Corpus ID: 15895393

Substitution-Permutation Network Cryptosystems Using Key-Dependent S-Boxes

@inproceedings{Keliher1997SubstitutionPermutationNC,
  title={Substitution-Permutation Network Cryptosystems Using Key-Dependent S-Boxes},
  author={Liam T. Keliher},
  year={1997}
}
Substitution-permutation networks (SPNs) are an important class of private key cryptosystems, having substitution boxes (s-boxes) as a critical internal component. Much of the research into s-boxes has focussed on determining those s-box properties which yield a cryptographically strong SPN. We investigate s-boxes which are generated in a pseudo-random fashion from a key. This approach has the advantage of decreasing the e ectiveness of certain attacks. In addition, combinatorial results give… Expand
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