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-xen.tar.bz2.sig
      gpg: Signature made Tue Jun  4 16:20:50 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  7bbbcffd4860ee2221ea7fcd58739546e37ba43f
    * md5sum   4ab16841f56c628a86b44d8d2017207a

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)

iQEcBAABAgAGBQJRrhPbAAoJEIXCXpWhbrlNDjYIAMZn+e4DjGammxz+VO+x6yQU
dL/YHJCWUsLHugPylxFy4QZSiw1gaHpOkdUDNwB1rjK0sPpKRNQfCnvlDQU4RZBg
RWLdnU5EpmbfnBRz6AhYTVFgqv+42kb85aZA0Z7/2n8/jm5s8x+/H3nKZK4McqiO
8dwp3w3j1fPO/Jg0N+78Nrwq+U1xpQ0Nk5IKs9EDfFTluBQORGqTz9hyD0MB4otz
2ArvONF/jRjxG/zKeHY46YxtL2vA5EnR0diWGco8k1cgu9o7sbtTXPECAYONP0Vt
uJt1bH5jaUJwJaZeAoAhrPfEJO1ZvTVBEGHUgKLoTaMZWPYxpggYbAdTGEqa+tk=
=76dD
-----END PGP SIGNATURE-----