From mboxrd@z Thu Jan  1 00:00:00 1970
From: Leo Famulari <leo@famulari.name>
Subject: Re: =?utf-8?B?4oCYY29yZS11cGRhdGVz?= =?utf-8?B?4oCZ?= merge is a
	squashed commit
Date: Thu, 4 Aug 2016 16:05:19 -0400
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To: Andy Wingo <wingo@igalia.com>
Cc: guix-devel@gnu.org

On Thu, Aug 04, 2016 at 06:55:34PM +0200, Andy Wingo wrote:
> On Thu 04 Aug 2016 18:44, Leo Famulari <leo@famulari.name> writes:
> 
> > How would the rest of us distinguish between
> >
> > 1) a range of your commits with a signed HEAD
> > 2) a range of your commits with a signed HEAD that you pushed after I
> > pushed a commit created with `git commit --author="Andy Wingo"
> 
> I'm not sure what the threat model here is, and surely this is mostly
> because I am ignorant :)  Would you mind elaborating a bit more?

I admit, the example is really contrived.

My point is that, as far as I know, there is no way to know who exactly
is behind an unsigned Git commit.

The "Author" and "Commit" information seen in `git log --format=full` is
trivially forged, for example by altering the [user] field of your Git
configuration file.