Note on the cryptanalysis of Speedy

Tim Beyne; Addie Neyt

Paper 2024/262

Note on the cryptanalysis of Speedy

Tim Beyne

, KU Leuven

Addie Neyt, KU Leuven

Abstract

At Eurocrypt 2023, a differential attack on the block cipher Speedy-7-192 was presented. This note shows that the main differential characteristic that this attack is based on has probability zero.

Metadata

Available format(s): PDF
Category: Attacks and cryptanalysis
Publication info: Preprint.
Keywords: differential cryptanalysis quasidifferential trails speedy
Contact author(s): tim beyne @ esat kuleuven be
addie neyt @ esat kuleuven be
History: 2024-02-19: approved; 2024-02-16: received; See all versions
Short URL: https://ia.cr/2024/262
License: CC BY

BibTeX

@misc{cryptoeprint:2024/262,
      author = {Tim Beyne and Addie Neyt},
      title = {Note on the cryptanalysis of Speedy},
      howpublished = {Cryptology ePrint Archive, Paper 2024/262},
      year = {2024},
      note = {\url{https://eprint.iacr.org/2024/262}},
      url = {https://eprint.iacr.org/2024/262}
}