[PDF] Top 20 Cryptanalysis of Reduced-Round Whirlwind (Full Version)

... A natural scenario to adapt this tweaked framework without truncation is to generate short preimages for certain hash primitives by fixing partial values of the padding. The idea of generating short preimages by fixing ... See full document

... In this section, we improve the preimage attack on 6-round GOST-512 in [31]. First we reduce the time complexity from 2 505 to 2 496 by removing the unnecessary Meet-in-the- Middle (MitM) step. Then we show a ... See full document

... Contribution. This work complements the analysis by [15] with differential- based attacks on Kiasu-BC on eight rounds of Kiasu-BC . Our attacks share the observation that a chosen non-zero tweak difference allows to ... See full document

... hull cryptanalysis is presented by Nyberg [13] in ...linear cryptanalysis on KATAN has been ...linear cryptanalysis proposed by the designers is not accurate owing to ignoring the dependence of the ... See full document

... Abstract: Lightweight cryptography is a rapidly evolving area of research and it has great impact especially on the new computing environment called the Internet of Things (IoT) or the Smart Object networks (Holler et ... See full document

... S-boxes in this characteristic are independent according to our test. Besides, this characteristic of SIMON128 with bias 2 −62 is the linear characteristic that covers most rounds and simultaneously meets the condition ... See full document

... Abstract. Sparx is a family of ARX-based block ciphers designed ac- cording to the long-trail strategy (LTS) that were both introduced by Dinu et al. at ASIACRYPT’16. Similar to the wide-trail strategy, the LTS allows ... See full document

... i.e., 7 rounds) and showing certain improvements (complexity around 2 243 ) by exploiting additional Probabilistic Neutral Bits. More importantly, we describe a novel idea that explores proper choice of IVs corresponding ... See full document

... In the attack the adversary knows 640-bit hash — first 10 lanes of the state after 4 rounds. When we go back from the hash to θ in the 4th round, 10 lanes of bits are known but their places in the state have ... See full document

... Given the 17-round approximation for SIMON-48, introduced in Section 5.3, we apply the ap- proach presented in Section 5.4 to extend key recovery over more number of rounds. Our key recovery for SIMON-48/72 and ... See full document

... First, we note that for 6 rounds the degree of the output bits is generally 2 6 = 64, and thus the preprocessing phase of the standard cube attack is too expensive to perform (without exploiting some internal ... See full document

... PRINCE has already gained a lot of attention from the academic community and some interesting cryptanalysis has been published [3, 7, 10, 11]. However, most of the attacks are the- oretical, usually with very high ... See full document

... whitening round that deviates the chaining value (key) from the message by one ...nonlinear round on finding free-start collision has been ...public cryptanalysis of this new Russian standard that ... See full document

... integral cryptanalysis has been used to anlyze block ciphers in the known key setting [18, 8, 20] and to present distinguishers for the components of hash ... See full document

... linear cryptanalysis, this results in a signifi- cant reduction of the data ...the reduced data complexity usually leads to a reduced time ...linear cryptanalysis with partial key guesses [16] ... See full document

... establish the merging phase. During our search for the linear part of the differential path, we found it much harder to find good ones for RIPEMD-160 compared to RIPEMD-128. The reason is that the diffusion of the step ... See full document

... In this paper, we have presented a preimage attack on the 2 rounds of round- reduced Keccak-384. The attack is not yet practical but it is much better than the existing best-known attack in term of the time ... See full document

... key. Round function of Present , which is depicted in Figure 1, is same for both versions of Present and consists of standard op- erations such as subkey XOR, substitution and permutation: At the beginning of each ... See full document

... is reduced significantly. Then, we consider Ketje Jr with reduced key ...more round of Ketje Jr V1 (V2) can be attacked if the key size is reduced to 72 (80) ... See full document

... Abstract. SIMON is a family of ten lightweight block ciphers published by Beaulieu et al. from U.S. National Security Agency (NSA). In this paper we investigate the security of SI- MON against different variants of ... See full document