Paper 2024/1924

The complexity of solving a random polynomial system

Giulia Gaggero, University of Neuchatel
Elisa Gorla, University of Neuchatel
Abstract

In this paper, we discuss what it means for a polynomial system to be random and how hard it is to solve a random polynomial system. We propose an algebraic definition of randomness, that we call algebraic randomness. Using a conjecture from commutative algebra, we produce a sharp upper bound for the degree of regularity, hence the complexity of solving an algebraically random polynomial system by Groebner bases methods. As a proof of concept, we apply our result to Rainbow and GeMSS and show that these systems are far from being algebraically random.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Published elsewhere. arXiv, poster at MEGA 2022
DOI
https://arxiv.org/abs/2309.03855
Keywords
multivariate cryptographyrandom systemsolving degreedegree of regularity
Contact author(s)
giulia gaggero @ unine ch
elisa gorla @ unine ch
History
2024-11-29: approved
2024-11-27: received
See all versions
Short URL
https://ia.cr/2024/1924
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2024/1924,
      author = {Giulia Gaggero and Elisa Gorla},
      title = {The complexity of solving a random polynomial system},
      howpublished = {Cryptology {ePrint} Archive, Paper 2024/1924},
      year = {2024},
      doi = {https://arxiv.org/abs/2309.03855},
      url = {https://eprint.iacr.org/2024/1924}
}
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