2016
DOI: 10.1007/978-3-319-55227-9_9
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A Generalised Successive Resultants Algorithm

Abstract: The Successive Resultants Algorithm (SRA) is a root-finding algorithm for polynomials over Fpn and was introduced at ANTS in 2014 [19]. The algorithm was designed to be efficient when the characteristic p is small and n > 1. In this paper, we abstract the core SRA algorithm to arbitrary finite fields and present three instantiations of our general algorithm, one of which is novel and makes use of a series of isogenies derived from elliptic curves with sufficiently smooth order.

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Cited by 2 publications
(2 citation statements)
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“…In comparison to Berlekamp, SRA is interesting only when the polynomial has many roots. In [GvdHL15] and [DPP16], the root finding is improved for split and separable polynomials, and when the cardinality of multiplicative group is smooth. In our case, this method is not interesting because the HFE polynomials does not have many roots.…”
Section: Efficient Implementation Of Root Finding In F 2 N [X]mentioning
confidence: 99%
See 1 more Smart Citation
“…In comparison to Berlekamp, SRA is interesting only when the polynomial has many roots. In [GvdHL15] and [DPP16], the root finding is improved for split and separable polynomials, and when the cardinality of multiplicative group is smooth. In our case, this method is not interesting because the HFE polynomials does not have many roots.…”
Section: Efficient Implementation Of Root Finding In F 2 N [X]mentioning
confidence: 99%
“…Recently, the successive resultants algorithm (SRA) [Pet14] has been proposed to find the roots of a polynomial in small characteristic, and this work has been extended for split polynomials in general finite fields. In [DPP16], root finding is improved for split and separable polynomials, when the cardinality of multiplicative group is smooth. In the case of the HFE polynomial F in F 2 n [X], F has a sparse structure and its coefficients are in a field of small characteristic.…”
Section: Introductionmentioning
confidence: 99%