GNU bug report logs - #35739
[w32] Bad signature from GNU ELPA for archive-contents

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From: Richard Copley <rcopley <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 35739 <at> debbugs.gnu.org, Noam Postavsky <npostavs <at> gmail.com>
Subject: bug#35739: Bad signature from GNU ELPA
Date: Wed, 15 May 2019 16:12:35 +0100

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On Wed, 15 May 2019, 15:40 Eli Zaretskii, <eliz <at> gnu.org> wrote:

> > From: Richard Copley <rcopley <at> gmail.com>
> > Date: Wed, 15 May 2019 07:46:12 +0100
> > Cc: Noam Postavsky <npostavs <at> gmail.com>, 35739 <at> debbugs.gnu.org
> >
> >  I don't see how disabling decoding could make sense, can you explain?
> >
> > Not in detail, it's not an area of expertise of mine. We call
> > (decode-coding-region (point-min) (point-max) 'undecided) on the
> > payload of "https://elpa.gnu.org/packages/archive-contents",
> > which is raw text. The resulting buffer's buffer-file-coding-
> > system is iso-latin-1-dos.
> >
> >
> >  What does this code do on GNU/Linux?
> >
> > The same. The resulting coding system is iso-latin-1-unix.
>
> That URL seems to bring ASCII text.  Are you saying that GPG produces
> a wrong signature because EOL format is significant for it?  (Please
> forgive silly questions about GPG: I seldom if ever use it.)
>

Getting the signature involves applying a hash function to the bytes
in question. It's desirable that two different byte sequences give rise
to two different signatures, even if the difference is a carriage return.

In any case, if we don't want EOL conversion, we should bind
> inhibit-eol-conversion to a non-nil value, and change nothing else.
> But this should not be done in url-insert-buffer-contents, it should
> be done in package.el, because the former is a general utility and not
> necessarily needs to inhibit EOL conversion for all of its callers.
>

Of course. I was confirming Noam's hunch, not suggesting a change.
Sorry that wasn't clear.

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