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Message-ID: <20180618191137.GA29446@openwall.com>
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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