Results 21 to 30 of about 108,836 (259)
Analysis of an Optimal Fault Attack on the LED-64 Lightweight Cryptosystem
IEEE Access, 2019 This paper presents an optimal method for recovering the secret keys of the light encryption device (LED) by combining the impossible differential fault attack with the algebraic differential fault attack. The proposed optimal method effectively improves
Liang Dong +5 more
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Bit‐level evaluation of piccolo block cipher by satisfiability problem solver
IET Information Security, 2023 In the field of symmetric key cryptography, the security against distinguishing attacks is one of the crucial security requirements. With advancements in computing capabilities and cryptanalysis techniques in recent years, more efficient methods have ...
Shion Utsumi +2 more
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Dianzi Jishu Yingyong, 2021 NBC is a family of block ciphers using Generalized Feistel structure, designed by Xu Hong et al. There are three block and key sizes,i.e.,128/128, 128/256 and 256/256. A 16-bit Sbox is involved in the cipher as the non-linear component.
Yang Jiangshuai +3 more
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New Insights on Impossible Differential Cryptanalysis [PDF]
, 2012 Since its introduction, impossible differential cryptanalysis has been applied to many ciphers. Besides the specific application of the technique in various instances, there are some very basic results which apply to generic structures of ciphers, e.g., the well known 5-round impossible differential of Feistel ciphers with bijective round functions.
Charles Bouillaguet +3 more
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Impossible Differential Cryptanalysis on DVB-CSA
KSII Transactions on Internet and Information Systems, 2016 The Digital Video Broadcasting-Common Scrambling Algorithm is an ETSI-designated algorithm designed for protecting MPEG-2 signal streams, and it is universally used. Its structure is a typical hybrid symmetric cipher which contains stream part and block part within a symmetric cipher, although the entropy is 64 bits, there haven’t any effective ...
Kai Zhang 0026, Jie Guan, Bin Hu 0011
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IACR Transactions on Symmetric Cryptology, 2020 In this paper, a new method for evaluating the integral property, truncated and impossible differentials for substitution-permutation network (SPN) block ciphers is proposed. The main assumption is an explicit description/expression of the internal state
Wenying Zhang +3 more
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An Improved Impossible Differential Attack on MISTY1 [PDF]
, 2008 MISTY1 is a Feistel block cipher that received a great deal of cryptographic attention. Its recursive structure, as well as the added FL layers, have been successful in thwarting various cryptanalytic techniques. The best known attacks on reduced variants of the cipher are on either a 4-round variant with the FL functions, or a 6-round variant without ...
Orr Dunkelman, Nathan Keller
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MILP-Aided Related-Tweak/Key Impossible Differential Attack and its Applications to QARMA, Joltik-BC
IEEE Access, 2019 In this paper, we study the relation of related-tweak/key impossible differentials with single-key ones. Following a heuristic strategy, we can derive longer related-tweak/key impossible differentials from single-key ones. We implement this strategy with
Rui Zong, Xiaoyang Dong
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IACR Transactions on Symmetric Cryptology, 2020 Among the few works realising the search of truncated differentials (TD) and multidimensional linear approximations (MDLA) holding for sure, the optimality of the distinguisher should be confirmed via an exhaustive search over all possible input ...
Ling Sun +3 more
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Mind Your Path: On (Key) Dependencies in Differential Characteristics
IACR Transactions on Symmetric Cryptology, 2022 Cryptanalysts have been looking for differential characteristics in ciphers for decades and it remains unclear how the subkey values and more generally the Markov assumption impacts exactly their probability estimation.
Thomas Peyrin, Quan Quan Tan
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