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Exploiting Strong Key Bridges: Full-Fledged Automatic Rectangle Attacks on Deoxys-BC and SKINNY
. The TWEAKEY framework provides a generic construction for designing tweakable block ciphers. Prominent instances are Deoxys-BC and SKINNY, which have been standardized by ISO/IEC.
Qianqian Yang +6 more
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Automatic Search Model for Related-Tweakey Impossible Differential Cryptanalysis [PDF]
Lecture Notes in Computer Science, 2023 The design and analysis of dedicated tweakable block ciphers constitute a dynamic and relatively recent research field in symmetric cryptanalysis. The assessment of security in the related-tweakey model is of utmost importance owing to the existence of a
Lin Jiao, Yongqiang Li, Huiqin Chen
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Related-Tweakey Impossible Differential Attack on Reduced-Round SKINNY-AEAD M1/M3 [PDF]
Lecture Notes in Computer Science, 2022 SKINNY-AEAD is one of the second-round candidates of the Lightweight Cryptography Standardization project held by NIST. SKINNY-AEAD M1 is the primary member of six SKINNY-AEAD schemes, while SKINNY-AEAD M3 is another member with a small tag.
Chao Niu, Meiqin Wang
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Tweaks and Keys for Block Ciphers: The TWEAKEY Framework [PDF]
Lecture Notes in Computer Science, 2014 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 arbitrary tweak and key sizes, given the public round permutation (for instance, the AES round ...
Ivica Nikolić, Thomas Peyrin
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Related-tweakey impossible differential attack on QARMA-128
Science China Information Sciences, 2021Meiqin Wang, Juan Du, Muzhou Li
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Related-tweakey impossible differential attack on reduced-round Deoxys-BC-256
Science China Information Sciences, 2019Deoxys-BC is the internal tweakable block cipher of Deoxys, a third-round authenticated encryption candidate at the CAESAR competition. In this study, by adequately studying the tweakey schedule, we seek a six-round related-tweakey impossible distinguisher of Deoxys-BC-256, which is transformed from a 3.5-round single-key impossible distinguisher of ...
Xiaoyun Wang, Rui Zong
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Single Tweakey Cryptanalysis of Reduced-Round SKINNY-64 [PDF]
Lecture Notes in Computer Science, 2020 Skinny is a lightweight tweakable block cipher which received a great deal of cryptanalytic attention following its elegant structure and efficiency. Inspired by the Skinny competitions, multiple attacks on it were reported in different settings (e.g ...
Orr Dunkelman, Eran Lambooij
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Zero-Correlation Linear Cryptanalysis with Equal Treatment for Plaintexts and Tweakeys
2021The original zero-correlation linear attack on a tweakable block cipher \(E_{K, T}\) (\(E_{K, T}\) is an ordinary block cipher when \(|T| = 0\)) with key K and tweak T exploits linear approximations \(\langle \alpha , x \rangle \oplus \langle \beta , E_{K,T}(x) \rangle \) with correlation zero for any fixed K and T, where the correlation is computed ...
Chao Niu +3 more
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Improved Related-Tweakey Boomerang Attacks on Deoxys-BC
Lecture Notes in Computer Science, 2018This paper improves previous distinguishers and key recovery attacks against Deoxys-BC that is a core primitive of the authenticated encryption scheme Deoxys, which is one of the remaining candidates in CAESAR. We observe that previous attacks by Cid et al. published from ToSC 2017 have a lot of room to be improved.
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New Related-Tweakey Boomerang Attacks and Distinguishers on Deoxys-BC
Chinese Journal of ElectronicsLin Tan
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