Subject: bug#45631: 27.1; regression: message-forward-ignored-headers no longer applies when forwarding as MIME

From: Lars Ingebrigtsen <[email-masked]>
Date: Mon, 11 Jan 2021 16:09:18 +0100

Daniel Kahn Gillmor <[email-masked]> writes:

> Is the expectation that headers of internal parts of the message are
> being trimmed (in which case, they might be implicated in the signature
> or encryption)?  or, is there some situation i'm missing where they
> might have an impact on the cryptographic structure?

Well, we'd have to include the relevant headers at a minimum:

  Content-Type: multipart/signed; boundary="=-=-=";
	micalg=pgp-sha256; protocol="application/pgp-signature"

But this code is almost a couple of decades old, and I have no idea what
the thought process behind this was at this date.  Anybody know?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no