-----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-core_18.0-1_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-core_18.0-1_amd64.tar.gz
      1f5b3009b5fae5644d087a3dd40831edb422cf724e8d74b290b7690cc29a6037  debian-12-turnkey-core_18.0-1_amd64.tar.gz

    $ sha512sum debian-12-turnkey-core_18.0-1_amd64.tar.gz
      2007a1e067b582b29c13bdc528f2ce980da7451ab24eb91b5638b53528e4571d257482f1c9378f490b4db060c73a60e4ce2828d9318b25ae5eb816e2bc6b1ca7  debian-12-turnkey-core_18.0-1_amd64.tar.gz

   Note, you can compare hashes automatically::

    $ sha256sum -c debian-12-turnkey-core_18.0-1_amd64.tar.gz.hash
      debian-12-turnkey-core_18.0-1_amd64.tar.gz: OK

    $ sha512sum -c debian-12-turnkey-core_18.0-1_amd64.tar.gz.hash
      debian-12-turnkey-core_18.0-1_amd64.tar.gz: OK

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

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ZcDiu/O/UtTks4EW+xg3Ao550IFxvawRdNBdvyGH73dmLMh3clX42vU/CXeSlIOR
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yAaHbe9LuiYyaloC4x1hlFcd87caf5J0pj5bkX3hejP83Yr4/kXTWUI1/hd2lzEH
yYYvplTgsVDyxOEAWqkk0IA+BtyMYfBJlzjtl5/hVj7Lv4rtyPZ29XC3sY29dHO0
r2LCA/OUNLnXSmpAZKJ6o1tdVQv+9vpa8kTU+xoG+KaGe28vW6M5SNfFlp7vC4qA
za/BDg1dMf/KpBBdyJ3rA1nGMHVFRjxuvOpfzDCNWTBSCju7m7MA/LUPOkW8jSh0
FxymtEWICwhbeO/rNV50pFiGOda3yDtNodQYmS90F3XRd+OR23fAZCqDTg8LE/3n
E2sjOgCXNDKGLhc4qeOJ3xwbcUjkefdS18Ha9IgkYHz5ovVdNRg5Kp92n7tUZ5EQ
1grpr+pwKZC6ptY0Qk9eRPCW+q/Cqy+dw5qxNOIm9wbM9YjAoi1snivhke6tSXCn
oR2BxMIXwpPCq/jBNdfkxftv0hYBaGbCZp2QPoxb7d+Yz+3zoY0=
=jH3K
-----END PGP SIGNATURE-----