Cryptography
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lyrically wicked

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 3 years, 4 months
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  • Last seen Oct 17 '20 at 6:21

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10 Security difference between $\mathrm{Keccak}(k\mathbin\|x)$ and $\mathrm{Keccak}(x\mathbin\|k)$ Jul 31 '18
6 What is the size of codomain of a function $G(x) = F^A(x) \oplus F^B(x)$, where $F(x) = \text{Keccak-}f[1600](x)$? Jun 14 '18
5 What is the collision resistance of a 2048-bit hash based on SHA-3? Apr 25 '18
5 What does the term “nontrivial rotation” mean? Nov 20 '18
4 Aside from Keccak, are there any keyed/unkeyed permutations where the choice of all rotation constants is not based on heuristic methods? Jun 10 '19
4 How to construct a “toy” version of Gimli permutation for three (instead of twelve) 32-bit words? Jul 17 '19
4 Is it theoretically possible for the output of SHAKE to be an infinite concatenation of the same 512-bit block? Sep 23 '17
4 What is the expected number of different sequences of bits in the collection that contains $2^{800}$ elements? Oct 18 '17
4 Is it reasonable to assume that $\text{Keccak-}f[25n]$ block permutation is defined for any value of $n$? Dec 18 '18
3 What are the values of $w$ such that the corresponding $\text{Keccak-}f[25w]$ function is invertible (bijective)? Feb 1 '19
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