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-amd64-openstack.tar.gz.sig
      gpg: Signature made Tue Jun  4 16:12:05 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  628ecf5f0863c8d94f0b698a70094b1b5c2a7af9
    * md5sum   59710cb027aa727713021dc75d4fff7e

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)

iQEcBAABAgAGBQJRrhHNAAoJEIXCXpWhbrlNdnwH+wfvF22eKR+BVnjD4fn+aI9m
aySEwh59awERtjipN7jo/0rlk3sgQYFOMRYraK5sQZq6pT4/qbVqQYo8hCF5R+bO
G8sMRsw5+6ZRsxDqKxhr1u6q6NsXkw+3B02j3H84HlUzwWhOTnLdyStoadkAs+O5
14PkwxRFp3CBFi2747sdfmeoG9GQl52jsboFDMfv5VZhhwKCo1mJpnGHkMOUx1ci
AAKX2sVQPsofeHC/WGgV6kfzHB79b9rqw3nIh97OGqCql0gVYPCJM54zzkUcnfhM
eCFXHJYfzH3AkpB5GEsRMLl26q76CQohMMqb4NmNj67/rGKm6WzzuNWhaKzLQJ0=
=xvUJ
-----END PGP SIGNATURE-----