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Re: [openpgp] Combining signature with signer's public key

"Neal H. Walfield" <neal@walfield.org> Fri, 11 December 2020 08:54 UTC

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Date: Fri, 11 Dec 2020 09:54:36 +0100
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From: "Neal H. Walfield" <neal@walfield.org>
To: holger krekel <holger@merlinux.eu>
Cc: Kai Engert <kaie@kuix.de>, openpgp@ietf.org
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Subject: Re: [openpgp] Combining signature with signer's public key
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Hi Holger,

On Fri, 11 Dec 2020 09:31:14 +0100,
holger krekel wrote:
> the reason several e-mail app implementors decided for a header 
> in the discussions leading up to the Autocrypt spec in 2017
> was precisely to not confuse users with weird attachments. related FAQ: 
> https://autocrypt.org/faq.html#why-are-you-using-headers-rather-than-attached-keys 
> 
> What do you find problematic about it?  It's been used in several mail
> apps (including Thunderbird/Enigmail up until TB78 in August 2020) and
> did not cause any UX issues or complaints. I'd kindly ask you to consider
> not inventing another method now without strong reason.

Thanks for brining this up.  My response was too narrow, and your
recommendation is better.  In particular, it has the nice advantage
that it is possible to attach the sender's certificate (and some other
meta-data) even if the message is not signed.

Neal

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