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-phpnuke-12.1-squeeze-amd64.iso.sig
      gpg: Signature made Wed May  1 13:22:49 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  2b4714c239ceadf3a4df77356ab430f4510dd91c
    * md5sum   d51c106135ed59852f123c6ef8293cfa

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)

iQEcBAABAgAGBQJRgRcgAAoJEIXCXpWhbrlNa1EH/3oj0klYrov6c1M87tqV2Gpm
+u5l2e2Z4q9aVZGfLBwrPxWPtbGWuQbJIc9TNCTPooJt6q3ZKhleJhrs3xgYnAEQ
C/1JVPzUYpwOCsAaGnaNRRqqXDZKhgGYzqTEkVNatIreC0/2ff67i1oBybim6+ZZ
WnloH0+XGrQAddlyR4ESSUcJkRtwIn2ilpniKAzmSox8PRRueLc2GHpYMSmMYU5z
hxURxcHZ513J8vhiMoZmXWgwJehFSjEXNFoEUaW//K2Gx/sZLcMzYQxAlMLXo/pM
OUjpDqSlGLQ0fGUwCvVkZXrKlY1ChLYEzBvL/JtAWPqvLhzAzg/L+ZaltstJD8E=
=WmVV
-----END PGP SIGNATURE-----