From: "Jakub Kądziołka" <kuba@kadziolka.net>
To: 22883@debbugs.gnu.org
Subject: bug#22883: Authenticating Git checkouts: step #1
Date: Tue, 31 Dec 2019 20:16:39 +0100 [thread overview]
Message-ID: <20191231191639.s2o4ycysloj4kwb5@zdrowyportier.kadziolka.net> (raw)
In-Reply-To: <87io14sqoa.fsf@dustycloud.org>
Hi Guix!
Ludovic Courtès wrote:
> --8<---------------cut here---------------start------------->8---
> If you want to hack Guix itself, it is recommended to use the latest
> version from the Git repository:
>
> git clone https://git.savannah.gnu.org/git/guix.git
>
> How do you ensure that you obtained a genuine copy of the repository?
> Guix itself provides a tool to “authenticate” your checkout, but you
> must first make sure this tool is genuine in order to “bootstrap” the
> trust chain. To do that, run:
>
> git verify-commit `git log --format=%H build-aux/git-authenticate.scm`
>
> The output must look something like:
>
> gpg: Signature made Fri 27 Dec 2019 01:27:41 PM CET
> gpg: using RSA key 3CE464558A84FDC69DB40CFB090B11993D9AEBB5
> ...
> gpg: Signature made Fri 27 Dec 2019 01:25:22 PM CET
> gpg: using RSA key 3CE464558A84FDC69DB40CFB090B11993D9AEBB5
> ...
>
> ... meaning that changes to this file are all signed with key
> ‘3CE464558A84FDC69DB40CFB090B11993D9AEBB5’ (you may need to fetch this
> key from a key server, if you have not done it yet).
>
> From there on, you can authenticate all the commits included in your
> checkout by running:
>
> make authenticate
>
> The first run takes a couple of minutes, but subsequent runs are
> faster.
>
> Note: You are advised to run ‘make authenticate’ after every ‘git
> pull’ invocation. This ensures you keep receiving valid changes to
> the repository
> --8<---------------cut here---------------end--------------->8---
Sadly, these instructions don't work from a fresh clone. There is only
Makefile.am and no Makefile itself, so you get
$ make authenticate
make: *** No rule to make target 'authenticate'. Stop.
Moreover, I don't think running 'make authenticate' after 'git pull'
would really work -- after you pulled, git-authenticate could've been
modified, so the verify-commit you did earlier doesn't apply anymore.
There's also the issue of trusting pre-inst-env, which is used to run
the verification. Should that be passed to 'git log --format=%H' next to
git-authenticate.scm? This also applies to any scripts you use to drive
this process, like the Makefile.
Regards,
Kuba
next prev parent reply other threads:[~2019-12-31 19:17 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-02 18:03 bug#22883: Trustable "guix pull" Christopher Allan Webber
2016-03-02 19:26 ` Leo Famulari
2016-03-02 21:07 ` Christopher Allan Webber
2016-04-25 22:25 ` Ludovic Courtès
2016-04-26 0:13 ` Leo Famulari
2016-04-26 0:17 ` Thompson, David
2016-04-26 7:12 ` Ludovic Courtès
2016-04-30 4:43 ` Mike Gerwitz
2016-06-03 16:12 ` bug#22883: Authenticating a Git checkout Ludovic Courtès
2016-06-03 20:17 ` Leo Famulari
2016-06-04 11:04 ` Ludovic Courtès
2016-06-04 4:24 ` Mike Gerwitz
2016-06-04 11:17 ` Ludovic Courtès
2016-06-04 12:45 ` ng0
2016-06-06 12:20 ` ng0
2016-06-04 16:14 ` Mike Gerwitz
2016-06-05 20:39 ` Christopher Allan Webber
2016-06-05 21:15 ` Leo Famulari
2016-06-06 2:41 ` Mike Gerwitz
2016-06-06 7:01 ` Ludovic Courtès
2016-07-22 8:22 ` Ludovic Courtès
2016-07-22 12:58 ` Thompson, David
2016-07-22 13:58 ` Ludovic Courtès
2017-10-24 23:30 ` Ludovic Courtès
2019-12-27 19:48 ` Ricardo Wurmus
2019-12-28 14:47 ` Ludovic Courtès
2019-12-28 16:05 ` Ricardo Wurmus
2019-12-28 17:45 ` Ludovic Courtès
2020-04-30 15:32 ` Ludovic Courtès
2020-05-01 15:46 ` Justus Winter
2020-05-01 16:50 ` Ludovic Courtès
2020-05-01 17:04 ` Ludovic Courtès
2020-05-19 20:23 ` Ludovic Courtès
2020-06-01 14:07 ` bug#22883: Channel introductions Ludovic Courtès
2020-06-02 23:45 ` zimoun
2020-06-03 9:50 ` Ludovic Courtès
2020-06-03 16:20 ` zimoun
2020-06-04 9:55 ` Ludovic Courtès
2020-05-01 17:20 ` bug#22883: Authenticating a Git checkout Ludovic Courtès
2020-05-02 22:02 ` Ludovic Courtès
2020-05-04 8:03 ` Ludovic Courtès
2016-06-01 16:47 ` bug#22883: Discussion of TUF in the context of Git checkout authentication Ludovic Courtès
2016-05-15 12:40 ` bug#22883: Trustable "guix pull" fluxboks
2016-05-16 17:55 ` Thompson, David
2016-05-17 21:19 ` Ludovic Courtès
2016-06-04 16:19 ` Werner Koch
2016-06-04 22:27 ` Ludovic Courtès
2016-06-05 7:51 ` Werner Koch
2016-06-06 21:01 ` Leo Famulari
2016-06-07 8:08 ` bug#22883: gpg2 vs. gpg Ludovic Courtès
2016-06-07 11:25 ` Werner Koch
2016-06-07 12:58 ` ng0
2016-06-05 1:43 ` bug#22883: Trustable "guix pull" Mike Gerwitz
2018-08-28 19:56 ` Vagrant Cascadian
2018-09-02 16:05 ` Ludovic Courtès
2018-09-02 17:15 ` Vagrant Cascadian
2018-09-02 20:07 ` Ludovic Courtès
2019-12-20 22:11 ` bug#22883: Authenticating Git checkouts: step #1 Ludovic Courtès
[not found] ` <87mubmodfb.fsf_-_@gnu.org>
2019-12-21 1:33 ` zimoun
2019-12-27 12:58 ` Ludovic Courtès
[not found] ` <87eewqgc1v.fsf@gnu.org>
2019-12-27 20:47 ` Ricardo Wurmus
[not found] ` <87o8vto5rl.fsf@elephly.net>
2019-12-29 2:45 ` Vagrant Cascadian
[not found] ` <87a77bzw6p.fsf@yucca>
2019-12-29 7:34 ` Efraim Flashner
2019-12-30 21:29 ` Ludovic Courtès
2019-12-31 19:16 ` Jakub Kądziołka [this message]
2020-01-08 13:30 ` Ludovic Courtès
2020-06-02 13:49 ` bug#22883: Authenticating a Git checkout John Soo
2020-06-03 9:33 ` Ludovic Courtès
2020-06-08 21:54 ` bug#22883: [PATCH 1/9] git-authenticate: Cache takes a key parameter Ludovic Courtès
2020-06-08 21:54 ` bug#22883: [PATCH 2/9] git-authenticate: 'authenticate-commits' takes a #:keyring parameter Ludovic Courtès
2020-06-08 21:54 ` bug#22883: [PATCH 3/9] tests: Move OpenPGP helpers to (guix tests gnupg) Ludovic Courtès
2020-06-08 21:54 ` bug#22883: [PATCH 4/9] channels: 'latest-channel-instance' authenticates Git checkouts Ludovic Courtès
2020-06-08 21:54 ` bug#22883: [PATCH 5/9] channels: Make 'validate-pull' call right after clone/pull Ludovic Courtès
2020-06-08 21:54 ` bug#22883: [PATCH 6/9] .guix-channel: Add 'keyring-reference' Ludovic Courtès
2020-06-08 21:54 ` bug#22883: [PATCH 7/9] channels: Automatically add introduction for the official 'guix' channel Ludovic Courtès
2020-06-08 21:54 ` bug#22883: [PATCH 8/9] pull: Add '--disable-authentication' Ludovic Courtès
2020-06-08 21:54 ` bug#22883: [PATCH 9/9] DROP? channels: Add prehistorical authorizations to <channel-introduction> Ludovic Courtès
2020-06-08 22:04 ` bug#22883: [PATCH 1/9] git-authenticate: Cache takes a key parameter Ludovic Courtès
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