[Cado-nfs-discuss] Using cado-nfs to DLP a p270
Paul.Zimmermann at inria.fr
Sat Jun 10 08:54:29 CEST 2017
when you say "factor a p270", it is not clear if you want to do a factorization
or compute a discrete logarithm.
Assuming you want to compute a discrete logarithm, you should first read
README.dlp, which should answer your questions.
If not, please tell us what is missing in README.dlp (git version).
> From: Peter Lambrechtsen <peter at crypt.nz>
> Date: Sat, 10 Jun 2017 10:25:02 +1200
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> I'm not 100% sure if I am doing the right thing so I thought I would ask
> here to confirm.
> I'm looking to factor a p270 with a fixed generator.
> P 12824716....
> G 2
> Y 8990799.....
> So if I was going to set this up in cado-nfs I would need to do the
> under the parameters/dlp directory copy params.p2dd20 to params.p2dd270
> Then the command line I would use would be:
> ./cado-nfs.py 12824716... -dlp -ell 8990799.. -gfpext 2
> And see if any primes come out of factoring the prime and then sieve the
> Or am I misunderstanding how I would achieve this as I am not sure how I
> would setup the hints if I wasn't using the gfpext = 2 which is the
> generator value.
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