Goichiro Hanaoka

340 papers A* 3A 12B 23C 36Misc 33Journal 150Unranked 68
YearRankTypeTitle / Venue / Authors
2026 — ed.
Advances in Cryptology - ASIACRYPT 2025 - 31st International Conference on the Theory and Application of Cryptology and Information Security, Melbourne, VIC, Australia, December 8-12, 2025, Proceedings, Part I
ASIACRYPT (1)
Goichiro Hanaoka, Bo-Yin Yang
2026 — ed.
Advances in Cryptology - ASIACRYPT 2025 - 31st International Conference on the Theory and Application of Cryptology and Information Security, Melbourne, VIC, Australia, December 8-12, 2025, Proceedings, Part II
ASIACRYPT (2)
Goichiro Hanaoka, Bo-Yin Yang
2026 — ed.
Advances in Cryptology - ASIACRYPT 2025 - 31st International Conference on the Theory and Application of Cryptology and Information Security, Melbourne, VIC, Australia, December 8-12, 2025, Proceedings, Part III
ASIACRYPT (3)
Goichiro Hanaoka, Bo-Yin Yang
2026 — ed.
Advances in Cryptology - ASIACRYPT 2025 - 31st International Conference on the Theory and Application of Cryptology and Information Security, Melbourne, VIC, Australia, December 8-12, 2025, Proceedings, Part IV
ASIACRYPT (4)
Goichiro Hanaoka, Bo-Yin Yang
2026 — ed.
Advances in Cryptology - ASIACRYPT 2025 - 31st International Conference on the Theory and Application of Cryptology and Information Security, Melbourne, VIC, Australia, December 8-12, 2025, Proceedings, Part V
ASIACRYPT (5)
Goichiro Hanaoka, Bo-Yin Yang
2026 — ed.
Advances in Cryptology - ASIACRYPT 2025 - 31st International Conference on the Theory and Application of Cryptology and Information Security, Melbourne, VIC, Australia, December 8-12, 2025, Proceedings, Part VI
ASIACRYPT (6)
Goichiro Hanaoka, Bo-Yin Yang
2026 — ed.
Advances in Cryptology - ASIACRYPT 2025 - 31st International Conference on the Theory and Application of Cryptology and Information Security, Melbourne, VIC, Australia, December 8-12, 2025, Proceedings, Part VII
ASIACRYPT (7)
Goichiro Hanaoka, Bo-Yin Yang
2026 — ed.
Advances in Cryptology - ASIACRYPT 2025 - 31st International Conference on the Theory and Application of Cryptology and Information Security, Melbourne, VIC, Australia, December 8-12, 2025, Proceedings, Part VIII
ASIACRYPT (8)
Goichiro Hanaoka, Bo-Yin Yang
2026 J jnl
On Key Substitution Attacks Against Aggregate Signatures and Multi-Signatures.
IEEE Access
Yuuki Fujita, Yusuke Sakai, Kyosuke Yamashita, Goichiro Hanaoka
2025 J jnl
Fast and Private 1-to-$N$ Face Identification Protocols.
IEEE Open J. Comput. Soc.
Nuttapong Attrapadung, Reo Eriguchi, Goichiro Hanaoka, Takahiro Matsuda, Naohisa Nishida, Tatsumi Oba, Jacob C. N. Schuldt, Koki Tejima, Tadanori Teruya, Yuji Unagami, Naoto Yanai
2025 J jnl
Foreword.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Goichiro Hanaoka
2025 J jnl
Multi-Query Verifiable PIR and Its Application.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Ryuya Hayashi, Junichiro Hayata, Keisuke Hara, Kenta Nomura, Masaki Kamizono, Goichiro Hanaoka
2025 — conf
On Key Substitution Attacks against Aggregate Signatures and Multi-Signatures.
APKC@AsiaCCS
Yuuki Fujita, Yusuke Sakai, Kyosuke Yamashita, Goichiro Hanaoka
2024 J jnl
A New Pairing-Based Two-Round Tightly-Secure Multi-Signature Scheme with Key Aggregation.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Rikuhiro Kojima, Jacob C. N. Schuldt, Goichiro Hanaoka
2024 J jnl
Constraints and Evaluations on Signature Transmission Interval for Aggregate Signatures with Interactive Tracing Functionality.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Ryu Ishii, Kyosuke Yamashita, Zihao Song, Yusuke Sakai, Tadanori Teruya, Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto
2024 J jnl
More Efficient Two-Round Multi-Signature Scheme with Provably Secure Parameters for Standardized Elliptic Curves.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kaoru Takemure, Yusuke Sakai, Bagus Santoso, Goichiro Hanaoka, Kazuo Ohta
2024 — conf
Multi-query Verifiable PIR and Its Application.
CANS (2)
Ryuya Hayashi, Junichiro Hayata, Keisuke Hara, Kenta Nomura, Masaki Kamizono, Goichiro Hanaoka
2024 J jnl
On Key Substitution Attacks against Aggregate Signatures and Multi-Signatures.
IACR Cryptol. ePrint Arch.
Yuuki Fujita, Yusuke Sakai, Kyosuke Yamashita, Goichiro Hanaoka
2024 J jnl
On private information retrieval supporting range queries.
Int. J. Inf. Sec.
Junichiro Hayata, Jacob C. N. Schuldt, Goichiro Hanaoka, Kanta Matsuura
2024 — conf
Privacy-Preserving Verifiable CNNs.
ACNS (2)
Nuttapong Attrapadung, Goichiro Hanaoka, Ryo Hiromasa, Yoshihiro Koseki, Takahiro Matsuda, Yutaro Nishida, Yusuke Sakai, Jacob C. N. Schuldt, Satoshi Yasuda
2024 J jnl
REN-A.I.: A Video Game for AI Security Education Leveraging Episodic Memory.
IEEE Access
Mine Arai, Koki Tejima, Yuya Yamada, Takayuki Miura, Kyosuke Yamashita, Chihiro Kado, Rei Shimizu, Masataka Tatsumi, Naoto Yanai, Goichiro Hanaoka
2024 — conf
Tighter Adaptive IBEs and VRFs: Revisiting Waters' Artificial Abort.
TCC (3)
Goichiro Hanaoka, Shuichi Katsumata, Kei Kimura, Kaoru Takemure, Shota Yamada
2024 J jnl
Tighter Adaptive IBEs and VRFs: Revisiting Waters' Artificial Abort.
IACR Cryptol. ePrint Arch.
Goichiro Hanaoka, Shuichi Katsumata, Kei Kimura, Kaoru Takemure, Shota Yamada
2023 J jnl
Fault-Tolerant Aggregate Signature Schemes against Bandwidth Consumption Attack.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kyosuke Yamashita, Ryu Ishii, Yusuke Sakai, Tadanori Teruya, Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto
2023 J jnl
Maliciously circuit-private multi-key FHE and MPC based on LWE.
Des. Codes Cryptogr.
Nuttapong Attrapadung, Goichiro Hanaoka, Ryo Hiromasa, Takahiro Matsuda, Jacob C. N. Schuldt
2023 J jnl
More Efficient Two-Round Multi-Signature Scheme with Provably Secure Parameters.
IACR Cryptol. ePrint Arch.
Kaoru Takemure, Yusuke Sakai, Bagus Santoso, Goichiro Hanaoka, Kazuo Ohta
2023 — conf
Signature for Objects: Formalizing How to Authenticate Physical Data and More.
FC (1)
Ryuya Hayashi, Taiki Asano, Junichiro Hayata, Takahiro Matsuda, Shota Yamada, Shuichi Katsumata, Yusuke Sakai, Tadanori Teruya, Jacob C. N. Schuldt, Nuttapong Attrapadung, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto
2023 B conf
Two-Dimensional Dynamic Fusion for Continuous Authentication.
IJCB
Nuttapong Attrapadung, Goichiro Hanaoka, Haochen M. Kotoi-Xie, Takahiro Matsuda, Takumi Moriyama, Takao Murakami, Hidenori Nakamura, Jacob C. N. Schuldt, Masaaki Tokuyama, Jing Zhang
2023 J jnl
Two-Dimensional Dynamic Fusion for Continuous Authentication.
CoRR
Nuttapong Attrapadung, Goichiro Hanaoka, Haochen M. Kotoi-Xie, Takahiro Matsuda, Takumi Moriyama, Takao Murakami, Hidenori Nakamura, Jacob C. N. Schuldt, Masaaki Tokuyama, Jing Zhang
2022 J jnl
Aggregate Signature Schemes with Traceability of Devices Dynamically Generating Invalid Signatures.
IEICE Trans. Inf. Syst.
Ryu Ishii, Kyosuke Yamashita, Yusuke Sakai, Tadanori Teruya, Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto
2022 — conf
Constraints and Evaluations on Signature Transmission Interval for Aggregate Signatures with Interactive Tracing Functionality.
ADIoT
Ryu Ishii, Kyosuke Yamashita, Zihao Song, Yusuke Sakai, Tadanori Teruya, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto
2022 J jnl
Generic transformation from broadcast encryption to round-optimal deniable ring authentication.
Des. Codes Cryptogr.
Keisuke Hara, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2022 J jnl
How to Extend CTRT for AES-256 and AES-192.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
SeongHan Shin, Shota Yamada, Goichiro Hanaoka, Yusuke Ishida, Atsushi Kunii, Junichi Oketani, Shimpei Kunii, Kiyoshi Tomomura
2022 — ed.
Public-Key Cryptography - PKC 2022 - 25th IACR International Conference on Practice and Theory of Public-Key Cryptography, Virtual Event, March 8-11, 2022, Proceedings, Part I
Public Key Cryptography (1)
Goichiro Hanaoka, Junji Shikata, Yohei Watanabe
2022 — ed.
Public-Key Cryptography - PKC 2022 - 25th IACR International Conference on Practice and Theory of Public-Key Cryptography, Virtual Event, March 8-11, 2022, Proceedings, Part II
Public Key Cryptography (2)
Goichiro Hanaoka, Junji Shikata, Yohei Watanabe
2022 J jnl
Tight Security of Twin-DH Hashed ElGamal KEM in Multi-User Setting.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yuji Hashimoto, Koji Nuida, Goichiro Hanaoka
2021 J jnl
Achieving Pairing-Free Aggregate Signatures using Pre-Communication between Signers.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kaoru Takemure, Yusuke Sakai, Bagus Santoso, Goichiro Hanaoka, Kazuo Ohta
2021 — conf
Aggregate Signature with Traceability of Devices Dynamically Generating Invalid Signatures.
ACNS Workshops
Ryu Ishii, Kyosuke Yamashita, Yusuke Sakai, Takahiro Matsuda, Tadanori Teruya, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto
2021 J jnl
Equivalence between Non-Malleability against Replayable CCA and Other RCCA-Security Notions.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Junichiro Hayata, Fuyuki Kitagawa, Yusuke Sakai, Goichiro Hanaoka, Kanta Matsuura
2021 J jnl
Fully Anonymous Group Signature with Verifier-Local Revocation.
IACR Cryptol. ePrint Arch.
Ai Kitagawa, Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka
2021 — conf
Impossibility on Tamper-Resilient Cryptography with Uniqueness Properties.
Public Key Cryptography (1)
Yuyu Wang, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2021 A* conf
Oblivious Linear Group Actions and Applications.
CCS
Nuttapong Attrapadung, Goichiro Hanaoka, Takahiro Matsuda, Hiraku Morita, Kazuma Ohara, Jacob C. N. Schuldt, Tadanori Teruya, Kazunari Tozawa
2020 J jnl
A Setup-Free Threshold Encryption Scheme for the Bitcoin Protocol and Its Applications.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Goichiro Hanaoka, Yusuke Sakai, Toshiya Shimizu, Takeshi Shimoyama, SeongHan Shin
2020 C conf
Achieving Pairing-Free Aggregate Signatures using Pre-Communication between Signers.
ProvSec
Kaoru Takemure, Yusuke Sakai, Bagus Santoso, Goichiro Hanaoka, Kazuo Ohta
2020 J jnl
Constant-Round Client-Aided Two-Server Secure Comparison Protocol and Its Applications.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Hiraku Morita, Nuttapong Attrapadung, Tadanori Teruya, Satsuya Ohata, Koji Nuida, Goichiro Hanaoka
2020 J jnl
Cryptanalysis of Aggregate Γ-Signature and Practical Countermeasures in Application to Bitcoin.
IACR Cryptol. ePrint Arch.
Goichiro Hanaoka, Kazuo Ohta, Yusuke Sakai, Bagus Santoso, Kaoru Takemure, Yunlei Zhao
2020 J jnl
Efficient Secure Neural Network Prediction Protocol Reducing Accuracy Degradation.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Naohisa Nishida, Tatsumi Oba, Yuji Unagami, Jason Paul Cruz, Naoto Yanai, Tadanori Teruya, Nuttapong Attrapadung, Takahiro Matsuda, Goichiro Hanaoka
2020 J jnl
Exposing Private User Behaviors of Collaborative Filtering via Model Inversion Techniques.
Proc. Priv. Enhancing Technol.
Seira Hidano, Takao Murakami, Shuichi Katsumata, Shinsaku Kiyomoto, Goichiro Hanaoka
2020 J jnl
Generic Construction of Adaptively Secure Anonymous Key-Policy Attribute-Based Encryption from Public-Key Searchable Encryption.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Junichiro Hayata, Masahito Ishizaka, Yusuke Sakai, Goichiro Hanaoka, Kanta Matsuura
2020 J jnl
Generic hardness of inversion on ring and its relation to self-bilinear map.
Theor. Comput. Sci.
Takashi Yamakawa, Shota Yamada, Goichiro Hanaoka, Noboru Kunihiro
2020 — conf
On Private Information Retrieval Supporting Range Queries.
ESORICS (2)
Junichiro Hayata, Jacob C. N. Schuldt, Goichiro Hanaoka, Kanta Matsuura
2020 J jnl
Practical Public-Key Encryption Scheme Tightly Secure in the Random Oracle Model.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yusuke Sakai, Goichiro Hanaoka
2020 — conf
Semantic Definition of Anonymity in Identity-Based Encryption and Its Relation to Indistinguishability-Based Definition.
ESORICS (2)
Goichiro Hanaoka, Misaki Komatsu, Kazuma Ohara, Yusuke Sakai, Shota Yamada
2020 J jnl
Verifiable Privacy-Preserving Data Aggregation Protocols.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Satoshi Yasuda, Yoshihiro Koseki, Yusuke Sakai, Fuyuki Kitagawa, Yutaka Kawai, Goichiro Hanaoka
2019 J jnl
A New Combiner for Key Encapsulation Mechanisms.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Goichiro Hanaoka, Takahiro Matsuda, Jacob C. N. Schuldt
2019 J jnl
A Taxonomy of Secure Two-Party Comparison Protocols and Efficient Constructions.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Nuttapong Attrapadung, Goichiro Hanaoka, Shinsaku Kiyomoto, Tomoaki Mimoto, Jacob C. N. Schuldt
2019 Misc conf
An Extended CTRT for AES-256.
WISA
SeongHan Shin, Shota Yamada, Goichiro Hanaoka, Yusuke Ishida, Atsushi Kunii, Junichi Oketani, Shimpei Kunii, Kiyoshi Tomomura
2019 Misc conf
Equivalence Between Non-malleability Against Replayable CCA and Other RCCA-Security Notions.
IWSEC
Junichiro Hayata, Fuyuki Kitagawa, Yusuke Sakai, Goichiro Hanaoka, Kanta Matsuura
2019 J jnl
Group Signatures with Message-Dependent Opening: Formal Definitions and Constructions.
Secur. Commun. Networks
Keita Emura, Goichiro Hanaoka, Yutaka Kawai, Takahiro Matsuda, Kazuma Ohara, Kazumasa Omote, Yusuke Sakai
2019 — conf
Improved Security Evaluation Techniques for Imperfect Randomness from Arbitrary Distributions.
Public Key Cryptography (1)
Takahiro Matsuda, Kenta Takahashi, Takao Murakami, Goichiro Hanaoka
2019 J jnl
Improved Security Evaluation Techniques for Imperfect Randomness from Arbitrary Distributions.
IACR Cryptol. ePrint Arch.
Takahiro Matsuda, Kenta Takahashi, Takao Murakami, Goichiro Hanaoka
2019 J jnl
MOBIUS: Model-Oblivious Binarized Neural Networks.
IEEE Access
Hiromasa Kitai, Jason Paul Cruz, Naoto Yanai, Naohisa Nishida, Tatsumi Oba, Yuji Unagami, Tadanori Teruya, Nuttapong Attrapadung, Takahiro Matsuda, Goichiro Hanaoka
2019 A conf
Proper Usage of the Group Signature Scheme in ISO/IEC 20008-2.
AsiaCCS
Ai Ishida, Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka
2019 J jnl
Proper Usage of the Group Signature Scheme in ISO/IEC 20008-2.
IACR Cryptol. ePrint Arch.
Ai Ishida, Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka
2019 J jnl
Proxy Re-Encryption That Supports Homomorphic Operations for Re-Encrypted Ciphertexts.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yutaka Kawai, Takahiro Matsuda, Takato Hirano, Yoshihiro Koseki, Goichiro Hanaoka
2019 J jnl
Shortening the Libert-Peters-Yung Revocable Group Signature Scheme by Using the Random Oracle Methodology.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kazuma Ohara, Keita Emura, Goichiro Hanaoka, Ai Ishida, Kazuo Ohta, Yusuke Sakai
2019 J jnl
Signature schemes with a fuzzy private key.
Int. J. Inf. Sec.
Kenta Takahashi, Takahiro Matsuda, Takao Murakami, Goichiro Hanaoka, Masakatsu Nishigaki
2019 J jnl
Simulation-based receiver selective opening CCA secure PKE from standard computational assumptions.
Theor. Comput. Sci.
Keisuke Hara, Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2018 C conf
A Consideration on the Transformation from Deniable Group Signature to Disavowable PKENO.
ISITA
Ai Ishida, Yusuke Sakai, Goichiro Hanaoka
2018 C conf
A Remark on an Identity-Based Encryption Scheme with Non-interactive Opening.
ISITA
Yusuke Sakai, Goichiro Hanaoka
2018 C conf
Accuracy/Efficiency Trade-Off for Privacy-Preserving Division Protocol.
ISITA
Satsuya Ohata, Hiraku Morita, Goichiro Hanaoka
2018 J jnl
Attribute-Based Encryption for Range Attributes.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Nuttapong Attrapadung, Goichiro Hanaoka, Kazuto Ogawa, Go Ohtake, Hajime Watanabe, Shota Yamada
2018 — conf
Attribute-Based Signatures for Unbounded Languages from Standard Assumptions.
ASIACRYPT (2)
Yusuke Sakai, Shuichi Katsumata, Nuttapong Attrapadung, Goichiro Hanaoka
2018 J jnl
Attribute-Based Signatures for Unbounded Languages from Standard Assumptions.
IACR Cryptol. ePrint Arch.
Yusuke Sakai, Shuichi Katsumata, Nuttapong Attrapadung, Goichiro Hanaoka
2018 J jnl
Chosen ciphertext secure keyed-homomorphic public-key cryptosystems.
Des. Codes Cryptogr.
Keita Emura, Goichiro Hanaoka, Koji Nuida, Go Ohtake, Takahiro Matsuda, Shota Yamada
2018 — conf
Constant-Round Client-Aided Secure Comparison Protocol.
ESORICS (2)
Hiraku Morita, Nuttapong Attrapadung, Tadanori Teruya, Satsuya Ohata, Koji Nuida, Goichiro Hanaoka
2018 A conf
Efficient Two-level Homomorphic Encryption in Prime-order Bilinear Groups and A Fast Implementation in WebAssembly.
AsiaCCS
Nuttapong Attrapadung, Goichiro Hanaoka, Shigeo Mitsunari, Yusuke Sakai, Kana Shimizu, Tadanori Teruya
2018 C conf
Embedding Lemmas for Functional Encryption.
ISITA
Ryo Kato, Naohisa Nishida, Ryo Hirano, Tatsumi Oba, Yuji Unagami, Shota Yamada, Tadanori Teruya, Nuttapong Attrapadung, Takahiro Matsuda, Goichiro Hanaoka
2018 — conf
Fast Lattice Basis Reduction Suitable for Massive Parallelization and Its Application to the Shortest Vector Problem.
Public Key Cryptography (1)
Tadanori Teruya, Kenji Kashiwabara, Goichiro Hanaoka
2018 J jnl
Fast Lattice Basis Reduction Suitable for Massive Parallelization and Its Application to the Shortest Vector Problem.
IACR Cryptol. ePrint Arch.
Tadanori Teruya, Kenji Kashiwabara, Goichiro Hanaoka
2018 C conf
Formal Treatment of Verifiable Privacy-Preserving Data-Aggregation Protocols.
ProvSec
Satoshi Yasuda, Yoshihiro Koseki, Yusuke Sakai, Fuyuki Kitagawa, Yutaka Kawai, Goichiro Hanaoka
2018 Misc conf
Fully Anonymous Group Signature with Verifier-Local Revocation.
SCN
Ai Ishida, Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka
2018 C conf
Generic Construction of Adaptively Secure Anonymous Key-Policy Attribute-Based Encryption from Public-Key Searchable Encryption.
ISITA
Junichiro Hayata, Masahito Ishizaka, Yusuke Sakai, Goichiro Hanaoka, Kanta Matsuura
2018 J jnl
Generic Constructions for Fully Secure Revocable Attribute-Based Encryption.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kotoko Yamada, Nuttapong Attrapadung, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka
2018 J jnl
Generic Hardness of Inversion on Ring and Its Relation to Self-Bilinear Map.
IACR Cryptol. ePrint Arch.
Takashi Yamakawa, Shota Yamada, Goichiro Hanaoka, Noboru Kunihiro
2018 J jnl
Impossibility on Tamper-Resilient Cryptography with Uniqueness Properties.
IACR Cryptol. ePrint Arch.
Yuyu Wang, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2018 J jnl
MOBIUS: Model-Oblivious Binarized Neural Networks.
CoRR
Hiromasa Kitai, Jason Paul Cruz, Naoto Yanai, Naohisa Nishida, Tatsumi Oba, Yuji Unagami, Tadanori Teruya, Nuttapong Attrapadung, Takahiro Matsuda, Goichiro Hanaoka
2018 — conf
Memory Lower Bounds of Reductions Revisited.
EUROCRYPT (1)
Yuyu Wang, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2018 J jnl
Memory Lower Bounds of Reductions Revisited.
IACR Cryptol. ePrint Arch.
Yuyu Wang, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2018 J jnl
Model Inversion Attacks for Online Prediction Systems: Without Knowledge of Non-Sensitive Attributes.
IEICE Trans. Inf. Syst.
Seira Hidano, Takao Murakami, Shuichi Katsumata, Shinsaku Kiyomoto, Goichiro Hanaoka
2018 J jnl
More Constructions of Re-Splittable Threshold Public Key Encryption.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Satsuya Ohata, Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura
2018 — conf
On the Security of Linear Sketch Schemes against Recovering Attacks.
ICETE (2)
Takahiro Matsuda, Kenta Takahashi, Goichiro Hanaoka
2018 J jnl
Practical attribute-based signature schemes for circuits from bilinear map.
IET Inf. Secur.
Yusuke Sakai, Nuttapong Attrapadung, Goichiro Hanaoka
2018 C conf
Secure Division Protocol and Applications to Privacy-preserving Chi-squared Tests.
ISITA
Hiraku Morita, Nuttapong Attrapadung, Satsuya Ohata, Koji Nuida, Shota Yamada, Kana Shimizu, Goichiro Hanaoka, Kiyoshi Asai
2018 J jnl
Secure Grouping Protocol Using a Deck of Cards.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yuji Hashimoto, Kazumasa Shinagawa, Koji Nuida, Masaki Inamura, Goichiro Hanaoka
2018 Misc conf
Simulation-Based Receiver Selective Opening CCA Secure PKE from Standard Computational Assumptions.
SCN
Keisuke Hara, Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2018 J jnl
Simulation-based Receiver Selective Opening CCA Secure PKE from Standard Computational Assumptions.
IACR Cryptol. ePrint Arch.
Keisuke Hara, Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2018 J jnl
Tag-KEM/DEM Framework for Public-Key Encryption with Non-Interactive Opening.
IEICE Trans. Inf. Syst.
Yusuke Sakai, Takahiro Matsuda, Goichiro Hanaoka
2018 C conf
Token-Based Multi-input Functional Encryption.
ProvSec
Nuttapong Attrapadung, Goichiro Hanaoka, Takato Hirano, Yutaka Kawai, Yoshihiro Koseki, Jacob C. N. Schuldt
2018 J jnl
Toward Finite-Runtime Card-Based Protocol for Generating a Hidden Random Permutation without Fixed Points.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yuji Hashimoto, Koji Nuida, Kazumasa Shinagawa, Masaki Inamura, Goichiro Hanaoka
2018 C conf
Tree-based Secure Comparison of Secret Shared Data.
ISITA
Hiraku Morita, Nuttapong Attrapadung, Satsuya Ohata, Shota Yamada, Koji Nuida, Goichiro Hanaoka
2017 Misc conf
A Public-Key Encryption Scheme Based on Non-linear Indeterminate Equations.
SAC
Koichiro Akiyama, Yasuhiro Goto, Shinya Okumura, Tsuyoshi Takagi, Koji Nuida, Goichiro Hanaoka
2017 J jnl
A Public-key Encryption Scheme Based on Non-linear Indeterminate Equations (Giophantus).
IACR Cryptol. ePrint Arch.
Koichiro Akiyama, Yasuhiro Goto, Shinya Okumura, Tsuyoshi Takagi, Koji Nuida, Goichiro Hanaoka, Hideo Shimizu, Yasuhiko Ikematsu
2017 — ch.
A Survey on Identity-Based Encryption from Lattices.
CREST Crypto-Math Project
Goichiro Hanaoka, Shota Yamada
2017 C conf
A Taxonomy of Secure Two-Party Comparison Protocols and Efficient Constructions.
PST
Nuttapong Attrapadung, Goichiro Hanaoka, Shinsaku Kiyomoto, Tomoaki Mimoto, Jacob C. N. Schuldt
2017 J jnl
A privacy-enhanced access log management mechanism in SSO systems from nominative signatures.
Int. J. Appl. Cryptogr.
Sanami Nakagawa, Takashi Nishide, Eiji Okamoto, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Akihisa Kodate
2017 J jnl
Card-Based Protocols Using Regular Polygon Cards.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kazumasa Shinagawa, Takaaki Mizuki, Jacob C. N. Schuldt, Koji Nuida, Naoki Kanayama, Takashi Nishide, Goichiro Hanaoka, Eiji Okamoto
2017 J jnl
Compact public key encryption without full random oracles.
Pervasive Mob. Comput.
Kazuki Yoneyama, Goichiro Hanaoka
2017 — conf
Generic Constructions for Fully Secure Revocable Attribute-Based Encryption.
ESORICS (2)
Kotoko Yamada, Nuttapong Attrapadung, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka
2017 J jnl
Group Signature with Deniability: How to Disavow a Signature.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka
2017 J jnl
How to Make Traitor Tracing Schemes Secure against a Content Comparison Attack in Actual Services.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai
2017 — conf
Key Management for Versatile Pay-TV Services.
STM
Kazuto Ogawa, Sakurako Tamura, Goichiro Hanaoka
2017 C conf
Model Inversion Attacks for Prediction Systems: Without Knowledge of Non-Sensitive Attributes.
PST
Seira Hidano, Takao Murakami, Shuichi Katsumata, Shinsaku Kiyomoto, Goichiro Hanaoka
2017 J jnl
New Security Proof for the Boneh-Boyen IBE: Tight Reduction in Unbounded Multi-Challenge Security.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Nuttapong Attrapadung, Goichiro Hanaoka, Shota Yamada
2017 J jnl
On the Security of Non-Interactive Key Exchange against Related-Key Attacks.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Hiraku Morita, Jacob C. N. Schuldt, Takahiro Matsuda, Goichiro Hanaoka, Tetsu Iwata
2017 J jnl
On the Security of Schnorr Signatures, DSA, and ElGamal Signatures against Related-Key Attacks.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Hiraku Morita, Jacob C. N. Schuldt, Takahiro Matsuda, Goichiro Hanaoka, Tetsu Iwata
2017 J jnl
Partially Wildcarded Ciphertext-Policy Attribute-Based Encryption and Its Performance Evaluation.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Go Ohtake, Kazuto Ogawa, Goichiro Hanaoka, Shota Yamada, Kohei Kasamatsu, Takashi Yamakawa, Hideki Imai
2017 J jnl
Private Similarity Searchable Encryption for Euclidean Distance.
IEICE Trans. Inf. Syst.
Yuji Unagami, Natsume Matsuzaki, Shota Yamada, Nuttapong Attrapadung, Takahiro Matsuda, Goichiro Hanaoka
2017 J jnl
Provably Secure Gateway Threshold Password-Based Authenticated Key Exchange Secure against Undetectable On-Line Dictionary Attack.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yukou Kobayashi, Naoto Yanai, Kazuki Yoneyama, Takashi Nishide, Goichiro Hanaoka, Kwangjo Kim, Eiji Okamoto
2017 — conf
Secure Grouping Protocol Using a Deck of Cards.
ICITS
Yuji Hashimoto, Kazumasa Shinagawa, Koji Nuida, Masaki Inamura, Goichiro Hanaoka
2017 J jnl
Secure Grouping Protocol Using a Deck of Cards.
CoRR
Yuji Hashimoto, Kazumasa Shinagawa, Koji Nuida, Masaki Inamura, Goichiro Hanaoka
2017 J jnl
Self-Bilinear Map on Unknown Order Groups from Indistinguishability Obfuscation and Its Applications.
Algorithmica
Takashi Yamakawa, Shota Yamada, Goichiro Hanaoka, Noboru Kunihiro
2017 J jnl
Signature Schemes with a Fuzzy Private Key.
IACR Cryptol. ePrint Arch.
Kenta Takahashi, Takahiro Matsuda, Takao Murakami, Goichiro Hanaoka, Masakatsu Nishigaki
2017 J jnl
Signatures from Trapdoor Commitments with Strong Openings.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Goichiro Hanaoka, Jacob C. N. Schuldt
2016 J jnl
A limitation on security evaluation of cryptographic primitives with fixed keys.
Secur. Commun. Networks
Yutaka Kawai, Goichiro Hanaoka, Kazuo Ohta, Noboru Kunihiro
2016 — conf
Adversary-Dependent Lossy Trapdoor Function from Hardness of Factoring Semi-smooth RSA Subgroup Moduli.
CRYPTO (2)
Takashi Yamakawa, Shota Yamada, Goichiro Hanaoka, Noboru Kunihiro
2016 J jnl
Adversary-dependent Lossy Trapdoor Function from Hardness of Factoring Semi-smooth RSA Subgroup Moduli.
IACR Cryptol. ePrint Arch.
Takashi Yamakawa, Shota Yamada, Goichiro Hanaoka, Noboru Kunihiro
2016 B conf
Attribute Based Encryption with Direct Efficiency Tradeoff.
ACNS
Nuttapong Attrapadung, Goichiro Hanaoka, Tsutomu Matsumoto, Tadanori Teruya, Shota Yamada
2016 Misc conf
Attribute-Based Encryption for Range Attributes.
SCN
Nuttapong Attrapadung, Goichiro Hanaoka, Kazuto Ogawa, Go Ohtake, Hajime Watanabe, Shota Yamada
2016 — conf
Attribute-Based Signatures for Circuits from Bilinear Map.
Public Key Cryptography (1)
Yusuke Sakai, Nuttapong Attrapadung, Goichiro Hanaoka
2016 J jnl
Attribute-Based Signatures for Circuits from Bilinear Map.
IACR Cryptol. ePrint Arch.
Yusuke Sakai, Nuttapong Attrapadung, Goichiro Hanaoka
2016 C conf
Committed AND protocol using three cards with more handy shuffle.
ISITA
Kazumasa Shinagawa, Koji Nuida, Takashi Nishide, Goichiro Hanaoka, Eiji Okamoto
2016 J jnl
Constructions of dynamic and non-dynamic threshold public-key encryption schemes with decryption consistency.
Theor. Comput. Sci.
Yusuke Sakai, Keita Emura, Jacob C. N. Schuldt, Goichiro Hanaoka, Kazuo Ohta
2016 J jnl
Convertible Nominative Signatures from Standard Assumptions without Random Oracles.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Goichiro Hanaoka, Jacob C. N. Schuldt
2016 J jnl
Efficient key encapsulation mechanisms with tight security reductions to standard assumptions in the two security models.
Secur. Commun. Networks
Yoshikazu Hanatani, Goichiro Hanaoka, Takahiro Matsuda, Takashi Yamakawa
2016 J jnl
Fail-Stop Signatures for Multiple-Signers: Definitions, Constructions, and Their Extensions.
J. Inf. Process.
Nobuaki Kitajima, Naoto Yanai, Takashi Nishide, Goichiro Hanaoka, Eiji Okamoto
2016 B conf
Fuzzy Signatures: Relaxing Requirements and a New Construction.
ACNS
Takahiro Matsuda, Kenta Takahashi, Takao Murakami, Goichiro Hanaoka
2016 — conf
Generalized Hardness Assumption for Self-bilinear Map with Auxiliary Information.
ACISP (2)
Takashi Yamakawa, Goichiro Hanaoka, Noboru Kunihiro
2016 B conf
Group Signature with Deniability: How to Disavow a Signature.
CANS
Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka
2016 — conf
How to Obtain Fully Structure-Preserving (Automorphic) Signatures from Structure-Preserving Ones.
ASIACRYPT (2)
Yuyu Wang, Zongyang Zhang, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2016 J jnl
How to Obtain Fully Structure-Preserving (Automorphic) Signatures from Structure-Preserving Ones.
IACR Cryptol. ePrint Arch.
Yuyu Wang, Zongyang Zhang, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2016 C conf
On signatures with tight security in the multi-user setting.
ISITA
Goichiro Hanaoka, Jacob C. N. Schuldt
2016 — conf
On the Key Dependent Message Security of the Fujisaki-Okamoto Constructions.
Public Key Cryptography (1)
Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2016 J jnl
On the Key Dependent Message Security of the Fujisaki-Okamoto Constructions.
IACR Cryptol. ePrint Arch.
Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2016 C conf
Private similarity searchable encryption for Euclidean distance.
ISITA
Yuji Unagami, Natsume Matsuzaki, Shota Yamada, Nuttapong Attrapadung, Takahiro Matsuda, Goichiro Hanaoka
2016 — ed.
Proceedings of the 3rd ACM International Workshop on ASIA Public-Key Cryptography, AsiaPKC@AsiaCCS, Xi'an, China, May 30 - June 03, 2016
AsiaPKC@AsiaCCS
Keita Emura, Goichiro Hanaoka, Rui Zhang
2016 J jnl
Secure Computation Protocols Using Polarizing Cards.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kazumasa Shinagawa, Takaaki Mizuki, Jacob C. N. Schuldt, Koji Nuida, Naoki Kanayama, Takashi Nishide, Goichiro Hanaoka, Eiji Okamoto
2016 J jnl
Shortening the Libert-Peters-Yung Revocable Group Signature Scheme by Using the Random Oracle Methodology.
IACR Cryptol. ePrint Arch.
Kazuma Ohara, Keita Emura, Goichiro Hanaoka, Ai Ishida, Kazuo Ohta, Yusuke Sakai
2016 Misc conf
Signatures Resilient to Uninvertible Leakage.
SCN
Yuyu Wang, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2016 C conf
Signatures from trapdoor commitments with strong openings.
ISITA
Goichiro Hanaoka, Jacob C. N. Schuldt
2016 — conf
Size-Hiding Computation for Multiple Parties.
ASIACRYPT (2)
Kazumasa Shinagawa, Koji Nuida, Takashi Nishide, Goichiro Hanaoka, Eiji Okamoto
2016 C conf
Tag-KEM/DEM framework for public-key encryption with non-interactive opening.
ISITA
Yusuke Sakai, Takahiro Matsuda, Goichiro Hanaoka
2016 J jnl
Time-specific encryption from forward-secure encryption: generic and direct constructions.
Int. J. Inf. Sec.
Kohei Kasamatsu, Takahiro Matsuda, Keita Emura, Nuttapong Attrapadung, Goichiro Hanaoka, Hideki Imai
2016 — conf
Towards User-Friendly Cryptography.
Mycrypt
Goichiro Hanaoka
2016 — conf
Trading Plaintext-Awareness for Simulatability to Achieve Chosen Ciphertext Security.
Public Key Cryptography (1)
Takahiro Matsuda, Goichiro Hanaoka
2016 J jnl
Trading Plaintext-Awareness for Simulatability to Achieve Chosen Ciphertext Security.
IACR Cryptol. ePrint Arch.
Takahiro Matsuda, Goichiro Hanaoka
2016 — conf
Unconditionally Secure Revocable Storage: Tight Bounds, Optimal Construction, and Robustness.
ICITS
Yohei Watanabe, Goichiro Hanaoka, Junji Shikata
2016 J jnl
Unconditionally Secure Revocable Storage: Tight Bounds, Optimal Construction, and Robustness.
IACR Cryptol. ePrint Arch.
Yohei Watanabe, Goichiro Hanaoka, Junji Shikata
2015 — conf
A Framework for Identity-Based Encryption with Almost Tight Security.
ASIACRYPT (1)
Nuttapong Attrapadung, Goichiro Hanaoka, Shota Yamada
2015 J jnl
A Framework for Identity-Based Encryption with Almost Tight Security.
IACR Cryptol. ePrint Arch.
Nuttapong Attrapadung, Goichiro Hanaoka, Shota Yamada
2015 B conf
A Signature Scheme with a Fuzzy Private Key.
ACNS
Kenta Takahashi, Takahiro Matsuda, Takao Murakami, Goichiro Hanaoka, Masakatsu Nishigaki
2015 — conf
An Asymptotically Optimal Method for Converting Bit Encryption to Multi-Bit Encryption.
ASIACRYPT (1)
Takahiro Matsuda, Goichiro Hanaoka
2015 J jnl
An Asymptotically Optimal Method for Converting Bit Encryption to Multi-Bit Encryption.
IACR Cryptol. ePrint Arch.
Takahiro Matsuda, Goichiro Hanaoka
2015 C conf
Black-Box Separations of Hash-and-Sign Signatures in the Non-Programmable Random Oracle Model.
ProvSec
Zongyang Zhang, Yu Chen, Sherman S. M. Chow, Goichiro Hanaoka, Zhenfu Cao, Yunlei Zhao
2015 B conf
Completeness of Single-Bit Projection-KDM Security for Public Key Encryption.
CT-RSA
Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2015 — conf
Constructing and Understanding Chosen Ciphertext Security via Puncturable Key Encapsulation Mechanisms.
TCC (1)
Takahiro Matsuda, Goichiro Hanaoka
2015 J jnl
Constructing and Understanding Chosen Ciphertext Security via Puncturable Key Encapsulation Mechanisms.
IACR Cryptol. ePrint Arch.
Takahiro Matsuda, Goichiro Hanaoka
2015 — conf
Constructions of Fail-Stop Signatures for Multi-signer Setting.
AsiaJCIS
Nobuaki Kitajima, Naoto Yanai, Takashi Nishide, Goichiro Hanaoka, Eiji Okamoto
2015 — conf
Content and Key Management to Trace Traitors in Broadcasting Services.
STM
Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai
2015 — conf
Conversions Among Several Classes of Predicate Encryption and Applications to ABE with Various Compactness Tradeoffs.
ASIACRYPT (1)
Nuttapong Attrapadung, Goichiro Hanaoka, Shota Yamada
2015 J jnl
Conversions among Several Classes of Predicate Encryption and Their Applications.
IACR Cryptol. ePrint Arch.
Shota Yamada, Nuttapong Attrapadung, Goichiro Hanaoka
2015 J jnl
Disavowable Public Key Encryption with Non-Interactive Opening.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka
2015 A conf
Disavowable Public Key Encryption with Non-interactive Opening.
AsiaCCS
Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka
2015 Misc conf
Dynamic Threshold Public-Key Encryption with Decryption Consistency from Static Assumptions.
ACISP
Yusuke Sakai, Keita Emura, Jacob C. N. Schuldt, Goichiro Hanaoka, Kazuo Ohta
2015 C conf
Gateway Threshold Password-based Authenticated Key Exchange Secure against Undetectable On-line Dictionary Attack.
SECRYPT
Yukou Kobayashi, Naoto Yanai, Kazuki Yoneyama, Takashi Nishide, Goichiro Hanaoka, Kwangjo Kim, Eiji Okamoto
2015 J jnl
Group Signature with Deniability: How to Disavow a Signature.
IACR Cryptol. ePrint Arch.
Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka
2015 J jnl
Information-theoretically secure oblivious polynomial evaluation in the commodity-based model.
Int. J. Inf. Sec.
Rafael Tonicelli, Anderson C. A. Nascimento, Rafael Dowsley, Jörn Müller-Quade, Hideki Imai, Goichiro Hanaoka, Akira Otsuka
2015 C conf
Multi-party Computation with Small Shuffle Complexity Using Regular Polygon Cards.
ProvSec
Kazumasa Shinagawa, Takaaki Mizuki, Jacob C. N. Schuldt, Koji Nuida, Naoki Kanayama, Takashi Nishide, Goichiro Hanaoka, Eiji Okamoto
2015 Misc conf
On Limitations and Alternatives of Privacy-Preserving Cryptographic Protocols for Genomic Data.
IWSEC
Tadanori Teruya, Koji Nuida, Kana Shimizu, Goichiro Hanaoka
2015 Misc conf
On the Security of the Schnorr Signature Scheme and DSA Against Related-Key Attacks.
ICISC
Hiraku Morita, Jacob C. N. Schuldt, Takahiro Matsuda, Goichiro Hanaoka, Tetsu Iwata
2015 J jnl
On the Security of the Schnorr Signature Scheme and DSA against Related-Key Attacks.
IACR Cryptol. ePrint Arch.
Hiraku Morita, Jacob C. N. Schuldt, Takahiro Matsuda, Goichiro Hanaoka, Tetsu Iwata
2015 J jnl
Privacy-preserving search for chemical compound databases.
BMC Bioinform.
Kana Shimizu, Koji Nuida, Hiromi Arai, Shigeo Mitsunari, Nuttapong Attrapadung, Michiaki Hamada, Koji Tsuda, Takatsugu Hirokawa, Jun Sakuma, Goichiro Hanaoka, Kiyoshi Asai
2015 J jnl
Public-Key Encryption Schemes with Bounded CCA Security and Optimal Ciphertext Length Based on the CDH and HDH Assumptions.
Comput. J.
Mayana Pereira, Rafael Dowsley, Anderson C. A. Nascimento, Goichiro Hanaoka
2015 B conf
Re-Encryption Verifiability: How to Detect Malicious Activities of a Proxy in Proxy Re-Encryption.
CT-RSA
Satsuya Ohata, Yutaka Kawai, Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura
2015 J jnl
Re-encryption Verifiability: How to Detect Malicious Activities of a Proxy in Proxy Re-encryption.
IACR Cryptol. ePrint Arch.
Satsuya Ohata, Yutaka Kawai, Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura
2015 J jnl
Revocable Group Signature with Constant-Size Revocation List.
Comput. J.
Nuttapong Attrapadung, Keita Emura, Goichiro Hanaoka, Yusuke Sakai
2015 Misc conf
Secure Multi-Party Computation Using Polarizing Cards.
IWSEC
Kazumasa Shinagawa, Takaaki Mizuki, Jacob C. N. Schuldt, Koji Nuida, Naoki Kanayama, Takashi Nishide, Goichiro Hanaoka, Eiji Okamoto
2015 J jnl
Self-bilinear Map on Unknown Order Groups from Indistinguishability Obfuscation and Its Applications.
IACR Cryptol. ePrint Arch.
Takashi Yamakawa, Shota Yamada, Goichiro Hanaoka, Noboru Kunihiro
2014 — conf
A Framework and Compact Constructions for Non-monotonic Attribute-Based Encryption.
Public Key Cryptography
Shota Yamada, Nuttapong Attrapadung, Goichiro Hanaoka, Noboru Kunihiro
2014 J jnl
A Framework and Compact Constructions for Non-monotonic Attribute-Based Encryption.
IACR Cryptol. ePrint Arch.
Shota Yamada, Nuttapong Attrapadung, Goichiro Hanaoka, Noboru Kunihiro
2014 B conf
A Privacy-Enhanced Access Log Management Mechanism in SSO Systems from Nominative Signatures.
TrustCom
Sanami Nakagawa, Keita Emura, Goichiro Hanaoka, Akihisa Kodate, Takashi Nishide, Eiji Okamoto, Yusuke Sakai
2014 B conf
A Revocable Group Signature Scheme from Identity-Based Revocation Techniques: Achieving Constant-Size Revocation List.
ACNS
Nuttapong Attrapadung, Keita Emura, Goichiro Hanaoka, Yusuke Sakai
2014 C conf
A Short Fail-Stop Signature Scheme from Factoring.
ProvSec
Takashi Yamakawa, Nobuaki Kitajima, Takashi Nishide, Goichiro Hanaoka, Eiji Okamoto
2014 — ed.
ASIAPKC'14, Proceedings of the 2nd ACM Wookshop on ASIA Public-Key Cryptography, June 3, 2014, Kyoto, Japan
AsiaPKC@AsiaCCS
Keita Emura, Goichiro Hanaoka, Yunlei Zhao
2014 B conf
All-but-One Dual Projective Hashing and Its Applications.
ACNS
Zongyang Zhang, Yu Chen, Sherman S. M. Chow, Goichiro Hanaoka, Zhenfu Cao, Yunlei Zhao
2014 Misc conf
Chosen Ciphertext Security on Hard Membership Decision Groups: The Case of Semi-smooth Subgroups of Quadratic Residues.
SCN
Takashi Yamakawa, Shota Yamada, Koji Nuida, Goichiro Hanaoka, Noboru Kunihiro
2014 B conf
Chosen Ciphertext Security via Point Obfuscation.
TCC
Takahiro Matsuda, Goichiro Hanaoka
2014 J jnl
Chosen Ciphertext Security via Point Obfuscation.
IACR Cryptol. ePrint Arch.
Takahiro Matsuda, Goichiro Hanaoka
2014 — conf
Chosen Ciphertext Security via UCE.
Public Key Cryptography
Takahiro Matsuda, Goichiro Hanaoka
2014 C conf
Compact Public Key Encryption with Minimum Ideal Property of Hash Functions.
ProvSec
Kazuki Yoneyama, Goichiro Hanaoka
2014 Misc conf
Efficient Key Dependent Message Security Amplification Against Chosen Ciphertext Attacks.
ICISC
Fuyuki Kitagawa, Takahiro Matsuda, Goichiro Hanaoka, Keisuke Tanaka
2014 J jnl
Group signature implies public-key encryption with non-interactive opening.
Int. J. Inf. Sec.
Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Jacob C. N. Schuldt
2014 Misc conf
More Constructions of Re-splittable Threshold Public Key Encryption.
IWSEC
Satsuya Ohata, Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura
2014 C conf
New Security Proof for the Boneh-Boyen IBE: Tight Reduction in Unbounded Multi-challenge Security.
ICICS
Nuttapong Attrapadung, Goichiro Hanaoka, Shota Yamada
2014 — conf
Self-bilinear Map on Unknown Order Groups from Indistinguishability Obfuscation and Its Applications.
CRYPTO (2)
Takashi Yamakawa, Shota Yamada, Goichiro Hanaoka, Noboru Kunihiro
2014 J jnl
Tree-Structured Composition of Homomorphic Encryption: How to Weaken Underlying Assumptions.
IACR Cryptol. ePrint Arch.
Koji Nuida, Goichiro Hanaoka, Takahiro Matsuda
2014 J jnl
Weakened Anonymity of Group Signature and Its Application to Subscription Services.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kazuto Ogawa, Go Ohtake, Arisa Fujii, Goichiro Hanaoka
2013 A conf
A group signature scheme with unbounded message-dependent opening.
AsiaCCS
Kazuma Ohara, Yusuke Sakai, Keita Emura, Goichiro Hanaoka
2013 Misc conf
Achieving Chosen Ciphertext Security from Detectable Public Key Encryption Efficiently via Hybrid Encryption.
IWSEC
Takahiro Matsuda, Goichiro Hanaoka
2013 — conf
Chosen Ciphertext Secure Keyed-Homomorphic Public-Key Encryption.
Public Key Cryptography
Keita Emura, Goichiro Hanaoka, Go Ohtake, Takahiro Matsuda, Shota Yamada
2013 J jnl
Chosen Ciphertext Secure Keyed-Homomorphic Public-Key Encryption.
IACR Cryptol. ePrint Arch.
Keita Emura, Goichiro Hanaoka, Koji Nuida, Go Ohtake, Takahiro Matsuda, Shota Yamada
2013 — conf
Efficient variants of the Naor-Yung and Dolev-Dwork-Naor transforms for CCA secure key encapsulation mechanism.
AsiaPKC@AsiaCCS
Takashi Yamakawa, Shota Yamada, Takahiro Matsuda, Goichiro Hanaoka, Noboru Kunihiro
2013 — conf
Key Encapsulation Mechanisms from Extractable Hash Proof Systems, Revisited.
Public Key Cryptography
Takahiro Matsuda, Goichiro Hanaoka
2013 J jnl
Methods for Restricting Message Space in Public-Key Encryption.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Yutaka Kawai, Kazumasa Omote
2013 J jnl
On the Security of Pseudorandomized Information-Theoretically Secure Schemes.
IEEE Trans. Inf. Theory
Koji Nuida, Goichiro Hanaoka
2013 — conf
On the properties of public key encryption from group signatures.
AsiaPKC@AsiaCCS
Goichiro Hanaoka
2013 C conf
Partially Wildcarded Attribute-based Encryption and Its Efficient Construction.
SECRYPT
Go Ohtake, Yuki Hironaka, Kenjiro Kai, Yosuke Endo, Goichiro Hanaoka, Hajime Watanabe, Shota Yamada, Kohei Kasamatsu, Takashi Yamakawa, Hideki Imai
2013 — ed.
Public-Key Cryptography - PKC 2013 - 16th International Conference on Practice and Theory in Public-Key Cryptography, Nara, Japan, February 26 - March 1, 2013. Proceedings
Public Key Cryptography
Kaoru Kurosawa, Goichiro Hanaoka
2013 C conf
Reducing Public Key Sizes in Bounded CCA-Secure KEMs with Optimal Ciphertext Length.
ISC
Takashi Yamakawa, Shota Yamada, Takahiro Matsuda, Goichiro Hanaoka, Noboru Kunihiro
2012 Misc ed.
Advances in Information and Computer Security - 7th International Workshop on Security, IWSEC 2012, Fukuoka, Japan, November 7-9, 2012. Proceedings
IWSEC
Goichiro Hanaoka, Toshihiro Yamauchi
2012 Misc conf
Ciphertext Policy Multi-dimensional Range Encryption.
ICISC
Kohei Kasamatsu, Takahiro Matsuda, Goichiro Hanaoka, Hideki Imai
2012 B conf
Generic Construction of Chosen Ciphertext Secure Proxy Re-Encryption.
CT-RSA
Goichiro Hanaoka, Yutaka Kawai, Noboru Kunihiro, Takahiro Matsuda, Jian Weng, Rui Zhang, Yunlei Zhao
2012 C conf
Group Signatures with Message-Dependent Opening.
Pairing
Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Yutaka Kawai, Takahiro Matsuda, Kazumasa Omote
2012 A* conf
On the Impossibility of Constructing Efficient Key Encapsulation and Programmable Hash Functions in Prime Order Groups.
CRYPTO
Goichiro Hanaoka, Takahiro Matsuda, Jacob C. N. Schuldt
2012 J jnl
On the Impossibility of Constructing Efficient Key Encapsulation and Programmable Hash Functions in Prime Order Groups.
IACR Cryptol. ePrint Arch.
Goichiro Hanaoka, Takahiro Matsuda, Jacob C. N. Schuldt
2012 — conf
On the Security of Dynamic Group Signatures: Preventing Signature Hijacking.
Public Key Cryptography
Yusuke Sakai, Jacob C. N. Schuldt, Keita Emura, Goichiro Hanaoka, Kazuo Ohta
2012 J jnl
On the Security of Dynamic Group Signatures: Preventing Signature Hijacking.
IACR Cryptol. ePrint Arch.
Yusuke Sakai, Jacob C. N. Schuldt, Keita Emura, Goichiro Hanaoka, Kazuo Ohta
2012 — conf
Relations between Constrained and Bounded Chosen Ciphertext Security for Key Encapsulation Mechanisms.
Public Key Cryptography
Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura
2012 — conf
Solving a Discrete Logarithm Problem with Auxiliary Input on a 160-Bit Elliptic Curve.
Public Key Cryptography
Yumi Sakemi, Goichiro Hanaoka, Tetsuya Izu, Masahiko Takenaka, Masaya Yasuda
2012 — conf
Space Efficient Signature Schemes from the RSA Assumption.
Public Key Cryptography
Shota Yamada, Goichiro Hanaoka, Noboru Kunihiro
2012 Misc conf
Time-Specific Encryption from Forward-Secure Encryption.
SCN
Kohei Kasamatsu, Takahiro Matsuda, Keita Emura, Nuttapong Attrapadung, Goichiro Hanaoka, Hideki Imai
2012 B conf
Two-Dimensional Representation of Cover Free Families and Its Applications: Short Signatures and More.
CT-RSA
Shota Yamada, Goichiro Hanaoka, Noboru Kunihiro
2012 — conf
Verifiable Predicate Encryption and Applications to CCA Security and Anonymous Predicate Authentication.
Public Key Cryptography
Shota Yamada, Nuttapong Attrapadung, Bagus Santoso, Jacob C. N. Schuldt, Goichiro Hanaoka, Noboru Kunihiro
2011 J jnl
An Efficient Authentication for Lightweight Devices by Perfecting Zero-Knowledgeness.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Bagus Santoso, Kazuo Ohta, Kazuo Sakiyama, Goichiro Hanaoka
2011 — conf
Generic Constructions for Chosen-Ciphertext Secure Attribute Based Encryption.
Public Key Cryptography
Shota Yamada, Nuttapong Attrapadung, Goichiro Hanaoka, Noboru Kunihiro
2011 J jnl
How to Shorten a Ciphertext of Reproducible Key Encapsulation Mechanisms in the Random Oracle Model.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yusuke Sakai, Goichiro Hanaoka, Kaoru Kurosawa, Kazuo Ohta
2011 B conf
Non-transferable User Certification Secure against Authority Information Leaks and Impersonation Attacks.
ACNS
Jacob C. N. Schuldt, Goichiro Hanaoka
2011 — conf
On the Security of a Bidirectional Proxy Re-encryption Scheme from PKC 2010.
Public Key Cryptography
Jian Weng, Yunlei Zhao, Goichiro Hanaoka
2011 J jnl
Secure Broadcast System with Simultaneous Individual Messaging.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Arisa Fujii, Go Ohtake, Goichiro Hanaoka, Nuttapong Attrapadung, Hajime Watanabe, Kazuto Ogawa, Hideki Imai
2011 J jnl
Sequential Bitwise Sanitizable Signature Schemes.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Goichiro Hanaoka, Shoichi Hirose, Atsuko Miyaji, Kunihiko Miyazaki, Bagus Santoso, Peng Yang
2011 Misc conf
Towards Restricting Plaintext Space in Public Key Encryption.
IWSEC
Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Yutaka Kawai, Kazumasa Omote
2011 J jnl
Universally Composable and Statistically Secure Verifiable Secret Sharing Scheme Based on Pre-Distributed Data.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Rafael Dowsley, Jörn Müller-Quade, Akira Otsuka, Goichiro Hanaoka, Hideki Imai, Anderson C. A. Nascimento
2010 Misc conf
A Generic Method for Reducing Ciphertext Length of Reproducible KEMs in the RO Model.
IWSEC
Yusuke Sakai, Goichiro Hanaoka, Kaoru Kurosawa, Kazuo Ohta
2010 — ch.
Applications of Signcryption.
Practical Signcryption
Yang Cui, Goichiro Hanaoka
2010 J jnl
Between Hashed DH and Computational DH: Compact Encryption from Weaker Assumption.
IACR Cryptol. ePrint Arch.
Goichiro Hanaoka, Kaoru Kurosawa
2010 J jnl
Between Hashed DH and Computational DH: Compact Encryption from Weaker Assumption.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Goichiro Hanaoka, Kaoru Kurosawa
2010 C conf
Efficient Broadcast Encryption with Personalized Messages.
ProvSec
Go Ohtake, Goichiro Hanaoka, Kazuto Ogawa
2010 J jnl
Efficient Provider Authentication for Bidirectional Broadcasting Service.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Go Ohtake, Goichiro Hanaoka, Kazuto Ogawa
2010 Misc conf
Generic Constructions of Parallel Key-Insulated Encryption.
SCN
Goichiro Hanaoka, Jian Weng
2010 J jnl
Generic Constructions of Parallel Key-Insulated Encryption: Stronger Security Model and Novel Schemes.
IACR Cryptol. ePrint Arch.
Goichiro Hanaoka, Jian Weng
2010 Misc conf
Group Signature Implies PKE with Non-interactive Opening and Threshold PKE.
IWSEC
Keita Emura, Goichiro Hanaoka, Yusuke Sakai
2010 B conf
Improving Efficiency of an ‘On the Fly' Identification Scheme by Perfecting Zero-Knowledgeness.
CT-RSA
Bagus Santoso, Kazuo Ohta, Kazuo Sakiyama, Goichiro Hanaoka
2010 J jnl
On the Security of Pseudorandomized Information-Theoretically Secure Schemes.
IACR Cryptol. ePrint Arch.
Koji Nuida, Goichiro Hanaoka
2010 J jnl
Public Key Encryption Schemes from the (B)CDH Assumption with Better Efficiency.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Shota Yamada, Yutaka Kawai, Goichiro Hanaoka, Noboru Kunihiro
2010 C conf
Public Key Encryption Schemes with Bounded CCA Security and Optimal Ciphertext Length Based on the CDH Assumption.
ISC
Mayana Pereira, Rafael Dowsley, Goichiro Hanaoka, Anderson C. A. Nascimento
2010 Misc conf
Round-Optimal Deniable Ring Authentication in the Presence of Big Brother.
WISA
Rafael Dowsley, Goichiro Hanaoka, Hideki Imai, Anderson C. A. Nascimento
2010 C conf
Toward an Easy-to-Understand Structure for Achieving Chosen Ciphertext Security from the Decisional Diffie-Hellman Assumption.
ProvSec
Shota Yamada, Goichiro Hanaoka, Noboru Kunihiro
2009 J jnl
A Trade-off Traitor Tracing Scheme.
IEICE Trans. Inf. Syst.
Go Ohtake, Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai
2009 A conf
A generic construction of useful client puzzles.
AsiaCCS
Rui Zhang, Goichiro Hanaoka, Hideki Imai
2009 B conf
An Efficient Encapsulation Scheme from Near Collision Resistant Pseudorandom Generators and Its Application to IBE-to-PKE Transformations.
CT-RSA
Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura, Hideki Imai
2009 — conf
An Improvement of Pseudorandomization against Unbounded Attack Algorithms - The Case of Fingerprint Codes.
ICITS
Koji Nuida, Goichiro Hanaoka
2009 J jnl
CCA-Secure Public Key Encryption without Group-Dependent Hash Functions.
IEICE Trans. Inf. Syst.
Yang Cui, Goichiro Hanaoka, Hideki Imai
2009 J jnl
Formal Security Treatments for IBE-to-Signature Transformation: Relations among Security Notions.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yang Cui, Eiichiro Fujisaki, Goichiro Hanaoka, Hideki Imai, Rui Zhang
2009 J jnl
Information-Theoretically Secure Oblivious Polynomial Evaluation in the Commodity-Based Model.
IACR Cryptol. ePrint Arch.
Rafael Tonicelli, Rafael Dowsley, Goichiro Hanaoka, Hideki Imai, Jörn Müller-Quade, Akira Otsuka, Anderson C. A. Nascimento
2009 — conf
On the Security of Pseudorandomized Information-Theoretically Secure Schemes.
ICITS
Koji Nuida, Goichiro Hanaoka
2009 — conf
On the Theoretical Gap between Group Signatures with and without Unlinkability.
AFRICACRYPT
Go Ohtake, Arisa Fujii, Goichiro Hanaoka, Kazuto Ogawa
2009 J jnl
Reducing the Ciphertext Size of Dolev-Dwork-Naor like Public Key Cryptosystems.
IACR Cryptol. ePrint Arch.
Rafael Dowsley, Goichiro Hanaoka, Hideki Imai, Anderson C. A. Nascimento
2009 J jnl
Universally Composable and Statistically Secure Verifiable Secret Sharing Scheme Based on Pre-Distributed Data.
IACR Cryptol. ePrint Arch.
Rafael Dowsley, Jörn Müller-Quade, Akira Otsuka, Goichiro Hanaoka, Hideki Imai, Anderson C. A. Nascimento
2008 Misc conf
A Fuzzy ID-Based Encryption Efficient When Error Rate Is Low.
INDOCRYPT
Jun Furukawa, Nuttapong Attrapadung, Ryuichi Sakai, Goichiro Hanaoka
2008 J jnl
A Strongly Unforgeable Signature under the CDH Assumption without Collision Resistant Hash Functions.
IEICE Trans. Inf. Syst.
Takahiro Matsuda, Nuttapong Attrapadung, Goichiro Hanaoka, Kanta Matsuura, Hideki Imai
2008 — conf
An Efficient Strong Key-Insulated Signature Scheme and Its Application.
EuroPKI
Go Ohtake, Goichiro Hanaoka, Kazuto Ogawa
2008 Misc conf
Chosen Ciphertext Secure Public Key Encryption with a Simple Structure.
IWSEC
Goichiro Hanaoka, Hideki Imai, Kazuto Ogawa, Hajime Watanabe
2008 A conf
Efficient Chosen Ciphertext Secure Public Key Encryption under the Computational Diffie-Hellman Assumption.
ASIACRYPT
Goichiro Hanaoka, Kaoru Kurosawa
2008 J jnl
Efficient Chosen Ciphertext Secure Public Key Encryption under the Computational Diffie-Hellman Assumption.
IACR Cryptol. ePrint Arch.
Goichiro Hanaoka, Kaoru Kurosawa
2008 J jnl
Introduction to the Special Issue on Information Theoretic Security.
IEEE Trans. Inf. Theory
Hideki Imai, Goichiro Hanaoka, Ueli M. Maurer, Yuliang Zheng
2008 J jnl
Invisibly Sanitizable Digital Signature Scheme.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kunihiko Miyazaki, Goichiro Hanaoka, Hideki Imai
2008 Misc conf
Simple CCA-Secure Public Key Encryption from Any Non-Malleable Identity-Based Encryption.
ICISC
Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura, Hideki Imai
2008 — conf
Some Information Theoretic Arguments for Encryption: Non-malleability and Chosen-Ciphertext Security (Invited Talk).
ICITS
Goichiro Hanaoka
2007 C conf
A CDH-Based Strongly Unforgeable Signature Without Collision Resistant Hash Function.
ProvSec
Takahiro Matsuda, Nuttapong Attrapadung, Goichiro Hanaoka, Kanta Matsuura, Hideki Imai
2007 — conf
A Practical Provider Authentication System for Bidirectional Broadcast Service.
KES (3)
Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura, Hideki Imai
2007 — conf
Anonymous Authentication Scheme for Subscription Services.
KES (3)
Arisa Fujii, Go Ohtake, Goichiro Hanaoka, Kazuto Ogawa
2007 — conf
Anonymous Pay-TV System with Secure Revenue Sharing.
KES (3)
Kazuto Ogawa, Goichiro Hanaoka, Kazukuni Kobara, Kanta Matsuura, Hideki Imai
2007 A conf
Bounded CCA2-Secure Encryption.
ASIACRYPT
Ronald Cramer, Goichiro Hanaoka, Dennis Hofheinz, Hideki Imai, Eike Kiltz, Rafael Pass, Abhi Shelat, Vinod Vaikuntanathan
2007 J jnl
Efficient Identity-Based Encryption with Tight Security Reduction.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Nuttapong Attrapadung, Jun Furukawa, Takeshi Gomi, Goichiro Hanaoka, Hideki Imai, Rui Zhang
2007 J jnl
Extension of Broadcasting Service by Using Electronic Tokens.
IEICE Trans. Inf. Syst.
Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai
2007 J jnl
Formal Security Treatments for IBE-to-Signature Transformation: Relations among Security Notions.
IACR Cryptol. ePrint Arch.
Yang Cui, Eiichiro Fujisaki, Goichiro Hanaoka, Hideki Imai, Rui Zhang
2007 C conf
Formal Security Treatments for Signatures from Identity-Based Encryption.
ProvSec
Yang Cui, Eiichiro Fujisaki, Goichiro Hanaoka, Hideki Imai, Rui Zhang
2007 J jnl
Key-Insulated Public Key Encryption with Auxiliary Helper Key: Model, Constructions and Formal Security Proofs.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Thi Lan Anh Phan, Goichiro Hanaoka, Kanta Matsuura, Hideki Imai
2007 Misc conf
Orthogonality between Key Privacy and Data Privacy, Revisited.
Inscrypt
Rui Zhang, Goichiro Hanaoka, Hideki Imai
2007 Misc conf
Trade-Off Traitor Tracing.
INDOCRYPT
Kazuto Ogawa, Go Ohtake, Goichiro Hanaoka, Hideki Imai
2007 J jnl
Traitor Tracing Scheme Secure against Adaptive Key Exposure and its Application to Anywhere TV Service.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai
2007 — conf
Unconditionally Secure Chaffing-and-Winnowing for Multiple Use.
ICITS
Wataru Kitada, Goichiro Hanaoka, Kanta Matsuura, Hideki Imai
2006 J jnl
A Generic Construction of CCA-Secure Cryptosystems without NIZKP for a Bounded Number of Decryption Queries.
IACR Cryptol. ePrint Arch.
Goichiro Hanaoka, Hideki Imai
2006 — conf
A Short Random Fingerprinting Code Against a Small Number of Pirates.
AAECC
Manabu Hagiwara, Goichiro Hanaoka, Hideki Imai
2006 Misc conf
Adaptively Secure Traitor Tracing Against Key Exposure and Its Application to Anywhere TV Service.
ACISP
Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai
2006 — conf
Applying Fujisaki-Okamoto to Identity-Based Encryption.
AAECC
Peng Yang, Takashi Kitagawa, Goichiro Hanaoka, Rui Zhang, Kanta Matsuura, Hideki Imai
2006 A conf
Digitally signed document sanitizing scheme based on bilinear maps.
AsiaCCS
Kunihiko Miyazaki, Goichiro Hanaoka, Hideki Imai
2006 B conf
Efficient Identity-Based Encryption with Tight Security Reduction.
CANS
Nuttapong Attrapadung, Jun Furukawa, Takeshi Gomi, Goichiro Hanaoka, Hideki Imai, Rui Zhang
2006 Misc conf
Generic Transforms to Acquire CCA-Security for Identity Based Encryption: The Cases of FOpkc and REACT.
ACISP
Takashi Kitagawa, Peng Yang, Goichiro Hanaoka, Rui Zhang, Hajime Watanabe, Kanta Matsuura, Hideki Imai
2006 — conf
Parallel Key-Insulated Public Key Encryption.
Public Key Cryptography
Goichiro Hanaoka, Yumiko Hanaoka, Hideki Imai
2006 — conf
Reducing the Spread of Damage of Key Exposures in Key-Insulated Encryption.
VIETCRYPT
Thi Lan Anh Phan, Yumiko Hanaoka, Goichiro Hanaoka, Kanta Matsuura, Hideki Imai
2006 B conf
Relations Among Notions of Security for Identity Based Encryption Schemes.
LATIN
Nuttapong Attrapadung, Yang Cui, David Galindo, Goichiro Hanaoka, Ichiro Hasuo, Hideki Imai, Kanta Matsuura, Peng Yang, Rui Zhang
2006 J jnl
Relations among Notions of Security for Identity Based Encryption Schemes.
Inf. Media Technol.
Peng Yang, Goichiro Hanaoka, Yang Cui, Rui Zhang, Nuttapong Attrapadung, Kanta Matsuura, Hideki Imai
2006 J jnl
Unconditionally Secure Anonymous Encryption and Group Authentication.
Comput. J.
Goichiro Hanaoka, Junji Shikata, Yumiko Hanaoka, Hideki Imai
2006 — conf
Unconditionally Secure Chaffing-and-Winnowing: A Relationship Between Encryption and Authentication.
AAECC
Goichiro Hanaoka, Yumiko Hanaoka, Manabu Hagiwara, Hajime Watanabe, Hideki Imai
2005 J jnl
A Secure Traitor Tracing Scheme against Key Exposure
CoRR
Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai
2005 B conf
A secure traitor tracing scheme against key exposure.
ISIT
Kazuto Ogawa, Goichiro Hanaoka, Hideki Imai
2005 J jnl
Efficient Identity-Based Encryption with Tight Security Reduction.
IACR Cryptol. ePrint Arch.
Nuttapong Attrapadung, Benoît Chevallier-Mames, Jun Furukawa, Takeshi Gomi, Goichiro Hanaoka, Hideki Imai, Rui Zhang
2005 J jnl
How to Break COT-Based Fingerprinting Schemes and Design New One.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
JaeGwi Choi, Goichiro Hanaoka, Kyung Hyune Rhee, Hideki Imai
2005 A conf
Identity-Based Hierarchical Strongly Key-Insulated Encryption and Its Application.
ASIACRYPT
Yumiko Hanaoka, Goichiro Hanaoka, Junji Shikata, Hideki Imai
2005 J jnl
Relations Among Notions of Security for Identity Based Encryption Schemes.
IACR Cryptol. ePrint Arch.
Nuttapong Attrapadung, Yang Cui, Goichiro Hanaoka, Hideki Imai, Kanta Matsuura, Peng Yang, Rui Zhang
2005 — conf
Unconditionally secure signatures and its related schemes.
ICITS
Goichiro Hanaoka
2004 J jnl
Efficient Unconditionally Secure Digital Signatures.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Goichiro Hanaoka, Junji Shikata, Yuliang Zheng, Hideki Imai
2004 J jnl
Identity-Based Hierarchical Strongly Key-Insulated Encryption and Its Application.
IACR Cryptol. ePrint Arch.
Yumiko Hanaoka, Goichiro Hanaoka, Junji Shikata, Hideki Imai
2004 Misc conf
Information Theoretically Secure Oblivious Polynomial Evaluation: Model, Bounds, and Constructions.
ACISP
Goichiro Hanaoka, Hideki Imai, Jörn Müller-Quade, Anderson C. A. Nascimento, Akira Otsuka, Andreas J. Winter
2004 J jnl
Managing Encryption and Key Publication Independently in Digital Rights Management Systems.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Goichiro Hanaoka, Kazuto Ogawa, Itsuro Murota, Go Ohtake, Keigo Majima, Seiichi Gohshi, Kimiyuki Oyamada, Seiichi Namba, Hideki Imai
2004 B conf
On the Security of Cryptosystems with All-or-Nothing Transform.
ACNS
Rui Zhang, Goichiro Hanaoka, Hideki Imai
2004 — conf
On the Security of Multiple Encryption or CCA-security+CCA-security=CCA-security?
Public Key Cryptography
Rui Zhang, Goichiro Hanaoka, Junji Shikata, Hideki Imai
2004 B conf
Unconditionally Non-interactive Verifiable Secret Sharing Secure against Faulty Majorities in the Commodity Based Model.
ACNS
Anderson C. A. Nascimento, Jörn Müller-Quade, Akira Otsuka, Goichiro Hanaoka, Hideki Imai
2003 J jnl
On the Security of Multiple Encryption or CCA-security+CCA-security=CCA-security?
IACR Cryptol. ePrint Arch.
Rui Zhang, Goichiro Hanaoka, Junji Shikata, Hideki Imai
2003 Misc conf
Separating Encryption and Key Issuance in Digital Rights Management Systems.
ACISP
Goichiro Hanaoka, Kazuto Ogawa, Itsuro Murota, Go Ohtake, Keigo Majima, Kimiyuki Oyamada, Seiichi Gohshi, Seiichi Namba, Hideki Imai
2003 C conf
The Role of Arbiters in Asymmetric Authentication Schemes.
ISC
Goichiro Hanaoka, Junji Shikata, Yumiko Hanaoka, Hideki Imai
2003 C conf
Unconditionally Secure Homomorphic Pre-distributed Bit Commitment and Secure Two-Party Computations.
ISC
Anderson C. A. Nascimento, Jörn Müller-Quade, Akira Otsuka, Goichiro Hanaoka, Hideki Imai
2002 J jnl
A Hierarchical Non-interactive Key-Sharing Scheme with Low Memory Size and High Resistance against Collusion Attacks.
Comput. J.
Goichiro Hanaoka, Tsuyoshi Nishioka, Yuliang Zheng, Hideki Imai
2002 J jnl
A Traitor Traceable Conference System with Dynamic Sender.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Goichiro Hanaoka, Junji Shikata, Yuliang Zheng, Hideki Imai
2002 J jnl
An Unconditionally Secure Electronic Cash Scheme with Computational Untraceability.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Akira Otsuka, Goichiro Hanaoka, Junji Shikata, Hideki Imai
2002 B conf
Cryptography with information theoretic security.
ITW
Hideki Imai, Goichiro Hanaoka, Junji Shikata, Akira Otsuka, Anderson C. A. Nascimento
2002 — conf
Efficient and Unconditionally Secure Digital Signatures and a Security Analysis of a Multireceiver Authentication Code.
Public Key Cryptography
Goichiro Hanaoka, Junji Shikata, Yuliang Zheng, Hideki Imai
2002 A* conf
Security Notions for Unconditionally Secure Signature Schemes.
EUROCRYPT
Junji Shikata, Goichiro Hanaoka, Yuliang Zheng, Hideki Imai
2002 C conf
Traceability Schemes for Signed Documents.
ISC
Shoko Yonezawa, Goichiro Hanaoka, Junji Shikata, Hideki Imai
2002 A conf
Unconditionally Secure Anonymous Encryption and Group Authentication.
ASIACRYPT
Goichiro Hanaoka, Junji Shikata, Yumiko Hanaoka, Hideki Imai
2002 C conf
Unconditionally Secure Key Insulated Cryptosystems: Models, Bounds and Constructions.
ICICS
Yumiko Hanaoka, Goichiro Hanaoka, Junji Shikata, Hideki Imai
2001 B conf
Efficient Asymmetric Public-Key Traitor Tracing without Trusted Agents.
CT-RSA
Yuji Watanabe, Goichiro Hanaoka, Hideki Imai
2001 — conf
Efficient Asymmetric Self-Enforcement Scheme with Public Traceability.
Public Key Cryptography
Hirotaka Komaki, Yuji Watanabe, Goichiro Hanaoka, Hideki Imai
2000 — conf
A Practical Implementation of Hierarchically Structured Key Predistribution System and Its Evaluation.
ISW
Daisuke Nojiri, Goichiro Hanaoka, Hideki Imai
2000 A conf
Unconditionally Secure Digital Signature Schemes Admitting Transferability.
ASIACRYPT
Goichiro Hanaoka, Junji Shikata, Yuliang Zheng, Hideki Imai
1999 — conf
A New Digital Signature Scheme on ID-Based Key-Sharing Infrastructures.
ISW
Tsuyoshi Nishioka, Goichiro Hanaoka, Hideki Imai
1999 A conf
An Efficient Hierarchical Identity-Based Key-Sharing Method Resistant against Collusion-Attacks.
ASIACRYPT
Goichiro Hanaoka, Tsuyoshi Nishioka, Yuliang Zheng, Hideki Imai
1999 C conf
Optimal Construction of Unconditionally Secure ID-Based Key Sharing Scheme for Large-Scale Networks.
ICICS
Goichiro Hanaoka, Tsuyoshi Nishioka, Yuliang Zheng, Hideki Imai
1998 Misc conf
LITESET: A Light-Weight Secure Electronic Transaction Protocol.
ACISP
Goichiro Hanaoka, Yuliang Zheng, Hideki Imai