-----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/18.x/keys/tkl-bookworm-images.asc | 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-openvpn-18.1-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-openvpn-18.1-bookworm-amd64.iso
      21d3e43e7f6101c6aafec8a3b4fd004fe150f7b229e122293257b79a92e5a82a  turnkey-openvpn-18.1-bookworm-amd64.iso

    $ sha512sum turnkey-openvpn-18.1-bookworm-amd64.iso
      8f87d42187a23932edc2a1c237aaf17713e4fb61c36876213d4eb3df404051d661b971cd616aa010fb9cfb862b0a4dd66760e9eb47985fe7247b0f8013cad2b6  turnkey-openvpn-18.1-bookworm-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-openvpn-18.1-bookworm-amd64.iso.hash
      turnkey-openvpn-18.1-bookworm-amd64.iso: OK

    $ sha512sum -c turnkey-openvpn-18.1-bookworm-amd64.iso.hash
      turnkey-openvpn-18.1-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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3jdrCxAAhWKMwkoJYDJU4OK8VOxWPGo3hZwRs3DSeiMvim5ADqlAzFYJG3MS4ixF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=2jwP
-----END PGP SIGNATURE-----