Yusuke Sakai

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28 publications in security and cryptology related venues
Year
Venue
Title
2025
conf/asiapkc
On Key Substitution Attacks against Aggregate Signatures and Multi-Signatures.
Yuuki Fujita Yusuke Sakai Kyosuke Yamashita Goichiro Hanaoka
2025
conf/esorics
Abuse-Resistant Evaluation of AI-as-a-Service via Function-Hiding Homomorphic Signatures.
Nuttapong Attrapadung Goichiro Hanaoaka Ryo Hiromasa Yoshihiro Koseki Takahiro Matsuda Yutaro Nishida Yusuke Sakai Jacob C. N. Schuldt Satoshi Yasuda
2024
conf/fc
Anonymous Reputation Systems with Revocation, Revisited.
Ryuya Hayashi Shuichi Katsumata Yusuke Sakai
2024
conf/acns
Privacy-Preserving Verifiable CNNs.
Nuttapong Attrapadung Goichiro Hanaoka Ryo Hiromasa Yoshihiro Koseki Takahiro Matsuda Yutaro Nishida Yusuke Sakai Jacob C. N. Schuldt Satoshi Yasuda
2023
conf/fc
Signature for Objects: Formalizing How to Authenticate Physical Data and More.
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
conf/asiacrypt
Practical Round-Optimal Blind Signatures in the ROM from Standard Assumptions.
Shuichi Katsumata Michael Reichle Yusuke Sakai
2021
conf/acns
Aggregate Signature with Traceability of Devices Dynamically Generating Invalid Signatures.
Ryu Ishii Kyosuke Yamashita Yusuke Sakai Takahiro Matsuda Tadanori Teruya Goichiro Hanaoka Kanta Matsuura Tsutomu Matsumoto
2020
conf/provsec
Achieving Pairing-Free Aggregate Signatures using Pre-Communication between Signers.
Kaoru Takemure Yusuke Sakai Bagus Santoso Goichiro Hanaoka Kazuo Ohta
2020
conf/esorics
Semantic Definition of Anonymity in Identity-Based Encryption and Its Relation to Indistinguishability-Based Definition.
Goichiro Hanaoka Misaki Komatsu Kazuma Ohara Yusuke Sakai Shota Yamada
2019
conf/ccs
Proper Usage of the Group Signature Scheme in ISO/IEC 20008-2.
Ai Ishida Yusuke Sakai Keita Emura Goichiro Hanaoka Keisuke Tanaka
2019
conf/ccs
Recent Advances in Attribute-Based Signatures.
Yusuke Sakai
2019
conf/acisp
Field Extension in Secret-Shared Form and Its Applications to Efficient Secure Computation.
Ryo Kikuchi Nuttapong Attrapadung Koki Hamada Dai Ikarashi Ai Ishida Takahiro Matsuda Yusuke Sakai Jacob C. N. Schuldt
2019
conf/iwsec
Equivalence Between Non-malleability Against Replayable CCA and Other RCCA-Security Notions.
Junichiro Hayata Fuyuki Kitagawa Yusuke Sakai Goichiro Hanaoka Kanta Matsuura
2018
conf/ccs
Efficient Two-level Homomorphic Encryption in Prime-order Bilinear Groups and A Fast Implementation in WebAssembly.
Nuttapong Attrapadung Goichiro Hanaoka Shigeo Mitsunari Yusuke Sakai Kana Shimizu Tadanori Teruya
2018
conf/provsec
Formal Treatment of Verifiable Privacy-Preserving Data-Aggregation Protocols.
Satoshi Yasuda Yoshihiro Koseki Yusuke Sakai Fuyuki Kitagawa Yutaka Kawai Goichiro Hanaoka
2018
conf/asiacrypt
Attribute-Based Signatures for Unbounded Languages from Standard Assumptions.
Yusuke Sakai Shuichi Katsumata Nuttapong Attrapadung Goichiro Hanaoka
2016
conf/pkc
Attribute-Based Signatures for Circuits from Bilinear Map.
Yusuke Sakai Nuttapong Attrapadung Goichiro Hanaoka
2016
conf/iwsec
Simple, Secure, and Efficient Searchable Symmetric Encryption with Multiple Encrypted Indexes.
Takato Hirano Mitsuhiro Hattori Yutaka Kawai Nori Matsuda Mitsugu Iwamoto Kazuo Ohta Yusuke Sakai Tatsuji Munaka
2016
conf/cans
Group Signature with Deniability: How to Disavow a Signature.
Ai Ishida Keita Emura Goichiro Hanaoka Yusuke Sakai Keisuke Tanaka
2015
conf/ccs
Disavowable Public Key Encryption with Non-interactive Opening.
Ai Ishida Keita Emura Goichiro Hanaoka Yusuke Sakai Keisuke Tanaka
2015
conf/acisp
Dynamic Threshold Public-Key Encryption with Decryption Consistency from Static Assumptions.
Yusuke Sakai Keita Emura Jacob C. N. Schuldt Goichiro Hanaoka Kazuo Ohta
2014
conf/ccs
Privacy-preserving smart metering with verifiability for both billing and energy management.
Kazuma Ohara Yusuke Sakai Fumiaki Yoshida Mitsugu Iwamoto Kazuo Ohta
2014
conf/acns
A Revocable Group Signature Scheme from Identity-Based Revocation Techniques: Achieving Constant-Size Revocation List.
Nuttapong Attrapadung Keita Emura Goichiro Hanaoka Yusuke Sakai
2013
conf/ccs
A group signature scheme with unbounded message-dependent opening.
Kazuma Ohara Yusuke Sakai Keita Emura Goichiro Hanaoka
2012
conf/pkc
On the Security of Dynamic Group Signatures: Preventing Signature Hijacking.
Yusuke Sakai Jacob C. N. Schuldt Keita Emura Goichiro Hanaoka Kazuo Ohta
2011
conf/iwsec
Towards Restricting Plaintext Space in Public Key Encryption.
Yusuke Sakai Keita Emura Goichiro Hanaoka Yutaka Kawai Kazumasa Omote
2010
conf/iwsec
Group Signature Implies PKE with Non-interactive Opening and Threshold PKE.
Keita Emura Goichiro Hanaoka Yusuke Sakai
2010
conf/iwsec
A Generic Method for Reducing Ciphertext Length of Reproducible KEMs in the RO Model.
Yusuke Sakai Goichiro Hanaoka Kaoru Kurosawa Kazuo Ohta

Coauthors

Ai Ishida (4)
Bagus Santoso (1)
Dai Ikarashi (1)
Fumiaki Yoshida (1)
Fuyuki Kitagawa (2)
Goichiro Hanaoaka (1)
Goichiro Hanaoka (21)
Jacob C. N. Schuldt (6)
Junichiro Hayata (2)
Kana Shimizu (1)
Kanta Matsuura (3)
Kaoru Kurosawa (1)
Kaoru Takemure (1)
Kazuma Ohara (3)
Kazumasa Omote (1)
Kazuo Ohta (6)
Keisuke Tanaka (3)
Keita Emura (9)
Koki Hamada (1)
Kyosuke Yamashita (2)
Michael Reichle (1)
Misaki Komatsu (1)
Mitsugu Iwamoto (2)
Mitsuhiro Hattori (1)
Nori Matsuda (1)
Nuttapong Attrapadung (8)
Ryo Hiromasa (2)
Ryo Kikuchi (1)
Ryu Ishii (1)
Ryuya Hayashi (2)
Satoshi Yasuda (3)
Shigeo Mitsunari (1)
Shota Yamada (2)
Shuichi Katsumata (4)
Tadanori Teruya (3)
Taiki Asano (1)
Takahiro Matsuda (5)
Takato Hirano (1)
Tatsuji Munaka (1)
Tsutomu Matsumoto (2)
Yoshihiro Koseki (3)
Yusuke Sakai (28)
Yutaka Kawai (3)
Yutaro Nishida (2)
Yuuki Fujita (1)
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