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-symfony-12.1-squeeze-i386.iso.sig
      gpg: Signature made Thu Apr 18 14:03:49 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  4dd4ab6145531adc88446d92b6d777b700db05fd
    * md5sum   97edb492adcae73668038333b6fcc153

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)

iQEcBAABAgAGBQJRb/05AAoJEIXCXpWhbrlNs5wH/1nsb9Sm/Emd6iaT/GCzWsMv
s4SU6e11ki69DCIFC5dOxvr4wj97jCS1J+vm/1yS53eho20xMAVMcOLIsvAVHS4j
hcKFqGLl+fEUEeZfodeV9eUQzoU+NCXOzS+QYVa+JxnhHQOP8tDdLo5TV0ipqn5N
pvIys/dHUrt6togZFEznyESPMW/OEiYCqc0u9DXOXqKKAh3klxAxpcjvUN4sxCvg
sPEgUohq9BBg6dwXGB70teZ3VLOazs6Vdaaj4qjPVr5ZkLq86+ZUVT1PhfXqa06a
hJhqNavuF8cHCzVphsQgU9tFV30ebCY7ugpEoBTrrkzVeNv2jJ6fSBmbiRF3D78=
=Xtcb
-----END PGP SIGNATURE-----