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Efficient Implementations of Square-root Vélu's Formulas
April 16, 2024, 9:18 a.m. |
IACR News www.iacr.org
ePrint Report: Efficient Implementations of Square-root Vélu's Formulas
Jianming Lin, Weize Wang, Chang-An Zhao, Yuhao Zheng
In the implementation of isogeny-based cryptographic schemes, Vélu’s formulas are essential for constructing and evaluating odd degree isogenies. Bernstein et al. proposed an approach known as √élu, which computes an ?-isogeny at a cost of̃ (√?) finite field operations. This paper presents two key improvements to enhance the efficiency of the implementation of √élu from two aspects: optimizing the partition involved in √élu and …
cost cryptographic eprint report implementation report root square wang
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