Results 11 to 20 of about 1,885 (215)

Algebraic approaches for solving isogeny problems of prime power degrees

open access: yesJournal of Mathematical Cryptology, 2020
Recently, supersingular isogeny cryptosystems have received attention as a candidate of post-quantum cryptography (PQC). Their security relies on the hardness of solving isogeny problems over supersingular elliptic curves. The meet-in-the-middle approach
Takahashi Yasushi   +5 more
doaj   +2 more sources

Genus Two Isogeny Cryptography [PDF]

open access: yes, 2019
We study \((\ell ,\ell )\)-isogeny graphs of principally polarised supersingular abelian surfaces (PPSSAS). The \((\ell ,\ell )\)-isogeny graph has cycles of small length that can be used to break the collision resistance assumption of the genus two isogeny hash function suggested by Takashima.
Flynn, E, Ti, Y
openaire   +4 more sources

An atlas of the Richelot isogeny graph

open access: yesIACR Cryptol. ePrint Arch., 2021
We describe and illustrate the local neighbourhoods of vertices and edges in the (2, 2)-isogeny graph of principally polarized abelian surfaces, considering the action of automorphisms. Our diagrams are intended to build intuition for number theorists and cryptographers investigating isogeny graphs in dimension/genus 2, and the superspecial isogeny ...
Florit, Enric, Smith, Benjamin
openaire   +6 more sources

Isogeny graphs and Isogeny Volcanoes

open access: yes, 2020
\textit{Isogeny graphs} are a type of graphs, where the vertices represent elliptic curves and the edges represent isogenies. I will examine some of the structures of these graphs in this thesis. It turns out that the majority of the components of such a graph will be \textit{volcanoes}, see \cref{defn:pvolcano}.
Barakzahi, Hana
openaire   +2 more sources

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

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   +4 more sources

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

Isogeny Graphs and Cryptographic Applications [PDF]

open access: yes, 2023
openIn this thesis, we aim to develop the theory of elliptic curves in order to understand the shape of isogeny graphs. This kind of graphs are used as a new cryptographic primitive to resist against quantum key-recovery attacks. We also prove that these
OSTUZZI, MASSIMO
core  

On the Kolyvagin's formula, the Tate pairing associated to an isogeny, the local Artin map and the Hilberts symbol

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
A proof of nondegeneracy of the Tate pairing and Kolyvagin's formula for elliptic curves with good reductions over an $n$-dimensional $(n\leq 3)$ pseudolocal field, the Tate pairing associated to an isogeny between abelian varieties over pseudolocal ...
V.I. Nesteruk
doaj   +3 more sources

Genus Two Isogeny Cryptography [PDF]

open access: yes, 2022
We study $(\ell,\ell)$-isogeny graphs of principally polarised supersingular abelian surfaces (PPSSAS). The $(\ell,\ell)$-isogeny graph has cycles of small length that can be used to break the collision resistance assumption of the genus two isogeny hash
Yan Bo Ti, E. V. Flynn
core  

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