-----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 debian-12-turnkey-drupal7_18.1-1_amd64.tar.gz.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 debian-12-turnkey-drupal7_18.1-1_amd64.tar.gz
      3530cd2bbbf098db96a1b0c7615e1308560e3ac49fac15034768ee128da12164  debian-12-turnkey-drupal7_18.1-1_amd64.tar.gz

    $ sha512sum debian-12-turnkey-drupal7_18.1-1_amd64.tar.gz
      504f57b0f0fcac5da997de5720bc05ff4d55a6e07b9c765eb3f4e1103137f031da5f2cfd48a54367f6f79cacc77a0e20bf98ec00305859b0d42bdfd5d0ba9efc  debian-12-turnkey-drupal7_18.1-1_amd64.tar.gz

   Note, you can compare hashes automatically::

    $ sha256sum -c debian-12-turnkey-drupal7_18.1-1_amd64.tar.gz.hash
      debian-12-turnkey-drupal7_18.1-1_amd64.tar.gz: OK

    $ sha512sum -c debian-12-turnkey-drupal7_18.1-1_amd64.tar.gz.hash
      debian-12-turnkey-drupal7_18.1-1_amd64.tar.gz: OK

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

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2YqXe1UN4Blxk3W3xdEg5T0tg367BQ7fX5kDfeFPl5ViK8jOHkt2NFXM+teZfM9K
n+9L3FQFDgrK55X+kXfPGM7afic3FIHTh6mOy6oxp8X/5hEyW/X6ROa+klh+62Q6
JBHO723Gl2CfvaOTxGfJ78Efcq1/ipJmsvSXaMqR/Eye+/Bjdujht1a1g7S15WFb
mqGkBJlfmtFw/7FUTbo8qJCHOIwZ6GtYUo5X94unH1iykNO4n+eI3adSHzpn2fM+
VQXo1LBUX6mufRbxioPM/8EYqsC7xQ+NOcZLswuOo1u2K8j3Vvqf/OthQEsnKtpE
p1iRzLUhj5j1/CIu89mrJwG1pnb2HJcZQuwYIWAzmdGABt3Zafc8igmHi/ie7Kda
KysEZpYRpX+DTbd6diTAHE+T8zeRkoTh8zG6qjhlLDtOr6dB2ETi55BpQGITJj1u
/nfjaKImX3hwBv5uQpfY8+bsnEB0N9CPgPw9XK3qCwb4QlHWdqc=
=sndj
-----END PGP SIGNATURE-----