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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

Cuts and isogenies [PDF]

open access: yesJournal of High Energy Physics, 2021
We 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 ...
Hjalte Frellesvig   +3 more
doaj   +6 more sources

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

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

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

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

Verifiable delay functions and delay encryptions from hyperelliptic curves

open access: yesCybersecurity, 2023
Verifiable delay functions (VDFs) and delay encryptions (DEs) are two important primitives in decentralized systems, while existing constructions are mainly based on time-lock puzzles.
Chao Chen, Fangguo Zhang
doaj   +1 more source

Review of Chosen Isogeny-Based Cryptographic Schemes

open access: yesCryptography, 2022
Public-key cryptography provides security for digital systems and communication. Traditional cryptographic solutions are constantly improved, e.g., to suppress brute-force attacks.
Bartosz Drzazga, Łukasz Krzywiecki
doaj   +1 more source

Derived isogenies and isogenies for abelian surfaces

open access: yes, 2021
In this paper, we study the twisted Fourier-Mukai partners of abelian surfaces. Following the work of Huybrechts [doi:10.4171/CMH/465], we introduce the twisted derived equivalence between abelian surfaces. We show that there is a twisted derived Torelli theorem for abelian surfaces over algebraically closed fields with characteristic $\neq 2,3$.
Li, Zhiyuan, Zou, Haitao
openaire   +2 more sources

An Efficient Signature Scheme From Supersingular Elliptic Curve Isogenies

open access: yesIEEE Access, 2019
Since supersingular elliptic curve isogenies are one of the several candidate sources of hardness for building post-quantum cryptographic primitives, the research of efficient signature schemes based on them is still a hot topic.
Yan Huang   +3 more
doaj   +1 more source

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