Date: Fri, 2 Jun 2006 19:06:22 +0200 From: "Otheus (aka Timothy J. Shelling)" <otheus@...il.com> To: john-users@...ts.openwall.com Subject: Re: Re: beta MPI john patch against 1.7.2. > > > OK, but that code is wrong. You should at the very least consider using > dup2() instead of dup(). Perhaps you can educate me here, if you have time. Why is it a bad idea to do: save = dup(2); close(2); open("/dev/null"); \ /// stuff close(2); dup(save); close(save); ? > >You can't reasonably speak of speedups/slowdowns by a certain percentage > > >unless you mention the hash type and the number of different salts for > > >which you did your benchmarks. Ok, noted. Then 299 salts and DES-based crypt(3). > Is there a function which rebuilds the database using the new > > john.pot file > > I don't think you need to "restart word generation", but you need to > ensure that you do the database rebuild from outside of loops that > depend on the database to remain constant. Perhaps doing it at the > beginning of crk_salt_loop() is safe, but I did not verify that. > Indeed, you need to rate-limit this and also check for the database > possibly becoming empty. Was I helpful? Please give your feedback here: http://rate.affero.net/solar Iguess I'll have to play with it and benchmark it a few times to see which was the right solution. -- Otheus otheus@...il.com +43.650.790.2571
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