linux-kernel - [PATCH 2/2] Documentation/process/maintainer-pgp-guide: Replace broken link to PGP path finder

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Date:   Thu, 12 Aug 2021 09:50:30 +0000
From:   SeongJae Park <sj38.park@...il.com>
To:     corbet@....net
Cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        SeongJae Park <sjpark@...zon.de>
Subject: [PATCH 2/2] Documentation/process/maintainer-pgp-guide: Replace broken link to PGP path finder

From: SeongJae Park <sjpark@...zon.de>

PGP pathfinder[1], which is suggested for finding a trust path to
unknown PGP keys by 'maintainer-pgp-guide.rst', is not working now.
This commit replaces it with other available tools.

[1] https://pgp.cs.uu.nl/

Signed-off-by: SeongJae Park <sjpark@...zon.de>
---
 Documentation/process/maintainer-pgp-guide.rst | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/Documentation/process/maintainer-pgp-guide.rst b/Documentation/process/maintainer-pgp-guide.rst
index 8f8f1fee92b8..29e7d7b1cd44 100644
--- a/Documentation/process/maintainer-pgp-guide.rst
+++ b/Documentation/process/maintainer-pgp-guide.rst
@@ -944,12 +944,11 @@ have on your keyring::
     uid           [ unknown] Linus Torvalds <torvalds@...nel.org>
     sub   rsa2048 2011-09-20 [E]
 
-Next, open the `PGP pathfinder`_. In the "From" field, paste the key
-fingerprint of Linus Torvalds from the output above. In the "To" field,
-paste the key-id you found via ``gpg --search`` of the unknown key, and
-check the results:
-
-- `Finding paths to Linus`_
+Next, find a trust path from Linus Torvalds to the key-id you found via ``gpg
+--search`` of the unknown key.  For this, you can use several tools including
+https://github.com/mricon/wotmate,
+https://git.kernel.org/pub/scm/docs/kernel/pgpkeys.git/tree/graphs, and
+https://the.earth.li/~noodles/pathfind.html.
 
 If you get a few decent trust paths, then it's a pretty good indication
 that it is a valid key. You can add it to your keyring from the
@@ -962,6 +961,3 @@ administrators of the PGP Pathfinder service to not be malicious (in
 fact, this goes against :ref:`devs_not_infra`). However, if you
 do not carefully maintain your own web of trust, then it is a marked
 improvement over blindly trusting keyservers.
-
-.. _`PGP pathfinder`: https://pgp.cs.uu.nl/
-.. _`Finding paths to Linus`: https://pgp.cs.uu.nl/paths/79BE3E4300411886/to/C94035C21B4F2AEB.html
-- 
2.17.1