Add PGP fingerprint to 020_installation.rst

I like the idea of verifying the integrity of applications, I download from the internet. So I was very happy to see that restic does provide SHA256-checksums which are signed with the maintainers PGP key.

The only thing I miss: I could not find a direct way to download the used PGP key and verify the keys fingerprint.

Doing some searches, I found:
* https://github.com/restic/rest-server/issues/121
* https://restic.net/blog/2015-09-16/verifying-code-archive-integrity/

To help other restic users, I think you should add information about your PGP key/fingerprint to this installation doc, too. To save you some precious time, I created a draft, how this doc might be expanded, in this pull-request. You are free to accept it or change the text to your liking.

I copied the key/fingerprint text from: ``restic/restic/master/doc/090_participating.rst``

Thank you for your work in restic!
This commit is contained in:
Peter Albrecht 2020-12-13 17:00:00 +01:00 committed by GitHub
parent e96677cafb
commit cd25e36811
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 2 deletions

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@ -188,8 +188,20 @@ are considered stable and releases are made regularly in a controlled manner.
There's both pre-compiled binaries for different platforms as well as the source
code available for download. Just download and run the one matching your system.
The official binaries can be updated in place using the ``restic self-update``
command (needs restic 0.9.3 or later):
On your first installation, if you desire, you can verify the integrity of your
downloads by testing the SHA-256 checksums listed in ``SHA256SUMS`` and verifying
the integrity of the file ``SHA256SUMS`` with the PGP signature in ``SHA256SUMS.asc``.
The PGP signature was created using the key (`0x91A6868BD3F7A907 <https://pgp.mit.edu/pks/lookup?op=get&search=0xCF8F18F2844575973F79D4E191A6868BD3F7A907>`__):
::
pub 4096R/91A6868BD3F7A907 2014-11-01
Key fingerprint = CF8F 18F2 8445 7597 3F79 D4E1 91A6 868B D3F7 A907
uid Alexander Neumann <alexander@bumpern.de>
sub 4096R/D5FC2ACF4043FDF1 2014-11-01
Once downloaded, the official binaries can be updated in place using the
``restic self-update`` command (needs restic 0.9.3 or later):
.. code-block:: console