-----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-drupal7-18.1-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-drupal7-18.1-bookworm-amd64.iso
      5c36eb17c9c76396f8273a6095bd7aefb00e3d0ea9240a4227b87606d358215f  turnkey-drupal7-18.1-bookworm-amd64.iso

    $ sha512sum turnkey-drupal7-18.1-bookworm-amd64.iso
      b097c307d64188b929b87578a97adb3835dca562105642080047a522c4e3a572a4ad72031e1229124de497859c72abf50016d3ad05fe5b2a306973996bc1e97d  turnkey-drupal7-18.1-bookworm-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-drupal7-18.1-bookworm-amd64.iso.hash
      turnkey-drupal7-18.1-bookworm-amd64.iso: OK

    $ sha512sum -c turnkey-drupal7-18.1-bookworm-amd64.iso.hash
      turnkey-drupal7-18.1-bookworm-amd64.iso: OK

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

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Nz5n3OOssUDGIVjYc5SLeztJWwg/BQjPCI7N68CGTe9N7snFwc4GqT/Qp2sT5+sa
6/BOKtvXJQ8bWgGTJuv3ACQjsGVOaRg0frP6Cmt11xyIMAc3I/U3tUoLC/dLmppD
ummG0dum1ikZqQ7WgOlKoUKe5Ac6epPO0SYnET8uqlg0TVZfFr7vcM+ICg3hSCrd
93mdQMQMpk+93eHwUTMkKLrqJ3gSqgNJx+WJGrs37abH/ORnCW/fGAQuXMomVAI8
tE6b9KP8Sf+U4+O4eembp72yR6x0IAjA8d42kc0o/3lUuxhYpV3EesiwK46ThSYh
VnoSHiPVyfg4UPRmkA1n3JVixK3lIJIXVMNa6Xbk/tQRMg7NPUdTcZwmcxPlHZgw
HK8QDNi3F14SLPysM8B4r1zdrhKYFbE6VQrt8W/7cl8DP4exMvQ=
=AXga
-----END PGP SIGNATURE-----