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bug#9017: 24.0.50; gnutls.c: [0] (Emacs) fatal error: Key usage violatio


From: Ted Zlatanov
Subject: bug#9017: 24.0.50; gnutls.c: [0] (Emacs) fatal error: Key usage violation in certificate has been detected.
Date: Wed, 25 Jan 2012 14:29:14 -0600
User-agent: Gnus/5.110018 (No Gnus v0.18) Emacs/24.0.92 (gnu/linux)

On Sun, 17 Jul 2011 21:46:04 -0500 "Roland Winkler" <address@hidden> wrote: 

RW> From the perspective of a user who doesn't know much about smtp, I
RW> agree with Stefan's previous message suggesting that it would be
RW> nice to get rid of the need to have customizations such as

RW>       (setq gnutls-algorithm-priority "normal:-dhe-rsa")

RW> But from my perspective this may go on the wishlist.

I think we're saying that if the priority string generates this error:

gnutls.c: [0] (Emacs) fatal error: Key usage violation in certificate has been 
detected.

we should at least tell the user "hey, maybe 

(setq gnutls-algorithm-priority "normal:-dhe-rsa"

would work for you.  Do you want to try it?"

I don't think it should be tried automatically.  That's convenient but
insecure.  The priority string above basically disables security.

If you agree about the prompting or have a better suggestion we can
unarchive this bug.

Ted





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