Paper 2010/398 Original: eprint.iacr.org/2010/398 ↗

Distinguisher for Shabal's Permutation Function

Peter Novotney
Abstract

In this note we consider the Shabal permutation function $\mathcal{P}$ as a block cipher with input $A_p$,$B_p$ and key $C$,$M$ and describe a distinguisher with a data complexity of $2^{23}$ random inputs with a given difference. If the attacker can control one chosen bit of $B_p$, only $2^{21}$ inputs with a given difference are required on average. This distinguisher does not appear to lead directly to an attack on the full Shabal construction.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint.
History
2010-07-20: last updated
2010-07-15: published
Short URL
https://ia.cr/2010/398
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2010/398,
      author = {Peter Novotney},
      title = {Distinguisher for Shabal's Permutation Function},
      howpublished = {Cryptology {ePrint} Archive, Paper 2010/398},
      year = {2010},
      url = {https://eprint.iacr.org/2010/398}
}
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