Results 21 to 30 of about 416,985 (179)
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
doaj +1 more source
Tag Second-preimage Attack against π-cipher [PDF]
, 2014 The π-cipher is one of the candidates of the CAESAR competition. One of the advertised features of the π-cipher is tag second-preimage resistance: it should be hard to generate a message with a given tag, even for the legitimate key holder (insider ...
Leurent, Gaëtan
core +2 more sources
The Legendre Symbol and the Modulo-2 Operator in Symmetric Schemes over Fnp
IACR Transactions on Symmetric Cryptology, 2022 Motivated by modern cryptographic use cases such as multi-party computation (MPC), homomorphic encryption (HE), and zero-knowledge (ZK) protocols, several symmetric schemes that are efficient in these scenarios have recently been proposed in the ...
Lorenzo Grassi +3 more
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Exploiting Weak Diffusion of Gimli: Improved Distinguishers and Preimage Attacks
IACR Transactions on Symmetric Cryptology, 2021 The Gimli permutation proposed in CHES 2017 was designed for cross-platform performance. One main strategy to achieve such a goal is to utilize a sparse linear layer (Small-Swap and Big-Swap), which occurs every two rounds.
Fukang Liu, Takanori Isobe, Willi Meier
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Allocating Rotational Cryptanalysis based Preimage Attack on 4-round Keccak-224 for Quantum Setting [PDF]
, 2022 In this paper, we aim to present a quantum setting oriented preimage attack against 4-round Keccak-224. An important technique we called the allocating rotational cryptanalysis takes the preimage attack into the situation of 2-block preimage recovery ...
Juntao Gao +4 more
core +1 more source
Improved preimage and pseudo-collision attacks on SM3 hash function
Tongxin xuebao, 2018 A preimage attack on 32-step SM3 hash function and a pseudo-collision attack on 33-step SM3 hash function respectively were shown.32-step preimage attack was based on the differential meet-in-the-middle and biclique technique,while the previously known ...
Jian ZOU, Le DONG
doaj +2 more sources
IACR Transactions on Symmetric Cryptology, 2016 In this paper, we describe attacks on the recently proposed Haraka hash functions. First, for the two hash functions Haraka-256/256 and Haraka-512/256 in the family, we show how two colliding messages can be constructed in about 216 function ...
Jérémy Jean
doaj +1 more source
IEEE Access, 2022 In modern cryptography, hash functions are considered as one of the key components for secure communication. They play a vital role in a wide range of applications such as ensuring the authentication and integrity of the data, in forensic investigation ...
Darshana Upadhyay +3 more
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A second preimage attack on zipper hash
Security and Communication Networks, 2015 AbstractThe zipper hash utilizes two‐pass hashing to strengthen the iterated hash functions against the generic attack. In this paper, we analyze the features of zipper hash and several existing generic attacks on hash functions. A new tree structure called inverse‐diamond, which starts from one fixed point and ends with many points, is exploited to ...
Shiwei Chen, Chenhui Jin
openaire +1 more source
Preimage and pseudo collision attacks on round-reduced DHA-256 hash function
Tongxin xuebao, 2013 A preimage attack on DHA-256 hash function reduced to 37-round and a pseudo collision attack on the func-tion reduced to 39-round were proposed respectively.Based on the meet-in-the-middle attack,the Biclique technique was used to improve the preimage ...
Jian ZOU +3 more
doaj +2 more sources