Paper 2023/117 Original: eprint.iacr.org/2023/117 ↗

Full-Round Differential Attack on ULC and LICID Block Ciphers Designed for IoT

Manjeet Kaur
Tarun Yadav
Manoj Kumar
Dhananjoy Dey
Abstract

The lightweight block ciphers ULC and LICID are introduced by Sliman et al. (2021) and Omrani et al. (2019) respectively. These ciphers are based on substitution permutation network structure. ULC is designed using the ULM method to increase efficiency, memory usage, and security. On the other hand, LICID is specifically designed for image data. In the ULC paper, the authors have given a full-round differential characteristic with a probability of $2^{-80}$. In the LICID paper, the authors have presented an 8-round differential characteristic with a probability of $2^{-112.66}$. In this paper, we present the 15-round ULC and the 14-round LICID differential characteristics of probabilities $2^{-45}$ and $2^{-40}$ respectively using the MILP model.

Metadata
Available format(s)
PDF
Category
Attacks and cryptanalysis
Publication info
Preprint.
History
2023-02-01: last updated
2023-02-01: published
Short URL
https://ia.cr/2023/117
License
https://creativecommons.org/licenses/by-nc-nd/4.0/

BibTeX

@misc{cryptoeprint:2023/117,
      author = {Manjeet Kaur and Tarun Yadav and Manoj Kumar and Dhananjoy Dey},
      title = {Full-Round Differential Attack on ULC and LICID Block Ciphers Designed for IoT},
      howpublished = {Cryptology {ePrint} Archive, Paper 2023/117},
      year = {2023},
      url = {https://eprint.iacr.org/2023/117}
}
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