Paper 2022/1742 Original: eprint.iacr.org/2022/1742 ↗

A Simple Noncommutative UOV Scheme

Lih-Chung Wang
Po-En Tseng
Yen-Liang Kuan
Chun-Yen Chou
Abstract

In this paper, we propose a simple noncommutative-ring based UOV signature scheme with key-randomness alignment: Simple NOVA, which can be viewed as a simplified version of NOVA[48]. We simplify the design of NOVA by skipping the perturbation trick used in NOVA, thus shortens the key generation process and accelerates the signing and verification. Together with a little modification accordingly, this alternative version of NOVA is also secure and may be more suitable for practical uses. We also use Magma to actually implement and give a detailed security analysis against known major attacks.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2024-05-24: last updated
2022-12-19: published
Short URL
https://ia.cr/2022/1742
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2022/1742,
      author = {Lih-Chung Wang and Po-En Tseng and Yen-Liang Kuan and Chun-Yen Chou},
      title = {A Simple Noncommutative UOV Scheme},
      howpublished = {Cryptology {ePrint} Archive, Paper 2022/1742},
      year = {2022},
      url = {https://eprint.iacr.org/2022/1742}
}
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