Keitaro Hiwatashi

11 papers A 3B 1Journal 5Unranked 2
YearRankTypeTitle / Venue / Authors
2026 A conf
Ideal Private Simultaneous Messages Schemes and Their Applications.
ITCS
Keitaro Hiwatashi, Reo Eriguchi
2026 J jnl
Lower Bounds on the Bottleneck Complexity of Secure Multiparty Computation.
IACR Commun. Cryptol.
Reo Eriguchi, Keitaro Hiwatashi
2025 J jnl
Ideal Private Simultaneous Messages Schemes and Their Applications.
IACR Cryptol. ePrint Arch.
Keitaro Hiwatashi, Reo Eriguchi
2025 J jnl
Lower Bounds on the Bottleneck Complexity of Secure Multiparty Computation.
IACR Cryptol. ePrint Arch.
Reo Eriguchi, Keitaro Hiwatashi
2025 — conf
Negative Results on Information-Theoretic Additive Randomized Encodings.
ACNS (2)
Keitaro Hiwatashi
2024 J jnl
Correlated Randomness Reduction in Domain-Restricted Secure Two-Party Computation.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Keitaro Hiwatashi, Koji Nuida
2023 B conf
Explicit and Nearly Tight Lower Bound for 2-Party Perfectly Secure FSS.
ACNS
Keitaro Hiwatashi, Koji Nuida
2023 A conf
Exponential Correlated Randomness Is Necessary in Communication-Optimal Perfectly Secure Two-Party Computation.
ITC
Keitaro Hiwatashi, Koji Nuida
2022 J jnl
An Efficient Secure Division Protocol Using Approximate Multi-Bit Product and New Constant-Round Building Blocks.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Keitaro Hiwatashi, Satsuya Ohata, Koji Nuida
2021 A conf
Accelerating Secure (2+1)-Party Computation by Insecure but Efficient Building Blocks.
AsiaCCS
Keitaro Hiwatashi, Ken Ogura, Satsuya Ohata, Koji Nuida
2020 — conf
An Efficient Secure Division Protocol Using Approximate Multi-bit Product and New Constant-Round Building Blocks.
ACNS (1)
Keitaro Hiwatashi, Satsuya Ohata, Koji Nuida