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-i386.iso.sig
      gpg: Signature made Thu Apr 18 13:11:56 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  7c164a89ba151018955a6dc48a5d52150d7ea978
    * md5sum   5bfafd6adb2e9a4a9663ecb12ef3944f

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)

iQEcBAABAgAGBQJRb/ELAAoJEIXCXpWhbrlNMq0IALaLg32TvOaDu7/jmS/eOAM4
h5BeNeBbCKkx2xJVF0Zvh0i0WXaIoFlCsvr+vCd6tdapa58mkP89uQgxUBv5fAIa
eZC153SbfCzAWiflpD8mPrWhtHavvK47TghJG43T8Sac+5b1xj1uqGRzr4EhG9K8
G5X7p9ASkqKm+9uc5AIu8uTMufLEzhmYeeGQRtbm0ZBFdUKFNW7Xqetmr5UNgUUl
ndJtFeSOHihq27aZqi8Vpfm/8jXLiZb/+VfEEbRXGuQnPvRhx6CiBRvd2ZL/LenJ
sH7hw56gqA+EFLZbHK6N9vveB7haiMRYvr/yQb5kwcSZxeeGwWMOWPf1JeDUkKw=
=BQrP
-----END PGP SIGNATURE-----