Paper 2023/1954 Original: eprint.iacr.org/2023/1954 ↗

Fiat-Shamir Goes Tropical

Rémi Géraud-Stewart
David Naccache
Ofer Yifrach-Stav
Abstract

In a recent ePrint, Brown and Monico propose new attacks on the tropical signature scheme of Chen, Grigoriev and Shpilrain. This note provides a new countermeasures against those attacks. Thereby, we (temporarily?) shift the fire from the signature algorithm to redirect attacks on the key and on tropical polynomial factorization.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
History
2023-12-27: last updated
2023-12-24: published
Short URL
https://ia.cr/2023/1954
License
https://creativecommons.org/publicdomain/zero/1.0/

BibTeX

@misc{cryptoeprint:2023/1954,
      author = {Rémi Géraud-Stewart and David Naccache and Ofer Yifrach-Stav},
      title = {Fiat-Shamir Goes Tropical},
      howpublished = {Cryptology {ePrint} Archive, Paper 2023/1954},
      year = {2023},
      url = {https://eprint.iacr.org/2023/1954}
}
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