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-rails-12.1-squeeze-i386.iso.sig
      gpg: Signature made Thu Apr 18 19:00:36 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  a601f9735017fefe3a192b15d046406bf0e5b181
    * md5sum   fc40eecae25d6b281c49e80b6f7a681f

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)

iQEcBAABAgAGBQJRcELHAAoJEIXCXpWhbrlNVsQH/jjISEEdrnxMQLk0PasI1QDb
1UJu9KJghlcizeoTpM2KCynjjrVW2+IDHdixsfOM9Q0lEWYzrGMLdQkTtk/ft+kv
td4c/9JKQS+9rX3wLKXlEa/DPPygR6+7YyIIRW/avnTy4qvB21XCG5jVh+t0xco6
vU+A3JUfjJYNObXut4NAhOB37gG8JRqwux4wcMgaBEfSAngW4rTFfrRgle1H50Hr
qqZm80Uvlzu07wqX9HxfgNy2V5N2q1RIx9on3ADm9AcJ68IJQjexXajIthxsvlXJ
4I0QuoL0MvTFpditD9snSoMB6U5l8J0h88bKe4ZMXrweMtL3zUwnrBT3LXPb87s=
=y5S0
-----END PGP SIGNATURE-----