This signature file may be used to cryptographically verify file integrity,
like this::

    $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D
    $ gpg --list-keys 0xA16EB94D
      pub   2048R/A16EB94D 2008-08-15 [expires: 2023-08-12]
      uid   Turnkey Linux Release Key <release@turnkeylinux.com>

    $ gpg --verify turnkey-punbb-12.1-squeeze-amd64-ovf.zip.sig
      gpg: Signature made Tue Jun  4 15:28:21 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  81b24027dd95ae8137a6b77bc5f342f5111ae353
    * md5sum   8c5e9593725b4ea4084ae5dc45513ef7

You can calculate these on your end and compare to check for errors, but
cryptographic verification is recommended for security reasons.

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (GNU/Linux)

iQEcBAABAgAGBQJRrgeLAAoJEIXCXpWhbrlNuSAIAOaj3BqbM+lYFSExX1xRbEC2
sIFdUaEkoU07fRvWoQfyc1hPW9NyoVoVTEc+7FeuRh0tIwha403CSg4J1M2dUVR/
cQjZYqHaC0D1jmV+T/DZKSpV3hW+JqVm/2kX6VoUieg3qSUW5mTEos0CeNB+K8Yb
kyXtb9mSlp/BIsPbglFlT+ypVe2SXIVGCBX97N7y9ef8RScy6qZcPc3bxBzCuep7
Y+t7OLIpK53UQWx44w+G4pLsi/fBq79LYuViiUgoePb1AJuKPj0GZpfUrYn51Z8K
lLcibQcbxlwfq4kVOCfwsveDqGKv3GU9NgaX9xazICHmd8/0+BVxI2+0GbZUFFc=
=B14U
-----END PGP SIGNATURE-----