From: Rich Felker <dalias@aerifal.cx>
To: musl@lists.openwall.com
Subject: Re: crypt* files in crypt directory
Date: Thu, 9 Aug 2012 17:17:36 -0400 [thread overview]
Message-ID: <20120809211736.GT27715@brightrain.aerifal.cx> (raw)
In-Reply-To: <20120809155254.GA28303@openwall.com>
On Thu, Aug 09, 2012 at 07:52:55PM +0400, Solar Designer wrote:
> > I don't see any down-size to limiting the iteration count if the limit
> > is reasonable. For instance if the limit were such that higher counts
> > would take more than 1 second on a theoretical 50 GHz variant of a
> > modern cpu (which is faster than a single core will EVER be able to
> > get), there's no way they would be practical to use, and there's no
> > sense in supporting them except to satisfy a fetish for "no arbitrary
> > limits" even when it conflicts with security and robustness. This
> > would at least ensure the function can't get stuck running for
> > hours/days/weeks at a time.
> >
> > The hard part is putting the limit at some point a good bit lower.
>
> This makes some sense.
After some casual tests, I would say somewhere around 16 is
appropriate as the absolute upper cut-off, and 12-14 is probably the
"point a good bit lower" we're aiming for. Anyone else have opinions
on this? Information on what's in common use in the wild? (I would
guess 4-8 is typical in the wild..)
Rich
next prev parent reply other threads:[~2012-08-09 21:17 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-21 15:23 Łukasz Sowa
2012-07-21 17:11 ` Solar Designer
2012-07-21 20:17 ` Rich Felker
2012-07-22 16:23 ` Łukasz Sowa
2012-07-25 7:57 ` Rich Felker
2012-08-08 2:24 ` Rich Felker
2012-08-08 4:42 ` Solar Designer
2012-08-08 5:28 ` Rich Felker
2012-08-08 6:27 ` Solar Designer
2012-08-08 7:03 ` Daniel Cegiełka
2012-08-08 7:24 ` Solar Designer
2012-08-08 7:42 ` Daniel Cegiełka
2012-08-08 21:48 ` Rich Felker
2012-08-08 23:08 ` Isaac Dunham
2012-08-08 23:24 ` John Spencer
2012-08-09 1:03 ` Isaac Dunham
2012-08-09 3:16 ` Rich Felker
2012-08-09 3:36 ` Solar Designer
2012-08-09 7:13 ` orc
2012-08-09 7:28 ` Rich Felker
2012-08-09 7:29 ` Solar Designer
2012-08-09 10:53 ` Solar Designer
2012-08-09 11:58 ` Szabolcs Nagy
2012-08-09 16:43 ` Solar Designer
2012-08-09 17:30 ` Szabolcs Nagy
2012-08-09 18:22 ` Rich Felker
2012-08-09 23:21 ` Rich Felker
2012-08-10 17:04 ` Solar Designer
2012-08-10 18:06 ` Rich Felker
2012-08-09 21:46 ` crypt_blowfish integration, optimization Rich Felker
2012-08-09 22:21 ` Solar Designer
2012-08-09 22:32 ` Rich Felker
2012-08-10 17:18 ` Solar Designer
2012-08-10 18:08 ` Rich Felker
2012-08-10 22:52 ` Solar Designer
2012-08-08 7:52 ` crypt* files in crypt directory Szabolcs Nagy
2012-08-08 13:06 ` Rich Felker
2012-08-08 14:30 ` orc
2012-08-08 14:53 ` Szabolcs Nagy
2012-08-08 15:05 ` orc
2012-08-08 18:10 ` Rich Felker
2012-08-09 1:51 ` Solar Designer
2012-08-09 3:25 ` Rich Felker
2012-08-09 4:04 ` Solar Designer
2012-08-09 5:48 ` Rich Felker
2012-08-09 15:52 ` Solar Designer
2012-08-09 17:59 ` Rich Felker
2012-08-09 21:17 ` Rich Felker [this message]
2012-08-09 21:44 ` Solar Designer
2012-08-09 22:08 ` Rich Felker
2012-08-09 23:33 ` Rich Felker
2012-08-09 6:03 ` Rich Felker
-- strict thread matches above, loose matches on Subject: below --
2012-07-17 9:40 Daniel Cegiełka
2012-07-17 17:51 ` Rich Felker
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120809211736.GT27715@brightrain.aerifal.cx \
--to=dalias@aerifal.cx \
--cc=musl@lists.openwall.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/musl/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).