Date: Mon, 18 Jun 2018 21:11:37 +0200 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: CAST5 GPU cracking On Mon, Jun 18, 2018 at 06:59:05PM +0000, crack.cast5@...mail.net wrote: > Is the old count really 65536? Yes, that's what old keys used (and many still do). > Is gpg2john tested with such old keys from 2000? I think so, but I'm not sure exactly with which versions of PGP/GnuPG. > Ideally I would download an older PGP and run a test Yes, you should. > but it is hard to find such an old version. No, it is not. PGP 2.6.3i* from mid to late 1990s: http://www.spywarewarrior.com/uiuc/disastry/263multi.htm#download GnuPG 1.2.0+ from 2002+: https://www.gnupg.org/ftp/gcrypt/gnupg/ You might run into minor difficulties building these on a modern system, though. You might end up needing to tweak them or building/running in a VM with a similarly old system. Alexander
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