Yusuke Sakai

Publication Activity (10 Years)

Years Active: 2010-2024
Publications (10 Years): 49

Top Topics

Group Signature

Public Key Encryption

Encryption Scheme

Top Venues

IEICE Trans. Fundam. Electron. Commun. Comput. Sci.

IACR Cryptol. ePrint Arch.

Publications

Kaoru Takemure, Yusuke Sakai, Bagus Santoso, Goichiro Hanaoka, Kazuo Ohta
More Efficient Two-Round Multi-Signature Scheme with Provably Secure Parameters for Standardized Elliptic Curves. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 107 (7) (2024)
Ryuya Hayashi, Yusuke Sakai, Shota Yamada
Attribute-Based Signatures for Circuits with Optimal Parameter Size from Standard Assumptions. IACR Cryptol. ePrint Arch. 2024 (2024)
Nuttapong Attrapadung, Goichiro Hanaoka, Ryo Hiromasa, Yoshihiro Koseki, Takahiro Matsuda, Yutaro Nishida, Yusuke Sakai, Jacob C. N. Schuldt, Satoshi Yasuda
Privacy-Preserving Verifiable CNNs. ACNS (2) (2024)
Ryu Ishii, Kyosuke Yamashita, Zihao Song, Yusuke Sakai, Tadanori Teruya, Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto
Constraints and Evaluations on Signature Transmission Interval for Aggregate Signatures with Interactive Tracing Functionality. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 107 (4) (2024)
Shuichi Katsumata, Michael Reichle, Yusuke Sakai
Practical Round-Optimal Blind Signatures in the ROM from Standard Assumptions. ASIACRYPT (2) (2023)
Shuichi Katsumata, Michael Reichle, Yusuke Sakai
Practical Round-Optimal Blind Signatures in the ROM from Standard Assumptions. IACR Cryptol. ePrint Arch. 2023 (2023)
Kyosuke Yamashita, Ryu Ishii, Yusuke Sakai, Tadanori Teruya, Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto
Fault-Tolerant Aggregate Signature Schemes against Bandwidth Consumption Attack. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 106 (9) (2023)
Kaoru Takemure, Yusuke Sakai, Bagus Santoso, Goichiro Hanaoka, Kazuo Ohta
More Efficient Two-Round Multi-Signature Scheme with Provably Secure Parameters. IACR Cryptol. ePrint Arch. 2023 (2023)
Yusuke Sakai
Succinct Attribute-Based Signatures for Bounded-Size Circuits by Combining Algebraic and Arithmetic Proofs. SCN (2022)
Ryu Ishii, Kyosuke Yamashita, Zihao Song, Yusuke Sakai, Tadanori Teruya, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto
Constraints and Evaluations on Signature Transmission Interval for Aggregate Signatures with Interactive Tracing Functionality. ADIoT (2022)
Ryu Ishii, Kyosuke Yamashita, Yusuke Sakai, Tadanori Teruya, Takahiro Matsuda, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto
Aggregate Signature Schemes with Traceability of Devices Dynamically Generating Invalid Signatures. IEICE Trans. Inf. Syst. (11) (2022)
Ai Kitagawa, Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka
Fully Anonymous Group Signature with Verifier-Local Revocation. IACR Cryptol. ePrint Arch. 2021 (2021)
Junichiro Hayata, Fuyuki Kitagawa, Yusuke Sakai, Goichiro Hanaoka, Kanta Matsuura
Equivalence between Non-Malleability against Replayable CCA and Other RCCA-Security Notions. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2021)
Ryu Ishii, Kyosuke Yamashita, Yusuke Sakai, Takahiro Matsuda, Tadanori Teruya, Goichiro Hanaoka, Kanta Matsuura, Tsutomu Matsumoto
Aggregate Signature with Traceability of Devices Dynamically Generating Invalid Signatures. ACNS Workshops (2021)
Kaoru Takemure, Yusuke Sakai, Bagus Santoso, Goichiro Hanaoka, Kazuo Ohta
Achieving Pairing-Free Aggregate Signatures using Pre-Communication between Signers. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (9) (2021)
Kaoru Takemure, Yusuke Sakai, Bagus Santoso, Goichiro Hanaoka, Kazuo Ohta
Achieving Pairing-Free Aggregate Signatures using Pre-Communication between Signers. ProvSec (2020)
Goichiro Hanaoka, Yusuke Sakai, Toshiya Shimizu, Takeshi Shimoyama, SeongHan Shin
A Setup-Free Threshold Encryption Scheme for the Bitcoin Protocol and Its Applications. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2020)
Satoshi Yasuda, Yoshihiro Koseki, Yusuke Sakai, Fuyuki Kitagawa, Yutaka Kawai, Goichiro Hanaoka
Verifiable Privacy-Preserving Data Aggregation Protocols. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2020)
Yusuke Sakai, Goichiro Hanaoka
Practical Public-Key Encryption Scheme Tightly Secure in the Random Oracle Model. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2020)
Junichiro Hayata, Masahito Ishizaka, Yusuke Sakai, Goichiro Hanaoka, Kanta Matsuura
Generic Construction of Adaptively Secure Anonymous Key-Policy Attribute-Based Encryption from Public-Key Searchable Encryption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2020)
Goichiro Hanaoka, Misaki Komatsu, Kazuma Ohara, Yusuke Sakai, Shota Yamada
Semantic Definition of Anonymity in Identity-Based Encryption and Its Relation to Indistinguishability-Based Definition. ESORICS (2) (2020)
Goichiro Hanaoka, Kazuo Ohta, Yusuke Sakai, Bagus Santoso, Kaoru Takemure, Yunlei Zhao
Cryptanalysis of Aggregate Γ-Signature and Practical Countermeasures in Application to Bitcoin. IACR Cryptol. ePrint Arch. 2020 (2020)
Ai Ishida, Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka
Proper Usage of the Group Signature Scheme in ISO/IEC 20008-2. IACR Cryptol. ePrint Arch. 2019 (2019)
Kazuma Ohara, Keita Emura, Goichiro Hanaoka, Ai Ishida, Kazuo Ohta, Yusuke Sakai
Shortening the Libert-Peters-Yung Revocable Group Signature Scheme by Using the Random Oracle Methodology. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (9) (2019)
Yusuke Sakai
Recent Advances in Attribute-Based Signatures. APKC@AsiaCCS (2019)
Ai Ishida, Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka
Proper Usage of the Group Signature Scheme in ISO/IEC 20008-2. AsiaCCS (2019)
Ryo Kikuchi, Nuttapong Attrapadung, Koki Hamada, Dai Ikarashi, Ai Ishida, Takahiro Matsuda, Yusuke Sakai, Jacob C. N. Schuldt
Field Extension in Secret-Shared Form and Its Applications to Efficient Secure Computation. IACR Cryptol. ePrint Arch. 2019 (2019)
Ryo Kikuchi, Nuttapong Attrapadung, Koki Hamada, Dai Ikarashi, Ai Ishida, Takahiro Matsuda, Yusuke Sakai, Jacob C. N. Schuldt
Field Extension in Secret-Shared Form and Its Applications to Efficient Secure Computation. ACISP (2019)
Junichiro Hayata, Fuyuki Kitagawa, Yusuke Sakai, Goichiro Hanaoka, Kanta Matsuura
Equivalence Between Non-malleability Against Replayable CCA and Other RCCA-Security Notions. IWSEC (2019)
Keita Emura, Goichiro Hanaoka, Yutaka Kawai, Takahiro Matsuda, Kazuma Ohara, Kazumasa Omote, Yusuke Sakai
Group Signatures with Message-Dependent Opening: Formal Definitions and Constructions. Secur. Commun. Networks 2019 (2019)
Satoshi Yasuda, Yoshihiro Koseki, Yusuke Sakai, Fuyuki Kitagawa, Yutaka Kawai, Goichiro Hanaoka
Formal Treatment of Verifiable Privacy-Preserving Data-Aggregation Protocols. ProvSec (2018)
Ai Ishida, Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Keisuke Tanaka
Fully Anonymous Group Signature with Verifier-Local Revocation. SCN (2018)
Yusuke Sakai, Takahiro Matsuda, Goichiro Hanaoka
Tag-KEM/DEM Framework for Public-Key Encryption with Non-Interactive Opening. IEICE Trans. Inf. Syst. (11) (2018)
Nuttapong Attrapadung, Goichiro Hanaoka, Shigeo Mitsunari, Yusuke Sakai, Kana Shimizu, Tadanori Teruya
Efficient Two-level Homomorphic Encryption in Prime-order Bilinear Groups and A Fast Implementation in WebAssembly. AsiaCCS (2018)
Junichiro Hayata, Masahito Ishizaka, Yusuke Sakai, Goichiro Hanaoka, Kanta Matsuura
Generic Construction of Adaptively Secure Anonymous Key-Policy Attribute-Based Encryption from Public-Key Searchable Encryption. ISITA (2018)
Yusuke Sakai, Shuichi Katsumata, Nuttapong Attrapadung, Goichiro Hanaoka
Attribute-Based Signatures for Unbounded Languages from Standard Assumptions. IACR Cryptol. ePrint Arch. 2018 (2018)
Yusuke Sakai, Shuichi Katsumata, Nuttapong Attrapadung, Goichiro Hanaoka
Attribute-Based Signatures for Unbounded Languages from Standard Assumptions. ASIACRYPT (2) (2018)
Yusuke Sakai, Nuttapong Attrapadung, Goichiro Hanaoka
Practical attribute-based signature schemes for circuits from bilinear map. IET Inf. Secur. 12 (3) (2018)
Yusuke Sakai, Goichiro Hanaoka
A Remark on an Identity-Based Encryption Scheme with Non-interactive Opening. ISITA (2018)
Ai Ishida, Yusuke Sakai, Goichiro Hanaoka
A Consideration on the Transformation from Deniable Group Signature to Disavowable PKENO. ISITA (2018)
Sanami Nakagawa, Takashi Nishide, Eiji Okamoto, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Akihisa Kodate
A privacy-enhanced access log management mechanism in SSO systems from nominative signatures. Int. J. Appl. Cryptogr. 3 (4) (2017)
Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka
Group Signature with Deniability: How to Disavow a Signature. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (9) (2017)
Yusuke Sakai, Takahiro Matsuda, Goichiro Hanaoka
Tag-KEM/DEM framework for public-key encryption with non-interactive opening. ISITA (2016)
Yusuke Sakai, Nuttapong Attrapadung, Goichiro Hanaoka
Attribute-Based Signatures for Circuits from Bilinear Map. IACR Cryptol. ePrint Arch. 2016 (2016)
Yusuke Sakai, Keita Emura, Jacob C. N. Schuldt, Goichiro Hanaoka, Kazuo Ohta
Constructions of dynamic and non-dynamic threshold public-key encryption schemes with decryption consistency. Theor. Comput. Sci. 630 (2016)
Yusuke Sakai, Nuttapong Attrapadung, Goichiro Hanaoka
Attribute-Based Signatures for Circuits from Bilinear Map. Public Key Cryptography (1) (2016)
Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka
Group Signature with Deniability: How to Disavow a Signature. CANS (2016)
Takato Hirano, Mitsuhiro Hattori, Yutaka Kawai, Nori Matsuda, Mitsugu Iwamoto, Kazuo Ohta, Yusuke Sakai, Tatsuji Munaka
Simple, Secure, and Efficient Searchable Symmetric Encryption with Multiple Encrypted Indexes. IWSEC (2016)
Kazuma Ohara, Keita Emura, Goichiro Hanaoka, Ai Ishida, Kazuo Ohta, Yusuke Sakai
Shortening the Libert-Peters-Yung Revocable Group Signature Scheme by Using the Random Oracle Methodology. IACR Cryptol. ePrint Arch. 2016 (2016)
Yusuke Sakai, Keita Emura, Jacob C. N. Schuldt, Goichiro Hanaoka, Kazuo Ohta
Dynamic Threshold Public-Key Encryption with Decryption Consistency from Static Assumptions. ACISP (2015)
Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka
Disavowable Public Key Encryption with Non-interactive Opening. AsiaCCS (2015)
Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka
Group Signature with Deniability: How to Disavow a Signature. IACR Cryptol. ePrint Arch. 2015 (2015)
Nuttapong Attrapadung, Keita Emura, Goichiro Hanaoka, Yusuke Sakai
Revocable Group Signature with Constant-Size Revocation List. Comput. J. 58 (10) (2015)
Ai Ishida, Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Keisuke Tanaka
Disavowable Public Key Encryption with Non-Interactive Opening. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (12) (2015)
Nuttapong Attrapadung, Keita Emura, Goichiro Hanaoka, Yusuke Sakai
A Revocable Group Signature Scheme from Identity-Based Revocation Techniques: Achieving Constant-Size Revocation List. ACNS (2014)
Keita Emura, Goichiro Hanaoka, Yusuke Sakai, Jacob C. N. Schuldt
Group signature implies public-key encryption with non-interactive opening. Int. J. Inf. Sec. 13 (1) (2014)
Sanami Nakagawa, Keita Emura, Goichiro Hanaoka, Akihisa Kodate, Takashi Nishide, Eiji Okamoto, Yusuke Sakai
A Privacy-Enhanced Access Log Management Mechanism in SSO Systems from Nominative Signatures. TrustCom (2014)
Kazuma Ohara, Yusuke Sakai, Fumiaki Yoshida, Mitsugu Iwamoto, Kazuo Ohta
Privacy-preserving smart metering with verifiability for both billing and energy management. AsiaPKC@AsiaCCS (2014)
Mitsuhiro Hattori, Takato Hirano, Takashi Ito, Nori Matsuda, Takumi Mori, Yusuke Sakai, Kazuo Ohta
Ciphertext-Policy Delegatable Hidden Vector Encryption and Its Application. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2013)
Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Yutaka Kawai, Kazumasa Omote
Methods for Restricting Message Space in Public-Key Encryption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (6) (2013)
Kazuma Ohara, Yusuke Sakai, Keita Emura, Goichiro Hanaoka
A group signature scheme with unbounded message-dependent opening. AsiaCCS (2013)
Yusuke Sakai, Jacob C. N. Schuldt, Keita Emura, Goichiro Hanaoka, Kazuo Ohta
On the Security of Dynamic Group Signatures: Preventing Signature Hijacking. IACR Cryptol. ePrint Arch. 2012 (2012)
Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Yutaka Kawai, Takahiro Matsuda, Kazumasa Omote
Group Signatures with Message-Dependent Opening. Pairing (2012)
Yusuke Sakai, Jacob C. N. Schuldt, Keita Emura, Goichiro Hanaoka, Kazuo Ohta
On the Security of Dynamic Group Signatures: Preventing Signature Hijacking. Public Key Cryptography (2012)
Yutaka Kawai, Yusuke Sakai, Noboru Kunihiro
On the (Im)possibility Results for Strong Attack Models for Public Key Cryptsystems. J. Internet Serv. Inf. Secur. 1 (2/3) (2011)
Yusuke Sakai, Goichiro Hanaoka, Kaoru Kurosawa, Kazuo Ohta
How to Shorten a Ciphertext of Reproducible Key Encapsulation Mechanisms in the Random Oracle Model. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (6) (2011)
Mitsuhiro Hattori, Takato Hirano, Takashi Ito, Nori Matsuda, Takumi Mori, Yusuke Sakai, Kazuo Ohta
Ciphertext-Policy Delegatable Hidden Vector Encryption and Its Application to Searchable Encryption in Multi-user Setting. IMACC (2011)
Yusuke Sakai, Keita Emura, Goichiro Hanaoka, Yutaka Kawai, Kazumasa Omote
Towards Restricting Plaintext Space in Public Key Encryption. IWSEC (2011)
Keita Emura, Goichiro Hanaoka, Yusuke Sakai
Group Signature Implies PKE with Non-interactive Opening and Threshold PKE. IWSEC (2010)
Yusuke Sakai, Goichiro Hanaoka, Kaoru Kurosawa, Kazuo Ohta
A Generic Method for Reducing Ciphertext Length of Reproducible KEMs in the RO Model. IWSEC (2010)