| 2026 | ACISP | Data Exfiltration over Browser. | Naseer Ahmad Noor, Masahiro Ishii, Keisuke Tanaka |
| 2026 | ICISSP | Effective Analysis of Encrypted Traffic for Mining Detection. | Masahiro Ishii, Satoshi Shibuya, Keisuke Tanaka |
| 2025 | ACNS | Double Auction Meets Blockchain: Consensus from Scored Bid-Assignment. | Xiangyu Su, Xavier Dfago, Mario Larangeira, Kazuyuki Mori, Takuya Oda, Yasumasa Tamura, Keisuke Tanaka |
| 2025 | FC | Optimizing Liveness for Blockchain-Based Sealed-Bid Auctions in Rational Settings. | Maozhou Huang, Xiangyu Su, Mario Larangeira, Keisuke Tanaka |
| 2025 | ICISC | Strong Designated Verifier Signatures with Non-delegatability from CSIDH. | Hiroki Minamide, Keisuke Tanaka, Masayuki Tezuka |
| 2025 | IWSEC | Public Key Encryption with Equality Test from Tag-Based Encryption. | Masayuki Tezuka, Keisuke Tanaka |
| 2025 | IWSEC | Ordered Multi-signatures with Public-Key Aggregation from SXDH Assumption. | Masayuki Tezuka, Keisuke Tanaka |
| 2025 | QRS | Design and Implementation of a Security Assessment Tool towards Practical Ransomware Countermeasures. | Keisuke Tanaka, Yu Tsuda, Tetsutaro Uehara |
| 2025 | TCC | Relationships Among FuncCPA and Its Related Notions. | Takumi Shinozaki, Tatsuaki Okamoto, Keisuke Tanaka, Masayuki Tezuka, Yusuke Yoshida |
| 2024 | ACNS | Auditable Attribute-Based Credentials Scheme and Its Application in Contact Tracing. | Pengfei Wang, Xiangyu Su, Mario Larangeira, Keisuke Tanaka |
| 2024 | SCN | Universally Composable Relaxed Asymmetric Password-Authenticated Key Exchange. | Shuya Hanai, Keisuke Tanaka, Masayuki Tezuka, Yusuke Yoshida |
| 2023 | ICISC | 1-out-of-n Oblivious Signatures: Security Revisited and a Generic Construction with an Efficient Communication Cost. | Masayuki Tezuka, Keisuke Tanaka |
| 2023 | NSS | Provably Secure Blockchain Protocols from Distributed Proof-of-Deep-Learning. | Xiangyu Su, Mario Larangeira, Keisuke Tanaka |
| 2022 | ACNS | Efficient Two-Party Exponentiation from Quotient Transfer. | Yi Lu, Keisuke Hara, Kazuma Ohara, Jacob C. N. Schuldt, Keisuke Tanaka |
| 2022 | ICISC | Analysis of (U, U+V)-code Problem with Gramian over Binary and Ternary Fields. | Ichiro Iwata, Yusuke Yoshida, Keisuke Tanaka |
| 2022 | ICISC | Pointcheval-Sanders Signature-Based Synchronized Aggregate Signature. | Masayuki Tezuka, Keisuke Tanaka |
| 2021 | CCS | Receiver Selective Opening Chosen Ciphertext Secure Identity-Based Encryption. | Keisuke Hara, Takahiro Matsuda, Keisuke Tanaka |
| 2021 | FC | Payment Trees: Low Collateral Payments for Payment Channel Networks. | Maxim Jourenko, Mario Larangeira, Keisuke Tanaka |
| 2021 | ICISC | Forward Secure Message Franking. | Hiroki Yamamuro, Keisuke Hara, Masayuki Tezuka, Yusuke Yoshida, Keisuke Tanaka |
| 2021 | PKC | Impossibility on Tamper-Resilient Cryptography with Uniqueness Properties. | Yuyu Wang, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka |
| 2021 | ProvSec | Turn-Based Communication Channels. | Carlo Brunetta, Mario Larangeira, Bei Liang, Aikaterini Mitrokotsa, Keisuke Tanaka |
| 2020 | ACISP | Improved Security Proof for the Camenisch-Lysyanskaya Signature-Based Synchronized Aggregate Signature Scheme. | Masayuki Tezuka, Keisuke Tanaka |
| 2020 | ASIACRYPT | Non-committing Encryption with Constant Ciphertext Expansion from Standard Assumptions. | Yusuke Yoshida, Fuyuki Kitagawa, Keita Xagawa, Keisuke Tanaka |
| 2020 | CANS | Lightweight Virtual Payment Channels. | Maxim Jourenko, Mario Larangeira, Keisuke Tanaka |
| 2020 | ICISC | Security Definitions on Time-Lock Puzzles. | Daiki Hiraga, Keisuke Hara, Masayuki Tezuka, Yusuke Yoshida, Keisuke Tanaka |
| 2020 | ICISC | Secret Sharing with Statistical Privacy and Computational Relaxed Non-malleability. | Tasuku Narita, Fuyuki Kitagawa, Yusuke Yoshida, Keisuke Tanaka |
| 2020 | ProvSec | Receiver Selective Opening CCA Secure Public Key Encryption from Various Assumptions. | Yi Lu, Keisuke Hara, Keisuke Tanaka |
| 2020 | ProvSec | Watermarkable Signature with Computational Function Preserving. | Kyohei Sudo, Masayuki Tezuka, Keisuke Hara, Yusuke Yoshida, Keisuke Tanaka |
| 2019 | ASIACRYPT | Fine-Grained Cryptography Revisited. | Shohei Egashira, Yuyu Wang, Keisuke Tanaka |
| 2019 | ASIACRYPT | Simple and Efficient KDM-CCA Secure Public Key Encryption. | Fuyuki Kitagawa, Takahiro Matsuda, Keisuke Tanaka |
| 2019 | ASIACRYPT | Non-Committing Encryption with Quasi-Optimal Ciphertext-Rate Based on the DDH Problem. | Yusuke Yoshida, Fuyuki Kitagawa, Keisuke Tanaka |
| 2019 | CANS | A t-out-of-n Redactable Signature Scheme. | Masayuki Tezuka, Xiangyu Su, Keisuke Tanaka |
| 2019 | CCS | Proper Usage of the Group Signature Scheme in ISO/IEC 20008-2. | Ai Ishida, Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka |
| 2019 | CRYPTO | CCA Security and Trapdoor Functions via Key-Dependent-Message Security. | Fuyuki Kitagawa, Takahiro Matsuda, Keisuke Tanaka |
| 2019 | CRYPTO | Adaptively Secure and Succinct Functional Encryption: Improving Security and Efficiency, Simultaneously. | Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka, Takashi Yamakawa |
| 2018 | ASIACRYPT | A Framework for Achieving KDM-CCA Secure Public-Key Encryption. | Fuyuki Kitagawa, Keisuke Tanaka |
| 2018 | EuroCrypt | Obfustopia Built on Secret-Key Functional Encryption. | Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka |
| 2018 | EuroCrypt | Memory Lower Bounds of Reductions Revisited. | Yuyu Wang, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka |
| 2018 | PKC | Simple and Generic Constructions of Succinct Functional Encryption. | Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka |
| 2018 | PKC | Key Dependent Message Security and Receiver Selective Opening Security for Identity-Based Encryption. | Fuyuki Kitagawa, Keisuke Tanaka |
| 2018 | SCN | Simulation-Based Receiver Selective Opening CCA Secure PKE from Standard Computational Assumptions. | Keisuke Hara, Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka |
| 2018 | SCN | Fully Anonymous Group Signature with Verifier-Local Revocation. | Ai Ishida, Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka |
| 2017 | ESORICS | Generic Constructions for Fully Secure Revocable Attribute-Based Encryption. | Kotoko Yamada, Nuttapong Attrapadung, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka |
| 2017 | PQCrypto | CCA2 Key-Privacy for Code-Based Encryption in the Standard Model. | Yusuke Yoshida, Kirill Morozov, Keisuke Tanaka |
| 2016 | ASIACRYPT | How to Obtain Fully Structure-Preserving (Automorphic) Signatures from Structure-Preserving Ones. | Yuyu Wang, Zongyang Zhang, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka |
| 2016 | CANS | Group Signature with Deniability: How to Disavow a Signature. | Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka |
| 2016 | IWSEC | Lower Bounds for Key Length of k-wise Almost Independent Permutations and Certain Symmetric-Key Encryption Schemes. | Akinori Kawachi, Hirotoshi Takebe, Keisuke Tanaka |
| 2016 | PKC | On the Key Dependent Message Security of the Fujisaki-Okamoto Constructions. | Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka |
| 2016 | SCN | Signatures Resilient to Uninvertible Leakage. | Yuyu Wang, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka |
| 2015 | ACISP | Generic Transformation to Strongly Existentially Unforgeable Signature Schemes with Continuous Leakage Resiliency. | Yuyu Wang, Keisuke Tanaka |
| 2015 | CCS | Disavowable Public Key Encryption with Non-interactive Opening. | Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka |
| 2014 | ACISP | Strongly Simulation-Extractable Leakage-Resilient NIZK. | Yuyu Wang, Keisuke Tanaka |
| 2014 | ICISC | Efficient Key Dependent Message Security Amplification Against Chosen Ciphertext Attacks. | Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka |
| 2014 | PIMRC | A proposal of novel q-DWT for blind and robust image watermarking. | Ta Minh Thanh, Keisuke Tanaka |
| 2014 | ProvSec | Generic Transformation to Strongly Existentially Unforgeable Signature Schemes with Leakage Resiliency. | Yuyu Wang, Keisuke Tanaka |
| 2013 | IWSEC | Game-Theoretic Security for Bit Commitment. | Haruna Higo, Keisuke Tanaka, Kenji Yasunaga |
| 2013 | IWSEC | Attacks to the Proxy Re-Encryption Schemes from IWSEC2011. | Toshiyuki Isshiki, Manh Ha Nguyen, Keisuke Tanaka |
| 2013 | ProvSec | Factoring-Based Proxy Re-Encryption Schemes. | Toshiyuki Isshiki, Manh Ha Nguyen, Keisuke Tanaka |
| 2013 | TAMC | Grey-Box Public-Key Steganography. | Hirotoshi Takebe, Keisuke Tanaka |
| 2012 | ACISP | A Game-Theoretic Perspective on Oblivious Transfer. | Haruna Higo, Keisuke Tanaka, Akihiro Yamada, Kenji Yasunaga |
| 2012 | ACISP | Leakage-Resilience of Stateless/Stateful Public-Key Encryption from Hash Proofs. | Manh Ha Nguyen, Keisuke Tanaka, Kenji Yasunaga |
| 2012 | IWSEC | Symmetric-Key Encryption Scheme with Multi-ciphertext Non-malleability. | Akinori Kawachi, Hirotoshi Takebe, Keisuke Tanaka |
| 2012 | WISA | Reduction-Centric Non-programmable Security Proof for the Full Domain Hash in the Random Oracle Model. | Mario Larangeira, Keisuke Tanaka |
| 2011 | ProvSec | Randomness Leakage in the KEM/DEM Framework. | Hitoshi Namiki, Keisuke Tanaka, Kenji Yasunaga |
| 2011 | ProvSec | Weak Oblivious Transfer from Strong One-Way Functions. | Keisuke Tanaka, Akihiro Yamada, Kenji Yasunaga |
| 2010 | ACISP | A Multi-trapdoor Commitment Scheme from the RSA Assumption. | Ryo Nishimaki, Eiichiro Fujisaki, Keisuke Tanaka |
| 2010 | PKC | Security of Encryption Schemes in Weakened Random Oracle Models. | Akinori Kawachi, Akira Numayama, Keisuke Tanaka, Keita Xagawa |
| 2010 | PKC | CCA Proxy Re-Encryption without Bilinear Maps in the Standard Model. | Toshihide Matsuda, Ryo Nishimaki, Keisuke Tanaka |
| 2009 | ACISP | Multi-recipient Public-Key Encryption from Simulators in Security Proofs. | Harunaga Hiwatari, Keisuke Tanaka, Tomoyuki Asano, Koichi Sakumoto |
| 2009 | ACISP | Security on Hybrid Encryption with the Tag-KEM/DEM Framework. | Toshihide Matsuda, Ryo Nishimaki, Akira Numayama, Keisuke Tanaka |
| 2009 | ACISP | On the Weak Ideal Compression Functions. | Akira Numayama, Keisuke Tanaka |
| 2009 | ASIACRYPT | Efficient Public Key Encryption Based on Ideal Lattices. | Damien Stehl, Ron Steinfeld, Keisuke Tanaka, Keita Xagawa |
| 2009 | ProvSec | On the Insecurity of the Fiat-Shamir Signatures with Iterative Hash Functions. | Eiichiro Fujisaki, Ryo Nishimaki, Keisuke Tanaka |
| 2009 | ProvSec | Efficient Non-interactive Universally Composable String-Commitment Schemes. | Ryo Nishimaki, Eiichiro Fujisaki, Keisuke Tanaka |
| 2009 | ProvSec | Zero-Knowledge Protocols for NTRU: Application to Identification and Proof of Plaintext Knowledge. | Keita Xagawa, Keisuke Tanaka |
| 2008 | ACISP | Public-Key Cryptosystems with Primitive Power Roots of Unity. | Takato Hirano, Koichiro Wada, Keisuke Tanaka |
| 2008 | ASIACRYPT | Concurrently Secure Identification Schemes Based on the Worst-Case Hardness of Lattice Problems. | Akinori Kawachi, Keisuke Tanaka, Keita Xagawa |
| 2008 | PKC | Security of Digital Signature Schemes in Weakened Random Oracle Models. | Akira Numayama, Toshiyuki Isshiki, Keisuke Tanaka |
| 2007 | ACISP | Anonymity on Paillier's Trap-Door Permutation. | Ryotaro Hayashi, Keisuke Tanaka |
| 2007 | PKC | Multi-bit Cryptosystems Based on Lattice Problems. | Akinori Kawachi, Keisuke Tanaka, Keita Xagawa |
| 2007 | VR | The IllusionHole for Medical Applications. | Yoshifumi Kitamura, Takashi Nakashima, Keisuke Tanaka, Takeshi Johkoh |
| 2006 | ACISP | PA in the Two-Key Setting and a Generic Conversion for Encryption with Anonymity. | Ryotaro Hayashi, Keisuke Tanaka |
| 2006 | WISA | Secret Handshake with Multiple Groups. | Naoyuki Yamashita, Keisuke Tanaka |
| 2005 | ACISP | An (n-t)-out-of-n Threshold Ring Signature Scheme. | Toshiyuki Isshiki, Keisuke Tanaka |
| 2005 | ASIACRYPT | Universally Anonymizable Public-Key Encryption. | Ryotaro Hayashi, Keisuke Tanaka |
| 2005 | ICITA | Security for Authenticated Key Exchange Based on Non-Malleability. | Hiroki Hada, Keisuke Tanaka |
| 2005 | ICITA | Universal Designated-Verifier Signature with Aggregation. | Akihiro Mihara, Keisuke Tanaka |
| 2005 | PKC | The Sampling Twice Technique for the RSA-Based Cryptosystems with Anonymity. | Ryotaro Hayashi, Keisuke Tanaka |
| 2004 | PKC | An RSA Family of Trap-Door Permutations with a Common Domain and Its Applications. | Ryotaro Hayashi, Tatsuaki Okamoto, Keisuke Tanaka |
| 2003 | ISAAC | Limiting Negations in Bounded-Depth Circuits: An Extension of Markov's Theorem. | Shao Chin Sung, Keisuke Tanaka |
| 2003 | PRIMA | Extended Hierarchical Task Network Planning for Interactive Comedy. | Ruck Thawonmas, Keisuke Tanaka, Hiroki Hassaku |
| 2000 | CRYPTO | Quantum Public-Key Cryptosystems. | Tatsuaki Okamoto, Keisuke Tanaka, Shigenori Uchiyama |
| 1996 | ISAAC | Approximation and Special Cases of Common Subtrees and Editing Distance. | Magns M. Halldrsson, Keisuke Tanaka |
| 1995 | STOC | More on the complexity of negation-limited circuits. | Robert Beals, Tetsuro Nishino, Keisuke Tanaka |
| 1994 | STOC | On the complexity of negation-limited Boolean networks. | Keisuke Tanaka, Tetsuro Nishino |