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-codeigniter-12.1-squeeze-amd64-vmdk.zip.sig
      gpg: Signature made Tue Jun  4 12:47:43 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  c59018f64e9552fb353e6c60eb757fdfb5be3026
    * md5sum   676808d29fd5269b121d7002796a2bc3

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)

iQEcBAABAgAGBQJRreHlAAoJEIXCXpWhbrlNIgMIAJyTtn0/WZCw5mzeQB3dQaLa
dpHISKNtsG8/mWxyS4WAheNN/xNGq1MZbD1+oaD0Ead3fEktBdjWYkNSYE0NCYrI
0ru62JCyrQmbBtInVKEn/yMByxbbgIdVscJv8kYcv6+2oLTOZpfhSefAJ3jNL3Ju
zKnTqYq0EgHiRxgbY3gbbrh8j8kCTfPxY+f8zKVTRcC8O760XGXbzPmYjVe5+EKs
1Hz4ebhIGriJLq18TEXdna+aSnS/8Of1DYsioEnGTaY6KNFp9fB1gXyovPsmrVWz
1xnOr2/V1a82IHZPehpDwWq7soIHsjr6sFKAgIqppaBGcnxNp7TMHVRk4JfM9vg=
=Iuif
-----END PGP SIGNATURE-----