A DoS-Vulnerability Analysis of L2TP-VPN. - Atsushi Kara; Takahiro Suzuki; Kenta Takahashi; Masayuki Yoshikaw (CIT, 2004)

Mechanism-Based PKI - A Real-Time Key Generation from Fingerprints. - Yoichi Shibata; Masahiro Mimura; Kenta Takahashi; Masakatsu Nishigaki (Security and Management, 2006)

A study on biometric key generation from fingerprints: Fingerprint-key generation from stable feature value. - Yoichi Shibata; Masahiro Mimura; Kenta Takahashi; Masakatsu Nishigaki (Security and Management, 2007)

Cancelable Biometrics with Perfect Secrecy for Correlation-Based Matching. - Shinji Hirata; Kenta Takahashi (ICB, 2009)

A Proposal of Efficient Remote Biometric Authentication Protocol. - Taiki Sakashita; Yoichi Shibata; Takumi Yamamoto; Kenta Takahashi; Wakaha Ogata; Hiroaki Kikuchi; Masakatsu Nishigaki (IWSEC, 2009)

Accuracy improvement with high convenience in biometric identification using multihypothesis sequential probability ratio test. - Takao Murakami; Kenta Takahashi (WIFS, 2009)

A metric of identification performance of biometrics based on information content. - Seira Hidano; Tetsushi Ohki; Naohisa Komatsu; Kenta Takahashi (ICARCV, 2010)

Parameter management schemes for cancelable biometrics. - Kenta Takahashi; Shinji Hirata (CIBIM, 2011)

Fast and accurate biometric identification using score level indexing and fusion. - Takao Murakami; Kenta Takahashi (IJCB, 2011)

Unconditionally provably secure cancelable biometrics based on a quotient polynomial ring. - Kenta Takahashi (IJCB, 2011)

Versatile probability-based indexing for approximate similarity search. - Takao Murakami; Kenta Takahashi; Susumu Serita; Yasuhiro Fujii (SISAP, 2011)

Cancelable Biometrics with Provable Security and Its Application to Fingerprint Verification. - Kenta Takahashi; Shinji Hirata (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

Evaluation of security for biometric guessing attacks in biometric cryptosystem using fuzzy commitment scheme. - Seira Hidano; Tetsushi Ohki; Kenta Takahashi (BIOSIG, 2012)

Towards optimal countermeasures against wolves and lambs in biometrics. - Takao Murakami; Kenta Takahashi; Kanta Matsuura (BTAS, 2012)

Unconditionally provably secure cancellable biometrics based on a quotient polynomial ring. - Kenta Takahashi; Ken Naganuma (IET Biom., 2012)

Probabilistic enhancement of approximate indexing in metric spaces. - Takao Murakami; Kenta Takahashi; Susumu Serita; Yasuhiro Fujii (Inf. Syst., 2013)

A General Framework and Algorithms for Score Level Indexing and Fusion in Biometric Identification. - Takao Murakami; Kenta Takahashi; Kanta Matsuura (IEICE Trans. Inf. Syst., 2014)

A measure of information gained through biometric systems. - Kenta Takahashi; Takao Murakami (Image Vis. Comput., 2014)

Toward Optimal Fusion Algorithms With Security Against Wolves and Lambs in Biometrics. - Takao Murakami; Kenta Takahashi; Kanta Matsuura (IEEE Trans. Inf. Forensics Secur., 2014)

A Signature Scheme with a Fuzzy Private Key. - Kenta Takahashi; Takahiro Matsuda 002; Takao Murakami; Goichiro Hanaoka; Masakatsu Nishigaki (ACNS, 2015)

Information-theoretic performance evaluation of likelihood-ratio based biometric score fusion under modality selection attacks. - Takao Murakami; Kenta Takahashi (BTAS, 2015)

Development of Microwave Kinetic Inductance Detector for Cosmological Observations. - Kenichi Karatsu; Satoru Mima; Shugo Oguri; Jihoon Choi; R. M. Thushara Damayanthi; Agnes Dominjon; Noboru Furukawa; Hirokazu Ishino; Hikaru Ishitsuka; Atsuko Kibayashi; Yoshiaki Kibe; Hitoshi Kiuchi; et al. (IEICE Trans. Electron., 2015)

Fuzzy Signatures: Relaxing Requirements and a New Construction. - Takahiro Matsuda 002; Kenta Takahashi; Takao Murakami; Goichiro Hanaoka (ACNS, 2016)

Secure Communication Protocol Between a Human and a Bank Server for Preventing Man-in-the-Browser Attacks. - Takashi Tsuchiya; Masahiro Fujita; Kenta Takahashi; Takehisa Kato; Fumihiko Magata; Yoshimi Teshigawara; Ryôichi Sasaki; Masakatsu Nishigaki (HCI (20), 2016)

Effective color correction pipeline for a noisy image. - Kenta Takahashi; Yusuke Monno; Masayuki Tanaka 001; Masatoshi Okutomi (ICIP, 2016)

On restricting modalities in likelihood-ratio based biometric score fusion. - Takao Murakami; Yosuke Kaga; Kenta Takahashi (ICPR, 2016)

Evaluation method of fabrics by visual and tactile texture information using MEMS combo sensor. - Kenta Takahashi; Takashi Abe; Masayuki Sohgawa; Masanori Okuyama; Haruo Noma (IEEE SENSORS, 2016)

A Micro Biometric Authentication Mechanism Considering Minute Patterns of the Human Body: A Proposal and the First Attempt. - Masahiro Fujita; Yuto Mano; Takuya Kaneko; Kenta Takahashi; Masakatsu Nishigaki (NBiS, 2016)

Information-Theoretic Performance Evaluation of Multibiometric Fusion under Modality Selection Attacks. - Takao Murakami; Yosuke Kaga; Kenta Takahashi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016)

Optimal sequential fusion for multibiometric cryptosystems. - Takao Murakami; Tetsushi Ohki; Kenta Takahashi (Inf. Fusion, 2016)

A Secure and Practical Signature Scheme for Blockchain Based on Biometrics. - Yosuke Kaga; Masakazu Fujio; Ken Naganuma; Kenta Takahashi; Takao Murakami; Tetsushi Ohki; Masakatsu Nishigaki (ISPEC, 2017)

Signature Schemes with a Fuzzy Private Key. - Kenta Takahashi; Takahiro Matsuda 002; Takao Murakami; Goichiro Hanaoka; Masakatsu Nishigaki (IACR Cryptol. ePrint Arch., 2017)

Modality Selection Attacks and Modality Restriction in Likelihood-Ratio Based Biometric Score Fusion. - Takao Murakami; Yosuke Kaga; Kenta Takahashi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2017)

A Generalization of the Theory of Biometric System Entropy. - Kenta Takahashi; Takao Murakami (APSIPA, 2018)

Face/Fingerphoto Spoof Detection under Noisy Conditions by using Deep Convolutional Neural Network. - Masakazu Fujio; Yosuke Kaga; Takao Murakami; Tetsushi Ohki; Kenta Takahashi (BIOSIGNALS, 2018)

On the Security of Linear Sketch Schemes against Recovering Attacks. - Takahiro Matsuda 002; Kenta Takahashi; Goichiro Hanaoka (ICETE (2), 2018)

Hand Segmentation for Contactless Palmprint Recognition. - Yusei Suzuki; Hiroya Kawai; Koichi Ito 001; Takafumi Aoki; Masakazu Fujio; Yosuke Kaga; Kenta Takahashi (ACPR (1), 2019)

Security and Efficiency of Biometric Template Protection for Identification. - Wataru Nakamura; Yosuke Kaga; Masakazu Fujio; Kenta Takahashi (APSIPA, 2019)

PDH : Probabilistic Deep Hashing Based on Map Estimation of Hamming Distance. - Yosuke Kaga; Masakazu Fujio; Kenta Takahashi; Tetsushi Ohki; Masakatsu Nishigaki (ICIP, 2019)

Cancelable Permutation-Based Indexing for Secure and Efficient Biometric Identification. - Takao Murakami; Ryo Fujita; Tetsushi Ohki; Yosuke Kaga; Masakazu Fujio; Kenta Takahashi (IEEE Access, 2019)

Improved Security Evaluation Techniques for Imperfect Randomness from Arbitrary Distributions. - Takahiro Matsuda 002; Kenta Takahashi; Takao Murakami; Goichiro Hanaoka (IACR Cryptol. ePrint Arch., 2019)

Cancelable indexing based on low-rank approximation of correlation-invariant random filtering for fast and secure biometric identification. - Takao Murakami; Tetsushi Ohki; Yosuke Kaga; Masakazu Fujio; Kenta Takahashi (Pattern Recognit. Lett., 2019)

New Secret Key Management Technology for Blockchains from Biometrics Fuzzy Signature. - Ken Naganuma; Takayuki Suzuki; Masayuki Yoshino; Kenta Takahashi; Yosuke Kaga; Noboru Kunihiro (AsiaJCIS, 2020)

Communication Protocol Between Humans and Bank Server Secure Against Man-in-the-Browser Attacks. - Koki Mukaihira; Yasuyoshi Jinno; Takashi Tsuchiya; Tetsushi Ohki; Kenta Takahashi; Wakaha Ogata; Masakatsu Nishigaki (IHSI, 2020)

Template Protected Authentication based on Location History and b-Bit MinHash. - Masakazu Fujio; Kenta Takahashi; Yosuke Kaga; Wataru Nakamura; Yoshiko Yasumura; Rie Shigetomi Yamaguchi (ARES, 2021)

Revisiting Fuzzy Signatures: Towards a More Risk-Free Cryptographic Authentication System based on Biometrics. - Shuichi Katsumata; Takahiro Matsuda 002; Wataru Nakamura; Kazuma Ohara; Kenta Takahashi (CCS, 2021)

Template Protected Fingerprint Verification using Set Similarity-based Minutia Cylinder Code and MinHash. - Yoshiko Yasumura; Masakazu Fujio; Wataru Nakamura; Yosuke Kaga; Kenta Takahashi (CANDAR, 2021)

Toward Evaluating Re-identification Risks in the Local Privacy Model. - Takao Murakami; Kenta Takahashi (Trans. Data Priv., 2021)

HandSegNet: Hand segmentation using convolutional neural network for contactless palmprint recognition. - Koichi Ito 001; Yusei Suzuki; Hiroya Kawai; Takafumi Aoki; Masakazu Fujio; Yosuke Kaga; Kenta Takahashi (IET Biom., 2022)

IPFed: Identity protected federated learning for user authentication. - Yosuke Kaga; Yusei Suzuki; Kenta Takahashi (APSIPA ASC, 2023)

A Biometric Signature Scheme with Template Protection and Authenticated Sample Recoverability. - Wataru Nakamura; Kenta Takahashi (APSIPA ASC, 2023)

Eye Biometrics Combined with Periocular and Iris Recognition Using CNN. - Taito Tonosaki; Shokei Kawakami; Koichi Ito 001; Takafumi Aoki; Yoshiko Yasumura; Masakazu Fujio; Yosuke Kaga; Kenta Takahashi (APSIPA ASC, 2023)

Finger Region Estimation by Boundary Curve Modeling and Bezier Curve Learning. - Masakazu Fujio; Keiichiro Nakazaki; Naoto Miura; Yosuke Kaga; Kenta Takahashi (ICPRAM, 2023)

A Quasilinear-Time CVP Algorithm for Triangular Lattice Based Fuzzy Extractors and Fuzzy Signatures. - Kenta Takahashi; Wataru Nakamura (APSIPA, 2024)

How to Efficiently Determine the Lattice Scale for Fuzzy Extractors and Fuzzy Signatures. - Wataru Nakamura; Kenta Takahashi (CANDAR, 2024)

Bio-SSI: Self-Sovereign Identity Bound to Biometrics. - Yoshiko Yasumura; Masakazu Fujio; Wataru Nakamura; Kenta Takahashi (CyberSciTech, 2024)

Egg-Laying Robot to Enhance Mind Perception of Children and Parents. - Takuto Akiyoshi; Kota Nieda; Yusaku Takahama; Kenta Takahashi; Kaito Nakamura; Taishi Sawabe (HRI (Companion), 2024)

A Linear-Time Algorithm for the Closest Vector Problem of Triangular Lattices. - Kenta Takahashi; Wataru Nakamura (CoRR, 2024)

Design and Evaluation of User Interface for Server-Aided In-Brain Signature - for Server-Aided In-Brain Signature. - Ryunosuke Harada; Wataru Hatakeyama; Sena Enomoto; Kakeru Hasegawa; Toi Tomita; Kenta Takahashi; Wakaha Ogata; Masakatsu Nishigaki (HCI (63), 2025)

Improving Periocular Recognition Accuracy: Opposite Side Learning Suppression and Vertical Image Inversion. - Masakazu Fujio; Yosuke Kaga; Kenta Takahashi (VISIGRAPP (2): VISAPP, 2025)

How to Use Your Brain for Cryptography Without Trustworthy Machines. - Wakaha Ogata; Toi Tomita; Kenta Takahashi; Masakatsu Nishigaki (IEEE Access, 2025)

Sample Recoverable Fuzzy Extractors. - Wataru Nakamura; Kenta Takahashi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2025)