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Supersingular isogeny search

Construct an explicit isogeny between two supersingular elliptic curves.

General curves · classical · unconditional

Any explicit isogeny between supersingular elliptic curves; unconditional asymptotic analysis

3 results · 3 papers
ClassicalProvableSupersingular curves over F_{p^2}pc+o(1)
#PUBLICATION / AUTHORSDATETIME BOUNDSPACE BOUNDEVIDENCE
1The Supersingular Isogeny Problem in Time and Memory $p^{1/3+o(1)}$, UnconditionallyJosé Luis DelgadoarXiv 2609.22018SourceBibTeX / detailsclassical supersingular isogenies unconditional claim preprint18 Sept 2026p1/3 exp(O(sqrt(log p log log p))) = p1/3+o(1) expected timep1/3+o(1) expected memoryPreprintSource checked
1Smoothness of Shortest Isogenies to Frobenius ConjugatesYi Ouyang · Wei Wei · Zheng XuarXiv 2610.21488SourceBibTeX / detailsclassical supersingular isogenies unconditional claim preprint15 Oct 2026p1/3+o(1)Memory of the referenced Wesolowski algorithm; not independently re-derived herePreprintSource checked
3Solving the supersingular isogeny problem in time $p^{2/5+o(1)}$ using bivariate multipoint evaluationAleksei UdovenkoePrint 2026/1575SourceBibTeX / details3 Aug 2026p2/5+o(1)p2/5+o(1)PreprintSource checked
Comparison definition & assumptions
Regime
Any explicit isogeny between supersingular elliptic curves; unconditional asymptotic analysis
Computation
Classical
Rigor
Provable
Instances
Supersingular curves over F_{p^2}
Cost scale
p^{c+o(1)}
Parameter
p
Description
Any explicit isogeny between supersingular elliptic curves; unconditional asymptotic analysis
Comparison rules
Include only bounds established without a smoothness heuristic or GRH. Theoretical multipoint-evaluation bounds need not imply a practical cryptanalytic improvement.
Tags
general supersingular curves, unconditional