-----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-redmine-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-redmine-18.1-bookworm-amd64.iso
      c00c3c6800758847f2078a2896c148d19534b5745b3676f7204c27a8065983b8  turnkey-redmine-18.1-bookworm-amd64.iso

    $ sha512sum turnkey-redmine-18.1-bookworm-amd64.iso
      79ffac38606a41bf8db60376d5b584cf7968e5d20e7d4874cc5149e4a51051500a1c72c80e52c2bd58c679a4b401e3805d9de421ded4ed0299658b5e09df7bda  turnkey-redmine-18.1-bookworm-amd64.iso

   Note, you can compare hashes automatically::

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

    $ sha512sum -c turnkey-redmine-18.1-bookworm-amd64.iso.hash
      turnkey-redmine-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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2jlbQTvY7RBWIMwQrn9Ii5WjmyrV6QB7LENtHejNwuE/Ui4EZXcyOWfw5YHvym7v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=oTaR
-----END PGP SIGNATURE-----