Paper 2024/448
Differential Cryptanalysis of a Lightweight Block Cipher LELBC
Abstract
In this study, we investigate the newly developed low energy lightweight block cipher (LELBC), specifically designed for resource-constrained Internet of Things (IoT) devices in smart agriculture. The designers conducted a preliminary differential cryptanalysis of LELBC through mixed-integer linear programming (MILP). This paper further delves into LELBC’s differential characteristics in both single and related-key frameworks using MILP, identifying a nine-round differential characteristic with a probability of $2^{-60}$ in a single-key framework and a 12-round differential characteristic with a probability of $2^{-60}$ in a related-key framework.
Metadata
- Available format(s)
-
PDF
- Category
- Attacks and cryptanalysis
- Publication info
- Preprint.
- Keywords
- Differential CryptanalysisLELBCLightweight Block CipherMILP
- Contact author(s)
-
rmm21101 @ iiitl ac in
tarunyadav sag @ gov in
manojkumar sag @ gov in
ddey @ iiitl ac in - History
- 2024-03-18: approved
- 2024-03-15: received
- See all versions
- Short URL
- https://ia.cr/2024/448
- License
-
CC BY-NC-ND
BibTeX
@misc{cryptoeprint:2024/448,
author = {Manjeet Kaur and Tarun Yadav and Manoj Kumar and Dhananjoy Dey},
title = {Differential Cryptanalysis of a Lightweight Block Cipher {LELBC}},
howpublished = {Cryptology {ePrint} Archive, Paper 2024/448},
year = {2024},
url = {https://eprint.iacr.org/2024/448}
}