Decomposition attack on SASASASAS

Alex Biryukov; Dmitry Khovratovich

Paper 2015/646 Original: eprint.iacr.org/2015/646 ↗

Decomposition attack on SASASASAS

Alex Biryukov

Dmitry Khovratovich

Abstract

We demonstrate the first attacks on the SPN ciphers with 6, 7, 8, and 9 secret layers. In particular, we show a decomposition attack on the SASASASAS scheme when the S-box size M and the block length N satisfy the condition M^2 < N (for example, 8-bit S-box and 128-bit block).

Metadata

Available format(s): PDF
Category: Secret-key cryptography
Publication info: Preprint.
History: 2015-07-01: last updated; 2015-07-01: published
Short URL: https://ia.cr/2015/646
License: https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2015/646,
      author = {Alex Biryukov and Dmitry Khovratovich},
      title = {Decomposition attack on SASASASAS},
      howpublished = {Cryptology {ePrint} Archive, Paper 2015/646},
      year = {2015},
      url = {https://eprint.iacr.org/2015/646}
}