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-phpbb-12.1-squeeze-amd64.iso.sig
      gpg: Signature made Wed May  1 13:22:35 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  bdfd64c6d6c320acc06a51c290cdd45bbd4b1290
    * md5sum   5a1cb633c17132c0b4e5ccad594fe8e6

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)

iQEcBAABAgAGBQJRgRcSAAoJEIXCXpWhbrlNInUH+walOud511KoTxALvjepd+aQ
+LHCQ/O1hdAc6jHfGuQA7CUFuhog3MCAXoLF24FQtUWwW98Zi7HmCT/1kfTHtzcf
QStLcw5sLVPfz99EPhs+SgPBb2/5ny6quQW/3rKYITmPK9YU2tK0NAtZ1Shwxi4X
711EJ81YQEhUZXTxORowPhLN2xG0Qi0heNdASs8i5HKUnY8iN2QCqY3qghNkuVB1
TKtyU7I8QZ8RXX057wxlft9Q22Pg5U4dIaNzrQ8+LUy4++j0vURd5UGG0i8PfFBh
66zvScfXhjkyT7W9g3d+U8qJMtXKu5TPS9kX+3PN1VuMdeIOHy2h5ZczMgeddwU=
=tbHF
-----END PGP SIGNATURE-----