-----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-drupal9-16.1-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-drupal9-16.1-buster-amd64.iso
      acfa8a7a811f986f899c902c8b71980b196cc284510086815e16fca74e3edf03  turnkey-drupal9-16.1-buster-amd64.iso

    $ sha512sum turnkey-drupal9-16.1-buster-amd64.iso
      edb4691db22650f5ff9e5dbd92ee19e8bdc6558982c5f9fef6269a8a5c872da6016df70aa54fe88c68e6d214e5e3daa055c9a758af9b086219936e7e19824dd4  turnkey-drupal9-16.1-buster-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-drupal9-16.1-buster-amd64.iso.hash
      turnkey-drupal9-16.1-buster-amd64.iso: OK

    $ sha512sum -c turnkey-drupal9-16.1-buster-amd64.iso.hash
      turnkey-drupal9-16.1-buster-amd64.iso: OK

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

-----BEGIN PGP SIGNATURE-----

iQIzBAEBCgAdFiEE8ZCki1TcVrLH8k3LrF6wBJPlvBwFAmA7b5YACgkQrF6wBJPl
vBwWCxAAg7lxHYwyK7ysMrwxtFDCMMtcdDM/kiPdbx/Ln+r5zxnRF8ngWGRTXof8
ipEmyJh/UrZIrlNZEsK5pzY59we9dfcuNL8qgARNubVRkfqtJBlePr5nFePPCBIT
PNcTkHbbwuE6APWEkTzbClIKGxg52BWfLC5D8RrsT6gz2XD1VBB6+sLRC4dH9ObI
k8CWkxaXz9dQsW3gAi4qOOqQYEPpzGGGygYLDm0P3lnpN7IbDG1Bmw9NCdx2x83X
IQxhqteumtMNA4U0esol9sqszhHWingkL3LNqojLihClsW511J98EctPbHdiItcM
k60sUy4EiMmN4oms/T225W5P723faJP4Dpo5OvYMtQUaMEorrgZFHbZ2eXguxQHN
8yjvySljWzHVA0Gfu7B/qGWKjc8+ETiUQZT8nPzJmPrGR4edPBTDmq/aRVQezGHo
jH0Qo2FcE9RVKpniQ/9505hoIjkrZqvh254bDq8laW/Lr5UQIrYTqDrrCR4m5n07
dEhlKE/BmPEz+Qfgst8UP0m8XAJF+rylWomc95Vr8zBU6WEWuw7CrBkraOcyGt9B
l45i95SptlAmpgYrNEh8wwC0Lto45ESrDZad8VQmwHAkooRWvZM/+mOe4y9QaSTQ
HR7duKT6pZQiOeWsdoYmHiyhGudDLZ+RcqrQfQQ1o9/HEweTG6A=
=vN62
-----END PGP SIGNATURE-----