Paper 2018/692

New Configurations of Grain Ciphers: Security Against Slide Attacks

Diana Maimut and George Teseleanu

Abstract

eSTREAM brought to the attention of the cryptographic community a number of stream ciphers including Grain v0 and its revised version Grain v1. The latter was selected as a finalist of the competition's hardware-based portfolio. The Grain family includes two more instantiations, namely Grain 128 and Grain 128a. The scope our paper is to provide an insight on how to obtain secure configurations of the Grain family of stream ciphers. We propose different variants for Grain and analyze their security with respect to slide attacks. More precisely, as various attacks against initialization algorithms of Grain were discussed in the literature, we study the security impact of various parameters which may influence the LFSR's initialization scheme.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Published elsewhere. BalkanCryptSec 2018, Secitc 2021
Keywords
Grainsecuritynew configurationsslide attacks
Contact author(s)
maimut diana @ gmail com
george teseleanu @ yahoo com
History
2022-03-15: revised
2018-07-19: received
See all versions
Short URL
https://ia.cr/2018/692
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2018/692,
      author = {Diana Maimut and George Teseleanu},
      title = {New Configurations of Grain Ciphers: Security Against Slide Attacks},
      howpublished = {Cryptology ePrint Archive, Paper 2018/692},
      year = {2018},
      note = {\url{https://eprint.iacr.org/2018/692}},
      url = {https://eprint.iacr.org/2018/692}
}
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