Improved cryptanalysis of step-reduced SM3
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DOI: 10.1007/s11432-017-9119-6
Abstract: SM3 is the Chinese hash standard and is standardized in GB/T 32905-2016 [1]. As a hash function, it must fulfill three security requirements, collision resistance, preimage resistance, and second preimage resistance. During the ongoing evaluation,… read more here.
Keywords: boomerang attack; step; preimage; hash function ... See more keywords
Preimage homomorphism indices of preimage classes
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DOI: 10.1016/j.topol.2020.107555
Abstract: Abstract Under finite regular covering spaces, each preimage class of the base spaces is covered by some preimage classes of the covering spaces. We find an explicit relationship between those preimage classes in terms of… read more here.
Keywords: formula; preimage homomorphism; preimage; preimage classes ... See more keywords
A note on the variational principle for preimage pressures
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DOI: 10.1063/5.0246272
Abstract: In this paper, two types of variational principles for preimage pressure are considered for non-invertible systems. We first consider the variational principles from the convex analysis viewpoints and investigate the existence of the equilibrium state.… read more here.
Keywords: preimage; note variational; variational principle; principle preimage ... See more keywords