-----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-mumble-15.0-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-mumble-15.0-stretch-amd64.iso
      ec73e46f2c76c893a9801baec7cab0e6734a5e8da7e63c5f9cd4f020fc626d82  turnkey-mumble-15.0-stretch-amd64.iso

    $ sha512sum turnkey-mumble-15.0-stretch-amd64.iso
      bd67054907cbe1eda26c1354a6aa72e8ef9877a4fdf44ac7b84e694127bbea1cf9ff2b8dfd29787b9bcfa03637ef2bd5f2c09b91d9034dfa1ef8b2fb2a378ecb  turnkey-mumble-15.0-stretch-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-mumble-15.0-stretch-amd64.iso.hash
      turnkey-mumble-15.0-stretch-amd64.iso: OK

    $ sha512sum -c turnkey-mumble-15.0-stretch-amd64.iso.hash
      turnkey-mumble-15.0-stretch-amd64.iso: OK

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uU0NKAf+OP/PkIsEwU2qDmw/NFUy8SqoIeHmSIVd9lXXRSBjjbDUVzC7pdtwKQUf
EpD5ZBnaV6ZspUny7lBPDxh/kYP4FYSHdKVRvn178o+A0ZLZzvg5FCQ1R8CVAHt5
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MfYC0rDvh8hzTmgHtJ73KjycGZUheixR5KEHJiCmcK4fwqS21C/NIcGLO1SC4BUY
Z8DtQvfa+FFZKHjyRE2WkqhGkQGXTDmtD+HFcJuyBoAtZHfgQQb9Va17aC2p+X2R
+k6PEAYlRY9pz1k6OnwmG0EhhRvwYw==
=DxfA
-----END PGP SIGNATURE-----