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-phplist-12.1-squeeze-amd64.iso.sig
      gpg: Signature made Wed May  1 13:21:26 UTC 2013 using RSA key ID A16EB94D
      gpg: Good signature from "Turnkey Linux Release Key"

For your convenience we also include file checksums:

    * sha1sum  c04967fce64bd198272c40d6925cbb414ad2f298
    * md5sum   bbf51747db9aa694a494e01c22e6d732

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)

iQEcBAABAgAGBQJRgRbNAAoJEIXCXpWhbrlN4wYH/A8Mq8tpmk8ZC6HUE+GwrBCE
Ep0JynejCtGcP9DuAuqF7jf0IkGtjQXgyH2PgsecFML3BXwznD2ymkL2mziVCJCu
wfyE6Zqgi002nqmJWEEH1rmvu/njjTtS3+d/YH7n3lc07DgLjRbDXk129ssc5SMO
mM1n1d74sE//w3BZbwyFbh1mEWnT+ggwsfm6QWuD0orMrJsHON26+d5HZEq4UOwS
rJazviWTFo/2IbUcOB+CvxhK+ccmeWIzf8tYSE28lKHNJ91JpH8Kzvp8XdKR/bTb
1C4oQbk4YUCBSqTQ22Jb8sqx3TUxO4lJKG/vowXeRJL8Z8D0/H6hWJEJu6zF53c=
=WUpZ
-----END PGP SIGNATURE-----