Results 1 to 10 of about 15,819,635 (254)
Constructions of Beyond-Birthday Secure PRFs from Random Permutations, Revisited
Entropy, 2021 In CRYPTO 2019, Chen et al. showed how to construct pseudorandom functions (PRFs) from random permutations (RPs), and they gave one beyond-birthday secure construction from sum of Even-Mansour, namely SoEM22 in the single-key setting.
Jiehui Nan, Ping Zhang, Honggang Hu
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Tight Multi-User Security Bound of DbHtS
IACR Transactions on Symmetric Cryptology, 2023 In CRYPTO’21, Shen et al. proved that Two-Keyed-DbHtS construction is secure up to 22n/3 queries in the multi-user setting independent of the number of users.
Nilanjan Datta +3 more
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Generalized Feistel Structures Based on Tweakable Block Ciphers
IACR Transactions on Symmetric Cryptology, 2022 A generalized Feistel structure (GFS) is a classical approach to construct a block cipher from pseudorandom functions (PRFs). Coron et al. at TCC 2010 instantiated a Feistel structure with a tweakable block cipher (TBC), and presented its provable ...
Kazuki Nakaya, Tetsu Iwata
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Beyond-Birthday-Bound Secure Cryptographic Permutations from Ideal Ciphers with Long Keys
IACR Transactions on Symmetric Cryptology, 2020 Coron et al. showed a construction of a 3-round 2n-bit cryptographic permutation from three independent n-bit ideal ciphers with n-bit keys (TCC 2010).
Ryota Nakamichi, Tetsu Iwata
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Iterative Block Ciphers from Tweakable Block Ciphers with Long Tweaks
IACR Transactions on Symmetric Cryptology, 2020 We consider a problem of constructing a secure block cipher from a tweakable block cipher (TBC) with long tweaks. Given a TBC with n-bit blocks and Γn-bit tweaks for Γ ≥ 1, one of the constructions by Minematsu in DCC 2015 shows that a simple iteration ...
Ryota Nakamichi, Tetsu Iwata
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Molecules, 2022 Reaction F + H2S→SH + HF (1) is an effective source of SH radicals and an important intermediate in atmospheric and combustion chemistry. We employed a discharge-flow, modulated molecular beam mass spectrometry technique to determine the rate coefficient
Yuri Bedjanian
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Frontiers in Surgery, 2023 BackgroundThe biomedical glue sling technique is a convenient and effective method for vertebrobasilar artery-associated cranial nerve diseases but postoperative hemorrhage is poorly understood.MethodsWe retrospectively reviewed 14 of 1157 patients ...
Jiang Liu +4 more
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Molecules, 2023 The hydrogen/deuterium sorption properties of Ni33Ti39Nb28 synthesized by the vacuum induction melting technique were measured between 400 and 495 °C for pressure lower than 3 bar.
Oriele Palumbo +4 more
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Catalysis Communications, 2023 Boron was implemented to promote the catalytic behavior of H-ZSM-5 zeolite in methanol to propylene (MTP) process. A series of crystalline borosilicates with different boron contents were synthesized using a seed-assisted hydrothermal technique and ...
Hossein Roohollahi +3 more
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DISPERSION IN A TWO-PHASE FLOW SULZER COLUMN
Studia Universitatis Babes-Bolyai Chemia, 2023 An experimental study based on the pulse-response technique was performed in a Sulzer packed-bed column in order to establish the residence time distribution for four different liquid flow rates, namely 200, 400, 600 and 800 L/h and five different gas ...
Eugenia Teodora IACOB TUDOSE
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