-----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-nginx-php-fastcgi-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-nginx-php-fastcgi-18.0-bookworm-amd64.iso
      8c77ab91be00800d820d7e5b2c3e14af227ac67e3e7e205a2fb6eeef2c932066  turnkey-nginx-php-fastcgi-18.0-bookworm-amd64.iso

    $ sha512sum turnkey-nginx-php-fastcgi-18.0-bookworm-amd64.iso
      ec4cfa6c7445186c7d394d0e8d939fb4b720b5ab9b9346e11d41ed32244923f6b664140625e4be621b19fcf729da49e3c69c5d7be476859582c7bd6a510c724f  turnkey-nginx-php-fastcgi-18.0-bookworm-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-nginx-php-fastcgi-18.0-bookworm-amd64.iso.hash
      turnkey-nginx-php-fastcgi-18.0-bookworm-amd64.iso: OK

    $ sha512sum -c turnkey-nginx-php-fastcgi-18.0-bookworm-amd64.iso.hash
      turnkey-nginx-php-fastcgi-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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=VIBY
-----END PGP SIGNATURE-----