| 2023 | FC | Electronic Cash with Open-Source Observers. | Taishi Higuchi, Akira Otsuka |
| 2021 | ESORICS | Probabilistic Micropayments with Transferability. | Taisei Takahashi, Akira Otsuka |
| 2021 | ICISSP | CyExec*: Automatic Generation of Randomized Cyber Range Scenarios. | Ryotaro Nakata, Akira Otsuka |
| 2021 | ICISSP | Evaluation of Vulnerability Reproducibility in Container-based Cyber Range. | Ryotaro Nakata, Akira Otsuka |
| 2020 | FC | Confidential and Auditable Payments. | Tatsuo Mitani, Akira Otsuka |
| 2020 | ISI | Deep Self-Supervised Clustering of the Dark Web for Cyber Threat Intelligence. | Masashi Kadoguchi, Hanae Kobayashi, Shota Hayashi, Akira Otsuka, Masaki Hashimoto |
| 2020 | ISI | An Expert System for Classifying Harmful Content on the Dark Web. | Hanae Kobayashi, Masashi Kadoguchi, Shota Hayashi, Akira Otsuka, Masaki Hashimoto |
| 2019 | FC | Short Paper: Secure Offline Payments in Bitcoin. | Taisei Takahashi, Akira Otsuka |
| 2019 | ISI | Exploring the Dark Web for Cyber Threat Intelligence using Machine Leaning. | Masashi Kadoguchi, Shota Hayashi, Masaki Hashimoto, Akira Otsuka |
| 2017 | CCS | A Study on Autoencoder-based Reconstruction Method for Wi-Fi Location Data with Erasures. | Tetsushi Ohki, Akira Otsuka |
| 2017 | ICASSP | Theoretical vulnerabilities in map speaker adaptation. | Tetsushi Ohki, Akira Otsuka |
| 2010 | FC | How to Evaluate the Security of Real-Life Cryptographic Protocols? - The Cases of ISO/IEC 29128 and CRYPTREC. | Shin'ichiro Matsuo, Kunihiko Miyazaki, Akira Otsuka, David A. Basin |
| 2010 | GLOBECOM | Practical Searching over Encrypted Data by Private Information Retrieval. | Rei Yoshida, Yang Cui, Tomohiro Sekino, Rie Shigetomi, Akira Otsuka, Hideki Imai |
| 2008 | FC | Real Electronic Cash Versus Academic Electronic Cash Versus Paper Cash (Panel Report). | Jon Callas, Yvo Desmedt, Daniel Nagy, Akira Otsuka, Jean-Jacques Quisquater, Moti Yung |
| 2008 | GLOBECOM | New Attestation Based Security Architecture for In-Vehicle Communication. | Hisashi Oguma, Akira Yoshioka, Makoto Nishikawa, Rie Shigetomi, Akira Otsuka, Hideki Imai |
| 2006 | SMC | Lightweight Privacy for Ubiquitous Devices. | Akira Otsuka, Rie Shigetomi, Hideki Imai |
| 2004 | ACISP | Information Theoretically Secure Oblivious Polynomial Evaluation: Model, Bounds, and Constructions. | Goichiro Hanaoka, Hideki Imai, Jrn Mller-Quade, Anderson C. A. Nascimento, Akira Otsuka, Andreas J. Winter |
| 2004 | ACNS | Unconditionally Non-interactive Verifiable Secret Sharing Secure against Faulty Majorities in the Commodity Based Model. | Anderson C. A. Nascimento, Jrn Mller-Quade, Akira Otsuka, Goichiro Hanaoka, Hideki Imai |
| 2002 | ITW | Cryptography with information theoretic security. | Hideki Imai, Goichiro Hanaoka, Junji Shikata, Akira Otsuka, Anderson C. A. Nascimento |
| 1999 | KES | A human supporting manipulator using neural network and its clinical application for forearm amputation. | Osamu Fukuda, Toshio Tsuji, Akira Otsuka, Makoto Kaneko |
| 1998 | ICRA | EMG-based Human-Robot Interface for Rehabilitation Aid. | Osamu Fukuda, Toshio Tsuji, Akira Otsuka, Makoto Kaneko |