#6384: elliptic curve -- isogeny function is not robust -- it doesn't check
validity of its input
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Reporter: was | Owner: shumow
Type: defect | Status: new
Priority: major | Milestone: sage-4.1
Component: algebra | Keywords:
Reviewer: | Author:
Merged: |
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Comment(by was):
I've changed the description of this ticket to: " isogeny function is not
robust -- it doesn't check validity of its input".
The first easy fix is that you must check that the input list of points is
a subgroup and raise an error if it isn't.
An enhancement can be opened as a separate ticket that would allow for
generators instead. Of course, a better solution is to just create a
"finite subgroups of elliptic curves class".
-- William
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6384#comment:2>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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