[PDF] Top 20 Automatic Search for Differential Trails in ARX Ciphers (Extended Version)

... DES-like ciphers, to the class of ARX ...to ciphers that do not have ...block ciphers TEA, XTEA, SPECK and ...setting. Differential trails on 9, 10 and 13 rounds are found for ... See full document

... the differential behavior of block ciphers Simon and Speck ...for automatic search for differential trails in ARX ciphers called threshold search ...better ... See full document

... 6. Daemen, J., Govaerts, R., Vandewalle, J.: Correlation matrices. In: Fast Software Encryption: Second International Workshop. Leuven, Belgium, 14-16 December 1994, Proceedings. pp. 275–285 (1994), ... See full document

... possible trails by 2. An algorithm enumerating all related-tweak truncated trails such that the probability of all differential trails that conform to them is below a given threshold, is ... See full document

... its differential patterns, we present a novel MILP modelling technique which can be used to search for the character- istics with the maximal probability, rather than the characteristics with the smallest ... See full document

... first ARX- based family of block ciphers that provides provable bounds on the maximal length of differential characteristics and linear ...for ARX-based symmetric-key primitives to obtain ... See full document

... Impossible differential attack is one of powerful methods for analyzing block ...block ciphers, it must be safe for impossible differential ...impossible differential attack, the attack starts ... See full document

... block ciphers - SKINNY was ...against differential cryptanalysis in the related-tweakey ...ential trails of SKINNY and search for the longest impossible and rectangle distin- guishers where ... See full document

... above constraints, whereas 0x9 = 1001 → 0xB = 1011 is not a valid difference propagation pattern for the PRESENT S-box, which can be seen from the differential distribution table of the PRESENT S-box. Hence, we ... See full document

... block ciphers known so far are not found by the U - method and the UID-method, but constructed by ad hoc approaches and the experience of cryptanalysts, such as 8-round MIBS [3], 6-round E2 [25], 8-round Camellia ... See full document

... certain differential probability ...the differential probability weight monotonously, which can exclude the search space of impossible large probability weight of the first ...the automatic ... See full document

... general automatic search algorithms in ARX ciphers, and they can all find the optimal trails on round- reduced variants of ...other ARX ciphers except ...of ARX ... See full document

... three ARX operations (modular Addition, bitwise Rotation, and bitwise XOR) which operate on 32-bit ...good differential characteristics in ARX ...good differential path and there is no obvious ... See full document

... against differential attack. Despite SPN ciphers which enjoy some provable upper bounds for the probability of differential characteristics, such a feature for the ARX structures has not yet ... See full document

... Comparingtwo attacks above, we realize there are some improvement for time efficiency. The observation captures our attention and prompts us to improve the attack. Consequently, we mount a more efficient attack. First, ... See full document

... In [eprint.iacr.org/2009/117] method of virtual isomorphisms of ciphers was proposed for cryptanalysis. Cipher is vulnerable to an attack iff isomorphic cipher is vulnerable to this attack. That method is based on ... See full document

... In recent years, many automated tools were proposed that could help designers to prove bounds against differential/linear attacks. Mouha et al. [42] used Mixed Integer Linear Programming (MILP) to count active ... See full document

... neighborhood search (VNS) with an adaptive penalty ...harmony search algorithm to solve ...local search method for redundancy allocation of series–parallel ...Tabu search (TS) approach to ... See full document

... b) Linear cryptanalysis: Matsui and Yamagishi first devised linear cryptanalysis in an attack on Fast Data Encipherment Algorithm (FEAL) [10]. It was developed by Matsui to attack DES. It is the widely used attack on ... See full document

... standard differential attack, with one round of partial decryption, seems feasible for not more than 7 ...standard differential attacks, the data complexity for 7 rounds is reduced by a factor of 2 5 ... See full document