-----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-tkldev-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-tkldev-18.1-bookworm-amd64.iso
      a55d30724204d7c64d5d10488b8011c014b16249be8b32284bcfa120b0979411  turnkey-tkldev-18.1-bookworm-amd64.iso

    $ sha512sum turnkey-tkldev-18.1-bookworm-amd64.iso
      7eb8559201a7f5f79d549354b4b21e208eb5957f6ba9ed7e7b1ee91a7f8304c67fe77ddc156a0a709fd12a0e3411dc8d4422f2768c772b7826341199d4e283ca  turnkey-tkldev-18.1-bookworm-amd64.iso

   Note, you can compare hashes automatically::

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

    $ sha512sum -c turnkey-tkldev-18.1-bookworm-amd64.iso.hash
      turnkey-tkldev-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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3jf+jA/+P5IRdbOOQIAmQYqQ7SltVYQ+xDkLOMgcESKlvEGyYMchbA/R/8rbDOgw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=luB4
-----END PGP SIGNATURE-----