Direct Construction of Optimal Rotational-XOR Diffusion Primitives

Direct Construction of Optimal Rotational-XOR Diffusion Primitives

As a core component of SPN block cipher and hash function, diffusion layer is mainly introduced by matrices built from maximum distance separable (MDS) codes. Up to now, most MDS constructions require to perform an equivalent or even exhaustive search. In this paper, we study the cyclic structure of...

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Veröffentlicht in:IACR Transactions on Symmetric Cryptology 2017-12, p.169-187
Hauptverfasser: Zhiyuan Guo, Renzhang Liu, Si Gao, Wenling Wu, Dongdai Lin
Format: Artikel
Sprache:eng
Schlagworte:
Bit-wise Circulant Matrices
Lightweight Cryptography
MDS Diffusion Layers
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Zusammenfassung:As a core component of SPN block cipher and hash function, diffusion layer is mainly introduced by matrices built from maximum distance separable (MDS) codes. Up to now, most MDS constructions require to perform an equivalent or even exhaustive search. In this paper, we study the cyclic structure of rotational-XOR diffusion layer, a commonly used diffusion primitive over (
ISSN:2519-173X
DOI:10.13154/tosc.v2017.i4.169-187