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Results tagged with spn
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user 92706
A Substitution-Permutation-Network is a structure that has been used to create a number of different block ciphers (e.g., AES, Picollo, Present...)
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1
answer
98
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Construction of key recovery attack in O(2^(n/2))
I have to construct a key recovery attack on symmetric key encryption using a publicly known permutation $\Pi$ in $O(2^\frac{n}{2})$ time using $2^\frac{n}{2}$ queries to an encryption oracle.
The e …
- 21
1
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2
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Differential analysis of SPN
Reference : Tutorial by HM Heys
If we find a differential trail that holds with some non negligible probability for n-1 rounds for a n rounds SPN structure, then we can recover some of the bits of the …
- 21