| 2023 | ESORICS | Threshold Fully Homomorphic Encryption Over the Torus. | Yukimasa Sugizaki, Hikaru Tsuchida, Takuya Hayashi, Koji Nuida, Akira Nakashima, Toshiyuki Isshiki, Kengo Mori |
| 2020 | ACISP | Galaxy: A Family of Stream-Cipher-Based Space-Hard Ciphers. | Yuji Koike, Kosei Sakamoto, Takuya Hayashi, Takanori Isobe |
| 2019 | ICDM | A Fast Privacy-Preserving Multi-Layer Perceptron Using Ring-LWE-Based Homomorphic Encryption. | Takehiro Tezuka, Lihua Wang, Takuya Hayashi, Seiichi Ozawa |
| 2019 | IECON | Global Stabilization for PVTOL System via Minimum Projection Method. | Ryoya Ikeda, Takuya Hayashi, Hisakazu Nakamura |
| 2019 | IECON | Locally Semiconcave Control Barrier Function Design for Human Assist Control. | Masayuki Saito, Hisakazu Nakamura, Takuya Hayashi, Takao Yoshinaga |
| 2018 | ICONIP | Privacy-Preserving Naive Bayes Classification Using Fully Homomorphic Encryption. | Sangwook Kim, Masahiro Omori, Takuya Hayashi, Toshiaki Omori, Lihua Wang, Seiichi Ozawa |
| 2017 | CCS | Efficient Key-Rotatable and Security-Updatable Homomorphic Encryption. | Yoshinori Aono, Takuya Hayashi, Le Trieu Phong, Lihua Wang |
| 2017 | CCS | Group Signatures with Time-bound Keys Revisited: A New Model and an Efficient Construction. | Keita Emura, Takuya Hayashi, Ai Ishida |
| 2017 | CCS | Mis-operation Resistant Searchable Homomorphic Encryption. | Keita Emura, Takuya Hayashi, Noboru Kunihiro, Jun Sakuma |
| 2017 | NSS | A Generic yet Efficient Method for Secure Inner Product. | Lihua Wang, Takuya Hayashi, Yoshinori Aono, Le Trieu Phong |
| 2016 | EuroCrypt | Improved Progressive BKZ Algorithms and Their Precise Cost Estimation by Sharp Simulator. | Yoshinori Aono, Yuntao Wang, Takuya Hayashi, Tsuyoshi Takagi |
| 2016 | ISITA | Toward securing tire pressure monitoring systems: A case of PRESENT-based implementation. | Keita Emura, Takuya Hayashi, Shiho Moriai |
| 2015 | CCS | POSTER: PRINCESS: A Secure Cloud File Storage System for Managing Data with Hierarchical Levels of Sensitivity. | Lihua Wang, Takuya Hayashi, Sachiko Kanamori, Atsushi Waseda, Ryo Nojima, Shiho Moriai |
| 2015 | CRITIS | PPP (Public-Private Partnership)-Based Business Continuity of Regional Banking Services for Communities in Wide-Area Disasters - Limitation of Individual BCP/BCM Ensuring Interoperability Among Banks Cooperation with Local Governments for Socioeconomic Resilience in Japan. | Kenji Watanabe, Takuya Hayashi |
| 2013 | IROS | Design of hybrid drive exoskeleton robot XoR2. | Sang-Ho Hyon, Takuya Hayashi, Atsutoshi Yagi, Tomoyuki Noda, Jun Morimoto |
| 2012 | ASIACRYPT | Breaking Pairing-Based Cryptosystems Using η T Pairing over GF(397). | Takuya Hayashi, Takeshi Shimoyama, Naoyuki Shinohara, Tsuyoshi Takagi |
| 2012 | ISPEC | Key Length Estimation of Pairing-Based Cryptosystems Using η T Pairing. | Naoyuki Shinohara, Takeshi Shimoyama, Takuya Hayashi, Tsuyoshi Takagi |
| 2010 | PKC | Solving a 676-Bit Discrete Logarithm Problem in GF(3 | Takuya Hayashi, Naoyuki Shinohara, Lihua Wang, Shin'ichiro Matsuo, Masaaki Shirase, Tsuyoshi Takagi |