Paper 2023/1374

On Weighted-Sum Orthogonal Latin Squares and Secret Sharing

Koji Nuida, Kyushu University, National Institute of Advanced Industrial Science and Technology
Tomoko Adachi, Shizuoka Institute of Science and Technology
Abstract

Latin squares are a classical and well-studied topic of discrete mathematics, and recently Takeuti and Adachi (IACR ePrint, 2023) proposed (2,n)-threshold secret sharing based on mutually orthogonal Latin squares (MOLS). Hence efficient constructions of as large sets of MOLS as possible are also important from practical viewpoints. In this letter, we determine the maximum number of MOLS among a known class of Latin squares defined by weighted sums. We also mention some known property of Latin squares interpreted via the relation to secret sharing and a connection of Takeuti-Adachi's scheme to Shamir's secret sharing scheme.

Metadata
Available format(s)
PDF
Category
Foundations
Publication info
Preprint.
Keywords
Latin squaresupper boundssecret sharing
Contact author(s)
nuida @ imi kyushu-u ac jp
adachi tomoko @ sist ac jp
History
2023-09-15: approved
2023-09-14: received
See all versions
Short URL
https://ia.cr/2023/1374
License
Creative Commons Attribution-NonCommercial-NoDerivs
CC BY-NC-ND

BibTeX

@misc{cryptoeprint:2023/1374,
      author = {Koji Nuida and Tomoko Adachi},
      title = {On Weighted-Sum Orthogonal Latin Squares and Secret Sharing},
      howpublished = {Cryptology {ePrint} Archive, Paper 2023/1374},
      year = {2023},
      url = {https://eprint.iacr.org/2023/1374}
}
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