Shingo Hasegawa

60 papers B 4C 11Misc 5Journal 22Unranked 17
YearRankTypeTitle / Venue / Authors
2026 J jnl
Lyubashevsky's Signature Has Multi-User Security under Adaptive Corruptions and Key Leakages.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masayuki Fukumitsu, Shingo Hasegawa
2025 J jnl
Efficient Group Signatures with Designated Traceability over Openers' Attributes from Lattices.
Int. J. Netw. Comput.
Hiroaki Anada, Masayuki Fukumitsu, Shingo Hasegawa
2025 J jnl
Tightly Secure Aggregate Signature with Pre-Communication.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masayuki Fukumitsu, Shingo Hasegawa
2024 — conf
Group Signatures with Designated Traceability over Openers' Attributes from Lattices.
CANDAR
Hiroaki Anada, Masayuki Fukumitsu, Shingo Hasegawa
2024 C conf
Group Signatures with Designated Traceability over Openers' Attributes from Symmetric-Key Primitives.
PST
Hiroaki Anada, Masayuki Fukumitsu, Shingo Hasegawa
2024 — conf
On Multi-User Security of Lattice-Based Signature Under Adaptive Corruptions and Key Leakages.
ProvSec (2)
Masayuki Fukumitsu, Shingo Hasegawa
2024 J jnl
On Multi-user Security of Lattice-based Signature under Adaptive Corruptions and Key Leakages.
IACR Cryptol. ePrint Arch.
Masayuki Fukumitsu, Shingo Hasegawa
2024 Misc conf
Tightly Secure Lattice-Based Synchronized Aggregate Signature in Standard Model.
ICISC
Hiroaki Anada, Masayuki Fukumitsu, Shingo Hasegawa
2023 — conf
Accountable Ring Signatures from Symmetric-Key Primitives.
candar
Hiroaki Anada, Masayuki Fukumitsu, Shingo Hasegawa
2023 J jnl
Dynamic Group Signatures with Message Dependent Opening and Non-Interactive Signing.
Int. J. Netw. Comput.
Hiroaki Anada, Masayuki Fukumitsu, Shingo Hasegawa
2023 J jnl
On Multi-user Security of Schnorr Signature in Algebraic Group Model.
Int. J. Netw. Comput.
Masayuki Fukumitsu, Shingo Hasegawa
2023 — ed.
Proceedings of the 10th ACM Asia Public-Key Cryptography Workshop, APKC 2023, Melbourne, VIC, Australia, July 10-14, 2023
APKC@AsiaCCS
Masayuki Fukumitsu, Shingo Hasegawa
2022 — conf
Dynamic Group Signatures with Message Dependent Opening and Non-Interactive Signing.
CANDAR
Hiroaki Anada, Masayuki Fukumitsu, Shingo Hasegawa
2022 Misc conf
Group Signatures with Designated Traceability over Openers' Attributes in Bilinear Groups.
WISA
Hiroaki Anada, Masayuki Fukumitsu, Shingo Hasegawa
2022 J jnl
Group Signatures with Designated Traceability over Openers' Attributes.
IACR Cryptol. ePrint Arch.
Hiroaki Anada, Masayuki Fukumitsu, Shingo Hasegawa
2022 J jnl
Group Signatures with Designated Traceability over Openers' Attributes.
Int. J. Netw. Comput.
Hiroaki Anada, Masayuki Fukumitsu, Shingo Hasegawa
2022 — conf
Group Signatures with Equality Test on Signers.
CANDARW
Kyoya Anzai, Masayuki Fukumitsu, Hiroaki Anada, Shingo Hasegawa
2022 — conf
On Multi-user Security of Schnorr Signature in Algebraic Group Model.
CANDARW
Masayuki Fukumitsu, Shingo Hasegawa
2022 J jnl
On the Higher bit Version of Approximate Inhomogeneous Short Integer Solution Problem.
IACR Cryptol. ePrint Arch.
Anaëlle Le Dévéhat, Hiroki Shizuya, Shingo Hasegawa
2022 Misc conf
Preimage Sampling in the Higher-bit Approximate Setting with a Non-spherical Gaussian Sampler.
ICISC
Anaëlle Le Dévéhat, Shingo Hasegawa, Hiroki Shizuya
2021 J jnl
A Lattice-based Provably Secure Multisignature Scheme in Quantum Random Oracle Model.
IACR Cryptol. ePrint Arch.
Masayuki Fukumitsu, Shingo Hasegawa
2021 J jnl
A Tightly Secure DDH-based Multisignature with Public-Key Aggregation.
Int. J. Netw. Comput.
Masayuki Fukumitsu, Shingo Hasegawa
2021 — conf
An Aggregate Signature with Pre-communication in the Plain Public Key Model.
STM
Masayuki Fukumitsu, Shingo Hasegawa
2021 — conf
Group Signatures with Designated Traceability.
CANDAR
Hiroaki Anada, Masayuki Fukumitsu, Shingo Hasegawa
2021 J jnl
Impossibility on the Schnorr Signature from the One-More DL Assumption in the Non-Programmable Random Oracle Model.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masayuki Fukumitsu, Shingo Hasegawa
2021 B conf
On the Higher-Bit Version of Approximate Inhomogeneous Short Integer Solution Problem.
CANS
Anaëlle Le Dévéhat, Hiroki Shizuya, Shingo Hasegawa
2021 J jnl
Public-Key Projective Arithmetic Functional Encryption.
Int. J. Netw. Comput.
Shingo Hasegawa, Masashi Hisai, Hiroki Shizuya
2021 J jnl
Tighter Reduction for Lattice-Based Multisignature.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masayuki Fukumitsu, Shingo Hasegawa
2020 C conf
A Lattice-Based Provably Secure Multisignature Scheme in Quantum Random Oracle Model.
ProvSec
Masayuki Fukumitsu, Shingo Hasegawa
2020 — conf
A Tightly Secure DDH-based Multisignature with Public-Key Aggregation.
CANDAR (Workshops)
Masayuki Fukumitsu, Shingo Hasegawa
2020 J jnl
Impossibility on the Schnorr Signature from the One-more DL Assumption in the Non-programmable Random Oracle Model.
IACR Cryptol. ePrint Arch.
Masayuki Fukumitsu, Shingo Hasegawa
2020 — conf
Linear Lossy Identification Scheme derives Tightly-Secure Multisignature.
AsiaJCIS
Masayuki Fukumitsu, Shingo Hasegawa
2020 B conf
One-More Assumptions Do Not Help Fiat-Shamir-type Signature Schemes in NPROM.
CT-RSA
Masayuki Fukumitsu, Shingo Hasegawa
2020 — conf
Public-key Projective Arithmetic Functional Encryption.
CANDAR
Shingo Hasegawa, Masashi Hisai, Hiroki Shizuya
2019 — conf
A Tightly-Secure Lattice-Based Multisignature.
APKC@AsiaCCS
Masayuki Fukumitsu, Shingo Hasegawa
2019 — conf
Motions of Propelling a Wheelchair Based on the Movement Function of People with Spinal Cord Injury.
SII
Kunihiro Ogata, Shingo Hasegawa, Tsuyoshi Nakayama, Nobuto Matsuhira, Eiichi Ono
2018 — conf
A Galindo-Garcia-Like Identity-Based Signature with Tight Security Reduction, Revisited.
CANDAR
Masayuki Fukumitsu, Shingo Hasegawa
2018 C conf
A Generic Construction of an Identity-based Signature from a Sigma Protocol.
ISITA
Masayuki Fukumitsu, Shingo Hasegawa
2018 J jnl
Black-Box Separations on Fiat-Shamir-Type Signatures in the Non-Programmable Random Oracle Model.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masayuki Fukumitsu, Shingo Hasegawa
2017 — conf
A Galindo-Garcia-Like Identity-Based Signature with Tight Security Reduction.
CANDAR
Masayuki Fukumitsu, Shingo Hasegawa
2017 — conf
A Method for Constructing an Autonomous Decentralized P2P Storage with High Confidentiality and Reliability.
CANDAR
Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Jun-ya Iwazaki, Eisuke Koizumi, Masao Sakai
2017 B conf
A Proposal of a Secure P2P-Type Storage Scheme by Using the Secret Sharing and the Blockchain.
AINA
Masayuki Fukumitsu, Shingo Hasegawa, Jun-ya Iwazaki, Masao Sakai, Daiki Takahashi
2017 C conf
Impossibility of the Provable Security of the Schnorr Signature from the One-More DL Assumption in the Non-programmable Random Oracle Model.
ProvSec
Masayuki Fukumitsu, Shingo Hasegawa
2016 B conf
A Proposal of a Password Manager Satisfying Security and Usability by Using the Secret Sharing and a Personal Server.
AINA
Masayuki Fukumitsu, Shingo Hasegawa, Jun-ya Iwazaki, Masao Sakai, Daiki Takahashi
2016 C conf
A construction of attribute-based aggregate signatures.
ISITA
Shingo Hasegawa, Shuji Isobe, Eisuke Koizumi, Hiroki Shizuya, Ryo Takahashi
2016 C conf
A generic construction of tight security signatures in the non-programmable random oracle model.
ISITA
Masayuki Fukumitsu, Shingo Hasegawa
2016 C conf
Impossibility on the Provable Security of the Fiat-Shamir-Type Signatures in the Non-programmable Random Oracle Model.
ISC
Masayuki Fukumitsu, Shingo Hasegawa
2016 — conf
Motion analysis of wheelchair considering the pectoral girdle mechanism.
SII
Shingo Hasegawa, Nobuto Matsuhira, Kunihiro Ogata, Eiichi Ono, Tsuyoshi Nakayama
2015 J jnl
A Strengthened Security Notion for Password-Protected Secret Sharing Schemes.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Shingo Hasegawa, Shuji Isobe, Jun-ya Iwazaki, Eisuke Koizumi, Hiroki Shizuya
2015 C conf
Black-Box Separations on Fiat-Shamir-Type Signatures in the Non-Programmable Random Oracle Model.
ISC
Masayuki Fukumitsu, Shingo Hasegawa
2014 J jnl
A Lossy Identification Scheme Using the Subgroup Decision Assumption.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Shingo Hasegawa, Shuji Isobe
2014 C conf
Lossy identification schemes from decisional RSA.
ISITA
Shingo Hasegawa, Shuji Isobe
2014 Misc conf
On the Impossibility of Proving Security of Strong-RSA Signatures via the RSA Assumption.
ACISP
Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Hiroki Shizuya
2014 C conf
On the security notions of signcryption.
ISITA
Shingo Hasegawa, Shuji Isobe
2014 C conf
Password-protected secret-sharing schemes without random oracles.
ISITA
Shingo Hasegawa, Shuji Isobe, Jun-ya Iwazaki, Eisuke Koizumi, Hiroki Shizuya
2014 J jnl
The RSA Group Is Adaptive Pseudo-Free under the RSA Assumption.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Hiroki Shizuya
2013 Misc conf
Toward Separating the Strong Adaptive Pseudo-freeness from the Strong RSA Assumption.
ACISP
Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Eisuke Koizumi, Hiroki Shizuya
2009 J jnl
On the pseudo-freeness and the CDH assumption.
Int. J. Inf. Sec.
Shingo Hasegawa, Shuji Isobe, Hiroki Shizuya, Katsuhiro Tashiro
2008 J jnl
Making Cryptographic Primitives Harder.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Shingo Hasegawa, Hiroyuki Hatanaka, Shuji Isobe, Eisuke Koizumi, Hiroki Shizuya
2008 J jnl
NPMV-Complete Functions That Compute Discrete Logarithms and Integer Factorization.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Shingo Hasegawa, Shuji Isobe, Hiroki Shizuya