / IPSJ-CSEC / IPSJ-SPT |
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| Conference Date | 2021/7/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hitoshi Imaoka(NEC) / Tetsuya Izu(Fujitsu Labs.) / Masaru Ogawa(Kobe Gakuin Univ.) / Katsunari Yoshioka(Yokohama National Univ.) / Ryoichi Nishimura(NICT) / Yasuhisa Shimazaki(Renesas Electronics) |
| Vice Chair | Masatsugu Ichino(Univ. of Electro-Comm.) / Naoyuki Takada(SECOM) / Noboru Kunihiro(Tsukuba Univ.) / Goichiro Hanaoka(AIST) / Takushi Otani(Kibi International Univ.) / Takeo Tatsumi(Open Univ. of Japan) / Kazunori Kamiya(NTT) / Takahiro Kasama(NICT) / Masaaki Fujiyoshi(Tokyo Metropolitan Univ.) / Masatsugu Ichino(Univ. of Electro-Comm.) / Makoto Nagata(Kobe Univ.) / Daisuke Suzuki(Mitsubishi Electric) |
| Secretary | Masatsugu Ichino(KDDI Research) / Naoyuki Takada(MitsubishiElectric) / Noboru Kunihiro(Fujitsu Labs.) / Goichiro Hanaoka(Ibaraki Univ.) / Takushi Otani(Yamaguchi Pref Univ.) / Takeo Tatsumi(Hokuriku Univ.) / Kazunori Kamiya(KDDI labs.) / Takahiro Kasama(Okayama Univ.) / Masaaki Fujiyoshi(Utsunomiya Univ.) / Masatsugu Ichino(NICT) / Makoto Nagata(NTT) / Daisuke Suzuki(NAIST) |
| Assistant | Hiroyuki Suzuki(Gunma Univ) / Akihiro Hayasaka(NEC) / Takahiro Matsuda(AIST) / Hideyuki Fujii(NRI-Secure) / Yusuke Tachibana(Fukuoka Inst. of Tech.) / Keisuke Kito(Mitsubishi Electric) / Takeshi Sugawara(Univ. of Electro-Comm.) / Shoko Imaizumi(Chiba Univ.) / Youichi Takashima(Kaishi Professional Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Biometrics / Technical Committee on Information Security / Technical Committee on Social Implications of Technology and Information Ethics / Technical Committee on Information and Communication System Security / Technical Committee on Enriched MultiMedia / Technical Committee on Hardware Security / Special Interest Group on Computer Security / Special Interest Group on Security Psychology and Trust |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation on Biometric Template Protection System Based on Somewhat Homomorphic Encryption |
| Sub Title (in English) | |
| Keyword(1) | face recognition |
| Keyword(2) | quantization |
| Keyword(3) | biometric template protection |
| Keyword(4) | lattice-based cryptography |
| Keyword(5) | packing method |
| Keyword(6) | Euclidean distance |
| 1st Author's Name | Hiroto Tamiya |
| 1st Author's Affiliation | NEC Corporation(NEC) |
| 2nd Author's Name | Toshiyuki Isshiki |
| 2nd Author's Affiliation | NEC Corporation(NEC) |
| 3rd Author's Name | Kengo Mori |
| 3rd Author's Affiliation | NEC Corporation(NEC) |
| 4th Author's Name | Satoshi Obana |
| 4th Author's Affiliation | Hosei University(Hosei Univ.) |
| 5th Author's Name | Tetsushi Ohki |
| 5th Author's Affiliation | Shizuoka University(Shizuoka Univ.) |
| Date | 2021-07-19 |
| Paper # | ISEC2021-21,SITE2021-15,BioX2021-22,HWS2021-21,ICSS2021-26,EMM2021-26 |
| Volume (vol) | vol.121 |
| Number (no) | ISEC-118,SITE-119,BioX-120,HWS-121,ICSS-122,EMM-123 |
| Page | pp.pp.68-73(ISEC), pp.68-73(SITE), pp.68-73(BioX), pp.68-73(HWS), pp.68-73(ICSS), pp.68-73(EMM), |
| #Pages | 6 |
| Date of Issue | 2021-07-12 (ISEC, SITE, BioX, HWS, ICSS, EMM) |