Results 1 to 10 of about 15,909 (208)
Optimally Secure Tweakable Block Ciphers with a Large Tweak from n-bit Block Ciphers [PDF]
IACR Transactions on Symmetric Cryptology, 2023 We consider the design of a tweakable block cipher from a block cipher whose inputs and outputs are of size n bits. The main goal is to achieve 2n security with a large tweak (i.e., more than n bits). Previously, Mennink at FSE’15 and Wang et al.
Yaobin Shen, François-Xavier Standaert
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The QARMAv2 Family of Tweakable Block Ciphers [PDF]
IACR Transactions on Symmetric Cryptology, 2023 We introduce the QARMAv2 family of tweakable block ciphers. It is a redesign of QARMA (from FSE 2017) to improve its security bounds and allow for longer tweaks, while keeping similar latency and area.
Roberto Avanzi +6 more
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BipBip: A Low-Latency Tweakable Block Cipher with Small Dimensions
Transactions on Cryptographic Hardware and Embedded Systems, 2022 Recently, a memory safety concept called Cryptographic Capability Computing (C3) has been proposed. C3 is the first memory safety mechanism that works without requiring extra storage for metadata and hence, has the potential to significantly enhance the
Yanis Belkheyar +4 more
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Provably Quantum-Secure Tweakable Block Ciphers
IACR Transactions on Symmetric Cryptology, 2021 Recent results on quantum cryptanalysis show that some symmetric key schemes can be broken in polynomial time even if they are proven to be secure in the classical setting.
Akinori Hosoyamada, 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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CRAFT: Lightweight Tweakable Block Cipher with Efficient Protection Against DFA Attacks
IACR Transactions on Symmetric Cryptology, 2019 Traditionally, countermeasures against physical attacks are integrated into the implementation of cryptographic primitives after the algorithms have been designed for achieving a certain level of cryptanalytic security.
Christof Beierle +3 more
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Efficient Attack Scheme against SKINNY-64 Based on Algebraic Fault Analysis [PDF]
Entropy, 2023 Lightweight block ciphers are normally used in low-power resource-constrained environments, while providing reliable and sufficient security. Therefore, it is important to study the security and reliability of lightweight block ciphers.
Xing Fang +4 more
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Weak Tweak-Keys for the CRAFT Block Cipher
IACR Transactions on Symmetric Cryptology, 2022 CRAFT is a lightweight tweakable Substitution-Permutation-Network (SPN) block cipher optimized for efficient protection of its implementations against Differential Fault Analysis (DFA) attacks.
Gregor Leander, Shahram Rasoolzadeh
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Impossible Differential Cryptanalysis of Reduced-Round Tweakable TWINE [PDF]
Progress in Cryptology - AFRICACRYPT 202012th International Conference on Cryptology in Africa, 2020 Tweakable TWINE (T-TWINE) is a new lightweight tweakable block cipher family proposed by Sakamoto $et$ $al$. at IWSEC 2019. T-TWINE is the first Tweakable Block Cipher (TBC) that is built on Generalized Feistel Structure (GFS).
Tolba M, ElSheikh M, Youssef A.
europepmc +3 more sources
Impossible differential cryptanalysis of lightweight tweakable block cipher CRAFT
CybersecurityThe CRAFT cipher is a lightweight tweakable block cipher introduced at FSE 2019. Its design aims to incorporate countermeasures against Differential Fault Attacks at the algorithmic level.
Fen Liu +5 more
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