Results 11 to 20 of about 1,931 (172)

Multiradical isogenies. [PDF]

open access: yesIACR Cryptol. ePrint Arch., 2021
We argue that for all integers $N \geq 2$ and $g \geq 1$ there exist multiradical isogeny formulae, that can be iteratively applied to compute $(N^k, \ldots, N^k)$-isogenies between principally polarized $g$-dimensional abelian varieties, for any value
Castryck, Wouter, Decru, Thomas
core   +5 more sources

Isogenies on Kummer Surfaces [PDF]

open access: yesMathematics of Computation
We first give a cleaner and more direct approach to the derivation of the Fast model of the Kummer surface. We show how to construct efficient ( N ,
Corte-Real Santos, M, Flynn, EV
core   +4 more sources

Digital Signature in Class Group of Isogenies Elliptic Curves

open access: yesБезопасность информационных технологий, 2010
Digital signature protocol based on Schnorr protocol is proposed. Protection against quantum attacks is achieved by using isogenies computation problem.
J. V. Gel, A. G. Rostovtsev
doaj   +1 more source

Isogeny and overconvergence

open access: yesComptes Rendus. Mathématique
In this paper, we apply Tsuzuki’s main theorem in [12] to establish a criterion for when two abelian varieties over a function field $K$ of characteristic $p$ are isogenous. Specifically, assuming that their endomorphism algebras tensored with $\mathbb{Q}
Chiarellotto, Bruno, Trihan, Fabien
doaj   +2 more sources

On the Efficient Representation of Isogenies

open access: yes
We survey different (efficient or not) representations of isogenies, with a particular focus on the recent "higher dimensional" isogeny representation, and algorithms to manipulate them.
Robert, Damien
openaire   +3 more sources

Computing isogenies between finite Drinfeld modules [PDF]

open access: yes, 2022
International audienceWe prove that isogenies between Drinfeld modules over a finite field can be computed in polynomial time.
Wesolowski, Benjamin   +1 more
core   +2 more sources

Radical Isogenies on Montgomery Curves [PDF]

open access: yes, 2021
We work on some open problems in radical isogenies. Radical isogenies are formulas to compute chains of $N$-isogenies for small $N$ and proposed by Castryck, Decru, and Vercauteren in Asiacrypt 2020.
Tomoki Moriya, Hiroshi Onuki
core   +1 more source

Fast computation of 2-isogenies in dimension 4 and cryptographic applications [PDF]

open access: yes
Dimension 4 isogenies have first been introduced in cryptography for the cryptanalysis of Supersingular Isogeny Diffie-Hellman (SIDH) and have been used constructively in several schemes, including SQIsignHD, a derivative of SQIsign isogeny based ...
Dartois, Pierrick
core   +6 more sources

Proving knowledge of isogenies: a survey

open access: yesDesigns, Codes and Cryptography, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ward Beullens   +3 more
openaire   +5 more sources

Horizontal racewalking using radical isogenies [PDF]

open access: yes, 2022
We address three main open problems concerning the use of radical isogenies, as presented by Castryck, Decru and Vercauteren at Asiacrypt 2020, in the computation of long chains of isogenies of fixed, small degree between elliptic curves over finite ...
Wouter Castryck   +3 more
core   +1 more source

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