| 2026 | SAC | Constrained Multiplication Protocol on Replicated Secret Sharing with Application to Modulus Conversion and Bit Decomposition. | Hiroki Sudo, Ryo Kikuchi, Koki Hamada, Dai Ikarashi |
| 2025 | ESORICS | Concretely Efficient Parallel-Accessible DORAM for 100K-Sized Array. | Koki Hamada |
| 2023 | AsiaCCS | Communication-Efficient Inner Product Private Join and Compute with Cardinality. | Koji Chida, Koki Hamada, Atsunori Ichikawa, Masanobu Kii, Junichi Tomida |
| 2023 | CCS | Secure Statistical Analysis on Multiple Datasets: Join and Group-By. | Gilad Asharov, Koki Hamada, Ryo Kikuchi, Ariel Nof, Benny Pinkas, Junichi Tomida |
| 2023 | TCC | 3-Party Secure Computation for RAMs: Optimal and Concretely Efficient. | Atsunori Ichikawa, Ilan Komargodski, Koki Hamada, Ryo Kikuchi, Dai Ikarashi |
| 2022 | CCS | Efficient Secure Three-Party Sorting with Applications to Data Analysis and Heavy Hitters. | Gilad Asharov, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Ariel Nof, Benny Pinkas, Katsumi Takahashi, Junichi Tomida |
| 2022 | COCOON | Refined Computational Complexities of Hospitals/Residents Problem with Regional Caps. | Koki Hamada, Shuichi Miyazaki |
| 2020 | IWOCA | Strongly Stable and Maximum Weakly Stable Noncrossing Matchings. | Koki Hamada, Shuichi Miyazaki, Kazuya Okamoto |
| 2019 | ACISP | Efficient Secure Multi-Party Protocols for Decision Tree Classification. | Atsunori Ichikawa, Wakaha Ogata, Koki Hamada, Ryo Kikuchi |
| 2019 | ACISP | Field Extension in Secret-Shared Form and Its Applications to Efficient Secure Computation. | Ryo Kikuchi, Nuttapong Attrapadung, Koki Hamada, Dai Ikarashi, Ai Ishida, Takahiro Matsuda, Yusuke Sakai, Jacob C. N. Schuldt |
| 2019 | ISAAC | Strategy-Proof Approximation Algorithms for the Stable Marriage Problem with Ties and Incomplete Lists. | Koki Hamada, Shuichi Miyazaki, Hiroki Yanagisawa |
| 2018 | ACISP | Efficient Bit-Decomposition and Modulus-Conversion Protocols with an Honest Majority. | Ryo Kikuchi, Dai Ikarashi, Takahiro Matsuda, Koki Hamada, Koji Chida |
| 2018 | CCS | High-Throughput Secure AES Computation. | Koji Chida, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Benny Pinkas |
| 2018 | CRYPTO | Fast Large-Scale Honest-Majority MPC for Malicious Adversaries. | Koji Chida, Daniel Genkin, Koki Hamada, Dai Ikarashi, Ryo Kikuchi, Yehuda Lindell, Ariel Nof |
| 2016 | AINA | Ice and Fire: Quantifying the Risk of Re-identification and Utility in Data Anonymization. | Hiroaki Kikuchi, Takayasu Yamaguchi, Koki Hamada, Yuji Yamaoka, Hidenobu Oguri, Jun Sakuma |
| 2016 | ESORICS | A Study from the Data Anonymization Competition Pwscup 2015. | Hiroaki Kikuchi, Takayasu Yamaguchi, Koki Hamada, Yuji Yamaoka, Hidenobu Oguri, Jun Sakuma |
| 2015 | CANS | Practical Password-Based Authentication Protocol for Secret Sharing Based Multiparty Computation. | Ryo Kikuchi, Koji Chida, Dai Ikarashi, Koki Hamada |
| 2014 | ICCCN | Efficient virtual network optimization across multiple domains without revealing private information. | Toru Mano, Takeru Inoue, Dai Ikarashi, Koki Hamada, Kimihiro Mizutani, Osamu Akashi |
| 2013 | ACISP | Secret Sharing Schemes with Conversion Protocol to Achieve Short Share-Size and Extendibility to Multiparty Computation. | Ryo Kikuchi, Koji Chida, Dai Ikarashi, Koki Hamada, Katsumi Takahashi |
| 2012 | ICISC | Practically Efficient Multi-party Sorting Protocols from Comparison Sort Algorithms. | Koki Hamada, Ryo Kikuchi, Dai Ikarashi, Koji Chida, Katsumi Takahashi |
| 2012 | SMC | Applicability of existing anonymization methods to large location history data in urban travel. | Rie Shigetomi Yamaguchi, Keiichi Hirota, Koki Hamada, Katsumi Takahashi, Kazutaka Matsuzaki, Jun Sakuma, Yasuyuki Shirai |
| 2011 | ESA | The Hospitals/Residents Problem with Quota Lower Bounds. | Koki Hamada, Kazuo Iwama, Shuichi Miyazaki |
| 2008 | ICPR | Usage of needle maps and shadows to overcome depth edges in depth map reconstruction. | Masaaki Iiyama, Koki Hamada, Koh Kakusho, Michihiko Minoh |