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From: Daiki Ueno <ueno@gnu.org>
To: "Neal H. Walfield" <neal@walfield.org>
Cc: Teemu Likonen <tlikonen@iki.fi>,
	"Neal H. Walfield" <neal@gnupg.org>,
	emacs-devel@gnu.org
Subject: Re: epg.el: epg--status-GET_LINE not working?
Date: Fri, 07 Jul 2017 10:37:37 +0200	[thread overview]
Message-ID: <87lgo0bq26.fsf-ueno@gnu.org> (raw)
In-Reply-To: <8737a9we4a.wl-neal@walfield.org> (Neal H. Walfield's message of "Thu, 06 Jul 2017 21:37:41 +0200")

"Neal H. Walfield" <neal@walfield.org> writes:

>> At that time, the GnuPG developers didn't seem to have a consensus on
>> how TOFU is supposed to work:
>
> FWIW, the TOFU modus operandi are unlikely to change at this stage and
> have been stable for nearly a year.

I wouldn't call it "stable" just because the code has been there for a
year.  What about the deployment?  Do you have any example of MUA
implementing this feature, other than Emacs?

> My recollection is that you said: if a recipient is specified by key
> id rather than by email address (e.g., gpg is called like: 'gpg -e -r
> KEYID') and the key has a conflict, the conflict should be ignored.

No.  My concern is why GnuPG detects a conflict, even though it is _not_
given an email address to consider (i.e. signature verification).

> 2. AFAIK, there is no precedence for this behavior in gpg.  Consider
> an expired or revoked key: if you try to use it, gpg will error out
> with "unusable public key."

Erroring out and prompting user are a different behavior.

Perhaps you implemented TOFU this way (prompting user) because you use
Wanderlust (which has bee unmaintained for years)?  If I remember
correctly, Wanderlust requires user an explicit action to verify a
signature.

On the other hand, Gnus and other major MUA automatically verify
signature without user interaction.  I like this much better and
supporting your TOFU implementation would negate this this handiness.

Regards,
-- 
Daiki Ueno







  reply	other threads:[~2017-07-07  8:37 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-26  6:58 epg.el: epg--status-GET_LINE not working? Teemu Likonen
2017-06-26  7:30 ` Daiki Ueno
2017-06-26  7:45   ` Teemu Likonen
2017-07-05  5:21   ` Teemu Likonen
2017-07-05 16:25     ` Daiki Ueno
2017-07-05 19:03       ` Teemu Likonen
2017-07-06 19:42         ` Neal H. Walfield
2017-07-05 23:03       ` Richard Stallman
2017-07-06 19:40       ` Neal H. Walfield
2017-07-06 19:37   ` Neal H. Walfield
2017-07-07  8:37     ` Daiki Ueno [this message]
2017-07-07  9:00       ` Neal H. Walfield
2017-07-10  8:31         ` Daiki Ueno
2017-07-10  9:06           ` Neal H. Walfield
2017-07-06 19:29 ` Neal H. Walfield
2017-07-06 20:05   ` Teemu Likonen

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