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Title:
A Simple Noncommutative UOV Scheme
Authors: 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.
ePrint: https://eprint.iacr.org/2022/1742
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