Results 1 to 10 of about 274 (176)

Isogenies on twisted Hessian curves [PDF]

open access: yesJournal of Mathematical Cryptology, 2021
Elliptic curves are typically defined by Weierstrass equations. Given a kernel, the well-known Vélu's formula shows how to explicitly write down an isogeny between Weierstrass curves. However, it is not clear how to do the same on other forms of elliptic
Perez Broon Fouazou Lontouo   +3 more
doaj   +6 more sources

A classification of isogeny‐torsion graphs of Q‐isogeny classes of elliptic curves

open access: yesTransactions of the London Mathematical Society, 2021
Let E be a Q‐isogeny class of elliptic curves defined over Q. The isogeny graph associated to E is a graph which has a vertex for each elliptic curve in the Q‐isogeny class E, and an edge for each cyclic Q‐isogeny of prime degree between elliptic curves ...
Álvaro Lozano-Robledo
exaly   +2 more sources

Orienting supersingular isogeny graphs

open access: yesJournal of Mathematical Cryptology, 2020
We introduce a category of 𝓞-oriented supersingular elliptic curves and derive properties of the associated oriented and nonoriented ℓ-isogeny supersingular isogeny graphs.
Colò Leonardo, Kohel David
exaly   +2 more sources

Towards Isogeny-Based Password-Authenticated Key Establishment

open access: yesJournal of Mathematical Cryptology, 2020
Password authenticated key establishment (PAKE) is a cryptographic primitive that allows two parties who share a low-entropy secret (a password) to securely establish cryptographic keys in the absence of public key infrastructure.
David Jao
exaly   +2 more sources

Cuts and isogenies [PDF]

open access: yesJournal of High Energy Physics, 2021
AbstractWe consider the genus-one curves which arise in the cuts of the sunrise and in the elliptic double-box Feynman integrals. We compute and compare invariants of these curves in a number of ways, including Feynman parametrization, lightcone and Baikov (in full and loop-by-loop variants).
Frellesvig, Hjalte   +3 more
openaire   +6 more sources

How to Compute an Isogeny on the Extended Jacobi Quartic Curves? [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2022
Computing isogenies between elliptic curves is a significant part of post-quantum cryptography with many practical applications (for example, in SIDH, SIKE, B-SIDH, or CSIDH algorithms).
Łukasz Dzierzkowski, Michał Wroński
doaj   +1 more source

Optimal Strategies for Computation of Degree ℓn Isogenies for SIDH [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2020
This article presents methods and algorithms for the computation of isogenies of degree ℓn. Some of these methods are obtained using recurrence equations and generating functions.
Michał Wroński, Andrzej Chojnacki
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

Radical Isogenies [PDF]

open access: yes, 2020
sponsorship: This work was supported in part by the Research Council KU Leuven grants C14/18/067 and STG/17/019, by CyberSecurity Research Flanders with reference number VR20192203, and by the Research Foundation Flanders (FWO) through the WOG Coding Theory and Cryptography. (Research Council KU Leuven|C14/18/067, Research Council KU Leuven|STG/17/019,
Castryck, Wouter   +2 more
openaire   +2 more sources

Practical Usage of Radical Isogenies for CSIDH

open access: yesIEEE Access, 2023
Recently, a radical isogeny was proposed to boost commutative supersingular isogeny Diffie–Hellman (CSIDH) implementation. Radical isogenies reduce the generation of a kernel of a small prime order when implementing CSIDH.
Donghoe Heo, Suhri Kim, Seokhie Hong
doaj   +1 more source

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