Results 51 to 60 of about 582 (72)
Digital Signatures from Symmetric-Key Primitives [PDF]
, 2017 We propose practically efficient signature schemes which feature several attractive properties: (a) they only rely on the security of symmetric-key primitives (block ciphers, hash functions), and are therefore a viable candidate for post-quantum security,
Christian Rechberger +4 more
core
Quantum Implementation of the SAND Algorithm and Its Quantum Resource Estimation for Brute-Force Attack. [PDF]
Entropy (Basel)Wu H, Feng X, Zhang J.
europepmc +1 more source
Cryptanalysis of Full LowMC and LowMC-M with Algebraic Techniques [PDF]
Lecture Notes in Computer Science, 2021 In this paper, we revisit the difference enumeration technique for LowMC and develop new algebraic techniques to achieve efficient key-recovery attacks. In the original difference enumeration attack framework, an inevitable step is to precompute and store a set of intermediate state differences for efficient checking via the binary search.
Fukang Liu, Takanori Isobe, Willi Meier
exaly +4 more sources
Linear Equivalence of Block Ciphers with Partial Non-Linear Layers: Application to LowMC [PDF]
Lecture Notes in Computer Science, 2019 \(\textsc {LowMC}\) is a block cipher family designed in 2015 by Albrecht et al. It is optimized for practical instantiations of multi-party computation, fully homomorphic encryption, and zero-knowledge proofs. \(\textsc {LowMC}\) is used in the \(\textsc {Picnic}\) signature scheme, submitted to NIST’s post-quantum standardization project and is a ...
Sebastian Ramacher
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New Attacks on LowMC Instances with a Single Plaintext/Ciphertext Pair [PDF]
Lecture Notes in Computer Science, 2021 Cryptanalysis of the LowMC block cipher when the attacker has access to a single known plaintext/ciphertext pair is a mathematically challenging problem.
Subhadeep Banik
exaly +4 more sources
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Lightweight Implementation of the LowMC Block Cipher Protected Against Side-Channel Attacks
Proceedings of the 4th ACM Workshop on Attacks and Solutions in Hardware Security, 2020LowMC is a parameterizable block cipher developed for use in Multi-Party Computation (MPC) and Fully Homomorphic Encryption (FHE). In these applications, linear operations are much less expensive in terms of resource utilization compared to the non-linear operations due to their low multiplicative complexity.
Abubakr Abdulgadir +2 more
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Improved Algebraic Attacks on Round-Reduced LowMC with Single-Data Complexity [PDF]
Lecture Notes in Computer ScienceRecently, Picnic3 has introduced several alternative LowMC instances, which prompts the cryptanalysis competition for LowMC. In this paper, we provide new solutions to the competition with full S-box layers under single-data complexity. First, we present
Yongqiang Li
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