[PDF] Top 20 Improved Differential Cryptanalysis on Generalized Feistel Schemes

... the differential propagation slower in the decryption than in the ...be improved by considering the asymmetry of Type-1 Generalized Feistel ...the cryptanalysis, it is undesired for the ... See full document

... truncated differential trail in the cipher layered by ...truncated differential characteristics and the edges the possible transitions between them, and are labeled by their numbers of guessed-cells and ... See full document

... of Feistel constructions (see [19, 24, ...be generalized to more keys, namely, what is the minimal number of rounds for which mn-bit security can be achieved for n-bit iterated EM constructions with m ... See full document

... a Feistel cipher, the subkey for one round is usually much shorter than the master key, so that this attack recovers a partial key without considering the remaining ... See full document

... in differential cryptanalysis, since they describe the probabilities of all the possible iterative characteristics which can be concate- nated to themselves an arbitrarily large number of times in a ... See full document

... Linear cryptanalysis tries to take advantage of high probability occurrences of linear expressions involving plaintext bits, ci- phertext bits and subkey ...classical Feistel schemes with random ... See full document

... Abstract. AES-based functions have attracted of a lot of analysis in the recent years, mainly due to the SHA-3 hash function competition. In particular, the rebound attack allowed to break several proposals and many ... See full document

... of differential and linear ...SPN, feistel and generalized feistel structure with the additional condition that the round function should be bijective for impossible, integral and zero ...and ... See full document

... 3-round Feistel networks. However, generalized Feistel schemes (GFS) have not been systematically investigated against quantum ...some generalized Feistel ...(CAST256-like ... See full document

... with improved combinations of time and memory ...significantly improved the time/memory tradeoff achievable by MITM attacks on multiple encryption schemes with more than 3 ... See full document

... from cryptanalysis of block ci- phers ...generic Feistel construction, Guo et ...on Feistel-2 and a 14-round attack on Feistel-3 in 2014 with the meet-in-the-middle technique ...best ... See full document

... good differential paths in ARX ciphers. Finding a differential trail becomes a problem since a huge state space exists and there is no clear and obvious way to take the next ...good differential ... See full document

... The rest of the paper is organized as follows. In Section 2, we give a short overview of multivariate cryptography and introduce the HFEv- cryptosystem, while Section 3 reviews the previous cryptanalysis of this ... See full document

... This attack suffers from several problems: first, as noted in [14] and later in [12], the authors omitted to take into account the undisturbed bits. In addition to that, [12] reveals that the 6 Sbox differences that are ... See full document

... an improved cryptanalysis of the double-branch hash function standard ...potential differential paths that can be constructed from a difference in a single message word and show that some of these ... See full document

... The rise of ubiquitous computing applications in the past decade has highlighted the critical- ity of using low-computing devices that are usually incapable of fully performing standard cryptographic algorithms in RFID ... See full document

... SIMON and SPECK [6] are two lightweight block cipher families designed by NSA that have attracted numerous cryptanalysis since their publication in 2013 [9,18,2,4,3,23,24,21]. SIMON is optimized for hardware ... See full document

... related-tweak differential cryptanalysis on 8 rounds of Deoxys-BC-256 without proposing a specific ...impossible differential attacks on 8-round Deoxys-BC-256 in the related-tweak single-key ... See full document

... Our improved scheme can be proved to be IND-CCA2 secure and existentially unforgeable-adaptive chosen message attack (EUF-CMA) under computational Diffie-Hellman (CDH) ... See full document

... form ∆β → ∆ζ. When the intermediate differences ∆γ, ∆ζ do not match, the differential ∆δ → ∆β that covers the whole cipher E holds with zero probability. The designers of SKINNY exhaustively searched for the ... See full document