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[Cado-nfs-discuss] Using cado-nfs to DLP a p270


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  • From: Peter Lambrechtsen <peter@crypt.nz>
  • To: cado-nfs-discuss@lists.gforge.inria.fr
  • Subject: [Cado-nfs-discuss] Using cado-nfs to DLP a p270
  • 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 following

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 ell.

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.

Cheers

Peter

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