Results 11 to 20 of about 234 (160)
Classical and Quantum Meet-in-the-Middle Nostradamus Attacks on AES-like Hashing
IACR Transactions on Symmetric Cryptology, 2023 At EUROCRYPT 2006, Kelsey and Kohno proposed the so-called chosen target forced-prefix (CTFP) preimage attack, where for any challenge prefix P, the attacker can generate a suffix S such that H(P∥S) = y for some hash value y published in advance by the ...
Zhiyu Zhang +3 more
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Improved Preimage Attacks on 4-Round Keccak-224/256
IACR Transactions on Symmetric Cryptology, 2021 This paper provides an improved preimage attack method on standard 4-round Keccak-224/256. The method is based on the work pioneered by Li and Sun, who design a linear structure of 2-round Keccak-224/256 with 194 degrees of freedom left.
Le He, Xiaoen Lin, Hongbo Yu
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A Preimage Attack on the MJH Hash Function
Journal of the Korea Institute of Information Security and Cryptology, 2016 Jongsung Kim
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Preimage and Collision Attacks on MD2 [PDF]
, 2005 This paper contains several attacks on the hash function MD2 which has a hash code size of 128 bits. At Asiacrypt 2004 Muller presents the first known preimage attack on MD2. The time complexity of the attack is about 2104 and the preimages consist always of 128 blocks.
Lars R. Knudsen, John Erik Mathiassen
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Preimage attacks on reduced‐round Keccak hash functions by solving algebraic systems
IET Information Security, 2023 In this paper, improved preimage attacks are presented on 3‐round Keccak‐256 and Keccak‐512 and 4‐round Keccak‐256 based on algebraic methods. The authors propose some new properties about the components of Keccak permutation, reconsider the existing ...
Junling Pei, Lusheng Chen
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Preimage Attacks on Reduced-Round Stribog [PDF]
, 2014 In August 2012, the Stribog hash function was selected as the new Russian cryptographic hash standard (GOST R 34.11-2012). Stribog employs twelve rounds of an AES-based compression function operating in Miyaguchi-Preneel mode. In this paper, we investigate the preimage resistance of the Stribog hash function.
Riham AlTawy, Amr M. Youssef
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Improved Meet-in-the-Middle Preimage Attacks against AES Hashing Modes
IACR Transactions on Symmetric Cryptology, 2020 Hashing modes are ways to convert a block cipher into a hash function, and those with AES as the underlying block cipher are referred to as AES hashing modes.
Zhenzhen Bao +4 more
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Improved Preimage Attacks on 3-Round Keccak-224/256
IACR Transactions on Symmetric Cryptology, 2021 In this paper, we provide an improved method on preimage attacks of standard 3-round Keccak-224/256. Our method is based on the work by Li and Sun. Their strategy is to find a 2-block preimage instead of a 1-block one by constructing the first and second
Xiaoen Lin, Le He, Hongbo Yu
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Preimage Attacks on Some Hashing Modes Instantiating Reduced-Round LBlock
IEEE Access, 2018 In this paper, we present preimage attacks on several hashing modes instantiating reduced-round LBlock. It is observed that the omission of the network twist in the last round and the diffusion of the permutation in round function are the key points for ...
Shiwei Chen, Chenhui Jin
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Applying Grover's Algorithm to Hash Functions: A Software Perspective
IEEE Transactions on Quantum Engineering, 2022 Quantum software frameworks provide software engineers with the tools to study quantum algorithms as applied to practical problems. We implement classical hash functions MD5, SHA-1, SHA-2, and SHA-3 as quantum oracles to study the computational resource ...
Richard H. Preston
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