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National Repository of Grey Literature 2 records found  Search took 0.02 seconds. 
Integral attacks on block ciphers SIMON
 Phamová, Kieu Trang ; Žemlička, Jan (advisor) ; Růžička, Pavel (referee)
This thesis is focused on bit based division property using three subsets. Firstly, we introduce important definitions such as block cipher, integral attack and conventional division property. Then we define bit based division property using three subsets and prove its propagation rules: copy, AND-compression and XOR-compression. We often use these functions in cryptography, therefore in this thesis we will prove how bit based division property with three subsets propagates after the application of these functions.
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Generalized integral property
 Hrúzová, Jana ; Žemlička, Jan (advisor) ; Příhoda, Pavel (referee)
This thesis is based on an article C. Boura and A. Canteaut, Another View of the Division Property, which is focused on division property of sets from Fn 2 . In this thesis we introduce important definitions and propositions about boolean function, polynomials and Reed-Muller codes at the beginning. Then we define parity set of a set from Fn 2 , which helps us to simplify the division property. We also show how sets, which satisfy division property of certain order, look like. From that we could follow how the division property propagate through the substitution-permutation network. 1
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