-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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://keybase.io/turnkeylinux/pgp_keys.asc | gpg --import
    $ gpg --list-keys --with-fingerprint release@turnkeylinux.com
      pub   2048R/A16EB94D 2008-08-15 [expires: 2023-08-12]
            Key fingerprint = 694C FF26 795A 29BA E07B  4EB5 85C2 5E95 A16E B94D
      uid   Turnkey Linux Release Key <release@turnkeylinux.com>

    $ gpg --verify turnkey-mambo-15.1-stretch-amd64.iso.hash
      gpg: Signature made using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key <release@turnkeylinux.com>"

    For extra credit you can validate the key's authenticity at:

      https://keybase.io/turnkeylinux

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

    $ sha256sum turnkey-mambo-15.1-stretch-amd64.iso
      0ef356ad085c4f1f4068c444137f85f70e50803b9abdcb85076656b108086ed8  turnkey-mambo-15.1-stretch-amd64.iso

    $ sha512sum turnkey-mambo-15.1-stretch-amd64.iso
      6fc4ae5181908c6796cd8812251bb11f942d2e58c7aa1e016ee950f86aef09893df385f751b90036858b5207ca9ae897da37af56b6b1b24a6bc31504685bd4ff  turnkey-mambo-15.1-stretch-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-mambo-15.1-stretch-amd64.iso.hash
      turnkey-mambo-15.1-stretch-amd64.iso: OK

    $ sha512sum -c turnkey-mambo-15.1-stretch-amd64.iso.hash
      turnkey-mambo-15.1-stretch-amd64.iso: OK

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-----END PGP SIGNATURE-----