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-ovf.zip.sig
      gpg: Signature made Tue Jun  4 15:56:12 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  2f8684121962e4bfdf4a9f470348e4af7843f878
    * md5sum   a0e7105822a1d40e38ec709b0dff8725

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)

iQEcBAABAgAGBQJRrg4TAAoJEIXCXpWhbrlNH5YIAKa32upEpr47QJBaDnGbWdBw
K/OtBKwNfATxDRDTUalZ1oKtPlp6o5Z4drB3hrF+WG7X62drb5k13DcKpiRSEgHD
6AUKTX1tGlaUpXXCnoKNLDTT+HzwzrXSJQl2cPlg7jg5vnBGYwLJW7lLgsYOZwUk
JqnAhsQHuw1mpZBQdpkDMD7GDqzFHX6k+1uuAVL3gowf1FsMeje7SIad/gUz7kcO
UG2qIf0qStsZQ24ii8rcnKGnnqUjVZjj03F7GYE5YnVuabCSU5bPqU7juapJ2m0c
86Eq7jgnWiHgg+eUUIgH85b9iucyayZK1ER5xGrSVdFEZhCi8Pem+Yk1p6hhp3Q=
=+GPF
-----END PGP SIGNATURE-----