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-simpleinvoices-12.1-squeeze-i386-openstack.tar.gz.sig
      gpg: Signature made Wed Jun  5 00:14:38 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  c17c4401010624edaeea39db8d4a8fa29f9ad75c
    * md5sum   355e3ed42a675d9bca94bd3d2a743993

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)

iQEcBAABAgAGBQJRroLiAAoJEIXCXpWhbrlN6kkH/i4VtVl/twxJoOp7mO9HW7jY
nZdqB/CpzrSPSwR+mxsmtLJhrtQdCOIpftcagcVsIhNaS/yroe4lXeb/d32x7MwV
YMGJRLX8ksylpAz4wkp4JLgLr5zdPGpVJedZPA/fs+oLy2CHZp7liVT0I0Z+wfQE
igH2RYuiUD/txwxMBxu4E3IrhuZzDspe5ZEwG43zSgOjPBiN1guWa3jPJZFqOf3I
bYRYIfUMSK92FsHlJA19XGyJnaZpY8KqztNix4GqsUT/vyzAGNyGIuehwgkeMVoP
09/9A3qKHFLlsBpS+Sc8VfTNCTgZEd9HOj3J+uvazNows2EAy3VyqanTA/EBGw8=
=uvcR
-----END PGP SIGNATURE-----