Offset-Based BBB-Secure Tweakable Block-ciphers with Updatable Caches [PDF]
, 2022 A nonce-respecting tweakable blockcipher is the building-block for the OCB authenticated encryption mode. An XEX-based TBC is used to process each block in OCB.
Arghya Bhattacharjee +2 more
core
Truncated Differential Attacks: New Insights and 10-round Attacks on QARMA [PDF]
, 2023 Truncated differential attacks were introduced by Knudsen in 1994 [1]. They are a well-known family that has arguably received less attention than some other variants of differential attacks.
Akram Khalesi +4 more
core
XHX - A Framework for Optimally Secure Tweakable Block Ciphers from Classical Block Ciphers and Universal Hashing [PDF]
, 2021 Tweakable block ciphers are important primitives for designing cryptographic schemes with high security. In the absence of a standardized tweakable block cipher, constructions built from classical block ciphers remain an interesting research topic in ...
Ashwin Jha +4 more
core
Tweaks and Keys for Block Ciphers: the TWEAKEY Framework [PDF]
, 2015 We propose the TWEAKEY framework with goal to unify the design of tweakable block ciphers and of block ciphers resistant to related-key attacks. Our framework is simple, extends the key-alternating construction, and allows to build a primitive with ...
Ivica Nikolić +2 more
core
Related-Tweak Statistical Saturation Cryptanalysis and Its Application on QARMA [PDF]
, 2019 Statistical saturation attack takes advantage of a set of plaintext with some bits fixed while the others vary randomly, and then track the evolution of a non-uniform plaintext distribution through the cipher.
Kai Hu, Meiqin Wang, Muzhou Li
core +2 more sources
MILP-Aided Bit-Based Division Property for Primitives with Non-Bit-Permutation Linear Layers [PDF]
, 2019 Division property is a general integral property introduced by Todo at EUROCRYPT 2015. Recently, at ASIACRYPT 2016, Xiang et al. applied the Mixed Integer Linear Programming (MILP) method to search bit-based division property, and handled the complexity ...
Ling Sun, Meiqin Wang, Wei Wang
core
Generalized Related-Key Rectangle Attacks on Block Ciphers with Linear Key Schedule: Applications to SKINNY and GIFT [PDF]
, 2020 This paper gives a new generalized key-recovery model of related-key rectangle attacks on block ciphers with linear key schedules. The model is quite optimized and applicable to various block ciphers with linear key schedule. As a proof of work, we apply
Boxin Zhao +4 more
core
Impossible-Differential and Boomerang Cryptanalysis of Round-Reduced Kiasu-BC [PDF]
, 2016 Kiasu-BC is a tweakable block cipher proposed by Jean et al. at ASIACRYPT 2014 alongside their TWEAKEY framework. The cipher is almost identical to the AES-128 except for the tweak, which renders it an attractive primitive for various modes of operation ...
Christoph Dobraunig, Eik List
core
ZCZ - Achieving n-bit SPRP Security with a Minimal Number of Tweakable-block-cipher Calls [PDF]
, 2018 Strong Pseudo-random Permutations (SPRPs) are important for various applications. In general, it is desirable to base an SPRP on a single-keyed primitive for minimizing the implementation costs.
A Luykx +27 more
core +1 more source
MILP-aided Cryptanalysis of Round Reduced ChaCha [PDF]
, 2017 The inclusion of ChaCha20 and Poly1305 into the list of supported ciphers in TLS 1.3 necessitates a security evaluation of those ciphers with all the state-of-the-art tools and innovative cryptanalysis methodologies.
Florian Caullery +2 more
core +1 more source