-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

To ensure the image has not been corrupted in transmit or tampered with,
perform the following two steps to cryptographically verify image integrity:

1. Verify the authenticity of this file by checking that it is signed with our
   GPG release key:

    $ curl https://raw.githubusercontent.com/turnkeylinux/common/master/keys/tkl-buster-images.asc | gpg --import
    $ gpg --list-keys --with-fingerprint release-buster-images@turnkeylinux.org
      pub   rsa4096 2020-02-05 [SC] [expires: 2040-01-31]
            A8B2 EF42 8781 9B03 D351  6CCA 7623 1C20 425E 9772
      uid           [ unknown] TurnKey GNU/Linux Buster Images (GPG signing key for TurnKey Linux Buster Images) <release-buster-images@turnkeylinux.org>
      sub   rsa4096 2020-02-05 [S] [expires: 2040-01-31]
      
    $ gpg --verify turnkey-drupal9-16.0-buster-amd64.iso.hash
      gpg: Signature made using RSA key ID A8B2EF4287819B03D3516CCA76231C20425E9772
      gpg: Good signature from "0"

2. Recalculate the image hash and make sure it matches your choice of hash below.

    $ sha256sum turnkey-drupal9-16.0-buster-amd64.iso
      ddd546a4afbfec0e2e7f687f32b28624afc993eb200f698c81f47cc202bb45a7  turnkey-drupal9-16.0-buster-amd64.iso

    $ sha512sum turnkey-drupal9-16.0-buster-amd64.iso
      542b1eba3943a76c784d78efabec1589e965acc7c3a0c33b78fa7b1eaa9234a4806bf462117cafb15b39e67610a03bee1457461c6ed29a50b9d5c7bafb42d227  turnkey-drupal9-16.0-buster-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-drupal9-16.0-buster-amd64.iso.hash
      turnkey-drupal9-16.0-buster-amd64.iso: OK

    $ sha512sum -c turnkey-drupal9-16.0-buster-amd64.iso.hash
      turnkey-drupal9-16.0-buster-amd64.iso: OK

    Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted.

-----BEGIN PGP SIGNATURE-----
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=nmCy
-----END PGP SIGNATURE-----