Differential analysis of the ZUC-256 initialisation

Steve Babbage; Alexander Maximov

Paper 2020/1215

Differential analysis of the ZUC-256 initialisation

Steve Babbage and Alexander Maximov

Abstract

This short report contains results of a brief cryptanalysis of the initialisation phase of ZUC-256. We find IV differentials that persist for 26 of the 33 initialisation rounds, and Key differentials that persist for 28 of the 33 rounds.

Metadata

Available format(s): PDF
Category: Secret-key cryptography
Publication info: Preprint.
Keywords: 3GPP 5G ZUC-256
Contact author(s): steve babbage @ vodafone com
alexander maximov @ ericsson com
History: 2020-10-06: received
Short URL: https://ia.cr/2020/1215
License: CC BY

BibTeX

@misc{cryptoeprint:2020/1215,
      author = {Steve Babbage and Alexander Maximov},
      title = {Differential analysis of the {ZUC}-256 initialisation},
      howpublished = {Cryptology {ePrint} Archive, Paper 2020/1215},
      year = {2020},
      url = {https://eprint.iacr.org/2020/1215}
}