Yusuke Naito

76 papers A* 2A 3B 8C 4Misc 7Journal 40Unranked 12
YearRankTypeTitle / Venue / Authors
2026 J jnl
Beyond-Birthday-Bound Security with HCTR2: Cascaded Construction and Tweak-based Key Derivation.
IACR Cryptol. ePrint Arch.
Yu Long Chen, Yukihito Hiraga, Nicky Mouha, Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2026 J jnl
Key Committing Security of HCTR2, Revisited.
IACR Cryptol. ePrint Arch.
Donghoon Chang, Yu Long Chen, Yukihito Hiraga, Kazuhiko Minematsu, Nicky Mouha, Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2025 — conf
Beyond-Birthday-Bound Security with HCTR2: Cascaded Construction and Tweak-Based Key Derivation.
ASIACRYPT (1)
Yu Long Chen, Yukihito Hiraga, Nicky Mouha, Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2025 J jnl
Committing Wide Encryption Mode with Minimum Ciphertext Expansion.
IACR Trans. Symmetric Cryptol.
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2025 J jnl
Cymric: Short-tailed but Mighty Beyond-birthday-bound Secure Authenticated Encryption for Short Inputs.
IACR Trans. Cryptogr. Hardw. Embed. Syst.
Alexandre Adomnicai, Wonseok Choi, Yeongmin Lee, Kazuhiko Minematsu, Yusuke Naito
2025 J jnl
Cymric: Short-tailed but Mighty.
IACR Cryptol. ePrint Arch.
Alexandre Adomnicai, Wonseok Choi, Yeongmin Lee, Kazuhiko Minematsu, Yusuke Naito
2025 J jnl
KIVR: Committing Authenticated Encryption Using Redundancy and Application to GCM, CCM, and More.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2025 — conf
The Exact Multi-User Security of Key-Alternating Feistel Ciphers with a Single Permutation.
CRYPTO (5)
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2025 C conf
The Multi-user Security of GCM-SST and Further Enhancements.
ISC
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2025 J jnl
Tight Multi-User Security of CCM and Enhancement by Tag-Based Key Derivation Applied to GCM and CCM.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2024 J jnl
Committing Wide Encryption Mode with Minimum Ciphertext Expansion.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2024 — conf
KIVR: Committing Authenticated Encryption Using Redundancy and Application to GCM, CCM, and More.
ACNS (1)
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2024 — conf
The Exact Multi-user Security of (Tweakable) Key Alternating Ciphers with a Single Permutation.
EUROCRYPT (1)
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2024 B conf
The Exact Multi-user Security of 2-Key Triple DES.
CT-RSA
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2024 B conf
The Multi-user Security of MACs via Universal Hashing in the Ideal Cipher Model.
CT-RSA
Yusuke Naito
2023 J jnl
Committing Security of Ascon: Cryptanalysis on Primitive and Proof on Mode.
IACR Trans. Symmetric Cryptol.
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2023 J jnl
Key Committing Security of AEZ and More.
IACR Trans. Symmetric Cryptol.
Yu Long Chen, Antonio Flórez-Gutiérrez, Akiko Inoue, Ryoma Ito, Tetsu Iwata, Kazuhiko Minematsu, Nicky Mouha, Yusuke Naito, Ferdinand Sibleyras, Yosuke Todo
2023 J jnl
MMM: Authenticated Encryption with Minimum Secret State for Masking.
IACR Trans. Cryptogr. Hardw. Embed. Syst.
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2023 C conf
Permutation-Based Deterministic Authenticated Encryption with Minimum Memory Size.
ISC
Yukihito Hiraga, Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2022 — conf
Secret Can Be Public: Low-Memory AEAD Mode for High-Order Masking.
CRYPTO (3)
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2022 J jnl
Secret Can Be Public: Low-Memory AEAD Mode for High-Order Masking.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2022 A* conf
The Multi-User Security of Triple Encryption, Revisited: Exact Security, Strengthening, and Application to TDES.
CCS
Yusuke Naito, Yu Sasaki, Takeshi Sugawara, Kan Yasuda
2021 J jnl
AES-LBBB: AES Mode for Lightweight and BBB-Secure Authenticated Encryption.
IACR Trans. Cryptogr. Hardw. Embed. Syst.
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2021 — conf
Double-Block-Length Hash Function for Minimum Memory Size.
ASIACRYPT (3)
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2020 J jnl
Highly Secure Nonce-based MACs from the Sum of Tweakable Block Ciphers.
IACR Trans. Symmetric Cryptol.
Wonseok Choi, Akiko Inoue, ByeongHak Lee, Jooyoung Lee, Eik List, Kazuhiko Minematsu, Yusuke Naito
2020 J jnl
LM-DAE: Low-Memory Deterministic Authenticated Encryption for 128-bit Security.
IACR Trans. Symmetric Cryptol.
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2020 — conf
Lightweight Authenticated Encryption Mode Suitable for Threshold Implementation.
EUROCRYPT (2)
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2020 J jnl
Lightweight Authenticated Encryption Mode Suitable for Threshold Implementation.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Yu Sasaki, Takeshi Sugawara
2020 J jnl
Lightweight Authenticated Encryption Mode of Operation for Tweakable Block Ciphers.
IACR Trans. Cryptogr. Hardw. Embed. Syst.
Yusuke Naito, Takeshi Sugawara
2020 J jnl
The Exact Security of PMAC with Three Powering-Up Masks.
IACR Cryptol. ePrint Arch.
Yusuke Naito
2019 Misc conf
A Highly Secure MAC from Tweakable Blockciphers with Support for Short Tweaks.
ACISP
Yusuke Naito
2019 J jnl
Lightweight Authenticated Encryption Mode of Operation for Tweakable Block Ciphers.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Takeshi Sugawara
2019 — conf
Optimally Indifferentiable Double-Block-Length Hashing Without Post-processing and with Support for Longer Key Than Single Block.
LATINCRYPT
Yusuke Naito
2019 J jnl
SAEB: A Lightweight Blockcipher-Based AEAD Mode of Operation.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Mitsuru Matsui, Takeshi Sugawara, Daisuke Suzuki
2019 J jnl
The Exact Security of PMAC with Two Powering-Up Masks.
IACR Trans. Symmetric Cryptol.
Yusuke Naito
2018 B conf
Improved Security Bound of LightMAC_Plus and Its Single-Key Variant.
CT-RSA
Yusuke Naito
2018 Misc conf
Keyed Sponge with Prefix-Free Padding: Independence Between Capacity and Online Queries Without the Suffix Key.
ACISP
Yusuke Naito
2018 B conf
On the Efficiency of ZMAC-Type Modes.
CANS
Yusuke Naito
2018 J jnl
SAEB: A Lightweight Blockcipher-Based AEAD Mode of Operation.
IACR Trans. Cryptogr. Hardw. Embed. Syst.
Yusuke Naito, Mitsuru Matsui, Takeshi Sugawara, Daisuke Suzuki
2018 J jnl
Sandwich construction for keyed sponges: independence between capacity and construction queries.
IET Inf. Secur.
Yusuke Naito
2017 — conf
Blockcipher-Based MACs: Beyond the Birthday Bound Without Message Length.
ASIACRYPT (3)
Yusuke Naito
2017 J jnl
Blockcipher-based MACs: Beyond the Birthday Bound without Message Length.
IACR Cryptol. ePrint Arch.
Yusuke Naito
2017 — conf
Improved XKX-Based AEAD Scheme: Removing the Birthday Terms.
LATINCRYPT
Yusuke Naito
2017 — conf
Indifferentiability of Double-Block-Length Hash Function Without Feed-Forward Operations.
ACISP (2)
Yusuke Naito
2017 J jnl
Tweakable Blockciphers for Efficient Authenticated Encryptions with Beyond the Birthday-Bound Security.
IACR Cryptol. ePrint Arch.
Yusuke Naito
2017 J jnl
Tweakable Blockciphers for Efficient Authenticated Encryptions with Beyond the Birthday-Bound Security.
IACR Trans. Symmetric Cryptol.
Yusuke Naito
2016 A* conf
New Bounds for Keyed Sponges with Extendable Output: Independence Between Capacity and Message Length.
FSE
Yusuke Naito, Kan Yasuda
2016 J jnl
New Bounds for Keyed Sponges with Extendable Output: Independence between Capacity and Message Length.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Kan Yasuda
2016 Misc conf
Output Masking of Tweakable Even-Mansour Can Be Eliminated for Message Authentication Code.
SAC
Shoichi Hirose, Yusuke Naito, Takeshi Sugawara
2016 B conf
Replacing SHA-2 with SHA-3 Enhances Generic Security of HMAC.
CT-RSA
Yusuke Naito, Lei Wang
2016 B conf
Sandwich Construction for Keyed Sponges: Independence Between Capacity and Online Queries.
CANS
Yusuke Naito
2015 C conf
Full PRF-Secure Message Authentication Code Based on Tweakable Block Cipher.
ProvSec
Yusuke Naito
2014 Misc conf
Improved Indifferentiable Security Analysis of PHOTON.
SCN
Yusuke Naito, Kazuo Ohta
2014 B conf
Reset Indifferentiability from Weakened Random Oracle Salvages One-Pass Hash Functions.
ACNS
Yusuke Naito, Kazuki Yoneyama, Kazuo Ohta
2013 Misc conf
Generic State-Recovery and Forgery Attacks on ChopMD-MAC and on NMAC/HMAC.
IWSEC
Yusuke Naito, Yu Sasaki, Lei Wang, Kan Yasuda
2012 J jnl
On the Indifferentiable Hash Functions in the Multi-Stage Security Games.
IACR Cryptol. ePrint Arch.
Yusuke Naito
2011 B conf
Blockcipher-Based Double-Length Hash Functions for Pseudorandom Oracles.
Selected Areas in Cryptography
Yusuke Naito
2011 J jnl
Security of Cryptosystems Using Merkle-Damgård in the Random Oracle Model.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yusuke Naito, Kazuki Yoneyama, Lei Wang, Kazuo Ohta
2011 C conf
Security of Practical Cryptosystems Using Merkle-Damgård Hash Function in the Ideal Cipher Model.
ProvSec
Yusuke Naito, Kazuki Yoneyama, Lei Wang, Kazuo Ohta
2010 J jnl
Blockcipher-based Double-length Hash Functions for Pseudorandom Oracles.
IACR Cryptol. ePrint Arch.
Yusuke Naito
2009 J jnl
A Strict Evaluation on the Number of Conditions for SHA-1 Collision Search.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Jun Yajima, Terutoshi Iwasaki, Yusuke Naito, Yu Sasaki, Takeshi Shimoyama, Thomas Peyrin, Noboru Kunihiro, Kazuo Ohta
2009 A conf
How to Confirm Cryptosystems Security: The Original Merkle-Damgård Is Still Alive!
ASIACRYPT
Yusuke Naito, Kazuki Yoneyama, Lei Wang, Kazuo Ohta
2009 J jnl
How to Construct Cryptosystems and Hash Functions in Weakened Random Oracle Models.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Lei Wang, Kazuo Ohta
2009 J jnl
How to Prove the Security of Practical Cryptosystems with Merkle-Damgård Hashing by Adopting Indifferentiability.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Kazuki Yoneyama, Lei Wang, Kazuo Ohta
2009 J jnl
Security of Practical Cryptosystems Using Merkle-Damgard Hash Function in the Ideal Cipher Model.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Kazuki Yoneyama, Lei Wang, Kazuo Ohta
2008 A conf
A strict evaluation method on the number of conditions for the SHA-1 collision search.
AsiaCCS
Jun Yajima, Terutoshi Iwasaki, Yusuke Naito, Yu Sasaki, Takeshi Shimoyama, Noboru Kunihiro, Kazuo Ohta
2008 J jnl
Improved Collision Search for Hash Functions: New Advanced Message Modification.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yusuke Naito, Kazuo Ohta, Noboru Kunihiro
2007 Misc conf
A New Strategy for Finding a Differential Path of SHA-1.
ACISP
Jun Yajima, Yu Sasaki, Yusuke Naito, Terutoshi Iwasaki, Takeshi Shimoyama, Noboru Kunihiro, Kazuo Ohta
2007 J jnl
Improved Collision Attacks on MD4 and MD5.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Yu Sasaki, Yusuke Naito, Noboru Kunihiro, Kazuo Ohta
2006 J jnl
How to Construct Sufficient Condition in Searching Collisions of MD5.
IACR Cryptol. ePrint Arch.
Yu Sasaki, Yusuke Naito, Jun Yajima, Takeshi Shimoyama, Noboru Kunihiro, Kazuo Ohta
2006 — conf
How to Construct Sufficient Conditions for Hash Functions.
VIETCRYPT
Yu Sasaki, Yusuke Naito, Jun Yajima, Takeshi Shimoyama, Noboru Kunihiro, Kazuo Ohta
2006 A conf
Improved Collision Search for SHA-0.
ASIACRYPT
Yusuke Naito, Yu Sasaki, Takeshi Shimoyama, Jun Yajima, Noboru Kunihiro, Kazuo Ohta
2006 J jnl
Message Modification for Step 21-23 on SHA-0.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Yu Sasaki, Takeshi Shimoyama, Jun Yajima, Noboru Kunihiro, Kazuo Ohta
2005 Misc conf
Improved Collision Attack on MD4 with Probability Almost 1.
ICISC
Yusuke Naito, Yu Sasaki, Noboru Kunihiro, Kazuo Ohta
2005 J jnl
Improved Collision Attack on MD4.
IACR Cryptol. ePrint Arch.
Yusuke Naito, Yu Sasaki, Noboru Kunihiro, Kazuo Ohta
2005 J jnl
Improved Collision Attack on MD5.
IACR Cryptol. ePrint Arch.
Yu Sasaki, Yusuke Naito, Noboru Kunihiro, Kazuo Ohta