Miyako Ohkubo

72 papers A* 3A 8B 2C 2Misc 1Journal 34Unranked 22
YearRankTypeTitle / Venue / Authors
2025 — conf
A Certified-Input Mixnet from Two-Party Mercurial Signatures on Randomizable Ciphertexts.
ESORICS (2)
Masayuki Abe, Masaya Nanri, Miyako Ohkubo, Octavio Perez-Kempner, Daniel Slamanig, Mehdi Tibouchi
2025 J jnl
Hybrid zero-knowledge from garbled circuits.
Cryptogr. Commun.
Masayuki Abe, Miguel Ambrona, Miyako Ohkubo
2024 — conf
CDS Composition of Multi-round Protocols.
CRYPTO (9)
Masayuki Abe, Andrej Bogdanov, Miyako Ohkubo, Alon Rosen, Zehua Shang, Mehdi Tibouchi
2024 J jnl
Critical Round in Multi-Round Proofs: Compositions and Transformation to Trapdoor Commitments.
IACR Cryptol. ePrint Arch.
Masayuki Abe, David Balbás, Dung Bui, Miyako Ohkubo, Zehua Shang, Mehdi Tibouchi
2024 — conf
Hybrid Zero-Knowledge from Garbled Circuits and Circuit-Based Composition of Σ-Protocols.
SCN (1)
Masayuki Abe, Miguel Ambrona, Miyako Ohkubo
2024 J jnl
Hybrid Zero-Knowledge from Garbled Circuits.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Miguel Ambrona, Miyako Ohkubo
2024 J jnl
Scalable Mixnets from Mercurial Signatures on Randomizable Ciphertexts.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Masaya Nanri, Miyako Ohkubo, Octavio Perez-Kempner, Daniel Slamanig, Mehdi Tibouchi
2023 J jnl
Compact Structure-Preserving Signatures with Almost Tight Security.
J. Cryptol.
Masayuki Abe, Dennis Hofheinz, Ryo Nishimaki, Miyako Ohkubo, Jiaxin Pan
2021 — conf
Acyclicity Programming for Sigma-Protocols.
TCC (1)
Masayuki Abe, Miguel Ambrona, Andrej Bogdanov, Miyako Ohkubo, Alon Rosen
2021 J jnl
Acyclicity Programming for Sigma-Protocols.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Miguel Ambrona, Andrej Bogdanov, Miyako Ohkubo, Alon Rosen
2021 J jnl
Non-Interactive Composition of Sigma-Protocols via Share-then-Hash.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Miguel Ambrona, Andrej Bogdanov, Miyako Ohkubo, Alon Rosen
2020 — conf
Non-interactive Composition of Sigma-Protocols via Share-then-Hash.
ASIACRYPT (3)
Masayuki Abe, Miguel Ambrona, Andrej Bogdanov, Miyako Ohkubo, Alon Rosen
2020 — conf
On Black-Box Extensions of Non-interactive Zero-Knowledge Arguments, and Signatures Directly from Simulation Soundness.
Public Key Cryptography (1)
Masayuki Abe, Miguel Ambrona, Miyako Ohkubo
2019 J jnl
Black-Box Language Extension of Non-Interactive Zero-Knowledge Arguments.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Miguel Ambrona, Miyako Ohkubo
2019 J jnl
Efficient Fully Structure-Preserving Signatures and Shrinking Commitments.
J. Cryptol.
Masayuki Abe, Jens Groth, Markulf Kohlweiss, Miyako Ohkubo, Mehdi Tibouchi
2019 J jnl
Fast and Scalable Bilinear-Type Conversion Method for Large Scale Crypto Schemes.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masayuki Abe, Fumitaka Hoshino, Miyako Ohkubo
2019 J jnl
Opcount: A Pseudo-Code Performance Estimation System for Pairing-Based Cryptography.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masayuki Abe, Fumitaka Hoshino, Miyako Ohkubo
2019 — conf
Shorter QA-NIZK and SPS with Tighter Security.
ASIACRYPT (3)
Masayuki Abe, Charanjit S. Jutla, Miyako Ohkubo, Jiaxin Pan, Arnab Roy, Yuyu Wang
2019 J jnl
Shorter QA-NIZK and SPS with Tighter Security.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Charanjit S. Jutla, Miyako Ohkubo, Jiaxin Pan, Arnab Roy, Yuyu Wang
2018 — conf
Improved (Almost) Tightly-Secure Simulation-Sound QA-NIZK with Applications.
ASIACRYPT (1)
Masayuki Abe, Charanjit S. Jutla, Miyako Ohkubo, Arnab Roy
2018 J jnl
Improved (Almost) Tightly-Secure Simulation-Sound QA-NIZK with Applications.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Charanjit S. Jutla, Miyako Ohkubo, Arnab Roy
2018 — conf
Improved (Almost) Tightly-Secure Structure-Preserving Signatures.
Public Key Cryptography (2)
Charanjit S. Jutla, Miyako Ohkubo, Arnab Roy
2018 J jnl
Improved (Almost) Tightly-Secure Structure-Preserving Signatures.
IACR Cryptol. ePrint Arch.
Charanjit S. Jutla, Miyako Ohkubo, Arnab Roy
2018 Misc conf
Lower Bounds on Structure-Preserving Signatures for Bilateral Messages.
SCN
Masayuki Abe, Miguel Ambrona, Miyako Ohkubo, Mehdi Tibouchi
2018 J jnl
Lower Bounds on Structure-Preserving Signatures for Bilateral Messages.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Miguel Ambrona, Miyako Ohkubo, Mehdi Tibouchi
2017 — conf
Compact Structure-Preserving Signatures with Almost Tight Security.
CRYPTO (2)
Masayuki Abe, Dennis Hofheinz, Ryo Nishimaki, Miyako Ohkubo, Jiaxin Pan
2017 J jnl
Compact Structure-preserving Signatures with Almost Tight Security.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Dennis Hofheinz, Ryo Nishimaki, Miyako Ohkubo, Jiaxin Pan
2016 J jnl
Constant-Size Structure-Preserving Signatures: Generic Constructions and Simple Assumptions.
J. Cryptol.
Masayuki Abe, Melissa Chase, Bernardo David, Markulf Kohlweiss, Ryo Nishimaki, Miyako Ohkubo
2016 — conf
Design in Type-I, Run in Type-III: Fast and Scalable Bilinear-Type Conversion Using Integer Programming.
CRYPTO (3)
Masayuki Abe, Fumitaka Hoshino, Miyako Ohkubo
2016 J jnl
Design in Type-I, Run in Type-III: Fast and Scalable Bilinear-Type Conversion using Integer Programming.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Fumitaka Hoshino, Miyako Ohkubo
2016 J jnl
Structure-Preserving Signatures and Commitments to Group Elements.
J. Cryptol.
Masayuki Abe, Georg Fuchsbauer, Jens Groth, Kristiyan Haralambiev, Miyako Ohkubo
2015 — conf
Fully Structure-Preserving Signatures and Shrinking Commitments.
EUROCRYPT (2)
Masayuki Abe, Markulf Kohlweiss, Miyako Ohkubo, Mehdi Tibouchi
2015 J jnl
Fully Structure-Preserving Signatures and Shrinking Commitments.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Markulf Kohlweiss, Miyako Ohkubo, Mehdi Tibouchi
2015 J jnl
Tagged One-Time Signatures: Tight Security and Optimal Tag Size.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Bernardo David, Markulf Kohlweiss, Ryo Nishimaki, Miyako Ohkubo
2015 A conf
The Limits of Composable Crypto with Transferable Setup Devices.
AsiaCCS
Ioana Boureanu, Miyako Ohkubo, Serge Vaudenay
2014 — conf
Converting Cryptographic Schemes from Symmetric to Asymmetric Bilinear Groups.
CRYPTO (1)
Masayuki Abe, Jens Groth, Miyako Ohkubo, Takeya Tango
2014 — conf
Introduction of structure-preserving signatures.
AsiaPKC@AsiaCCS
Miyako Ohkubo
2014 J jnl
Relations among Notions of Privacy for RFID Authentication Protocols.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Daisuke Moriyama, Shin'ichiro Matsuo, Miyako Ohkubo
2014 — conf
Structure-Preserving Signatures from Type II Pairings.
CRYPTO (1)
Masayuki Abe, Jens Groth, Miyako Ohkubo, Mehdi Tibouchi
2014 J jnl
Structure-Preserving Signatures from Type II Pairings.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Jens Groth, Miyako Ohkubo, Mehdi Tibouchi
2014 B conf
Unified, Minimal and Selectively Randomizable Structure-Preserving Signatures.
TCC
Masayuki Abe, Jens Groth, Miyako Ohkubo, Mehdi Tibouchi
2014 J jnl
Unified, Minimal and Selectively Randomizable Structure-Preserving Signatures.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Jens Groth, Miyako Ohkubo, Mehdi Tibouchi
2013 C conf
A Forward Privacy Model for RFID Authentication Protocols.
WISTP
Daisuke Moriyama, Miyako Ohkubo, Shin'ichiro Matsuo
2013 J jnl
Double-trapdoor anonymous tags for traceable signatures.
Int. J. Inf. Sec.
Masayuki Abe, Sherman S. M. Chow, Kristiyan Haralambiev, Miyako Ohkubo
2013 — conf
Tagged One-Time Signatures: Tight Security and Optimal Tag Size.
Public Key Cryptography
Masayuki Abe, Bernardo David, Markulf Kohlweiss, Ryo Nishimaki, Miyako Ohkubo
2012 J jnl
A framework for universally composable non-committing blind signatures.
Int. J. Appl. Cryptogr.
Masayuki Abe, Miyako Ohkubo
2012 A conf
Constant-Size Structure-Preserving Signatures: Generic Constructions and Simple Assumptions.
ASIACRYPT
Masayuki Abe, Melissa Chase, Bernardo David, Markulf Kohlweiss, Ryo Nishimaki, Miyako Ohkubo
2012 J jnl
Constant-Size Structure-Preserving Signatures: Generic Constructions and Simple Assumptions.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Melissa Chase, Bernardo David, Markulf Kohlweiss, Ryo Nishimaki, Miyako Ohkubo
2012 A* conf
Group to Group Commitments Do Not Shrink.
EUROCRYPT
Masayuki Abe, Kristiyan Haralambiev, Miyako Ohkubo
2012 A conf
Relations among Notions of Privacy for RFID Authentication Protocols.
ESORICS
Daisuke Moriyama, Shin'ichiro Matsuo, Miyako Ohkubo
2011 — conf
A Signature Scheme with Efficient Proof of Validity.
IWCC
Masayuki Abe, Miyako Ohkubo
2011 — conf
A Study on Computational Formal Verification for Practical Cryptographic Protocol: The Case of Synchronous RFID Authentication.
Financial Cryptography Workshops
Yoshikazu Hanatani, Miyako Ohkubo, Shin'ichiro Matsuo, Kazuo Sakiyama, Kazuo Ohta
2011 J jnl
Anonymous Hierarchical Identity-Based Encryption with Short Ciphertexts.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Jae Hong Seo, Tetsutaro Kobayashi, Miyako Ohkubo, Koutarou Suzuki
2011 B conf
Double-Trapdoor Anonymous Tags for Traceable Signatures.
ACNS
Masayuki Abe, Sherman S. M. Chow, Kristiyan Haralambiev, Miyako Ohkubo
2011 A* conf
Optimal Structure-Preserving Signatures in Asymmetric Bilinear Groups.
CRYPTO
Masayuki Abe, Jens Groth, Kristiyan Haralambiev, Miyako Ohkubo
2011 A conf
Separating Short Structure-Preserving Signatures from Non-interactive Assumptions.
ASIACRYPT
Masayuki Abe, Jens Groth, Miyako Ohkubo
2010 C conf
Efficient Message Space Extension for Automorphic Signatures.
ISC
Masayuki Abe, Kristiyan Haralambiev, Miyako Ohkubo
2010 — conf
Leakage-Resilient RFID Authentication with Forward-Privacy.
RFIDSec
Shin'ichiro Matsuo, Le Trieu Phong, Miyako Ohkubo, Moti Yung
2010 J jnl
Robust RFID Authentication Protocol with Formal Proof and Its Feasibility.
IACR Cryptol. ePrint Arch.
Miyako Ohkubo, Shin'ichiro Matsuo, Yoshikazu Hanatani, Kazuo Sakiyama, Kazuo Ohta
2010 J jnl
Signing on Elements in Bilinear Groups for Modular Protocol Design.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Kristiyan Haralambiev, Miyako Ohkubo
2010 A* conf
Structure-Preserving Signatures and Commitments to Group Elements.
CRYPTO
Masayuki Abe, Georg Fuchsbauer, Jens Groth, Kristiyan Haralambiev, Miyako Ohkubo
2009 J jnl
A Framework for Universally Composable Non-Committing Blind Signatures.
IACR Cryptol. ePrint Arch.
Masayuki Abe, Miyako Ohkubo
2009 A conf
A Framework for Universally Composable Non-committing Blind Signatures.
ASIACRYPT
Masayuki Abe, Miyako Ohkubo
2009 — conf
Anonymous Hierarchical Identity-Based Encryption with Constant Size Ciphertexts.
Public Key Cryptography
Jae Hong Seo, Tetsutaro Kobayashi, Miyako Ohkubo, Koutarou Suzuki
2008 J jnl
On the Definitions of Anonymity for Ring Signatures.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Miyako Ohkubo, Masayuki Abe
2006 — conf
On the Definition of Anonymity for Ring Signatures.
VIETCRYPT
Miyako Ohkubo, Masayuki Abe
2005 J jnl
RFID privacy issues and technical challenges.
Commun. ACM
Miyako Ohkubo, Koutarou Suzuki, Shingo Kinoshita
2004 J jnl
1-out-of-n Signatures from a Variety of Keys.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masayuki Abe, Miyako Ohkubo, Koutarou Suzuki
2002 A conf
1-out-of-n Signatures from a Variety of Keys.
ASIACRYPT
Masayuki Abe, Miyako Ohkubo, Koutarou Suzuki
2001 A conf
Provably Secure Fair Blind Signatures with Tight Revocation.
ASIACRYPT
Masayuki Abe, Miyako Ohkubo
2000 A conf
A Length-Invariant Hybrid Mix.
ASIACRYPT
Miyako Ohkubo, Masayuki Abe
1999 — conf
An Improvement on a Practical Secret Voting Scheme.
ISW
Miyako Ohkubo, Fumiaki Miura, Masayuki Abe, Atsushi Fujioka, Tatsuaki Okamoto