-----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/master/keys/tkl-buster-images.asc | gpg --import
    $ gpg --list-keys --with-fingerprint release-buster-images@turnkeylinux.org
      pub   rsa4096 2020-02-05 [SC] [expires: 2040-01-31]
            A8B2 EF42 8781 9B03 D351  6CCA 7623 1C20 425E 9772
      uid           [ unknown] TurnKey GNU/Linux Buster Images (GPG signing key for TurnKey Linux Buster Images) <release-buster-images@turnkeylinux.org>
      sub   rsa4096 2020-02-05 [S] [expires: 2040-01-31]
      
    $ gpg --verify turnkey-concrete5-16.0-buster-amd64.iso.hash
      gpg: Signature made using RSA key ID A8B2EF4287819B03D3516CCA76231C20425E9772
      gpg: Good signature from "0"

2. Recalculate the image hash and make sure it matches your choice of hash below.

    $ sha256sum turnkey-concrete5-16.0-buster-amd64.iso
      406b853e2c33de923b3ad9c2df7a66763e0f26d9d0da5a22262a99539dc98c7f  turnkey-concrete5-16.0-buster-amd64.iso

    $ sha512sum turnkey-concrete5-16.0-buster-amd64.iso
      39dfd476ecfc51f3a4a0f205efd27e1919efd1604f11d91016360aab0a18595a6a2d2cde5ebda2d01bf8341bbfeb4d6585e0a12dcb7834cbd4bd65a760b20436  turnkey-concrete5-16.0-buster-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-concrete5-16.0-buster-amd64.iso.hash
      turnkey-concrete5-16.0-buster-amd64.iso: OK

    $ sha512sum -c turnkey-concrete5-16.0-buster-amd64.iso.hash
      turnkey-concrete5-16.0-buster-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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=49Zx
-----END PGP SIGNATURE-----