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-web2py-12.1-squeeze-amd64.iso.sig
      gpg: Signature made Wed May  1 14:10:30 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  1a762753de07a033df39b4da440d01c8a91ff795
    * md5sum   4c513a0305f5f3f48f3c45ae881b6c19

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)

iQEcBAABAgAGBQJRgSJMAAoJEIXCXpWhbrlNau4H/i5ebiK5GRh9sN5nzY9SWPWQ
imtzhy5LkTZxT5zHm4KZRhJD7NgAywtN8GM6oxDhmKTSV/xZTwNiIOVuOz+vB18M
AecR6r4PnIs013MYUU8yJnhLLSYeZekCX8vbhbzmXXtz8bib2LFGmuV5a8lxdHuu
BlPUur2mFSHLivtrxG9Lid1THW1qIWO9AnlImHhvRDdgiUWuvzPNZmDtcMysxHBO
MxsOr9XhU8yqlDOSorDXqhP7nsJ2VVzXclzo+1SfkY7lVBsxmEHiUADU+cQSa6Mm
jFzZ1yQ3tHyJDgF6YZFtbB88cyIk8/k/Kml8l4+2cve41dsjAclQNW6RWhhfuNs=
=HMsp
-----END PGP SIGNATURE-----