-----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  | gpg --import
    $ gpg --list-keys --with-fingerprint release-bookworm-images@turnkeylinux.org
      pub   rsa4096 2023-05-22 [SC] [expires: 2043-05-17]
            2614 7592 087C 0EDE 4214  3B63 7761 DEBA BBCF BA7C
      uid           [ unknown] TurnKey GNU/Linux Bookworm Images (GPG signing key for TurnKey Linux Bookworm Images) <release-bookworm-images@turnkeylinux.org>
      sub   rsa4096 2023-05-22 [S] [expires: 2043-05-17]
      
    $ gpg --verify turnkey-owncloud-18.0-bookworm-amd64.iso.hash
      gpg: Signature made using RSA key ID 26147592087C0EDE42143B637761DEBABBCFBA7C
      gpg: Good signature from "0"

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

    $ sha256sum turnkey-owncloud-18.0-bookworm-amd64.iso
      9f532fd2ee7e0ce28b91ba279348a6895dd0876cfc306267a077548b3e2241f8  turnkey-owncloud-18.0-bookworm-amd64.iso

    $ sha512sum turnkey-owncloud-18.0-bookworm-amd64.iso
      cccbb965c806ec8c138dec588749bd287e46cfa81d4e93e98dd1cadd7f2b260fbaf7580a4981eb52cc0c0713a7e66c99331c9f04960fb09a90525c416f35435b  turnkey-owncloud-18.0-bookworm-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-owncloud-18.0-bookworm-amd64.iso.hash
      turnkey-owncloud-18.0-bookworm-amd64.iso: OK

    $ sha512sum -c turnkey-owncloud-18.0-bookworm-amd64.iso.hash
      turnkey-owncloud-18.0-bookworm-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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+o4jOySWAIyDGP9XUuth/yCUJbKSA0ZVzyPOVna2UOH6wRW86dhjOtSBy4Uu++OV
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s+1dnReBUuBvII4P8qwqNs/salb3h51K154EAB+k7wUreqKuFyXsJBx9SyYdWDgL
GbSE206j2wx/sPd/p6LdxEXFV4AL46RgaIeD3aMNu6urcXv7TJbJzCTbuTn8UR0D
o7T/J0gID7KWy15I7YmQ6dn63Ylkq30OJCG1Cf7WH5DGNN2d3XHD/3cNwOrawM1U
V25Ruo9XDT421i+9M1kOJwLaowJ+CGzmkKC83qqdalwLU+YxVAk=
=VBQv
-----END PGP SIGNATURE-----