From: Lars Magne Ingebrigtsen <larsi@gnus.org>
To: "Toke Høiland-Jørgensen" <toke@toke.dk>
Cc: emacs-devel@gnu.org
Subject: Re: [PATCH RFC] GnuTLS: Support TOFU certificate checking.
Date: Wed, 08 Oct 2014 18:52:46 +0200 [thread overview]
Message-ID: <m3mw96wlk1.fsf@stories.gnus.org> (raw)
In-Reply-To: <87tx3emvwv.fsf@alrua-karlstad.karlstad.toke.dk> ("Toke \=\?iso-8859-1\?Q\?H\=F8iland-J\=F8rgensen\=22's\?\= message of "Wed, 08 Oct 2014 17:19:12 +0200")
Toke Høiland-Jørgensen <toke@toke.dk> writes:
>> I like the simplicity of it. It would be nice to do this inside Emacs
>> itself (it's OK if it requires some kind of `emacs --batch' call,
>> doesn't have to be immediate). Either way, the errors should tell us
>> specifically what to run from the command line in these two cases:
>
> I have an updated version where I split out the parameters into
> :tofu-strict and :tofu-auto, where the latter will automatically add a
> certificate that hasn't been seen before (and fail on mismatch only).
> This might be more suitable to have turned out by default.
Well, I kinda think the TOFU stuff is a fine band-aid, but we really
need a suture here, and the band-aid really sounds like it would more
get in the way of getting what we really need. :-)
Anything less than what I described earlier in this thread doesn't
really give the Emacs users the security they need. For instance, it
doesn't help with the man-in-the-middle-stripping-the-STARTTLS-announcement.
To make this workable (i.e., if we add lots of manual management, users
won't bother), we need a more complete solution.
I don't really see the TOFU thing in itself (which would arise naturally
as a side-effect from the Emacs-driven certificate handling we need) as
a step forward, I'm sorry to say.
But it all depends on how realistic the `open-network-stream' scenario I
proposed is -- I don't know the details of how the gnutls library works,
and whether it would allow us the proposed work flow.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2014-10-08 16:52 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-07 21:16 [PATCH RFC] GnuTLS: Support TOFU certificate checking Toke Høiland-Jørgensen
2014-10-07 21:35 ` Lars Magne Ingebrigtsen
2014-10-07 21:55 ` Toke Høiland-Jørgensen
2014-10-08 11:53 ` Lars Magne Ingebrigtsen
2014-10-08 11:58 ` Lars Magne Ingebrigtsen
2014-10-08 12:10 ` Toke Høiland-Jørgensen
2014-10-08 12:18 ` Lars Magne Ingebrigtsen
2014-10-08 12:39 ` Toke Høiland-Jørgensen
2014-10-08 12:42 ` Lars Magne Ingebrigtsen
2014-10-08 12:53 ` Eli Zaretskii
2014-10-08 12:56 ` Lars Magne Ingebrigtsen
2014-10-08 13:03 ` Eli Zaretskii
2014-10-08 13:06 ` Lars Magne Ingebrigtsen
2014-10-08 13:17 ` Eli Zaretskii
2014-10-08 13:25 ` Lars Magne Ingebrigtsen
2014-10-08 13:38 ` Eli Zaretskii
2014-10-08 13:47 ` Lars Magne Ingebrigtsen
2014-10-08 13:59 ` Toke Høiland-Jørgensen
2014-10-08 14:05 ` Lars Magne Ingebrigtsen
2014-10-08 14:01 ` Eli Zaretskii
2014-10-08 14:09 ` Lars Magne Ingebrigtsen
2014-10-08 14:11 ` Eli Zaretskii
2014-10-08 14:56 ` Ted Zlatanov
2014-10-08 15:31 ` Lars Magne Ingebrigtsen
2014-10-08 15:37 ` Ted Zlatanov
2014-10-09 2:43 ` Stephen J. Turnbull
2014-10-09 13:17 ` Ted Zlatanov
2014-10-08 13:28 ` Toke Høiland-Jørgensen
2014-10-08 14:52 ` Ted Zlatanov
2014-10-08 15:19 ` Toke Høiland-Jørgensen
2014-10-08 15:45 ` Ted Zlatanov
2014-10-08 16:09 ` Toke Høiland-Jørgensen
2014-10-08 16:52 ` Lars Magne Ingebrigtsen [this message]
2014-10-08 17:07 ` Toke Høiland-Jørgensen
2014-10-09 13:10 ` Ted Zlatanov
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=m3mw96wlk1.fsf@stories.gnus.org \
--to=larsi@gnus.org \
--cc=emacs-devel@gnu.org \
--cc=toke@toke.dk \
/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 external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.