J. Danger, S. Guilley, P. Hoogvorst, Cédric Murdica, D. Naccache
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Dynamic countermeasure against the Zero Power Analysis
Elliptic Curve Cryptography can be vulnerable to Side-Channel Attacks, such as the Zero Power Analysis (ZPA). This attack takes advantage of the occurrence of special points that bring a zero-value when computing a doubling or an addition of points. This paper consists in analysing this attack. Some properties of the said special points are explicited. A novel dynamic countermeasure is described. The elliptic curve formulæ are updated depending on the elliptic curve and the provided base point.
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