-----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-foswiki-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-foswiki-18.0-bookworm-amd64.iso
      01ca352caa053cce301e5cc3f259c637002f4c0aff4e364e0dbf1d42c10e73ee  turnkey-foswiki-18.0-bookworm-amd64.iso

    $ sha512sum turnkey-foswiki-18.0-bookworm-amd64.iso
      f81b0d0fb48aadbbe3b3d459e3852b8dca4564825409304b68da617a6b70613c6bc3fad47fefff4819e45bbd1a8a63201f9529450b7623b7138326d2dc17337a  turnkey-foswiki-18.0-bookworm-amd64.iso

   Note, you can compare hashes automatically::

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

    $ sha512sum -c turnkey-foswiki-18.0-bookworm-amd64.iso.hash
      turnkey-foswiki-18.0-bookworm-amd64.iso: OK

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

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sl0D1TN4zl45I0ZPov/gpTEtOb0k4KmC/2fKblw9FWxQl5DBYeILkv2NNjMvERDs
Zh7Ms2doPmqR7S6r5uJwq6+HA0xhktJYGyZv8Q4b9VYjY4qNVNNgvSjV3OQG8pDA
zNBnUDvkcGOXW/Sbw/MyjQ/FKioAL3VR81Va8ljZpU889pPJQWYoQuJKNZGjFgsT
sli3aU0oK+RurBU9qoI3lAabcZn/vnUsUWir4bzclwFVMvKP6ChOWA8xNfkEoXY1
xfArso2IeygD032mXGdCZD2vYwnziYa8D5h+hvIm/kzkOa//7V6Sn7Htn4xxuBzm
95eeBiEPhG33EdM/74RaTf66/Nm9Y+9VT4FRrgv+cvwcQPC3CcAUZFMA8lOAhZHk
34/tGLk3Lc1dYmiP/Q77wz0omdFcj/ZheuV4AfuZ/IX3sjL/OjI=
=WDBk
-----END PGP SIGNATURE-----