Problem in DLP when ell^2 divides p-1
Imported issue: Initially reported by @gaudry in https://gforge.inria.fr/tracker/?group_id=2065&aid=21770
This was reported by xy deng xydustc@gmail.com.
p=151440279042178677941343085741099474268076160842612621652546972133382329997082947379
g=19949766930411270306668294137308289937916118972020095034511986256818128108805781483
h=93713940437580074972064268435269728686470279710184480732710453545187493203386004778
x = 226774811612991860879488430887950467
Here ell = 285023628191166202616360813602039547 divides twice p-1.
Running CADO-NFS gives 0 as a log of h.
We can remark that h is of order exactly ell, here.