Cryptanalysis of DBST, a lightweight block cipher

doi:10.1007/s11704-024-3480-y

Front. Comput. Sci.

2024, Vol. 18

Issue (4) : 184819 https://doi.org/10.1007/s11704-024-3480-y

Information Security

Cryptanalysis of DBST, a lightweight block cipher

Sadegh SADEGHI^1,², Nasour BAGHERI^3,⁴(

)

¹. Department of Mathematics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
². Research Center for Basic Sciences and Modern Technologies (RBST), Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
³. Electrical Engineering Department, Shahid Rajaee Teacher Training University, Tehran 16788-15811, Iran
⁴. School of Computer Science (SCS), Institute for Research in Fundamental Sciences (IPM), Tehran 19395-5531, Iran

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Corresponding Author(s): Nasour BAGHERI

Just Accepted Date: 28 February 2024 Issue Date: 03 April 2024

Cite this article:

Sadegh SADEGHI,Nasour BAGHERI. Cryptanalysis of DBST, a lightweight block cipher[J]. Front. Comput. Sci., 2024, 18(4): 184819.

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https://academic.hep.com.cn/fcs/EN/10.1007/s11704-024-3480-y
https://academic.hep.com.cn/fcs/EN/Y2024/V18/I4/184819

Fig.1 A differential characteristic with the input difference

Δ α = a (32) ‖ b (32) ‖ b (32) ‖ a (32)

to the output difference

Δ β = b (32) ‖ a (32) ‖ a (32) ‖ b (32)

D B S T

1	L, Yan L, Li Y Guo . DBST: a lightweight block cipher based on dynamic S-box. Frontiers of Computer Science, 2023, 17( 3): 173805
2	E, Biham A Shamir . Differential cryptanalysis of DES-like cryptosystems. Journal of Cryptology, 1991, 4( 1): 3–72
3	L Knudsen . DEAL-a 128-bit block cipher. Complexity, 1998, 258( 2): 216

[1]

FCS-23480-OF-SS_suppl_1

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