Akinori Hosoyamada
Akinori Hosoyamada
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Quantum attacks without superposition queries: the offline Simon’s algorithm
X Bonnetain, A Hosoyamada, M Naya-Plasencia, Y Sasaki, ...
International Conference on the Theory and Application of Cryptology and …, 2019
Quantum Demiric-Selçuk meet-in-the-middle attacks: applications to 6-round generic Feistel constructions
A Hosoyamada, Y Sasaki
Security and Cryptography for Networks: 11th International Conference, SCN …, 2018
Finding hash collisions with quantum computers by using differential trails with smaller probability than birthday bound
A Hosoyamada, Y Sasaki
Advances in Cryptology–EUROCRYPT 2020: 39th Annual International Conference …, 2020
Quantum chosen-ciphertext attacks against Feistel ciphers
G Ito, A Hosoyamada, R Matsumoto, Y Sasaki, T Iwata
Topics in Cryptology–CT-RSA 2019: The Cryptographers' Track at the RSA …, 2019
Cryptanalysis against symmetric-key schemes with online classical queries and offline quantum computations
A Hosoyamada, Y Sasaki
Cryptographers’ Track at the RSA Conference, 198-218, 2018
4-round Luby-Rackoff construction is a qPRP
A Hosoyamada, T Iwata
International Conference on the Theory and Application of Cryptology and …, 2019
Quantum collision attacks on reduced SHA-256 and SHA-512
A Hosoyamada, Y Sasaki
Annual International Cryptology Conference, 616-646, 2021
On quantum related-key attacks on iterated Even-Mansour ciphers
A Hosoyamada, K Aoki
IEICE Transactions on Fundamentals of Electronics, Communications and …, 2019
Building quantum-one-way functions from block ciphers: Davies-Meyer and Merkle-Damgård constructions
A Hosoyamada, K Yasuda
Advances in Cryptology–ASIACRYPT 2018: 24th International Conference on the …, 2018
Quantum multicollision-finding algorithm
A Hosoyamada, Y Sasaki, K Xagawa
Advances in Cryptology–ASIACRYPT 2017: 23rd International Conference on the …, 2017
Quantum cryptanalysis on contracting Feistel structures and observation on related-key settings
C Cid, A Hosoyamada, Y Liu, SM Sim
Progress in Cryptology–INDOCRYPT 2020: 21st International Conference on …, 2020
Finding collisions in a quantum world: quantum black-box separation of collision-resistance and one-wayness
A Hosoyamada, T Yamakawa
Advances in Cryptology–ASIACRYPT 2020: 26th International Conference on the …, 2020
Improved quantum multicollision-finding algorithm
A Hosoyamada, Y Sasaki, S Tani, K Xagawa
International Conference on Post-Quantum Cryptography, 350-367, 2019
Provably quantum-secure tweakable block ciphers
A Hosoyamada, T Iwata
IACR Transactions on Symmetric Cryptology, 337-377, 2021
Quantum algorithm for the multicollision problem
A Hosoyamada, Y Sasaki, S Tani, K Xagawa
Theoretical Computer Science 842, 100-117, 2020
Improved attacks on sliscp permutation and tight bound of limited birthday distinguishers
A Hosoyamada, M Naya-Plasencia, Y Sasaki
Cryptology ePrint Archive, 2020
On tight quantum security of HMAC and NMAC in the quantum random oracle model
A Hosoyamada, T Iwata
Advances in Cryptology–CRYPTO 2021: 41st Annual International Cryptology …, 2021
Birthday-bound slide attacks on TinyJAMBU’s keyed-permutations for all key sizes
F Sibleyras, Y Sasaki, Y Todo, A Hosoyamada, K Yasuda
International Workshop on Security, 107-127, 2022
Cryptanalysis of Rocca and feasibility of its security claim
A Hosoyamada, A Inoue, R Ito, T Iwata, K Minematsu, F Sibleyras, Y Todo
IACR Transactions on Symmetric Cryptology, 123-151, 2022
4-round Luby-Rackoff construction is a qPRP: tight quantum security bound
A Hosoyamada, T Iwata
Cryptology ePrint Archive, 2019
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