* bug#17660: 24.3; gnutls-min-prime-bits is 256
@ 2014-06-01 13:23 Juliusz Chroboczek
2014-06-05 14:30 ` Ted Zlatanov
2014-12-08 19:46 ` Lars Magne Ingebrigtsen
0 siblings, 2 replies; 3+ messages in thread
From: Juliusz Chroboczek @ 2014-06-01 13:23 UTC (permalink / raw)
To: 17660
In gnutls.el, I see
(defcustom gnutls-min-prime-bits 256
...)
This uses 256 bits for Diffie-Helman rather than the gnutls default, which
seems awfully low to me.
It looks like this was lowered due to bug#11267. I suggest that it really
should be set to a reasonable value.
-- Juliusz
^ permalink raw reply [flat|nested] 3+ messages in thread
* bug#17660: 24.3; gnutls-min-prime-bits is 256
2014-06-01 13:23 bug#17660: 24.3; gnutls-min-prime-bits is 256 Juliusz Chroboczek
@ 2014-06-05 14:30 ` Ted Zlatanov
2014-12-08 19:46 ` Lars Magne Ingebrigtsen
1 sibling, 0 replies; 3+ messages in thread
From: Ted Zlatanov @ 2014-06-05 14:30 UTC (permalink / raw)
To: Juliusz Chroboczek; +Cc: 17660
On Sun, 01 Jun 2014 15:23:49 +0200 Juliusz Chroboczek <jch@pps.univ-paris-diderot.fr> wrote:
JC> In gnutls.el, I see
JC> (defcustom gnutls-min-prime-bits 256
JC> ...)
JC> This uses 256 bits for Diffie-Helman rather than the gnutls default, which
JC> seems awfully low to me.
JC> It looks like this was lowered due to bug#11267. I suggest that it really
JC> should be set to a reasonable value.
Please read through bug#11267 and bug#15057. The recommended solution
from the GnuTLS maintainer was to avoid the DH exchange that requires
`gnutls-min-prime-bits' altogether. So the proper fix seems to be to
change the default for `gnutls-algorithm-priority' but that may break
some people's setups (just like raising `gnutls-min-prime-bits' would).
Ted
^ permalink raw reply [flat|nested] 3+ messages in thread
* bug#17660: 24.3; gnutls-min-prime-bits is 256
2014-06-01 13:23 bug#17660: 24.3; gnutls-min-prime-bits is 256 Juliusz Chroboczek
2014-06-05 14:30 ` Ted Zlatanov
@ 2014-12-08 19:46 ` Lars Magne Ingebrigtsen
1 sibling, 0 replies; 3+ messages in thread
From: Lars Magne Ingebrigtsen @ 2014-12-08 19:46 UTC (permalink / raw)
To: Juliusz Chroboczek; +Cc: 17660
Juliusz Chroboczek <jch@pps.univ-paris-diderot.fr> writes:
> In gnutls.el, I see
>
> (defcustom gnutls-min-prime-bits 256
> ...)
>
> This uses 256 bits for Diffie-Helman rather than the gnutls default, which
> seems awfully low to me.
>
> It looks like this was lowered due to bug#11267. I suggest that it really
> should be set to a reasonable value.
In Emacs 25, people who want higher security can use the Network
Security Manager to achieve this, so I think the default here is
reasonable. Closing.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-06-01 13:23 bug#17660: 24.3; gnutls-min-prime-bits is 256 Juliusz Chroboczek
2014-06-05 14:30 ` Ted Zlatanov
2014-12-08 19:46 ` Lars Magne Ingebrigtsen
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