[PDF] Top 20 Cryptanalysis of 1-Round KECCAK

... Our approach gives a preimage and collision attack to all the variants of 1 round KECCAK hash functions. These are currently the fastest attacks known. These attacks does not pose a threat to the ... See full document

... At FSE 2008, Leurent [8] proposed the preimage attack on the full MD4 hash function. From then on, many techniques are proposed to improve the preimage attacks. One of them is the meet-in-the-middle (MitM) preimage ... See full document

... linear cryptanalysis is not as good as its predecessors ...algorithm 1 of Matsui, covers 13 rounds we present a linear attack in this senario which covers 14 rounds of ...algorithm 1 of Matsui, we ... See full document

... As the time complexity of the guess-and-determine algorithm is proportional to the number of guesses it makes, we need to carefully analyze the ratio be- tween the number of guessed bits, and the number of filtering ... See full document

... 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

... technique that does not require the constraint [11]. They successfully applied their approach to the DES. This approach has been also used in the cryptanalysis of reduced Serpent [20,21]. Linear Hulls. If there ... See full document

... The data complexity is 2 32 known plaintexts. The memory complexity is the storing of remaining key candidates in step 11, which is 2 48.919 × 54/32 = 2 49.674 states. The time complexity is also dominated by Step 11. In ... See full document

... 5. Biryukov, A., Bouillaguet, C., Khovratovich, D.: Cryptographic schemes based on the ASASA structure: Black-box, white-box, and public-key (extended abstract). In Sarkar, P., Iwata, T., eds.: Advances in Cryptology - ... See full document

... guessed key bits in Table 6 in the preprocessing phase, and for the other related key bits except the guessed key bits, we set auxiliary variables in the same column for each key bit. When the auxiliary variables are ... See full document

... To calculate the differential path by our algorithm using the pDDT table, we are using the main function in Algorithm 6. The calculated weight from round 1 to the current round is represented by ... See full document

... Abstract. SKINNY is a family of lightweight tweakable block ciphers designed to have the smallest hardware footprint. In this paper, we present zero-correlation linear approximations and the related-tweakey impossible ... See full document

... the round-reduced Keccak- ...in Keccak, we find cubes with eighteen ...of Keccak-MAC against the divide-and-conquer attack, we theoretically analyse the lower bounds of the complexity of the ... See full document

... proposed in [14]. To verify the theoretical model of zero-correlation attacks [3] we implement the described attack on a small variant of LBlock with block length 32-bit. Two optimal word-wise permu- tations for improved ... See full document

... of Keccak hash function by selecting message blocks in a small subspace 5 such that a high-probability characteristic might map them to a small subspace after a certain number of rounds of Keccak-f ...find ... See full document

... Platform. To evaluate our design, we deploy it into a Spartan-6 Xilinx FPGA on a Sakura-G board, which is specifically designed for side-channel evaluation. To reduce the noise during the evaluation we split the ... See full document

... Starting from Figure 2 each operation is replaced with the appropriate constraint(s). This is repeated for each round of the round-reduced cipher, where the output constraints of a round are treated ... See full document

... Several years later, a new technique to find integral distinguishers was proposed at Eurocrypt 2015: the division property [27], a generalization of the integral property. It can effectively construct the integral ... See full document

... Abstract. SKINNY is a new lightweight tweakable block cipher family proposed by Beierle et al. at CRYPTO 2016. SKINNY has 6 main vari- ants where SKINNY-n-t is a block cipher that operates on n-bit blocks using t-bit ... See full document

... Cube-attack-like cryptanalysis on round-reduced Keccak was proposed by Dinur et ...for Keccak -based constructions with small nonce or message block ...attack-like cryptanalysis on ... See full document

... that lead to one of the 16 possible differences given in Table 10. Since there are 2 28 possible values for the 7 key nibbles and that we repeat these operations for each of the 2 33.31 pairs, this step is made 2 61.31 ... See full document